A button switching mechanism

Abstract

The present invention discloses a button switching mechanism, which comprises a body, a button, a claw, an inclined water body, an impeller, a speed reduction mechanism, a switching disk, and a water distribution disk. The body is provided with a water inlet end and a water outlet end. The inclined water body is arranged at the water inlet end to convert water flow into a water flow beam that impacts the impeller. The water distribution disk is provided with at least two water channels and is fixed to the water outlet end of the body. The switching disk is rotatably arranged on the water distribution disk to sequentially block the water channels. The impeller transmits power to the speed reduction mechanism and outputs at a slow speed with high torque to drive the switching disk to rotate. The claw is linked with the switching disk and intermittently engages with the body. The button is movably arranged on the body to unlock the claw, so that the switching disk rotates under hydraulic drive. The present invention can unlock the internal claw by pressing the button and automatically complete the water channel switching by relying on water power, with a small pressing stroke and a small pressing force.

Description

Technical Field

[0001] The present invention relates to sanitary products, in particular to a button switching mechanism. Background Art

[0002] Existing shower heads with button switching generally have the following two major types of structures: the pressing structure of a ballpoint pen automatic pencil (such as: CN101590454B); the structure of a ratchet and pawl (such as CN203842734U); both of these two types of structures have the following problems: the pressing stroke of the button is very large; a large amount of water pressure needs to be overcome during the operation process, so the operating force is also very large. Therefore, the user experience is not good. Summary of the Invention

[0003] Aiming at the deficiencies of the above-mentioned prior art, the technical problem to be solved by the present invention is to provide a button switching mechanism with a small pressing stroke and a small switching force.

[0004] To achieve the above object, the technical solution adopted by the present invention is: a button switching mechanism, which is characterized by comprising: a body, a button, a pawl, an inclined water body, an impeller, a speed reduction mechanism, a switching disk, and a water distribution disk. The body is provided with a water inlet end and a water outlet end. The inclined water body is arranged at the water inlet end to convert the water flow into a water flow bundle that impacts the impeller. The water distribution disk is provided with at least two water channels and is fixed to the water outlet end of the body. The switching disk is rotatably arranged on the water distribution disk to sequentially block the water channels. The impeller transmits power to the speed reduction mechanism and outputs at a slow speed with high torque to drive the switching disk to rotate. The pawl is linked with the switching disk and intermittently engages with the body. The button is movably arranged on the body to unlock the pawl, so that the switching disk rotates under hydraulic drive. By pressing the button of the present invention, the internal pawl is unlocked, and the water channel switching is automatically completed by relying on hydraulic drive, with a small pressing stroke and a small pressing force.

[0005] Optionally, the speed reduction mechanism is a planetary gear set. The first-stage sun gear of the planetary gear set is coaxially and fixedly arranged with the impeller. The end of the output shaft of the planetary gear set is coaxially and fixedly arranged with the switching disk. The pawl is coaxially and fixedly arranged in the middle of the output shaft. Using a planetary gear set saves space and has a large transmission ratio. Of course, other speed reduction mechanisms can also be used if conditions permit.

[0006] Optionally, the body is a hollow rotating body with openings at both the top and bottom. A power chamber, an unlocking chamber, and a switching chamber are arranged in the inner cavity from top to bottom. A clamping groove is arranged on the side wall of the unlocking chamber; the inclined water body, the impeller, and the planetary gear set are coaxially arranged in the power chamber, and the output shaft of the planetary gear set extends downward into the switching chamber; the claw is coaxially arranged in the unlocking chamber and is intermittently engaged with the clamping groove; the switching disc and the water distribution disc are coaxially arranged in the switching chamber. Most components in the present invention are coaxially arranged and can be well arranged in the handle part of the shower head. Therefore, the head of the shower head can be freely selected and matched with different appearances, which can greatly reduce the costs of assembly and mold development.

[0007] Optionally, the unlocking chamber is separately and hermetically arranged from the power chamber and the switching chamber, that is, a first partition is arranged between the power chamber and the unlocking chamber, a second partition is arranged between the unlocking chamber and the switching chamber, a first through hole is arranged in the middle of the first partition, a second through hole is arranged in the middle of the second partition, and a first sealing ring and a second sealing ring are arranged on the outer wall of the output shaft and are hermetically matched with the first through hole and the second through hole respectively; and a through hole is arranged in the middle of the output shaft to communicate the power chamber and the switching chamber. Through the above sealing arrangement, the problem of sealing at the button can be solved. The button is not affected by water pressure and has a small operating force. Of course, if the unlocking chamber is in communication with the water path, the button has to be sealed. If the button is sealed, the structure will be complicated and the operating feel of the button will also be affected.

[0008] Optionally, a button chamber and an unlocking hole are arranged on the side of the body. The unlocking hole communicates the button chamber with the unlocking chamber. The button is movably arranged in the button chamber. An unlocking rod is arranged at the lower end of the button. The unlocking rod extends through the unlocking hole into the unlocking chamber, and a return spring is arranged below the button.

[0009] Optionally, at least two groups of hooks are arranged on the claw in an array with its rotating shaft as the center. The intermittent rotation of the claw is related to the hooks arranged on it. Assuming that they are all arranged in an equal-angle array, the intermittent rotation angle is: 360 / hook number. We can design the hooks according to the number of water paths at the rear end and the required water path combination.

[0010] Optionally, a flat hole is arranged in the middle of the claw, and a flat shaft matched with the flat hole is arranged at the corresponding position of the output shaft.

[0011] Optionally, the water distribution disc is provided with three groups of water paths, and the claw is provided with three groups of hooks. Assuming that the three groups of water paths are A, B, and C respectively, the angles at which the three groups of hooks stay are 0°, 120°, and 240°. The water path connection conditions are as follows:

[0012] First type: at 0°, A is connected; at 120°, B is connected; at 240°, C is connected

[0013] The second type: when it is 0°, connect AB; when it is 120°, connect AB; when it is 240°, connect BC

[0014] Optionally, the water dividing tray is provided with 3 groups of waterways, and the clamping claws are provided with 6 groups of hooks. In this case, the angles at which the 6 groups of hooks stay are 0°, 60°, 120°, 180°, 240°, 300°. The waterway connection conditions can be: when it is 0°, connect to A; when it is 60°, connect to AB; when it is 120°, connect to B; when it is 180°, connect to BC; when it is 240°, connect to C; when it is 300°, connect to CA.

[0015] Optionally, the ring gear of the planetary gear set is integrally provided on the side wall of the power chamber.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. By pressing the button, the internal clamping claws are unlocked, and the waterway switching is automatically completed by relying on hydraulic drive. The pressing stroke is small and the pressing force is small. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0019] Figure 1 is a three-dimensional view of a button switching mechanism according to a preferred embodiment of the present invention;

[0020] Figure 2 is a three-dimensional exploded view of a button switching mechanism according to a preferred embodiment of the present invention;

[0021] Figure 3 、 4 is a sectional view of a button switching mechanism according to a preferred embodiment of the present invention;

[0022] Figure 5 、 6 、7 is a schematic diagram of the waterway switching principle of a button switching mechanism according to a preferred embodiment of the present invention.

[0023] In the figure:

[0024] 100 - body; 110 - power chamber; 120 - unlocking chamber; 130 - switching chamber; 140 - button chamber; 141 - unlocking hole; 150 - card slot; 160 - first partition; 161 - first through hole; 170 - second partition; 171 - second through hole

[0025] 200 - button; 210 - unlocking rod

[0026] 300 - Claw; 310 - Hook; 320 - Flat Hole

[0027] 400 - Inclined Water Body; 410 - Inclined Injection Hole

[0028] 500 - Impeller

[0029] 600 - Planetary Gear Set; 610 - Output Shaft; 611 - First Sealing Ring; 612 - Second Sealing Ring; 613 - Water Passing Hole; 614 - Flat Shaft; 620 - Sun Gear; 630 - Ring Gear

[0030] 700 - Transmission Part

[0031] 800 - Switching Disk

[0032] 900 - Water Distribution Disk. Detailed Embodiment

[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Usually, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0034] Therefore, the detailed description of the embodiments of the present invention provided in the drawings below is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the scope of protection of the present invention.

[0035] It should be noted that: Similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0036] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed when in use. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present invention, it should also be noted that, unless otherwise clearly specified and defined, the terms "set", "installed", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] The following is a specific description in conjunction with embodiments.

[0039] Embodiment 1:

[0040] As Figures 1 to 7 shown, a button switching mechanism of the present invention is characterized by including: a body 100, a button 200, a claw 300, an inclined water body 400, an impeller 500, a speed reduction mechanism, a switching disk 800, and a water distribution disk 900. The body 100 is provided with a water inlet end and a water outlet end. The inclined water body 400 is arranged at the water inlet end to convert the water flow into a water flow beam that impacts the impeller 500. The water distribution disk 900 is provided with three water paths and is fixed to the water outlet end of the body 100. The switching disk 800 is rotatably arranged on the water distribution disk 900 to sequentially block the water paths. The impeller 500 transmits power to the speed reduction mechanism and outputs at a slow speed with high torque to drive the switching disk 800 to rotate. The claw 300 is linked with the switching disk 800 and intermittently engages with the body 100. The button 200 is movably arranged on the body 100 to unlock the claw 300, so that the switching disk 800 rotates under hydraulic drive. By pressing the button 200 of the present invention, the internal claw 300 is unlocked, and the water path switching is automatically completed by relying on hydraulic drive. The pressing stroke is small and the pressing force is small.

[0041] In this embodiment, the speed reduction mechanism is a planetary gear set 600. The tooth ring 630 of the planetary gear set 600 is integrally arranged on the side wall of the power chamber 110. The first-stage sun gear 620 of the planetary gear set 600 is coaxially and fixedly arranged with the impeller 500. The end of the output shaft 610 of the planetary gear set 600 is coaxially and fixedly arranged with the switching disk 800. The claw 300 is coaxially and fixedly arranged in the middle of the output shaft 610. Using the planetary gear set 600 saves space and has a large transmission ratio. Of course, other speed reduction mechanisms can also be used if conditions permit.

[0042] In this embodiment, the body 100 is a hollow rotating body with openings at both the top and the bottom. A power chamber 110, an unlocking chamber 120, and a switching chamber 130 are arranged in the inner cavity from top to bottom. A clamping groove 150 is arranged on the side wall of the unlocking chamber 120; the inclined water body 400, the impeller 500, and the planetary gear set 600 are coaxially arranged in the power chamber 110, and the output shaft 610 of the planetary gear set 600 extends downward into the switching chamber 130; the claw 300 is coaxially arranged in the unlocking chamber 120 and is intermittently engaged with the clamping groove 150; the switching disk 800 and the water distribution disk 900 are coaxially arranged in the switching chamber 130. Most components in the present invention are coaxially arranged and can be well arranged in the handle part of the shower head. Therefore, the head of the shower head can be freely selected and matched with different appearances, which can greatly reduce the costs of assembly and mold development.

[0043] In this embodiment, a flat hole 320 is arranged in the middle of the claw 300, and a flat shaft 614 matched with the flat hole 320 is arranged at the corresponding position of the output shaft 610.

[0044] In this embodiment, the unlocking chamber 120 is separately and hermetically arranged from the power chamber 110 and the switching chamber 130. That is, a first partition plate 160 is arranged between the power chamber 110 and the unlocking chamber 120, a second partition plate 170 is arranged between the unlocking chamber 120 and the switching chamber 130, a first through hole 161 is arranged in the middle of the first partition plate 160, a second through hole 171 is arranged in the middle of the second partition plate 170, and first sealing rings 611 and second sealing rings 612 are arranged on the outer wall of the output shaft 610 and are hermetically matched with the first through hole 161 and the second through hole 171 respectively; and a water passing hole 613 is arranged in the middle of the output shaft 610 to communicate the power chamber 110 and the switching chamber 130. Through the above sealing arrangement, the sealing problem at the button 200 can be solved. The button 200 is not affected by the water pressure and has a small operating force. Of course, if the unlocking chamber 120 is the same as the water path, the button 200 has to be sealed. If the button 200 is sealed, the structure will be complicated and the operating feel of the button 200 will also be affected.

[0045] In this embodiment, a button chamber 140 and an unlocking hole 141 are arranged on the side of the body 100. The unlocking hole 141 communicates the button 200 chamber with the unlocking chamber 120. The button 200 is movably arranged in the button chamber 140. An unlocking rod 210 is arranged at the lower end of the button 200. The unlocking rod 210 extends through the unlocking hole 141 into the unlocking chamber 120, and a return spring is arranged below the button 200.

[0046] In this embodiment, three groups of hooks 310 are arranged in an array with the rotation axis of the claw 300 as the center. The intermittent rotation of the claw 300 is related to the arranged hooks 310. Assuming they are all arranged in an equiangular array, the intermittent rotation angle is: 360 / the number of hooks, that is, the angle is 120°. We can design the hooks 310 according to the number of waterways at the rear end and the required waterway combination.

[0047] In this embodiment, the water distribution plate 900 is provided with three groups of waterways, and the claw 300 is provided with three groups of hooks 310. The three groups of waterways are A, B, and C respectively, and the angles where the three groups of hooks 310 stay are 0°, 120°, and 240°. The waterway connection conditions are as follows:

[0048] First type: At 0°, connect to A; at 120°, connect to B; at 240°, connect to C;

[0049] Second type: At 0°, connect to AB; at 120°, connect to AB; at 240°, connect to BC.

[0050] Second embodiment:

[0051] It is characterized by including: a body 100, a button 200, a claw 300, an inclined water body 400, an impeller 500, a speed reduction mechanism, a switching disk 800, and a water distribution plate 900. The body 100 is provided with a water inlet end and a water outlet end. The inclined water body 400 is arranged at the water inlet end to convert the water flow into a water flow beam that impacts the impeller 500. The water distribution plate 900 is provided with three waterways and is fixed to the water outlet end of the body 100. The switching disk 800 is rotatably arranged on the water distribution plate 900 to sequentially block the waterways. The impeller 500 transmits power to the speed reduction mechanism and outputs at a slow speed and high torque to drive the switching disk 800 to rotate. The claw 300 is linked with the switching disk 800 and intermittently engages with the body 100. The button 200 is movably arranged on the body 100 to unlock the claw 300, so that the switching disk 800 rotates under hydraulic drive. In the present invention, by pressing the button 200, the internal claw 300 is unlocked, and the waterway switching is automatically completed by relying on hydraulic drive. The pressing stroke is small and the pressing force is small.

[0052] In this embodiment, the speed reduction mechanism is a planetary gear set 600. The tooth ring 630 of the planetary gear set 600 is integrally arranged on the side wall of the power chamber 110. The first-stage sun gear 620 of the planetary gear set 600 is coaxially and fixedly arranged with the impeller 500. The end of the output shaft 610 of the planetary gear set 600 is coaxially and fixedly arranged with the switching disk 800. The claw 300 is coaxially and fixedly arranged in the middle of the output shaft 610. Using the planetary gear set 600 saves space and has a large transmission ratio. Of course, other speed reduction mechanisms can also be used if conditions permit.

[0053] In this embodiment, the body 100 is a hollow rotating body with openings at both the top and bottom. A power chamber 110, an unlocking chamber 120, and a switching chamber 130 are arranged in the inner cavity from top to bottom. A clamping groove 150 is arranged on the side wall of the unlocking chamber 120; the inclined water body 400, the impeller 500, and the planetary gear set 600 are coaxially arranged in the power chamber 110, and the output shaft 610 of the planetary gear set 600 extends downward into the switching chamber 130; the clamping jaw 300 is coaxially arranged in the unlocking chamber 120 and is intermittently engaged with the clamping groove 150; the switching disk 800 and the water distribution disk 900 are coaxially arranged in the switching chamber 130. Most components in the present invention are coaxially arranged and can be well arranged in the handle part of the shower head. Therefore, the head of the shower head can be freely selected and matched with different appearances, which can greatly reduce the costs of assembly and mold development.

[0054] In this embodiment, a flat hole 320 is arranged in the middle of the clamping jaw 300, and a flat shaft 614 matched with the flat hole 320 is arranged at the corresponding position of the output shaft 610.

[0055] In this embodiment, the unlocking chamber 120 is separately and hermetically arranged from the power chamber 110 and the switching chamber 130. That is, a first partition plate 160 is arranged between the power chamber 110 and the unlocking chamber 120, a second partition plate 170 is arranged between the unlocking chamber 120 and the switching chamber 130, a first through hole 161 is arranged in the middle of the first partition plate 160, a second through hole 171 is arranged in the middle of the second partition plate 170, and first sealing rings 611 and second sealing rings 612 are arranged on the outer wall of the output shaft 610 and are hermetically matched with the first through hole 161 and the second through hole 171 respectively; and a water passing hole 613 is arranged in the middle of the output shaft 610 to communicate the power chamber 110 and the switching chamber 130. Through the above sealing arrangement, the sealing problem at the button 200 can be solved. The button 200 is not affected by the water pressure and has a small operating force. Of course, if the unlocking chamber 120 is the same as the water path, the button 200 has to be sealed. If the button 200 is sealed, the structure will be complicated and the operating feel of the button 200 will also be affected.

[0056] In this embodiment, a button chamber 140 and an unlocking hole 141 are arranged on the side of the body 100. The unlocking hole 141 communicates the button 200 chamber with the unlocking chamber 120. The button 200 is movably arranged in the button chamber 140. An unlocking rod 210 is arranged at the lower end of the button 200. The unlocking rod 210 extends through the unlocking hole 141 into the unlocking chamber 120, and a return spring is arranged below the button 200.

[0057] In this embodiment, three groups of hooks 310 are arranged in an array with the axis of the rotating shaft of the claw 300 as the center. The intermittent rotation of the claw 300 is related to the hooks 310 provided thereon. Assuming that they are all arranged in an equiangular array, the intermittent rotation angle is: 360 / the number of hooks, that is, the angle is 120°. We can design the hooks 310 according to the number of water channels at the rear end and the required water channel combination.

[0058] In this embodiment, the water distribution plate 900 is provided with three groups of water channels, and the claw 300 is provided with six groups of hooks 310. In this case, the angles at which the six groups of hooks 310 stay are 0°, 60°, 120°, 180°, 240°, and 300°. The water channel connection conditions can be: when it is 0°, it is connected to A; when it is 60°, it is connected to AB; when it is 120°, it is connected to B; when it is 180°, it is connected to BC; when it is 240°, it is connected to C; when it is 300°, it is connected to CA.

[0059] The above description shows and describes the preferred embodiments of the present invention. As mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications, and environments, and can be changed within the scope of the inventive concept described herein through the above teachings or the techniques or knowledge in the relevant field. And the changes and variations made by those skilled in the art without departing from the spirit and scope of the present invention should all be within the protection scope of the appended claims of the present invention.

Claims

1. A button switching mechanism, characterized in that Comprising: A body, a button, a claw, an inclined water body, an impeller, a speed reduction mechanism, a switching disc, and a water distribution disc. The body is provided with a water inlet end and a water outlet end. The inclined water body is arranged at the water inlet end to convert water flow into a water flow bundle that impacts the impeller. The water distribution disc is provided with at least two water paths and is fixed to the water outlet end of the body. The switching disc is rotatably arranged on the water distribution disc to sequentially block the water paths. The impeller transmits power to the speed reduction mechanism and outputs at a slow speed with high torque to drive the switching disc to rotate. The claw is linked with the switching disc and intermittently engages with the body. The button is movably arranged on the body to unlock the claw, enabling the switching disc to rotate under hydraulic drive. The body is a hollow rotating body with openings at both the top and bottom. The inner cavity is provided with a power cavity, an unlocking cavity, and a switching cavity from top to bottom. The side wall of the unlocking cavity is provided with a clamping groove. The claw is coaxially arranged in the unlocking cavity and intermittently engages with the clamping groove. A button chamber and an unlocking hole are arranged on the side of the body. The unlocking hole communicates the button chamber with the unlocking cavity. The button is movably arranged in the button chamber. An unlocking rod is arranged at the lower end of the button. The unlocking rod extends through the unlocking hole into the unlocking cavity. And a return spring is arranged below the button.

2. The button switching mechanism according to claim 1, wherein The speed reduction mechanism is a planetary gear set. The first-stage sun gear of the planetary gear set is coaxially and fixedly arranged with the impeller. The end of the output shaft of the planetary gear set is coaxially and fixedly arranged with the switching disc. The claw is coaxially and fixedly arranged in the middle of the output shaft.

3. The push-button switching mechanism according to claim 2, characterized in that, The inclined water body, the impeller, and the planetary gear set are coaxially arranged in the power cavity. The output shaft of the planetary gear set extends downward into the switching cavity. The switching disc and the water distribution disc are coaxially arranged in the switching cavity.

4. A button switching mechanism according to claim 3, characterized in that The unlocking cavity is separately and hermetically sealed from the power cavity and the switching cavity. That is, a first partition plate is arranged between the power cavity and the unlocking cavity, and a second partition plate is arranged between the unlocking cavity and the switching cavity. A first through hole is arranged in the middle of the first partition plate, and a second through hole is arranged in the middle of the second partition plate. First and second sealing rings are arranged on the outer wall of the output shaft to be hermetically matched with the first and second through holes respectively. And a through hole is arranged in the middle of the output shaft to communicate the power cavity and the switching cavity.

5. A button switching mechanism according to any one of claims 1 to 4, characterized in that At least two groups of hooks are arranged on the claw in an array with its rotating shaft as the center.

6. A button switching mechanism according to any one of claims 2 to 4, characterized in that A flat hole is arranged in the middle of the claw, and a flat shaft matched with the flat hole is arranged at the corresponding position of the output shaft.

7. A button switching mechanism according to claim 5, characterized in that, The water distribution disc is provided with three groups of water paths, and the claw is provided with three groups of hooks.

8. A button switching mechanism according to claim 5, characterized in that, The water distribution disc is provided with three groups of water paths, and the claw is provided with six groups of hooks.

9. A button switching mechanism according to any one of claims 2, 3, and 4, characterized in that The tooth ring of the planetary gear set is integrally arranged on the side wall of the power cavity.

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