Waterway switching mechanism and water outlet device

Abstract

The present invention discloses a waterway switching mechanism and a water outlet device thereof. Each group of switching parts in the waterway switching mechanism has a different length. The starting member moves axially and drives the transmission member to move axially and rotate circumferentially through the transmission cooperation between the first tooth group and the second tooth group so that the switching parts of different lengths can cooperate with the tooth groove switching top of the second tooth group, thereby making the sealing seat move axially with different displacements to seal or open the water inlet channel or the water outlet channel. Multiple water outlet states can be realized in the same waterway switching mechanism. For example, taking the setting of two water outlet channels as an example, there will be at least three water outlet states: two water outlet states in which the water inlet channel is connected to one of the water outlet channels respectively, and one water outlet state in which the water inlet channel is connected to two water outlet channels at the same time. This kind of waterway switching mechanism can simplify the overall structure of the water outlet device, and is convenient to switch. It only needs to control the same waterway switching mechanism to realize the switching of multiple water outlet states.

Description

Technical Field

[0001] The invention relates to a waterway switching mechanism and a water outlet device thereof. Background Art

[0002] The existing multifunctional shower head includes water outlet terminals such as hand-held shower head, overhead shower head and faucet, and has multiple water channel switching mechanisms, each of which can only switch two water outlet terminals, such as one water channel switching mechanism switches the hand-held shower head and overhead shower head, and the other water channel switching mechanism switches the faucet and hand-held shower head. The structure of this multifunctional shower head is relatively complex, and there are many switching mechanisms, which makes the switching cumbersome. Users need to frequently switch multiple water channel switching mechanisms to achieve the desired water outlet state, which is inconvenient to use.

[0003] It is necessary to improve the existing water channel switching mechanism so that one water channel switching mechanism has multiple switching states to achieve multiple water outlet states. Summary of the invention

[0004] The present invention provides a water channel switching mechanism and a water outlet device thereof, which overcomes the shortcomings of the background technology. One of the technical solutions adopted by the present invention to solve the technical problem is:

[0005] Waterway switching mechanism, which includes:

[0006] The fixed part of the shell is provided with a switching cavity, a water inlet channel, and at least two water outlet channels. The water inlet channel and the water outlet channel are both connected to the switching cavity and are arranged at intervals along the axial direction of the switching cavity. The wall of the switching cavity is provided with at least two groups of switching parts of different lengths, and each group of switching parts includes at least two switching parts of the same length and arranged at intervals.

[0007] A starter, which is axially movably mounted in the switching cavity and is provided with a first gear set;

[0008] A transmission member is located in the switching cavity and is in transmission connection with the starter. The transmission member is provided with a second tooth group, and the second tooth group is provided with tooth grooves. The transmission member can move axially and rotate circumferentially through the transmission cooperation between the first tooth group and the second tooth group.

[0009] A sealing seat, which cooperates with the transmission member to enable the transmission member to move axially in the switching chamber;

[0010] The resetting elastic member has two ends which respectively abut against the switching cavity and the sealing seat;

[0011] The starting member moves axially and drives the transmission member to move axially and rotate circumferentially through the transmission cooperation between the first tooth group and the second tooth group so that switching parts of different lengths can cooperate with the tooth groove switching top of the second tooth group, thereby causing the sealing seat to move different displacements in the axial direction to seal or open the water inlet channel or the water outlet channel.

[0012] In a preferred embodiment: the first tooth group includes a plurality of first tooth portions arranged in an annular manner, and a limiting groove is formed between two adjacent first tooth portions; the second tooth group includes a second tooth portion and a third tooth portion arranged in an staggered annular manner, and a yield groove is formed between the second tooth portion and the third tooth portion, and the tooth groove is arranged at the top end of the third tooth portion; at least one set of switching portions is always located in the limiting groove to circumferentially limit the starting member.

[0013] In a preferred embodiment, the width of the limiting groove and the width of the giving way groove are both greater than the width of each switching portion.

[0014] In a preferred embodiment: the first tooth portion has a first tooth protrusion at the bottom end, the second tooth portion has a second tooth surface arranged obliquely at the top end, the third tooth portion has a third tooth surface and a fourth tooth surface arranged obliquely at the top end, and the tooth groove is located at the bottom end of the third tooth surface.

[0015] In a preferred embodiment: the starting member includes a hollow starting rod and a first toothed disc fixedly connected to the bottom end of the starting rod, the first tooth group is arranged on the outer periphery of the first toothed disc, a through hole is opened at the top of the switching cavity, and the starting rod extends out of the switching cavity through the through hole; the transmission member includes a transmission rod and a second toothed disc fixedly connected to the lower end of the transmission rod, the second tooth group is arranged on the outer periphery of the second toothed disc, the second toothed disc is located below the first toothed disc and the transmission rod is sleeved in the starting rod.

[0016] In a preferred embodiment: the transmission member further comprises a rotating rod fixedly connected to the bottom end of the second gear disc, a rotating groove is provided at the top end of the sealing seat, and the rotating rod and the rotating groove are rotationally matched.

[0017] In a preferred embodiment: the shell part is provided with two water outlet channels, namely the first water outlet channel and the second water outlet channel, and the first water outlet channel and the second water outlet channel are arranged axially at intervals along the switching chamber; the outer periphery of the sealing seat is provided with a first sealing gasket and a second sealing gasket, which are respectively used to seal the inlet of the first water outlet channel and the inlet of the second water outlet channel.

[0018] In a preferred embodiment: the switching part is provided with two groups, one group includes a first switching part with a longer length, and the other group includes a second switching part with a shorter length. When the first switching part abuts against the tooth groove, the sealing seat is in the lowest position and the first sealing gasket leaves the inlet of the first water outlet channel to open the first water outlet channel, and the second sealing gasket seals the inlet of the second water outlet channel to close the second water outlet channel; when the second switching part abuts against the tooth groove, the sealing seat is in the middle position and the first sealing gasket seals the inlet of the first water outlet channel to close the first water outlet channel, and the second sealing gasket leaves the inlet of the second water outlet channel to open the second water outlet channel; when both the first switching part and the second switching part do not abut against the tooth groove, the sealing seat is in the highest position and the first sealing gasket leaves the inlet of the first water outlet channel to open the first water outlet channel, and the second sealing gasket leaves the inlet of the second water outlet channel to open the second water outlet channel.

[0019] In a preferred embodiment: the switching part is provided with three groups, and the three groups of switching parts respectively include a first switching part with the longest length, a second switching part with a medium length, and a third switching part with the shortest length. When the first switching part abuts against the tooth groove, the sealing seat is at the lowest position and the first sealing gasket leaves the inlet of the first water outlet channel to open the first water outlet channel, and the second sealing gasket seals the inlet of the second water outlet channel to close the second water outlet channel; when the second switching part abuts against the tooth groove, the sealing seat is at the first middle position above the lowest position and the first sealing gasket seals the inlet of the first water outlet channel to close the second water outlet channel. The first water outlet channel and the second sealing gasket leave the inlet of the second water outlet channel to open the second water outlet channel; when the third switching part abuts against the tooth groove, the sealing seat is at the second middle position above the first middle position and the first sealing gasket leaves the inlet of the first water outlet channel to open the first water outlet channel, and the second sealing gasket leaves the inlet of the second water outlet channel to open the second water outlet channel; when the first switching part, the second switching part and the third switching part are not abutting against the tooth groove, the sealing seat is at the highest position and the first sealing gasket seals the outlet of the water inlet channel so that no water flows out of the first water outlet channel and the second water outlet channel.

[0020] In a preferred embodiment: the shell part includes a shell and a nut seat fixed to the shell, the water inlet channel and the water outlet channel are both opened in the shell, the nut seat and the shell form the switching cavity, and the switching part is arranged on the inner wall of the nut seat; and the switching mechanism also includes a switching button, which is slidably mounted on the top of the nut seat and is transmission-connected to the starting member.

[0021] The second technical solution adopted by the present invention to solve its technical problem is: a water outlet device using the water channel switching mechanism described in any one of the above items, the water outlet device is provided with water outlet terminals whose number is the same as the number of water outlet channels and corresponds one to one, and the water channel switching mechanism is used to enable the water outlet device to have at least three or more water outlet states.

[0022] In a preferred embodiment, there are two water outlet channels, and two water outlet terminals are respectively a hand-held shower and an overhead shower. The water outlet nozzles of the hand-held shower and the overhead shower are respectively connected to the two water outlet channels.

[0023] Compared with the background technology, this technical solution has the following advantages:

[0024] 1. Since the length of each set of switching parts is different, the starter moves axially and drives the transmission part to move axially and rotate circumferentially through the transmission cooperation between the first tooth group and the second tooth group so that the switching parts of different lengths can cooperate with the tooth groove switching of the second tooth group, thereby making the sealing seat move axially with different displacements to seal or open the water inlet channel or the water outlet channel. Multiple water outlet states can be achieved in the same water channel switching mechanism. For example, taking the setting of two water outlet channels as an example, there will be at least three water outlet states: two water outlet states in which the water inlet channel is connected to one of the water outlet channels respectively, and one water outlet state in which the water inlet channel is connected to both water outlet channels at the same time. This water channel switching mechanism can simplify the overall structure of the water outlet device, and is easy to switch. It only needs to control the same water channel switching mechanism to achieve the switching of multiple water outlet states.

[0025] 2. Switching parts of different lengths can cooperate with the tooth-groove switching top to realize the switching of the waterway. At the same time, at least one set of switching parts is always located in the limiting groove to limit the circumferential position of the starting member, further simplifying the structure of the waterway switching mechanism.

[0026] 3. The width of the limit groove and the width of the give way groove are both greater than the width of each switching part, so that the same switching part can extend into the limit groove and the corresponding give way groove at the same time. At this time, the lower bottom surface of the first tooth group is in contact with the upper top surface of the second tooth group, and the sealing seat is located at the highest position.

[0027] 4. A first tooth protrusion is provided at the bottom end of the first tooth portion, a second tooth surface arranged obliquely is provided at the top end of the second tooth portion, a third tooth surface and a fourth tooth surface arranged obliquely are provided at the top end of the third tooth portion, and the tooth groove is located at the bottom end of the third tooth surface. When the first tooth protrusion corresponds to and abuts against the second tooth surface or the third tooth surface or the fourth tooth surface, it can drive the transmission member to rotate circumferentially, and the circumferential rotation of the transmission member can make the switching portion correspond to the give way groove or tooth groove, thereby making the sealing seat reach different heights.

[0028] 5. The transmission member can rotate circumferentially relative to the sealing seat by rotating the rotating rod and the rotating groove. At the same time, pressing the starting member drives the transmission member to move axially downward. Under the cooperation of the rotating rod and the rotating groove, the transmission member can also drive the sealing seat to move axially downward. When the starting member is released, the sealing seat moves axially upward under the action of the reset elastic member. At the same time, the transmission member is driven to move axially upward under the cooperation of the rotating rod and the rotating groove.

[0029] 6. When the two sets of switching parts respectively include a first switching part with a longer length and a second switching part with a shorter length, three water outlet states can be realized: the water inlet channel is only connected to the first water outlet channel, the water inlet channel is only connected to the second water outlet channel, and the water inlet channel is connected to both water outlet channels at the same time.

[0030] 7. The three groups of switching parts include a first switching part with the longest length, a second switching part with a medium length, and a third switching part with the shortest length, which can realize four water outlet states: the water inlet channel is only connected to the first water outlet channel, the water inlet channel is only connected to the second water outlet channel, the water inlet channel is connected to both water outlet channels at the same time, and the water inlet channel is not connected to either water outlet channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0032] Figure 1 A front view schematic diagram of a waterway switching mechanism of a preferred embodiment is depicted.

[0033] Figure 2 A left side schematic diagram of a waterway switching mechanism of a preferred embodiment is depicted.

[0034] Figure 3 A right side view of a waterway switching mechanism of a preferred embodiment is depicted.

[0035] Figure 4 A three-dimensional exploded schematic diagram of a waterway switching mechanism of a preferred embodiment is depicted.

[0036] Figure 5 A structural schematic diagram of the nut seat is shown.

[0037] Figure 6 A schematic top view of the nut seat is shown.

[0038] Figure 7 Draws Figure 6 AA cross-sectional view of .

[0039] Figure 8 A schematic structural diagram of the transmission component is shown.

[0040] Fig. 9 A top view schematic diagram of a transmission member is depicted.

[0041] Fig.10 A schematic diagram of the assembly of the switch button, nut seat and starter is shown from above.

[0042] Fig.11 Draws Fig.10 BB cross-sectional view.

[0043] Fig.12A state schematic diagram of the water channel switching mechanism is drawn, at which time the first water outlet channel and the second water outlet channel simultaneously discharge water.

[0044] Fig.13 Draws Fig.12 Schematic diagram of the bottom view of the nut seat, starting part and transmission part during assembly.

[0045] Fig.14 Draws Fig.13 Schematic diagram of CC cross-section.

[0046] Fig.15 A schematic diagram of the state of the water channel switching mechanism is drawn, at which time only the first water outlet channel is discharging water.

[0047] Fig.16 Draws Fig.15 A cross-sectional view of the nut seat and the transmission member.

[0048] Fig.17 A schematic diagram of the state of the water channel switching mechanism is drawn, at which time only the second water outlet channel is discharging water.

[0049] Fig.18 Draws Fig.17 A cross-sectional view of the nut seat and the transmission member.

[0050] Fig.19 A three-dimensional exploded schematic diagram of the water outlet device is drawn.

[0051] Fig. 20 A schematic diagram is drawn showing the state where two shower heads of the water outlet device are discharging water at the same time.

[0052] Fig.21 A schematic diagram showing the water discharge status of the top spray shower of the water discharge device is drawn.

[0053] Fig. 22 A schematic diagram showing the water discharge state of a handheld showerhead of a water discharge device is depicted. DETAILED DESCRIPTION

[0054] Please refer to Figures 1 to 18 , a preferred embodiment of the waterway switching mechanism, the waterway switching mechanism includes a shell fixing part, a starting member 30, a transmission member 40, a sealing seat 50 and a reset elastic member 60.

[0055] The fixed part of the shell is provided with a switching chamber 11, a water inlet channel 12, and at least two water outlet channels. The water inlet channel 12 and the water outlet channel are both connected to the switching chamber 11 and are arranged at intervals along the axial direction of the switching chamber 11. The wall of the switching chamber 11 is provided with at least two groups of switching parts with different lengths, and each group of switching parts includes at least two switching parts with the same length and arranged at intervals.

[0056] In this embodiment, the housing portion includes a housing 10 and a nut seat 20 fixed to the housing, the water inlet channel 12 and the water outlet channel are both provided in the housing 10, the nut seat 20 and the housing 10 form the switching chamber 11, and the switching portion is provided on the inner wall of the nut seat 20. Fig.12 As shown, the nut seat 20 and the housing 10 are connected and matched by internal and external threads; the connection between the two can also be achieved by other connection methods such as snap connection or screw locking, but is not limited to this.

[0057] In this embodiment, the shell part is provided with two water outlet channels, namely a first water outlet channel 13 and a second water outlet channel 14. The first water outlet channel 13 and the second water outlet channel 14 are arranged axially spaced apart from each other along the switching chamber 11. Fig.12 As shown, the first water outlet channel 13 and the water inlet channel 12 are arranged at intervals inside and outside and are both located on the left side of the switching chamber 11, the outlet of the water inlet channel 12 and the inlet of the first water outlet channel 13 are arranged at intervals up and down and are connected to the switching chamber 11, and the second water outlet channel 14 is located on the right side of the switching chamber 11 and the inlet of the second water outlet channel 14 is located below the inlet of the first water outlet channel 13. The number of water outlet channels is not limited to this, and is subject to the number of required water outlet terminals.

[0058] like Figure 6 As shown, there are two groups of switching parts, and the two groups of switching parts are arranged in a ring-shaped manner. Figure 5 As shown, the two groups of switching parts respectively include a first switching part 21 with a longer length and a second switching part 22 with a shorter length. A partition 23 is provided inside the nut seat 20, and the top ends of all the switching parts are fixedly connected to the bottom surface of the partition 23, so that the lengths of the bottom ends of all the switching parts extending downward are different. The number of groups of switching parts is not limited to this, and can be three or four groups; at the same time, the number of switching parts in each group of switching parts is not limited to this, and can be three or four groups.

[0059] The starter 30 is axially movably mounted in the switching chamber 11 and is provided with a first tooth set.

[0060] In this embodiment, the first tooth group includes a plurality of first tooth portions 31 arranged in an annular manner, and a limiting groove 32 is formed between two adjacent first tooth portions 31. At least one set of switching parts is always located in the limiting groove 32 to limit the circumferential position of the starter. Fig.10 As shown, there are nine first tooth portions 31 and nine limiting grooves 32 .

[0061] In this embodiment, a first tooth protrusion 33 is disposed at the bottom end of the first tooth portion 31 .

[0062] In this embodiment, the starting member includes a hollow starting rod 34 and a first toothed disc 35 fixedly connected to the bottom end of the starting rod 34. The first tooth group is arranged on the outer periphery of the first toothed disc 35. A through hole 111 is opened at the top of the switching chamber 11. The starting rod 34 extends out of the switching chamber 11 through the through hole 111.

[0063] In this embodiment, the waterway switching mechanism further includes a switching button 70, which is slidably mounted on the top of the nut seat 20 and is in transmission connection with the starter 30. Fig.11 As shown, the switch button 70 is in driving cooperation with the top end of the start rod 34 .

[0064] The transmission member 40 is located in the switching cavity 11 and is transmission-connected to the starting member 30. The transmission member 40 is provided with a second tooth group, and the second tooth group is provided with a tooth groove 41. The transmission member 40 can move axially and rotate circumferentially through the transmission cooperation between the first tooth group and the second tooth group.

[0065] In this embodiment, Figure 8 As shown, the second tooth group includes a second tooth portion 42 and a third tooth portion 43 arranged in a staggered annular interval, a clearance groove 44 is formed between the second tooth portion 42 and the third tooth portion 43, and the tooth groove 41 is arranged at the top of the third tooth portion 43. There are three second tooth portions 42 and three third tooth portions 43, and the number of the clearance grooves 44 is the same as the number of the switching portions, both of which are six.

[0066] In this embodiment, the width of the limiting groove 32 and the width of the giving groove 44 are both greater than the width of the first switching portion 21 or the second switching portion 22 .

[0067] In this embodiment, the second tooth portion 42 has an inclined second tooth surface 421 at its top, the third tooth portion 43 has an inclined third tooth surface 431 and a fourth tooth surface 432 at its top, and the tooth groove 41 is located at the bottom of the third tooth surface 431 .

[0068] In this embodiment, the transmission member 40 includes a transmission rod 45 and a second gear plate 46 fixedly connected to the lower end of the transmission rod 45, the second tooth group is arranged on the outer periphery of the second gear plate 46, the second gear plate 46 is located below the first gear plate 35 and the transmission rod 45 is sleeved in the starting rod 34.

[0069] In this embodiment, the transmission member 40 further includes a rotating rod 47 fixedly connected to the bottom end of the second gear plate 46 .

[0070] The sealing seat 50 is in transmission cooperation with the transmission member 40 so as to enable the sealing seat 50 to move axially in the switching chamber 11 .

[0071] In this embodiment, a rotation groove 51 is provided at the top of the sealing seat 50 , and the rotation rod 47 can rotate in the rotation groove 51 .

[0072] In this embodiment, the first sealing gasket 52 and the second sealing gasket 53 are respectively provided on the outer periphery of the sealing seat 50 for sealing the inlet of the first water outlet channel 13 and the inlet of the second water outlet channel 14. The two ends of the reset elastic member 60 abut against the switching chamber 11 and the sealing seat 50 respectively.

[0073] The starting member 30 moves axially and drives the transmission member 40 to move axially and rotate circumferentially through the transmission cooperation between the first tooth group and the second tooth group so that switching parts of different lengths can switch and abut with the tooth grooves 41 of the second tooth group, thereby causing the sealing seat 50 to move different displacements in the axial direction to seal or open the water inlet channel 12 or the water outlet channel.

[0074] In this embodiment, Fig.15 and Fig.16 As shown, when the first switching portion 21 abuts against the tooth groove 41, the sealing seat 50 is at the lowest position and the first sealing gasket 51 leaves the inlet of the first water outlet channel 13 to open the first water outlet channel 13, and the second sealing gasket 52 seals the inlet of the second water outlet channel 14 to close the second water outlet channel 14; Fig.17 and Fig.18 As shown, when the second switching portion 22 abuts against the tooth groove 41, the sealing seat 50 is in the middle position and the first sealing gasket 51 seals the inlet of the first water outlet channel 13 to close the first water outlet channel 13, and the second sealing gasket 52 leaves the inlet of the second water outlet channel 14 to open the second water outlet channel 14; Fig.12 and Fig.14 As shown, when the first switching part 21 and the second switching part 22 are not against the tooth groove 41, the sealing seat 50 is in the highest position and the first sealing gasket 51 leaves the inlet of the first water outlet channel 13 to open the first water outlet channel 13, and the second sealing gasket 52 leaves the inlet of the second water outlet channel 14 to open the second water outlet channel 14.

[0075] Furthermore, the working principle of the waterway switching mechanism is as follows:

[0076] like Fig.12 As shown, this state is taken as the initial state, referred to as the first gear. At this time: Fig.14 As shown, the bottom surface of the first tooth group contacts the top surface of the second tooth group, that is, the corresponding first tooth protrusion 33 abuts against the third tooth surface 431; each switching portion extends into the corresponding limiting groove 32 and the giving way groove 44, the sealing seat 50 is located at the highest position, the first sealing gasket 51 is partially staggered with the inlet of the first water outlet channel 13, the second sealing gasket 52 is completely staggered with the inlet of the second water outlet channel 14, and the first water outlet channel 13 and the second water outlet channel 14 are both connected to the water inlet channel 12;

[0077] The switching button 70 is pressed to drive the starter 30 to move downward along the switching cavity 11. Under the action of the switching part, the starter 30 drives the transmission member 40 to move downward until the displacement groove 44 is separated from the switching part. When the first tooth protrusion 33 presses downward against the third tooth surface 431, it drives the transmission member 40 to rotate circumferentially until the corresponding first tooth protrusion 33 is located in the tooth groove 41. That is, at this time, the first switching part 21 corresponds to the tooth groove 41. During the downward movement of the transmission member 40, the sealing seat 50 is driven downward, and the reset elastic member 60 is compressed; the switching button 70 is released, and the reset elastic member 60 presses upward against the sealing seat 50 to move the sealing seat 50 upward. The sealing seat 50 drives the transmission member 40 to move upward, and the transmission member 40 drives the starter 30 to move upward. When the first switching part 21 presses against the tooth groove 41, the transmission member 40 stops moving upward. At this time, it is the second gear: Fig.15 As shown, the sealing seat 50 is located at the lowest position, the top of the first sealing gasket 51 is staggered with the inlet of the first water outlet channel 13 so that the first water outlet channel 13 is connected with the water inlet channel 12, and the second sealing gasket 52 seals the inlet of the second water outlet channel 14;

[0078] Press the switch button 70 again to drive the starter 30 to move downward along the switch cavity 11, and the starter 30 drives the transmission member 40 to move downward so that the first switch portion 21 leaves the tooth groove 41 and drives the transmission member 40 to rotate circumferentially through the cooperation between the first tooth protrusion 33 and the third tooth surface 431 until the tooth groove 41 corresponds to the second switch portion 22; release the switch button 70, the reset elastic member 60 presses upward against the sealing seat 50 to move the sealing seat 50 upward, the sealing seat 50 drives the transmission member 40 to move upward, and the transmission member 40 drives the starter 30 to move upward, and when the second switch portion 22 presses against the tooth groove 41, the transmission member 40 stops moving upward, and it is the third gear at this time: Fig.17 As shown, the sealing seat 50 is located in the middle position, the first sealing gasket 51 seals the inlet of the first water outlet channel 13, and the second sealing gasket 52 is staggered with the inlet of the second water outlet channel 14 so that the second water outlet channel 14 is connected with the water inlet channel 12;

[0079] When the switch button 70 is continuously pressed, the first gear position is returned to, and the cycle repeats.

[0080] As required, the switching part can be designed into three groups, and the three groups of switching parts respectively include a first switching part with the longest length, a second switching part with a medium length, and a third switching part with the shortest length. When the first switching part abuts against the tooth groove 41, the sealing seat 50 is in the lowest position and the first sealing gasket 51 leaves the inlet of the first water outlet channel 13 to open the first water outlet channel 13, and the second sealing gasket 52 seals the inlet of the second water outlet channel 14 to close the second water outlet channel 14; when the second switching part abuts against the tooth groove, the sealing seat 50 is in the first middle position above the lowest position and the first sealing gasket 51 seals the inlet of the first water outlet channel 13 to close the first water outlet channel 13 , the second sealing gasket 52 leaves the inlet of the second water outlet channel 14 to open the second water outlet channel 14; when the third switching part abuts against the tooth groove 41, the sealing seat 50 is in the second middle position above the first middle position and the first sealing gasket 51 leaves the inlet of the first water outlet channel 13 to open the first water outlet channel 13, and the second sealing gasket 52 leaves the inlet of the second water outlet channel 14 to open the second water outlet channel 14; when the first switching part, the second switching part and the third switching part are not abutted against the tooth groove 41, the sealing seat 50 is in the highest position and the first sealing gasket 51 seals the outlet of the water inlet channel 12 so that no water flows out of the first water outlet channel 13 and the second water outlet channel 14.

[0081] The water outlet device using the water channel switching mechanism described above is provided with water outlet terminals whose number is the same as the number of water outlet channels and which correspond one to one. The water channel switching mechanism is used to enable the water outlet device to have at least three water outlet states.

[0082] There are two water outlet terminals, which are a hand-held shower and an overhead shower. The water outlet nozzles of the hand-held shower and the overhead shower are connected to two water outlet channels respectively.

[0083] The specific structure of the water outlet device is as follows: Figures 19 to 22 As shown, it includes a connecting head 100, a hand-held shower head 200, an overhead shower head 300 and a connecting pipe 400. The connecting head 100 is fixedly connected to the overhead shower head 300, and the connecting pipe 400 is fixedly connected to the hand-held shower head 200 and the overhead shower head 300.

[0084] The connector 100 is provided with a water inlet chamber 110 and a water outlet chamber 120, the connecting pipe 400 is provided with an outer flow channel 410 and an inner flow channel 420 located in the outer flow channel 410, the water channel switching mechanism is arranged at the hand-held shower 200, and the water inlet channel is connected with the outer flow channel 410 of the connecting pipe 400, the inner flow channel 420 is connected with the water outlet chamber 120 of the connector 100, the water outlet chamber 120 is connected with the water outlet nozzle of the top spray shower 300, the first water outlet channel 13 is connected with the inner flow channel 420 of the connecting pipe 400, and the second water outlet channel 14 is connected with the water outlet nozzle of the hand-held shower 200.

[0085] Please refer to Fig. 20 , is the state when the water channel switching mechanism is in the first gear position, water enters the connector 100 from the water inlet chamber 110, and then flows through the outer flow channel 410 of the connecting pipe 400 into the water inlet channel 12, one channel of water flows from the first water outlet channel 13 through the inner flow channel 420 of the connecting pipe 400 and the water outlet chamber 120 into the water outlet of the top spray shower 300, and the top spray shower 300 discharges water, and the other channel of water flows from the second water outlet channel 14 into the water outlet of the handheld shower 200, and the handheld shower 200 discharges water;

[0086] Please refer to Fig.21 , is the state when the water channel switching mechanism is in the second gear position, only the first water outlet channel 13 is connected with the water inlet channel 12, and only the top spray shower 300 discharges water;

[0087] Please refer to Fig. 22 , is the state when the water channel switching mechanism is in the third gear, only the second water outlet channel 14 is connected to the water inlet channel 12, and only the handheld showerhead 200 discharges water.

[0088] The above description is only a preferred embodiment of the present invention, and therefore cannot be used to limit the scope of the present invention. That is, equivalent changes and modifications made according to the patent scope of the present invention and the contents of the specification should still fall within the scope of the present invention.

Claims

1. Waterway switching mechanism, characterized in that: It includes: The fixed part of the shell is provided with a switching cavity, a water inlet channel, and at least two water outlet channels. The water inlet channel and the water outlet channel are both connected to the switching cavity and are arranged at intervals along the axial direction of the switching cavity. The wall of the switching cavity is provided with at least two groups of switching parts of different lengths, and each group of switching parts includes at least two switching parts of the same length and arranged at intervals. A starter, which is axially movably mounted in the switching cavity and is provided with a first gear set; A transmission member is located in the switching cavity and is in transmission connection with the starter. The transmission member is provided with a second tooth group, and the second tooth group is provided with tooth grooves. The transmission member can move axially and rotate circumferentially through the transmission cooperation between the first tooth group and the second tooth group. A sealing seat, which cooperates with the transmission member to enable the transmission member to move axially in the switching chamber; The resetting elastic member has two ends which respectively abut against the switching cavity and the sealing seat; The starter moves axially and drives the transmission member to move axially and rotate circumferentially through the transmission cooperation between the first tooth group and the second tooth group so that the switching parts of different lengths can be matched with the tooth groove switching of the second tooth group, thereby causing the sealing seat to move different displacements in the axial direction to seal or open the water inlet channel or the water outlet channel; The shell part is provided with two water outlet channels, namely a first water outlet channel and a second water outlet channel, which are arranged axially with each other along the switching chamber; a first sealing gasket and a second sealing gasket are provided on the outer periphery of the sealing seat for sealing the inlet of the first water outlet channel and the inlet of the second water outlet channel respectively; The switching part is provided with three groups, and the three groups of switching parts respectively include a first switching part with the longest length, a second switching part with a medium length, and a third switching part with the shortest length. When the first switching part abuts against the tooth groove, the sealing seat is in the lowest position, and the first sealing gasket leaves the inlet of the first water outlet channel to open the first water outlet channel, and the second sealing gasket seals the inlet of the second water outlet channel to close the second water outlet channel; when the second switching part abuts against the tooth groove, the sealing seat is in a first middle position above the lowest position, and the first sealing gasket seals the inlet of the first water outlet channel to close the first water outlet channel, and the second sealing gasket leaves the inlet of the second water outlet channel to open the second water outlet channel; when the third switching part abuts against the tooth groove, the sealing seat is in a second middle position above the first middle position, and the first sealing gasket leaves the inlet of the first water outlet channel to open the first water outlet channel, and the second sealing gasket leaves the inlet of the second water outlet channel to open the second water outlet channel; when the first switching part, the second switching part, and the third switching part are not abutted against the tooth groove, the sealing seat is in the highest position, and the first sealing gasket seals the outlet of the water inlet channel so that no water flows out of the first water outlet channel and the second water outlet channel.

2. The waterway switching mechanism according to claim 1, characterized in that: The first tooth group includes a plurality of first tooth portions arranged at an annular interval, and a limiting groove is formed between two adjacent first tooth portions; the second tooth group includes a second tooth portion and a third tooth portion arranged at an staggered annular interval, and a yield groove is formed between the second tooth portion and the third tooth portion, and the tooth groove is arranged at the top end of the third tooth portion; at least one group of switching portions is always located in the limiting groove to circumferentially limit the starting member.

3. The waterway switching mechanism according to claim 2, characterized in that: The width of the limiting groove and the width of the giving way groove are both greater than the width of each switching portion.

4. The waterway switching mechanism according to claim 3, characterized in that: The first tooth portion has a first tooth protrusion at the bottom end, the second tooth portion has a second tooth surface arranged obliquely at the top end, the third tooth portion has a third tooth surface and a fourth tooth surface arranged obliquely at the top end, and the tooth groove is located at the bottom end of the third tooth surface.

5. The waterway switching mechanism according to claim 4, characterized in that: The starting member includes a hollow starting rod and a first toothed disc fixedly connected to the bottom end of the starting rod, the first tooth group is arranged on the outer periphery of the first toothed disc, a through hole is opened at the top of the switching cavity, and the starting rod passes through the through hole and extends out of the switching cavity; the transmission member includes a transmission rod and a second toothed disc fixedly connected to the lower end of the transmission rod, the second tooth group is arranged on the outer periphery of the second toothed disc, the second toothed disc is located below the first toothed disc and the transmission rod is sleeved in the starting rod.

6. The waterway switching mechanism according to claim 5, characterized in that: The transmission member also includes a rotating rod fixedly connected to the bottom end of the second gear disc, and a rotating groove is provided at the top end of the sealing seat, and the rotating rod is rotationally matched with the rotating groove.

7. The waterway switching mechanism according to claim 1, characterized in that: The switching part is provided with two groups, one group includes a first switching part with a longer length, and the other group includes a second switching part with a shorter length. When the first switching part abuts against the tooth groove, the sealing seat is in the lowest position and the first sealing gasket leaves the inlet of the first water outlet channel to open the first water outlet channel, and the second sealing gasket seals the inlet of the second water outlet channel to close the second water outlet channel; when the second switching part abuts against the tooth groove, the sealing seat is in the middle position and the first sealing gasket seals the inlet of the first water outlet channel to close the first water outlet channel, and the second sealing gasket leaves the inlet of the second water outlet channel to open the second water outlet channel; when both the first switching part and the second switching part do not abut against the tooth groove, the sealing seat is in the highest position and the first sealing gasket leaves the inlet of the first water outlet channel to open the first water outlet channel, and the second sealing gasket leaves the inlet of the second water outlet channel to open the second water outlet channel.

8. The waterway switching mechanism according to claim 1, characterized in that: The shell part includes a shell and a nut seat fixed to the shell, the water inlet channel and the water outlet channel are both opened in the shell, the nut seat and the shell form the switching cavity, and the switching part is arranged on the inner wall of the nut seat; and the switching mechanism also includes a switching button, which is slidably mounted on the top of the nut seat and is transmission-connected to the starting member.

9. A water outlet device using the water channel switching mechanism according to any one of claims 1 to 8, characterized in that: The water outlet device is provided with water outlet terminals having the same number as the number of water outlet channels and corresponding to each other. The water channel switching mechanism is used to enable the water outlet device to have at least three or more water outlet states.

10. The water outlet device using the water channel switching mechanism according to claim 9, characterized in that: There are two water outlet channels, and there are two water outlet terminals, which are a handheld shower and an overhead shower. The water outlet nozzles of the handheld shower and the overhead shower are connected to the two water outlet channels respectively.

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