CN108273679B

CN108273679B - Thin shower head and waterway switching device

Info

Publication number: CN108273679B
Application number: CN201810225113.XA
Authority: CN
Inventors: 林逢德; 张明富; 王添明; 陈文兴
Original assignee: Xiamen Solex High Tech Industries Co Ltd
Current assignee: Xiamen Solex High Tech Industries Co Ltd
Priority date: 2018-03-19
Filing date: 2018-03-19
Publication date: 2024-08-06
Anticipated expiration: 2038-03-19
Also published as: CN108273679A

Abstract

The invention provides a thin shower head and a waterway switching device. The waterway switching device comprises a body, a switching shaft and a driving mechanism. The body is provided with a hollow part, a water inlet end and a water outlet end, and at least two waterways communicated with the hollow part are arranged at the water outlet end. The switching shaft is arranged in the body and comprises a water diversion section positioned in the hollow part and a traction section extending out of the water outlet end. The driving mechanism is arranged outside the body and used for driving the switching shaft to reciprocate along the axial direction so as to enable the switching shaft to switch between at least two switching positions, wherein each switching position correspondingly opens at least one waterway. The driving mechanism comprises a driving piece and a unidirectional rotation device connected with the driving piece and the switching shaft.

Description

Thin shower head and waterway switching device

Technical Field

The invention relates to a thin shower head and a waterway switching device.

Background

In daily life, water valves such as a shower head and a faucet are often required to regulate the output of water flow, and along with the development of the water valves, some water valves comprise a plurality of waterways and can be switched among the waterways. Taking a shower as an example, the existing shower generally comprises a handle and a shower nozzle, wherein the shower nozzle is connected to one end of the handle, and a water inlet pipe can be communicated with the other end of the shower nozzle; the water flow can enter the spray head through the handle and is sprayed out through the water outlet hole on the spray head. Meanwhile, the inside of the spray head is provided with a plurality of waterways and a switching device, and water flows can be switched among different waterways through the switching device so as to realize different water outlet functions.

However, the switching device is arranged in the spray head, and a space for installing the switching device is required to be arranged in the spray head, which can lead to the large size of the spray head, and the internal structure of the spray head is too complex, so that the maintenance is not facilitated.

The above information disclosed in the background section is only for enhancement of understanding of the background of the invention and therefore it may contain information that does not form the prior art that is already known to a person of ordinary skill in the art.

Disclosure of Invention

An object of the present invention is to overcome the above-mentioned drawbacks of the prior art and to provide a waterway switching device capable of switching waterways.

Another object of the present invention is to overcome the above-mentioned drawbacks of the prior art and to provide a thin shower head which can reduce the size of the shower head and is easy to maintain.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

According to one aspect of the present invention, a waterway switching device includes a body, a switching shaft, and a driving mechanism. The body is provided with a hollow part, a water inlet end and a water outlet end, wherein the water outlet end is provided with at least two waterways communicated with the hollow part. The switching shaft is arranged in the body and comprises a water diversion section positioned in the hollow part and a traction section extending out of the water outlet end. The driving mechanism is arranged outside the body and is used for driving the switching shaft to reciprocate along the axial direction so as to enable the switching shaft to switch between at least two switching positions, wherein each switching position correspondingly opens at least one waterway. The driving mechanism comprises a driving piece and a unidirectional rotation device connected with the driving piece and the switching shaft.

According to an embodiment of the present invention, the waterway switching device further includes a reciprocating member, and the driving member may be connected to the unidirectional rotation device through the reciprocating member.

According to an embodiment of the invention, the at least two waterways are formed of at least two separate water tubes.

According to an embodiment of the invention, the driving mechanism is arranged on the water pipe.

According to one embodiment of the present invention, the water outlet end of the body is formed with a supporting portion, and the driving mechanism is disposed on the supporting portion.

According to an embodiment of the present invention, the unidirectional rotation device includes a driving wheel and a driven wheel. The driving wheel is connected with the reciprocating moving piece and can swing under the drive of the reciprocating moving piece, and the lower surface of the driving wheel is provided with driving ratchets. The driven wheel is arranged below the driving wheel, the upper surface of the driven wheel is provided with driven ratchets meshed with the driving ratchets, and the driven wheel can rotate unidirectionally along with the rotation of the driving wheel, so that the switching shaft is driven to reciprocate.

According to one embodiment of the invention, the unidirectional rotation device further comprises a limiting pawl, the limiting pawl is arranged on the supporting part, a limiting ratchet is arranged on the periphery of the driven wheel, and the limiting pawl is matched with the limiting ratchet to prevent the driven wheel from reversely rotating.

According to an embodiment of the present invention, the driven wheel is connected to the switching shaft, and the unidirectional rotation device further includes a gland and a positioning elastic member. The gland is arranged above the driving wheel and connected with the supporting part. The positioning elastic piece is arranged between the gland and the driving wheel and is used for applying downward acting force to the driving wheel.

According to one embodiment of the invention, the water diversion section is positioned in the hollow part, the traction section extends out of the water outlet end, the reciprocating moving part comprises a sliding block, the sliding block is arranged on the supporting part and can linearly reciprocate, the sliding block is provided with a driving groove, the upper surface of the driving wheel is provided with a driving poking pin which is matched with the driving groove to stretch into the driving groove, and the sliding block can drive the driving wheel to reciprocate within a preset angle through the driving groove and the poking pin.

According to an embodiment of the present invention, the reciprocating member further includes a reset elastic member, and the reset elastic member is disposed between the slider and the water outlet end, and is configured to apply a force to the slider away from the water outlet end.

According to an embodiment of the invention, the preset angle is 90 °.

According to an embodiment of the present invention, the waterway switching device further includes a linkage member connecting the unidirectional rotation device and the traction section, the linkage member including a top end portion and a connection portion. The top is located from the driving wheel below, just the top is equipped with the traction groove, the lower surface from the driving wheel is equipped with the cooperation and stretches into the driven poking pin of traction groove, from the driving wheel can pass through driven poking pin with the traction groove drives the linkage reciprocating motion. The connecting portion is connected to the top end portion and connected to the traction section.

According to an embodiment of the invention, the connecting part comprises two clamping claws, two clamping grooves which are symmetrically distributed are arranged on the periphery of the traction section, and the two clamping claws are clamped in the two clamping grooves.

According to an embodiment of the present invention, the linkage further includes a guide portion, where the guide portion is connected to the top end portion and is located at a side of the connection portion away from the water outlet end; the guide part comprises two guide claws, and the two guide claws are in sliding fit with the supporting part.

According to an embodiment of the invention, the driving member comprises a swing link and a button. One end of the swing rod is hinged to the supporting portion, and the other end of the swing rod can be contacted with one end, away from the water outlet end, of the sliding block. The button can be hinged to the body and can press the swing rod, so that the sliding block moves towards the water outlet end.

According to an embodiment of the present invention, the driving member is a push button, the push button is slidably connected to the body, and the push button is connected to the slider and can move synchronously.

According to an embodiment of the invention. The thin shower head comprises a handle and a shower head positioned at one end of the handle, wherein any waterway switching device is arranged in the handle, and the waterway is communicated with the shower head.

According to the technical scheme, the invention has at least one of the following advantages and positive effects:

In the waterway switching device, the driving piece drives the unidirectional rotation device to enable the linkage piece to reciprocate, so that the switching shaft is driven to reciprocate, the switching shaft is switched between at least two switching positions, and at least one waterway is opened to guide water flow to pass through. In the process, the unidirectional rotation device can convert unidirectional rotation into reciprocating movement of the switching shaft, and switching force required by unidirectional rotation every time is consistent, so that a user can feel consistent when switching operation every time, abrupt change of the switching force is avoided, and operation is more comfortable.

In the thin shower head, the waterway switching device is arranged in the handle of the shower head, so that the internal space of the handle is utilized, the switching device is not arranged in the shower head of the shower head, the size of the shower head can be reduced, the shower head is thinner, and the size of the handle is not increased. Meanwhile, the waterway switching device is separated from the structure in the spray head, so that the waterway switching device is convenient to replace or maintain independently.

Drawings

The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

FIG. 1 is an exploded view of an embodiment of the waterway switching device of the present invention;

FIG. 2 is an assembly view of the water circuit switching device of FIG. 1;

FIG. 3 is an internal schematic view of the body of the water circuit switching device of FIG. 1;

FIG. 4 is a schematic view of the bottom of the body of the water circuit switching device of FIG. 1;

FIG. 5 is a cross-sectional view of the water circuit switching device of FIG. 1;

FIG. 6 is a schematic diagram of the switching shaft of the water circuit switching device of FIG. 1 displaced by a first switching bit;

FIG. 7 is a schematic diagram of a second switching bit of the switching shaft of the water circuit switching device of FIG. 1;

FIG. 8 is a schematic diagram of a third shift position of the shift shaft of the water circuit shift device of FIG. 1;

FIG. 9 is a schematic diagram of a drive wheel of the unidirectional rotation device of the water circuit switching device of FIG. 1;

FIG. 10 is a schematic view of a driven wheel of the unidirectional rotation device of the water circuit switching device of FIG. 1;

FIG. 11 is an exploded view of another embodiment of the waterway switching device of the present invention;

FIG. 12 is a cross-sectional view of the water circuit switching device of FIG. 11;

Fig. 13 is a schematic view of a thin shower head according to an embodiment of the present invention;

fig. 14 is a schematic view showing an internal structure of the thin shower head according to the embodiment of the present invention.

In the figure: 1. a body; 11. a base; 111. an exhaust hole; 12. a cover plate; 13. a waterway; 131. a clamping jaw; 14. a support part; 141. a limiting piece; 101. a valve housing; 102. a valve body; 1021. a first water passing port; 1022. a second water passing port; 1011. a water inlet cavity; 1012. a first water outlet cavity; 1013. a second water outlet cavity; 1014. a water inlet; 1015. a first water outlet; 1016. a second water outlet; 1017. a water distribution cavity; 2. a switching shaft; 201. a chute; 21. switching the convex ring; 22. a first sealing collar; 23. a second sealing collar; 24. a clamping groove; 3. a reciprocating member; 31. a slide block; 311. a driving groove; 32. a return elastic member; 4. a unidirectional rotation device; 41. a driving wheel; 411. an active pin pulling device; 412. a driving ratchet; 42. driven wheel; 421. a driven ratchet; 422. a driven poking pin; 423. limit ratchets; 43. a limit pawl; 44. a gland; 441. positioning a shaft; 45. positioning an elastic piece; 5. a linkage member; 51. a distal end portion; 511. a traction groove; 52. a claw; 53. a guide claw; 6. a driving member; 61. swing rod; 611. a torsion spring; 62. a button; 7. a handle; 8. a spray head; 9. and (3) a joint.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus detailed descriptions thereof will be omitted.

Although relative terms such as "upper" and "lower" are used in this specification to describe the relative relationship of one component of an icon to another component, these terms are used in this specification for convenience only, such as in terms of the orientation of the examples described in the figures. It will be appreciated that if the device of the icon is flipped upside down, the recited "up" component will become the "down" component. Other relative terms such as "top," "bottom," and the like are also intended to have similar meanings. When a structure is "on" another structure, it may mean that the structure is integrally formed with the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure through another structure.

The terms "a," "an," "the," and "said" are used to indicate the presence of one or more elements/components/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. in addition to the listed elements/components/etc.; the terms "first," "second," and "third," etc. are used merely as labels, and do not limit the number of their objects.

The invention provides a waterway switching device which can be used for a shower, a tap or other water valves capable of waterway switching. The following description will be made by taking a shower head as an example, and the shower head may include a handle and a shower head, where the shower head may be connected to one end of the handle, and the other end of the handle may be connected to a water inlet pipe.

As shown in fig. 1 to 4, fig. 1 to 4 show an embodiment of the waterway switching device of the present invention, and the waterway switching device of the present embodiment may include a body 1, a switching shaft 2, and a driving mechanism.

As shown in fig. 1, in the present embodiment, the body 1 may be formed by splicing a base 11 and a cover 12, and the base 11 and the cover 12 may be detachably connected by welding, clamping, or using a screw connection, etc. Meanwhile, the body 1 may have a hollow portion, and the body 1 may have a water inlet end and a water outlet end, the water inlet end may be provided with a joint 9, the joint 9 may be connected with a water inlet pipe, and water flow in the water inlet pipe may enter the hollow portion of the body 1 through the joint 9. The water outlet end can be communicated with two mutually independent waterways 13, the two waterways 13 can be two mutually independent water pipes, and water flow in the hollow part can flow out of the body 1 through one of the two water pipes or through the two water pipes at the same time. The outer side of the water outlet end of the body 1 may be formed with a supporting part 14, the water pipe and the supporting part 14 may be of an integrated structure, the supporting part 14 may include two supporting bodies and two connecting bodies, and the two supporting bodies are respectively formed on the surfaces of the two water pipes; the two connectors are connected between the two supporting bodies, and a space which is vertically penetrated is arranged between the two connectors. The outer wall of the water pipe can be further provided with clamping jaws 131, and after the water pipe is installed in the handle of the shower head, the clamping jaws 131 can be matched with clamping grooves in the handle, so that the water pipe can be fixed conveniently.

Of course, the water pipe and the support portion 14 may be separate structures connected by a snap-fit connection or the like, or the water pipe and the support portion 14 may be separate structures. In other embodiments of the present invention, the number of the waterways 13 may be three or more, and only two waterways 13 are illustrated as an example in the embodiments of the present invention.

As shown in fig. 3 and 6, a hollow valve housing 101 may be formed in the hollow portion of the body 1, and one end of the valve housing 101 may be connected to the inner surface of the water outlet end, and the other end is close to the water inlet end and abuts against one end of the joint 9 extending into the body 1. The outer circumference of the valve housing 101 may be formed with a partition plate so that the hollow part may be partitioned into the inlet chamber 1011, the first outlet chamber 1012 and the second outlet chamber 1013 by the valve housing 101. One waterway 13 communicates with the first water outlet chamber 1012, and the other waterway 13 communicates with the second water outlet chamber 1013. Meanwhile, the periphery of the valve housing 101 is provided with a water inlet 1014, a first water outlet 1015 and a second water outlet 1016, wherein the first water outlet 1015 is positioned at one side of the water inlet 1014 close to the water outlet end, and the second water outlet 1016 is positioned at one side of the water inlet 1014 close to the water inlet end. And the water inlet 1014 is located in the water inlet 1011, the first water outlet 1015 is located in the first water outlet 1012, and the second water outlet 1016 is located in the second water outlet 1013.

As shown in fig. 3 and 5, a valve body 102 having two ends penetrating is provided in the valve housing 101, an annular step is formed in the valve housing 101, one end of the valve body 102 abuts against one side of the step near the water inlet 1014, and the other end abuts against the joint 9. The base 11 is provided with the exhaust hole 111, and one end of the valve body 102, which is close to the water inlet end, can be communicated with the external atmosphere through the exhaust hole 111, so that the switching shaft 2 is prevented from being blocked by the air pressure when moving towards the water inlet end, and the switching shaft 2 can move smoothly. The periphery of the valve body 102 is provided with a first water passing port 1021 and a second water passing port 1022, the first water passing port 1021 is communicated with the water inlet 1014, and the second water passing port 1022 is communicated with the second water outlet 1016. The space in the valve housing 101 on the side of the step away from the water inlet end is penetrated by the interior of the valve body 102 and forms a water dividing chamber 1017. The water flow can enter the water inlet cavity 1011 from the water inlet end and enter the water diversion cavity 1017 from the water inlet 1014, and the water flow entering the water diversion cavity 1017 can enter the first water outlet cavity 1012 from the first water outlet 1015 or enter the second water outlet cavity 1013 from the second water outlet 1016.

As shown in fig. 1, 5 to 6, in the present embodiment, the switching shaft 2 may have a water diversion section and a traction section, and the water diversion section may extend from the water outlet end of the body 1 into the hollow portion of the body 1 and into the water diversion cavity 1017; the traction section can extend out of the water outlet end of the body 1, and the switching shaft 2 can reciprocate linearly along the axial direction of the switching shaft 2 by traction of the traction section of the switching shaft 2. The outer circumference of the water diversion section may be formed with a switching collar 21, a first sealing collar 22 and a second sealing collar 23, the first sealing collar 22 being located on one side of the switching collar 21 near the traction section and the second sealing collar 23 being located on the other side. The outer circumferences of the switching convex ring 21, the first sealing convex ring 22 and the second sealing convex ring 23 can be provided with sealing rings so as to be in sliding sealing fit with the inner wall surface of the water diversion cavity 1017. In addition, the thickness of the switching collar 21 is smaller than the width of the water inlet 1014, so that the switching collar 21 cannot completely shield the water inlet 1014.

The following exemplifies the process of dividing the switching shaft 2:

As shown in fig. 6, when the switching shaft 2 moves to the first switching position, the switching collar 21 moves between the first water outlet 1015 and the water inlet 1014, and the first water outlet 1015 and the water inlet 1014 may be blocked. At this time, the first water outlet 1015 is closed, the second water outlet 1016 is opened, and the water flowing from the water inlet 1011 into the water distribution 1017 can be output to the second water outlet 1013 only from the second water outlet 1016, and then flows out from the corresponding waterway 13.

As shown in fig. 7, when the switching shaft 2 moves to the second switching position, the switching collar 21 moves to a position facing the water inlet 1014, and the first water outlet 1015 and the second water outlet 1016 communicate with the water inlet 1014 at the same time, and at this time, both waterways 13 can output water.

As shown in fig. 8, when the switching shaft 2 moves to the third switching position, the switching collar 21 moves between the second water outlet 1016 and the water inlet 1014, and can separate the second water outlet 1016 from the water inlet 1014, at this time, the first water outlet 1015 is opened, the second water outlet 1016 is closed, and the water flow in the water diversion cavity 1017 can be output to the second water outlet 1013 only from the first water outlet 1015 and flow out from the corresponding waterway 13.

It should be noted that, during the above movement of the switching shaft 2, the first sealing collar 22 always moves at the side of the first water outlet 1015 away from the water inlet 1014, and the second sealing collar 23 always moves at the side of the second water outlet 1016 away from the water inlet 1014, so as to prevent water leakage at both ends of the water distribution chamber 1017.

In other embodiments of the invention, the switching shaft 2 can also be switched between four or more switching bits, wherein each switching bit opens at least one waterway 13, which is not described in detail here.

As shown in fig. 1 and 2, in the present embodiment, the driving mechanism may be disposed outside the water outlet end of the main body 1, and may be disposed on the supporting portion 14 or directly disposed on two water pipes, and of course, may be disposed partially on the supporting portion 14, and the other portion may be disposed on two water pipes. The driving mechanism can comprise a reciprocating moving part 3, a unidirectional rotating device 4, a linkage part 5 and a driving part 6, wherein the driving part 6 can drive the reciprocating moving part 3 to reciprocate, and the reciprocating moving part 3 can drive the unidirectional rotating device 4 to intermittently rotate in one direction so as to drive the linkage part 5 to reciprocate, and the linkage part 5 is connected with a traction section of the switching shaft 2 so as to drive the switching shaft 2 to reciprocate. Wherein:

As shown in fig. 2, the shuttle 3 may include a slider 31 and a return elastic member 32, wherein:

The sliding block 31 may be strip-shaped, and the supporting portion 14 may be provided with a guide rail parallel to the switching shaft 2, and the sliding block 31 may be slidably fitted on the guide rail and may reciprocate linearly along the guide rail. Meanwhile, a driving groove 311 may be formed at one side of the slider 31 near the switching shaft 2. Of course, the guide rail may be disposed in other directions, and accordingly, the slider 31 may be linearly reciprocated in other directions.

The reset elastic member 32 may be a spring, and may be disposed between the slider 31 and the water outlet end of the body 1, where one end abuts against the slider 31 and the other end abuts against the body 1, so that a force far away from the water outlet end can be applied to the slider 31 all the time, so as to reset the slider 31. Meanwhile, the body 1 and the sliding block 31 can be provided with opposite guide posts, and the spring can be sleeved outside the two guide posts, so that the spring is positioned. Of course, the return elastic member 32 may also be a rubber sleeve or other elastic member, which is not shown here.

As shown in fig. 1 and 2, the unidirectional rotation device 4 may include a driving wheel 41, a driven wheel 42, a limit pawl 43, a pressing cover 44, and a positioning elastic member 45, wherein:

As shown in fig. 2 and 5, two limiting members 141 may be formed on the supporting portion 14, the two limiting members 141 are located on one side of the slider 31 near the switching shaft 2, and the two limiting members 141 may be located on two connecting bodies of the supporting portion 14, respectively, and a space between the two connecting bodies may expose a traction section of the switching shaft 2. The driving wheel 41 may be disposed between the two limiting members 141, and the outer periphery of the driving wheel 41 is rotatably matched with the surface of the limiting member 141. Meanwhile, the upper surface of the driving wheel 41 may be provided with an active poking pin 411, and the active poking pin 411 is eccentrically disposed, i.e., disposed at one side of the center of the driven wheel 42 and may be matched to extend into the driving slot 311. When the slider 31 reciprocates, the driving wheel 41 can be driven to reciprocate within a preset angle by the driving poking pin 411, and the preset angle can be 90 degrees, but not limited to this, and can be other angles. Further, the lower surface of the driving wheel 41 is provided with driving ratchet 412.

As shown in fig. 2 and 5, the driven wheel 42 may be provided below the driving wheel 41, and an upper surface of the driven wheel 42 may be provided with driven ratchet teeth 421, the driven ratchet teeth 421 being engaged with the driving ratchet teeth 412. When the driving wheel 41 rotates in the forward direction, the driven wheel 42 can be driven to rotate in the forward direction, and when the driving wheel 41 rotates in the reverse direction, the driven wheel 42 does not move, so that the driven wheel 42 can only rotate intermittently in one direction. The above-mentioned forward rotation may be counterclockwise rotation or clockwise rotation, and is not particularly limited herein, depending on the structures of the driven ratchet 421 and the driving ratchet 412. Meanwhile, the lower surface of the driven wheel 42 may be provided with a driven poking pin 422, and the driven poking pin 422 is eccentrically disposed, i.e., disposed at one side of the center of the driven wheel 42. Further, a limit ratchet 423 is provided on the outer periphery of the driven pulley 42.

As shown in fig. 2, the limiting pawl 43 may be disposed on the supporting portion 14 and located on a side of the driven wheel 42 away from the slider 31, where the limiting pawl 43 may be engaged with the limiting ratchet 423, and the limiting pawl 43 may block the driven wheel 42 from rotating in a reverse direction, so as to ensure that the driven wheel 42 can only rotate in a unidirectional direction.

As shown in fig. 1 and 5, the pressing cover 44 may be provided above the driving wheel 41, and a positioning shaft 441 is formed at a lower surface of the pressing cover 44, and the positioning shaft 441 may pass through the driving wheel 41 and penetrate the driven wheel 42, and both the driving wheel 41 and the driven wheel 42 may rotate around the positioning shaft 441. Meanwhile, the pressing cover 44 may be connected to the two stoppers 141 of the supporting portion 14 by screws, and of course, the pressing cover 44 may be connected to the supporting portion 14 by other means such as clamping.

As shown in fig. 1 and 5, the positioning elastic member 45 may be a spring, which may be sleeved outside the positioning shaft 441, and one end may abut against the gland 44, and the other end abuts against the driving wheel 41. The pressing cover 44 applies downward pressure to the capstan 41 via the spring, and resets the capstan 41. The positioning elastic member 45 may be other elastic members such as a rubber sleeve, which are not described herein.

As shown in fig. 1, 2, 4 and 5, the link 5 may include a tip portion 51, a connecting portion and a guide portion, wherein:

The tip portion 51 may be a flat plate structure, which may be disposed below the driven wheel 42 and fit with the lower surface of the driven wheel 42. The top end 51 may be provided with a traction groove 511, and the driven poking pin 422 may be fitted into the traction groove 511. Meanwhile, the tip portion 51 may be located between and slidably engaged with or disengaged from the two supporting bodies of the supporting portion 14.

The connection portion may be provided on the lower surface of the distal end portion 51, and may be connected to the distal end portion 51 by a snap fit or by a bolt connection, or may be integrally formed with the distal end portion 51. Meanwhile, the connection portion may include two jaws 52, and the traction section of the switching shaft 2 may be clamped between the two jaws 52. The outer periphery of the traction section may be provided with two clamping grooves 24, the two clamping grooves 24 may be symmetrically arranged about the central axis of the switching shaft 2, and the two clamping claws 52 may be respectively clamped in the two clamping grooves 24, so that the traction section and the connecting portion may be detachably connected.

As shown in fig. 4, the guide portion may be provided on the lower surface of the distal end portion 51, and may be connected to the distal end portion 51 by a fastening or a bolt connection, or may be integrally formed with the distal end portion 51. Meanwhile, the guide part is positioned at one side of the connecting part far away from the water outlet end, and a gap is reserved between the guide part and the connecting part. The guiding portion may include two guiding claws 53, and the two guiding claws 53 may pass through the space of the two connector pieces of the supporting portion 14, where the bottoms of the two guiding claws 53 are formed with hooks extending outwards, and the hooks of the two guiding claws 53 are in one-to-one corresponding sliding fit with the bottoms of the two supporting bodies of the supporting portion 14.

When the driven wheel 42 rotates in one direction, the driven poking pin 422 drives the top end 51 to reciprocate linearly, so that the switching shaft 2 is driven to reciprocate through the connecting part. If the preset angle of rotation of the driving wheel 41 is 90 °, the angle of each rotation of the driven wheel 42 is 90 °, and each time the driven wheel 42 rotates 90 °, the driven poking pin 422 of the driven wheel 42 drives the switching shaft 2 to move a switching position, for example, from a first switching position to a second switching position, or from the second switching position to a third switching position, from the third switching position to the second switching position, etc., through the linkage member 5.

In another embodiment of the present invention, the driving mechanism may not include the above-mentioned linkage 5, as shown in fig. 11 and 12, the traction section of the switching shaft 2 may be provided with a sliding slot 201, and the driven poking pin 422 of the driven wheel 42 may be matched to extend into the sliding slot 201, and may directly drive the switching shaft 2 to reciprocate when the driven wheel 42 rotates unidirectionally.

In other embodiments of the present invention, the driving wheel 41 may be a gear, and the sliding block 31 may be a rack, where the gear is meshed with the rack, and when the sliding block 31 moves reciprocally, the driving wheel 41 may also be driven to swing reciprocally. Thereby obviating the use of the active shifting pin 411 and the driving slot 311 described above.

As shown in fig. 2 and 12, in the present embodiment, the driving member 6 may include a swing link 61 and a button 62, wherein:

one end of the swing rod 61 may be hinged to the supporting portion 14, and the other end may contact with one end of the slider 31 away from the water outlet end of the body 1, and may push the slider 31 to move toward the water inlet end by rotating the swing rod 61.

The button 62 may be hinged to the supporting portion 14 or may be hinged to the handle 7, and the pressing of the button 62 may drive the swing rod 61 to rotate, so as to push the slider 31 to move. When the waterway switching device of the present embodiment is applied to the handle 7 of the shower head, the button 62 may be provided at the joint between the shower head 8 and the handle 7 and exposed to the outside, and the user may move the switching shaft 2 by pressing the button 62 only to switch the waterway 13.

In another embodiment, the driving member 6 may also be a push button which is slidably connected to the body 1 and which is connectable to the slider 31 and is movable synchronously with the slider 31. When the waterway switching device of the embodiment is applied to the handle of the shower, the handle can be provided with an opening, and the push button can extend out of the opening and can slide in the opening. The user only needs to stir the push button to enable the switching shaft 2 to move, and the switching of the waterway 13 is achieved.

In other embodiments of the present invention, the driving member 6 may have other structures, as long as the driving member can drive the slider 31 to move toward the water inlet end, which is not illustrated herein. Alternatively, the driving wheel 41 can be directly driven to rotate by the driving member 6, and the reciprocating member 3 can be omitted.

In the embodiment of the present invention, the switching shaft 2 is moved by the rotation of the driving wheel 42 and the driven wheel 41, so that the switching force of the switching shaft 2 is ensured to be the same, the quick return phenomenon caused by adopting a crank block and other mechanisms is avoided, the idle stroke caused by adopting an automatic pen transmission mechanism is avoided, and the user can realize the switching of the waterway by only pressing the button 62.

According to the waterway switching device of the embodiment of the invention, the driving piece 6 drives the unidirectional rotation device 4 to enable the linkage piece 5 to reciprocate, so that the switching shaft 2 is driven to reciprocate, the switching shaft 2 is switched between at least two switching positions, and at least one waterway 13 is opened to guide water flow to pass through. In the process, the unidirectional rotation device 4 can convert unidirectional rotation into reciprocating movement of the switching shaft 2, and switching force required by unidirectional rotation each time is consistent, so that the hand feeling of a user for switching operation each time is consistent, abrupt change of the switching force is avoided, and the operation is more comfortable.

As shown in fig. 13 and 14, the embodiment of the present invention further provides a thin shower head, which may include a handle 7 and a nozzle 8, wherein the nozzle 8 is connected to one end of the handle 7, and the other end of the handle 7 may be provided with a connector 9, and the connector 9 may be connected to a water inlet pipe. The handle 7 may be provided therein with the waterway switching device of any of the above embodiments. Wherein two waterways 13 may be in communication with the spray head 8.

The thin shower head according to the exemplary embodiment of the present invention, in which the waterway switching device according to the above-described embodiment is installed in the handle 7 of the shower head, can make full use of the inner space of the handle 7, and avoid the need to install the switching device in the head 8 of the shower head, is advantageous in reducing the size of the head 8, and does not increase the size of the handle 7. Simultaneously, install waterway switching device in the handle 7 of gondola water faucet, still can make waterway switching device and the structure in the shower nozzle 8 separate, be convenient for change alone or maintenance.

It should be understood that the invention is not limited in its application to the details of construction and the arrangement of components set forth in the specification. The invention is capable of other embodiments and of being practiced and carried out in various ways. The foregoing variations and modifications are intended to fall within the scope of the present invention. It should be understood that the invention disclosed and defined in this specification extends to all alternative combinations of two or more of the individual features mentioned or evident from the text and/or drawings. All of these different combinations constitute various alternative aspects of the present invention. The embodiments described in this specification illustrate the best mode known for carrying out the invention and will enable those skilled in the art to make and use the invention.

Claims

1. A waterway switching device, comprising:

the body is provided with a hollow part, a water inlet end and a water outlet end, wherein the water outlet end is provided with at least two waterways communicated with the hollow part;

The switching shaft is arranged in the body and comprises a water diversion section positioned in the hollow part and a traction section extending out of the water outlet end;

The driving mechanism is arranged outside the body and used for driving the switching shaft to reciprocate along the axial direction so as to enable the switching shaft to switch between at least two switching positions, wherein each switching position correspondingly opens at least one waterway,

The driving mechanism comprises a driving piece and a unidirectional rotation device connected with the driving piece and the switching shaft;

The waterway switching device further comprises a reciprocating moving part, and the driving part can be connected with the unidirectional rotating device through the reciprocating moving part;

the water outlet end of the body is provided with a supporting part, and the driving mechanism is arranged on the supporting part;

wherein, unidirectional rotation device includes:

the driving wheel is connected with the reciprocating moving piece and can swing under the drive of the reciprocating moving piece, and a driving ratchet is arranged on the lower surface of the driving wheel;

The driven wheel is arranged below the driving wheel, the upper surface of the driven wheel is provided with driven ratchets meshed with the driving ratchets, and the driven wheel can rotate unidirectionally along with the rotation of the driving wheel so as to drive the switching shaft to reciprocate;

Wherein, from the driving wheel connect in traction section, unidirectional rotation device still includes:

The gland is arranged above the driving wheel and connected with the supporting part;

The positioning elastic piece is arranged between the gland and the driving wheel and is used for applying downward acting force to the driving wheel.

2. The waterway switching device of claim 1, wherein the at least two waterways are formed of at least two independent water tubes.

3. The waterway switching device of claim 2, wherein the drive mechanism is disposed on the water tube.

4. The waterway switching device of claim 1, wherein the unidirectional rotation device further comprises:

The limiting pawl is arranged on the supporting part, a limiting ratchet is arranged on the periphery of the driven wheel, and the limiting pawl is matched with the limiting ratchet to prevent the driven wheel from reversely rotating.

5. The waterway switching device of claim 1, wherein the shuttle includes:

The sliding block is arranged on the supporting part and can linearly reciprocate, the sliding block is provided with a driving groove, the upper surface of the driving wheel is provided with a driving poking pin which is matched with the driving groove to stretch into the driving groove, and the sliding block can drive the driving wheel to reciprocate in a preset angle through the driving groove and the poking pin.

6. The waterway switching device of claim 5, wherein the shuttle further includes:

and the reset elastic piece is arranged between the sliding block and the water outlet end and is used for applying acting force away from the water outlet end to the sliding block.

7. The waterway switching device of claim 5, wherein the predetermined angle is 90 °.

8. The waterway switching device of claim 1, further comprising a linkage connecting the unidirectional rotation device and the traction segment, the linkage comprising:

The top end part is arranged below the driven wheel, the top end part is provided with a traction groove, the lower surface of the driven wheel is provided with a driven poking pin which stretches into the traction groove in a matched mode, and the driven wheel can drive the linkage piece to reciprocate through the driven poking pin and the traction groove;

And the connecting part is connected with the top end part and is connected with the traction section.

9. The waterway switching device according to claim 8, wherein the connecting portion includes two claws, two symmetrically distributed clamping grooves are formed in the periphery of the traction section, and the two claws are clamped in the two clamping grooves.

10. The waterway switching device of claim 8, wherein the linkage further includes a guide portion connected to the top portion and located on a side of the connection portion away from the water outlet end; the guide part comprises two guide claws, and the two guide claws are in sliding fit with the supporting part.

11. The waterway switching device of claim 5, wherein the driver includes:

one end of the swing rod is hinged to the supporting part, and the other end of the swing rod can be contacted with one end of the sliding block away from the water outlet end;

The button can be hinged to the body and can press the swing rod so that the sliding block moves towards the water outlet end.

12. The waterway switching device of claim 5, wherein the driving member is a push button slidably coupled to the body, and the push button is coupled to the slider and is movable in synchronization.

13. A thin shower head, comprising a handle and a shower head positioned at one end of the handle, wherein the handle is internally provided with the waterway switching device according to any one of claims 1 to 12, and the waterway is communicated with the shower head.