Flow-controllable intelligent water mixing temperature control valve device for shared water dispenser

Abstract

The invention discloses a flow-controllable intelligent water mixing temperature control valve device for a shared water dispenser, which comprises a hot water pipe and a cold water pipe, one end of the hot water pipe is correspondingly communicated with a hot water cavity of the water dispenser, one end of the cold water pipe is correspondingly communicated with a cold water cavity of the water dispenser, the hot water pipe is connected with two first branch pipes, and the cold water pipe is connected with two second branch pipes; a hot water port and a cold water port are respectively formed in two sides of the first temperature control valve and the second temperature control valve; the mixed flow valve is internally provided with two flow channels, and the first temperature control valve and the second temperature control valve are correspondingly communicated with the flow channels respectively; the first temperature control valve and the second temperature control valve can work independently and are responsible for flow adjustment of high-temperature water and low-temperature water respectively, and the water supply flow and the water supply temperature can be automatically adjusted according to different water use modes of the water dispenser in the use process, so that the temperature of drinking water accurately reaches the temperature required by a user; the multi-section temperature control water supply requirement is met, and the temperature error is small.

Description

Technical Field

[0001] The present invention belongs to the technical field of water-using equipment, and specifically relates to an intelligent mixing and temperature control valve device with controllable flow rate for a shared drinking fountain. Background Art

[0002] With the increasing social demand for healthy drinking water, shared drinking fountains, as a convenient and hygienic drinking water equipment, have gradually become popular in public places (such as schools, offices, shopping malls, stations, etc.); currently, most of the shared drinking fountains on the market use simple mechanical or electronic temperature control valves, which cannot achieve precise temperature adjustment. Users usually can only choose hot water or cold water at fixed temperatures, making it difficult to meet the diverse needs in different scenarios; while some drinking water equipment is equipped with mixing valves, but traditional mixing and temperature control valve devices mostly rely on mechanical structures. During the temperature adjustment process, it is easy for the deviation between the detected temperature by the sensor and the actual water temperature to occur due to inaccurate mixing ratio of cold and hot water or insufficient mixing, resulting in water temperature fluctuations or deviations, affecting the user experience.

[0003] Therefore, it is necessary to provide an intelligent mixing and temperature control valve device with controllable flow rate for a shared drinking fountain to solve the problems raised in the above background art. Summary of the Invention

[0004] To achieve the above object, the present invention provides the following technical solution: an intelligent mixing and temperature control valve device with controllable flow rate for a shared drinking fountain, which includes: A hot water pipe and a cold water pipe, one ends of which are respectively connected to the hot water chamber and the cold water chamber of the drinking fountain in correspondence. Two first branch pipes are connected to the hot water pipe, and two second branch pipes are connected to the cold water pipe; A first temperature control valve and a second temperature control valve, with a hot water port and a cold water port respectively arranged on both sides. The hot water ports of the first temperature control valve and the second temperature control valve are connected to the first branch pipes, and the cold water ports of the first temperature control valve and the second temperature control valve are connected to the second branch pipes; A mixing valve, which has two flow channels inside, and the first temperature control valve and the second temperature control valve are respectively connected to the corresponding flow channels.

[0005] Furthermore, as a preference, drainage ports are provided at the lower ends of the first temperature control valve and the second temperature control valve. A branch pipe is connected to the outside of the drainage port, and a sealing valve is installed at the other end of the branch pipe. One side of the sealing valve is connected to the mixing valve through a connecting pipe.

[0006] Furthermore, as a preference, the first temperature control valve and the second temperature control valve have the same composition structure; The first temperature control valve includes: A valve body, inside which a heat flow chamber and a cold flow chamber are symmetrically distributed around the center. The hot water port is located on one side of the heat flow chamber, and the cold water port is located on one side of the cold flow chamber; The central cavity is centrally disposed in the middle of the valve body. On the outer wall of the central cavity, two flow ports are symmetrically distributed on the left and right. Each of the flow ports is correspondingly connected to the heat flow cavity and the cold flow cavity. The valve sleeve is rotatably disposed in the central cavity through a sealing ring. On the side wall of the valve sleeve, two groups of diversion holes are symmetrically provided. Each group of diversion holes is composed of a plurality of valve holes, and the number of the valve holes is distributed in an arithmetic progression.

[0007] Furthermore, as a preference, a shaft tube is vertically and rotatably connected in the valve body. The lower end of the shaft tube is fixed to the valve sleeve. A driving motor is disposed at the upper end of the valve body. The output end of the driving motor is connected and driven to the shaft tube through the meshing of gears.

[0008] Furthermore, as a preference, a throttle sleeve is fixed to the lower end of the valve body. The central cavity is connected to the throttle sleeve. A throttle valve rod is slidably installed in the throttle sleeve. An electromagnetic controller is installed at the top of the valve body. The driving end of the electromagnetic controller is in linkage cooperation with the throttle valve rod through a connecting rod.

[0009] Furthermore, as a preference, the valve holes that are oppositely arranged in the two groups of diversion holes are symmetrically distributed on the outer peripheral wall of the valve sleeve in a central symmetry manner.

[0010] Furthermore, as a preference, a diversion sleeve is coaxially fixed above the mixing valve. Two liquid channels are parallelly opened in the diversion sleeve. A liquid delivery pipe is coaxially and hermetically connected between the diversion sleeve and the mixing valve. A first channel and a second channel are opened in the liquid delivery pipe. The lower part of the liquid delivery pipe is hermetically connected to a liquid guide shaft. The lower part of the liquid guide shaft is hermetically connected to a ring liquid seat. The lower part of the ring liquid seat is connected to the mixing valve through a plurality of straight channels. A sealing shaft is fixed at the center in the ring liquid seat. The lower end of the sealing shaft is hermetically butted against the mixing valve.

[0011] Furthermore, as a preference, the liquid delivery pipe is rotatably connected to the diversion sleeve. The upper ends of the first channel and the second channel are distributed left and right, and their lower ends are distributed coaxially. The first channel is located outside the second channel. When the first channel is connected to one of the liquid channels, the second channel is connected to the other liquid channel. A bypass channel is opened in the liquid guide shaft. The first channel is hermetically connected to the bypass channel. The second channel is hermetically connected to the sealing shaft.

[0012] Furthermore, as a preference, a ring wall is arranged in the mixing valve. A plurality of mixing holes are evenly opened on the outer peripheral wall of the ring wall. An inner pipe is also coaxially fixed in the mixing valve. A plurality of micro holes are evenly opened on the side wall of the inner pipe. Below the mixing valve, a plurality of drain holes are provided between the annular wall and the inner pipe.

[0013] Further, as a preference, a connecting rod is slidably connected to the center of the mixing valve. A pressurizing chamber is provided in the sealing shaft. A piston is slidably connected in the pressurizing chamber. The upper end of the connecting rod is fixed to the piston. A one-way passage is provided on one side of the pressurizing chamber. A pulse cylinder is fixed below the mixing valve. The telescopic end of the pulse cylinder is connected to the connecting rod.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: In the present invention, the first temperature control valve and the second temperature control valve adopted can work independently and are respectively responsible for adjusting the flow rates of high-temperature water and low-temperature water. During use, they can automatically adjust the water supply flow rate and water supply temperature according to different water use modes of the water dispenser. The mixing valve provided therein can fully mix the drinking water conveyed by the first temperature control valve and the second temperature control valve, so that the temperature of the drinking water accurately reaches the required temperature of the user, realizing the multi-stage temperature control water supply requirement with a small temperature error. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a schematic structural diagram of the first temperature control valve in the present invention; Figure 3 is a schematic structural diagram of the valve sleeve in the present invention; Figure 4 is a schematic structural diagram of the mixing valve in the present invention; Figure 5 is a schematic internal structure diagram of the sealing shaft in the present invention; In the figure: 1, hot water pipe; 11, first branch pipe; 12, sealing valve; 13, connecting pipe; 2, cold water pipe; 21, second branch pipe; 3, first temperature control valve; 31, second temperature control valve; 32, valve body; 33, heat flow chamber; 34, cold flow chamber; 35, flow port; 36, throttle sleeve; 37, throttle valve rod; 38, electromagnetic controller; 4, mixing valve; 41, guide sleeve; 42, liquid guide shaft; 43, annular liquid seat; 44, sealing shaft; 45, side channel; 46, annular wall; 47, inner pipe; 48, drain hole; 49, connecting rod; 410, pressurizing chamber; 411, one-way passage; 412, pulse cylinder; 5, valve sleeve; 51, valve hole; 52, shaft pipe; 53, drive motor; 6, liquid delivery pipe; 61, first channel; 62, second channel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] Please refer to Figures 1 - 5 , in the embodiment of the present invention, an intelligent mixing and temperature control valve device with controllable flow rate for a shared water dispenser includes: The hot water pipe 1 and the cold water pipe 2 have one end respectively connected to the hot water chamber and the cold water chamber of the water dispenser in correspondence. Two first branch pipes 11 are connected to the hot water pipe 1, and two second branch pipes 21 are connected to the cold water pipe 2; The first temperature control valve 3 and the second temperature control valve 31 are provided with a hot water port and a cold water port on both sides respectively. The hot water ports of the first temperature control valve 3 and the second temperature control valve 31 are connected to the first branch pipes 11, and the cold water ports of the first temperature control valve 3 and the second temperature control valve 31 are connected to the second branch pipes 21; Thus, it can be ensured that the hot water pipe 1 can normally supply hot water to the first temperature control valve 3 and the second temperature control valve 31, and the cold water pipe 2 can normally supply cold water to the first temperature control valve 3 and the second temperature control valve 31, so that hot and cold water are preliminarily mixed and proportioned in the first temperature control valve 3 and the second temperature control valve 31 respectively. This preliminary mixing helps to further optimize the outlet water temperature and flow rate in the subsequent adjustment process, thereby achieving a more accurate temperature control effect; Among them, the first temperature control valve 3 and the second temperature control valve 31 can also be used to separately supply high-temperature water and low-temperature water. They work together and achieve temperature control with an accuracy of ±1°C or even higher by dynamically adjusting the opening ratio; The mixing valve 4 has two flow channels inside, and the first temperature control valve 3 and the second temperature control valve 31 are respectively connected to the corresponding flow channels.

[0017] In this embodiment, drain ports are provided at the lower ends of the first temperature control valve 3 and the second temperature control valve 31. A branch pipe is connected to the outside of the drain port, and a sealing valve 12 is installed at the other end of the branch pipe. One side of the sealing valve 12 is connected to the mixing valve 4 through a connecting pipe 13, so that the drinking water preliminarily mixed and proportioned in the first temperature control valve 3 and the second temperature control valve 31 flows and mixes completely in the mixing valve 4, ensuring the uniformity of the drinking water temperature and preventing water temperature fluctuations caused by insufficient mixing.

[0018] As a preferred embodiment, the first temperature control valve 3 and the second temperature control valve 31 have the same composition structure; The first temperature control valve 3 includes: The valve body 32 has a heat flow chamber 33 and a cold flow chamber 34 symmetrically distributed at the center inside. The hot water port is located on one side of the heat flow chamber 33, and the cold water port is located on one side of the cold flow chamber 34; The central chamber is arranged in the middle of the valve body 32. Two flow ports 35 are symmetrically distributed on the left and right of the outer wall of the central chamber. Each flow port 35 is respectively connected to the heat flow chamber 33 and the cold flow chamber 34 in correspondence; Thus, the hot water and cold water entering the heat flow chamber 33 and the cold flow chamber 34 can enter the central chamber through the flow ports 35; The valve sleeve 5 is rotatably arranged in the central cavity through a sealing ring. Two groups of diversion holes are symmetrically formed on the side wall of the valve sleeve 5. Each group of the diversion holes is composed of a plurality of valve holes 51. The number of the valve holes 51 is in an arithmetic progression distribution, that is, the number of the valve holes at different outer wall positions is different. The valve holes 51 in the two groups of diversion holes can be respectively docked with the flow ports 35, so that under different rotation angle adjustments of the valve sleeve 5, different numbers of valve holes 51 can be docked with the flow ports 35.

[0019] In this embodiment, a shaft tube 52 is vertically and rotatably connected in the valve body 32. The lower end of the shaft tube 52 is fixed to the valve sleeve 5. A driving motor 53 is arranged at the upper end of the valve body 32. The output end of the driving motor 53 is connected and driven to the shaft tube 52 through the meshing of gears, so as to realize the rotation adjustment of the valve sleeve 5 at different angles.

[0020] In this embodiment, a throttling sleeve 36 is fixed at the lower end of the valve body 32. The central cavity is communicated with the throttling sleeve 36. A throttling valve stem 37 is slidably installed in the throttling sleeve 36. An electromagnetic controller 38 is installed at the top of the valve body 32. The driving end of the electromagnetic controller 38 is in linkage cooperation with the throttling valve stem 37 through a connecting rod, so that the throttling valve stem 37 can be slidably adjusted to control the opening degrees of the first temperature control valve 3 and the second temperature control valve 31, and facilitate the adjustment of their respective water supply and delivery ratios.

[0021] In this embodiment, the valve holes 51 arranged oppositely in the two groups of diversion holes are centrally symmetrically distributed on the outer wall of the valve sleeve 5. That is to say, for example, when a single valve hole 51 is docked with one of the flow ports 35, the corresponding cold water enters the valve sleeve 5 with a smaller flow rate. At this time, the other flow port 35 is docked with the largest number of valve holes 51 on the valve sleeve 5, so that the corresponding hot water enters the valve sleeve 5 with a larger flow rate. As the valve sleeve 5 rotates, the cold water flow rate gradually increases, and the hot water flow rate gradually decreases until the two flow rates are the same. As the valve sleeve 5 continues to rotate, the cold water flow rate is greater than the hot water flow rate until the cold water is delivered in the maximum flow state and the hot water is hardly delivered.

[0022] As a preferred embodiment, a diversion sleeve 41 is coaxially fixed above the mixing valve 4. Two liquid channels are parallelly formed in the diversion sleeve 41. The two liquid channels are respectively communicated with the connecting pipes 13. A liquid delivery pipe 6 is coaxially and sealingly connected between the diversion sleeve 41 and the mixing valve 4. A first channel 61 and a second channel 62 are formed in the liquid delivery pipe 6. A liquid delivery pipe 6 is hermetically connected to a liquid guide shaft 42 below it. The liquid guide shaft 42 is hermetically connected to a ring liquid seat 43 below it. The ring liquid seat 43 is connected to a mixing valve 4 through a plurality of straight channels below it. A sealing shaft 44 is fixedly centered inside the ring liquid seat 43, and the lower end of the sealing shaft 44 is hermetically butted against the mixing valve 4.

[0023] In this embodiment, the liquid delivery pipe 6 is rotatably connected to the diversion sleeve 41. The upper ends of the first channel 61 and the second channel 62 are distributed left and right, and their lower ends are coaxially distributed. The first channel 61 is located outside the second channel 62. When the first channel 61 is connected to one of the liquid channels, the second channel 62 is connected to the other liquid channel. During the rotation adjustment of the liquid delivery pipe 6, the first channel 61 and the second channel 62 can switch to connect to the corresponding liquid channels with each other. Thus, when the first temperature control valve 3 is connected to the first channel 61, the second temperature control valve 31 is connected to the second channel 62; when the first temperature control valve 3 is connected to the second channel 62, the second temperature control valve 31 is connected to the first channel 61. A side channel 45 is provided inside the liquid guide shaft 42, and the first channel 61 is always hermetically connected to the side channel 45; the second channel 62 is always hermetically connected to the sealing shaft 44.

[0024] In this embodiment, a ring wall 46 is provided inside the mixing valve 4. A plurality of mixing holes are evenly provided on the outer peripheral wall of the ring wall 46. An inner pipe 47 is coaxially fixed inside the mixing valve 4, and a plurality of micropores are evenly provided on the side wall of the inner pipe 47. A plurality of drain holes 48 are provided below the mixing valve 4 between the ring wall 46 and the inner pipe 47. With such a setting, for example, when the first temperature control valve 3 is connected to the first channel 61 and the second temperature control valve 31 is connected to the second channel 62, the drinking water in the first temperature control valve 3 enters the periphery of the ring wall 46, and it can quickly drain through the mixing holes on the ring wall 46. The drinking water in the second temperature control valve 31 enters the inner pipe 47 and drains through the micropores on its surface (the first temperature control valve 3 provides high-temperature hot water, and the second temperature control valve 31 provides medium and low-temperature cold water). The two are fully blended, enabling the cold and hot water to be fully mixed inside the valve sleeve 5. The relatively large mixing holes allow the hot water to flow quickly, while the micropores control the slow inflow of cold water, forming a mixing mode of "using hot water as the base flow and cold water as the auxiliary flow", ensuring the stability of the outlet water temperature, avoiding the direct impact mixing of cold and hot water, resulting in turbulence or temperature stratification, and causing large fluctuations in water temperature; with the rotation and switching of the liquid delivery pipe 6, the drinking water in the first temperature control valve 3 can enter the inner pipe 47, and the drinking water in the second temperature control valve 31 enters the periphery of the ring wall 46, thus forming "using cold water as the base flow and hot water as the auxiliary flow", so as to perform self-adjustment according to different water use modes of the water dispenser (such as direct drinking, making tea, making coffee, etc.).

[0025] In this embodiment, a connecting rod 49 is slidably connected to the center of the mixing valve 4. A pressurizing chamber 410 is provided in the sealing shaft 44. A piston is slidably connected in the pressurizing chamber 410. The upper end of the connecting rod 49 is fixed to the piston. A one-way passage 411 is provided on one side of the pressurizing chamber 410; A pulse cylinder 412 is fixed below the mixing valve 4. The telescopic end of the pulse cylinder 412 is connected to the connecting rod 49. The pulse cylinder 412 can drive the piston to slide at a high frequency during normal operation, so that the cold water or hot water flowing in the sealing shaft 44 enters the inner tube 47 in a pulsed manner through the one-way passage 411. This can prevent the cold water or hot water from flowing completely into the base flow prematurely when the cold and hot water are mixed due to a large difference in the mixing ratio, resulting in the subsequent supply water temperature being higher than the actual required temperature; at the same time, it can also further enhance the mixing and flowing effect of the cold and hot water.

[0026] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An intelligent mixing and temperature control valve device with controllable flow rate for a shared water dispenser, characterized in that, It includes: A hot water pipe (1) and a cold water pipe (2), one ends of which are respectively connected to the hot water chamber and the cold water chamber of the water dispenser in correspondence. Two first branch pipes (11) are connected to the hot water pipe (1), and two second branch pipes (21) are connected to the cold water pipe (2); A first temperature control valve (3) and a second temperature control valve (31), with a hot water port and a cold water port respectively arranged on both sides thereof. The hot water ports of the first temperature control valve (3) and the second temperature control valve (31) are connected to the first branch pipes (11), and the cold water ports of the first temperature control valve (3) and the second temperature control valve (31) are connected to the second branch pipes (21); A mixing valve (4), which has two flow channels inside. The first temperature control valve (3) and the second temperature control valve (31) are respectively connected to the respective flow channels in correspondence.

2. The intelligent mixing and temperature control valve device with controllable flow rate for a shared water dispenser according to claim 1, characterized in that: Drain ports are provided at the lower ends of the first temperature control valve (3) and the second temperature control valve (31). A branch pipe is connected to the outside of the drain port, and a sealing valve (12) is installed at the other end of the branch pipe. One side of the sealing valve (12) is connected to the mixing valve (4) through a connecting pipe (13).

3. The intelligent mixing and temperature control valve device with controllable flow rate for a shared water dispenser according to claim 1, characterized in that: The first temperature control valve (3) and the second temperature control valve (31) have the same composition structure; The first temperature control valve (3) includes: A valve body (32), inside which a heat flow chamber (33) and a cold flow chamber (34) are symmetrically distributed about the center. The hot water port is located on one side of the heat flow chamber (33), and the cold water port is located on one side of the cold flow chamber (34); A central chamber is centrally arranged in the middle of the valve body (32). Two flow ports (35) are symmetrically distributed on the left and right sides of the outer wall of the central chamber. Each of the flow ports (35) is respectively connected to the heat flow chamber (33) and the cold flow chamber (34) in correspondence; A valve sleeve (5) is rotatably arranged in the central chamber through a sealing ring. Two groups of guide holes are symmetrically opened on the side wall of the valve sleeve (5). Each group of the guide holes is composed of a plurality of valve holes (51), and the number of the valve holes (51) is in an arithmetic progression distribution.

4. The intelligent mixing and temperature control valve device with controllable flow rate for a shared water dispenser according to claim 3, characterized in that: A shaft tube (52) is vertically rotatably connected in the valve body (32). The lower end of the shaft tube (52) is fixed to the valve sleeve (5). A driving motor (53) is arranged at the upper end of the valve body (32), and the output end of the driving motor (53) is connected and driven to the shaft tube (52) through the meshing action of gears.

5. The intelligent mixing and temperature control valve device with controllable flow rate for a shared water dispenser according to claim 3, characterized in that: A throttling sleeve (36) is fixed at the lower end of the valve body (32). The central chamber is connected to the throttling sleeve (36), and a throttling valve rod (37) is slidably installed in the throttling sleeve (36); An electromagnetic controller (38) is installed at the top of the valve body (32), and the driving end of the electromagnetic controller (38) is in linkage cooperation with the throttling valve rod (37) through a connecting rod.

6. The intelligent mixing and temperature control valve device with controllable flow rate for a shared water dispenser according to claim 3, wherein: The valve holes (51) in the two groups of the guide holes that are oppositely arranged are symmetrically distributed about the center on the outer peripheral wall of the valve sleeve (5).

7. An intelligent mixing and temperature control valve device with controllable flow rate for a shared water dispenser, characterized in that: A guide sleeve (41) is coaxially fixed above the mixing valve (4). Two liquid channels are parallelly opened in the guide sleeve (41). A liquid delivery pipe (6) is coaxially and hermetically connected between the guide sleeve (41) and the mixing valve (4). A first channel (61) and a second channel (62) are opened in the liquid delivery pipe (6); A liquid delivery pipe (6) is hermetically connected to a liquid guide shaft (42) below it. The liquid guide shaft (42) is hermetically connected to a ring-shaped liquid seat (43) below it. The ring-shaped liquid seat (43) is connected to a mixing valve (4) through a plurality of straight channels below it. A sealing shaft (44) is fixedly centered in the ring-shaped liquid seat (43). The lower end of the sealing shaft (44) is hermetically docked with the mixing valve (4).

8. An intelligent mixing and temperature control valve device with controllable flow rate for a shared water dispenser, characterized in that: The liquid delivery pipe (6) is rotatably connected to the flow guide sleeve (41); The upper ends of the first channel (61) and the second channel (62) are distributed left and right, and their lower ends are coaxially distributed. The first channel (61) is located outside the second channel (62); When the first channel (61) is connected to one of the liquid channels, the second channel (62) is connected to the other liquid channel; A side channel (45) is formed in the liquid guide shaft (42). The first channel (61) is hermetically connected to the side channel (45); the second channel (62) is hermetically connected to the sealing shaft (44).

9. The intelligent mixing and temperature control valve device with controllable flow rate for a shared water dispenser according to claim 7, characterized in that: A ring wall (46) is arranged in the mixing valve (4). A plurality of mixing holes are evenly formed in the outer peripheral wall of the ring wall (46). An inner pipe (47) is coaxially fixed in the mixing valve (4). A plurality of micropores are evenly formed in the side wall of the inner pipe (47); A plurality of drain holes (48) are formed between the ring wall (46) and the inner pipe (47) below the mixing valve (4).

10. The intelligent mixing and temperature control valve device with controllable flow rate for a shared water dispenser according to claim 8, characterized in that: A connecting rod (49) is slidably connected to the center in the mixing valve (4). A pressure boosting chamber (410) is arranged in the sealing shaft (44). A piston is slidably connected in the pressure boosting chamber (410). The upper end of the connecting rod (49) is fixed to the piston. A one-way channel (411) is arranged on one side of the pressure boosting chamber (410); A pulse cylinder (412) is fixed below the mixing valve (4). The telescopic end of the pulse cylinder (412) is connected to the connecting rod (49).

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