A shower head and its push-dial switching structure

Abstract

The present invention provides a shower head and a push-pull switching structure thereof, comprising: a main body, provided with a water inlet channel and a plurality of water outlet channels; a plurality of switching valves, each switching valve comprising a matching switching valve seat and a switching valve core, the switching valve seat being fixedly arranged on the main body and provided with a switching valve cavity connected with the water inlet channel, the water inlet channel being connected with the corresponding water outlet channel through a switching valve port of the switching valve cavity; a switching member being mounted on the main body along a straight line for sliding, the switching member being provided with a driving track extending along a sliding direction of the switching member, the switching valve core being provided with a switching matching portion matched with the driving track, when the switching member slides, the switching matching portion moves relative to the switching member along the driving track, when the switching member is driven to the point where the driving portion on the driving track corresponds to the switching matching portion of the switching valve core, the switching member drives the switching valve core to open the switching valve port, and when the switching member is driven to the point where the driving portion and the switching matching portion of the switching valve core are staggered, the switching member drives the switching valve core to close the switching valve port.

Description

Technical Field

[0001] The invention relates to a shower head and a push-dial switching structure thereof. Background Art

[0002] Showers in the prior art generally have at least two water outlet functions, and these water outlet functions can be switched by operating the control switch to drive the water outlet function switching structure. At present, some of the existing water outlet function switching structures use a ballpoint pen switching structure, and some use a ratchet and ratchet switching structure, among which the ballpoint pen switching structure is for example the "shower with a spray gun water function" disclosed in the Chinese utility model patent with announcement number CN220004461U; the ratchet and ratchet switching structure is for example the "shower push rod switching water outlet structure" disclosed in the Chinese utility model patent with announcement number CN206343294U. The above-mentioned water outlet function switching structures in the prior art are relatively complex and difficult to assemble. Summary of the invention

[0003] The purpose of the present invention is to provide a new shower push-dial switching structure which has a simple structure and is easy to assemble.

[0004] To achieve the above object, the technical solution adopted by the present invention is:

[0005] A push-dial switching structure for a shower head, comprising:

[0006] A main body, having a water inlet channel and a plurality of water outlet channels;

[0007] A plurality of switching valves, each of which comprises a matching switching valve seat and a switching valve core, wherein the switching valve seat is fixedly arranged on the main body and has a switching valve cavity connected to the water inlet channel, each of which is provided with a switching valve port, the water inlet channel is connected to the corresponding water outlet channel through the switching valve port, and each of which opens or closes the switching valve port correspondingly when the switching valve core moves relative to the switching valve seat;

[0008] A switching member is installed on the main body along a straight line sliding direction, and a driving track extending along the sliding direction of the switching member is provided on the switching member, and at least one driving part is provided on the driving track, and the switching valve core is provided with a switching matching part matching with the driving track. When the switching member slides, the switching matching part moves relative to the switching member along the driving track, and when the switching member is driven to the position where the driving part corresponds to the switching matching part of the switching valve core, the switching member drives the switching valve core to open the switching valve port, and when the switching member is driven to the position where the driving part and the switching matching part of the switching valve core are staggered, the switching member drives the switching valve core to close the switching valve port, and a sealing part is provided on the switching member to match the opening and closing of the switching valve port, and a sealing ring is provided on the sealing part.

[0009] According to the push-pull switching structure of the above scheme, a switching member provided with a driving track is used to control the opening and closing of the valve ports of each switching valve, which is ingenious in conception and simple in structure. Specifically, by providing a driving part on the driving track, and providing a switching matching part that matches the driving track on the switching valve core, when the switching member slides, the switching matching part moves relative to the switching member along the driving track, and when the switching member is driven to the position where the driving part corresponds to the switching matching part of the switching valve core, the switching member drives the switching valve core to open the switching valve port, and when the switching member is driven to the position where the driving part and the switching matching part of the switching valve core are staggered, the switching member drives the switching valve core to close the switching valve port, which has a simple structure, reliable switching control, and convenient assembly.

[0010] In a preferred or optional embodiment, the main body has a sliding cavity for the switching member to slide, and the side wall of the sliding cavity is provided with a plurality of through ports corresponding to each of the switching valve cavities, each of the switching valve cavities is connected to the sliding cavity through the corresponding through ports, and each of the switching mating parts extends into the sliding cavity through the through ports to cooperate with the switching member, and when the switching member cooperates with the switching mating part, the switching valve core is restricted from escaping from the switching valve cavity.

[0011] In the above scheme, a sliding cavity for the switching member to slide is provided in the main body, so that each switching valve cavity is connected to the sliding cavity through a corresponding through-port, so that the switching matching part of each switching valve core can be extended into the sliding cavity through the corresponding through-port to be linked with the same switching member, so that the linkage structure is very simple and compact. In addition, since the switching member can directly limit the switching valve core from escaping from the switching valve cavity when it is installed in the sliding cavity and matched with the switching matching part, the installation limit of the switching valve core is realized, and the installation is simpler and faster.

[0012] In a preferred or optional embodiment, the switching valve core slides relative to the switching valve seat, and the sliding direction of the switching valve core is perpendicular to the sliding direction of the switching member, the driving track is a rib extending along the sliding direction of the switching member, and the driving part is a convex part on the driving track that protrudes away from the switching valve port.

[0013] In the above scheme, the driving track is designed as a rib extending along the sliding direction of the switching member, and the driving part is designed as a convex part on the driving track that protrudes away from the switching valve port. In this way, when the convex part corresponds to the position of the switching matching part of the switching valve core, it can drive the switching member to move in the direction away from the switching valve port, thereby opening the switching valve port. Conversely, it can be understood that when the convex part and the switching matching part of the switching valve core are staggered in position, it can drive the switching member to move in the direction close to the switching valve port, thereby closing the switching valve port. The switching action is conceived very cleverly and the switching structure is simple.

[0014] In a preferred or optional embodiment, the protrusion includes a boss and a first slope and a second slope connected to both ends of the boss, the area on the drive rail except the protrusion is defined as a reset portion, the two ends of the boss are respectively connected to the reset portion through the first slope and the second slope, and the protrusion is trapezoidal.

[0015] In the above solution, by providing the first slope and the second slope, the switching matching portion of the switching valve core can smoothly move over the convex portion along the driving track, so that the external force value of the driving switching member is small.

[0016] In a preferred or optional embodiment, first inclined surfaces are respectively formed on both sides of the first slope, second inclined surfaces are respectively formed on both sides of the second slope, the switching matching part includes two blocks spaced apart in the sliding direction of the switching valve core, a slide groove is formed between the two blocks, the ribs are slidably matched with the slide groove, and the two blocks are respectively provided with a third inclined surface matched with the first inclined surface on the corresponding side, and a fourth inclined surface matched with the second inclined surface on the corresponding side.

[0017] In the above scheme, the switching matching part is designed to include two blocks spaced apart in the sliding direction of the switching valve core, a sliding groove matching the driving track is formed between the two blocks, and a third inclined surface and a fourth inclined surface are provided on the blocks. The switching matching part has a simple structure and can slide smoothly relative to the driving track, so that the external force value of the driving switching component is small.

[0018] In a preferred or optional embodiment, a pause valve is further included, the pause valve comprising a matching pause valve seat and a pause valve core, the pause valve seat is fixedly arranged on the main body and has a pause valve cavity, the pause valve cavity is located between the water inlet channel and the switching valve cavity of each switching valve, a pause valve port is arranged in the pause valve cavity, the switching member links the pause valve core to open or close the pause valve port through the driving part; when the pause valve core opens the pause valve port, the water inlet channel is connected to the switching valve cavity of the switching valve through the pause valve port; when the pause valve core closes the pause valve port, the water inlet channel cannot be connected to the switching valve cavity of the switching valve through the pause valve port;

[0019] In a preferred or optional embodiment, the pause valve core is provided with a pause matching portion matching with the driving portion, and the structure of the pause matching portion is the same as that of the switching matching portion.

[0020] In a preferred or optional embodiment, two driving tracks are arranged side by side in the left-right direction on the switching member, and the switching valves are arranged in two rows on the left and right sides and are respectively located on the left and right sides of the switching member, the driving track on the left side cooperates with the switching valve on the left side, and the driving track on the right side cooperates with the switching valve on the right side. When the switching member slides, it alternately drives the switching valve cores of the switching valves on the left and right sides, and then alternately opens the switching valve ports of the switching valves on the left and right sides.

[0021] In the above scheme, by providing two rows of driving tracks and two rows of switching valves, the switching member can be subjected to force on both the left and right sides during the sliding process, so that the force is balanced and the driving feel is better.

[0022] In a preferred or optional embodiment, a pause valve is further included, the pause valve comprising a matching pause valve seat and a pause valve core, the pause valve seat is fixedly arranged on the main body and has a pause valve cavity, the pause valve cavity is located between the water inlet channel and the switching valve cavity of each switching valve, a pause valve port is provided in the pause valve cavity, the switching member links the pause valve core to open or close the pause valve port through the driving part; when the pause valve core opens the pause valve port, the water inlet channel is connected with the switching valve cavity of the switching valve through the pause valve port; when the pause valve core closes the pause valve port, the water inlet channel cannot be connected with the switching valve cavity of the switching valve through the pause valve port.

[0023] In the above scheme, by setting a pause valve, the shower head has the function of pausing water, and the functions are more diverse. In addition, the control opening and closing of the pause valve is similar to the control opening and closing of the switching valve, and the switching member is also used to open or close the pause valve port by linking the pause valve core through the driving part. In this way, the pause valve can be arranged side by side with the switching valve, and the structure is simple and compact.

[0024] In a preferred or optional embodiment, it also includes a return spring arranged between the main body and the switching member, which drives the switching member to overcome the elastic force of the return spring so that after the switching member drives the pause valve core to open the pause valve port, the pause valve core is maintained at the position of opening the pause valve port and abuts the switching member under the action of the water flow pressure in the water inlet channel, and the switching member is maintained at the specified position under the action of the friction force generated by the abutment with the pause valve core, and when the water inlet channel stops and the external force applied to the switching member is removed, the return spring drives the switching member to return to the initial position of closing the pause valve.

[0025] In the above scheme, by setting a reset spring, when the water inlet channel stops water (for example, closing a control valve located upstream of the shower to control the water flow through the water inlet channel, etc.), the switching element can be reset to the initial water pause position, so that each time it is used, the initial state is the water pause state, which provides a better user experience.

[0026] In a preferred or optional embodiment, the switching valve core is a switching shaft, which slides in a sliding direction perpendicular to the switching member, and the switching shaft is provided with a sealing portion that cooperates with the opening and closing of the switching valve port. The switching shaft is provided with a first sealing portion and a second sealing portion on both sides of the sealing portion, respectively. The switching shaft is sealingly and slidingly matched with the cavity wall of the switching valve cavity through the first sealing portion and the second sealing portion. The first sealing portion is located between the sealing portion and the switching matching portion, and the outlet of the switching valve cavity is provided on the side wall of the switching valve cavity between the second sealing portion and the sealing portion.

[0027] In the above scheme, the switching valve core is designed to include a switching matching part, a first sealing part, a blocking part, and a second sealing part which are arranged in sequence. With this design, when the switching valve core opens the switching valve port, the water flow pressures in the switching valve cavity exerted on the first sealing part and the second sealing part can offset each other. Therefore, when driving the switching valve core to close the switching valve port, there is no need to overcome the water flow pressure, and switching is more labor-saving.

[0028] In addition, the present invention also provides a shower head, including a shower head and a handle, wherein the shower head is provided with any one of the push-dial switching structures described above, and the handle is provided with a push button, and the push button is transmission-coordinated with the switching member through a transmission member. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings described herein are used to provide further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0030] in:

[0031] Figure 1 This is one of the three-dimensional assembly schematic diagrams of the push-dial switching structure of the shower head according to one embodiment of the present invention;

[0032] Figure 2 This is the second three-dimensional assembly diagram of the push-dial switching structure of the shower head according to one embodiment of the present invention;

[0033] Figure 3 This is one of the three-dimensional exploded schematic diagrams of the push-dial switching structure of the shower head according to one embodiment of the present invention;

[0034] Figure 4 This is the second three-dimensional exploded schematic diagram of the push-dial switching structure of the shower head according to one embodiment of the present invention;

[0035] Figure 5 This is the third three-dimensional exploded schematic diagram of the push-dial switching structure of the shower head according to one embodiment of the present invention;

[0036] Figure 6 This is one of the partial schematic diagrams of the push-dial switching structure of the shower head according to one embodiment of the present invention;

[0037] Figure 7 This is a second partial schematic diagram of the push-dial switching structure of a shower head according to an embodiment of the present invention;

[0038] Figure 8 is a cross-sectional view of a push-dial switching structure of a shower head according to an embodiment of the present invention;

[0039] Fig. 9 It is a three-dimensional schematic diagram of a push-dial switching structure of a shower head in an embodiment of the present invention in a pause valve closed state;

[0040] Fig.10 is a cross-sectional view of a push-dial switching structure of a shower head in an embodiment of the present invention in a pause valve closed state;

[0041] Fig.11 It is a three-dimensional schematic diagram of a push-dial switching structure of a shower head according to an embodiment of the present invention in a pause valve open state, and a fourth switching valve in an open state;

[0042] Fig.12 It is a cross-sectional view of a push-dial switching structure of a shower head according to an embodiment of the present invention, in which the pause valve is in an open state, and the fourth switching valve is in an open state;

[0043] Fig.13 This is one of the schematic diagrams of the installation process of the push-dial switching structure of the shower head according to one embodiment of the present invention (at this time, the switching member is not installed in the sliding cavity);

[0044] Fig.14 yes Fig.13 A cross-sectional view of

[0045] Fig.15 yes Fig.13 Stereoscopic image of

[0046] Fig.16 This is the second schematic diagram of the installation process of the push-dial switching structure of the shower head according to one embodiment of the present invention (at this time, the switching member is installed in the sliding cavity);

[0047] Fig.17 yes Fig.16 A cross-sectional view of

[0048] Fig.18 is a schematic diagram of the three-dimensional structure of a switching member according to an embodiment of the present invention;

[0049] Fig.19 This is one of the three-dimensional structural schematic diagrams of a switching valve core according to an embodiment of the present invention;

[0050] Fig. 20 This is a second schematic diagram of the three-dimensional structure of the switching valve core according to an embodiment of the present invention;

[0051] Fig.21 is a partial cross-sectional view of the push-dial switching structure of the shower head according to another embodiment of the present invention, when the switching member is at the frontmost initial position (at this time, the pause valve and the switching valve are both in the closed position);

[0052] Fig. 22 It is a partial cross-sectional view of the push-dial switching structure of a shower head according to another embodiment of the present invention when the switching member is at the rearmost end (at this time, the pause valve and the fourth switching valve are in the open position, and the first, second and third switching valves are in the closed position).

[0053] The accompanying drawings in the figure are marked as follows:

[0054] 10-main body; 11-water inlet channel; 12-sliding cavity; 121-through port; 13-guide groove; 14-pressure cover; 15-water outlet channel;

[0055] 20-switching valve; 21-switching valve seat; 211-switching valve cavity; 2111-switching valve cavity outlet; 212-switching valve port; 22-switching valve core; 221-switching matching part; 2211-block; 22111-third inclined surface; 22112-fourth inclined surface; 2212-sliding groove; 222-blocking part; 223-first sealing part; 224-second sealing part; 225-guide rod;

[0056] 30-switching member; 31-driving track; 311-driving part; 3111-boss; 3112-first slope; 31121-first inclined plane; 3113-second slope; 31131-second inclined plane; 312-resetting part; 32-positioning groove;

[0057] 40-pause valve; 41-pause valve seat; 411-pause valve cavity; 412-pause valve port; 42-pause valve core; 421-pause matching part;

[0058] 50-elastic pin assembly; 60-push button; 70-transmission rod; 80-reset spring. DETAILED DESCRIPTION

[0059] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0060] See also Figures 1 to 20A preferred embodiment of the present invention provides a push-dial switching structure for a shower head, comprising:

[0061] The main body 10 has a water inlet channel 11 and a plurality of water outlet channels 15, each of which is connected to a corresponding water outlet (not shown) of the shower head;

[0062] A plurality of switching valves 20, each of which includes a matching switching valve seat 21 and a switching valve core 22. The switching valve seat 21 is fixed to the main body 10 and has a switching valve cavity 211 connected to the water inlet channel 11. Each switching valve cavity 211 is provided with a switching valve port 212. The water inlet channel 11 is connected to the corresponding water outlet channel 15 through the switching valve port 212. When each switching valve core 22 moves relative to the switching valve seat 21, each switching valve port 212 is correspondingly opened or closed.

[0063] The switching member 30 is installed on the main body 10 along a straight line sliding direction. The switching member 30 is provided with a driving track 31 extending along the sliding direction of the switching member 30. The driving track 31 is provided with a driving part 311. The switching valve core 22 is provided with a switching matching part 221 matching with the driving track 31. When the switching member 30 slides, the switching matching part 221 moves relative to the switching member 30 along the driving track 31. When the switching member 30 is driven until the driving part 311 corresponds to the position of the switching matching part 221 of the switching valve core 22, the switching member 30 drives the switching valve core 22 to open the switching valve port 212. When the switching member 30 is driven until the driving part 311 is staggered with the position of the switching matching part 221 of the switching valve core 22, the switching member 30 drives the switching valve core 22 to close the switching valve port 212.

[0064] The switching member 30 provided with a driving track 31 is used to control the opening and closing of the valve ports of each switching valve 20, which is ingenious in design and simple in structure. Specifically, by providing a driving part 311 on the driving track 31, and providing a switching matching part 221 matching the driving track 31 on the switching valve core 22, when the switching member 30 slides, the switching matching part 221 moves relative to the switching member 30 along the driving track 31, and when the switching member 30 is driven to the position where the driving part 311 corresponds to the switching matching part 221 of the switching valve core 22, the switching member 30 drives the switching valve core 22 to open the switching valve port 212, and when the switching member 30 is driven to the position where the driving part 311 is staggered with the switching matching part 221 of the switching valve core 22, the switching member 30 drives the switching valve core 22 to close the switching valve port 212, which has a simple structure and reliable switching control.

[0065] In this embodiment, the main body 10 has a sliding cavity 12 for the switching member 30 to slide, and a plurality of through ports 121 corresponding to each switching valve cavity 211 are provided on the side wall of the sliding cavity 12. Each switching valve cavity 211 is connected to the sliding cavity 12 through the corresponding through ports 121, and each switching matching portion 221 extends into the sliding cavity 12 through the through ports 121 to cooperate with the switching member 30. The sliding cavity 12 for the switching member 30 to slide is provided in the main body 10, so that each switching valve cavity 211 is connected to the sliding cavity 12 through the corresponding through ports 121, so that the switching matching portion 221 of each switching valve core 22 can extend into the sliding cavity 12 through the corresponding through ports 121 to cooperate with the same switching member 30, and the linkage structure is very simple and compact. In addition, since the switching member 30 is installed in the sliding cavity 12 and cooperates with the switching matching portion 221, it can directly limit the switching valve core 22 from escaping from the switching valve cavity 211, thereby realizing the installation limit of the switching valve core 22, and the installation is simpler and faster.

[0066] In this embodiment, the switching valve core 22 slides relative to the switching valve seat 21, and the sliding direction of the switching valve core 22 is perpendicular to the sliding direction of the switching member 30. The driving track 31 is a rib extending along the sliding direction of the switching member 30, and the driving part 311 is a convex part protruding from the driving track 31 in the direction away from the switching valve port 212. The driving track 31 is designed as a rib extending along the sliding direction of the switching member 30, and the driving part 311 is designed as a convex part protruding from the driving track 31 in the direction away from the switching valve port 212. In this way, when the convex part corresponds to the switching matching part 221 of the switching valve core 22, the switching member 30 can be driven to move in the direction away from the switching valve port 212, thereby opening the switching valve port 212. On the contrary, it can be understood that when the convex part is staggered with the switching matching part 221 of the switching valve core 22, the switching member 30 can be driven to move in the direction close to the switching valve port 212, thereby closing the switching valve port 212. The switching action is very cleverly conceived and the switching structure is simple.

[0067] In this embodiment, the convex portion includes a boss 3111 and a first slope 3112 and a second slope 3113 connected to both ends of the boss 3111. The area on the driving track 31 other than the convex portion is defined as a reset portion 312. Both ends of the boss 3111 are connected to the reset portion 312 through the first slope 3112 and the second slope 3113, respectively. The convex portion is trapezoidal. By providing the first slope 3112 and the second slope 3113, the switching matching portion 221 of the switching valve core 22 can smoothly move over the convex portion along the driving track 31, so that the external force value of the driving switching member 30 is small.

[0068] In this embodiment, first inclined surfaces 31121 are formed on both sides of the first slope 3112, and second inclined surfaces 31131 are formed on both sides of the second slope 3113. The switching matching portion 221 includes two blocks 2211 spaced apart in the sliding direction of the switching valve core 22, a slide groove 2212 is formed between the two blocks 2211, and the ribs are slidably matched with the slide groove 2212. The two blocks 2211 are respectively provided with a third inclined surface 22111 matched with the first inclined surface 31121 on the corresponding side, and a fourth inclined surface 22112 matched with the second inclined surface 31131 on the corresponding side, and the third inclined surface 22111 and the fourth inclined surface 22112 on each block 2211 form an acute angle. The switching matching part 221 is designed to include two blocks 2211 spaced apart in the sliding direction of the switching valve core 22, a slide groove 2212 matching with the driving track 31 is formed between the two blocks 2211, and a third inclined surface 22111 and a fourth inclined surface 22112 forming an acute angle are provided on the blocks 2211. The switching matching part 221 has a simple structure and can slide smoothly relative to the driving track 31, so that the external force value of the driving switching member 30 is small.

[0069] In this embodiment, two drive rails 31 are arranged side by side on the switching member 30 in the left-right direction. Four switching valves 20 are provided, namely, a first switching valve, a second switching valve, a third switching valve and a fourth switching valve. The four switching valves 20 are arranged in two rows on the left and right sides of the switching member 30 in sequence, that is, two switching valves 20 are provided on each side. Fig.10 , the first and third switching valves are located on the right side of the switching member 30, and the second and fourth switching valves are located on the left side of the switching member 30. The driving track 31 on the left side cooperates with the two switching valves 20 on the left side, and the driving track 31 on the right side cooperates with the two switching valves 20 on the right side. When the switching member 30 slides, the switching valve cores 22 of the switching valves 20 on the left and right sides are alternately driven, and then the switching valve ports 212 of the switching valves 20 on the left and right sides are alternately opened. It can be understood that the number of switching valves 20 is not limited to this, and 3, 5, 6 or more switching valves can also be set. By adopting the switching method of the switching member 30 of the present invention, the number of switching valves 20 can be set as needed, and the structure is simple and compact. By setting two rows of driving tracks 31 and two rows of switching valves 20, the switching member 30 can be subjected to force on both sides during the sliding process, the force is balanced, and the driving feel is better.

[0070] In the present embodiment, one driving unit 311 is provided on each driving track 31. It is understandable that more than two driving units 311 may be provided on each driving track 31. The arrangement may be flexibly performed according to the manner of opening and closing the switching valve 20. For example, more than two driving units 311 may be used to simultaneously open a plurality of switching valves 20 at some gear positions of the switching member 30, thereby realizing water discharge from multiple waterways.

[0071] In this embodiment, a pause valve 40 is also included. The pause valve 40 includes a matching pause valve seat 41 and a pause valve core 42. The pause valve seat 41 is fixed to the main body 10 and has a pause valve cavity 411. The pause valve cavity 411 is located between the water inlet channel 11 and the switching valve cavity 211 of each switching valve 20. A pause valve port 412 is provided in the pause valve cavity 411. The switching member 30 links the pause valve core 42 through the driving part 311 to open or close the pause valve port 412. When the pause valve core 42 opens the pause valve port 412, the water inlet channel 11 is connected to the switching valve cavity 211 of the switching valve 20 through the pause valve port 412. When the pause valve core 42 closes the pause valve port 412, the water inlet channel 11 cannot be connected to the switching valve cavity 211 of the switching valve 20 through the pause valve port 412. By setting the pause valve 40, the shower head has the function of pausing water, and the functions are more diverse. In addition, the control opening and closing of the pause valve 40 is similar to the control opening and closing of the switching valve 20. The switching member 30 also uses the method of linking the pause valve core 42 with the driving part 311 to open or close the pause valve port 412. In this way, the pause valve 40 can be arranged side by side with the switching valve 20, with a simple and compact structure.

[0072] More specifically, in order to simplify the structure of the pause valve 40, preferably, the pause valve core 42 is provided with a pause matching portion 421 matching with the driving portion 311, and the structure of the pause matching portion 421 is the same as that of the switching matching portion 221. The structure of the pause matching portion 421 is not repeated here, and it can refer to the structure of the switching matching portion 221.

[0073] In this embodiment, a gear position positioning structure is also provided for positioning the switching position of the switching member 30. Specifically, the gear position positioning structure includes five positioning grooves 32 provided on the switching member 30, and a pin assembly 50 provided on the main body 10, the pin assembly 50 includes an elastic member and a positioning pin, and the positioning pin extends into the sliding cavity 12 of the main body 10 to cooperate with the positioning groove 32. The five positioning grooves 32 correspond to four switching valves and one pause valve, respectively. Specifically, when the driving part 311 of the switching member 30 corresponds to the position of the switching matching part 221 of the switching valve core 22, or when the driving part 311 of the switching member 30 corresponds to the position of the pause matching part 421 of the pause valve core 42, the positioning pin of the pin assembly 50 is positioned and matched with the corresponding positioning groove 32, so that the switching member 30 is positioned at the gear position without moving.

[0074] In this embodiment, the switch member 30 is manually driven to the selected gear position. After the external force is removed, the switch member 30 remains in the currently selected gear position. The initial position of the switch member 30 when it is used next time is the end gear position of the previous use. Fig.21 and Fig. 22As shown, the following replacement settings can be made: the push-pull switching structure of the shower head also includes a reset spring 80 arranged between the main body 10 and the switching member 30. After the switching member 30 is driven to overcome the elastic force of the reset spring 80 so that the switching member 30 drives the pause valve core 42 to open the pause valve port 412, the pause valve core 42 is kept at the position of opening the pause valve port 412 under the water flow pressure of the water inlet channel 11 and abuts the switching member 30. The switching member 30 is kept at the specified position under the friction force generated by the abutment with the pause valve core 42. At this time, Fig. 22 As shown, the return spring 80 is in a state of being compressed by the switching member 30. Furthermore, when the water inlet channel 11 stops flowing and the external force applied to the switching member 30 is removed, the return spring 80 drives the switching member 30 to return to the initial position of closing the pause valve 40. At this time, as shown in FIG. Fig.21 As shown, the reset spring 80 is in the reset open state. By providing the reset spring, when the water inlet channel 11 stops water (for example, closing the control valve disposed upstream of the shower to control the water flow through the water inlet channel, etc.), the switching member 30 can be reset to the initial water suspension position, so that each time it is used, the initial state is the water suspension state, and the use experience is better.

[0075] In this embodiment, the switching valve core 22 is a switching shaft, which slides in a sliding direction perpendicular to the switching member 30. A sealing portion 222 is provided on the switching shaft to cooperate with the opening and closing of the switching valve port 212. A first sealing portion 223 and a second sealing portion 224 are respectively provided on both sides of the sealing portion 222 on the switching shaft. The switching shaft is sealed and slidably cooperated with the cavity wall of the switching valve cavity 211 through the first sealing portion 223 and the second sealing portion 224. The first sealing portion 223 is located between the sealing portion 222 and the switching cooperation portion 221. An outlet 2111 of the switching valve cavity is provided on the side wall of the switching valve cavity 211 between the second sealing portion 224 and the sealing portion 222. The switching valve core 22 is designed to include a switching matching part 221, a first sealing part 223, a blocking part 222, and a second sealing part 224 which are arranged in sequence. In this way, when the switching valve core 22 opens the switching valve port 212, the water flow pressures in the switching valve cavity 211 exerted on the first sealing part 223 and the second sealing part 224 can offset each other. Therefore, when driving the switching valve core 22 to close the switching valve port 212, there is no need to overcome the water flow pressure, and switching is more labor-saving.

[0076] See also Fig.19 and Fig. 20 In order to make the switching valve core 22 more balanced in force and more stable in movement, it is preferred that a guide rod 225 is extended on one side of the switching matching portion 221, and a guide groove 13 matching with the guide rod 225 is provided on the main body 10 (see Figure 8 ).

[0077] See also Figure 1 , Figure 3 , Figure 4 and Figure 5 In this embodiment, the four switching valve chambers 211 are connected, and the main body includes a pressure cover 14 for sealing and connecting each switching valve chamber 211, and the pressure cover 14 is sealed by welding.

[0078] The following briefly describes the assembly process between the switching valve core 22 and the switching member 30 of this embodiment:

[0079] First, see Figure 13-Figure 15 , respectively sleeve the first sealing portion 223, the blocking portion 222, and the second sealing portion 224 of the switching valve core 22 with sealing rings and insert them into the corresponding switching valve cavity 211, and make each switching matching portion 221 extend into the sliding cavity 12 through the through port 121, and align each switching matching portion 221;

[0080] Then, see Fig.16 and Fig.17 , align the driving track 31 on the switching member 30 with the slide groove 2212 of the switching matching portion 221 and directly insert it into the sliding cavity 12 , thereby completing the assembly process between the switching valve core 22 and the switching member 30 .

[0081] The following briefly describes the working process of the push-dial switching structure of the shower head in this embodiment:

[0082] See also Fig. 9 and Fig.10 At this time, the switching member 30 is at the front end, the driving portion 311 of the switching member 30 corresponds to the position of the pause matching portion 421 of the pause valve core 42, the pause valve core 42 closes the pause valve port 412, and the push-pull switching structure of the shower is in the pause valve 40 closed state. The water flow in the water inlet channel 11 is cut off by the pause valve 40 and will not continue to flow into the switching valve chamber 211 of each switching valve 20.

[0083] exist Fig. 9 and Fig.10 In the state, along Fig. 9 and Fig.10 The switching member 30 is driven backward in the direction of the arrow in the figure. The driving part 311 on the switching member 30 moves backward with the switching member 30. The driving part 311 moves away from the pause matching part 421 of the pause valve 40, and drives the pause valve core 42 to open the pause valve port 412, so that the pause valve 40 is opened, and the water flow in the water inlet channel 11 can flow through the pause valve 40 to the switching valve cavity 211 of each switching valve 20. When the driving part 311 moves to the position corresponding to the switching matching part 221 of a switching valve core 22, the driving part 311 drives the switching valve core 22 to open the corresponding switching valve port 212, thereby opening the switching valve 20, and then realizing water flow in the water outlet channel 15 corresponding to the switching valve 20. See FIG. Fig.11 and Fig.12At this time, the driving part 311 moves to a position corresponding to the position of the switching matching part 221 of the fourth switching valve, that is, the fourth switching valve is in an open state at this time.

[0084] In addition, the present invention further provides a shower head, including a shower head (not shown) and a handle (not shown), wherein the shower head is provided with any one of the above push-dial switching structures, and the handle is provided with a push button 60, which is coupled to the switching member 30 through a transmission member. The transmission member is specifically a transmission rod 70, which is arranged in the handle and slides along the length direction of the handle, and the push button 60 is engaged with the transmission rod 70, and then the switching member 30 is driven to slide linearly through the transmission rod 70.

[0085] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A push-dial switch structure for a shower head, characterized in that: include: A main body having a water inlet channel and a plurality of water outlet channels; A plurality of switching valves, each of which comprises a matching switching valve seat and a switching valve core, wherein the switching valve seat is fixedly arranged on the main body and has a switching valve cavity connected to the water inlet channel, each of which is provided with a switching valve port, the water inlet channel is connected to the corresponding water outlet channel through the switching valve port, and each of which opens or closes the switching valve port correspondingly when the switching valve core moves relative to the switching valve seat; A switching member is installed on the main body along a straight line sliding direction, the switching member is provided with a driving track extending along the sliding direction of the switching member, the driving track is provided with at least one driving part, the switching valve core is provided with a switching matching part matching with the driving track, when the switching member slides, the switching matching part moves relative to the switching member along the driving track, when the switching member is driven to the position where the driving part corresponds to the switching matching part of the switching valve core, the switching member drives the switching valve core to open the switching valve port, when the switching member is driven to the position where the driving part and the switching matching part of the switching valve core are staggered, the switching member drives the switching valve core to close the switching valve port, the switching valve core is provided with a blocking part matching with the opening and closing of the switching valve port, and the blocking part is provided with a sealing ring; It also includes a pause valve, the pause valve includes a pause valve seat and a pause valve core that match each other, the pause valve seat is fixedly arranged on the main body and has a pause valve cavity, the pause valve cavity is located between the water inlet channel and the switching valve cavity of each switching valve, a pause valve port is arranged in the pause valve cavity, the switching member links the pause valve core to open or close the pause valve port through the driving part; when the pause valve core opens the pause valve port, the water inlet channel is connected to the switching valve cavity of the switching valve through the pause valve port; when the pause valve core closes the pause valve port, the water inlet channel cannot be connected to the switching valve cavity of the switching valve through the pause valve port; It also includes a return spring arranged between the main body and the switching member, which drives the switching member to overcome the elastic force of the return spring so that after the switching member drives the pause valve core to open the pause valve port, the pause valve core is maintained at the position of opening the pause valve port and abuts the switching member under the action of the water flow pressure in the water inlet channel, and the switching member is maintained at the specified position under the action of the friction force generated by the abutment with the pause valve core, and when the water inlet channel stops and the external force applied to the switching member is removed, the return spring drives the switching member to return to the initial position of closing the pause valve.

2. A push-dial switch structure for a shower head according to claim 1, characterized in that: The main body has a sliding cavity for the switching member to slide, and a plurality of through openings corresponding to the respective switching valve cavities are provided on the side wall of the sliding cavity. Each switching valve cavity is connected to the sliding cavity through the corresponding through opening, and each switching matching part extends into the sliding cavity through the through opening to cooperate with the switching member. When the switching member cooperates with the switching matching part, the switching valve core is restricted from escaping from the switching valve cavity.

3. A push-dial switch structure for a shower head according to claim 1, characterized in that: The switching valve core slides relative to the switching valve seat, and the sliding direction of the switching valve core is perpendicular to the sliding direction of the switching member. The driving track is a rib extending along the sliding direction of the switching member. The driving part is a convex part on the driving track that protrudes away from the switching valve port.

4. A push-dial switch structure for a shower head according to claim 3, characterized in that: The convex portion includes a boss and a first slope and a second slope connected to both ends of the boss. The area on the drive track except the convex portion is defined as a reset portion. The two ends of the boss are respectively connected to the reset portion through the first slope and the second slope. The convex portion is trapezoidal.

5. A push-dial switch structure for a shower head according to claim 4, characterized in that: A first inclined surface is formed on both sides of the first slope, and a second inclined surface is formed on both sides of the second slope. The switching matching portion includes two blocks arranged at intervals in the sliding direction of the switching valve core, a sliding groove is formed between the two blocks, the ribs are slidably matched with the sliding groove, and the two blocks are respectively provided with a third inclined surface matched with the first inclined surface on the corresponding side, and a fourth inclined surface matched with the second inclined surface on the corresponding side.

6. A push-dial switch structure for a shower head according to claim 5, characterized in that: The pause valve core is provided with a pause matching portion matching with the driving portion, and the structure of the pause matching portion is the same as that of the switching matching portion.

7. The push-dial switch structure of a shower head according to claim 1, characterized in that: Two driving tracks are arranged side by side in the left-right direction on the switching member, and the switching valves are arranged in two rows on the left and right sides of the switching member respectively. The driving track on the left side cooperates with the switching valve on the left side, and the driving track on the right side cooperates with the switching valve on the right side. When the switching member slides, it alternately drives the switching valve cores of the switching valves on the left and right sides, and then alternately opens the switching valve ports of the switching valves on the left and right sides.

8. The push-dial switch structure of a shower head according to claim 1, characterized in that: The switching valve core is a switching shaft, and the switching shaft slides in a sliding direction perpendicular to the sliding direction of the switching member. The switching shaft is provided with a first sealing portion and a second sealing portion on both sides of the blocking portion, respectively. The switching shaft is sealed and slidably matched with the cavity wall of the switching valve cavity through the first sealing portion and the second sealing portion. The first sealing portion is located between the blocking portion and the switching matching portion, and an outlet of the switching valve cavity is provided on the side wall of the switching valve cavity between the second sealing portion and the blocking portion.

9. A shower head, comprising a shower head and a handle, characterized in that: The shower head is provided with a push-dial switching structure as claimed in any one of claims 1 to 8, and the handle is provided with a push button, which is in transmission cooperation with the switching member through a transmission member.

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