Water-saving, push-activated switching structure for water flow

Abstract

Water-saving, push-operated switching structure for water flow, characterized in that it comprises the following: a housing (10) comprising a switching chamber (13), a water inlet (14) and at least two water outlets (15), wherein the water inlet (14) and the water outlets (15) are continuously connected to the switching chamber (13); a switching seat (20) which is a hollow rotating body and is rotatably arranged in the switching chamber (13), wherein the circumferential wall of the switching seat (20) is provided with a first flow hole (21) and a second flow hole (22), wherein during the rotation of the switching seat (20) either the first flow hole (21) or the second flow hole (22) acts as a water inlet hole of the switching seat (20) to correspond with the position of the water inlet (14), wherein the other of the two flow holes (21, 22) acts as a water outlet hole of the switching seat (20) to correspond with the position of a water outlet (15), wherein the water flow coming from the water inlet (14) is introduced into the switching chamber (13) via the water inlet hole and flows via the water outlet hole to a water outlet (15); a push-operated drive mechanism (30) arranged on the housing (10), wherein the switching seat (20) is driven to rotate by a predetermined angle by a single push of the push-operated drive mechanism (30), so that the water outlet hole is continuously connected to a corresponding water outlet (15) by switching, wherein the switching seat (20) rotates about the axis of the switching chamber (13) and the push-operated drive mechanism (30) is movable back and forth along the axial direction of the switching chamber (13), wherein the water inlet (14) and the water outlets (15) are arranged along the radial direction of the switching chamber (13);wherein the housing (10) comprises a main body (11) and a cover (12), wherein the switching chamber (13), the water inlet (14) and the at least two water outlets (15) are attached to the main body (11), the upper wall of the main body (11) is provided with an opening of the switching chamber (13), the sealing cap of the cover (12) is connected to the opening of the switching chamber (13) and the cover (12) is provided with a through-hole through which the drive section of the actuating drive mechanism (30) protrudes from the switching chamber (13), wherein; The actuating mechanism (30) to be operated by pressing comprises a switching shaft (31), a return shaft (32), an elastic return element (33) and a guide shaft (34), wherein the cover (12) is provided with a shaft bushing (121) extending inwards along the axial direction of the switching chamber (13), an opening (23) is formed at the end located near the opening of the switching chamber (13) in the axial direction of the switching seat (20), a bottom wall (24) is attached at the end furthest from the opening of the switching chamber (13), the bottom wall (24) of the switching seat (20) is provided with a water flow hole (241), a central hole 242 is provided in the center of the bottom wall (24) of the switching seat (20), a switching bushing (25) extends axially inwards from the circumference of the central hole (242), and the shaft bushing (121) extends through the opening of the switching seat into the switching seat (20) is inserted, the switching socket (25) is inserted into the axle socket (121),the switching shaft (31), the return shaft (32), the guide shaft (34), the shaft bushing (121) and the switching seat (20) in the space formed by the fact that the section of the switching shaft (31) located in the switching chamber (13) and the bottom wall (24) of the return shaft (32) located at the shaft bushing (121) and at the switching seat (20) enclose it, are coaxial, the switching shaft (31) and the return shaft (32) slide axially along the guide shaft (34), the switching shaft (31) and the return shaft (32) bear axially against each other, and the elastic return element (33) serves to provide an axial return force for the switching shaft (31) and the return shaft (32), , several equidistantly arranged first projecting blocks (1211) are attached to the inner wall of the axle bushing (121), wherein a first inclined restoring surface (12111) is provided on the bottom surface of each first projecting block (1211) and a first sliding slot (1212) is provided between each pair of adjacent first projecting blocks (1211); several equidistantly arranged second projecting blocks (311) are attached to the end of the switching axis (31) located in the switching chamber (13), wherein the second projecting blocks (311) are slidably arranged in the first sliding slot (1212) and a first inclined button (3111) is attached to the bottom surface of each second projecting block (311); several equidistantly arranged third projecting blocks (321) are attached to the outer circumferential wall of the return axis (32), wherein a second inclined return surface (3211) is attached to the upper surface of each third projecting block (321) and a second inclined button (3212) is attached to the bottom surface of each third projecting block (321); several equidistantly arranged fourth projecting blocks (251) are attached to the inner circumferential wall of the switching socket (25), wherein a third inclined button (2511) is attached to the upper surface of each fourth projecting block (251), a second sliding slot (252) is provided between each pair of adjacent fourth projecting blocks (251), the third projecting blocks (321) are slidable in the corresponding second sliding slots (252), and several equidistantly arranged fourth inclined buttons (253) are attached to the upper end face of the switching socket (25); wherein, when the switching shaft (31) is driven, the second inclined buttons (3212) of the return shaft (32) interact with the third inclined buttons (2511) of the switching bushing (25) to drive the switching seat (20) to rotate by a first angle, subsequently the third projecting blocks (321) of the return shaft (32) slide into the corresponding second sliding slots (252), whereby the first inclined buttons (3111) of the switching shaft (31) correspond with the fourth inclined buttons (253), wherein, accordingly, when the switching shaft (31) continues to be driven, the first inclined buttons (3111) of the switching shaft (31) interact with the fourth inclined buttons (253) to drive the switching seat (20) in the same direction to rotate by a second angle, wherein the sum of the first angle and the second angle is the predetermined angle.wherein, after the removal of the driving force exerted on the switching shaft (31), the switching shaft (31) and the return shaft (32) are reset under the action of the elastic return element (33), so that the second projecting blocks (311) of the switching shaft (31) slide into the corresponding first sliding slots (1212) and the third projecting blocks (321) of the return shaft (32) slide out of the corresponding second sliding slots (252), wherein the second inclined return surfaces (3211) of the return shaft (32) and the first inclined return surfaces (12111) of the shaft bushing (121) bear against each other, so that the return shaft (32) is rotated into the position in which the second inclined buttons (3212) of the return shaft (32) correspond with the third inclined buttons (2511) of the switching bushing (25); , where the number of the first foreground blocks (1211), the number of the second foreground blocks (311), the number of the third foreground blocks (321) and the number of the fourth foreground blocks (251) are the same.

Description

Field of the invention

[0001] The present invention relates to a water-saving, push-to-operate water flow switching structure. State of the art

[0002] Existing water-saving push-button water flow switching structures are typically provided with a housing, a switch seat, and a push-button drive mechanism. The housing typically includes a switching chamber, a water inlet, and at least two water outlets, and the water inlet and outlets are continuously connected to the switching chamber. A common push-button ballpoint pen-type switch structure is used for the push-button drive mechanism. By pressing the push-button drive mechanism once, the switch seat can be driven to rotate by a predetermined angle, thereby switching the water outlet hole and continuously connecting it to a corresponding water outlet to achieve the water flow switching function.However, when driving the existing switch seat, it is often necessary to overcome the reaction force created by the water pressure, resulting in a large driving force and a poor user experience. Document US 8 602 058 B1 describes a push-head faucet assembly comprising a sleeve, a body portion that is cylindrical and received in an interior of the sleeve, and a push button. Document DE 10 2016 121 290 A1 discloses a method and systems for regulating fluid flow through a three-way valve assembly. Document US 2012 / 0 111 973 A1 describes a handheld and multi-part water distributor. Document CN 1 09 253 281 A discloses a valve insert that can switch different functions by simply pressing and is easy to operate. Document DE 25 42 180 A1 describes a multi-way valve for intravenous fluids. Object of the invention

[0003] It is an object of the present invention to provide a water-saving push-to-operate water flow switching structure that can effectively reduce the pushing force and improve the user experience, and has a simple and compact structure.

[0004] To achieve the above-mentioned object, a water-saving, push-to-operate switching structure for the water flow is proposed according to claim 1. Advantageous embodiments of the invention are the subject of the dependent claims. A water-saving, push-to-operate switching structure for the water flow comprises the following: a housing having a switching chamber, a water inlet and at least two water outlets, wherein the water inlet and the water outlets are continuously connected to the switching chamber; a switch seat which is a hollow rotating body and is rotatably arranged in the switch chamber, wherein the peripheral wall of the switch seat is provided with a first flow hole and a second flow hole, wherein during rotation of the switch seat, either the first flow hole or the second flow hole functions as a water inlet hole of the switch seat to correspond to the position of the water inlet, wherein the other of the two flow holes functions as a water outlet hole of the switch seat to correspond to the position of a water outlet, wherein the water flow coming from the water inlet is introduced into the switch chamber via the water inlet hole and flows to a water outlet via the water outlet hole; a push-operated drive mechanism arranged on the housing, wherein the switch seat is driven to rotate by a predetermined angle by pressing the push-operated drive mechanism once, so that the water outlet hole is continuously connected to a corresponding water outlet by switching.

[0005] The switch seat rotates around the axis of the switching chamber and the push-to-operate drive mechanism is movable back and forth along the axial direction of the switching chamber, with the water inlet and water outlets provided along the radial direction of the switching chamber.

[0006] In an optional or preferred embodiment, the two axial ends of the switching seat are each continuously connected to the switching chamber.

[0007] In an optional or preferred embodiment, the water inlet and the water outlets are arranged opposite each other and the first flow hole and the second flow hole are arranged opposite each other, wherein, when one of the first flow hole and the second flow hole corresponds to the position of the water inlet, the other of the two flow holes - first flow hole and second flow hole - corresponds to the position of a water outlet.

[0008] The housing comprises a main body and a cover, wherein the switching chamber, the water inlet and the at least two water outlets are provided on the main body, the upper wall of the main body is provided with an opening of the switching chamber, the sealing cap of the cover is connected to the opening of the switching chamber and the cover is provided with a flow hole through which the drive section of the push-to-operate drive mechanism protrudes from the switching chamber.

[0009] The push-operated drive mechanism comprises a switching shaft, a return shaft, an elastic return element, and a guide shaft. The cover is provided with a shaft sleeve extending inwardly along the axial direction of the switching chamber. An opening is formed at the end near the opening of the switching chamber in the axial direction of the switching seat. A bottom wall is provided at the end remote from the opening of the switching chamber. The bottom wall of the switching seat is provided with a water flow hole. A center hole is provided in the center of the bottom wall of the switching seat. A switching sleeve extends axially inwardly from the periphery of the center hole. The shaft sleeve is inserted into the switching seat through the opening of the switching seat. The switching sleeve is inserted into the shaft sleeve. The switching shaft, the return shaft, the guide shaft, the shaft sleeve, and the switching seat are arranged in the space formed thereby.that the section of the switching axis located in the switching chamber and the bottom wall of the reset axis located on the axis bushing and on the switching seat enclose it, are coaxial, the switching axis and the reset axis slide axially along the guide axis, the switching axis and the reset axis lie axially against each other and the elastic return element serves to provide an axial return force for the switching axis and the reset axis.

[0010] A plurality of equidistantly arranged first protruding blocks are provided on the inner wall of the axle bushing, wherein a first inclined return surface is provided on the bottom surface of each first protruding block and a first sliding slot is provided between each two adjacent first protruding blocks, wherein a plurality of equidistantly arranged second protruding blocks are provided at the end of the switching axis located in the switching chamber, wherein the second protruding blocks are slidably arranged in the first sliding slot and a first inclined switching surface is provided on the bottom surface of each second protruding block, wherein a plurality of equidistantly arranged third protruding blocks are provided on the outer peripheral wall of the return axis, wherein a second inclined return surface is provided on the upper surface of each third protruding block and a second inclined button is provided on the bottom surface of each third protruding block, wherein a plurality of equidistantly arranged fourth protruding blocks are provided on the inner peripheral wall of the switching sleeve, a third inclined button is provided on the upper surface of each fourth protruding block, a second sliding slot is provided between each two adjacent fourth protruding blocks, the third protruding blocks are slidable in the corresponding second sliding slots, and a plurality of equidistantly arranged fourth inclined buttons are provided on the upper end surface of the switching sleeve, wherein, when the switching axis is driven, the second inclined buttons of the reset axis cooperate with the third inclined buttons of the switching sleeve to drive the switching seat to rotate through a first angle; then, the third projecting blocks of the reset axis slide into the corresponding second sliding slots, whereby the first inclined buttons of the switching axis correspond to the fourth inclined buttons; and accordingly, when the switching axis continues to be driven, the first inclined buttons of the switching axis cooperate with the fourth inclined buttons to drive the switching seat in the same direction to rotate through a second angle, the sum of the first angle and the second angle being the predetermined angle.wherein, after the removal of the driving force exerted on the switching axis, the switching axis and the reset axis are reset under the action of the elastic return element, so that the second projecting blocks of the switching axis slide into the corresponding first sliding slots and the third projecting blocks of the reset axis slide out of the corresponding second sliding slots, wherein the second inclined return surfaces of the reset axis and the first inclined return surfaces of the axis bushing abut each other, so that the reset axis is rotated to the position in which the second inclined buttons of the reset axis correspond to the third inclined buttons of the switching bushing, wherein the number of the first protruding blocks, the second protruding blocks, the third protruding blocks and the fourth protruding blocks are the same.

[0011] In an optional or preferred embodiment, the lower end of the guide shaft is defined by the main body and the upper end protrudes from the cover via the through hole, wherein the switching shaft and the reset shaft surround the guide shaft and the elastic return element is a compression spring which is housed in the inner cavity of the reset shaft and surrounds the guide shaft and whose one end abuts the reset shaft and whose other end abuts the guide shaft.

[0012] In an optional or preferred embodiment, the number of water inlets is one, the number of water outlets is three, and the number of the first protruding blocks, the second protruding blocks, the third protruding blocks, and the fourth protruding blocks is six each.

[0013] In an optional or preferred embodiment, the outer wall of the switching seat is provided with a sealing element around the water outlet hole or the inner peripheral wall of the switching chamber is provided with a sealing element around the water outlets, wherein the water outlet hole and the water outlets are continuously connected to one another in a sealing manner by the sealing element.

[0014] In an optional or preferred embodiment, the size of the water inlet in the circumferential direction of the switching chamber is equal to the size of the at least two water outlets in the circumferential direction of the switching chamber.

[0015] In an optional or preferred embodiment, the water inlet is provided with a filter net, wherein the filter net is formed integrally with the housing.

[0016] Compared with the prior art, the present invention has the following advantages: In the present invention, the switch seat is a hollow rotary body and rotatably arranged in the switch chamber, wherein the peripheral wall of the switch seat is provided with a first flow hole and a second flow hole, wherein during the rotation of the switch seat, either the first flow hole or the second flow hole functions as a water inlet hole of the switch seat to correspond to the position of the water inlet, wherein the other of the two flow holes functions as a water outlet hole of the switch seat to correspond to the position of a water outlet, wherein the water flow coming from the water inlet is introduced into the switch chamber via the water inlet hole and flows to a water outlet via the water outlet hole.This means that the switch seat is entirely located within the switch chamber, and the water pressure is balanced in all directions during rotation, eliminating the need to overcome the reaction force caused by the water pressure, thus effectively reducing the pressing force and improving the user experience. The invention has a simple and compact structure. Brief description of the drawings

[0017] To better understand the advantages of the present invention, a specific embodiment is described in detail below with reference to the accompanying drawings. These drawings represent only a typical embodiment of the invention and are not intended to limit the claims. The invention will be described and explained with additional specificity and detail with reference to the accompanying drawings. Fig. 1 is a perspective view of an embodiment of the water-saving push-to-operate water flow switching structure according to the invention; Fig. 2 is a sectional view of the embodiment of the water-saving push-to-switch structure for the water flow according to the invention; Fig. 3 is an exploded perspective view of the embodiment of the water-saving push-to-operate water flow switching structure according to the present invention; Fig. 4 is a perspective view of the main body of the embodiment according to the present invention; Fig. 5 is a perspective view of the cover of the embodiment according to the present invention; Fig. 6 is a perspective view of the switch seat of the embodiment according to the present invention; Fig. 7 is a perspective view of the sealing element of the embodiment according to the present invention; Fig. 8 is a perspective view of the switching axis of the embodiment according to the present invention; Fig. 9 a schematic view of the embodiment according to the present invention, in which the switching axis, the return axis and the switching seat are coordinated with each other. List of reference symbols

[0018] 10 - Housing; 11 - Main body; 12 - Cover; 121 - Axle bushing; 1211 - First protruding block; 12111 - First inclined return surface; 1212 - First sliding slot; 13 - Switching chamber; 14 - Water inlet; 15 - Water outlet; 20 - switch seat; 21 - first flow hole; 22 - second flow hole; 23 - orifice; 24 - bottom wall; 241 - water flow hole; 242 - center hole; 25 - switch socket; 251 - fourth protruding block; 2511 - third inclined button; 252 - second sliding slot; 253 - fourth inclined button; 30 - push-to-press drive mechanism; 31 - switching axis; 311 - second protruding block; 3111 - first inclined button; 32 - return axis; 321 - third protruding block; 3211 - second inclined return surface; 3212 - second inclined button; 33 - elastic return element; 34 - guide axis; 40 - sealing element; 50 - Filter net. Detailed description of the embodiment

[0019] In the following, the technical problems to be solved, technical solutions, and advantageous effects of the present invention will be described in detail and comprehensively with reference to the drawings of the embodiment of the present invention. It should be understood that the specific embodiment described here serves only to explain, but not to limit, the present invention.

[0020] It is based on the Fig. 1 to 9, which illustrate a preferred embodiment of the water-saving, push-to-operate water flow switching structure according to the present invention. It primarily comprises a housing 10, a switch seat 20, and a push-to-operate drive mechanism 30.

[0021] It is based on the Fig. 1, Fig. 2, Fig. 3 and Fig. 4. Here, the housing 10 has a switching chamber 13, a water inlet 14, and at least two water outlets 15, wherein the water inlet 14 and the water outlets 15 are continuously connected to the switching chamber 13. It is based on the Fig. 2, Fig. 3 and Fig. 6. Here, the switch seat 20 is a hollow rotating body and rotatably arranged in the switch chamber 13, wherein the peripheral wall of the switch seat 20 is provided with a first flow hole 21 and a second flow hole 22. During rotation of the switch seat 20, either the first flow hole 21 or the second flow hole 22 functions as a water inlet hole of the switch seat 20 to correspond to the position of the water inlet 14, and the other of the two flow holes functions as a water outlet hole of the switch seat 20 to correspond to the position of a water outlet 15, wherein the water flow coming from the water inlet 14 is introduced into the switch chamber 13 via the water inlet hole and flows to a water outlet 15 via the water outlet hole.

[0022] It is based on the Fig. 2, Fig. 3 and Fig. 9. Here, the push-to-operate drive mechanism 30 is arranged on the housing 10. The switch seat 20 is driven to rotate by a predetermined angle by pressing the push-to-operate drive mechanism 30 once, so that the water outlet hole is continuously connected to a corresponding water outlet 15 by switching.

[0023] In the present embodiment, the switch seat 20 rotates around the axis of the switch chamber 13, and the push-to-operate drive mechanism 30 is reciprocally movable along the axial direction of the switch chamber 13, with the water inlet 14 and the water outlets 15 provided along the radial direction of the switch chamber 13. This design is simple and compact.

[0024] It will be Fig. 2. In the present embodiment, the two axial ends of the switching seat 20 are each continuously connected to the switching chamber 13. In particular, the upper end of the switching seat 20 forms an opening 23. The bottom wall 24 is provided with a water flow hole 241, wherein the upper end of the switching seat 20 is continuously connected to the switching chamber 13 via the opening 23 and the lower end is continuously connected to the switching chamber 13 via the water flow hole 241.

[0025] It is based on the Fig. 1, Fig. 2, Fig. 3 and Fig. 4. In the present embodiment, the water inlet 14 and the water outlets 15 are arranged opposite each other, and the first flow hole 21 and the second flow hole 22 are arranged opposite each other. If one of the first flow hole 21 and the second flow hole 22 corresponds to the position of the water inlet 14, the other of the two flow holes—first flow hole 21 and second flow hole 22—corresponds to the position of a water outlet 15. This switching configuration is very clever.

[0026] It is based on the Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5. In the present embodiment, the housing 10 comprises a main body 11 and a cover 12, wherein the switching chamber 13, the water inlet 14, and the at least two water outlets 15 are provided on the main body 11, the upper wall of the main body 11 is provided with an opening of the switching chamber 13, the sealing cap of the cover 12 is connected to the opening of the switching chamber 13, and the cover 12 is provided with a flow hole through which the drive section of the push-actuated drive mechanism 30 protrudes from the switching chamber 13. The drive section of the push-actuated drive mechanism 30 is specifically the switching shaft 31 mentioned later.

[0027] In the present embodiment, the push-actuated drive mechanism 30 includes a switching shaft 31, a return shaft 32, an elastic return member 33, and a guide shaft 34. The cover 12 is provided with an axle bushing 121 extending inward along the axial direction of the switching chamber 13. An opening 23 is formed at the end near the opening of the switching chamber 13 in the axial direction of the switching seat 20, a bottom wall 24 is provided at the end remote from the opening of the switching chamber 13, the bottom wall 24 of the switching seat 20 is provided with a water flow hole 241, and a center hole 242 is provided in the center of the bottom wall 24 of the switching seat 20. A switching sleeve 25 extends axially inward from the periphery of the center hole 242. The axle bushing 121 is inserted into the switch seat 20 via the opening 23 of the switch seat 20 and the switch bushing 25 is inserted into the axle bushing 121.In the space formed by the section of the switching axis 31 located in the switching chamber 13 and the bottom wall 24 of the reset axis 32 located on the axis bushing 121 and the switching seat 20 enclosing it, the switching axis 31, the reset axis 32, the guide axis 34, the axis bushing 121, and the switching seat 20 are coaxial, with the switching axis 31 and the reset axis 32 sliding axially along the guide axis 34, and the switching axis 31 and the reset axis 32 axially abutting one another. The elastic return element 33 serves to provide an axial return force for the switching axis 31 and the reset axis 32.

[0028] In the present embodiment, a plurality of equidistantly arranged first projecting blocks 1211 are provided on the inner wall of the axle bushing 121, wherein a first inclined return surface 12111 is provided on the bottom surface of each first projecting block 1211 and a first sliding slot 1212 is provided between each two adjacent first projecting blocks 1211.

[0029] It is based on the Fig. 3, Fig. 8 and Fig. 9. A plurality of equidistantly arranged second protruding blocks 311 are provided at the end of the switching shaft 31 located in the switching chamber 13, wherein the second protruding blocks 311 are slidably arranged in the first sliding slot 1212, and a first inclined switching surface 3111 is provided on the bottom surface of each second protruding block 311.

[0030] It is based on the Fig. 3 and Fig. 9. A plurality of equidistantly arranged third protruding blocks 321 are provided on the outer peripheral wall of the return axis 32, with a second inclined return surface 3211 being provided on the upper surface of each third protruding block 321 and a second inclined button 3212 being provided on the bottom surface of each third protruding block 321.

[0031] It is based on the Fig. 6 and Fig. 9. A plurality of equidistantly arranged fourth protruding blocks 251 are provided on the inner peripheral wall of the switch sleeve 25, a third inclined button 2511 is provided on the upper surface of each fourth protruding block 251, a second sliding slot 252 is provided between every two adjacent fourth protruding blocks 251, the third protruding blocks 251 are slidable in the corresponding second sliding slots 252, and a plurality of equidistantly arranged fourth inclined buttons 253 are provided on the upper end surface of the switch sleeve 25.

[0032] When the switching axis 31 is driven, the second inclined buttons 3212 of the return axis 32 cooperate with the third inclined buttons 2511 of the switching sleeve 25 to drive the switching seat 20 to rotate by a first angle. Then, the third projecting blocks 321 of the return axis 32 slide into the corresponding second sliding slots 252, whereby the first inclined buttons 3111 of the switching axis 31 correspond to the fourth inclined buttons 253. Accordingly, when the switching axis 31 continues to be driven, the first inclined buttons 3111 of the switching axis 31 cooperate with the fourth inclined buttons 253 to drive the switching seat 20 in the same direction to rotate by a second angle. The sum of the first angle and the second angle is the predetermined angle.After the driving force applied to the switching axis 31 is removed, the switching axis 31 and the reset axis 32 are reset under the action of the elastic return element 33, so that the second projecting blocks 311 of the switching axis 31 slide into the corresponding first sliding slots 1212 and the third projecting blocks 321 of the reset axis 32 slide out of the corresponding second sliding slots 252, wherein the second inclined return surfaces 3211 of the return axis 32 and the first inclined return surfaces 12111 of the axis sleeve 121 abut each other, so that the reset axis 32 is rotated to the position in which the second inclined buttons 3212 of the reset axis 32 correspond to the third inclined buttons 2511 of the switching sleeve 25. The number of the first protruding blocks 1211, the second protruding blocks 311, the third protruding blocks 321 and the fourth protruding blocks 251 are the same.

[0033] It is based on the Fig. 2 and Fig. 3. In the present embodiment, the lower end of the guide shaft 34 is defined by the main body 11, and the upper end protrudes from the cover 12 via the flow hole, with the switching shaft 31 and the reset shaft 32 surrounding the guide shaft 34. The elastic return element 33 is a compression spring housed in the inner cavity of the reset shaft 32 and surrounding the guide shaft 34, with one end abutting the reset shaft 32 and the other end abutting the guide shaft 34.

[0034] In other embodiments, the push-to-operate drive mechanism 30 according to the invention may also have a simple structure and be easy to implement. Of course, other common ballpoint pen-like push-to-operate drive mechanisms, which are not detailed here, may also be used.

[0035] In the present embodiment, the number of water inlets 14 is one, the number of water outlets 15 is three, and the number of the first protruding blocks 1211, the second protruding blocks 311, the third protruding blocks 321, and the fourth protruding blocks 251 is six, so that the switching of three water channels and the water outlet control with three functions can be realized.

[0036] It is based on the Fig. 2, Fig. 3 and Fig. 7. In the present embodiment, the outer wall of the switching seat 20 is provided with a sealing element 40 around the water outlet hole, or the inner peripheral wall of the switching chamber 13 is provided with a sealing element 40 around the water outlets 15, wherein the water outlet hole and the water outlets 15 are continuously connected to each other in a sealing manner by the sealing element 40. In the present embodiment, the sealing element 40 is attached to the inner peripheral wall of the switching chamber 13, wherein the sealing element 40 is a gasket, and the gasket is provided with three holes corresponding to the water outlets 15.

[0037] In the present embodiment, the size of the water inlet 14 in the circumferential direction of the switching chamber 13 is equal to the size of the at least two water outlets 15 in the circumferential direction of the switching chamber 13.

[0038] It will be Fig. 4. In the present embodiment, the water inlet 14 is provided with a filter mesh 50, wherein the filter mesh 50 is formed integrally with the housing 10. Of course, in other embodiments, the filter mesh 50 and the housing 10 can also be formed independently of each other. The water inlet 14 is further connected to a water inlet pipe, and a respective water outlet 15 is further connected to a corresponding water outlet pipe.

[0039] The switching process of this embodiment is briefly described below: As in Fig. 2, at this time, the portion of the switching axis 31 protruding from the housing 10 (namely, the driving portion of the driving mechanism to be operated by pushing) is not yet pressed, the second projecting blocks 311 of the switching axis 31 are located in the corresponding first sliding slots 1212 of the axis sleeve 121, the third projecting blocks 321 of the reset axis 32 are located outside the corresponding second sliding slots 252 of the switching sleeve, the second inclined buttons of the reset axis 32 correspond to the corresponding third inclined buttons 2511 of the switching sleeve 25, and the switching axis 31 and the reset axis 32 abut each other.

[0040] When the portion of the switching shaft 31 protruding from the housing 10 is pressed, the return shaft 32 is driven by the switching shaft 31 to overcome the elastic force of the elastic return member 33 and move axially inward. Under the cooperation of the second inclined buttons of the return shaft 32 and the third inclined buttons 2511 of the switching sleeve 25, the switching seat 20 is rotated by the first angle, and then the third projecting blocks 321 of the return shaft 32 slide into the corresponding second sliding slots 252 of the switching sleeve. Since the switching seat 20 is rotated by the first angle, at this time, the first inclined buttons 3111 of the switching shaft 31 correspond to the corresponding fourth inclined buttons 253 of the switching sleeve 25.When the switching shaft 31 continues to be pressed, under the cooperation of the first inclined buttons 3111 of the switching shaft 31 and the fourth inclined buttons 253 of the switching sleeve 25, the switching seat 20 continues to rotate by the second angle in the same direction, where the sum of the first angle and the second angle is a predetermined angle for each rotation of the switching seat 20. After the switching seat 20 is rotated by a predetermined angle, the water outlet hole is switched from one water outlet 15 to another water outlet 15.

[0041] When the driving force applied to the switching axis 31 is removed, the switching axis 31 and the reset axis 32 are reset under the action of the elastic return element 33, so that the second projecting blocks 311 of the switching axis 31 slide into the corresponding first sliding slots 1212, the third projecting blocks 321 of the reset axis 32 slide out of the second sliding slots 252, and the second inclined return surfaces 3211 of the reset axis 32 and the first inclined return surfaces 12111 of the axis sleeve 121 abut against each other, whereby the reset axis 32 is rotated and moved to the position in which the second inclined buttons 3212 of the reset axis 32 correspond to the third inclined buttons 2511 of the switching sleeve 25, namely the position shown in Fig. 2, in which the section is not yet pressed, is reset to prepare it for the next switching. In the present embodiment, after pressing the switching axis 31 three times, the positions of the first flow hole 21 and the second flow hole 22 are reversed. This means that if in the initial state the first flow hole 21 corresponds to the water inlet 14 and functions as the water inlet hole of the switching seat 20, and the second flow hole 22 corresponds to a water outlet 15 and functions as the water outlet hole of the switching seat 20, after pressing three times, a change occurs in that the second flow hole 22 corresponds to the water inlet 14 and functions as the water inlet hole of the switching seat 20, and the first flow hole 21 corresponds to a water outlet 15 and functions as the water outlet hole of the switching seat 20.

Claims

[1] Water-saving, push-to-switch structure for water flow, characterized by that it includes the following: a housing (10) having a switching chamber (13), a water inlet (14) and at least two water outlets (15), wherein the water inlet (14) and the water outlets (15) are continuously connected to the switching chamber (13); a switch seat (20) which is a hollow rotating body and is rotatably arranged in the switch chamber (13), wherein the peripheral wall of the switch seat (20) is provided with a first flow hole (21) and a second flow hole (22), wherein during the rotation of the switch seat (20), either the first flow hole (21) or the second flow hole (22) functions as a water inlet hole of the switch seat (20) to correspond to the position of the water inlet (14), wherein the other of the two flow holes (21, 22) functions as a water outlet hole of the switch seat (20) to correspond to the position of a water outlet (15), wherein the water flow coming from the water inlet (14) is introduced into the switch chamber (13) via the water inlet hole and flows to a water outlet (15) via the water outlet hole; a push-operated drive mechanism (30) arranged on the housing (10), wherein the switch seat (20) is driven to rotate by a predetermined angle by pressing the push-operated drive mechanism (30) once, so that the water outlet hole is continuously connected to a corresponding water outlet (15) by switching, wherein the switch seat (20) rotates about the axis of the switch chamber (13) and the push-operated drive mechanism (30) is movable back and forth along the axial direction of the switch chamber (13), wherein the water inlet (14) and the water outlets (15) are arranged along the radial direction of the switch chamber (13);wherein the housing (10) has a main body (11) and a cover (12), wherein the switching chamber (13), the water inlet (14) and the at least two water outlets (15) are attached to the main body (11), the upper wall of the main body (11) is provided with an opening of the switching chamber (13), the sealing cap of the cover (12) is connected to the opening of the switching chamber (13), and the cover (12) is provided with a through hole through which the drive section of the push-to-operate drive mechanism (30) protrudes from the switching chamber (13), wherein; the push-actuated drive mechanism (30) comprises a switching axis (31), a return axis (32), an elastic return element (33) and a guide axis (34), wherein the cover (12) is provided with an axis bushing (121) extending inwardly along the axial direction of the switching chamber (13), an opening (23) is formed at the end near the opening of the switching chamber (13) in the axial direction of the switching seat (20), a bottom wall (24) is attached to the end remote from the opening of the switching chamber (13), the bottom wall (24) of the switching seat (20) is provided with a water flow hole (241), a center hole 242 is attached in the center of the bottom wall (24) of the switching seat (20), a switching bushing (25) extends axially inwardly from the circumference of the center hole (242), the axis bushing (121) extends over the opening of the switching seat in the switch seat (20) is inserted, the switch bushing (25) is inserted into the axle bushing (121),the switching axis (31), the reset axis (32), the guide axis (34), the axis bushing (121) and the switching seat (20) are coaxial in the space formed by the section of the switching axis (31) located in the switching chamber (13) and the bottom wall (24) of the reset axis (32) located on the axis bushing (121) and on the switching seat (20) enclosing it, the switching axis (31) and the reset axis (32) slide axially along the guide axis (34), the switching axis (31) and the reset axis (32) abut one another axially and the elastic return element (33) serves to provide an axial return force for the switching axis (31) and the reset axis (32), a plurality of equidistantly arranged first projecting blocks (1211) are mounted on the inner wall of the axle bushing (121), wherein a first inclined return surface (12111) is mounted on the bottom surface of a respective first projecting block (1211) and a first sliding slot (1212) is mounted between each two adjacent first projecting blocks (1211); a plurality of equidistantly arranged second projecting blocks (311) are mounted on the end of the switching axis (31) located in the switching chamber (13), wherein the second projecting blocks (311) are slidably arranged in the first sliding slot (1212) and a first inclined switching surface (3111) is mounted on the bottom surface of each second projecting block (311); a plurality of equidistantly arranged third projecting blocks (321) are mounted on the outer peripheral wall of the return axis (32), wherein a second inclined return surface (3211) is mounted on the upper surface of a respective third projecting block (321) and a second inclined button (3212) is mounted on the bottom surface of a respective third projecting block (321); a plurality of equidistantly arranged fourth projecting blocks (251) are mounted on the inner peripheral wall of the switching sleeve (25), a third inclined button (2511) is mounted on the upper surface of each fourth projecting block (251), a second sliding slot (252) is mounted between each two adjacent fourth projecting blocks (251), the third projecting blocks (321) are slidable in the corresponding second sliding slots (252), and a plurality of equidistantly arranged fourth inclined buttons (253) are mounted on the upper end surface of the switching sleeve (25); wherein, when the switching axis (31) is driven, the second inclined buttons (3212) of the reset axis (32) cooperate with the third inclined buttons (2511) of the switching sleeve (25) to drive the switching seat (20) to rotate through a first angle, then the third projecting blocks (321) of the reset axis (32) slide into the corresponding second sliding slots (252), whereby the first inclined buttons (3111) of the switching axis (31) correspond to the fourth inclined buttons (253), and accordingly, when the switching axis (31) continues to be driven, the first inclined buttons (3111) of the switching axis (31) cooperate with the fourth inclined buttons (253) to drive the switching seat (20) in the same direction to rotate through a second angle, the sum of the first angle and the second angle being the predetermined angle,wherein, after the drive force exerted on the switching axis (31) is removed, the switching axis (31) and the reset axis (32) are reset under the action of the elastic return element (33), so that the second projecting blocks (311) of the switching axis (31) slide into the corresponding first sliding slots (1212) and the third projecting blocks (321) of the reset axis (32) slide out of the corresponding second sliding slots (252), wherein the second inclined return surfaces (3211) of the return axis (32) and the first inclined return surfaces (12111) of the axis bushing (121) abut one another, so that the reset axis (32) is rotated to the position in which the second inclined buttons (3212) of the reset axis (32) correspond to the third inclined buttons (2511) of the switching bushing (25); wherein the number of the first protruding blocks (1211), the second protruding blocks (311), the third protruding blocks (321) and the fourth protruding blocks (251) are the same. [2] A water-saving push-to-operate water flow switching structure according to claim 1, characterized by that the two axial ends of the switching seat (20) are each continuously connected to the switching chamber (13). [3] Water-saving push-to-operate water flow switching structure according to claim 1, characterized byin that the water inlet (14) and the water outlets (15) are arranged opposite each other and the first flow hole (21) and the second flow hole (22) are arranged opposite each other, wherein, if one of the first flow hole (21) and the second flow hole (22) corresponds to the position of the water inlet (14), the other of the two flow holes (21, 22) - first flow hole (21) and second flow hole (22) - corresponds to the position of a water outlet (15). [4] A water-saving push-to-operate water flow switching structure according to claim 1, characterized byin that the lower end of the guide shaft (34) is delimited by the main body (11) and the upper end protrudes from the cover (12) via the through hole, wherein the switching shaft (31) and the reset shaft (32) surround the guide shaft (34) and the elastic reset element (33) is a compression spring which is accommodated in the inner cavity of the reset shaft (32) and surrounds the guide shaft (34) and whose one end rests on the reset shaft (32) and whose other end rests on the guide shaft (34). [5] A water-saving push-to-operate water flow switching structure according to claim 1, characterized by that the number of water inlets (14) is one, the number of water outlets (15) is three and the number of the first projecting blocks (1211), the second projecting blocks (311), the third projecting blocks (321) and the fourth projecting blocks (251) is six each. [6] A water-saving push-to-operate water flow switching structure according to claim 1, characterized by that the outer wall of the switching seat (20) is provided with a sealing element (40) around the water outlet hole or the inner peripheral wall of the switching chamber (13) is provided with a sealing element (40) around the water outlets (15), wherein the water outlet hole and the water outlets (15) are continuously connected to one another in a sealing manner by the sealing element (40). [7] A water-saving push-to-operate water flow switching structure according to claim 1, characterized by that the size of the water inlet (14) in the circumferential direction of the switching chamber (13) is equal to the size of the at least two water outlets (15) in the circumferential direction of the switching chamber (13). [8] A water-saving push-to-operate water flow switching structure according to claim 1, characterized bythat the water inlet (14) is provided with a filter net (50), wherein the filter net (50) is formed integrally with the housing (10).

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