Water-saving faucet switch

Abstract

The utility model discloses a water-saving faucet switch. Comprising a valve body mounting shell used for being fixedly connected with a faucet body, a valve element mechanism inserted in the valve body mounting shell and capable of adjusting the water outlet flow, and a connecting base detachably connected to the opening end of the valve body mounting shell and capable of pressing the valve element mechanism in the valve body mounting shell. The handle mechanism is fixedly arranged at the top of the valve element mechanism and movably connected to the outer side of the connecting base; and the adjustable limiting mechanism can be used for limiting the handle mechanism from moving to the large water outlet position or releasing the limiting of the handle mechanism from moving to the large water outlet position. The water faucet is simple in structure, convenient to use, low in manufacturing cost and high in practicability, a user can be prevented from directly turning on a water faucet switch to a position where a large amount of water is discharged when the large amount of water is not needed, and waste of water resources can be effectively reduced. The water outlet adjusting device is suitable for being installed on a water faucet body to achieve the effect of adjusting the water outlet amount of the water faucet.

Description

Technical Field

[0001] The utility model relates to a switch for controlling water output, in particular to a water-saving faucet switch. Background Art

[0002] A faucet is a device installed at the water outlet of a water pipe to control the outflow or termination of water flow. It makes it convenient for people to use water and brings great convenience to people's lives. Therefore, it is widely used in daily home life and public places.

[0003] The existing faucet generally includes a faucet body and a faucet switch fixed on the faucet body, wherein the faucet switch is used to adjust the water output of the faucet. When using the existing faucet switch to adjust the water output of the faucet, it is necessary to rely on people's subjective feelings to adjust, which makes it difficult to control the water output of the faucet. In actual use, the faucet switch is usually directly opened to the position where the water output is the largest, which will cause a huge waste of water resources. Summary of the invention

[0004] In order to solve the above deficiencies in the prior art, the utility model aims to provide a water-saving faucet switch to achieve the purpose of saving water.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a water-saving faucet switch, including a valve body mounting shell for fixedly connecting to the faucet body, a valve core mechanism inserted in the valve body mounting shell and capable of adjusting the water flow rate, a connecting seat detachably connected to the open end of the valve body mounting shell and capable of pressing the valve core mechanism in the valve body mounting shell, a handle mechanism fixed on the top of the valve core mechanism and movably connected to the outside of the connecting seat, and an adjustable limit mechanism that can be used to limit the handle mechanism from moving to a high water outlet position or to release the restriction on the handle mechanism from moving to a high water outlet position.

[0006] As a limitation of the present invention, the valve core mechanism includes a valve core mounting shell and a valve base, a static valve plate, a movable valve plate, a movable valve plate connecting seat and a valve stem which are sequentially assembled in the valve core mounting shell, wherein the bottom of the valve stem is inserted into the movable valve plate connecting seat and the position on the valve stem located above the movable valve plate connecting seat is rotatably connected to the valve core mounting shell through the valve stem mounting seat; the valve base, the static valve plate and the movable valve plate are penetrated by a water inlet hole assembly for allowing water to flow into the valve core mechanism and a water outlet hole assembly for allowing water to flow out of the valve core mechanism; the first water flow regulating groove and the second water flow regulating groove are respectively provided on the surfaces where the static valve plate and the movable valve plate are in contact with each other, and the movable valve plate can move in contact with the static valve plate and cooperate with each other through the first water flow regulating groove and the second water flow regulating groove to achieve regulation of the water outlet flow rate.

[0007] As another limitation of the present utility model, the adjustable limiting mechanism includes a support fixed on the outside of the valve body mounting shell, a base fixed on the support, a vertical axis inserted on the base, a spring sleeved on the vertical axis, a connecting rod fixed to the upper end of the spring and slidably connected to the base, a baffle fixed on the connecting rod and abutting the outside of the base, a limit handle fixed on the baffle for limiting the handle mechanism from shifting to the high water position, and a sealing cover detachably connected to the top of the base.

[0008] As a further limitation of the present invention, the handle mechanism includes a movable seat fixedly mounted on the top of the valve stem and a handle fixedly mounted on the top of the movable seat, and the movable seat is movably connected to the connecting seat.

[0009] As a further limitation of the present invention, a flexible rubber layer is provided on the handle.

[0010] Due to the adoption of the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0011] (1) The utility model adopts a structural form that combines a valve core mechanism, a connecting seat, a handle mechanism and an adjustable limit mechanism. The valve core mechanism is controlled by operating the handle mechanism to adjust the water output of the faucet. When the user does not need to use full water, the adjustable limit mechanism can be limited to the position where the handle mechanism moves to the full water output position, which can prevent the user from directly turning on the faucet switch to the full water output position, effectively avoiding the waste of water resources. Moreover, when the user needs to use full water, the handle mechanism can be released by adjusting the position of the adjustable limit mechanism, thereby meeting the user's need to use full water.

[0012] (2) The valve core mechanism of the utility model adopts a structure that combines a valve core mounting shell, a valve base, a static valve plate, a movable valve plate, a movable valve plate connecting seat, a valve stem and a valve stem mounting seat. The structure is simple, has a low manufacturing cost and is easy to operate. When in use, the water flow rate can be adjusted by simply pushing the valve stem. Specifically, the valve stem is pushed to move the valve stem. At this time, the valve stem rotates in the valve stem mounting seat. The bottom of the valve stem can drive the movable valve plate connecting seat to slide. The sliding of the movable valve plate connecting seat can drive the movable valve plate to slide on the static valve plate. When the movable valve plate slides on the static valve plate, the first water flow regulating groove and the second water flow regulating groove can cooperate with each other to adjust the water flow rate.

[0013] (3) The adjustable limit mechanism in the utility model has a simple structure, is easy to use and has an automatic reset function. During normal use, the limit handle in the adjustable limit mechanism is located at a position that can limit the handle mechanism from moving to a position where a large amount of water can be discharged. When a large amount of water is needed, it is only necessary to pull the limit handle so that the limit handle avoids the handle mechanism and moves to a position where a large amount of water can be discharged. At this time, the handle mechanism can be moved to the position where a large amount of water can be discharged, and the faucet can normally discharge a large amount of water to meet people's needs for a large amount of water. When a large amount of water is not needed, it is only necessary to move the handle mechanism to a position where other water amounts can be discharged or no water can be discharged. At this time, the limit handle can automatically reset to a position where the handle mechanism can be limited from moving to a position where a large amount of water can be discharged under the action of the spring torque.

[0014] (4) The handle of the utility model is provided with a flexible rubber layer, which can improve the comfort of people when holding the operating handle.

[0015] In summary, the utility model has a simple structure, is easy to use, has a low manufacturing cost, and is highly practical. It can prevent users from directly turning on the faucet switch to a high water output position when the user does not need to use a large amount of water, and can effectively reduce the waste of water resources. The utility model is suitable for being installed on the faucet body to adjust the water output of the faucet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] Figure 1 A three-dimensional diagram of an embodiment of the utility model;

[0018] Figure 2 This is a disassembly diagram of an embodiment of the utility model;

[0019] Figure 3 for Figure 2 A magnified view of part A;

[0020] Figure 4 This is a schematic structural diagram of the valve base from a first perspective in an embodiment of the utility model;

[0021] Figure 5 This is a schematic structural diagram of the valve base from a second viewing angle in an embodiment of the utility model;

[0022] Figure 6 A three-dimensional diagram of a static valve plate in an embodiment of the utility model;

[0023] Figure 7 This is a schematic diagram of the structure of the first water flow regulating groove on the static valve plate in the embodiment of the utility model;

[0024] Figure 8 A three-dimensional diagram of a movable valve plate in an embodiment of the utility model;

[0025] Fig. 9 A three-dimensional diagram of a movable valve plate connecting seat in an embodiment of the utility model;

[0026] Fig.10 It is a three-dimensional diagram of the lower mounting block in the embodiment of the utility model;

[0027] Fig.11 A three-dimensional diagram of an upper mounting block in an embodiment of the utility model;

[0028] Fig.12 A top view of the upper mounting block in the embodiment of the utility model;

[0029] Fig.13 A three-dimensional diagram of a valve stem in an embodiment of the utility model;

[0030] Fig.14 A three-dimensional diagram of a valve core installation housing in an embodiment of the utility model;

[0031] Fig.15 A three-dimensional diagram of a compression cover in an embodiment of the utility model;

[0032] Fig.16 This is a schematic diagram of the connection relationship between the pressing cover and the connecting cover in the embodiment of the utility model;

[0033] Fig.17 A three-dimensional diagram of a handle mechanism in an embodiment of the utility model;

[0034] Fig.18 A three-dimensional diagram of a base in an embodiment of the utility model;

[0035] Fig.19 Schematic diagram of water flow between the static valve plate and the dynamic valve plate in the initial state in the embodiment of the utility model;

[0036] Fig. 20 It is a schematic diagram of the water flow between the static valve plate and the dynamic valve plate in the low water state in the embodiment of the utility model;

[0037] Fig.21 It is a schematic diagram of water flow between the static valve plate and the dynamic valve plate in the middle water state in the embodiment of the utility model;

[0038] Fig. 22 It is a schematic diagram of the water flow between the static valve plate and the dynamic valve plate in a high water state in an embodiment of the utility model;

[0039] Fig.23 This is a schematic diagram of the positional relationship between the operating direction indicator and the top of the handle in the embodiment of the utility model;

[0040] Fig.24 This is a schematic diagram of an embodiment of the utility model installed on a faucet body;

[0041] In the figure: 1. Valve body installation housing;

[0042] 2. Valve core installation shell; 201. Cylindrical shell; 202. Card plate through hole; 203. Hook hole;

[0043] 3. Valve base; 31. Chassis; 32. Bottom block; 33. Valve base clamping block; 34. Valve base hook plate; 35. Base clamping plate; 36. First water inlet hole; 37. First water outlet hole; 38. Limiting protrusion;

[0044] 4. Static valve plate; 41. Static valve plate body; 42. Static valve plate slot; 43. First water flow regulating slot; 44. Second water inlet hole; 45. Second water outlet hole; 431. First arc-shaped slot; 432. First horizontal slot; 433. Second arc-shaped slot; 434. Second horizontal slot;

[0045] 5. Moving valve plate; 51. Moving valve plate body; 52. Moving valve plate slot; 53. Second water flow regulating slot;

[0046] 6. Moving valve plate connecting seat; 61. Moving valve plate connecting seat body; 62. Moving valve plate connecting seat clamping block; 63. Connecting seat through hole;

[0047] 7. lower mounting block; 71. lower positioning groove; 72. lower through hole;

[0048] 8. valve stem; 81. rectangular rod; 82. spherical member; 83. hemispherical projection; 84. screw positioning groove;

[0049] 9. upper mounting block; 91. upper positioning side groove; 92. upper through hole; 93. upper positioning protrusion;

[0050] 10. Compression cover; 101. Annular external threaded part; 102. Hexagonal nut;

[0051] 11. Connecting cover;

[0052] 12. handle mechanism; 121. movable seat housing; 122. connecting piece; 123. handle; 124. positioning screw;

[0053] 13. Support;

[0054] 14. base; 141. base body; 142. top circular groove; 143. middle circular groove; 144. bottom circular groove; 145. opening assembly; 1451. first opening; 1452. second opening;

[0055] 15. Vertical axis; 16. Spring; 17. Connecting rod; 18. Stopper; 19. Limiting handle; 20. Sealing cover; 21. Faucet body. DETAILED DESCRIPTION

[0056] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and understand the present invention, and are not used to limit the present invention.

[0057] Embodiment A water-saving faucet switch

[0058] like Figure 1 , Figure 2 As shown, this embodiment includes a valve body mounting shell 1 for fixed connection with the faucet body 21, a valve core mechanism inserted in the valve body mounting shell 1 and capable of adjusting the water flow rate, a connection seat detachably connected to the open end of the valve body mounting shell 1 and capable of pressing the valve core mechanism in the valve body mounting shell 1, a handle mechanism 12 fixed on the top of the valve core mechanism and movably connected to the outside of the connection seat, and an adjustable limit mechanism that can be used to limit the handle mechanism 12 from moving to the high water outlet position or release the limit on the handle mechanism 12 from moving to the high water outlet position. It should be noted in advance that, Fig.24 As shown, this embodiment needs to be assembled on an existing faucet body 21 before it can be used. The valve core mechanism in this embodiment is connected to the faucet body 21 to control the water output through the valve core mechanism.

[0059] The valve core mechanism includes a valve core installation shell 2 and a valve base 3, a static valve disc 4, a movable valve disc 5, a movable valve disc connecting seat 6 and a valve stem 8 which are sequentially assembled in the valve core installation shell 2, wherein the valve core installation shell 2 is a hollow cylindrical shell, and the outer diameter of the valve core installation shell 2 is the same as the inner diameter of the valve body installation shell 1. A circular ring-shaped limiting plate is fixed on the top of the hollow cylindrical shell, and the diameter of the circular hole in the circular ring-shaped limiting plate is smaller than the inner diameter of the hollow cylindrical shell. The bottom of the valve stem 8 is inserted into the connecting seat through hole 63 in the movable valve disc connecting seat 6, and the position of the valve stem 8 located above the movable valve disc connecting seat 6 is rotatably connected to the valve core installation shell 2 through the valve stem mounting seat. The valve base 3, the static valve plate 4, and the moving valve plate 5 are penetrated by a water inlet hole assembly for allowing water to flow into the valve core mechanism and a water outlet hole assembly for allowing water to flow out of the valve core mechanism. The water inlet hole assembly includes a first water inlet hole 36 provided on the valve base 3 and a second water inlet hole 44 provided on the static valve plate 4. The water outlet hole assembly includes a first water outlet hole 37 provided on the valve base 3 and a second water outlet hole 45 provided on the static valve plate 4. The diameters of the first water inlet hole 36, the second water inlet hole 44, the first water outlet hole 37, and the second water outlet hole 45 are the same. The first water inlet hole 36, the second water inlet hole 44, the first water outlet hole 37, and the second water outlet hole 45 are all provided with rubber sealing rings for preventing water leakage. Specifically, in the present embodiment, Figure 4 , Figure 5As shown, the valve base 3 includes a chassis 31, a cylindrical bottom block 32 fixed on the chassis 31, four valve base clamping blocks 33 fixed on the top circumference of the bottom block 32, two valve base hooking plates 34 fixed at relative positions on the top circumference of the bottom block 32 for hooking the valve base 3 on the bottom of the valve core mounting shell 2, and two base clamping plates 35 fixed at relative positions on the top circumference of the chassis 31 for positioning the valve core mounting shell 2, wherein the size of the base clamping plate 35 close to the first water inlet hole 36 is larger than the size of the base clamping plate 35 away from the first water inlet hole 36, two limiting protrusions 38 adapted to the mounting plate groove in the existing faucet body 21 are fixed at the bottom of the chassis 31, and the first water inlet hole 36 and the first water outlet hole 37 are penetrated through the chassis 31 and the bottom block 32. Specifically, in this embodiment, the chassis 31, the bottom block 32, the four valve base clamping blocks 33, the two valve base hooking plates 34 and the two base clamping plates 35 are integrally formed. After the present embodiment is installed on the existing faucet body 21, the two limiting protrusions 38 are inserted into the two mounting plate grooves on the mounting plate in the existing faucet body 21 to limit the valve base 3 on the existing faucet body 21, and the first water inlet hole 36 and the first water outlet hole 37 are matched with the corresponding mounting plate water inlet hole and mounting plate water outlet hole on the mounting plate in the faucet body 21. To prevent water leakage, a rubber sealing ring is provided between the first water inlet hole 36 and the mounting plate water inlet hole, and a rubber sealing ring is provided between the first water outlet hole 37 and the mounting plate water outlet hole.

[0060] like Figure 6 As shown, the static valve plate 4 includes a cylindrical static valve plate body 41, and four static valve plate slots 42 adapted to the four valve base blocks 33 are fixed at the bottom of the static valve plate body 41. The side surfaces of the static valve plate body 41 corresponding to the two valve base hooking plates 34 are all flat so that the two valve base hooking plates 34 can pass through the side outside of the static valve plate body 41, and the side surfaces of the vertical plates in the valve base hooking plates 34 are in contact with the side surfaces of the static valve plate body 41 corresponding to the valve base hooking plates 34. A first water flow regulating groove 43 is provided on the surface of the static valve plate body 41 in contact with the movable valve plate 5, as shown in FIG. Figure 7As shown, the first water flow regulating groove 43 includes a first arc groove 431, a second arc groove 433 connected to the first arc groove 431, a first horizontal groove 432 connected to the end of the first arc groove 431, and a second horizontal groove 434 connected to the end of the second arc groove 433, wherein the width of the first arc groove 431 is smaller than the width of the second arc groove 433, the length of the first horizontal groove 432 is the same as the length of the second horizontal groove 434, the width of the first horizontal groove 432 is smaller than the width of the second horizontal groove 434, and the depths of the first arc groove 431, the second arc groove 433, the first horizontal groove 432 and the second horizontal groove 434 are the same. The second water inlet 44 on the static valve plate 4 is located at the position where the second arc groove 433 intersects with the first arc groove 431, and the second water outlet 45 on the static valve plate 4 is located at the center between the first horizontal groove 432 and the second horizontal groove 434, and the diameter of the second water outlet 45 is the same as the width of the second horizontal groove 434.

[0061] like Figure 8 As shown, the movable valve plate 5 includes a cylindrical movable valve plate body 51, the size of the movable valve plate 5 is smaller than the size of the static valve plate 4 so that the movable valve plate 5 can slide on the static valve plate 4, five movable valve plate slots 52 are arranged at intervals on the top circumference of the movable valve plate body 51, and a second water flow regulating groove 53 is arranged on the surface of the movable valve plate body 51 that is in contact with the static valve plate 4. The second water flow regulating groove 53 is a third horizontal groove, the depth of the third horizontal groove is the same as that of the second horizontal groove, the width of the third horizontal groove is the same as that of the second horizontal groove, the length of the third horizontal groove is greater than the length between the first horizontal groove and the second horizontal groove, when the third horizontal groove moves to the left to completely cover the first horizontal groove, the right end of the third horizontal groove is separated from the coverage of the second horizontal groove, and when the third horizontal groove moves to the right to completely cover the second horizontal groove, the left end of the third horizontal groove is separated from the coverage of the first horizontal groove. In addition, it is necessary to ensure that when the third horizontal groove moves to a position between the first horizontal groove and the second horizontal groove, the sum of the areas on both sides of the third horizontal groove overlapping with the first horizontal groove and the second horizontal groove respectively is smaller than the area of ​​the third horizontal groove overlapping with the first horizontal groove when the third horizontal groove moves to the left to completely cover the first horizontal groove; the area of ​​the third horizontal groove overlapping with the first horizontal groove when the third horizontal groove moves to the left to completely cover the first horizontal groove is smaller than the area of ​​the third horizontal groove overlapping with the second horizontal groove when the third horizontal groove moves to the right to completely cover the second horizontal groove.

[0062] like Fig. 9 As shown, the movable valve plate connecting seat 6 includes a cylindrical movable valve plate connecting seat body 61, which has the same size as the movable valve plate body 51, and the bottom of the movable valve plate connecting seat body 61 is provided with five movable valve plate connecting seat blocks 62 adapted to the five movable valve plate slots 52, and a rectangular connecting seat through hole 63 is opened at the center of the movable valve plate connecting seat body 61. Fig.13As shown, the valve stem 8 includes a rectangular rod 81, a spherical component 82 fixed on the rectangular rod 81, and a hemispherical protrusion 83 fixed on the spherical component 82, wherein a screw positioning groove 84 adapted to the positioning screw 124 is provided at the upper end of the rectangular rod 81, the screw positioning groove 84 is a circular groove, the bottom of the rectangular rod 81 is an arc surface, the rectangular rod 81, the spherical component 82 and the hemispherical protrusion 83 are integrally formed, the size of the rectangular rod 81 is adapted to the size of the connecting seat through hole 63 so that the bottom of the rectangular rod 81 can be inserted into the connecting seat through hole 63 and when the rectangular rod 81 moves, it can drive the movable valve plate connecting seat 6 to move, and the movement of the movable valve plate connecting seat 6 can drive the movable valve plate 5 to move together.

[0063] The valve stem mounting seat includes a cylindrical upper mounting block 9 and a cylindrical lower mounting block 7. Fig.10 , Fig.11 As shown, two upper positioning side grooves 91 are provided on the opposite sides of the upper mounting block 9, four upper positioning protrusions 93 are fixedly provided on the bottom surface circumference of the upper mounting block 9 at intervals, and four lower positioning grooves 71 adapted to the four upper positioning protrusions 93 are fixedly provided on the top surface circumference of the lower mounting block 7, as shown in FIG. Fig.12 As shown, the size of the upper positioning side groove 91 located on the upper left is smaller than the size of the upper positioning side groove 91 located on the lower right. Both the upper mounting block 9 and the lower mounting block 7 have spaces in which the rectangular rod 81, the spherical member 82 and the hemispherical protrusion 83 can move. Specifically, an upper through hole 92 is provided on the upper mounting block 9, and a lower through hole 72 is provided on the lower mounting block 7. The upper through hole 92 is composed of a hemispherical hole and a rectangular hole with slopes on three sides, and the hemispherical hole is located below the rectangular hole. The lower through hole 72 is composed of a hemispherical hole and a rectangular hole with slopes on three sides, and the hemispherical hole is located above the rectangular hole. After the upper through hole 92 and the lower through hole 72 are stacked together, the space formed between the hemispherical hole in the upper through hole 92 and the hemispherical hole in the lower through hole 72 matches the shape and size of the spherical member 82 and the hemispherical projection 83, and the rectangular hole with a slope on the three sides of the upper through hole 92 and the rectangular hole with a slope on the three sides of the lower through hole 72 match the shape and size of the rectangular rod 81 so that the valve stem 8 can move in the direction of the three sides with the slope. The left side, lower side, and right side of the rectangular hole in the upper through hole 92 all have a slope, and the left side, upper side, and right side of the rectangular hole in the lower through hole 72 all have a slope.

[0064] like Fig.14As shown, the valve core installation shell 2 is a cylindrical shell 201, and two upper positioning strips adapted to the two upper positioning side grooves 91 are fixedly arranged at positions corresponding to the two upper positioning side grooves 91 in the upper mounting block 9 on the inner wall of the valve core installation shell 2. Two hooking holes 203 adapted to the two valve base hooking plates 34 are provided at positions corresponding to the two valve base hooking plates 34 on the valve core installation shell 2, and two card plate through holes 202 adapted to the two base card plates 35 are provided at positions corresponding to the two base card plates 35 on the valve core installation shell 2. The bottom of the valve core installation shell 2 is inserted on the circumference of the top surface of the chassis 31 in the valve base 3, and the two card plate through holes 202 in the valve core installation shell 2 are correspondingly clamped on the two base card plates 35, and the two valve base hooking plates 34 are located in the cavity of the valve core installation shell 2 and the two valve base hooking plates 34 are correspondingly hooked on the two hooking holes 203 from the inner side of the valve core installation shell 2.

[0065] The connection seat includes a clamping cover 10 for threaded connection with the inner side of the opening end of the valve body mounting shell 1 and a connection cover 11 threadedly connected to the clamping cover 10. The bottom of the clamping cover 10 is pressed against the top of the annular stopper in the valve core mounting shell 2. Fig.15 , Fig.16 As shown, the clamping cover 10 includes an annular external threaded part 101 and a hexagonal nut 102 fixed on the annular external threaded part 101, and the inner side of the bottom of the connecting cover 11 is provided with an internal thread that is compatible with the annular external threaded part 101. When the clamping cover 10 and the connecting cover 11 are connected together, a structure with a middle connection and openings at both ends is formed so that the valve stem 8 can pass through the connecting seat and extend to the outside of the connecting seat.

[0066] like Fig.17 As shown, the handle mechanism 12 includes a movable seat fixed to the top of the valve stem 8 by a positioning screw 124 and a handle 123 fixed to the top of the movable seat, the movable seat is sleeved on the outside of the connecting seat and the movable seat can move relative to the connecting seat, wherein a flexible rubber layer is provided on the handle 123. Specifically, in this embodiment, the movable seat includes a movable seat housing 121 and a connecting member 122 fixed in the movable seat housing 121 for connecting with the top of the valve stem 8. The shape and size of the movable seat housing 121 are adapted to the shape and size of the connecting cover 11 so that after the movable seat housing 121 is sleeved on the outside of the connecting cover 11, the movable seat housing 121 can move relative to the connecting cover 11. The top of the valve stem 8 is inserted into the connecting member 122 and fixed to the movable seat by the positioning screw 124, and the front end of the positioning screw 124 is positioned in the screw positioning groove 84. In order to improve the aesthetics of this embodiment, a colored plastic cap is sleeved on the outside of the nut in the positioning screw 124 in this embodiment. The angle of the handle mechanism 12 moving leftward from the middle position is between 15 degrees and 35 degrees, the angle of the handle mechanism 12 moving rightward from the middle position is between 15 degrees and 35 degrees, and the angle of the handle mechanism 12 moving downward from the middle position is between 15 degrees and 35 degrees.

[0067] like Figure 3 As shown, the adjustable limiting mechanism includes a support 13 fixed on the outside of the valve body mounting shell 1, a base 14 threadedly connected to the support 13, a vertical shaft 15 inserted on the base 14, a spring 16 sleeved on the vertical shaft 15, a connecting rod 17 fixed to the upper end of the spring 16 and slidably connected to the base 14, a baffle 18 fixed on the connecting rod 17 and abutting against the outside of the base 14, a limiting handle 19 fixed on the baffle 18 for limiting the handle mechanism 12 from moving to the high water discharge position, and a sealing cover 20 detachably connected to the top of the base 14, the baffle 18 is an arc-shaped baffle, and the spring 16, the connecting rod 17, the baffle 18 and the limiting handle 19 are integrally formed. Specifically, in this embodiment, a support threaded hole for mounting the base 14 is provided on the top of the support 13, as shown in FIG. Fig.18As shown, the base 14 includes a cylindrical base body 141, the bottom of the base body 141 is provided with an external thread adapted to the support threaded hole, the outer side of the external thread at the bottom of the base body 141 is sleeved with a circular rubber pad, and the bottom of the base body 141 is threadedly connected to the support threaded hole of the support 13. A stepped cylindrical groove is provided at the top of the base body 141, and the stepped cylindrical groove includes a bottom circular groove 144 at the bottom, a middle circular groove 143 at the middle, and a top circular groove 142 at the top, wherein the inner side wall of the top circular groove 142 is provided with an internal thread, and the side wall of the bottom circular groove 144 is provided with a vertical axis limiting groove for limiting the vertical axis 15, and the vertical axis 15 includes a circular axis, a limiting block fixed at the lower end of the circular axis and adapted to the limiting groove, and a mounting hole provided at the bottom of the circular axis, and the spring 16 is sleeved on the outside of the vertical axis 15, and the free end of the bottom of the spring 16 is hooked in the mounting hole on the vertical axis 15 and fixed firmly, and the bottom of the spring 16 is located on the middle circular groove 143. In addition, an opening assembly adapted to the connecting rod 17 and the stopper 18 is provided on the right side of the upper end of the base body 141 so that the connecting rod 17 and the stopper 18 can slide in the opening assembly 145. The opening assembly 145 includes a first opening 1451 and a second opening 1452 connected to the first opening 1451. The bottom height of the first opening 1451 is higher than the bottom height of the middle circular groove 143, and the bottom height of the second opening 1452 is lower than the bottom height of the first opening. The connecting rod 17 passes through the first opening 1451, and the baffle 18 is placed at the second opening 1452. The sizes of the connecting rod 17 and the baffle 18 match the size of the opening assembly 145 so that when the connecting rod 17 slides at any position in the first opening 1451, the baffle 18 can move on the second opening 1452 and the baffle 18 can always cover the first opening 1451. When the connecting rod 17 moves clockwise to the end of the first opening, the limit handle 19 is located at a position that affects the handle 123 to move to the position where the water flows out. When the connecting rod 17 moves counterclockwise to the end of the first opening, the limit handle 19 is located at a position that does not affect the handle 123 to move to the position where the water flows out. The bottom of the sealing cover 20 is provided with an external thread, and the top of the sealing cover 20 is provided with a circular groove for the vertical shaft to be inserted. The external thread at the bottom of the sealing cover 20 is threadedly connected to the internal thread of the circular groove 142 at the top, and the top of the vertical shaft 15 is inserted into the circular groove on the sealing cover 20. In order to facilitate the use of the user, a counterclockwise indicating arrow is provided on the top of the limit handle 19 in this embodiment.

[0068] In order to facilitate the user to use this embodiment correctly, an operation direction indicator is provided on the top surface of the handle 123 of this embodiment, such as Fig.23As shown, the operation direction indicator includes a left arrow, a right arrow, and an up and down arrow. The left arrow and the right arrow are located on the same straight line. The word "big" is written next to the left arrow, the word "medium" is written next to the right arrow, the word "off" is written next to the lower part of the up and down arrows, and the word "small" is written next to the upper part of the up and down arrows

[0069] In order to conveniently remind users to save water, the words "Please save water" are set at a prominent position on the top of the moving base in this embodiment.

[0070] It should be noted that, in accordance with national standards, when the faucet switch is turned to the maximum state, the water outlet speed of the faucet is the maximum water outlet speed. In this embodiment, it is defined that when the water outlet speed of the faucet is less than 25% of the maximum water outlet speed of the faucet, it is small water; when the water outlet speed of the faucet is greater than 25% of the maximum water outlet speed of the faucet and less than 50% of the maximum water outlet speed of the faucet, it is medium water; when the water outlet speed of the faucet is greater than 50% of the maximum water outlet speed of the faucet, it is large water.

[0071] The working principle of the valve core mechanism in this embodiment is as follows: when the control handle 123 moves, the movable seat shell 121 can move relative to the connecting cover 11, and at the same time the movable seat will drive the valve stem 8 to move, and the spherical component 82 and the hemispherical protrusion 83 in the valve stem 8 can rotate in the valve stem mounting seat. At this time, the bottom of the valve stem 8 can drive the movable valve plate connecting seat 6 to slide, and the movable valve plate connecting seat 6 can drive the movable valve plate 5 to slide. At this time, the movable valve plate 5 can move in contact with the static valve plate 4. As the moving position of the movable valve plate 5 changes, the area of ​​the second water flow regulating groove 53 in the movable valve plate 5 and the first water flow regulating groove 43 in the static valve plate 4 are different, thereby realizing the control of the three water outputs. Specifically, as Fig.19 As shown, in this embodiment, it is defined that when the handle 123 is in the lower position, that is, when the top of the valve stem 8 is in the lower position, it is the initial position. At this time, the second water flow regulating groove 53 on the movable valve plate 5 is not connected with the first water flow regulating groove 43, and the water flow cannot flow into the second water flow regulating groove 53 after flowing into the first water flow regulating groove 43 through the water inlet hole assembly, so the water flow cannot flow into the water outlet hole assembly, and the faucet does not discharge water at this time.

[0072] like Fig. 20As shown, the handle 123 is moved upward from the lower position, the top end of the valve stem 8 is moved upward, and the bottom end of the valve stem 8 drives the movable valve plate 5 to move downward. At this time, the left end of the second water flow regulating groove 53 on the movable valve plate 5 overlaps a small part with the first horizontal groove 432 in the first water flow regulating groove 43, and the right end of the second water flow regulating groove 53 on the movable valve plate 5 overlaps a small part with the second horizontal groove 434 in the first water flow regulating groove 43. After the water flows into the first water flow regulating groove 43 through the water inlet hole assembly, it flows into the second water flow regulating groove 53 through the part where the second water flow regulating groove 53 overlaps with the first water flow regulating groove 43 at both ends. The water in the second water flow regulating groove 53 flows out through the water outlet hole assembly. Because the area where the second water flow regulating groove 53 overlaps with the first water flow regulating groove 43 at both ends is small, the faucet discharges little water at this time.

[0073] like Fig.21 As shown, the handle 123 moves upward and then to the right from the lower position, the top of the valve stem 8 moves upward and then to the right, and the bottom of the valve stem 8 drives the movable valve plate 5 to move downward and then to the left. At this time, the left end of the second water flow regulating groove 53 on the movable valve plate 5 completely overlaps with the first horizontal groove 432 in the first water flow regulating groove 43, and the water flows into the first water flow regulating groove 43 through the water inlet hole assembly and then flows into the second water flow regulating groove 53 through the first horizontal groove 432. The water in the second water flow regulating groove 53 flows out through the water outlet hole assembly. Because the area of ​​the first horizontal groove 432 is larger than the area of ​​the second water flow regulating groove 53 and the first water flow regulating groove 43 when the faucet is discharging small water, the faucet is discharging medium water at this time.

[0074] like Fig. 22 As shown, the handle 123 is first moved upward from the lower position, and then moved to the left after pulling the limit handle 19, the top end of the valve stem 8 first moves upward and then moves to the left, and the bottom end of the valve stem 8 drives the movable valve plate 5 to move downward and then to the right. At this time, the right end of the second water flow regulating groove 53 on the movable valve plate 5 completely overlaps with the second horizontal groove 434 in the first water flow regulating groove 43, and the water flows into the first water flow regulating groove 43 through the water inlet hole assembly and then flows into the second water flow regulating groove 53 through the second horizontal groove 434. The water in the second water flow regulating groove 53 flows out through the water outlet hole assembly. Because the area of ​​the second horizontal groove 434 is larger than the area of ​​the first horizontal groove 432, the faucet discharges a lot of water at this time.

[0075] The working principle of the adjustable limit mechanism in this embodiment is as follows: in this embodiment, it is defined that the limit handle 19 in the adjustable limit mechanism blocks the handle 123 from moving to the position where the water flows out as the initial state. When the water flows out, the limit handle 19 is pulled to a position where it does not affect the handle 123 from moving to the position where the water flows out. At this time, the limit can be released and people can use the water flow normally. When the water flows out not, the handle 123 only needs to be moved to a position where other water flows out or no water flows out. At this time, the limit handle 19 can be automatically reset under the torsion of the spring 16, and the limit handle 19 can again block the handle 123 from moving to the position where the water flows out, thereby playing the role of limit again.

[0076] The method of use of this embodiment is as follows: when the handle 123 is in the lower position, the valve core mechanism in this embodiment is in a closed state, and the faucet does not discharge water at this time. When a small amount of water is needed, the handle 123 only needs to be pushed upward, and the faucet can discharge a small amount of water at this time. When medium water is needed, the handle 123 only needs to be pushed upward and then pushed to the right, and the faucet can discharge medium water at this time. When a large amount of water is needed, the limit handle 19 in the adjustable limit mechanism needs to be removed first, and the limit handle 19 needs to be moved to a position that does not affect the movement of the handle 123 to the position where the large amount of water is discharged, and then the handle 123 is pushed upward and then pushed to the left, and the faucet can discharge a large amount of water at this time. When the large amount of water is not used, the handle 123 only needs to be pushed to the required water flow position, and the limit handle 19 can be automatically reset to a position that can block the handle 123 from moving to the position where the large amount of water is discharged.

[0077] The principle of water saving in this embodiment is as follows: the valve core mechanism in this embodiment can realize the control of three kinds of water flow, and the valve core mechanism can be controlled to make the faucet accurately discharge small water, medium water or large water, and the user can select the corresponding water output according to the use requirements, so as to avoid the waste of water. In addition, when using small water, the operation of this embodiment is very simple, and small water can be discharged by just pushing the handle upward. When using medium water, the operation is relatively complicated compared with that when using small water, and the handle needs to be pushed upward and then pushed to the right. When using large water, the operation is the most complicated, and one hand is required to release the limit of the adjustable limit mechanism, and the other hand needs to push the handle upward and then push the handle to the left. Because only one step is required when using small water, two steps are required when using medium water, and three steps are required when using large water, by increasing the difficulty of using small water, medium water and large water in turn, the user can choose the appropriate amount of water, and can avoid the user directly turning on the faucet switch to the position of discharging large water, thereby achieving the purpose of water saving.

[0078] It should be noted that the above is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A water-saving faucet switch, characterized in that: It includes a valve body mounting shell for fixed connection with the faucet body, a valve core mechanism inserted in the valve body mounting shell and capable of adjusting the water flow rate, a connecting seat detachably connected to the open end of the valve body mounting shell and capable of pressing the valve core mechanism in the valve body mounting shell, a handle mechanism fixed on the top of the valve core mechanism and movably connected to the outside of the connecting seat, and an adjustable limiting mechanism that can be used to limit the handle mechanism from moving to a high water outlet position or release the restriction on the handle mechanism from moving to a high water outlet position; the adjustable limiting mechanism includes a support fixed on the outside of the valve body mounting shell, a base fixed on the support, a vertical axis inserted on the base, a spring sleeved on the vertical axis, a connecting rod fixed to the upper end of the spring and slidably connected to the base, a baffle fixed on the connecting rod and in contact with the outside of the base, a limiting handle fixed on the baffle for limiting the handle mechanism from moving to a high water outlet position, and a sealing cover detachably connected to the top of the base.

2. A water-saving faucet switch according to claim 1, characterized in that: The valve core mechanism comprises a valve core installation shell, and a valve base, a static valve disc, a movable valve disc, a movable valve disc connecting seat and a valve stem which are sequentially assembled in the valve core installation shell, wherein the bottom of the valve stem is inserted into the movable valve disc connecting seat, and the position of the valve stem located above the movable valve disc connecting seat is rotatably connected to the valve core installation shell through the valve stem installation seat; The valve base, the static valve plate and the dynamic valve plate are penetrated with a water inlet assembly for allowing water to flow into the valve core mechanism and a water outlet assembly for allowing water to flow out of the valve core mechanism; The first water flow regulating groove and the second water flow regulating groove are respectively provided on the surfaces where the static valve plate and the movable valve plate are in contact. The movable valve plate can move in contact with the static valve plate and cooperate with each other through the first water flow regulating groove and the second water flow regulating groove to achieve regulation of the water flow rate.

3. A water-saving faucet switch according to claim 2, characterized in that: The handle mechanism comprises a moving seat fixedly arranged on the top of the valve stem and a handle fixedly arranged on the top of the moving seat, and the moving seat is movably connected with the connecting seat.

4. The water-saving faucet switch according to claim 3 is characterized in that: A flexible rubber layer is arranged on the handle.

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