Double-outlet water-saving faucet

Abstract

The invention relates to the technical field of faucet structures, and discloses a double-outlet water-saving faucet which comprises a tap water pipe, one end of the tap water pipe is connected with a primary filtering barrel, and the primary filtering barrel is used for filtering and collecting some solid particles in water; the top of the primary filtering barrel is connected with a water outlet pipe, and a water-saving mechanism is arranged at one end of the front surface of the water outlet pipe and used for automatically closing and cutting off water flow; an ultrafiltration membrane is arranged in the water outlet pipe and used for filtering bacteria, viruses and heavy metal, when the ball valve is in a closed state and the through hole in the valve element and the through hole in the valve shell are in a communicated state, tap water is squeezed out due to the pressure of the tap water, impurities intercepted on the surface of the ultrafiltration membrane can be washed away when the tap water passes through the ultrafiltration membrane, and therefore the water quality is improved. The problem that the filtering efficiency of an ultrafiltration membrane is reduced and the water yield of purified water is reduced due to blockage caused by too many intercepted impurities is solved.

Description

Technical Field

[0001] The invention relates to the technical field of faucet structures, in particular to a double-outlet water-saving faucet. Background Art

[0002] Currently, many faucets have a single water outlet. This means that if people want to use water that has been treated by a water treatment device, such as water purified by a water purifier, they need to use an additional faucet, which takes up a lot of space and is costly. Therefore, people hope that the faucet can have two water outlets, so that one water outlet can be used to output ordinary water, and the other water outlet can be used to output water that has been treated by a water treatment device.

[0003] Chinese patent publication number CN104896148A discloses "an environmentally friendly water-saving faucet with two water outlets", including a faucet body, a handle arranged on the faucet body, a ceramic valve core arranged in the faucet body and a jet valve connected to the ceramic valve core and located below the ceramic valve core, a first water outlet arranged on the faucet, a second water outlet arranged on the faucet body and connected to the jet valve, and also includes a faucet base, a valve core pressure cover and a decorative cup. The first water outlet is provided with a spray-type water-saving nozzle, and the second water outlet is provided with a delayed self-closing water-saving nozzle. This double-spout environmentally friendly water-saving faucet is highly efficient in saving water for hand washing. The average person washes hands about 15 times a day, 6 times before and after meals, 6 times for defecation and urination, and about 3 other times. For example, each hand washing can save 0.6L of water (using a 9L / min water-saving faucet to wash for 5 seconds, using 0.75L of water; using a 2L / min spray-type water-saving faucet to wash for 5 seconds, using 0.15L of water), which means 9L of water can be saved every day, 27L of water for a family of three, and 9.8 tons of water per year.

[0004] However, on the faucet used to discharge purified water, PP cotton is usually used to filter out the mud, oxidizing substances, and suspended solids in the water, and the reverse osmosis filter element can further filter out the bacteria, viruses, and heavy metals in the water, and finally pure water is obtained. However, due to the impurities in the raw water, after the water purifier has been used for a period of time, the impurities in the raw water will clog the primary filter element. In this case, the raw water cannot flow in and out of the filter element smoothly, resulting in the problem of reduced water output. Therefore, a double-outlet water-saving faucet is proposed to solve the above-mentioned problems. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the present invention provides a dual-outlet water-saving faucet, which solves the problem that impurities in the raw water may clog the primary filter element after the water purifier has been used for a period of time.

[0007] (II) Technical solution

[0008] To achieve the above object, the present invention provides the following technical solution: a double-outlet water-saving faucet, comprising a water pipe, one end of which is connected to a primary filter barrel for filtering and collecting some solid particles in water;

[0009] The top of the primary filter barrel is connected to a water outlet pipe, and one end of the front side of the water outlet pipe is provided with a water-saving mechanism for automatically closing and cutting off the water flow;

[0010] An ultrafiltration membrane is arranged inside the water outlet pipe to filter bacteria, viruses and heavy metals.

[0011] Preferably, a clean water pipe is connected to the back of the ultrafiltration membrane, and the clean water pipe penetrates the pipe wall of the outlet pipe and bends and extends toward the front. By arranging an ultrafiltration membrane inside the outlet pipe, the tap water in the outlet pipe can be filtered. The membrane has a specific pore size, allowing water and smaller molecules to pass through, while larger molecules, suspended matter, colloids, proteins, bacteria and macromolecular organic matter are retained on one side of the membrane, thereby achieving the purpose of purifying water quality. The water flow is squeezed by the internal pressure of the tap water itself, enters the ultrafiltration membrane, and is discharged into the clean water pipe to obtain clean water.

[0012] Preferably, a ball valve is connected to one end of the front side of the clean water pipe, and the clean water can be easily taken out by opening the ball valve. The ultrafiltration membrane is cylindrical, and the cylindrical shape has a larger filtration area, ensuring the water flow rate to ensure sufficient water output.

[0013] Preferably, the inner wall of the primary filter barrel is arranged tangent to the tap water pipe, PP cotton blocks are placed inside the primary filter barrel, and the inner wall of the primary filter barrel is connected with partitions at the upper and lower positions of the PP cotton blocks, respectively, and the partitions are used to intercept the PP cotton blocks to prevent them from following the water flow into the outlet pipe. By arranging the primary filter barrel and the tap water pipe in a tangent connection position relationship, a water vortex will be formed after the tap water enters the primary filter barrel, which will increase the retention time in the primary filter barrel. The water vortex will also cause the PP cotton blocks to roll inside the primary filter barrel, so that the tap water and the PP cotton blocks are fully in contact, so that the mud, oxidants and suspended solids in the tap water are adsorbed and collected by the PP cotton blocks.

[0014] Preferably, the edge or surface of the PP cotton block has protrusions or grooves to increase the turbulence of the water flow; and the water flow rate is between 7 and 19 liters per minute, and the corresponding filling rate φ of the PP cotton block (22) is set between 50% and 70%.

[0015] Preferably, a bottom cover is provided at the bottom of the primary filter barrel, and the bottom cover is connected to the outer wall of the primary filter barrel by a thread. When some heavier impurities in the tap water rotate with the tap water vortex, they will gradually sink and fall into the bottom cover for collection due to their own weight during the rotation, so as to facilitate centralized treatment at a later time.

[0016] Preferably, the water-saving mechanism comprises a valve housing, the valve housing is connected to one end of the water outlet pipe, a valve core is slidably connected to the inner wall of the valve housing, and through holes are provided at corresponding positions of the valve core and the valve housing.

[0017] Preferably, a third spring is connected to the position between the bottom of the valve core and the inner wall of the valve housing, the top of the valve core is connected to a pressure rod, and the top of the pressure rod is connected to a pressure sleeve. When the hand presses the pressure sleeve, the pressure rod will press the valve core downward, so that the valve core is aligned with the through hole on the valve housing, allowing water to flow, so as to facilitate the use of tap water, and when the water flows, due to the pressure of the tap water itself, the tap water is squeezed out, and when passing through the ultrafiltration membrane, the impurities intercepted on the surface of the ultrafiltration membrane will be flushed to avoid clogging due to excessive intercepted impurities, resulting in reduced filtration efficiency of the ultrafiltration membrane and reduced water output. When the hand no longer continues to press the pressure sleeve, the tension of the third spring will lift the valve core, so that the valve core and the through hole on the valve housing are staggered to cut off the water flow, so as to achieve the purpose of automatic closing and avoid the situation where the faucet is forgotten to be turned off.

[0018] Preferably, a delay component is provided on the top of the valve core, and the delay component includes a sealing ring, the conical surface of the inner wall of the sealing ring abuts against a first sealing plug, the top of the first sealing plug is connected to a first support ring, and a first spring is connected to the position between the first support ring and the first sealing plug. When the valve core is pressed downward, the water flow will squeeze the first sealing plug and compress the first spring, so that the water flow can flow to the top of the valve core to avoid excessive resistance when the valve core is pressed downward.

[0019] Preferably, a delay hole is provided on the inner wall of the first sealing plug, the conical surface of the inner wall of the delay hole abuts against the second sealing plug, the bottom of the first sealing plug is connected to a second support ring, and a second spring is connected to a position between the second support ring and the bottom of the first sealing plug. By providing the delay hole on the inner wall of the first sealing plug, when the valve core rises, the water flow will squeeze the second sealing plug and compress the second spring, so that the tap water above the valve core is discharged from the delay hole. Since the flow rate when the second sealing plug is separated from the inner wall of the delay hole is less than the flow rate when the first sealing plug is separated from the inner wall of the sealing ring, the time for complete closure can be slowed down to facilitate short-term water use such as washing hands.

[0020] Preferably, a water outlet is connected to the front side of the outer wall of the valve housing at the position of the through hole, and a bubbler is connected to the bottom of the water outlet. When water flows through the bubbler, the water and air flowing through it can be fully mixed, so that the water flow has a foaming effect. With the addition of air, the flushing force of water is greatly improved, thereby effectively reducing water consumption. A faucet equipped with a bubbler saves about 50% water than a faucet without a bubbler.

[0021] (III) Beneficial effects

[0022] Compared with the prior art, the present invention provides a double-outlet water-saving faucet, which has the following beneficial effects:

[0023] 1. For this double-outlet water-saving faucet, when the ball valve is in a closed state and the through holes on the valve core and the valve housing are in a connected state, the tap water is squeezed out due to the pressure of the tap water itself. When passing through the ultrafiltration membrane, the impurities intercepted on the surface of the ultrafiltration membrane will be flushed to achieve the effect of self-cleaning the ultrafiltration membrane, avoiding blockage caused by excessive intercepted impurities, resulting in reduced filtration efficiency of the ultrafiltration membrane and reduced water output.

[0024] 2. The double-outlet water-saving faucet sets the primary filter barrel and the water pipe in a tangent connection position relationship, so that after the tap water enters the primary filter barrel, a water vortex will be formed, which will increase the retention time in the primary filter barrel. The water vortex will also cause the PP cotton cubes to roll inside the primary filter barrel, so that the tap water is in full contact with the PP cotton cubes, so that the mud, oxidants and suspended solids in the tap water are adsorbed and collected by the PP cotton cubes. When some heavier impurities in the tap water rotate with the tap water vortex, they will gradually sink and fall into the bottom cover for collection during the rotation due to their own heavy weight, so as to facilitate centralized treatment later.

[0025] 3. For the double-outlet water-saving faucet, when the hand presses the compression sleeve, the pressure rod will press the valve core downward, so that the valve core is aligned with the through hole on the valve shell, so that the water flows, so as to facilitate the use of tap water. When the water flows, when the hand no longer continues to press the compression sleeve, the tension of the third spring will lift the valve core, so that the valve core and the through hole on the valve shell are staggered to cut off the water flow, so as to achieve the purpose of automatic closing, and avoid the situation of forgetting to turn off the faucet. When the water flows through the bubbler, the flowing water and air can be fully mixed, so that the water flow has a foaming effect. With the addition of air, the flushing force of the water is greatly improved, thereby effectively reducing the water consumption. The faucet equipped with the bubbler saves about 50% water than the faucet without the bubbler. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a partial cross-sectional view of the present invention;

[0028] Figure 3 It is a structural schematic diagram of the water outlet pipe in the present invention;

[0029] Figure 4 It is a partial cross-sectional view of the primary filter barrel in the present invention;

[0030] Figure 5 It is a partial cross-sectional view of the water-saving mechanism in the present invention;

[0031] Figure 6It is a structural schematic diagram of the valve core in the present invention;

[0032] Figure 7 It is a partial cross-sectional view of the delay component in the present invention.

[0033] In the figure: 1. tap water pipe; 2. primary filter barrel; 21. separator; 22. PP cotton block; 23. bottom cover; 3. outlet pipe; 31. outlet; 32. bubbler; 4. water purification pipe; 41. ball valve; 42. ultrafiltration membrane; 5. water-saving mechanism; 50. third spring; 51. valve housing; 52. valve core; 53. through hole; 54. pressing sleeve; 55. pressure rod; 56. delay assembly; 561. sealing ring; 562. first sealing plug; 563. first support ring; 564. first spring; 5620. delay hole; 5621. second sealing plug; 5622. second support ring; 5623. second spring. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example 1

[0036] like Figure 1 , Figure 2 , Figure 3 As shown, a double-outlet water-saving faucet comprises a water pipe 1, one end of which is connected to a primary filter barrel 2 for filtering and collecting some solid particles in the water, a water outlet pipe 3 is connected to the top of the primary filter barrel 2, a water-saving mechanism 5 is arranged at one end of the front of the water outlet pipe 3 for automatically closing and cutting off the water flow, an ultrafiltration membrane 42 is arranged inside the water outlet pipe 3 for filtering bacteria, viruses and heavy metals, a clean water pipe 4 is connected to the back of the ultrafiltration membrane 42, the clean water pipe 4 penetrates the pipe wall of the water outlet pipe 3 and bends and extends toward the front, and by arranging the ultrafiltration membrane 42 inside the water outlet pipe 3, the water in the water outlet pipe 3 can be cleaned. The incoming water is filtered. This membrane has a specific pore size, allowing water and smaller molecules to pass through, while larger molecules, suspended matter, colloids, proteins, bacteria and macromolecular organic matter are retained on one side of the membrane, thereby achieving the purpose of purifying the water quality. The water flow is squeezed by the internal pressure of the tap water itself, enters the ultrafiltration membrane 42, and is discharged into the clean water pipe 4 to obtain clean water. A ball valve 41 is connected to one end of the front side of the clean water pipe 4. The ball valve 41 is opened to facilitate the use of clean water. The ultrafiltration membrane 42 is cylindrical. The cylindrical shape has a larger filtration area, which ensures the water flow rate to ensure sufficient water output.

[0037] In this embodiment, by setting an ultrafiltration membrane 42 inside the water outlet pipe 3, when the ball valve 41 is opened, the tap water in the water outlet pipe 3 can be filtered. This membrane has a specific pore size, allowing water and smaller molecules to pass through, while larger molecules, suspended matter, colloids, proteins, bacteria and macromolecular organic matter are retained on one side of the membrane, thereby achieving the purpose of purifying water quality. The water flow is squeezed by the internal pressure of the tap water itself, enters the ultrafiltration membrane 42, and is discharged into the clean water pipe 4 to obtain clean water.

[0038] Example 2

[0039] like Figure 2 , Figure 4 As shown, the inner wall of the primary filter barrel 2 is arranged tangent to the water pipe 1, a PP cotton block 22 is placed inside the primary filter barrel 2, and the inner wall of the primary filter barrel 2 is connected with a partition 21 at the upper and lower positions of the PP cotton block 22, respectively, and the partition 21 is used to intercept the PP cotton block 22 to prevent it from following the water flow into the water outlet pipe 3. By setting the primary filter barrel 2 and the water pipe 1 in a tangent connection position relationship, a water vortex will be formed after the tap water enters the primary filter barrel 2, which will increase the retention time inside the primary filter barrel 2, and the water vortex will also The PP cotton block 22 is made to roll inside the primary filter barrel 2, so that the PP cotton block 22 is fully in contact with the tap water, so that the mud, oxidizing substances and suspended solids in the tap water are adsorbed and collected by the PP cotton block 22. A bottom cover 23 is provided at the bottom of the primary filter barrel 2, and the bottom cover 23 is connected to the outer wall of the primary filter barrel 2 through a thread. When some heavier impurities in the tap water rotate with the tap water vortex, they will gradually sink and fall into the bottom cover 23 during the rotation due to their own heavy weight for collection, so as to facilitate centralized treatment later.

[0040] In this embodiment, by setting the primary filter barrel 2 and the water pipe 1 in a tangential connection position relationship, a water vortex will be formed after the tap water enters the primary filter barrel 2, which will increase the retention time inside the primary filter barrel 2. The water vortex will also cause the PP cotton block 22 to roll inside the primary filter barrel 2, so that the tap water is fully in contact with the PP cotton block 22, so that the silt, oxidizing substances, and suspended solids in the tap water are adsorbed and collected by the PP cotton block 22, and some heavier impurities in the tap water will gradually sink and fall into the bottom cover 23 during the rotation due to their own heavy weight when rotating with the tap water vortex, so as to facilitate centralized processing later. As a further improvement, in order to enable the PP cotton block 22 to roll quickly inside the primary filter barrel 2, it is more preferred that protrusions or grooves can be added to the edge or surface of the PP cotton block 22 to increase the turbulence of the water flow. In one embodiment, the protrusion or groove is set at the edge of the PP cotton block 22, and presents a spiral structure in the same direction. This type of spiral structure is consistent with the rotation direction of the tap water vortex, thereby greatly increasing its rolling speed.

[0041] In other embodiments, as a further improvement, in order to optimize the tumbling of the PP cotton block 22, the present invention further optimizes the volume V of the primary filter barrel 2. 桶 and the filling rate φ of the PP cotton block 22, wherein the volume V of the primary filter barrel 2 桶 And the filling rate φ of the PP cotton block 22 satisfies:

[0042] Among them, V 方块 is the volume of the PP cotton block 22, and n is the number of the PP cotton blocks 22.

[0043] In order to achieve better tumbling, it is necessary to find a suitable filling rate φ so that the water flow of the PP cotton block 22 under the force F of the water 水 Greater than the friction force F between the PP cotton blocks 22 摩擦 and the gravity F of the PP cotton block 22 重力 ,Right now:

[0044] F 水 >F 摩擦 +F 重力 .

[0045] The PP cotton block 22 is subjected to the force F of water. 水 It can be calculated using the following formula:

[0046] Wherein, p is the density of water, v is the water velocity, A is the headwater area of ​​the PP cotton block 22, C d is the drag coefficient.

[0047] The friction force between the PP cotton blocks 22 can be calculated using the following formula:

[0048] F 摩擦 =μN, μ is the friction coefficient, and N is the positive pressure between the PP cotton blocks 22.

[0049] The gravity of the PP cotton block 22 can be calculated using the following formula:

[0050] F 重力 =mg, wherein m is the weight of the PP cotton block 22.

[0051] By experimentally testing or simulating different filling rates φ and other conditions such as water flow, the optimal filling rate range can be determined to achieve better tumbling and good adsorption of the PP cotton cubes in the primary filter barrel.

[0052] Specifically, the water flow rate of a normal faucet is usually between 7 and 19 liters per minute (L / min), and the filling rate φ can be set between 50% and 70%. In one embodiment, the water flow rate of a normal faucet is usually between 7 and 19 liters per minute (L / min), and the filling rate φ is set at about 65%.

[0053] Example 3

[0054] like Figure 2 , Figure 5 , Figure 6 , Figure 7As shown, the water-saving mechanism 5 includes a valve housing 51, which is connected to one end of the water outlet pipe 3. A valve core 52 is slidably connected to the inner wall of the valve housing 51, and through holes 53 are provided at corresponding positions of the valve core 52 and the valve housing 51. A third spring 50 is connected to the position between the bottom of the valve core 52 and the inner wall of the valve housing 51. A pressure rod 55 is connected to the top of the valve core 52, and a pressure sleeve 54 is connected to the top of the pressure rod 55. When the pressure sleeve 54 is pressed by hand, the pressure rod 55 will press the valve core 52 downward, so that the valve core 52 is aligned with the through hole 53 on the valve housing 51, so that water flows, so as to facilitate the use of tap water. When the water flows, due to the pressure of the tap water itself, the tap water is squeezed out, and when passing through the ultrafiltration membrane 42, the impurities intercepted on the surface of the ultrafiltration membrane 42 will be removed. When the hand stops pressing the pressing sleeve 54, the tension of the third spring 50 will lift the valve core 52, so that the valve core 52 and the through hole 53 on the valve housing 51 are staggered to cut off the water flow, so as to achieve the purpose of automatic closing and avoid the situation of forgetting to turn off the faucet. A delay component 56 is provided on the top of the valve core 52, and the delay component 56 includes a sealing ring 561, and the conical surface of the inner wall of the sealing ring 561 abuts against a first sealing plug 562, and the top of the first sealing plug 562 is connected to a first support ring 563, and the position between the first support ring 563 and the first sealing plug 562 is connected to a first spring 564. When the valve core 52 is pressed down, the water flow will squeeze the first sealing plug 562 and compress the first spring 564, so that the water flow can flow to the top of the valve core 52 to avoid excessive resistance when the valve core 52 is pressed down. The inner wall of the first sealing plug 562 is provided with a delay hole 5620, and the inner wall conical surface of the delay hole 5620 abuts against the second sealing plug 5621. The bottom of the first sealing plug 562 is connected to a second support ring 5622, and the position between the second support ring 5622 and the bottom of the first sealing plug 562 is connected to a second spring 5623. By providing the delay hole 5620 on the inner wall of the first sealing plug 562, the water flow will squeeze the second sealing plug 5621 and compress the second spring 5623 when the valve core 52 rises, so that the valve core 52 The tap water from above is discharged from the delay hole 5620. Since the flow rate when the second sealing plug 5621 is separated from the inner wall of the delay hole 5620 is less than the flow rate when the first sealing plug 562 is separated from the inner wall of the sealing ring 561, the time of complete closure can be slowed down to facilitate short-term water use such as washing hands. The front side of the outer wall of the valve shell 51 is connected to the position of the through hole 53 with a water outlet 31, and the bottom of the water outlet 31 is connected to a bubbler 32. When the water flows through the bubbler 32, the flowing water and air can be fully mixed, so that the water flow has a foaming effect. With the addition of air, the flushing force of the water is greatly improved, thereby effectively reducing the water consumption. A faucet equipped with a bubbler 32 saves about 50% water than a faucet without a bubbler 32.

[0055] When the hand stops pressing the pressing sleeve 54, the tension of the third spring 50 will lift the valve core 52, so that the valve core 52 and the through hole 53 on the valve housing 51 are staggered to cut off the water flow, so as to achieve the purpose of automatic closing, and avoid the situation of forgetting to turn off the faucet, and when the valve core 52 is pressed down, the water flow will squeeze the first sealing plug 562 and compress the first spring 564, so that the faucet 562 is closed. The water flow can flow to the top of the valve core 52 to avoid excessive resistance when the valve core 52 is pressed down. By opening the delay hole 5620 on the inner wall of the first sealing plug 562, when the valve core 52 rises, the water flow will squeeze the second sealing plug 5621 and compress the second spring 5623, so that the tap water above the valve core 52 is discharged from the delay hole 5620. Since the flow rate when the second sealing plug 5621 is separated from the inner wall of the delay hole 5620 is less than the flow rate when the first sealing plug 562 is separated from the inner wall of the sealing ring 561, the time for complete closure can be slowed down. When the water flows through the bubbler 32, the flowing water and air can be fully mixed, so that the water flow has a foaming effect. With the addition of air, the flushing force of the water is greatly improved, thereby effectively reducing the water consumption. The faucet equipped with the bubbler 32 saves about 50% water than the faucet without the bubbler 32.

[0056] How it works

[0057] In summary, when the double-outlet water-saving faucet needs to take clean water, the ultrafiltration membrane 42 is arranged inside the water outlet pipe 3. When the ball valve 41 is opened, the tap water in the water outlet pipe 3 can be filtered. This membrane has a specific pore size, allowing water and smaller molecules to pass through, while larger molecules, suspended matter, colloids, proteins, bacteria and macromolecular organic matter are retained on one side of the membrane, thereby achieving the purpose of purifying water quality. The water flow is squeezed by the internal pressure of the tap water itself, enters the ultrafiltration membrane 42, and is discharged into the clean water pipe 4 to obtain clean water;

[0058] When tap water is needed, the pressure sleeve 54 is pressed by the hand, and the pressure rod 55 will press the valve core 52 downward, so that the valve core 52 is aligned with the through hole 53 on the valve housing 51, so that water flows, so as to facilitate the use of tap water. When the water flows, due to the pressure of the tap water itself, the tap water is squeezed out, and when passing through the ultrafiltration membrane 42, the impurities intercepted on the surface of the ultrafiltration membrane 42 will be washed to avoid clogging due to excessive intercepted impurities, resulting in reduced filtration efficiency of the ultrafiltration membrane 42 and reduced water output of purified water. When the hand no longer continues to press the pressure sleeve 54, the tension of the third spring 50 will lift the valve core 52, so that the valve core 52 and the through hole 53 on the valve housing 51 are staggered to cut off the water flow, so as to achieve the purpose of automatic closing, and avoid the situation of forgetting to turn off the faucet. When the valve core 52 is pressed down, the water flow will squeeze the first sealing plug 562 and compress the first spring 564, so that The water flow can flow to the top of the valve core 52 to avoid excessive resistance when the valve core 52 is pressed down. By opening the delay hole 5620 on the inner wall of the first sealing plug 562, the water flow will squeeze the second sealing plug 5621 and compress the second spring 5623 when the valve core 52 rises, so that the tap water above the valve core 52 is discharged from the delay hole 5620. Since the flow rate when the second sealing plug 5621 is separated from the inner wall of the delay hole 5620 is less than the flow rate when the first sealing plug 562 is separated from the inner wall of the sealing ring 561, the time of complete closure can be slowed down. When the water flows through the bubbler 32, the flowing water and air can be fully mixed, so that the water flow has a foaming effect. With the addition of air, the flushing force of the water is greatly improved, thereby effectively reducing the water consumption. The faucet equipped with the bubbler 32 saves about 50% of water compared with the faucet without the bubbler 32.

[0059] No matter whether purified water or tap water is used, the tap water will enter the primary filter barrel 2 before entering the water outlet pipe 3. Since the primary filter barrel 2 and the tap water pipe 1 are arranged in a tangent connection position relationship, a water vortex will be formed after the tap water enters the primary filter barrel 2, which will increase the retention time in the primary filter barrel 2. The water vortex will also cause the PP cotton block 22 to roll inside the primary filter barrel 2, so that the tap water and the PP cotton block 22 are fully in contact, so that the mud, oxidizing substances and suspended solids in the tap water are adsorbed and collected by the PP cotton block 22. Moreover, when some heavier impurities in the tap water rotate with the tap water vortex, they will gradually sink and fall into the bottom cover 23 for collection during the rotation due to their own heavy weight, so as to facilitate centralized treatment later.

[0060] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

Claims

1. A double-outlet water-saving faucet, comprising a water pipe (1), characterized in that: One end of the water pipe (1) is connected to a primary filter barrel (2) for filtering and collecting some solid particles in the water; The top of the primary filter barrel (2) is connected to a water outlet pipe (3), and a water-saving mechanism (5) is provided at one end of the front side of the water outlet pipe (3) for automatically closing and cutting off the water flow; An ultrafiltration membrane (42) is arranged inside the water outlet pipe (3) for filtering bacteria, viruses and heavy metals.

2. A double-outlet water-saving faucet according to claim 1, characterized in that: The back side of the ultrafiltration membrane (42) is connected to a clean water pipe (4), and the clean water pipe (4) penetrates the pipe wall of the water outlet pipe (3) and bends and extends toward the front side.

3. A double-outlet water-saving faucet according to claim 2, characterized in that: A ball valve (41) is connected to one front end of the water purification pipe (4), and the ultrafiltration membrane (42) is cylindrical.

4. The double-outlet water-saving faucet according to claim 1, characterized in that: The inner wall of the primary filter barrel (2) is arranged tangent to the water pipe (1), a PP cotton block (22) is placed inside the primary filter barrel (2), and the inner wall of the primary filter barrel (2) is connected to a partition net (21) at positions above and below the PP cotton block (22), and the edge or surface of the PP cotton block (22) is provided with protrusions or grooves to increase the turbulence of the water flow.

5. The double-outlet water-saving faucet according to claim 4 is characterized in that: The water flow rate is between 7 and 19 liters per minute, and the filling rate φ of the PP cotton block (22) is set between 50% and 70%.

6. The double-outlet water-saving faucet according to claim 1, characterized in that: The water-saving mechanism (5) comprises a valve housing (51), the valve housing (51) being connected to one end of the water outlet pipe (3), a valve core (52) being slidably connected to the inner wall of the valve housing (51), and through holes (53) are provided at corresponding positions of the valve core (52) and the valve housing (51).

7. A double-outlet water-saving faucet according to claim 6, characterized in that: A third spring (50) is connected between the bottom of the valve core (52) and the inner wall of the valve housing (51), a pressure rod (55) is connected to the top of the valve core (52), and a pressure sleeve (54) is connected to the top of the pressure rod (55).

8. The double-outlet water-saving faucet according to claim 7, characterized in that: A delay component (56) is provided at the top of the valve core (52), and the delay component (56) includes a sealing ring (561). The conical surface of the inner wall of the sealing ring (561) abuts against a first sealing plug (562). The top of the first sealing plug (562) is connected to a first supporting ring (563), and a first spring (564) is connected between the first supporting ring (563) and the first sealing plug (562).

9. The double-outlet water-saving faucet according to claim 8, characterized in that: The inner wall of the first sealing plug (562) is provided with a delay hole (5620), the inner wall conical surface of the delay hole (5620) is abutted against the second sealing plug (5621), the bottom of the first sealing plug (562) is connected to a second support ring (5622), and the position between the second support ring (5622) and the bottom of the first sealing plug (562) is connected to a second spring (5623).

10. The double-outlet water-saving faucet according to claim 6, characterized in that: A water outlet (31) is connected to the front side of the outer wall of the valve housing (51) at the position of the through hole (53), and a bubbler (32) is connected to the bottom of the water outlet (31).

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