A portable seawater desalination device

Abstract

The present invention relates to the technical field of seawater desalination treatment, and specifically, to a portable seawater desalination device. It includes a connector, a filter and a pressure regulating component. A compression chamber is arranged inside the connector, a gas storage cavity that is unidirectionally communicated with the compression chamber is arranged on one side, and a water inlet pipe that is unidirectionally communicated with the compression chamber is arranged on the other side; the pressure regulating component is used to change the internal pressure of the compression chamber, and the filter is arranged on one side of the connector and communicated with the compression chamber; in this portable seawater desalination device, an air-blocking mechanism is provided to guide the air and seawater in the water inlet pipe, so that the air in the water inlet pipe can be pre-stored in the gas storage cavity, realizing the utilization of the air in the water inlet pipe. Thus, when cleaning the RO membrane, the number of times the user presses the seawater desalination device is reduced, and the physical energy consumption of the user is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of seawater desalination treatment, and more specifically, to a portable seawater desalination device. Background Art

[0002] With the continuous development of seawater desalination technology, it has gradually become an important means to solve the shortage of water resources in coastal areas. However, most seawater desalination devices usually rely on conventional energy sources and require stable energy supply and long-term sites. For islands far from land and lacking energy, ships with limited power supply, offshore platforms, maritime emergency rescue, wilderness survival, scientific research, and other special occasions with short-term and small-scale seawater desalination requirements, manually-driven portable seawater desalination devices are attracting more and more attention due to their advantages such as compact structure, small size, risk resistance, and diversified usage conditions. Therefore, manually-driven portable seawater desalination devices have an urgent market demand.

[0003] Portable seawater desalination devices usually use RO (reverse osmosis) membranes for seawater desalination. The working principle of the RO (reverse osmosis) membrane is to overcome the osmotic pressure of water by applying pressure, allowing water molecules to pass through the membrane pores while retaining solutes, thereby achieving the purpose of purifying water.

[0004] Since the RO (reverse osmosis) membrane requires pressure to purify water, after using a portable seawater desalination device, due to the disappearance of pressure, some seawater will remain at the RO (reverse osmosis) membrane, causing bacteria and salts in the seawater to adhere to the surface of the RO (reverse osmosis) membrane and affecting the water quality of the next use.

[0005] Although current seawater desalination devices can avoid the occurrence of the above problems, their countermeasures are basically to remove the inlet pipe from the seawater after use, and then continue to press the portable seawater desalination device to inhale external gas into the portable seawater desalination device, using the gas to blow out the seawater in the RO (reverse osmosis) membrane, thereby reducing the seawater residue. However, this requires people to press the seawater desalination device for a long time, which will consume a lot of physical energy. Summary of the Invention

[0006] The purpose of the present invention is to provide a portable seawater desalination device to solve the problems raised in the above background art.

[0007] To achieve the above purpose, a portable seawater desalination device is provided, including a connector, a filter, and a pressure regulating component. A compression chamber is provided inside the connector, a gas storage cavity is provided on one side and is in one-way communication with the compression chamber, and an inlet pipe is provided on the other side and is in one-way communication with the compression chamber; the pressure regulating component is used to change the internal pressure of the compression chamber, and the filter is provided on one side of the connector and is in communication with the compression chamber;

[0008] A blocking mechanism communicating with the air storage cavity is provided at the connection between the compression chamber and the filter. The blocking mechanism is used to adjust the communication state between the compression chamber and the filter, so that before the seawater enters the compression chamber, the air in the water inlet pipe is compressed into the air storage cavity through the pressure regulating component; after the seawater enters the compression chamber through the water inlet pipe, the seawater is transported into the filter.

[0009] A release mechanism is provided between the air storage cavity and the filter. After stopping filtration, the compressed gas stored in the air storage cavity enters the filter through the opening of the release mechanism to blow out the seawater in the filter.

[0010] As a further improvement of this technical solution, a first one-way valve is provided at the connection between the water inlet pipe and the compression chamber. The air storage cavity and the compression chamber are connected through an exhaust pipe, and a second one-way valve is arranged inside the exhaust pipe;

[0011] When negative pressure is generated in the compression chamber, the compression chamber sucks the air and seawater in the water inlet pipe into the compression chamber through the first one-way valve; when positive pressure is generated in the compression chamber, the air and seawater in the compression chamber can enter the air storage cavity through the second one-way valve.

[0012] As a further improvement of this technical solution, the pressure regulating component includes a piston block slidably arranged inside the compression chamber and a driving member for driving the piston block to reciprocate inside the compression chamber; where:

[0013] The inner circle of the compression chamber has a circular structure to correspond to the shape of the piston block; one end of the compression chamber close to the piston block penetrates through one side of the connecting head.

[0014] As a further improvement of this technical solution, the driving member includes a pressure rod rotatably connected to the end of the connecting head at one end. A transmission rod is rotatably connected between the pressure rod and the piston block. By applying a pressing force or a pulling force to the pressure rod, the distance between the pressure rod and the piston block is changed, so as to drive the piston block to move correspondingly through the transmission rod.

[0015] As a further improvement of this technical solution, the filter includes a hollow cylindrical shell and a RO membrane installed inside the shell; one end of the shell is communicated with the compression chamber, the other end is communicated with a clear water pipe, and one end of the bottom close to the clear water pipe is communicated with a return water pipe; where:

[0016] A third one-way valve is arranged at the connection between the shell and the compression chamber for allowing the seawater in the compression chamber to enter the shell;

[0017] One end of the clear water pipe is communicated with the central pipe of the RO membrane.

[0018] As a further improvement of the technical solution, the blocking mechanism includes a slideway that is connected to the air storage cavity at one end, passes through the compression chamber at the other end, and then penetrates through the side wall of the connector, and a blocking plate elastically arranged in the slideway. A through hole is arranged through one side of the blocking plate. Under normal conditions, the through hole is misaligned with the compression chamber;

[0019] A water volume sensing mechanism is arranged at the connection between the slideway and the air storage cavity. After seawater enters the air storage cavity, the compressed gas in the air storage cavity drives the blocking plate to move so that the through hole is communicated with the compression chamber;

[0020] The blocking plate is slidably connected to the slideway, and a return spring that elastically connects the two is arranged between one end of the blocking plate and one side of the slideway;

[0021] The blocking plate is located between the exhaust pipe and the release mechanism.

[0022] As a further improvement of the technical solution, the water volume sensing mechanism includes a baffle plate elastically arranged longitudinally at the connection between the air storage cavity and the slideway, and a water receiving box for collecting seawater flowing out of the exhaust pipe; an opening is arranged at the top of the water receiving box, and the bottom end of the baffle plate is bent to one side to form a connection end for supporting the water receiving box; where:

[0023] The volume of the baffle plate is larger than the connection between the slideway and the air storage cavity, and the side wall of the baffle plate fits with the side wall of the air storage cavity to seal the connection between the slideway and the air storage cavity;

[0024] A connection spring that elastically connects the two is arranged between the bottom of the connection end of the baffle plate and the bottom of the air storage cavity;

[0025] When the weight of the seawater in the water receiving box overcomes the elasticity of the connection spring, the water receiving box drives the baffle plate to slide down, opening the connection between the slideway and the air storage cavity.

[0026] As a further improvement of the technical solution, a guiding pipe with one end facing into the water receiving box is arranged at the end of the exhaust pipe.

[0027] As a further improvement of the technical solution, the release mechanism includes an air delivery pipe that is connected to the air storage cavity at one end and to the compression chamber at the other end, and a chute longitudinally penetrating through the air delivery pipe at the bottom end, where:

[0028] The air delivery pipe is located between the blocking mechanism and the filter;

[0029] A valve rod with a diameter larger than that of the air delivery pipe is slidably arranged in the sliding groove. An installation spring is arranged at the bottom of the valve rod, and a stress rod with a height higher than the top of the connector extends upward at the top. Moreover, an inward concave portion is arranged in the middle of the valve rod. By applying a pressing force to the stress rod, the concave portion of the valve rod is moved to the position of the air delivery pipe, so that the sliding groove is communicated with the filter.

[0030] As a further improvement of this technical solution, a valve communicating with the air storage cavity is arranged on the side wall of the connector.

[0031] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0032] 1. In this portable seawater desalination device, the air and seawater in the water inlet pipe are guided through the arranged blocking mechanism, so that the air in the water inlet pipe can be pre-stored in the air storage cavity, realizing the utilization of the air in the water inlet pipe. Thus, when cleaning the RO membrane, the number of times the user presses the seawater desalination device is reduced, and the physical energy consumption of the user is lowered.

[0033] 2. In this portable seawater desalination device, the seawater is sensed through the arranged water receiving box, so that the water initially sucked into the water inlet pipe will be discharged into the water receiving box. Thus, when impurities at the bottom are brought up during the process of the water inlet pipe touching the bottom, the impurities entering the RO membrane are reduced, and the service life of the RO membrane is prolonged. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 It is a schematic diagram of the internal structure of the connector of the present invention;

[0036] Figure 3 It is a schematic cross-sectional structure diagram of the filter element carrier of the present invention;

[0037] Figure 4 It is a schematic structure diagram of the blocking mechanism of the present invention Figure 1 ;

[0038] Figure 5 It is a schematic structure diagram of the blocking mechanism of the present invention Figure 2 ;

[0039] Figure 6 It is a schematic structure diagram of the guiding pipe of the present invention;

[0040] Figure 7 It is a schematic structure diagram of the releasing mechanism of the present invention;

[0041] Figure 8 It is a schematic working state diagram of the partition board of the present invention Figure 1 ;

[0042] Figure 9 Schematic diagram of the working state of the partition board of the present invention Figure 2 。

[0043] The meanings of the various labels in the figure are as follows:

[0044] 100, connector; 101, compression chamber; 102, gas storage chamber; 103, water inlet pipe; 104, exhaust pipe; 105, first one-way valve; 106, second one-way valve; 110, filter; 111, RO membrane; 112, clean water pipe; 113, return water pipe; 114, third one-way valve; 120, blocking mechanism; 121, slideway; 122, partition board; 123, through hole; 124, return spring; 125, baffle; 126, connecting spring; 127, water receiving box; 128, guiding pipe; 130, release mechanism; 131, air delivery channel; 132, chute; 133, valve stem; 134, mounting spring; 135, force-bearing rod; 140, piston block; 141, rotating shaft; 142, pressing rod; 143, transmission rod; 150, valve. Specific embodiments

[0045] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation of the present invention.

[0047] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more, unless otherwise specifically defined.

[0048] During the initial use of a traditional portable seawater desalination device, the air in the water inlet pipe 103 is sucked in and then discharged, resulting in the air in the water inlet pipe 103 not being utilized. This is why, as mentioned in the above background art, after use, the water inlet pipe 103 needs to be removed from the seawater, and then the portable seawater desalination device needs to be pressed multiple times.

[0049] For this reason, please refer to Figure 1 and Figure 2 As shown, a portable seawater desalination device is provided, including a connector 100 and a filter 110. Taking the state of the connector 100 in Figure 2 as a reference, a compression chamber 101 is provided inside the connector 100. A gas storage chamber 102 communicating with the compression chamber 101 is provided on the left side, a water inlet pipe 103 communicating with the compression chamber 101 is provided on the right side, a pressure regulating component for changing the internal pressure of the compression chamber 101 is provided above, and a filter 110 communicating with the compression chamber 101 is provided below; among them, a first one-way valve 105 is provided at the connection between the water inlet pipe 103 and the compression chamber 101, and the gas storage chamber 102 and the compression chamber 101 are communicated through an exhaust pipe 104, and a second one-way valve 106 is provided inside the exhaust pipe 104; in this way, by driving the pressure regulating component to work, the pressure regulating component switches the compression chamber 101 between positive pressure and negative pressure, and cooperates with the one-way delivery of the first one-way valve 105 and the second one-way valve 106. When negative pressure is generated in the compression chamber 101, the compression chamber 101 sucks the air and seawater in the water inlet pipe 103 into the compression chamber 101 through the first one-way valve 105; when positive pressure is generated in the compression chamber 101, the air in the compression chamber 101 enters the gas storage chamber 102 through the second one-way valve 106 for storage, and the seawater enters the filter 110 for filtration.

[0050] Among them, the movement direction of air and seawater is controlled by a blocking mechanism 120. Therefore, in the present invention, a blocking mechanism 120 communicating with the gas storage chamber 102 is provided at the connection between the compression chamber 101 and the filter 110. The blocking mechanism 120 is used to adjust the communication state between the compression chamber 101 and the filter 110, so that before the seawater enters the compression chamber 101, the air in the water inlet pipe 103 is compressed into the gas storage chamber 102 through the pressure regulating component; after the seawater enters the compression chamber 101 through the water inlet pipe 103, the seawater is conveyed into the filter 110.

[0051] In addition, a release mechanism 130 is provided between the gas storage chamber 102 and the filter 110. After stopping filtration, by opening the release mechanism 130, the compressed gas stored in the gas storage chamber 102 enters the filter 110 to blow out the seawater in the filter 110.

[0052] That is to say, the air and seawater in the water inlet pipe 103 are guided by the provided blocking mechanism 120, so that the air in the water inlet pipe 103 can be pre-stored in the air storage cavity 102, realizing the utilization of the air in the water inlet pipe 103. Thus, when cleaning the RO membrane 111, the number of times the user presses the seawater desalination device is reduced, and the physical energy consumption of the user is decreased.

[0053] It can be understood that when the length of the water inlet pipe 103 is relatively long, the air storage cavity 102 can store more compressed gas. That is to say, when enough compressed gas is stored, there is no need to press the seawater desalination device at this time, and the compressed gas in the air storage cavity 102 can be directly used to complete the cleaning of the RO membrane 111.

[0054] Specifically, there are various structures of the current pressure regulating components. For example, the relatively common piston type, screw type, rotor type, and so on. The present invention is implemented by using a piston type pressure regulating component. In Figure 2 and Figure 3 In the illustrated embodiment, the pressure regulating component includes a piston block 140 slidably disposed inside the compression chamber 101, and a driving member for driving the piston block 140 to reciprocate inside the compression chamber 101. Among them, the inner ring of the compression chamber 101 has a circular structure to correspond to the shape of the piston block 140. And one end of the compression chamber 101 close to the piston block 140 penetrates through one side of the connection head 100 to facilitate the connection between the piston block 140 and the driving member.

[0055] The driving member can adopt an electric or manual method. However, considering the relatively high limitations of the electric driving method in outdoor places with scarce energy, in order to improve the usage scenarios of the present invention, the driving member of the present invention is preferably manually driven. Specifically, as shown in Figure 2 and Figure 3 In the figure. The driving member includes a pressure lever 142 rotatably connected to the end of the connection head 100 at one end, and a transmission rod 143 is rotatably connected between the pressure lever 142 and the piston block 140. By applying a pressing force or a pulling force to the pressure lever 142, the distance between the pressure lever 142 and the piston block 140 is changed, so as to drive the piston block 140 to perform corresponding movements through the transmission rod 143. Among them, the pressure lever 142 is rotatably connected to the connection head 100 through a rotating shaft 141, and the rotating shaft 141 is fixedly disposed in the recess at one end of the connection head 100.

[0056] Figure 3The specific structure of the filter 110 is shown. As shown in the figure, the filter 110 includes a hollow cylindrical housing and a RO membrane 111 installed inside the housing; one end of the housing communicates with the compression chamber 101, the other end communicates with a clear water pipe 112, and the bottom near one end of the clear water pipe 112 communicates with a return water pipe 113; among them, a third one-way valve 114 is provided at the connection between the housing and the compression chamber 101 for allowing the seawater in the compression chamber 101 to enter the housing; the clear water pipe 112 communicates with one end of the central pipe of the RO membrane 111.

[0057] As Figure 4 shown, the blocking mechanism 120 includes a slideway 121 with one end communicating with the air storage chamber 102 and the other end passing through the compression chamber 101 and then penetrating the side wall of the connecting head 100, and a blocking plate 122 elastically arranged in the slideway 121. A through hole 123 is provided on one side of the blocking plate 122. Under normal conditions, the through hole 123 is misaligned with the compression chamber 101. In addition, a water quantity sensing mechanism is provided at the connection between the slideway 121 and the air storage chamber 102; after seawater enters the air storage chamber 102, the compressed gas in the air storage chamber 102 drives the blocking plate 122 to move so that the through hole 123 communicates with the compression chamber 101. Among them, the blocking plate 122 is slidably connected to the slideway 121, and a return spring 124 elastically connecting the two is provided between one end of the blocking plate 122 and one side of the slideway 121.

[0058] Among them, the blocking plate 122 is located between the exhaust pipe 104 and the release mechanism 130.

[0059] Figure 4 and Figure 5 shows the specific structure of the water quantity sensing mechanism. First, as Figure 4 shown, the water quantity sensing mechanism includes a baffle 125 elastically arranged longitudinally at the connection between the air storage chamber 102 and the slideway 121, and a water receiving box 127 for collecting the seawater flowing out of the exhaust pipe 104. An opening is provided at the top of the water receiving box 127. Then, taking the state of the baffle 125 in Figure 5 as a reference, the bottom end of the baffle 125 is bent to the left to form a connection end for supporting the water receiving box 127. Among them, the volume of the baffle 125 is larger than the connection between the slideway 121 and the air storage chamber 102, and the side wall of the baffle 125 fits with the side wall of the air storage chamber 102 to seal the connection between the slideway 121 and the air storage chamber 102. At the same time, a longitudinal slide rail is provided on the side wall of the air storage chamber 102, and the baffle 125 slides longitudinally on the side wall of the air storage chamber 102 through the slide rail; a connection spring 126 elastically connecting the two is provided between the bottom of the connection end of the baffle 125 and the bottom of the air storage chamber 102. In this way, when the weight of the seawater in the water receiving box 127 overcomes the elasticity of the connection spring 126, the water receiving box 127 can drive the baffle 125 to slide down, opening the connection between the slideway 121 and the air storage chamber 102.

[0060] Moreover, Figure 6 As shown, in order to improve the efficiency of the seawater in the exhaust pipe 104 entering the water box 127, the present invention is provided with a guide pipe 128 at the end of the exhaust pipe 104, with one end facing the water box 127. In this way, the seawater in the exhaust pipe 104 can be guided by the guide pipe 128 during the discharge process and can all flow into the water box 127.

[0061] When the required clean water is obtained, the desalination device can be stopped. At this time, a large amount of compressed gas is stored in the gas storage chamber 102. By delivering the compressed gas to the filter 110, the seawater on the surface of the RO membrane 111 is blown, thereby reducing the residual seawater. Figure 7 The release mechanism 130 includes an air delivery channel 131 which is connected to the air storage chamber 102 at one end and to the compression chamber 101 at the other end, and a slide groove 132 which is arranged at the bottom and longitudinally penetrates the air delivery channel 131, wherein the air delivery channel 131 is located between the blocking mechanism 120 and the filter 110, and a valve stem 133 which has a diameter larger than that of the air delivery channel 131 is slidably arranged in the slide groove 132, and a mounting spring 134 is arranged at the bottom of the valve stem 133, and a force-bearing rod 135 which extends upward at the top and has a height higher than that of the top of the connector 100, and an inward recessed portion is arranged in the middle of the valve stem 133, and by applying a pressing force to the force-bearing rod 135, the recessed portion of the valve stem 133 is moved to the air delivery channel 131, so that the slide groove 132 is connected to the filter 110.

[0062] In the above, the air delivery channel 131 is disposed near the top of the air storage chamber 102 to prevent the seawater in the air storage chamber 102 from being delivered to the filter 110 .

[0063] When the seawater desalination device of the present invention is used, the water inlet pipe 103 is first put into the seawater, and then the pressure rod 142 is pressed and pulled to make the pressure rod 142 perform corresponding reciprocating motion. Since the position between the pressure rod 142 and the piston block 140 changes during the movement, the piston block 140 is driven by the transmission rod 143 to make the piston block 140 perform reciprocating motion in the compression chamber 101. Next, in combination with Figure 8 As shown, the blocking plate 122 intercepts the compression chamber 101 under normal conditions, so that the compression chamber 101 cannot communicate with the filter 110. When the piston block 140 moves upward, the internal space of the compression chamber 101 becomes larger, and negative pressure is generated inside the compression chamber 101, so that the compression chamber 101 sucks the air in the water inlet pipe 103 through the first one-way valve 105; when the piston block 140 moves downward, the piston block 140 compresses the space in the compression chamber 101, so that the gas entering the compression chamber 101 enters the air storage chamber 102 through the exhaust pipe 104.

[0064] With the continuous movement of the piston block 140, when the gas in the water inlet pipe 103 is exhausted, seawater will be sucked into the compression chamber 101, then enter the air storage cavity 102 through the exhaust pipe 104, and flow into the water holding box 127. At this time, the weight of the seawater in the water holding box 127 presses the connecting spring 126 to compress, so that the water holding box 127 drives the baffle 125 to move downward. After the baffle 125 moves downward, the communication between the slideway 121 and the air storage cavity 102 is opened. At this time, since there is compressed gas in the air storage cavity 102, the pressure in the air storage cavity 102 is higher than the pressure in the slideway 121, thus pushing the blocking partition 122, so that the blocking partition 122 drives the through hole 123 to move to the compression chamber 101. At this time, the compression chamber 101 is communicated with the filter 110 through the through hole 123. Then, referring to Figure 9 , when the piston block 140 moves downward again, the seawater in the compression chamber 101 flows into the RO membrane 111 through the filter 110. The seawater filtered by the RO membrane 111 flows into the central pipe, and then is discharged through the clear water pipe 112. The seawater intercepted by the RO membrane 111 is discharged through the end face of the RO membrane 111, and then is discharged to the outside through the return water pipe 113.

[0065] When the required clear water is obtained, the driving of the pressure rod 142 is stopped, and the force receiving rod 135 is pressed downward, so that the baffle 125 drives the concave part of the valve rod 133 to move downward to the air delivery channel 131. At this time, the compressed gas in the air storage cavity 102 flows into the compression chamber 101 through the air delivery channel 131, and then flows into the filter 110 through the compression chamber 101. When the high-pressure gas passes through the RO membrane 111, the water remaining on the surface of the RO membrane 111 is blown out, and finally is discharged through the return water pipe 113.

[0066] In addition, the present invention also provides a valve 150 on the side wall of the connector 100 that is communicated with the air storage cavity 102. After the use is completed, the seawater desalination device of the present invention is first rotated 180 degrees and then reset, so that the seawater in the water holding box 127 falls to the bottom of the air storage cavity 102, and then the valve 150 is opened to discharge the seawater in the air storage cavity 102.

[0067] It should be noted that the second one-way valve 106 is preferably a spring one-way valve, and the elastic force of the spring one-way valve is greater than the pressure of seawater entering the central pipe. This can prevent seawater from continuing to enter the exhaust pipe 104 through the second one-way valve 106 after the through hole 123 is communicated with the compression chamber 101.

[0068] Moreover, when the user uses it in shallow waters such as rivers, beaches and other areas, during the process of the water inlet pipe 103 touching the bottom, impurities at the bottom of the water are easily carried up, causing the impurities to float around the water inlet pipe 103, so that the water inlet pipe 103 sucks in seawater with impurities. However, in the present invention, the water receiving box 127 is provided to sense the seawater, so that the water initially sucked in by the water inlet pipe 103 will be discharged into the water receiving box 127, thereby reducing the impurities entering the RO membrane 111 and increasing the service life of the RO membrane 111.

[0069] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A portable seawater desalination device, characterized in that: The invention comprises a connector (100), a filter (110) and a pressure regulating component, wherein a compression chamber (101) is arranged inside the connector (100), an air storage chamber (102) which is in one-way communication with the compression chamber (101) is arranged on one side, and a water inlet pipe (103) which is in one-way communication with the compression chamber (101) is arranged on the other side; the pressure regulating component is used to change the internal pressure of the compression chamber (101), and the filter (110) is arranged on one side of the connector (100) and is in communication with the compression chamber (101); A blocking mechanism (120) connected to the air storage chamber (102) is provided at the connection point between the compression chamber (101) and the filter (110). The blocking mechanism (120) is used to adjust the connection state between the compression chamber (101) and the filter (110), so that before the seawater enters the compression chamber (101), the air in the water inlet pipe (103) is compressed into the air storage chamber (102) through the pressure regulating component; after the seawater enters the compression chamber (101) through the water inlet pipe (103), the seawater is transported to the filter (110); A release mechanism (130) is provided between the gas storage chamber (102) and the filter (110); after filtering stops, the release mechanism (130) is opened to allow the compressed gas stored in the gas storage chamber (102) to enter the filter (110), thereby blowing out the seawater in the filter (110); A first one-way valve (105) is provided at the connection point between the water inlet pipe (103) and the compression chamber (101); the air storage chamber (102) and the compression chamber (101) are connected via an exhaust pipe (104); a second one-way valve (106) is provided inside the exhaust pipe (104); When negative pressure is generated in the compression chamber (101), the compression chamber (101) draws air and seawater in the water inlet pipe (103) into the compression chamber (101) through the first one-way valve (105); when positive pressure is generated in the compression chamber (101), the air and seawater in the compression chamber (101) can enter the air storage chamber (102) through the second one-way valve (106); The blocking mechanism (120) comprises a slideway (121) having one end in communication with the air storage chamber (102) and the other end passing through the compression chamber (101) and then penetrating the side wall of the connector (100), and a blocking plate (122) elastically arranged in the slideway (121); a through hole (123) penetrating therethrough is arranged on one side of the blocking plate (122); and in a normal state, the through hole (123) is misaligned with the compression chamber (101); A water volume sensing mechanism is provided at the connection point between the slideway (121) and the air storage chamber (102); after seawater enters the air storage chamber (102), the compressed gas in the air storage chamber (102) drives the baffle plate (122) to move, so that the through hole (123) is connected to the compression chamber (101); The blocking plate (122) is slidably connected to the slideway (121), and a return spring (124) is provided between one end of the blocking plate (122) and one side of the slideway (121) to elastically connect the two. The baffle plate (122) is located between the exhaust pipe (104) and the release mechanism (130); The water volume sensing mechanism comprises a baffle (125) elastically arranged in a longitudinal manner at the connection between the air storage chamber (102) and the slideway (121), and a water storage box (127) for collecting seawater flowing out of the exhaust pipe (104); an opening is arranged at the top of the water storage box (127), and the bottom end of the baffle (125) is bent to one side to form a connection end for supporting the water storage box (127); wherein: The volume of the baffle (125) is larger than the connection point between the slideway (121) and the air storage chamber (102), and the side wall of the baffle (125) fits the side wall of the air storage chamber (102) to seal the connection point between the slideway (121) and the air storage chamber (102); A connecting spring (126) is provided between the bottom of the connecting end of the baffle (125) and the bottom of the gas storage chamber (102) to elastically connect the two. When the weight of the seawater in the water box (127) overcomes the elasticity of the connecting spring (126), the water box (127) drives the baffle (125) to slide down, so that the connection between the slideway (121) and the air storage chamber (102) is opened; The release mechanism (130) comprises an air delivery channel (131) whose one end is in communication with the air storage chamber (102) and whose other end is in communication with the compression chamber (101), and a slide groove (132) disposed at the bottom end and longitudinally penetrating the air delivery channel (131), wherein: The air delivery channel (131) is located between the blocking mechanism (120) and the filter (110); A valve stem (133) having a diameter greater than that of the gas delivery channel (131) is slidably disposed in the slide groove (132); a mounting spring (134) is disposed at the bottom of the valve stem (133); a force-bearing rod (135) is extended upward at the top thereof to be higher than the top of the connector (100); and an inwardly-pointing recessed portion is disposed in the middle of the valve stem (133); by applying a pressing force to the force-bearing rod (135), the recessed portion of the valve stem (133) is moved to the gas delivery channel (131), thereby connecting the slide groove (132) with the filter (110).

2. The portable seawater desalination device according to claim 1, characterized in that: The pressure regulating component comprises a piston block (140) slidably arranged inside the compression chamber (101), and a driving member used for driving the piston block (140) to perform reciprocating motion inside the compression chamber (101); wherein: The inner circle of the compression chamber (101) is in a circular structure, corresponding to the shape of the piston block (140); one end of the compression chamber (101) close to the piston block (140) passes through one side of the connecting head (100).

3. The portable seawater desalination device according to claim 2, characterized in that: The driving member comprises a pressure rod (142) having one end rotatably connected to the end of the connector (100); a transmission rod (143) rotatably connected between the pressure rod (142) and the piston block (140); by applying a pressing force or a pulling force to the pressure rod (142), the distance between the pressure rod (142) and the piston block (140) is changed, thereby driving the piston block (140) to perform corresponding movement through the transmission rod (143).

4. The portable seawater desalination device according to claim 1, characterized in that: The filter (110) comprises a cylindrical shell with a hollow interior, and an RO membrane (111) installed inside the shell; one end of the shell is connected to the compression chamber (101), the other end is connected to a clean water pipe (112), and the bottom end close to the clean water pipe (112) is connected to a return water pipe (113); wherein: A third one-way valve (114) is provided at the connection point between the shell and the compression chamber (101), for allowing the seawater in the compression chamber (101) to enter the shell; The clean water pipe (112) is connected to one end of the central pipe of the RO membrane (111).

5. The portable seawater desalination device according to claim 1, characterized in that: The end of the exhaust pipe (104) is provided with a guide pipe (128) with one end facing the inside of the water storage box (127).

6. The portable seawater desalination device according to claim 1, characterized in that: A valve (150) communicating with the air storage chamber (102) is provided on the side wall of the connector (100).

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