Flow-adjustable water-saving faucet and adjusting method

Abstract

The invention discloses a flow-adjustable water-saving faucet and an adjusting method. The problem that in the prior art, unnecessary water resource waste is caused due to the fact that a faucet is habitually screwed to the maximum 90-degree water yield is solved. The flow-adjustable water-saving faucet comprises a valve seat and a valve element arranged in the valve seat, a valve rod is connected to the valve element, the end, extending out of the valve seat, of the valve rod is connected with a handle, an opening adjusting assembly is arranged between the valve rod and the handle, and the opening adjusting assembly adjusts the initial angle of the valve element relative to the valve seat; a 90-degree pressing adjusting assembly is arranged between the valve seat and the handle. The initial angle of the valve element relative to the valve seat is adjusted through the opening adjusting assembly; the opening adjusting assembly is mainly used for adjusting the flow of the faucet where the handle is located, the flow cannot be too small or too large, and the purpose of saving water is achieved under the condition that normal use is not affected. The handle located at the 90-degree position is limited by pressing the adjusting assembly by 90 degrees, and water resource waste caused by the maximum water yield of the faucet when the handle is screwed to 90 degrees due to inertia is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of faucets, in particular to a faucet with adjustable flow rate. Background Art

[0002] With the development of economy and the continuous increase of human activities, water resource problem has become one of the severe challenges facing the world. In my country, water resource problem is particularly prominent. At present, the total amount of water resources in my country is relatively insufficient, the temporal and spatial distribution is uneven, and the water quality is seriously polluted. China is facing severe problems such as water resource shortage, water environment pollution and water ecosystem degradation. Therefore, water conservation should be implemented in life.

[0003] At present, most faucets can release water by rotating the handle within the range of 0°-90°, which is simple in structure and easy to use. However, users often habitually rotate the handle to the maximum to maximize the water output, thus wasting water resources. Therefore, according to the user's habitual behavior, a water-saving faucet is designed, in which the water output does not reach the maximum when the handle is rotated 90°, but still meets the maximum water output requirement, thereby saving water resources to a certain extent. Summary of the invention

[0004] In view of the deficiencies in the above-mentioned background technology, the present invention proposes a water-saving faucet with adjustable flow and an adjustment method, which solves the problem in the prior art of habitually turning the faucet to 90° for maximum water output, resulting in unnecessary waste of water resources.

[0005] The technical solution of the present invention is achieved as follows: a water-saving faucet with adjustable flow rate comprises a valve seat and a valve core arranged in the valve seat, a valve stem is connected to the valve core, one end of the valve stem extending out of the valve seat is connected to a handle, an opening adjustment component is provided between the valve stem and the handle, and the opening adjustment component adjusts the initial angle of the valve core relative to the valve seat; a 90° push adjustment component is provided between the valve seat and the handle; the 90° push adjustment component is located at the 90° position of the valve seat, and limits the rotation of the handle when it is at the 90° position.

[0006] Further preferably, the valve seat includes an upper valve seat and a lower valve seat, which are sealed and connected to form a sealed flow channel cavity by bolts, and the valve core is located in the sealed flow channel cavity, the upper valve seat is connected to a water outlet pipe, and the lower valve seat is connected to a water inlet pipe, forming a complete sealed channel.

[0007] Further preferably, an upper flow channel is provided in the upper valve seat, a lower flow channel is provided in the lower valve seat, a central flow channel is provided in the valve core, the upper flow channel and the lower flow channel are located on the same central axis and form a fixed flow channel, and the opening adjustment component adjusts the angle between the central axis of the central flow channel and the central axis of the fixed flow channel through the valve stem to adjust the flow channel opening, thereby achieving the purpose of changing the size of the faucet opening at the 90° position.

[0008] Further preferably, the valve core includes a ball valve and a valve stem connected to the ball valve; the ball center of the ball valve is located on the axis of the central flow channel. The valve stem is rotated by a handle to change the angle between the axis of the central through hole of the ball valve and the axes of the water inlet and outlet, thereby achieving the purpose of changing the size of the 90° opening.

[0009] Further preferably, the upper valve seat is divided into an upper chamber and a lower chamber by a partition, an intermediate flow channel connecting the upper chamber and the lower chamber is provided at the center of the partition, the lower chamber, the intermediate flow channel and the upper chamber form an upper flow channel, and a limiting protrusion is provided on the inner wall of the lower chamber for contacting and cooperating with the ball valve.

[0010] Further preferably, an inner concave ring is provided on the inner side of the lower part of the upper valve seat, and an outer concave ring is provided on the outer side of the lower part of the upper valve seat; an inner convex ring is provided on the inner side of the upper part of the lower valve seat, and an outer convex ring is provided on the outer side of the upper part of the lower valve seat, the inner convex ring is sealed with the inner concave ring, and the outer convex ring is sealed with the outer concave ring.

[0011] Further preferably, an upper half seat body is provided on the outer wall of the upper valve seat, and a lower half seat body is provided on the outer wall of the lower valve seat, the upper half seat body and the lower half seat body cooperate to form a disc-shaped convex seat that cooperates with the handle, and a 0° limit block and a 135° limit block are provided on the disc-shaped convex seat, the 0° limit block limits the handle at the 0° position, and the 135° limit block limits the handle at the 135° position.

[0012] Further preferably, the 90° push-adjustment assembly is arranged at the 90° position of the disc-shaped boss; the 90° push-adjustment assembly includes a limit plate and a radial limit groove opened on the disc-shaped boss, the limit plate slides in the radial limit groove and a spring is provided between the limit plate and the radial limit groove, and under normal conditions, the outer side of the limit plate extends out of the disc-shaped boss to limit the circumferential rotation of the handle.

[0013] Further preferably, the handle includes a shell portion and a handle portion, two limit protrusions arranged at 90° are circumferentially provided in the shell portion, and the end of the valve stem extending out of the valve seat is connected to the shell portion by a fixing screw; the opening adjustment assembly includes an L-shaped adjusting rod and a limit groove arranged on the handle, one end of the L-shaped adjusting rod is fixed to the end of the valve stem extending out of the valve seat, and the other end extends outward through the limit groove.

[0014] A method for adjusting a water-saving faucet with adjustable flow rate, first, adjusting the initial angle of the valve core relative to the valve seat through the opening adjustment component, so that the water output of the faucet is between the minimum and maximum when the handle is at the 90° position; then, rotating the handle clockwise, the water output of the faucet gradually increases; when the handle is habitually screwed to the 90° position, due to the action of the 90° push-adjusting component, the water output of the faucet at this time fails to reach the maximum value, saving water; when there is a greater demand for water, by pressing the 90° push-adjusting component, the limit plate of the 90° push-adjusting component is pressed into the radial limit groove, and the handle can be rotated within the range of 90°-135°, and the faucet reaches the maximum water output in this process.

[0015] The beneficial effects of the present invention are as follows: the present invention adjusts the initial angle of the valve core relative to the valve seat through the opening adjustment component; the opening adjustment component is mainly used to adjust the flow of the faucet at the position where the handle is located, which cannot be too small or too large, and the purpose of saving water is achieved without affecting normal use. Moreover, the handle located at the 90° position is limited by the 90° press adjustment component to avoid the maximum water output of the faucet when the handle is turned to 90° due to inertia, causing water waste. When a large water flow is really needed, by pressing the 90° press adjustment component, the handle can be further rotated within the range of 90°-135°, so that the water output of the faucet is further increased to the maximum flow. The present invention uses the 90° press adjustment component to solve the problem of unnecessary water waste caused by habitually turning the faucet to the maximum water output at 90°; and it can be used to cultivate user habits and fundamentally improve the user's awareness of water saving. In addition, when the faucet of the present invention uses a large water flow, the user needs to increase the action, and the large water volume requires the user to press the 90° press adjustment component, thereby effectively improving the water use habit and achieving the purpose of saving water. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is the explosion schematic diagram of the present invention; Figure 3 This is a schematic diagram of the assembly state of the valve seat and the valve core of the present invention; Figure 4 It is a front view schematic diagram of the upper half seat body and the lower half seat body cooperating to form a disc-shaped convex seat; Figure 5It is a schematic diagram of the matching state of the valve core and the upper valve seat; Figure 6 It is a schematic diagram of the internal structure of the upper valve seat and the lower valve seat in the matching state; Figure 7 This is a schematic diagram of the handle; Figure 8 This is a schematic diagram of the structure when the 90° pressing adjustment component is in a downward pressing mode; Fig. 9 A schematic diagram of the internal structure of the 90° push adjustment component when the component is pushed downward; Fig.10 It is a schematic diagram of the connection between the opening adjustment component and the valve stem; Fig.11 Schematic diagram of the opening adjustment component.

[0018] In the figure: 1, lower valve seat, 1-1 lower flow channel; 2, valve core, 2-1 central flow channel; 3, upper valve seat, 3-1 upper flow channel, 3-2 partition, 3-3 middle flow channel; 4, outlet pipe; 5, handle, 5-1 shell part, 5-2 handle part; 6, 135° limit block; 7, bolt; 8, 0° limit block; 9, opening adjustment component, limit groove 9-1; 10, 90° push adjustment component, 10-1 limit plate; 11, valve stem; 12, threaded hole at the top of the valve stem; 13 , L-shaped adjusting rod; 14, limiting protrusion; 15, ball valve; 16, spring; 17, front spring fixing hole; 19, rear spring fixing hole; 20, radial limiting groove; 21, water outlet pipe interface; 22, outer concave ring; 23, inner concave ring; 24, outer convex ring; 25, sealing ring; 26, lower half seat body; 27, inner convex ring; 28, upper half seat body; 29, handle fixing screw; 30, handle groove; 31, limiting protrusion; 32, handle threaded hole cap; 33, water inlet pipe interface. DETAILED DESCRIPTION

[0019] 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.

[0020] In the description of the present invention, it should be understood that the terms "vertical", "lateral", "up", "down", "front", "back", "left", "right", "horizontal", "top", "bottom", "inside" and "outside" etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0021] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0022] like Figure 1 , 2 As shown, in embodiment 1, a flow-adjustable water-saving faucet comprises a valve seat and a valve core 2 arranged in the valve seat; the valve seat cooperates with the valve core to adjust the flow of the faucet. The valve core 2 is connected with a valve stem 11, and one end of the valve stem 11 extending out of the valve seat is connected with a handle 5, and the valve core is adjusted by manipulating the valve stem through the handle or the handle. An opening adjustment component 9 is provided between the valve stem 11 and the handle 5, and the opening adjustment component 9 adjusts the initial angle of the valve core 2 relative to the valve seat; the opening adjustment component 9 is mainly used to adjust the handle at the 90° position, and the flow of the faucet cannot be too small or too large, and the purpose of saving water is achieved without affecting normal use. In this embodiment, a 90° press adjustment component 10 is provided between the valve seat and the handle 5; the 90° press adjustment component 10 is located at the 90° position of the valve seat, and the rotation of the handle 5 when it is at the 90° position is limited. The 90° press adjustment component 10 limits the handle at the 90° position to avoid the maximum water output of the faucet when the handle is turned to 90° due to inertia, causing water waste. When a large water flow is really needed, by pressing the 90° push adjustment component 10, the handle can be further rotated within the range of 90°-135°, so that the water output of the faucet can be further increased to the maximum flow. That is, the present invention uses the 90° push adjustment component 10 to solve the problem of habitually turning the faucet to 90° for maximum water output, which causes unnecessary waste of water resources; and it can cultivate user habits and improve user water-saving awareness. When using this faucet with a large water flow, the user needs to increase the action, and the large water volume requires the user to press the 90° push adjustment component, so that the user can cultivate the habit of thinking when using the faucet.

[0023] like Figure 3 , 4As shown, the valve seat described in this embodiment includes an upper valve seat 3 and a lower valve seat 1, and the upper valve seat 3 and the lower valve seat 1 are sealed and connected to form a sealed flow channel cavity by bolts 7 to avoid leakage. The valve core 2 is located in the sealed flow channel cavity, the upper valve seat 3 is connected to the outlet pipe 4, and the lower valve seat 1 is connected to the inlet pipe 33. The main body of the lower valve seat 1 is a cylindrical connector with three sections of different diameters. The upper part has a smaller diameter and fits the lower part of the valve cavity. The middle part has the largest diameter and fits the countertop of the washbasin to support the entire faucet. The lower part has the smallest diameter and is provided with threads on the outside to facilitate connection with the water inlet pipe. The main body of the upper valve seat 3 is a cylinder, and its outer diameter is the same as the outer diameter of the upper part of the lower valve seat. When the faucet is used, water enters the lower valve seat through the inlet pipe, and then enters the outlet pipe through the valve core and the upper valve seat to complete the water discharge of the faucet; the cooperation between the upper valve seat 3, the lower valve seat 1 and the valve core can adjust the water output of the faucet.

[0024] In this embodiment, the upper valve seat 3 is provided with an upper flow channel 3-1, the lower valve seat 1 is provided with a lower flow channel 1-1, and the valve core 2 is provided with a central flow channel 2-1. The upper flow channel 3-1 and the lower flow channel 1-1 are located on the same central axis and form a fixed flow channel. The opening adjustment component 9 adjusts the angle between the central axis of the central flow channel 2-1 and the central axis of the fixed flow channel through the valve stem 11 to adjust the flow channel opening; the smaller the angle between the central axis of the central flow channel 2-1 and the central axis of the fixed flow channel, the larger the flow channel opening and the greater the water output of the faucet; the above-mentioned flow channel structure design facilitates the handle to rotate the valve core through the valve stem to realize convenient adjustment of the faucet flow.

[0025] like Figure 5 As shown, Example 2 is a water-saving faucet with adjustable flow, which is further optimized on the basis of Example 1. The valve core 2 in this embodiment includes a ball valve 15 and a valve stem 11 connected to the ball valve 15; the center of the ball valve 15 is located on the axis of the central flow channel 2-1; the diameter of the central flow channel 2-1 is slightly smaller than the diameter of the water inlet, and a first protrusion is provided on the ball valve 15 for connecting the valve stem 11; the first protrusion cannot exceed the range between the limiting protrusions 14, and a second protrusion is provided at the end of the valve stem, and a threaded hole 12 is provided on the upper end face of the second protrusion for fixing the handle. In the present embodiment, it is further preferred that the upper valve seat 3 is divided into an upper chamber and a lower chamber by a partition layer 3-2, and an intermediate flow channel 3-3 connecting the upper chamber and the lower chamber is provided at the center of the partition layer 3-2, and the lower chamber, the intermediate flow channel 3-3 and the upper chamber form an upper flow channel 3-1, and a limiting protrusion 14 contacting and cooperating with the ball valve 15 is provided on the inner wall of the lower chamber; the limiting protrusions are evenly distributed along the circumference of the inner wall of the lower chamber for limiting the ball valve.

[0026] like Figure 6As shown, in this embodiment, the lower inner side of the upper valve seat 3 is provided with an inner concave ring 23, and the lower outer side of the upper valve seat 3 is provided with an outer concave ring 22; the upper inner side of the lower valve seat 1 is provided with an inner convex ring 27, and the upper outer side of the lower valve seat 1 is provided with an outer convex ring 24, the inner convex ring 27 is sealed with the inner concave ring 23, a sealing gasket 25 is provided on the inner convex ring 27, and the outer convex ring 24 is sealed with the outer concave ring 22. Specifically, the top of the upper part of the lower valve seat 1 is a multi-ring structure, the outermost outer ring is protruding, the middle is a circular groove, the bottom of the groove is provided with an inner convex ring 27, the upper end face is the water inlet of the lower flow channel 1-1, the water inlet is matched with the ball valve 15 in an arc surface, and the side is provided with a first handle base, i.e., the lower half seat body 26, whose main body is a semi-cylindrical boss. The lower part of the upper valve seat 3 is a multi-ring structure, the outer ring is cut off, and the cutting depth is the same as the height from the bottom of the inner convex ring 27 to the outer convex ring 24. The circular structure is cut in the middle, the diameter is the same as the outer diameter of the inner convex ring 27, and the depth is the sum of the thickness of the inner convex ring 27 and the sealing gasket 25. Further cutting is formed to form a limiting protrusion 14 for limiting the ball valve. A single protrusion is a rectangular structure, and the distance between the end face and the center of the circle is half of the outer diameter of the ball valve 15. The end face and the root are chamfered respectively. The root rounding increases the structural bearing capacity and is used to fix the ball valve 15. The upper end is grooved to provide a water outlet pipe interface 21, and is provided with a thread, which is connected to the water outlet pipe 4, and a second handle base, i.e., the upper half seat body 28, is provided on the side.

[0027] In this embodiment, an upper half seat body 28 is provided on the outer wall of the upper valve seat 3, and a lower half seat body 26 is provided on the outer wall of the lower valve seat 1. The upper half seat body 28 and the lower half seat body 26 cooperate to form a disc-shaped boss that cooperates with the handle 5. The disc-shaped boss has a hole in the center for placing the valve stem 11. A 0° limit block 8 and a 135° limit block 6 are provided on the disc-shaped boss. The 0° limit block 8 limits the handle 5 at the 0° position, and the 135° limit block 6 limits the handle 5 at the 135° position. It should be pointed out that the 0° limit block 8 and the 135° limit block 6 can be a two-piece structure or a one-piece structure. Figure 4 As shown, when the 0° limit block 8 and the 135° limit block 6 are two-piece structures, the upper half body 28 is provided with a 0° limit block 8, and the lower half body 26 is provided with a 135° limit block 6. The 0° limit block 8 limits the handle 5 at the 0° position, and the 135° limit block 6 limits the handle 5 at the 135° position. Figure 8 As shown, when the 0° limit block 8 and the 135° limit block 6 adopt a whole block structure, the 0° limit block 8 and the 135° limit block 6 are double-flap structures, the outer end face angle of the two-flap limit blocks is 225°, the proximal end face angle is 60°, a threaded hole is set between the two proximal end faces, and the upper valve seat and the lower valve seat are fixed with bolts 7. The 0° limit block 8 and the 135° limit block 6 are connected to the disc-shaped boss through an annular protrusion to increase the structural bearing capacity. It should be noted that 90° and 135° are not fixed values, and the angle size can also be adjusted according to actual conditions.

[0028] In this embodiment, as preferred, Figure 8 As shown, the 90° push adjustment assembly 10 is arranged at the 90° position of the disc-shaped boss; the 90° push adjustment assembly 10 includes a limit plate 10-1 and a radial limit groove 20 provided on the disc-shaped boss, the limit plate 10-1 is slidably located in the radial limit groove 20, and a spring 16 is provided between the limit plate 10-1 and the radial limit groove 20. The limit plate 10-1 can be an L-shaped plate, the back of the limit plate 10-1 is provided with a front spring fixing hole 19, the bottom of the radial limit groove 20 is provided with a rear spring fixing hole 17, and the two ends of the spring are respectively located in the front spring fixing hole 19 and the rear spring fixing hole 17 to ensure the stability of the spring. The number of springs can be set to one or more as needed. Under normal conditions, the outer side of the limit plate 10-1 extends out of the disc-shaped boss to limit the circumferential rotation of the handle 5; when the limit plate is pressed, the spring contracts, the limit plate is away from the limit block on the handle, and the faucet can continue to rotate. That is, by pressing, the limit plate can be completely pressed into the radial limit groove 20, and the limit on the circumferential rotation of the handle 5 can be released. In actual use, the main body of the limit plate is a rectangular parallelepiped, and a small rectangular parallelepiped is cut out of one corner to avoid blocking and interfering with the handle 5, and the narrow end should exceed the outer shell of the handle 5. Under normal circumstances, the upper end surface of the limit plate is flush with the upper end surface of the 0° limit block and does not intersect with the handle 5. The spring is in a natural state, and the handle can only rotate 90° at this time. When a larger water output is required, press the limit plate 10-1 so that its upper end surface is flush with the lower end of the 0° limit block. The spring is in a compressed state, and the handle can be rotated 135° to obtain a larger water output. After a certain period of time, the spring automatically restores its natural length, so that the handle can only rotate 90°, avoiding forgetting to press and reducing water waste.

[0029] It should be noted that in the actual operation, the limit plate can be completely pressed into the radial limit groove 20 by pushing upward. Figure 3 Alternatively, the limiting plate may be completely pressed into the radial limiting groove 20 by pressing downward, that is, toward the inside of the disc-shaped boss. Figure 8 , 9 shown.

[0030] like Figure 7 As shown, in this embodiment, as a preferred embodiment, the handle 5 includes a casing portion 5-1 and a grip portion 5-2, and the casing portion 5-1 can be buckled on the disc-shaped boss; the shape of the handle 5 can be Figure 7 Other forms are also possible, such as Fig.11 As shown. Two limiting protrusions 31 arranged at 90° are provided in the circumferential direction of the housing portion 5-1. The limiting protrusions 31 can contact and cooperate with the 0° limiting block 8 and the 135° limiting block 6 to limit the position of the handle. The end of the valve stem 11 extending out of the valve seat is connected to the housing portion 5-1 through a fixing screw 29. Fig. 9 ,10 As shown, the opening adjustment component 9 includes an L-shaped adjustment rod 13 and a limit groove 9-1 arranged on the handle 5. The limit groove is arranged on the housing part. One end of the L-shaped adjustment rod 13 is fixed to the end of the valve stem 11 extending out of the valve seat, and the other end passes through the limit groove 9-1 and extends outward. The L-shaped adjustment rod 13 is fixed to the outside of the second protrusion of the end of the valve stem 11 extending out of the valve seat. It is a right-angled round rod, one end of which is fixed on the valve stem, and the other end is suspended and inserted into the limit groove. When the L-shaped adjustment rod is rotated, the valve stem rotates accordingly, thereby changing the angle between the axis of the ball valve through hole and the axis of the water inlet and outlet, so as to achieve the purpose of changing the opening size by 90°.

[0031] The installation process of the above-mentioned water-saving faucet is as follows: the lower valve seat 1 and the upper valve seat 3 include two sets of concave and convex structures inside and outside, which are interlocked to increase the tightness of the structure; the 90° press adjustment component 10 is installed in advance on the lower valve seat 1. In order to increase the sealing performance, a sealing ring 25 is installed between the two, and then the ball valve 15 is installed, and the valve stem is installed from the center hole of the base on one side of the upper valve seat 3, and the valve stem and the ball are connected, and the lower valve seat 1 and the upper valve seat 3 are further fitted, and then the bolt member 7 is installed to fix the lower valve seat 1 and the upper valve seat 3. Turn the L-shaped adjustment rod 13 to one end of the large notch of the limit groove 9-1, so that the axis of the through hole of the ball valve 15 coincides with the axis of the outlet and inlet, and a mark indicating "large" is attached to indicate the maximum flow, and then turn the adjustment rod to the other end of the large notch so that the two axes form a certain angle. Install the handle 5, make the handle groove 30 fit with the second protrusion on the upper end of the valve stem 11, turn the handle to make the handle and the axis direction of the water inlet and outlet consistent, install the fixing screw 29, and install the threaded hole cap 32; connect the outlet pipe 4 and the outlet pipe interface, put the assembled faucet on the sink platform, make the inlet pipe interface pass through the installation hole, and connect the inlet pipe. To adjust the opening size of the 90° position later, just remove the handle, turn the adjustment rod, adjust it to the appropriate position, and then install the handle. The above faucet is completed.

[0032] Embodiment 3, a method for adjusting a water-saving faucet with adjustable flow as described in Embodiment 2, first, adjusting the initial angle of the valve core 2 relative to the valve seat through the opening adjustment component 9, so that the water output of the faucet is between the minimum and maximum when the handle 5 is at the 90° position; that is, the opening size at the 90° position is at an appropriate opening; then, rotating the handle 5 clockwise, the water output of the faucet gradually increases; when the handle 5 is habitually screwed to the 90° position, due to the action of the 90° push adjustment component 10, the water output of the faucet at this time fails to reach the maximum value, avoiding unnecessary waste of water resources; when there is a greater demand for water, by pressing the 90° push adjustment component 10, the limit plate 10-1 of the 90° push adjustment component 10 is pressed into the radial limit groove 20, and the rotation restriction of the handle at the 90° position is released. At this time, the handle 5 can be rotated within the range of 90°-135°, and the faucet reaches the maximum water output in this process; the water-saving effect is improved from the habit.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A water-saving faucet with adjustable flow rate, comprising a valve seat and a valve core (2) arranged in the valve seat, characterized in that: The valve core (2) is connected to a valve stem (11); one end of the valve stem (11) extending out of the valve seat is connected to a handle (5); an opening adjustment component (9) is provided between the valve stem (11) and the handle (5); the opening adjustment component (9) adjusts the initial angle of the valve core (2) relative to the valve seat; a 90° push adjustment component (10) is provided between the valve seat and the handle (5); the 90° push adjustment component (10) is located at a 90° position of the valve seat, and limits the rotation of the handle (5) when it is at the 90° position.

2. The flow-adjustable water-saving faucet according to claim 1, characterized in that: The valve seat comprises an upper valve seat (3) and a lower valve seat (1), the upper valve seat (3) and the lower valve seat (1) being sealed and connected via bolts (7) to form a sealed flow channel cavity, the valve core (2) being located in the sealed flow channel cavity, the upper valve seat (3) being connected to a water outlet pipe (4), and the lower valve seat (1) being connected to a water inlet pipe (33).

3. The flow-adjustable water-saving faucet according to claim 2, characterized in that: An upper flow channel (3-1) is provided in the upper valve seat (3), a lower flow channel (1-1) is provided in the lower valve seat (1), and a central flow channel (2-1) is provided in the valve core (2). The upper flow channel (3-1) and the lower flow channel (1-1) are located on the same central axis and form a fixed flow channel. The opening adjustment component (9) adjusts the angle between the central axis of the central flow channel (2-1) and the central axis of the fixed flow channel through the valve stem (11) to adjust the flow channel opening.

4. The flow-adjustable water-saving faucet according to claim 3 is characterized in that: The valve core (2) comprises a spherical valve (15) and a valve stem (11) connected to the spherical valve (15); the center of the spherical valve (15) is located on the axis of the central flow channel (2-1).

5. The flow-adjustable water-saving faucet according to claim 4, characterized in that: The upper valve seat (3) is divided into an upper chamber and a lower chamber by a partition (3-2); an intermediate flow channel (3-3) connecting the upper chamber and the lower chamber is provided at the center of the partition (3-2); the lower chamber, the intermediate flow channel (3-3) and the upper chamber form an upper flow channel (3-1); and a limiting protrusion (14) contacting and cooperating with the ball valve (15) is provided on the inner wall of the lower chamber.

6. The flow-adjustable water-saving faucet according to any one of claims 2 to 5, characterized in that: An inner concave ring (23) is provided on the inner side of the lower part of the upper valve seat (3), and an outer concave ring (22) is provided on the outer side of the lower part of the upper valve seat (3); an inner convex ring (27) is provided on the inner side of the upper part of the lower valve seat (1), and an outer convex ring (24) is provided on the outer side of the upper part of the lower valve seat (1); the inner convex ring (27) is in sealing cooperation with the inner concave ring (23), and the outer convex ring (24) is in sealing cooperation with the outer concave ring (22).

7. The flow-adjustable water-saving faucet according to claim 6, characterized in that: An upper half seat body (28) is provided on the outer wall of the upper valve seat (3), and a lower half seat body (26) is provided on the outer wall of the lower valve seat (1). The upper half seat body (28) cooperates with the lower half seat body (26) to form a disc-shaped convex seat that cooperates with the handle (5). A 0° limit block (8) and a 135° limit block (6) are provided on the disc-shaped convex seat. The 0° limit block (8) limits the handle (5) at a 0° position, and the 135° limit block (6) limits the handle (5) at a 135° position.

8. The flow-adjustable water-saving faucet according to claim 7, characterized in that: The 90° push-adjusting assembly (10) is arranged at a 90° position of the disc-shaped convex seat; the 90° push-adjusting assembly (10) comprises a limiting plate (10-1) and a radial limiting groove (20) provided on the disc-shaped convex seat, the limiting plate (10-1) is slidably located in the radial limiting groove (20) and a spring (16) is provided between the limiting plate (10-1) and the radial limiting groove (20), and in a normal state, the outer side of the limiting plate (10-1) extends out of the disc-shaped convex seat to limit the circumferential rotation of the handle (5).

9. The flow-adjustable water-saving faucet according to claim 1, 6 or 8, characterized in that: The handle (5) comprises a sleeve portion (5-1) and a grip portion (5-2); two limiting protrusions (31) arranged at 90 degrees are arranged in the circumferential direction of the sleeve portion (5-1); one end of the valve stem (11) extending out of the valve seat is connected to the sleeve portion (5-1) via a fixing screw (29); the opening adjustment component (9) comprises an L-shaped adjustment rod (13) and a limiting groove (9-1) arranged on the handle (5); one end of the L-shaped adjustment rod (13) is fixed to one end of the valve stem (11) extending out of the valve seat, and the other end passes through the limiting groove (9-1) and extends outward.

10. A method for adjusting a water-saving faucet with adjustable flow rate as claimed in claim 9, characterized in that: First, the initial angle of the valve core (2) relative to the valve seat is adjusted by the opening adjustment component (9) so that the water flow of the faucet is between the minimum and maximum when the handle (5) is at the 90° position; Then, the handle (5) is rotated clockwise, and the water output of the faucet gradually increases; when the handle (5) is habitually turned to the 90° position, due to the effect of the 90° pressing adjustment component (10), the water output of the faucet does not reach the maximum value at this time, thereby saving water; When there is a greater demand for water, the 90° pressing adjustment component (10) is pressed to press the limiting plate (10-1) of the 90° pressing adjustment component (10) into the radial limiting groove (20). At this time, the handle (5) can be rotated within the range of 90°-135°, and the faucet reaches the maximum water output in this process.

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