Multifunctional water inlet valve

Abstract

This utility model relates to a multi-functional water inlet valve, comprising: a valve body having an inlet pipe and several outlet pipes, an inlet valve chamber connected to the inlet pipe, several outlet valve chambers respectively connected to the several outlet pipes, and several control valve ports respectively connecting the several outlet valve chambers to the inlet valve chamber; and several sets of on / off control components for controlling the on / off of the several control valve ports. This utility model features multiple outlet pipes simultaneously connected to the inlet pipe on a single inlet valve, and uses several sets of on / off control components to control the on / off of each outlet pipe, satisfying complex multi-water circuit control, reducing the need for inter-component coordination, significantly reducing the risk of leakage and improving product safety; reducing accessories also greatly increases installation convenience and reduces costs, and the overall size of the product using this valve is correspondingly smaller, conforming to the current trend of limited space in cabinets / washing machines.

Description

Technical Field

[0001] This utility model relates to a multifunctional water inlet valve. Background Technology

[0002] Currently, with the development of water purification system technology, there are more and more functional requirements in the design, and water purification pipelines usually involve the need for inlet and outlet control of multiple water channels. For example, patent CN202221288143.3 discloses a multi-channel water appliance, comprising: a water inlet; a water purification solenoid valve connected to the water inlet, through which pressurized water is output from the water purification outlet; a cooled boiled water solenoid valve connected to the water inlet; and a hot water solenoid valve connected to the water inlet; the cooled boiled water solenoid valve is connected to a heat exchanger, through which pressurized water enters a water tank, then through the water tank to an instant heater to exchange heat in the heat exchanger and output cooled boiled water; the hot water solenoid valve is connected to the water tank, through which pressurized water is output to the instant heater, then through the heat exchanger without heat exchange and outputs hot water. Through the separately configured water purification solenoid valve, cooled boiled water solenoid valve, and hot water solenoid valve, a total of purified water channel, cooled boiled water channel, and hot water channel with different temperatures are formed, which can meet the needs of different people and integrate multiple water channels into the same water appliance. The aforementioned existing technology involves multiple modules, and the connection between the inlet and outlet of each module often requires the use of adapters, pipes, etc. Too many connection points have certain drawbacks, which complicate the assembly process of the water purifier, reduce assembly efficiency, increase the risk of water leakage at the connection points, and increase the length of pipe connections, resulting in increased manufacturing costs. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and to provide a multifunctional water inlet valve.

[0004] The technical solution adopted by this utility model is as follows: A multifunctional water inlet valve, comprising: The valve body has an inlet pipe and several outlet pipes. Inside, there is an inlet valve chamber connected to the inlet pipe, several outlet valve chambers connected to the several outlet pipes, and several control valve ports that connect the several outlet valve chambers to the inlet valve chamber. Several sets of on / off control components are respectively matched with several control valve ports to control the on / off state of the several control valve ports.

[0005] Several sets of on / off control components include at least two sets of solenoid valve control components, one set of solenoid valve control components includes an electromagnetic coil, a coil frame and a driving iron core located in the coil frame; The valve body is provided with an electromagnetic control annular valve seat corresponding to the electromagnetic valve control component. The end of the electromagnetic control annular valve seat forms a control valve port that cooperates with the electromagnetic valve control component. The inner cavity of the electromagnetic control annular valve seat forms a water outlet valve cavity. The outer cavity of the electromagnetic control annular valve seat is connected through a first flow passage.

[0006] All control valve ports that cooperate with the solenoid valve control assembly are arranged parallel to the central axis direction. The valve body has a number of corresponding first mating openings on the same side and is connected to a fixed bracket. The fixed bracket is fastened to the side of the valve body by screws. At least two sets of solenoid valve control assemblies are fixed on the fixed bracket.

[0007] The fixed bracket is provided with a positioning protrusion that is inserted into the coil frame; The valve body has several connecting holes evenly distributed around the outer periphery of the first mating opening. The fixing bracket is fastened to the side of the valve body by screws threaded into the connecting holes.

[0008] The electromagnetically controlled annular valve seats are located on the same straight line, and the flow passages connecting the outer cavities of adjacent electromagnetically controlled annular valve seats are also located on the same straight line.

[0009] The plurality of on / off control components include at least one set of negative pressure valve control components. The valve body is provided with a negative pressure control annular valve seat corresponding to the negative pressure valve control component. One end of the negative pressure control annular valve seat forms a control valve port that cooperates with the negative pressure valve control component. One end of the negative pressure control annular valve seat with the control valve port is fitted with an upper valve cover and the other end is fitted with a lower valve cover. The negative pressure control annular valve seat and the upper valve cover form an upper valve chamber that communicates with the water inlet pipe. The negative pressure control annular valve seat and the lower valve cover form a lower valve chamber that communicates with the corresponding water outlet pipe. A set of negative pressure valve control components includes a negative pressure valve plug located in the upper valve chamber, an elastic actuating element disposed between the negative pressure valve plug and the upper valve cover, and a pneumatic diaphragm and a movable element located in the lower valve chamber. The pneumatic diaphragm divides the lower valve chamber into a medium chamber and an atmospheric chamber. The medium chamber is connected to the corresponding control valve port and the water outlet pipe, and the atmospheric chamber is connected to the outside air. The two ends of the movable element are respectively engaged with the pneumatic diaphragm and the negative pressure valve plug.

[0010] An elastic retaining ring is provided between the upper valve cover and the valve body, and several clamping springs are provided on the outer periphery of the elastic retaining ring.

[0011] The inner surface of the lower valve cover is provided with a vent keyway and a step is formed at the edge of the vent keyway. A vent is provided at the step at the edge of the vent keyway to connect the atmospheric cavity with the outside air.

[0012] The inlet pipe is equipped with a filter element and a one-way valve assembly along the fluid direction.

[0013] The valve body is a one-piece structure.

[0014] The beneficial effects of this utility model are as follows: This utility model sets multiple outlet pipes that are simultaneously connected to the inlet pipe on a single inlet valve, and controls the on / off state of each outlet pipe separately through several sets of on / off control components. Compared with the existing technology that achieves this through pipelines, this utility model forms a complete integrated unit. It satisfies complex multi-water circuit control, reduces the coordination between components, thereby reducing water circuit sealing points, greatly reducing the risk of product leakage and improving product safety. Reducing the number of accessories also greatly increases the convenience of installation and reduces costs. Furthermore, the size of the complete product using this utility model will be correspondingly reduced, which is in line with the current trend of limited space in cabinets / washing machines. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of this utility model.

[0016] Figure 1 This is a perspective view of one embodiment of the present utility model; Figure 2 This is a cross-sectional view from one angle of one embodiment of the present invention; Figure 3 This is a cross-sectional view from another angle of one embodiment of the present invention, specifically... Figure 2 AA direction; Figure 4 for Figure 3 Enlarged structural diagram of section I; Figure 5 This is a schematic diagram of the valve body in one embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the fixed bracket in one embodiment of the present invention; Figure 7 This is a cross-sectional view of the valve body at one angle in one embodiment of the present invention; Figure 8 This is a cross-sectional view of the valve body from another angle in one embodiment of the present invention; Figure 9 This is a schematic diagram of the internal structure of the negative pressure valve in one embodiment of the present invention; Figure 10 This is a schematic diagram of the upper valve cover in one embodiment of the present invention; Figure 11 This is a schematic diagram of the structure of the elastic retaining ring in one embodiment of the present invention; Figure 12 This is a schematic diagram of the structure of the lower valve cover in one embodiment of the present invention; Figure 13 This is a schematic diagram of the internal structure of the water inlet pipe in one embodiment of the present invention, namely... Figure 2 Enlarged schematic diagram of section I; In the diagram, valve body-100, inlet pipe-110, outlet pipe-120, control valve port-130, first flow passage-140, electromagnetic control annular valve port seat-150, second flow passage-160, first mating opening-170, connecting hole-171, negative pressure control annular valve port seat-180, fixed bracket-190, positioning protrusion ring-191; Solenoid valve control assembly-200, solenoid coil-210, coil frame-220, drive core-230; Negative pressure valve control assembly - 300, upper valve cover - 310, spring limit groove - 311, lower valve cover - 320, vent keyway - 321, vent - 322, negative pressure valve plug - 340, elastic actuating element - 350, pneumatic diaphragm - 360, moving part - 370, elastic retaining ring - 380, clamping spring - 381; Filter element - 400; One-way valve assembly-500. Detailed Implementation

[0017] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0018] It should be noted that all uses of "first" and "second" in the embodiments of this utility model are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first" and "second" are only for the convenience of expression and should not be construed as limiting the embodiments of this utility model. Subsequent embodiments will not explain this in detail.

[0019] The directional and positional terms used in this utility model, such as up, down, front, back, left, right, inside, outside, top, bottom, side, etc., are only for reference to the accompanying drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding this utility model, and not for limiting the scope of protection of this utility model.

[0020] A multi-functional water inlet valve, such as Figure 1As shown, the device includes a valve body 100 and several sets of on / off control components. Specifically, the valve body 100 has an inlet pipe 110 and several outlet pipes 120. Inside the valve body 100 are an inlet valve chamber connected to the inlet pipe 110, several outlet valve chambers connected to the outlet pipes 120, and several control valve ports 130 that connect the outlet valve chambers to the inlet valve chamber. The several sets of on / off control components cooperate with each of the control valve ports 130 to control the on / off state of each control valve port 130. This invention features multiple outlet pipes connected to the inlet pipe on a single inlet valve, and each outlet pipe is controlled by several sets of on / off control components. Compared to existing technologies that rely on pipework, this invention forms a unified integrated unit that enables complex multi-waterway control. This reduces the number of components and sealing points, significantly lowering the risk of leakage and improving product safety. The reduced number of accessories also greatly enhances installation convenience and lowers costs. Furthermore, the overall size of the product using this design is correspondingly smaller, aligning with the current trend of limited space in cabinets and washing machines.

[0021] In this embodiment, the plurality of on / off control components include at least two sets of solenoid valve control components 200 and at least one set of negative pressure valve control components 300. The at least two sets of solenoid valve control components 200 enable controllable supply of water through multiple channels, while the at least one set of negative pressure valve control components 300 allows for operation in conjunction with a water pump. The water pump generates negative pressure at the outlet of the negative pressure valve, causing the valve to open and thus supplying water to the water dispenser; achieving the purpose of multi-functionality. Specifically, in this local embodiment, there are four sets of solenoid valve control components 200 and one set of negative pressure valve control components 300.

[0022] like Figure 4 As shown, a set of solenoid valve control components 200 includes an electromagnetic coil 210, a coil frame 220, and a driving iron core 230 located within the coil frame 220; the valve body 100 is provided with an electromagnetic control annular valve seat 150 corresponding to the solenoid valve control component 200, the end of the electromagnetic control annular valve seat 150 forms a control valve port 130 that cooperates with the solenoid valve control component 200, and the inner cavity of the electromagnetic control annular valve seat 150 forms a water outlet valve cavity, such as... Figure 2 As shown, the outer cavity of the electromagnetic control annular valve seat 150 is connected through the first flow channel 140. Specifically, the electromagnetic valve control component 200 has been disclosed in the prior art, and the specific structure can be referred to in CN202411072917.2, which was disclosed earlier in this application. It will not be described in detail here.

[0023] In this application, all control valve ports 130 that cooperate with the solenoid valve control assembly 200 are arranged parallel to each other in the direction of their central axes, such as... Figure 2 , Figure 3As shown, the valve body 100 has a corresponding number of first mating openings 170 on the same side, which are connected to a fixing bracket 190. The fixing bracket 190 is fastened to the side of the valve body 100 with screws, and at least two sets of solenoid valve control assemblies 200 are fixed on the fixing bracket 190. The overall structure is simple and compact, and easy to assemble. The structure of the fixing bracket 190 is as follows: Figure 6 As shown, a positioning protrusion 191 is provided to engage with the coil frame 220. The valve body 100 has a plurality of connecting holes 171 evenly distributed around the outer periphery of the first mating opening 170. The fixing bracket 190 is secured to the side of the valve body 100 by screws threaded into the connecting holes 171. During assembly, all solenoid valve control components 200 are first installed on the fixing bracket 190, and then the fixing bracket 190 is secured to the valve body 100 by bolts. The positioning protrusion 191 effectively fixes the center position of the solenoid valve control components 200. The connecting holes 171 are evenly distributed around the outer periphery of the first mating opening 170, ensuring an effective sealing fit between each solenoid valve control component 200 and the valve body 100.

[0024] like Figure 2 , Figure 7 As shown, the electromagnetically controlled annular valve seat 150 is located on the same straight line, that is, all the electromagnetic valve control components 200 are arranged along a straight line, and the flow passages 160 connecting the outer cavities of adjacent electromagnetically controlled annular valve seat 150 are located on the same straight line. The overall structure is more compact and facilitates the machining of the first flow passage 140 in the valve body 100.

[0025] Several sets of on / off control components include at least one set of negative pressure valve control components 300, such as Figure 8 As shown, the valve body 100 is provided with a negative pressure control annular valve port seat 180 corresponding to the negative pressure valve control assembly 300. One end of the negative pressure control annular valve port seat 180 forms a control valve port 130 that cooperates with the negative pressure valve control assembly 300, such as... Figure 9 As shown, the negative pressure control annular valve seat 180 has an upper valve cover 310 fitted at one end of the control valve port 130 and a lower valve cover 320 fitted at the other end. The negative pressure control annular valve seat 180 and the upper valve cover 310 form an upper valve chamber connected to the inlet pipe 110, and the negative pressure control annular valve seat 180 and the lower valve cover 320 form a lower valve chamber connected to the corresponding outlet pipe 120. A set of negative pressure valve control components 300 includes components located at the upper valve port 130. The cavity includes a negative pressure valve plug 340, an elastic actuating element 350 disposed between the negative pressure valve plug 340 and the upper valve cover 310, and a pneumatic diaphragm 360 and a movable element 370 located in the lower valve cavity. The pneumatic diaphragm 360 divides the lower valve cavity into a medium cavity and an atmospheric cavity. The medium cavity is connected to the corresponding control valve port 130 and the water outlet pipe 120, and the atmospheric cavity is connected to the outside air. The two ends of the movable element 370 are respectively engaged with the pneumatic diaphragm 360 and the negative pressure valve plug 340.

[0026] Specifically, such as Figure 7 As shown, the upper valve chamber is connected to the first flow channel 140 via the second flow channel 160, thus connecting to the water inlet pipe 110. The second flow channel 160 is perpendicular to the first flow channel 140 for ease of processing.

[0027] Specifically, the elastic actuating element 350 is a compression spring, which is sleeved on the valve stem extending from the upper end of the negative pressure valve plug 340. The upper valve cover 310 has a spring limiting groove 311 that matches the shape of the elastic actuating element 350. Its two ends abut against the negative pressure valve plug 340 and the upper valve cover 310 respectively, forming a downward pressure force on the negative pressure valve plug 340, keeping it on the control valve port 130 at the upper end of the negative pressure control annular valve port seat 180. The pneumatic diaphragm 360 is circumferentially fixed between the valve body 100 and the lower valve cover 320. Its central area moves up and down with the pressure change in the medium cavity. When a negative pressure is formed in the medium cavity, the movable element 370 is driven by the pneumatic diaphragm 360 to push upward, opening the negative pressure valve plug 340, so that the upper valve cavity is connected to the medium cavity, thereby allowing water to flow out. Compared with the solenoid valve, the negative pressure valve adds the functions of regulation and control, and can be used with the downstream water pump to achieve controllable water pressure.

[0028] An elastic retaining ring 380 is provided between the upper valve cover 310 and the valve body 100, such as Figure 11 As shown, the elastic retaining ring 380 has several clamping springs 381 on its outer periphery. The elastic retaining ring 380 makes the upper valve cover 310 easy to assemble.

[0029] like Figure 12 As shown, the inner surface of the lower valve cover 320 is provided with a vent keyway 321 and a step is formed at the edge of the vent keyway 321. A vent 322 connecting the atmospheric cavity and the outside air is provided at the step at the edge of the vent keyway 321. This design can reduce the noise generated when the negative pressure valve control assembly 300 is working.

[0030] like Figure 13 As shown, the inlet pipe 110 is equipped with a filter element 400 and a one-way valve assembly 500 along the fluid direction. The filter element 400 is provided to prevent larger solid particles from entering the valve body 100, and the one-way valve assembly 500 can prevent backflow when the inlet is suddenly closed.

[0031] The valve body 100 is a one-piece structure. As an alternative embodiment, an assembled valve body 100 can also be selected, but this increases the cost and the number of leakage points.

[0032] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A multifunctional water inlet valve, characterized in that, include: The valve body (100) has an inlet pipe (110) and several outlet pipes (120), and has an inlet valve chamber connected to the inlet pipe (110), several outlet valve chambers connected to several outlet pipes (120), and several control valve ports (130) that connect several outlet valve chambers to the inlet valve chamber. Several sets of on / off control components are respectively matched with several control valve ports (130) to control the on / off state of several control valve ports (130) respectively.

2. The multifunctional water inlet valve according to claim 1, characterized in that: Several sets of on / off control components include at least two sets of solenoid valve control components (200), one set of solenoid valve control components (200) includes an electromagnetic coil (210), a coil frame (220) and a drive iron core (230) located in the coil frame (220); The valve body (100) is provided with an electromagnetic control annular valve seat (150) corresponding to the electromagnetic valve control assembly (200). The end of the electromagnetic control annular valve seat (150) forms a control valve port (130) that cooperates with the electromagnetic valve control assembly (200). The inner cavity of the electromagnetic control annular valve seat (150) forms a water outlet valve cavity. The outer cavity of the electromagnetic control annular valve seat (150) is connected through the first flow passage (140).

3. The multifunctional water inlet valve according to claim 2, characterized in that: All control valve ports (130) that cooperate with the solenoid valve control assembly (200) are arranged parallel to the central axis direction. The valve body (100) has a number of corresponding first mating openings (170) on the same side and is connected to a fixed bracket (190). The fixed bracket (190) is fastened to the side of the valve body (100) by screws. At least two sets of solenoid valve control assemblies (200) are fixed on the fixed bracket (190).

4. The multifunctional water inlet valve according to claim 3, characterized in that: The fixed bracket (190) is provided with a positioning protrusion (191) that is inserted into the coil frame (220). The valve body (100) has a plurality of connecting holes (171) evenly distributed around the outer periphery of the first mating opening (170). The fixing bracket (190) is fastened to the side of the valve body (100) by screws threadedly connecting to the connecting holes (171).

5. The multifunctional water inlet valve according to claim 2, characterized in that: The electromagnetic control annular valve seat (150) is located on the same straight line, and the flow passage (160) connecting the outer cavity of the adjacent electromagnetic control annular valve seat (150) is located on the same straight line.

6. The multifunctional water inlet valve according to claim 1, characterized in that: The several sets of on / off control components include at least one set of negative pressure valve control components (300). The valve body (100) is provided with a negative pressure control annular valve seat (180) corresponding to the negative pressure valve control component (300). One end of the negative pressure control annular valve seat (180) forms a control valve port (130) that cooperates with the negative pressure valve control component (300). One end of the negative pressure control annular valve seat (180) where the control valve port (130) is provided is fitted with an upper valve cover (310) and the other end is fitted with a lower valve cover (320). The negative pressure control annular valve seat (180) and the upper valve cover (310) form an upper valve chamber that communicates with the inlet pipe (110). The negative pressure control annular valve seat (180) and the lower valve cover (320) form a lower valve chamber that communicates with the corresponding outlet pipe (120). A set of negative pressure valve control components (300) includes a negative pressure valve plug (340) located in the upper valve chamber, an elastic actuating member (350) disposed between the negative pressure valve plug (340) and the upper valve cover (310), and a pneumatic diaphragm (360) and a movable member (370) located in the lower valve chamber. The pneumatic diaphragm (360) divides the lower valve chamber into a medium chamber and an atmospheric chamber. The medium chamber is connected to the corresponding control valve port (130) and the water outlet pipe (120). The atmospheric chamber is connected to the outside air. The movable member (370) is engaged with the pneumatic diaphragm (360) and the negative pressure valve plug (340) at both ends, respectively.

7. The multifunctional water inlet valve according to claim 6, characterized in that: An elastic retaining ring (380) is provided between the upper valve cover (310) and the valve body (100), and a plurality of clamping springs (381) are provided on the outer periphery of the elastic retaining ring (380).

8. The multifunctional water inlet valve according to claim 6, characterized in that: The inner surface of the lower valve cover (320) is provided with a vent keyway (321) and a step is formed at the edge of the vent keyway (321). A vent (322) connecting the atmospheric cavity and the outside air is provided at the step at the edge of the vent keyway (321).

9. The multifunctional water inlet valve according to claim 1, characterized in that: The inlet pipe (110) is provided with a filter element (400) and a one-way valve assembly (500) along the fluid direction.

10. The multifunctional water inlet valve according to any one of claims 1-9, characterized in that: The valve body (100) is a one-piece structure.

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