A pressurized water mixing valve

Abstract

This invention provides a pressure-boosting mixing valve, comprising a valve body, a turbine fan, a rotating column, and a plunger. The invention optimizes the internal water circuit, transmission, and assembly structure of the valve body, employing independent inlet and pressure-boosting channels to deliver hot and cold water flows respectively. Both inlet and pressure-boosting channels utilize a bent and offset layout, which, combined with the valve core assembled within the valve core cavity, enables precise mixing and flow regulation of the hot and cold water flows. During operation, the turbine fan in the first interface rotates synchronously with the rotating column inside the second interface due to the impact of the water flow. The ribs of the rotating column abut against the limiting pins on the side of the plunger, driving the two plungers to reciprocate axially across the two sets of pressure-boosting channels. This allows the two pressure-boosting channels to alternately and continuously deliver high-pressure water to the valve core, avoiding the intermittent water flow and pressure fluctuations inherent in single-channel pressure boosting operations, thus improving the uniformity and continuity of the mixing valve's outlet pressure.

Description

Technical Field

[0001] This invention relates to the field of water valve structure, and in particular to a pressure boosting mixing valve. Background Technology

[0002] In bathroom water usage scenarios, there are numerous technologies related to mixing valves that can boost the output of hot water pipes. Household storage water heaters rely on the weight of the water body to deliver hot water, resulting in a relatively low basic pressure for the hot water outlet. After mixing with cold water, the overall water flow rate is insufficient to meet the needs of daily bathing. Therefore, various mixing valve products with added pressure boosting structures for hot water passages have emerged in the industry. For example, a scale-resistant pressure boosting mixing valve disclosed in application number 202011323290.5 uses cold water flow to drive an impeller to output power, and then uses a gear meshing structure to drive the pressure boosting chamber. The pressure boosting mechanism is set inside the hot water inlet passage and is specifically designed to pressurize the incoming hot water.

[0003] This type of mixing valve relies on the rotation of the pressure chamber to drive the top block to intermittently contact the arc plate to achieve pressure boosting. However, when the pressure chamber rotates continuously with the gear, the elastic membrane will only be squeezed inward when the top block rotates to the corresponding position of the arc plate to reduce the water storage space inside the pressure chamber and complete the hot water pressurization. After the top block disengages from the arc plate, the elastic membrane resets and the volume of the pressure chamber returns to normal. The hot water is no longer squeezed and pushed. The entire pressure boosting process can only be completed in segments and intermittently. During the continuous water output process, the mixing valve will repeatedly experience water pressure interruption and drop, and it will be impossible to output a uniform and continuous water flow throughout the process, which greatly reduces the bathing experience. Summary of the Invention

[0004] To address the shortcomings mentioned in the background art, the present invention provides a pressure-boosting mixing valve.

[0005] The present invention adopts the following technical solution: A pressure-boosting mixing valve includes: The valve body has a first interface, a second interface, a third interface, an inlet channel, a booster channel, and an outlet channel, and a valve core is also assembled inside the valve body. The first interface and the second interface are respectively located at corresponding ends of the valve body. One end of the inlet channel extends through to the end face inside the first interface, and the other end of the inlet channel is connected to one of the inlets of the valve core. The valve body is provided with two booster channels. One end of each booster channel extends through to the end face inside the second interface, and the other end of each booster channel is connected to the other inlet of the valve core. One end of the outlet channel extends through to the end face of the third interface, and the other end of the outlet channel is connected to the outlet of the valve core. A turbofan, wherein the center of the turbofan is fixedly connected to a shaft, and the turbofan is disposed inside the first interface, the connecting shaft passing through the valve body to the second interface; A rotating column is provided with ribs on its annular surface. The ribs extend along the circumference of the rotating column to form an undulating closed-loop curve structure. The rotating column is disposed within the second interface, and the rotating column and the connecting shaft are fixed. A plunger, with two limiting pins provided on the side of one end of the plunger, and the plunger provided on both sides of the rotating column, and the two plungers are respectively restricted to move axially relative to the ports of the two pressurized flow channels, and the two limiting pins of the plunger respectively abut against the two sides of the protruding rib. The turbine fan rotates, causing the rotating column to rotate, which in turn causes the rib to rotate and move the two plungers relative to the two pressurizing channels. When the limiting pin moves to the end of the rib that is close to the pressurizing channel, it moves the plunger into the pressurizing channel. When the limiting pin moves to the end of the rib that is away from the pressurizing channel, it moves the plunger out of the pressurizing channel.

[0006] In one possible implementation, the mixing valve further includes a guide and a fixing sleeve. The guide is provided with two irregularly shaped guide holes, and one end of the plunger is provided with a guide portion. A step is formed inside the second interface. The guide is embedded in the second interface and abuts against the step, so that the two guide portions pass through the two guide holes respectively. The fixing sleeve is screwed into the second interface to fasten the guide to the step.

[0007] In one possible implementation, a limiting hole is provided at the center of the guide member, and the end of the rotating column facing outward from the second interface is adapted to be embedded in the limiting hole.

[0008] In one possible implementation, the mixing valve further includes a limiting member, one end of which is provided with a roller, the end face of which extends beyond the end of the limiting member; the valve body is provided with a receiving port between the first interface and the second interface, and the connecting shaft is provided with an annular groove on its annular surface. When the connecting shaft passes through the first interface to the second interface, the annular groove corresponds to the receiving port, and the limiting member is inserted into and fixed in the receiving port, so that the roller is embedded in the annular groove.

[0009] In one possible implementation, the valve body has an internal thread in the receiving port, which is adapted to a threaded connection fixing bolt. Tightening the fixing bolt presses the limiting member into the roller abutting the annular groove.

[0010] In one possible implementation, the valve body is further provided with a valve core cavity, the valve core cavity being located on one side of the valve body between the first interface and the second interface, the valve core being disposed within the valve core cavity, the water inlet channel being a channel bent at 90°, and a section of the water inlet channel being parallel to the connecting shaft, and the end of the water inlet channel parallel to the connecting shaft being offset from the axis of the second interface.

[0011] In one possible implementation, the mixing valve further includes a water-isolating component, which and the valve core are sequentially embedded in the valve core cavity; one side of the water-isolating component is provided with a water-receiving groove, and the other side of the water-isolating component is provided with a first guide hole, which communicates with the water-receiving groove; after the water-isolating component is embedded in the valve core cavity, the water-receiving groove covers the end of the water inlet channel away from the first interface, and the first guide hole communicates with one of the water inlets of the valve core.

[0012] In one possible implementation, the valve body is further provided with a valve core cavity, the valve core cavity being located on one side of the valve body between the first interface and the second interface, the valve core being disposed within the valve core cavity, the pressurization flow channel being a channel bent at 90°, and a section of the two pressurization flow channels being parallel to the connecting shaft, and the section of the two pressurization flow channels parallel to the connecting shaft being offset from the axis of the second interface.

[0013] In one possible implementation, the mixing valve further includes a water-isolating element, which and the valve core are sequentially embedded in the valve core cavity; one side of the water-isolating element is provided with a mixing groove, and the other side of the water-isolating element is provided with a second guide hole, which communicates with the mixing groove; after the water-isolating element is embedded in the valve core cavity, the mixing groove covers the end of the two pressurized flow channels away from the second interface, and the second guide hole communicates with one of the water inlets of the valve core.

[0014] In one possible implementation, the water-blocking element is further provided with a through third guide hole. After the water-blocking element is embedded in the valve core cavity, one end of the third guide hole corresponds to the water outlet channel, and the other end of the third guide hole corresponds to the water outlet in the valve core.

[0015] As can be seen from the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages: The present invention uses the synchronous rotation of the rotating column inside the second interface and the linkage connecting shaft under the impact of water flow of the turbofan. Relying on the abutting cooperation between the rib and the limiting pin on the side of the plunger, it can drive the two plungers to perform reciprocating axial displacement motion corresponding to the two sets of pressurizing channels. When the plunger extends into the pressurizing channel, it can squeeze and pressurize the water in the channel. When the plunger exits the pressurizing channel, it can replenish the water in the channel. The two sets of plungers alternately complete the extension and withdrawal actions according to the contour of the rib, so that the two pressurizing channels can alternately and continuously deliver high-pressure water flow to the valve core, effectively optimizing the pressurization and water output performance of the mixing valve, avoiding the defects of water output intermittent and water pressure fluctuation in single channel pressurization operation, and stably improving the uniformity and continuity of water output pressure of the mixing valve. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a frontal view of the valve body from the perspective of the valve core cavity.

[0018] Figure 3 This is a three-dimensional structural diagram of the valve body from the perspective of the first interface.

[0019] Figure 4 This is a three-dimensional structural diagram of the present invention from the perspective of the first interface.

[0020] Figure 5 This is a three-dimensional structural diagram of the valve body from the second interface perspective.

[0021] Figure 6 This is a three-dimensional structural diagram of the present invention from the second interface perspective.

[0022] Figure 7 This is a cross-sectional schematic diagram of the present invention.

[0023] Figure 8 for Figure 7 An enlarged schematic diagram of point A in the middle.

[0024] Figure 9 for Figure 7 A magnified diagram of point B in the middle.

[0025] Figure 10 for Figure 7 A cross-sectional view along the CC direction.

[0026] Figure 11 This is a three-dimensional structural diagram of a turbofan driving a rotating column to rotate relative to a guide component via a connecting shaft.

[0027] Figure 12 for Figure 11 A diagram from another perspective.

[0028] Figure 13 for Figure 12 A magnified diagram of point D in the middle.

[0029] Figure 14 This is a schematic diagram of the three-dimensional structure of the rotating column.

[0030] Figure 15 This is a three-dimensional structural diagram of the waterproofing component.

[0031] Figure 16 This is a three-dimensional structural diagram of the valve core. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this application clearer, the application will be described in further detail below with reference to the accompanying drawings.

[0033] Hereinafter, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature.

[0034] Furthermore, in this application, directional terms such as "upper" and "lower" are defined relative to the indicated placement of the components in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the placement of the components in the accompanying drawings.

[0035] The present invention discloses a pressure-boosting mixing valve, as shown in the attached figure. Figures 1 to 6 As shown, the mixing valve includes a valve body 1, a turbine fan 2, a rotating column 3, and a plunger 4. The valve body 1 has a first interface 101, a second interface 102, a third interface 103, a water inlet channel 104, a pressure boosting channel 105, and a water outlet channel 106, as well as a valve core cavity 107. A valve core 5 is assembled within the valve core cavity 107. The first interface 101 and the second interface 102 are respectively located at the ends of the valve body 1 corresponding to the valve core cavity 107 on both sides. The first interface 101 and the second interface 102 can be selectively connected to a cold water pipe, with the remaining one connected to a hot water pipe. The third interface 103 is connected to a water outlet component, such as a shower head.

[0036] Please refer to the appendix. Figure 7 and 10One end of the inlet channel 104 extends to the end face inside the first interface 101, and the other end of the inlet channel 104 is connected to one of the inlets 501 of the valve core 5. The valve body 1 is provided with two booster channels 105, one end of each booster channel 105 extends to the end face inside the second interface 102, and the other end of each booster channel 105 is connected to the other inlet 501 of the valve core 5. One end of the outlet channel 106 extends to the end face of the third interface 103, and the other end of the outlet channel 106 is connected to the outlet 502 of the valve core 5. Hot and cold water flows are independently introduced into the valve core 5 via the inlet channel 104 and the booster channel 105, respectively. The two water flows mix thoroughly inside the valve core 5, and the mixed water flows converge into the outlet channel 106 through the outlet 502 of the valve core 5. One end of the outlet channel 106 connects to the end face of the third interface 103, and the other end connects to the outlet 502 of the valve core 5. Finally, the mixed water flow is discharged through the outlet channel 106. By using the independently arranged inlet channel 104 and booster channel 105, the two inlet water flows can be independently guided and transported, avoiding interference between different inlet water flows. Furthermore, the valve core 5 can control the flow rate of the two water flows.

[0037] As attached Figure 7 and 8 As shown, the turbofan 2 has a centrally fixed connecting shaft 21. The turbofan 2 is located inside the first interface 101, and the connecting shaft 21 passes through the valve body 1 to the second interface 102, and is then connected and fixed to the rotating column 3 located in the second interface 102. The connecting shaft 21 can be assembled by having a through mounting channel 108 formed on the central axis between the first interface 101 and the second interface 102, and then using a limiting member 6 to limit the axial movement of the connecting shaft 21 to complete the installation.

[0038] Please refer to the appendix. Figure 5 , 11A recessed annular groove 201 is provided on the annular surface of the connecting shaft 21 near the middle position. A receiving port 109 is provided on the valve body 1 between the first port 101 and the second port 102. The receiving port 109 extends to the mounting channel 108 and is used to embed the limiting member 6. A roller 61 is provided at one end of the limiting member 6, and the end face of the roller 61 extends out of the end of the limiting member 6. When the connecting shaft 21 passes through the mounting channel 108 to the second interface 102 within the first interface 101, and the annular groove 201 aligns with the receiving port 109, the limiting member 6 is then inserted and fixed in the receiving port 109, causing the roller 61 to be embedded in the annular groove 201. The roller 61, by being engaged in the annular groove 201, limits the axial movement of the connecting shaft 21, ensuring that the turbofan 2 and the rotating column 3 are axially fixed within the first interface 101 and the second interface 102 respectively, allowing only rotation, and restricting the rotating column 3 to be positioned between the ports of the two pressurizing channels 105. Simultaneously, during the rotation of the connecting shaft 21, the roller 61 rotates synchronously with the inner wall of the annular groove 201, causing rolling friction between the connecting shaft 21 and the limiting member 6 to replace sliding friction, thus not obstructing the circumferential rotation of the connecting shaft 21 and not interfering with the continuous rotation of the connecting shaft 21 throughout the process. In addition, the valve body 1 has an internal thread in the receiving port 109, which is adapted to the threaded connection fixing bolt 62. The limiting member 6 is inserted into the receiving port 109. The fixing bolt 62 is tightened into the internal thread of the receiving port 109 by screwing the fixing bolt 62 into the receiving port 109, and the limiting member 6 is pressed in until the roller 61 abuts against the annular groove 201, so as to ensure that the limiting member 6 limits the connection shaft 21.

[0039] Furthermore, oil-sealed bearings (not shown in the attached figure) are installed at both ports of the installation channel 108 within the first interface 101 and the second interface 102. The oil-sealed bearings form a support structure for both ends of the connecting shaft 21, preventing the connecting shaft 21 from contacting the inner wall of the installation channel 108. At the same time, the oil-sealed bearings can also seal the gaps at both ends of the installation channel 108, preventing the water inside the first interface 101 and the water inside the second interface 102 from flowing between each other through the installation channel 108.

[0040] Referring again to the attached diagram, the installation method of the connecting shaft 21 and the rotating column 3 can be as shown in the attached diagram. Figure 9 and 14As shown, the end face of the connecting shaft 21 is threaded with a screw 22, and a keyway is provided on the side of the connecting shaft 21. The center of the rotating column 3 is provided with a connecting hole 301, and a protruding key bar 33 is provided on the inner side wall of the connecting hole 301. A retaining ring 31 is provided on the end face of one end of the rotating column 3 outside the connecting hole 301. After the connecting shaft 21 passes through the installation channel 108 and is restricted by the limiting member 6, the connecting hole 301 of the rotating column 3 is fitted onto the outside of the connecting shaft 21, and the key bar 33 is correspondingly embedded in the keyway. Then, the screw 22 and the connecting shaft 21 are tightened until the retaining ring 31 at the other end of the rotating column 3 abuts against the end face of the inner ring of the oil seal bearing, thus completing the connection and fixation of the connecting shaft 21 and the rotating column 3. When water enters the first interface 101, it drives the turbine fan 2 to rotate, which drives the connecting shaft 21 to rotate, thereby causing the rotating column 3 to rotate synchronously. After the water flows into the first interface 101, it impacts the turbine fan 2 and causes it to rotate. The turbine fan 2 drives the connecting shaft 21 to rotate synchronously. When the connecting shaft 21 rotates, it transmits torque to the rotating column 3 through the key bar 33, ensuring that the rotating column 3 rotates synchronously with the connecting shaft 21.

[0041] As attached Figure 13 and 14 As shown, the rotating column 3 has ribs 32 on its annular surface, which extend circumferentially along the rotating column 3 to form an undulating closed-loop curve structure. Pistons 4 are provided on both sides of the rotating column 3, and the two pistons 4 are respectively restricted to axial movement relative to the ports of the two pressurized flow channels 105. Specifically, this restriction can be achieved through guide members 7 and fixing sleeves 71, as shown in the attached figure. Figure 11 and 12 As shown, the guide component 7 is a hollow sheet structure to facilitate water flow. The guide component 7 has two irregularly shaped guide holes 701. One end of the plunger 4 has a guide portion 41, which can be a D-shaped cross-section cut from the end of the plunger 4. The guide holes 701 are D-shaped through holes. (See attached diagram.) Figure 5 A step 11 is formed on the inner wall of the second interface 102. During assembly, the guide 7 is inserted into the second interface 102 until it abuts against the step 11, and the two guide parts 41 pass through the two guide holes 701 respectively. Then, the fixing sleeve 71 is screwed into the second interface 102 and tightened, so that the fixing sleeve 71 presses and fixes the guide 7 to the step 11. By using the two guide holes 701 of the fixed guide 7 to engage with the shaft holes formed by the guide parts 41 at the ends of the two plungers 4, the axial movement of the two plungers 4 relative to the port of the pressurization channel 105 can be restricted to the side of the rotating column 3. Furthermore, a limiting hole 702 is provided in the center of the guide 7, and one end of the rotating column 3 is adapted to fit into the limiting hole 702, thereby providing support for the end of the rotating column 3, preventing tilting or offset during the operation of the rotating column 3, and keeping the rotating column 3 and the connecting shaft 21 coaxially arranged.

[0042] Please refer to the appendix. Figure 13Two limiting pins 42 are provided on the side of one end of the plunger 4. The two limiting pins 42 of the plunger 4 respectively abut against the two side walls of the rib 32. In this way, when the rotating column 3 rotates and drives the rib 32 to rotate synchronously, the rib 32 can push the limiting pins 42 by the side wall, so that the plunger 4 is displaced relative to the rotating column 3 and the port of the pressurization channel 105. For details, please refer to the appendix. Figure 7 and 10 The water flowing into the first interface 101 impacts the turbine fan 2, causing it to rotate. The turbine fan 2 drives the rotating column 3 to rotate synchronously via the connecting shaft 21. The rotating rib 32 pushes the two plungers 4 to move relative to their respective pressurization channels 105. When the rib 32 pushes the limiting pin 42 to a position close to the end of the rib 32 in the pressurization channel 105, it pushes the plunger 4 into the pressurization channel 105, causing the plunger 4 to squeeze the water inside the pressurization channel 105 and deliver it to the valve core 5, increasing the pressure of the water flowing into the valve core 5. When the rib 32 pushes the limiting pin 42 to a position away from the end of the rib 32 in the pressurization channel 105, the rib 32 pulls the plunger 4 out of the space inside the pressurization channel 105, allowing the water in the second interface 102 to smoothly enter the pressurization channel 105, providing sufficient water to be squeezed for the subsequent plunger 4 to enter the pressurization channel 105. Two plungers 4 follow the contour of the rib 32 and alternately extend into and out of the corresponding pressurization channel 105, so that the two pressurization channels 105 alternately deliver high-pressure water into the valve core 5, eliminating the problem of water flow interruption caused by the interruption of a single pressurization channel 105, continuously supplying a stable high-pressure water flow to the valve core 5, and improving the uniformity of the water pressure at the outlet of the mixing valve.

[0043] In addition, both the inlet channel 104 and the booster channel 105 are channels with a 90° bend. A section of the inlet channel 104 and a section of the booster channel 105 are parallel to the connecting shaft 21. The sections of the inlet channel 104 and the booster channel 105 that are parallel to the connecting shaft 21 are offset relative to the axis of the second interface 102. The offset pipe section is a reserved assembly avoidance area for the installation channel 108, which reduces the structural interference between the various channels inside the valve body 1 and the shaft channel, and simplifies the processing difficulty of the integral casting of the valve body 1.

[0044] Please refer to the appendix. Figure 10 The mixing valve of the present invention further includes a water-isolating element 8, and the water-isolating element 8 and the valve core 5 are sequentially embedded inside the valve core cavity 107. (See attached diagram) Figure 15One side of the water-isolating component 8 is provided with a water receiving groove 801 and a mixing groove 802, and the other side of the water-isolating component 8 is provided with a first guide hole 803 and a second guide hole 804. The first guide hole 803 is connected to the water receiving groove 801, and the second guide hole 804 is connected to the mixing groove 802. The water-isolating component 8 is also provided with a third guide hole 805 penetrating both sides. After the water-isolating component 8 is embedded in the valve core cavity 107, the water receiving groove 801 covers the end of the water inlet channel 104 away from the first interface 101, the mixing groove 802 covers the end of the two pressurizing channels 105 away from the second interface 102, and one end of the third guide hole 805 corresponds to the water outlet channel 106. After the valve core 5 is embedded in the valve core cavity 107, the first guide hole 803 is connected to one of the water inlets 501 of the valve core 5, the second guide hole 804 is connected to the other water inlet 501 of the valve core 5, and the other end of the third guide hole 805 corresponds to the water outlet 502 in the valve core 5. The above structure separates the various water inlet channels of the valve body 1 from the valve core 5 through the water-separating component 8. Combined with the water receiving trough 801 collecting a single water inlet and the mixing trough 802 collecting two pressurized water inlets, and the arrangement of the first guide hole 803 and the second guide hole 804 corresponding to the water receiving trough 801 and the mixing trough 802 respectively, the internal water flow direction of the valve body 1 can be uniformly regulated, and the points of water flow conduction within the valve core cavity 107 can be adjusted to match the following... Figure 16 The position of the inlet 501 of the conventional valve core 5 shown is to avoid the irregular port profile of the valve core cavity 107 caused by the offset arrangement of the inlet channel 104 and the booster channel 105, which would prevent the position of the inlet 501 of the conventional valve core 5 from being mismatched.

[0045] Furthermore, on the same end face of the water-isolating component 8, matching sealing grooves can be provided on the outer periphery of the openings of the water receiving groove 801, the mixing groove 802, and the third guide hole 805. Sealing rings are installed in the sealing grooves. After the water-isolating component 8 is embedded in the valve core cavity 107 and fixed, the sealing rings achieve the sealing and blocking effect at the connection positions of each water flow channel, effectively preventing water leakage and crossflow problems.

[0046] Preferably, the bottom surface of the valve core cavity 107 is formed with two protruding positioning pins 12, and the water-isolating component 8 is provided with two through positioning holes 806. When installing the water-isolating component 8, the two positioning holes 806 are respectively passed through the two positioning pins 12, so that the water receiving groove 801 covers the end of the water inlet channel 104 away from the first interface 101, and the mixing groove 802 covers the end of the two pressurizing channels 105 away from the second interface 102, thus forming the positioning installation of the water-isolating component 8. During the subsequent installation of valve core 5, the two positioning grooves on the end face of valve core 5 with water inlet 501 can be correspondingly sleeved on the outside of the two positioning pins 12 to complete the alignment and positioning installation of valve core 5. Finally, through the pressure cap structure screwed together inside valve core cavity 107, the valve core 5 and water-isolating component 8 are axially pressed and limited, so that valve core 5 and water-isolating component 8 are stably fixed inside valve core cavity 107, ensuring the accurate alignment and conduction of each water flow channel and the water circuit of valve core 5, and ensuring the overall assembly accuracy of the equipment and the stability of the water circuit conduction.

[0047] This invention achieves independent flow guidance and delivery of hot and cold water by independently arranging an inlet channel 104 and a booster channel 105 inside the valve body 1, avoiding mutual interference between water flows and cooperating with the valve core 5 to complete flow regulation of dual water flows. At the same time, relying on the hydraulic driving force generated by the water impact turbine fan 2, the connecting shaft 21 and the rotating column 3 rotate synchronously. With the help of the ribs 32 of the circumferential undulating closed-loop structure of the rotating column 3, the two sets of plungers 4 reciprocate and alternately extend into and exit the booster channel 105, realizing alternating high-pressure water delivery through the dual booster channels 105, effectively eliminating the problem of water flow intermittency, and significantly improving the uniformity and stability of the outlet pressure of the mixing valve. Combined with the multi-stage cooperation of the limiting component 6, oil seal bearing, key strip 33, guide component 7 and fixing sleeve 71, this invention effectively eliminates the problem of water flow intermittentness and significantly improves the uniformity and stability of the outlet pressure of the mixing valve. This structure ensures smooth and continuous rotation of the connecting shaft 21 while achieving precise positioning and coaxial assembly of each structural component. It eliminates problems such as component misalignment, water crossflow, and movement jamming, reduces interference within the valve body 1's internal structure, and simplifies the integrated casting process. Simultaneously, the water-isolating component 8 isolates and adapts the flow channel of the valve body 1 from the water path of the valve core 5, regulates the internal water flow direction, and matches the conventional valve core 5 installation structure. Combined with the sealing structure of the sealing ring and the positioning and clamping structure composed of the positioning pin 12, positioning hole 806, positioning groove, and pressure cap, it significantly improves the overall assembly accuracy, water path alignment and conduction accuracy, and sealing performance at each connection point, comprehensively optimizing the overall stability and reliability of the booster mixing valve's operation.

[0048] In summary, this invention optimizes the internal water path, transmission, and assembly structure of the valve body 1. It employs independent inlet channels 104 and booster channels 105 to deliver hot and cold water flows separately, avoiding mutual interference between different water flows during transport. Combined with the valve core 5 assembled within the valve core cavity 107, precise mixing and flow regulation of the hot and cold water flows can be achieved. Furthermore, both the inlet channel 104 and the booster channel 105 adopt a bent and offset layout, effectively reducing interference within the valve body 1's internal structure and lowering the processing difficulty of the valve body 1's integral casting. The water-blocking component 8 added inside the valve core cavity 107 regulates the water flow direction within the valve body 1, adapting to the conventional valve core 5's water hole docking points and solving the water path alignment deviation problem caused by flow channel offset. When the mixing valve is working, the water flow impact drives the turbine fan 2 to rotate, which in turn drives the rotating column 3 to rotate synchronously via the connecting shaft 21. Based on this, during the operation of the rotating column 3, the two sets of plungers 4 can be driven to reciprocate along the port of the pressurizing channel 105 through the cooperation of the rib 32 and the limiting pin 42. When the plunger 4 enters the pressurizing channel 105, it squeezes the internal water to achieve water pressure increase. When the plunger 4 exits the pressurizing channel 105, water is replenished to prepare for the next pressurization and delivery. The two pressurizing channels 105 continuously and alternately output high-pressure water flow, completely avoiding the defects of flow interruption and water outlet intermittent caused by the operation of a single pressurizing channel 105, greatly improving the continuity and uniformity of the water outlet pressure of the mixing valve, and significantly improving the overall water outlet pressurization effect of the mixing valve.

[0049] The above are merely specific embodiments of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantial modifications made to the present invention using this concept shall be considered as infringing upon the protection scope of the present invention.

Claims

1. A pressure-boosting mixing valve, characterized in that, The mixing valve includes: The valve body has a first interface, a second interface, a third interface, an inlet channel, a booster channel, and an outlet channel, and a valve core is also assembled inside the valve body. The first interface and the second interface are respectively located at corresponding ends of the valve body. One end of the inlet channel extends through to the end face inside the first interface, and the other end of the inlet channel is connected to one of the inlets of the valve core. The valve body is provided with two booster channels. One end of each booster channel extends through to the end face inside the second interface, and the other end of each booster channel is connected to the other inlet of the valve core. One end of the outlet channel extends through to the end face of the third interface, and the other end of the outlet channel is connected to the outlet of the valve core. A turbofan, wherein the center of the turbofan is fixedly connected to a shaft, and the turbofan is disposed inside the first interface, the connecting shaft passing through the valve body to the second interface; A rotating column is provided with ribs on its annular surface. The ribs extend along the circumference of the rotating column to form an undulating closed-loop curve structure. The rotating column is disposed within the second interface, and the rotating column and the connecting shaft are fixed. A plunger, with two limiting pins provided on the side of one end of the plunger, and the plunger provided on both sides of the rotating column, and the two plungers are respectively restricted to move axially relative to the ports of the two pressurized flow channels, and the two limiting pins of the plunger respectively abut against the two sides of the protruding rib. The turbine fan rotates, causing the rotating column to rotate, which in turn causes the rib to rotate and move the two plungers relative to the two pressurizing channels. When the limiting pin moves to the end of the rib that is close to the pressurizing channel, it moves the plunger into the pressurizing channel. When the limiting pin moves to the end of the rib that is away from the pressurizing channel, it moves the plunger out of the pressurizing channel.

2. A pressure-boosting mixing valve as described in claim 1, characterized in that, The mixing valve also includes a guide and a fixing sleeve. The guide has two irregularly shaped guide holes, and one end of the plunger has a guide portion. A step is formed inside the second interface. The guide is embedded in the second interface and abuts against the step, so that the two guide portions pass through the two guide holes respectively. The fixing sleeve is screwed into the second interface to fasten the guide to the step.

3. A pressure-boosting mixing valve as described in claim 2, characterized in that, The guide member has a limiting hole at its center, and the end of the rotating column facing outward from the second interface is fitted into the limiting hole.

4. A pressure-boosting mixing valve as described in claim 1, characterized in that, The mixing valve also includes a limiting member, one end of which is provided with a roller, the end face of which extends out of the end of the limiting member; the valve body is provided with a receiving port between the first interface and the second interface, and the connecting shaft is provided with an annular groove on its annular surface. When the connecting shaft passes through the first interface to the second interface, the annular groove corresponds to the receiving port, and the limiting member is inserted into and fixed in the receiving port, so that the roller is embedded in the annular groove.

5. A pressure-boosting mixing valve as described in claim 4, characterized in that, The valve body has an internal thread in the receiving port, which is adapted to a threaded connection fixing bolt. When the fixing bolt is tightened, the limiting member is pressed into the roller and pressed into the annular groove.

6. A pressure-boosting mixing valve as described in claim 1, characterized in that, The valve body is further provided with a valve core cavity, which is located on one side of the valve body between the first interface and the second interface. The valve core is disposed in the valve core cavity. The water inlet channel is a channel bent at 90°, and one section of the water inlet channel is parallel to the connecting shaft. The end of the water inlet channel that is parallel to the connecting shaft is offset from the axis of the second interface.

7. A pressure-boosting mixing valve as described in claim 6, characterized in that, The mixing valve also includes a water-isolating component, which and the valve core are sequentially embedded in the valve core cavity; one side of the water-isolating component is provided with a water receiving groove, and the other side of the water-isolating component is provided with a first guide hole, which is connected to the water receiving groove. After the water-isolating component is embedded in the valve core cavity, the water receiving groove covers the end of the water inlet channel away from the first interface, and the first guide hole is correspondingly connected to one of the water inlets of the valve core.

8. A pressure-boosting mixing valve as described in claim 1, characterized in that, The valve body is further provided with a valve core cavity, which is located on one side of the valve body between the first interface and the second interface. The valve core is disposed in the valve core cavity. The pressurization channel is a channel bent at 90°. One section of the two pressurization channels is parallel to the connecting shaft, and the section of the two pressurization channels parallel to the connecting shaft is offset from the axis of the second interface.

9. A pressure-boosting mixing valve as described in claim 8, characterized in that, The mixing valve also includes a water-isolating component, which and the valve core are sequentially embedded in the valve core cavity; a mixing groove is provided on one side of the water-isolating component, and a second guide hole is provided on the other side of the water-isolating component. The second guide hole is connected to the mixing groove. After the water-isolating component is embedded in the valve core cavity, the mixing groove covers the end of the two pressurized flow channels away from the second interface, and the second guide hole is correspondingly connected to one of the water inlets of the valve core.

10. A pressure-boosting mixing valve as described in claim 6 or 8, characterized in that, The water-blocking component is also provided with a through third guide hole. After the water-blocking component is embedded in the valve core cavity, one end of the third guide hole corresponds to the water outlet channel, and the other end of the third guide hole corresponds to the water outlet in the valve core.

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