Buoyancy-Type Truncated Water Purification Device and Its Application

Abstract

The present invention provides a buoyancy-type cut-off water purification device and its application, which relates to the technical field of water filtration equipment. Water flows into the water filtration unit from the inlet control valve of the inlet unit for filtration, and the purified water after filtration flows from the water filtration unit to the water storage unit. Since the inlet water tank is connected to the water inlet of the water storage unit, the water volume stored in the water storage unit can be judged by the water volume in the inlet water tank. When the water level in the water storage unit exceeds the water storage warning line, the inlet water tank starts to fill with water, and the buoyancy member floats up and pushes the sliding member away from the valve core through the action of the pushing part, so that the valve core is disengaged from the fixation of the sliding member, and the valve core rebounds to close the water inlet waterway of the inlet control valve, and the water inlet source of the water filtration unit is cut off. The device has a simple structure and realizes automatic control of whether the water filtration unit filters water without power consumption relying on the principle that the water levels of the connected waterways are the same. It has high water filtration reliability, low risk of machine failure, and a wide range of applications.

Description

Technical Field

[0001] The invention relates to the technical field of water filtering equipment, and in particular to a buoyancy-type cutoff water purification device and application thereof. Background Art

[0002] A water purifier is a device that filters and purifies water. As people's requirements for quality of life become higher and higher, small purifiers suitable for home use are becoming more and more popular. Current water purification devices include water purification buckets that do not require electricity or plug-in machine-type water purifiers. Water purification buckets that do not require electricity generally use the filter element inside the bucket to filter water, but this filtering method can only remove large impurities in the water and it is difficult to make deeper adjustments to the water quality.

[0003] In order to obtain better quality purified water, it is usually necessary to use a plug-in machine-type water purifier, which controls the water intake and water shut-off through an electrically driven power device such as a pump. Sometimes, due to problems with electricity or water pressure, the water intake and water shut-off cannot be reliably controlled, making the water purifier unusable. At the same time, during the power-on operation, the water purifier makes a lot of working noise. Therefore, there is an urgent need to provide a machine-type water purifier that can achieve the water purification function without power supply.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] The object of the present invention is to provide a buoyancy-type cut-off water purification device and its application, which can automatically control the water filtering process, does not need to be plugged in, has a simple structure and high reliability.

[0006] The embodiment of the present invention is achieved as follows:

[0007] In a first aspect, the present invention provides a buoyancy-type cutoff water purification device, comprising a water inlet unit, a water filtering unit and a water storage unit connected in sequence.

[0008] The water inlet unit includes a water inlet tank, a water inlet control valve and a control valve on-off assembly; the water inlet of the water inlet control valve is used to connect to the tap water pipe, and the water outlet of the water inlet control valve is connected to the water inlet of the water filter unit. Therefore, when water flows from the water inlet unit to the water filter unit, it will not pass through the water inlet tank, but directly flow to the water filter unit through the water inlet waterway of the water inlet control valve.

[0009] The water inlet tank includes a first water inlet and a water inlet control valve connection port. The axes of the first water inlet and the water inlet control valve connection port intersect, and preferably, the axes of the first water inlet and the water inlet control valve connection port are perpendicular. The first water inlet is located below the water inlet control valve connection port, the first water inlet is connected to the water inlet of the water storage unit, and the first water inlet and the water storage warning line of the water storage unit are located in the same plane.

[0010] Since the function of the first water inlet is to form a connected passage with the water storage unit, a communicating vessel is formed among the water inlet water tank, the water storage unit, and the pipeline connecting the two. The water level of the purified water obtained by filtering through the water filtering unit in the water storage unit can be determined by whether there is water in the water inlet water tank and the height of the water level after water enters. To facilitate adjusting the water filtering progress of the water filtering unit, a water storage warning line can be preset in the water storage unit. When the water level reaches the water storage warning line, it is necessary to prepare to cut off the water inlet of the water filtering unit to avoid the situation where the water stored in the water storage unit overflows due to excessive water volume.

[0011] The water inlet control valve includes a valve core extending from the water inlet control valve connection port into the water inlet water tank and a valve body located outside the water inlet water tank. The control valve on-off assembly is accommodated in the water inlet water tank and is connected to the valve core. Therefore, the valve core extends into the water inlet water tank from the water inlet control valve connection port of the water inlet water tank.

[0012] The control valve on-off assembly includes an elastic member, a sliding member, and a buoyancy member; one end of the sliding member is connected to the valve core, and the valve core can be selectively fixed through a fixing member provided on the sliding member. An elastic member is fixed to the opposite end of the sliding member, and the end of the elastic member away from the sliding member is connected to the inner wall surface of the water inlet water tank.

[0013] The buoyancy member is accommodated on one side of the water inlet water tank close to the first water inlet, and a pushing portion for selectively contacting the sliding member is provided on the side of the buoyancy member close to the sliding member, for pushing the sliding member in a direction away from the valve core.

[0014] In some embodiments of the present invention, water flows from the water inlet control valve of the water inlet unit into the water filtering unit for filtration, and the filtered purified water flows from the water filtering unit to the water storage unit. Since the water inlet water tank is connected to the water inlet of the water storage unit, the water volume stored in the water storage unit can be judged by the water volume in the water inlet water tank. By setting the first water inlet of the water inlet water tank and the water storage warning line of the water storage unit in the same plane, when water starts to enter the water inlet water tank, it indicates that the water volume in the water storage unit has reached the water storage warning line. The buoyancy member in the water inlet water tank will float up after water enters the water inlet water tank, so as to contact the sliding member, and push the sliding member in a direction away from the valve core through the action of the pushing portion, so that the valve core is disengaged from the fixation of the sliding member, and the valve core rebounds to close the water inlet waterway of the water inlet control valve, and the water inlet source of the water filtering unit is cut off. When the water in the water storage unit is used and drops below the water storage warning line, the water level in the water inlet water tank drops synchronously, and the buoyancy member drops synchronously. After the sliding member is disengaged from the driving force of the buoyancy member, due to the resilience of the elastic member, it moves in a direction close to the valve core until the fixing member fixes the valve core on the sliding member again. At this time, the water inlet waterway of the water inlet control valve is opened, and water enters the water filtering unit through the water inlet control valve for filtration again. In this way, the automatic water purification of the device is realized, and the situation where the purified water cannot be consumed for a long time and overflows is avoided.

[0015] Since the device of the present invention can achieve automatic control of the water filtration process without electricity, it can be understood that the water inlet path of the water inlet control valve of the present invention should be a long-term through path, and the water inlet path will only be disconnected when it is necessary to stop water filtration.

[0016] In an alternative embodiment, the water inlet tank can be a closed box or an open box, and preferably a closed box.

[0017] In an alternative embodiment, the closed water inlet tank can be an integrally formed sealed structure or a split structure composed of a box body and a cover body.

[0018] In an alternative embodiment, in order to more conveniently control the opening and closing of the water inlet control valve, the top of the water inlet tank is on the same plane as the top of the water storage unit, which is convenient for forming a connecting pipe, and the water storage unit has a purified water inlet buffer zone with the same height as the water inlet tank, which will not cause the purified water to overflow the water storage unit.

[0019] In an alternative embodiment, the sliding member is provided with a valve core installation channel, the valve core of the water inlet control valve is accommodated in the valve core installation channel, and a fixing member provided in the valve core installation channel selectively fixes the valve core.

[0020] In an alternative embodiment, the water inlet control valve is a solenoid valve, and the fixing member provided in the valve core installation channel is a magnetic member. The valve core is attracted by the magnetic member provided in the valve core installation channel, so that the water inlet path in the water inlet control valve is through. When the sliding member moves in a direction away from the valve core, the suction force of the magnetic member on the valve core fails, thereby cutting off the water inlet path in the water inlet control valve.

[0021] In an alternative embodiment, the valve core of the solenoid valve includes a valve core housing, a valve core body and a valve core elastic member accommodated in the valve core housing, and the valve core elastic member is fixed on the side of the valve core body away from the valve body.

[0022] The valve core body can control the on-off of the water inlet path in the water inlet control valve. Therefore, when the water inlet path is through, the valve core body is fixed in the sliding member by the fixing member. When the sliding member moves in a direction away from the water inlet control valve, the valve core body is disengaged from the fixing of the fixing member, the valve core body moves in the direction of the water inlet path, and blocks the water inlet path, achieving the effect of cutting off the water inlet path. When the sliding member moves in a direction close to the water inlet control valve, the valve core body moves in the direction of the elastic member under the action of the fixing member, and opens the water inlet path to start water inlet.

[0023] In an alternative embodiment, the elastic member is parallel or coincident with the axis of the valve core; preferably, the elastic member is coincident with the axis of the valve core, that is, the elastic member is coaxially arranged with the valve core.

[0024] In an alternative embodiment, to facilitate the pushing of the sliding member, the pushing portion is a slope inclined towards the first water inlet, and the top of the slope is located on the side close to the sliding member.

[0025] In an alternative embodiment, a pushing portion receiving channel cooperating with the pushing portion is further formed on the sliding member, and the pushing portion can be selectively received in the pushing portion receiving channel.

[0026] In an alternative embodiment, there are two pushing portions, and there are also two pushing portion receiving channels. In other embodiments, the structure of the pushing portion can also be adjusted as needed, as long as the sliding member can be pushed.

[0027] In an alternative embodiment, the first water inlet is located at the bottom of the water inlet tank, and the water inlet control valve connection port is located at the upper part of the side wall of the water inlet tank.

[0028] In an alternative embodiment, the water filtering unit is a filter, and the water storage unit is a water storage tank.

[0029] Preferably, any filter on the market can be used for the filter, and the shape and size of the water storage tank can also be set conventionally according to specific needs.

[0030] In a second aspect, the present invention provides an application of the buoyancy type cut-off water purification device according to any one of the foregoing embodiments in the field of water purification or water filtration.

[0031] The beneficial effects of the embodiments of the present invention are:

[0032] The present invention provides a buoyancy - type cut - off water purification device and its application. Water flows from the inlet control valve of the inlet unit into the water filtration unit for filtration. The purified water after filtration flows from the water filtration unit to the water storage unit. Since the inlet water tank is connected to the water inlet of the water storage unit, the amount of water stored in the water storage unit can be judged by the amount of water in the inlet water tank. By setting the first water inlet of the inlet water tank and the water storage warning line of the water storage unit in the same plane, when water starts to enter the inlet water tank, it indicates that the amount of water in the water storage unit has reached the water storage warning line. The buoyancy member in the inlet water tank will float up after the inlet water tank starts to fill with water, and thus come into contact with the sliding member. Through the action of the pushing part, the sliding member is pushed away from the valve core, so that the valve core is disengaged from the fixation of the sliding member, and the valve core rebounds to close the water inlet path of the inlet control valve, and the water inlet source of the water filtration unit is cut off. When the water in the water storage unit is used and drops below the water storage warning line, the water level in the inlet water tank drops synchronously, and the buoyancy member drops synchronously. After the sliding member is disengaged from the driving force of the buoyancy member, due to the resilience of the elastic member, it moves towards the valve core until the fixing member fixes the valve core on the sliding member again. At this time, the water inlet path of the inlet control valve is opened, and water enters the water filtration unit through the inlet control valve again for filtration. This device has a simple structure and realizes the automatic control of whether the water filtration unit filters water without power consumption relying on the principle that the water levels of the connected water paths are the same. It has high water filtration reliability and low risk of machine failure, and can be applied to a variety of water filtration machines, with a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0034] Figure 1 FIG. 9 is a schematic structural diagram of the buoyancy - type cut - off water purification device provided by the first embodiment of the present invention;

[0035] Figure 2 FIG. 13 is an internal structural diagram of the inlet unit provided by the first embodiment of the present invention;

[0036] Figure 3 FIG. 17 is a cross - sectional view of the water filtration process of the buoyancy - type cut - off water purification device provided by the first embodiment of the present invention;

[0037] Figure 4 FIG. 21 is a cross - sectional view of the water filtration process of the inlet unit provided by the first embodiment of the present invention;

[0038] Figure 5 FIG. 25 is a cross - sectional view of the process of stopping water filtration of the buoyancy - type cut - off water purification device provided by the first embodiment of the present invention;

[0039] Figure 6 Cross-sectional view of the water inlet unit provided in the first embodiment of the present invention during the process of stopping water filtration;

[0040] Figure 7 Top structural schematic diagram of the water inlet unit provided in the first embodiment of the present invention during the processes of water filtration and stopping water filtration.

[0041] Icons: 100 - buoyancy - type cut - off water purification device; 110 - water inlet unit; 111 - water inlet tank; 1111 - first water inlet; 1112 - cover body; 1113 - box body; 112 - water inlet control valve; 1121 - valve body; 1122 - valve core housing; 1123 - valve core body; 1124 - valve core elastic member; 1125 - water inlet waterway; 1131 - elastic member; 1132 - sliding member; 1133 - buoyancy member; 1134 - fixing member; 1135 - pushing portion; 120 - water filtration unit; 130 - water storage unit; 131 - water storage warning line; 132 - actual water level line. Specific embodiments

[0042] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0043] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0044] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0045] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the inventive product is customarily placed during use. It is 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 therefore should not be construed as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0046] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0047] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] First Embodiment

[0049] Please refer to Figure 1 , this embodiment provides a buoyancy-type truncated water purification device 100, which includes a sequentially connected water inlet unit 110, a water filtration unit 120, and a water storage unit 130.

[0050] Among them, the water filtration unit 120 is an RO filter, and the water storage unit 130 is a water storage tank.

[0051] Please refer to Figure 2 , the water inlet unit 110 includes a water inlet tank 111, a water inlet control valve 112, and a control valve on-off assembly.

[0052] Among them, the water inlet control valve 112 has a water inlet and a water outlet. The water inlet of the water inlet control valve 112 is used to connect to the tap water pipe, and the water outlet of the water inlet control valve 112 is connected to the water inlet of the water filtration unit 120. Therefore, when water flows from the water inlet unit 110 to the water filtration unit 120, it does not pass through the water inlet water tank 111 and directly flows through the water inlet water path 1125 of the water inlet control valve 112 to the water filtration unit 120. The water outlet of the water filtration unit 120 is connected to the water inlet of the water storage unit 130. Therefore, the filtered water can be transported to the water storage unit 130 for storage.

[0053] In this embodiment, the water inlet water tank 111 is of a closed structure, specifically a split structure composed of a box body 1113 and a cover body 1112.

[0054] The water inlet water tank 111 includes a first water inlet 1111 and a connection port for the water inlet control valve 112. In this embodiment, the first water inlet 1111 is located at the bottom of the water inlet water tank 111, and the connection port for the water inlet control valve 112 is located at the upper part of the side wall surface of the water inlet water tank 111. The axes of the first water inlet 1111 and the connection port for the water inlet control valve 112 are perpendicular.

[0055] Please refer to Figure 3 , the first water inlet 1111 is connected to the water inlet of the water storage unit 130. Therefore, a communicating vessel is formed among the water inlet water tank 111, the water storage unit 130, and the pipeline connecting the two. The water level of the purified water obtained by filtering in the water storage unit 130 by the water filtration unit 120 can be determined by whether there is water in the water inlet water tank 111 and the height of the water level after water appears.

[0056] The first water inlet 1111 and the water storage warning line 131 of the water storage unit 130 are located in the same plane. In order to facilitate adjusting the water filtration progress of the water filtration unit 120, a water storage warning line 131 can be set in advance in the water storage unit 130. When the water level reaches the water storage warning line 131, it is necessary to prepare to cut off the water inlet of the water filtration unit 120 to avoid the situation that the water stored in the water storage unit 130 overflows due to too much water.

[0057] In this embodiment, in order to more conveniently control the opening and closing of the water inlet control valve 112, the top of the water inlet water tank 111 and the top of the water storage unit 130 are located in the same plane, which is convenient for forming a connecting pipe, and the water storage unit 130 has a purified water inlet buffer area with the same height as the water inlet water tank 111, and it will not cause the purified water to overflow from the water storage unit 130.

[0058] Please refer to Figure 2, the water inlet control valve 112 includes a valve core extending from the connection port of the water inlet control valve 112 into the water inlet tank 111 and a valve body 1121 located outside the water inlet tank 111. The control valve on-off assembly is accommodated in the water inlet tank 111 and is connected to the valve core. Therefore, the valve core extends into the water inlet tank 111 from the connection port of the water inlet control valve 112 of the water inlet tank 111.

[0059] Please refer to Figure 4 and Figure 6 , in this embodiment, the water inlet control valve 112 is a solenoid valve. The valve core of the solenoid valve includes a valve core housing 1122, a valve core body 1123 and a valve core elastic member 1124 accommodated in the valve core housing 1122. The valve core elastic member 1124 is fixed on the side of the valve core body 1123 away from the valve body 1121.

[0060] Please refer to Figure 2 , the control valve on-off assembly includes an elastic member 1131, a sliding member 1132 and a buoyancy member 1133.

[0061] Please refer to Figure 7 , the sliding member 1132 is provided with a valve core installation channel. The valve core of the water inlet control valve 112 is accommodated in the valve core installation channel, and a fixing member 1134 provided in the valve core installation channel selectively fixes the valve core.

[0062] Since the water inlet control valve 112 in this embodiment is a solenoid valve, the fixing member 1134 provided in the valve core installation channel is a magnetic member. The valve core is attracted by the magnetic member provided in the valve core installation channel, so that the water inlet waterway 1125 in the water inlet control valve 112 is unblocked. When the sliding member 1132 moves away from the valve core, the suction force of the magnetic member on the valve core fails, thereby cutting off the water inlet waterway 1125 in the water inlet control valve 112.

[0063] Specifically, when the water inlet waterway 1125 is unblocked, the valve core body 1123 is fixed in the sliding member 1132 by the fixing member 1134. When the sliding member 1132 moves away from the water inlet control valve 112, the valve core body 1123 is released from the fixation of the fixing member 1134, and the valve core body 1123 moves towards the water inlet waterway 1125 and blocks the water inlet waterway 1125, achieving the effect of cutting off the water inlet waterway 1125. When the sliding member 1132 moves towards the water inlet control valve 112, the valve core body 1123 moves towards the elastic member 1131 under the action of the fixing member 1134 and opens the water inlet waterway 1125 to start water inlet.

[0064] One end of the sliding member 1132 is connected to the valve core, and the valve core can be selectively fixed through the fixing member 1134 provided on the sliding member 1132. An elastic member 1131 is fixed to the opposite end of the sliding member 1132. One end of the elastic member 1131 away from the sliding member 1132 is connected to the inner wall surface of the water inlet tank 111.

[0065] In this embodiment, the elastic member 1131 coincides with the axis of the valve core, that is, the elastic member 1131 and the valve core are coaxially arranged.

[0066] Furthermore, the buoyancy member 1133 is accommodated on the side of the water inlet tank 111 close to the first water inlet 1111, and a pushing portion 1135 for selectively contacting the sliding member 1132 is provided on the side of the buoyancy member 1133 close to the sliding member 1132, for pushing the sliding member 1132 to move in a direction away from the valve core.

[0067] In this embodiment, in order to facilitate the pushing of the sliding member 1132, the pushing portion 1135 is a slope inclined towards the first water inlet 1111, and the top of the slope is located on the side close to the sliding member 1132.

[0068] In this embodiment, a pushing portion 1135 accommodation channel for cooperating with the pushing portion 1135 is further formed on the sliding member 1132, and the pushing portion 1135 can be selectively accommodated in the pushing portion 1135 accommodation channel. And there are two pushing portions 1135, and there are also two pushing portion 1135 accommodation channels.

[0069] Since the device of the present invention can realize the automatic control of the water filtration process without electricity, it can be understood that the water inlet channel 1125 of the water inlet control valve 112 of the present invention should be a long-term through channel, and the water inlet channel 1125 will only be disconnected when it is necessary to stop water filtration.

[0070] This embodiment provides a buoyancy type cut-off water purification device 100, and its working principle is as follows:

[0071] Water filtration process: Please refer to Figure 1 、 Figure 3 and Figure 7 , the valve core is accommodated in the valve core installation channel of the sliding member 1132, the valve core body 1123 is magnetically attracted and matched with the magnetic member on the valve core installation channel, the water inlet channel 1125 of the water inlet control valve 112 is through, and water flows along the water inlet channel 1125 of the water inlet control valve 112 into the water filtration unit 120 through the pipeline for filtration, and the filtered purified water flows from the water filtration unit 120 to the water storage unit 130.

[0072] Judgment process and working principle for stopping water filtration: Please refer to Figure 1 、 Figure 5 and Figure 7, as the purified water continuously flows into the water storage unit 130, the water level in the water storage unit 130 keeps rising. Since the water inlet tank 111 is connected to the water inlet of the water storage unit 130, the amount of water stored in the water storage unit 130 can be judged by the amount of water in the water inlet tank 111. By setting the first water inlet 1111 of the water inlet tank 111 and the water storage warning line 131 of the water storage unit 130 on the same plane, when water starts to enter the water inlet tank 111, it indicates that the amount of water in the water storage unit 130 has reached the water storage warning line 131. The buoyancy member 1133 in the water inlet tank 111 will float up after the water inlet tank 111 is filled with water, and thus come into contact with the sliding member 1132. Through the action of the pushing portion 1135, the sliding member 1132 is pushed away from the water inlet control valve 112, so that the valve core body 1123 is disengaged from the fixation of the fixing member 1134. At this time, the actual water level line 132 in the water storage unit 130 exceeds the water storage warning line 131. Since the valve core body 1123 is disengaged from the fixation of the fixing member 1134, the valve core elastic member 1124 has a resilience force that promotes the valve core body 1123 to move towards the valve body 1121 of the water inlet control valve 112. The valve core body 1123 rebounds to close the water inlet channel 1125 of the water inlet control valve 112, and the water inlet source of the water filtration unit 120 is cut off. When the water existing in the water filtration unit 120 is completely filtered and flows into the water storage unit 130, the water filtration unit 120 stops filtering water.

[0073] The judgment process and working principle for resuming water filtration: When the purified water in the water storage unit 130 is used, the water level in the water storage unit 130 will drop, and similarly, the water level in the water inlet tank 111 will also drop. Therefore, the buoyancy member 1133 drops synchronously. During the process of the buoyancy member 1133 dropping, the thrust of the buoyancy member 1133 on the sliding member 1132 decreases. The sliding member 1132 is affected by the elastic member 1131 and has a tendency to move towards the water inlet control valve 112. When the buoyancy member 1133 is completely out of contact with the sliding member 1132, the sliding member 1132 returns to the side close to the water inlet control valve 112 under the influence of the elastic force of the elastic member 1131. Since the sliding member 1132 returns to its original position, the magnetic member on the valve core installation channel generates a suction force on the valve core body 1123 again, sucking the valve core body 1123 back into the corresponding valve core housing 1122 in the valve core installation channel. At this time, the water inlet channel 1125 of the water inlet control valve 112 is opened, and water enters the water filtration unit 120 again through the water inlet control valve 112 for filtration. In this way, the automatic water purification of the device is realized, avoiding the situation that the purified water cannot be consumed for a long time and overflows due to long-term water filtration.

[0074] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, various changes and modifications can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A buoyancy - type truncated water purification device, characterized in that, It includes a water inlet unit, a water filtration unit, and a water storage unit that are connected in sequence; The water inlet unit includes a water inlet tank, a water inlet control valve, and a control valve on-off component; the water inlet of the water inlet control valve is used to connect to the tap water pipe, and the water outlet of the water inlet control valve is connected to the water inlet of the water filtration unit; The water inlet tank includes a first water inlet and a water inlet control valve connection port. The axes of the first water inlet and the water inlet control valve connection port intersect, and the first water inlet is located below the water inlet control valve connection port. The first water inlet is connected to the water inlet of the water storage unit, and the first water inlet and the water storage warning line of the water storage unit are in the same plane; The water inlet control valve includes a valve core extending from the water inlet control valve connection port into the water inlet tank and a valve body located outside the water inlet tank. The control valve on-off component is accommodated in the water inlet tank and is connected to the valve core; The control valve on-off component includes an elastic member, a sliding member, and a buoyancy member; one end of the sliding member is connected to the valve core, and the valve core is fixed by a fixing member provided on the sliding member. The opposite end of the sliding member is fixed with the elastic member, and the end of the elastic member away from the sliding member is connected to the inner wall surface of the water inlet tank; The buoyancy member is accommodated on one side of the water inlet tank close to the first water inlet, and a pushing portion for contacting the sliding member is provided on the side of the buoyancy member close to the sliding member, for pushing the sliding member to move in a direction away from the valve core; The sliding member is provided with a valve core installation channel. The valve core of the water inlet control valve is accommodated in the valve core installation channel, and the fixing member provided in the valve core installation channel fixes the valve core; The water inlet control valve is a solenoid valve, and the fixing member provided in the valve core installation channel is a magnetic member; The valve core of the solenoid valve includes a valve core housing, a valve core body accommodated in the valve core housing, and a valve core elastic member. The valve core elastic member is fixed on the side of the valve core body away from the valve body; The pushing portion is a slope inclined towards the first water inlet direction, and the top of the slope is located on the side close to the sliding member; A pushing portion accommodation channel cooperating with the pushing portion is further opened on the sliding member, and the pushing portion is accommodated in the pushing portion accommodation channel.

2. The buoyancy type cut-off water purification device according to claim 1, characterized in that The elastic member is parallel or coincident with the axis of the valve core.

3. The buoyancy type cut-off water purification device according to claim 1, characterized in that, The first water inlet is located at the bottom of the water inlet tank, and the water inlet control valve connection port is located at the upper part of the side wall of the water inlet tank.

4. The buoyancy type cut-off water purification device according to claim 1, characterized in that, The water filtration unit is a filter, and the water storage unit is a water storage tank.

5. Application of the buoyancy type cut-off water purification device according to any one of claims 1 to 4 in the field of water purification or water filtration.

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