CN116618197A - Push button switching mechanism and shower head - Google Patents

Abstract

The application discloses a push button switching mechanism and a shower head. The push button switching mechanism comprises a shell, a push button, a seat body, a sliding block, a crank rod and a valve core, wherein the push button comprises a push block propped against the outer wall of the shell and a deflector rod with one end connected with the push block and penetrating through a strip-shaped hole; the sliding block is arranged in the shell, connected to the deflector rod and provided with a first mounting hole; the crank rod is arranged in the shell, one end of the crank rod is rotatably connected with the seat body, and the other end of the crank rod penetrates through the first mounting hole; the case sets up in the shell, including the valve body and the switching lever that stretches out from the valve body, the axial arrangement of switching lever along the shell, and one end and the crank rod of switching lever adopt articulated contact point can follow the mode looks articulated of crank rod slip, and the switching lever can follow axial slip in the valve body. The push button switching mechanism has the advantages of labor saving, quick switching reaction, simple structure and small idle stroke.

Description

Push button switching mechanism and shower head

Technical Field

The application relates to a push button switching mechanism, in particular to a push button switching mechanism and a shower head, which are labor-saving and have small idle stroke.

Background

Chinese patent application publication No. CN217491274U, CN217646636U, CN113769908B proposes a shower head capable of switching waterways by pushing a push button. The water diversion switching mechanisms of the showers comprise push buttons, a transmission mechanism and a water diversion mechanism, wherein the push buttons are arranged at the handles of the showers, the water diversion mechanism is arranged at the rear part of the face cover of the shower, the push buttons and the water diversion mechanism are transmitted through the complex transmission mechanism, and a user drives the water diversion mechanism through the transmission mechanism when pushing the push buttons, so that water diversion switching is realized.

Because the grab handle of gondola water faucet size is little, and this kind of water diversion switching mechanism's structure is complicated, and bulky, be difficult to concentrate push button, drive mechanism and the water diversion mechanism of water diversion switching mechanism and set up on the grab handle, the gondola water faucet of size less is inapplicable.

Meanwhile, the parts of the water diversion switching mechanism are more, each part has a fit clearance, a plurality of fit clearances are overlapped to cause a larger idle stroke in the pushing process, and the switching response is slower.

The water diversion switching mechanism is not only affected by the change of the water pressure, but also has no assistance of a labor-saving mechanism, the pushing button is relatively laborious to operate, and the user experience is poor.

Disclosure of Invention

In view of the above problems, the technical solution of the embodiment of the present application is as follows:

a push button switching mechanism comprising:

a housing configured in a cylindrical shape, provided with a bar-shaped hole penetrating the housing, the length of the bar-shaped hole extending in a direction parallel to the axis of the housing;

the push button comprises a push block propped against the outer wall of the shell and a deflector rod with one end connected with the push block and penetrating through the strip-shaped hole;

the base body is fixed in the shell and is provided with an axially extending slideway;

the sliding block is arranged in the shell, connected to the deflector rod and provided with a first mounting hole, and is in sliding connection with the slideway;

the crank rod is arranged in the shell, one end of the crank rod is rotatably connected with the seat body, and the other end of the crank rod penetrates through the first mounting hole; and

the valve core is arranged in the shell and comprises a valve body and a switching rod extending out of the valve body, the switching rod is arranged along the axial direction of the shell, one end of the switching rod is hinged with the crank rod in a mode that a hinged contact point can slide along the crank rod, and the switching rod can slide along the axial direction in the valve body;

wherein the hinge contact point between the switch lever and the crank lever is located between the contact point between the first mounting hole and the crank lever and the rotational connection point between the crank lever and the housing.

A shower head comprises the push button switching mechanism.

The push button switching mechanism of the embodiment of the application has the beneficial effects that:

the push button, the sliding block, the crank rod and the switching rod of the push button switching mechanism form a crank sliding block mechanism. The user promotes the button along the axial of shell, and the button can be followed the reciprocal slip of bar hole of shell, and the button drives the slider and follows the reciprocal slip of slide way of pedestal, and the slider then drives the reciprocating swing of crank arm, and the reciprocating swing in-process of crank arm can push and pull the switching lever makes the switching lever reciprocate in the axial of shell to make the case switch between different operating condition.

Because the hinge contact point between the switching rod and the crank rod is positioned between the contact point between the first mounting hole of the sliding block and the crank rod and the rotation connection point between the crank rod and the seat body, the force arm of the force applied to the crank rod by the sliding block is larger than the force arm of the force applied to the switching rod by the crank rod, the crank rod is a labor-saving lever, the acting force required by a user for pushing the push button can be reduced, and the user can push the push button only by applying smaller force.

In particular, the push button switching mechanism has a simple and very compact structure, and besides the push button, the seat body, the sliding block, the crank rod and the valve core of the push button switching mechanism can be arranged in the cylindrical shell, so that the push button switching mechanism is applicable to even a shower head with a smaller size. Meanwhile, in the path of force transmitted from the push button to the switching rod, only fit clearances possibly exist between the sliding block and the crank rod and between the crank rod and the switching rod, so that the hollow stroke of the push button is extremely short or even no hollow stroke exists in the pushing process, the valve core switching response speed is high, and the user experience effect is good.

Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate and do not limit the application.

Fig. 1 is a schematic perspective view of a shower head according to an embodiment of the present application;

fig. 2 is a schematic front view of a shower head according to an embodiment of the present application;

FIG. 3 is a schematic bottom view of a shower head according to an embodiment of the present application;

fig. 4 is a right-side view schematically illustrating a shower head according to an embodiment of the present application;

fig. 5 is a schematic view illustrating a shower head according to an embodiment of the present application;

fig. 6 is a schematic perspective view of the shower head in the first water outlet state according to the embodiment of the present application;

fig. 7 is a schematic perspective view of the shower head in the second water outlet state according to the embodiment of the present application;

FIG. 8 is a schematic cross-sectional view in A-A direction of the shower head of FIG. 4 in a first water outlet state;

FIG. 9 is an enlarged partial schematic view at D1 in FIG. 8;

FIG. 10 is an enlarged partial schematic view at E1 in FIG. 8;

FIG. 11 is a schematic cross-sectional view in the direction B-B of the sprinkler of FIG. 4 in a first water outlet state;

FIG. 12 is a schematic cross-sectional view of the sprinkler of FIG. 8 in the C-C direction;

FIG. 13 is a schematic cross-sectional view in A-A direction of the sprinkler of FIG. 4 in a second water outlet state;

FIG. 14 is an enlarged partial schematic view at D2 in FIG. 13;

FIG. 15 is an enlarged partial schematic view at E2 in FIG. 13;

FIG. 16 is a schematic cross-sectional view in the direction B-B of the sprinkler of FIG. 4 in a second outlet water condition;

fig. 17 is a schematic perspective view of a push button in a front view according to an embodiment of the present application;

fig. 18 is a schematic perspective view of a push button in a back view according to an embodiment of the present application;

FIG. 19 is a schematic perspective view of a slider from a front perspective in accordance with an embodiment of the present application;

FIG. 20 is a schematic perspective view of a slider at a back view angle according to an embodiment of the present application;

fig. 21 is a schematic perspective view of a seat body in a front view according to an embodiment of the present application;

fig. 22 is a schematic perspective view of a base body in a back view according to an embodiment of the application;

FIG. 23 is a schematic perspective view of a crank arm from the rear perspective in an embodiment of the application;

FIG. 24 is a schematic perspective view of a crank arm from a front perspective in an embodiment of the application;

FIG. 25 is a schematic perspective view of a water outlet baffle according to an embodiment of the present application;

fig. 26 is a schematic perspective view of a switching lever according to an embodiment of the present application;

FIG. 27 is a schematic perspective view of a valve body in an embodiment of the application;

FIG. 28 is a schematic perspective view showing the assembly of the housing, the water dividing member and the water inlet member;

fig. 29 is a schematic view in full section of a sprinkler in another embodiment.

Reference numerals:

1-housing, 100-water outlet cavity, 110-bar hole, 120-mounting opening, 2-push button, 21-push block, 22-deflector rod, 221-snap groove, 3-housing, 30-water outlet, 31-slide, 311-guide rail, 32-hinge seat, 321-shaft hole, 33-vent hole, 34-yielding channel, 35-water inlet channel, 36-first mounting cavity, 37-second mounting cavity, 38-valve seat, 381-second inner cavity, 382-second inlet, 39-communication channel, 4-slider, 41-first mounting hole, 411-first side, 412-second side, 413-first buckle, 414-second buckle, 42-second mounting hole, 421-snap bump, 5-crank lever 53-groove, 54-spindle, 6-spool, 61-valve body, 611-first cavity, 612-vent groove, 613-first inlet, 614-first outlet, 615-straight bore, 62-switch lever, 622-spherical portion, 623-first limit bump, 624-second limit bump, 625-third limit bump, 626-fourth limit bump, 627-fifth limit bump, 63-first seal, 64-second seal, 65-third seal, 66-elastic member, 7-water separator, 71-flow channel, 9-water outlet cover, 91-first water outlet, 911-first water outlet, 92-second water outlet, 921-second water outlet, 10-water outlet baffle, 101-water outlet hole, 11-water inlet joint.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, embodiments of the present application will be described in detail hereinafter with reference to the accompanying drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Please refer to fig. 1 to 25, which illustrate a structure of a push button switching mechanism and a shower according to an exemplary embodiment of the present application.

As shown in fig. 1-7, an exemplary embodiment of the present application provides a shower head. The shower head comprises a push button switching mechanism, wherein the push button switching mechanism can switch the water outlet mode of the shower head, and the shower head can outlet water from different water outlets in different water outlet modes. The push button switching mechanism comprises a shell 1, a push button 2, a base 3, a sliding block 4, a crank rod 5 and a valve core 6.

The housing 1 is configured in a cylindrical shape, which may be a cylindrical shape. The side wall of the housing 1 is provided with a bar-shaped hole 110 penetrating the wall surface of the housing 1. The bar-shaped hole 110 is configured as a slit. The length direction of the cross section of the bar-shaped hole 110 is parallel to the axial direction of the housing 1.

As shown in fig. 17 and 18, the push button 2 includes a push block 21 and a lever 22. The pushing block 21 may be constructed in a substantially plate-like structure, and one plate surface of the pushing block 21 abuts against the outer wall of the housing 1. The push block 21 may be a bar-shaped hole 110 that completely covers the housing 1. The pushing block 21 is uneven on the surface facing away from the casing 1, for example, the surface is provided with protrusions and depressions to increase the friction between the finger and the pushing block 21. The shift lever 22 has a bar-shaped structure, and may have a straight bar-shaped structure. One end of the lever 22 is connected to the push block 21. The lever 22 may be perpendicular to the push block 21. The deflector rod 22 is arranged through the strip-shaped hole 110.

As shown in fig. 11, 21, and 22, the base 3 is fixed in the housing 1, and the outer contour of the base 3 may be configured in a cylindrical shape, and the base 3 may be disposed coaxially with the housing 1. The outer wall of the seat body 3 is provided with a slide 31 extending in the axial direction of the housing 1. The slideway 31 comprises two rails 311. Both guide rails 311 are configured in a straight bar shape. Both guide rails 311 extend in the axial direction of the housing 1. The two guide rails 311 are disposed on the same side of the housing 1 at intervals. A water inlet channel 35 and a yielding channel 34 are arranged in the seat body 3. The water inlet passage 35 extends in the axial direction of the housing 3. The relief channel 34 extends radially of the seat 3 and transverses the water inlet channel 35. The yield channel 34 is not in communication with the active channel. The relief channel 34 extends from the region of the housing 3 between the two rails 311 to the side of the housing 3 facing away from the rails 311. The seat body 3 is also provided with a hinge seat 32. The hinge seats 32 may be provided in two. The two hinge seats 32 are located on opposite sides of the relief channel 34. The relief channel 34 has a straight strip-shaped cross section, which extends in the axial direction of the housing 1. The hinge bases 32 are provided with shaft holes 321, and the shaft holes 321 of the two hinge bases 32 are coaxially arranged.

As shown in fig. 14, 19, 20, the slider 4 is provided inside the housing 1. The slider 4 may be constructed in a substantially plate-like structure. The slide 4 is arranged between the two rails 311 of the slideway 31, the slide 4 being able to slide only along the rails 311, so that the slide 4 is in sliding connection with the slideway 31. One end of the deflector rod 22 extending into the housing 1 is fixedly connected to the slider 4. The slider 4 is provided with a first mounting hole 41, and the first mounting hole 41 penetrates the slider 4.

As shown in fig. 9, 23, 24, one end of the crank lever 5 is provided inside the housing 1. The crank lever 5 may be configured in a bar shape, for example, a straight bar shape. The crank rod 5 passes through the relief channel 34 of the seat 3. One end of the crank lever 5 is rotatably connected to the base 3. In this embodiment, a rotating shaft 54 is disposed at one end of the crank 5, and two ends of the rotating shaft 54 respectively extend into the shaft holes 321 of the two hinge bases 32, so that one end of the crank 5 is hinged to the base 3. One end of the crank rod 5 facing away from the hinge seat 32 is inserted through the first mounting hole 41 of the slider 4.

As shown in fig. 10 and 12, the valve element 6 is provided in the housing 1. The valve spool 6 includes a valve body 61 and a switching lever 62 extending from the valve body 61. The valve element 6 is configured to have a substantially cylindrical structure. One end of the valve element 6 protrudes into the valve seat 38. The switching lever 62 is arranged along the axial direction of the housing 1, and an end of the switching lever 62 facing away from the valve body 61 is hinged to the crank lever 5, and a hinged contact point between the switching lever 62 and the crank lever 5 can slide along the crank lever 5. The switching lever 62 is movable in the axial direction thereof with respect to the valve body 61, and the movement of the switching lever 62 to a different position can switch the operating state of the valve element 6. The valve core 6 can be a water diversion valve, and the valve core 6 can be switched between different waterways when the switching rod 62 is moved between different positions.

As shown in fig. 9, the hinge contact point between the switching lever 62 and the crank lever 5 is located between the contact point between the first mounting hole 41 and the crank lever 5 and the rotational connection point between the crank lever 5 and the housing 3.

In the present embodiment, the push button 2, the slider 4, the crank lever 5, and the switch lever 62 of the push button switch mechanism constitute one crank slider mechanism. The user pushes the push button 2 along the axial direction of the shell 1, the push button 2 can slide reciprocally along the bar-shaped hole 110 of the shell 1, the push button 2 drives the sliding block 4 to slide reciprocally along the slideway 31 of the base 3, the sliding block 4 drives the crank rod 5 to swing reciprocally, and the switching rod 62 can be pushed and pulled in the process of swinging reciprocally the crank rod 5 to enable the switching rod 62 to move reciprocally in the axial direction of the shell 1, so that the valve core 6 is switched between different working states.

Since the hinge contact point between the switching lever 62 and the crank lever 5 is located between the contact point between the first mounting hole 41 of the slider 4 and the crank lever 5 and the rotational contact point between the crank lever 5 and the housing 3, the arm of force of the force applied to the crank lever 5 by the slider 4 is greater than the arm of force applied to the switching lever 62 by the crank lever 5, whereby the crank lever 5 is a labor-saving lever, the force required by the user to push the push button 2 can be reduced, and the user can push the push button 2 with a small force applied.

In particular, the push button switching mechanism has a simple and compact structure, and the base 3, the slide block 4, the crank lever 5 and the valve core 6 of the push button switching mechanism can be arranged in the cylindrical shell 1 except the push button 2, so that the push button switching mechanism can be applicable to even a shower head with a small size. Meanwhile, in the path of force transmitted from the push button 2 to the switching rod 62, only fit clearances possibly exist between the sliding block 4 and the crank rod 5 and between the crank rod 5 and the switching rod 62, so that the hollow stroke of the push button 2 in the pushing process is extremely short, even no hollow stroke exists, the valve core 6 has high switching response speed, and the user experience effect is good.

In an exemplary embodiment, as shown in fig. 21, one side of the shaft hole 321 of the hinge base 32 is provided with an opening. The openings of the shaft holes 321 on the two hinge bases 32 face the same side. The width of the opening of the shaft hole 321 is slightly smaller than the diameter of the rotation shaft 54.

The rotating shaft 54 can be clamped into the shaft hole 321 through the opening of the shaft hole 321, so that the rotating shaft 54 can be more conveniently assembled into the shaft hole 321.

In an exemplary embodiment, as shown in fig. 23, 24, the crank lever 5 is provided with a bar groove 53 having a circular arc-shaped cross section. The extending direction of the bar groove 53 is the same as the extending direction of the crank lever 5. The bar groove 53 may extend from one end of the crank rod 5 to the other end of the crank rod 5. The opening of the bar groove 53 is directed toward the switching lever 62. As shown in fig. 9 and 26, one end of the switching lever 62 is formed as a spherical portion 622 having a spherical shape, and the spherical portion 622 is accommodated in the bar groove 53. The diameter of the spherical portion 622 is larger than the width of the opening of the bar groove 53 of the crank lever 5; the diameter of the spherical portion 622 is slightly smaller than the diameter of the bar groove 53 of the crank lever 5.

The crank lever 5 is provided with the bar groove 53 with the circular arc-shaped cross section, one end of the switching lever 62 is provided with the spherical portion 622 with the spherical shape, the spherical portion 622 is accommodated in the bar groove 53, the fit clearance between the crank lever 5 and the switching lever 62 can be further reduced, the idle stroke of the push button 2 in the forward and backward processes along the axial direction of the housing 1 is further reduced, and the switching response of the valve core 6 is rapid. Meanwhile, the spherical part 622 on the switching rod 62 and the strip groove 53 of the crank rod 5 are matched for transmission, so that the connection is firm, the contact area is small, the operation is smooth, and the crank rod 5 is prevented from being blocked.

In an exemplary embodiment, as shown in fig. 9, the first mounting hole 41 of the slider 4 includes a first side 411 and a second side 412 disposed opposite in the axial direction of the housing 1 to contact opposite sides of the crank lever 5, respectively.

The first side 411 and the second side 412 are each arc-shaped curved surfaces, and the first side 411 and the second side 412 are each arched toward the crank lever 5.

The first side 411 and the second side 412 are arc-shaped curved surfaces, the crank rod 5 is respectively contacted with the first side 411 and the second side 412, so that the fit clearance between the sliding block 4 and the crank rod 5 is zero, the idle stroke of the push button 2 in the forward moving and backward moving processes along the axial direction of the shell 1 is further reduced, meanwhile, the crank rod 5 slides along the first side 411 and the second side 412 when swinging, and the crank rod 5 is not easy to interfere with the sliding block 4 to be blocked when moving.

In an exemplary embodiment, as shown in fig. 9, the first side 411 and the second side 412 are arranged offset in the radial direction of the housing 1.

The first side 411 and the second side 412 form line contact with the crank rod 5 in a radial dislocation manner respectively, and the crank rod 5 can be abducted by the first side 411 and the second side 412 which are arranged in a radial dislocation manner in the rotating process of the crank rod 5, so that the crank rod 5 is completely prevented from being blocked due to interference with the sliding block 4 during movement.

In the present embodiment, the first side 411 is closer to the axis of the housing 1 than the second side 412. When the crank lever 5 swings in a direction approaching the first side 411, a portion of the crank lever 5 approaching the first side 411 can reach a radially outward side of the first side 411, and a portion of the crank lever 5 approaching the second side 412 can reach a radially inward side of the second side 412, thereby avoiding interference of the two portions of the crank lever 5 with the slider 4.

In an exemplary embodiment, as shown in fig. 19, the slider 4 is provided with a second mounting hole 42. The second mounting hole 42 penetrates the slider 4 in the radial direction of the housing 1. As shown in fig. 9, the lever 22 is disposed through the second mounting hole 42, and the lever 22 may be interference fit with the second mounting hole 42 so that the lever 22 is fixed on the slider 4.

In an exemplary embodiment, the lever 22 and the slider 4 may also be snap-fit. As shown in fig. 20, the second mounting hole 42 is provided with two opposite clamping protrusions 421 at a side facing away from the pushing block 21. As shown in fig. 18, the lever 22 is provided with a locking groove 221, and the locking protrusion 421 is locked in the locking groove 221.

In an exemplary embodiment, as shown in fig. 20, the slider 4 is further provided with a first catch 413 and a second catch 414. The first catch 413 and the second catch 414 are both arranged on the side of the slider 4 facing the seat 3.

The first catch 413 and the second catch 414 are located on the sides of the two rails 311 that are close to each other, respectively. The first buckle 413 and the second buckle 414 respectively hook one side of the two guide rails 311 facing the seat body 3, so as to prevent the sliding block 4 from falling out of the guide rails 311. The first buckle 413 and the second buckle 414 may be provided in plurality, and a plurality of first buckles 413 and a plurality of second buckles 414 are provided with intervals therebetween, so that the slider 4 can stably slide on the slideway.

In an exemplary embodiment, as shown in fig. 2, 5 and 11, the shower head further comprises a water dividing member 7 and a water outlet cover 9.

As shown in fig. 5, the housing 1 is further provided with a mounting opening 120. The mounting opening 120 is provided at one side of the housing 1. The water outlet cover 9 is constructed in a plate-like structure. The water outlet cover 9 may be installed at the installation opening 120 of the housing 1 and close off the installation opening 120.

As shown in fig. 2, 9, and 10, the water outlet cover 9 includes a first water outlet 91, a second water outlet 92, and a boss 93. The first water outlet 91 is configured in a plate-like structure, and a plurality of first water outlets 911 are provided. The first water outlet 911 penetrates the first water outlet 91. The first water outlet 91 is spaced from the base 3. The protruding portion 93 protrudes from the edge of the first water outlet portion 91 toward the base 3, and the protruding portion 93 surrounds the edge of the first water outlet portion 91 and abuts against the base 3. The first water outlet 91, the protruding part 93 and the seat body 3 enclose a water outlet cavity 100, and a first water outlet 911 on the first water outlet 91 is communicated with the water outlet cavity 100. The second water outlet 92 is located at one side of the first water outlet 91. The second water outlet portion 92 is provided with a second water outlet 921.

As shown in fig. 10 and 11, the housing 3 is further provided therein with a first mounting chamber 36. The first mounting cavity 36 may be configured cylindrically. The first installation cavity 36 is provided at one end of the water inlet channel 35, and the first installation cavity 36 is communicated with the water inlet channel 35. The first mounting chamber 36 is spaced apart from the relief passage 34 in the axial direction of the housing 1. The first mounting chamber 36 is adjacent the outlet chamber 100. The first mounting chamber 36 is provided with a sprinkler outlet 30 on a wall adjacent the outlet chamber 100.

As shown in fig. 5, 10 and 11, the valve body 61 of the valve core is constructed in a barrel-like structure, and is provided with a first inner cavity 611. The valve body 61 is disposed in the first mounting chamber 36 coaxially with the first mounting chamber 36. One end of the valve body 61 is provided with a first inlet 613 of the first lumen 611. The first inlet 613 faces the water inlet channel 35 and communicates with the water inlet channel 35. The outer side surface of the valve body 61 is recessed to form a water passing groove, and the inner wall of the first installation cavity 36 is covered on the opening of the water passing groove to seal the water passing groove. The water trough communicates with the sprinkler outlet 30 on the wall of the first mounting chamber 36. A first outlet 614 is also provided in the side wall of the valve body 61. The first outlet 614 extends through a side wall of the valve body 61. The first outlet 614 connects the first inner chamber 611 of the valve body 61 with the water tank.

Thus, as shown in fig. 8, 10 and 11, the water inlet channel 35 of the base 3, the first inner cavity 611 of the valve body 61, the first outlet 614 of the valve body 61, the water passing channel of the valve body 61, the water spraying outlet 30 of the base 3, the water outlet cavity 100 between the water outlet cover 9 and the base 3, and the first water outlet 911 of the water outlet cover 9 may be sequentially communicated, and after water is injected into the water inlet channel 35, the water sequentially flows through the first inner cavity 611 of the valve body 61, the first outlet 614 of the valve body 61, the water passing channel of the valve body 61, the water spraying outlet 30 of the base 3, and the water outlet cavity 100, and finally is sprayed out from the plurality of first water outlets 911 of the water outlet cover 9.

A valve seat 38 is also provided in the housing 3. A valve seat 38 is disposed between the first mounting cavity 36 and the relief passage 34. The valve seat 38 is spaced from the first mounting chamber 36. A second interior cavity 381 is disposed within the valve seat 38, the second interior cavity 381 extending axially of the housing. The second interior cavity 381 may be cylindrical and disposed coaxially with the interior cavity of the valve body 61. The second inner chamber 381 is provided with a second inlet 382, the second inlet 382 being provided at a side of the valve seat 38 facing the valve body 61 and facing the first inlet 613. The second inlet 382 is disposed coaxially with the first inlet 613 of the valve body 61. The second inlet 382 can be connected to the water inlet passage 35 of the housing 3.

As shown in fig. 11 and 15, a communication passage 39 and a second installation chamber 37 are also provided in the housing. The second mounting chamber 37 is arranged on the side of the first mounting chamber 36 facing away from the valve seat 38. The communication passage 39 is provided at one side of the first mounting chamber 36 and extends in the axial direction of the housing 1. One end of the communication passage 39 extends to the valve seat 38 and communicates with the second inner cavity 381 of the valve seat 38; the other end of the communication passage 39 extends to the second mounting chamber 37 and communicates with the second mounting chamber 37.

As shown in fig. 5, 11, 13 and 16, the water dividing member 7 is constructed in a tubular structure, and a flow passage 71 is provided in the water dividing member 7. One end of the water dividing member 7 extends into the second mounting cavity 37, and the other end of the water dividing member 7 extends to the second water outlet 921. One end of the flow passage 71 of the water diversion member 7 is communicated with one end of the communication passage 39 facing away from the valve seat 38, and the other end of the flow passage 71 of the water diversion member 7 is communicated with the second water outlet 921.

Thus, as shown in fig. 13, 15 and 16, the water inlet passage 35 of the housing 3, the second inner chamber 381 of the valve seat 38, the communication passage 39 of the housing, the flow passage 71 of the water dividing member 7, and the second water outlet 921 of the water outlet cover 9 are sequentially communicated. After the water is injected into the water inlet channel 35, the water flows through the second inner cavity 381 of the valve seat 38, the communication channel 39 of the seat body and the flow channel 71 of the water diversion member 7 in sequence, and finally is sprayed out from the second water outlet 921 of the water outlet cover 9.

The switch lever 62 extends from the first interior cavity 611 of the valve body 61 through the second interior cavity 381 of the valve seat 38 into the relief passage 34.

As shown in fig. 10, the spool also includes a first seal 63. The first seal 63 may be a rubber member. The first seal 63 may be configured in an annular structure. The first sealing member 63 is sleeved on the switching lever 62 and fixedly connected with the switching lever 62. The water inlet passage 35 communicates with the area between the valve seat 38 and the valve body 61, and the first seal 63 is located between the valve seat 38 and the valve body 61. The outer diameter of the first seal 63 is greater than the outer diameter of the first inlet 613 and the outer diameter of the second inlet 382.

The push button 2 can drive the switching rod 62 to move along the axial movement of the shell 1, so that the switching of waterways is realized. The method comprises the following steps:

as shown in fig. 13, 15 and 16, the switching lever 62 moves along the axial direction of the housing into the first inner cavity 611, and drives the first sealing member 63 to move toward the first inlet 613, the first sealing member 63 can seal the first inlet 613 of the first inner cavity 611, and the second inlet 382 of the second inner cavity 381 is opened, at this time, water is injected into the water inlet channel 35, then flows through the second inner cavity 381 of the valve seat 38, the communication channel 39 of the seat body, and the flow channel 71 of the water diversion member 7 in order, and finally is ejected from the second water outlet 921 of the water outlet cover 9.

As shown in fig. 8, 10 and 11, the switching lever 62 moves along the axial direction of the housing to the outside of the first inner cavity 611, and then drives the first sealing member 63 to move in the direction of the second inlet 382, the first sealing member 63 can seal the second inlet 382 of the second inner cavity 381, and the first inlet 613 of the first inner cavity 611 is opened, at this time, after water is injected into the water inlet channel 35, the water sequentially flows through the first inner cavity 611 of the valve body 61, the first outlet 614 of the valve body 61, the water passing groove of the valve body 61, the water spraying outlet 30 of the base body 3, the water outlet 100, and finally is sprayed out from the plurality of first water outlets 911 of the water outlet cover 9.

In one illustrative embodiment, as shown in FIG. 10, the valve cartridge also includes a second seal 64. The second seal 64 may be a rubber member. The second seal 64 may be configured in an annular configuration. The second sealing member 64 is sleeved on the switching rod 62 and fixedly connected with the switching rod 62. The second seal 64 is disposed within the first interior cavity 611 on a side of the first outlet 614 remote from the first inlet 613. The outer edge of the second seal 64 abuts the inner peripheral wall of the first lumen 611. The second seal 64 seals a gap between the outer peripheral surface of the switching lever 62 and the side surface of the first inner cavity 611.

When the first sealing member 63 seals the second inlet 382 of the second inner cavity 381, the first sealing member 63 receives a water pressure in a direction opposite to the second sealing member 64, and the second sealing member 64 receives a water pressure opposite to the first sealing member 63, which are offset from each other, so that an influence of the water pressure on the movement of the switching lever 62 is reduced, and thus a force required by a user to push the push button 2 is reduced when the first sealing member 63 seals the second inlet 382 of the second inner cavity 381.

In one illustrative embodiment, as shown in FIG. 15, the valve cartridge further includes a third seal 65. The third seal 65 may be a rubber member. The third seal 65 may be constructed in an annular structure. The third sealing member 65 is sleeved on the switching rod 62 and fixedly connected with the switching rod 62. The third seal 65 is disposed within the second interior cavity 381. The outer edge of the third seal 65 abuts against the inner peripheral wall of the second inner cavity 381. The third seal 65 seals a gap between the outer peripheral surface of the switching lever 62 and the side surface of the second inner chamber 381.

When the first sealing member 63 seals the first inlet 613 of the first inner cavity 611, the first sealing member 63 receives a water pressure in a direction opposite to the third sealing member 65, and the third sealing member 65 receives a water pressure opposite to the first sealing member 63, which are offset each other, so that an influence of the water pressure on the movement of the switching lever 62 is reduced, and further, a force required by a user to push the push button 2 is reduced when the first sealing member 63 seals the first inlet 613 of the first inner cavity 611.

In an exemplary embodiment, as shown in fig. 10, a first and a second limiting protrusion 623, 624 are provided on the outer circumferential surface of the switching lever 62. The first and second stop protrusions 623 and 624 may be annular protrusions. The first seal 63 is sandwiched between the first and second stop bosses 623, 624.

The first and second stop protrusions 623 and 624 can abut against opposite sides of the first seal 63, respectively, to prevent the first seal 63 from moving in the axial direction of the switching lever 62.

In an exemplary embodiment, as shown in fig. 10, a third limit protrusion 625 and a fourth limit protrusion 626 are further provided on the outer circumferential surface of the switching lever 62. The third and fourth limit protrusions 625 and 626 may be annular protrusions. The second seal 64 is sandwiched between the third limit projection 625 and the fourth limit projection 626.

The third and fourth stop protrusions 625 and 626 can abut against opposite sides of the second seal 64, respectively, to prevent the first seal 63 from moving in the axial direction of the switching lever 62.

In one illustrative embodiment, as shown in FIG. 10, a fifth limit projection 627 is further provided on the outer circumferential surface of the shift lever 62. Fifth limit projection 627 can be an annular projection. Fifth spacing protrusion 627 is disposed on a side of third seal 65 proximate to first seal 63, and fifth spacing protrusion 627 abuts third seal 65.

Fifth limit projection 627 can prevent third seal 65 from moving in the direction of first inlet 613 and out of second interior cavity 381.

In one illustrative embodiment, as shown in FIG. 10, the valve cartridge further includes a resilient member 66. The elastic member 66 is disposed within the first lumen 611. One end of the elastic member 66 abuts against the bottom wall of the first inner cavity 611 facing away from the first inlet 613. The other end of the elastic member 66 abuts against the third limit protrusion 625 of the switching lever 62. The elastic member 66 is in a compression deformed state. The elastic member 66 applies elastic force to the switching lever 62 in the same direction as the first inlet 613. The elastic member 66 may be a coil spring and is fitted over the switching lever 62. The elastic member 66 is sleeved on the switching lever 62, so that the elastic member 66 can be prevented from bending when being compressed.

The elastic force of the elastic member 66 applied to the switching rod 62 makes the switching rod 62 have a tendency to move towards the outside of the first inlet 613, when water is cut off and water is not injected into the water inlet channel 35, no water pressure exists in the casing 1, and the elastic member 66 can drive the switching rod 62 to move towards the outside of the first inlet 613, so that the first sealing member 63 is driven to automatically reset to a position for blocking the second inlet 382. When the user uses the shower again, the initial state of the shower is always the state that the first water outlet 911 is out of water, so that the relation between the pushing direction of the push button and the water outlet state of the shower is not required to be marked by arranging a mark in the push button or the nearby area of the push button.

However, in the existing shower products, a mark needs to be arranged on the push button or the nearby area thereof to mark the relation between the push direction of the push button and the water outlet state of the shower. The mark is usually a silk screen mark, a laser mark or a relief mark, and the cost is increased.

In one illustrative embodiment, as shown in fig. 10 and 27, the valve body 61 is further provided with a straight bore 615 and a vent slot 612. A straight bore 615 is provided in the bottom wall of the first lumen 611. The direction of extension of the straight hole 615 is the same as the direction of extension of the switch lever 62. One end of the switching lever 62 is inserted into the straight hole 615. The straight bore 615 is in clearance fit with the switch lever 62, the straight bore 615 constraining the switch lever 62 to only slide axially therealong. The vent groove 612 extends from the straight hole 615 to the outer peripheral surface of the valve body 61.

As shown in fig. 12 and 22, the seat body is further provided with a vent hole 33. One end of the vent hole 33 communicates with the vent groove 612. The other end of the vent hole 33 extends to the outer surface of the housing.

The straight hole 615, the ventilation groove 612 and the ventilation hole 33 can communicate the first inner cavity 611 with the outside, so that the first inner cavity 611 is balanced with the outside air pressure, and the switching rod 62 is prevented from being difficult to move due to pressure holding in the first inner cavity.

In an exemplary embodiment, as shown in fig. 25 and 10, the shower head further includes a water outlet baffle 10. The water outlet baffle 10 may be constructed as an arcuate plate. The water outlet baffle 10 is provided with a plurality of water outlet holes 101. The plurality of water outlet holes 101 may be sequentially arranged on the water outlet baffle 10 in the circumferential direction of the casing. The water outlet hole 101 penetrates the water outlet baffle 10. The water outlet baffle 10 is disposed in the water outlet cavity 100 and covers the water outlet 30 of the seat body 3, and the water outlet hole 101 communicates the water outlet 30 with the water outlet cavity 100. The water outlet 101 has a smaller diameter than the water outlet 30.

The water input into the water outlet cavity 100 from the water outlet 30 is generally relatively turbulent, and the flow velocity is relatively high, so that the water shape of the water discharged from the first water outlet 911 near the water outlet 30 can be dispersed due to the excessively strong jet intensity if the water outlet baffle 10 is not used for buffering. When the water outlet baffle plate 10 is arranged, the water outlet baffle plate 10 weakens the flow rate of the water input into the water outlet cavity 100 from the water sprinkling outlet 30, so that the water outlet of each first water outlet hole 101 is more uniform.

In an exemplary embodiment, as shown in fig. 11, the shower head further comprises a water inlet joint 11. One end of the water inlet joint 11 is inserted into the end of the water inlet channel 35 of the valve seat 38 facing away from the first mounting cavity 36. The other end of the water inlet joint 11 extends out of the housing and is provided with an external thread. The water inlet joint 11 is used for connecting a water supply pipeline externally, and can inject water input by the water supply pipeline into the water inlet channel 35 of the valve seat 38.

In an exemplary embodiment, as shown in fig. 5, the shower head further includes a flow gathering post 12 and a beam splitter 13. As shown in fig. 8, the flow-collecting boss 12 and the beam splitter 13 are both disposed in the second water outlet 92 and located between the second water outlet 921 and the flow passage 71 of the water dividing member 7. The flow-gathering convex column 12 is provided with a column body. The beam splitter 13 includes a ring body and an impeller provided inside the ring body. The ring body is sleeved on the column body.

When the water flows from the flow channel 71 of the water diversion element 7 to the second water outlet 921, the water flows through the flow gathering convex column 12 and the beam device 13, so that the beam device 13 is driven to rotate, and the beam device 13 drives the water to rotate when rotating, so that the second water outlet 921 can output the pulsating water.

In another illustrative embodiment, as shown in FIG. 29, the second seal 64 is not disposed within the valve spool 6.

When the second sealing member 64 is not arranged, the pressure in the valve body 61 is not suppressed, the vent groove 612 is not required to be arranged on the valve body 61, the vent hole 33 is not required to be arranged on the seat body 3 for pressure relief, the structure of the valve core 6 is simpler, and the manufacturing cost is lower.

The push button switching mechanism of the application can be applied to a shower head, but is not limited to the shower head.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," "secured" and the like should be construed broadly, as they may be fixed, removable, or integral, for example; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.

Claims (17)

1. The utility model provides a push button switching mechanism which characterized in that includes:

a housing configured in a cylindrical shape, provided with a bar-shaped hole penetrating the housing, and having a cross section with a length direction parallel to an axial direction of the housing;

the push button comprises a push block propped against the outer wall of the shell and a deflector rod with one end connected with the push block and penetrating through the strip-shaped hole;

the base body is fixed in the shell and is provided with a slide rail extending along the axial direction of the shell;

the sliding block is arranged in the shell, connected to the deflector rod and provided with a first mounting hole, and is in sliding connection with the slideway;

the crank rod is arranged in the shell, one end of the crank rod is rotatably connected with the seat body, and the other end of the crank rod penetrates through the first mounting hole; and

the valve core is arranged in the shell and comprises a valve body and a switching rod extending out of the valve body, the switching rod is arranged along the axial direction of the shell, one end of the switching rod is hinged with the crank rod in a mode that a hinged contact point can slide along the crank rod, and the switching rod can slide along the axial direction in the valve body;

wherein the hinge contact point between the switch lever and the crank lever is located between the contact point between the first mounting hole and the crank lever and the rotational connection point between the crank lever and the housing.

2. The push button switching mechanism according to claim 1, wherein the crank lever is provided with a bar groove having a circular arc-shaped cross section, the extending direction of the bar groove is the same as that of the crank lever, the opening of the bar groove faces the switching lever, one end of the switching lever is provided with a spherical portion having a spherical shape, the spherical portion is accommodated in the bar groove, and the diameter of the spherical portion is larger than the width of the opening of the bar groove.

3. The push button switching mechanism according to claim 1, wherein the first mounting hole includes a first side surface and a second side surface which are oppositely disposed in an axial direction of the housing, the first side surface and the second side surface respectively contacting opposite sides of the crank lever;

the first side surface and the second side surface are both arc-shaped curved surfaces.

4. A push button switching mechanism according to claim 3, wherein the first side and the second side are arranged offset in a radial direction of the housing.

5. The push button switching mechanism of claim 1, wherein the slide comprises two guide rails each extending in an axial direction of the housing and located on the same side of the housing;

the sliding block is clamped between the two guide rails.

6. The push button switching mechanism of claim 5, wherein an outer contour of the housing is configured in a cylindrical shape coaxial with the housing;

a yielding channel which radially penetrates through the seat body is arranged in the seat body, and one end of the yielding channel is positioned between the two guide rails;

the crank rod penetrates through the abdication channel, and one end of the crank rod is hinged to one side of the seat body, which is opposite to the guide rail.

7. The push button switching mechanism according to claim 6, wherein the seat body is further provided with two hinge seats on two sides of one end of the yielding channel, which is opposite to the guide rail, respectively, and the hinge seats are provided with shaft holes;

one end of the crank rod is provided with a rotating shaft, and two ends of the rotating shaft are respectively inserted into shaft holes of the two hinge seats.

8. The push button switching mechanism of claim 6, wherein a water inlet channel extending along an axial direction is further provided in the base, and the relief channel traverses the water inlet channel;

the inside of the seat body is also provided with a first installation cavity positioned at one end of the water inlet channel and a valve seat positioned between the first installation cavity and the abdication channel;

the valve body is arranged in the first mounting cavity, and a first inner cavity with a first inlet is arranged in the valve body;

the valve seat is arranged at intervals with the valve body, and a second inner cavity with a second inlet is arranged in the valve seat;

the first inlet and the second inlet are arranged opposite to each other and can be communicated with the water inlet channel;

the switching rod penetrates through the second inner cavity from the first inner cavity to extend into the yielding channel;

the valve core further comprises a first sealing element arranged on the switching rod, wherein the first sealing element is positioned between the first inlet and the second inlet and can selectively block one of the first inlet and the second inlet along with the movement of the switching rod.

9. The push button switching mechanism of claim 8, wherein the valve cartridge further comprises a second seal disposed on the switch lever;

the second seal is located within the first inner cavity and seals a gap between an outer peripheral surface of the switching lever and a side surface of the first inner cavity.

10. The push button switching mechanism of claim 8, wherein the valve cartridge further comprises a third seal disposed on the switch lever;

the third seal is located within the second inner cavity and seals a gap between an outer peripheral surface of the switching lever and a side surface of the second inner cavity.

11. The push button switching mechanism of claim 8, wherein the valve cartridge further comprises an elastic member disposed within the first interior cavity, the elastic member configured to apply an elastic force to the switching lever, the elastic force having a direction that is the same as an orientation of the first inlet.

12. The push button switching mechanism according to claim 11, wherein a third limit projection is further provided on an outer peripheral surface of the switching lever;

one end of the elastic piece is propped against the bottom wall of the first inner cavity, which is opposite to the first inlet, and the other end of the elastic piece is propped against the third limiting protrusion, and the elastic piece is in a compression state.

13. The push button switching mechanism of claim 9, wherein the valve body is further provided with a straight hole with one end communicated with the first inner cavity, and a vent groove extending from the straight hole to the outer surface of the valve body;

the straight hole extends along the radial direction of the valve body, and one end of the switching rod extends into the straight hole.

14. A shower head comprising the push button switching mechanism as claimed in any one of claims 1 to 13.

15. A shower head comprising a water outlet cover and a push button switching mechanism as claimed in any one of claims 8 to 13;

the shell is also provided with a mounting opening, and the water outlet surface cover is arranged at the mounting opening;

the water outlet surface cover comprises a first water outlet part and a second water outlet part, wherein the first water outlet part is arranged at a distance from the seat body, and the second water outlet part is arranged at one end of the first water outlet part;

the first water outlet part is provided with a first water outlet communicated with the first inner cavity, and the second water outlet part is provided with a second water outlet communicated with the second inner cavity.

16. The showerhead of claim 15 wherein the water outlet cover further comprises a boss extending from an edge of the first water outlet to the seat;

the first water outlet part, the bulge part and the seat body enclose a water outlet cavity, and the first water outlet is communicated with the water outlet cavity;

the first installation cavity is adjacent to the water outlet cavity, and a water spraying outlet communicated with the water outlet cavity is arranged on the first installation cavity;

the outer side surface of the valve body is sunken to form a water passing groove, and a first outlet which is communicated with the water passing groove and the first inner cavity is further formed in the side wall of the valve body.

17. The showerhead of claim 15 or 16 wherein a second mounting chamber is further provided in the housing on a side of the first mounting chamber facing away from the valve seat and a communication channel extending from the second inner chamber to the second mounting chamber;

the shower head further comprises a water diversion part, one end of the water diversion part extends into the second installation cavity, a flow passage is arranged in the water diversion part, and two ends of the flow passage are respectively communicated with the communication passage and the second water outlet.