Hydraulic switching structure of top shower head

Abstract

The utility model provides a hydraulic switching structure of a top shower head, which comprises a body and a reciprocating hydraulic switching mechanism arranged in the body, and the body is provided with a water inlet channel and at least two water outlet channels. The reciprocating type hydraulic switching mechanism can move in a reciprocating mode under the water pressure effect of the water inlet channel so that the water inlet channel can be selectively communicated with all the water outlet channels. The top spraying shower head with the hydraulic switching structure is convenient to use, good in experience feeling, simple in structure and reliable in function.

Description

Technical Field

[0001] The utility model relates to a hydraulic switching structure of a top spray shower. Background Art

[0002] Existing overhead showers (also known as shower heads) usually have only one water outlet mode, and some overhead showers are also provided with more than two water outlet modes. However, the existing overhead showers with more than two water outlet modes usually have a switch (button or handle, etc.) set on the overhead shower for pressing or toggling to realize the switching function. Since the overhead shower is installed at a high height, each time the water outlet mode of the overhead shower is switched, the user needs to be raised with the help of a tool so that the user can reach and drive the switch, which causes the user to switch the water outlet mode of the overhead shower, which is very inconvenient to operate and has a poor user experience. Therefore, in order to realize the remote switching of the overhead shower, some overhead showers in the prior art adopt a hydraulic switching structure. However, the existing hydraulic switching structure usually adopts a ballpoint pen-like snap-press component with a ratchet and ratchet teeth. When the snap-press component is pressed by hydraulic pressure, the snap-press component drives the water distribution plate to rotate to realize the water path switching. Such a hydraulic switching structure is relatively complicated. Therefore, it is necessary to improve the hydraulic switching structure of the existing overhead shower to make its structure simpler. Utility Model Content

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a hydraulic switching structure for an overhead shower head, which is easy to use, has a good user experience, and has a simple structure and reliable functions.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is:

[0005] A hydraulic switching structure for an overhead shower head comprises a body and a reciprocating hydraulic switching mechanism arranged in the body, wherein the body has a water inlet channel and at least two water outlet channels, and the reciprocating hydraulic switching mechanism can reciprocate under the water pressure of the water inlet channel so that the water inlet channel is selectively connected to each of the water outlet channels.

[0006] In some preferred or optional embodiments, the reciprocating hydraulic switching mechanism includes:

[0007] A switching shaft, disposed on the body and capable of sliding between a first switching position and a second switching position so that the water inlet channel is switched to connect with the water outlet channel;

[0008] A swing block, mounted on the switching shaft and capable of swinging between a first swing position and a second swing position;

[0009] a swing driving member, movably mounted on the body, and when the swing block moves to the first switching position or the second switching position along with the switching shaft, and when the water inlet channel is cut off, the swing driving member can drive the swing block to swing between the first swing position and the second swing position;

[0010] A hydraulic driving member is movably mounted on the body and driven by the pressure of the water inlet channel, the hydraulic driving member cooperates with the swing block, and a first guide slope and a second guide slope are provided between the hydraulic driving member and the swing block. When the swing block is located at the first swing position, the hydraulic driving member can cooperate with the swing block through the first guide slope to thereby drive the switching shaft to move from the first switching position to the second switching position; when the swing block is located at the second swing position, the hydraulic driving member can cooperate with the swing block through the second guide slope to thereby drive the switching shaft to move from the second switching position to the first switching position.

[0011] In some preferred or optional embodiments, the swing drive member is capable of giving way to the swing block in a direction perpendicular to the sliding direction of the switching shaft, and the swing drive member includes a first swing inclined plane and a second swing inclined plane spaced apart in the sliding direction of the switching shaft, and when the swing block moves with the switching shaft, the rotation axis of the swing block moves between the first swing inclined plane and the second swing inclined plane, and at the same time, the swing block drives the swing drive member to give way to the swing block in a direction perpendicular to the sliding direction of the switching shaft, and when the switching shaft is located at the first switching position, the swing drive member drives the swing block to swing to the first swing position by resetting the first swing inclined plane; when the switching shaft is located at the second switching position, the swing drive member drives the swing block to swing to the second swing position by resetting the second swing inclined plane.

[0012] In some preferred or optional embodiments, the swing driving member includes a contact plate, which is formed with a groove by bending, and the inner walls of the groove on both sides of the sliding direction of the switching shaft respectively form the first swing inclined surface and the second swing inclined surface, and the inclination directions of the first swing inclined surface and the second swing inclined surface are opposite.

[0013] In some preferred or optional embodiments, the swing drive member is elastically reset, the contact piece is elastically reset by its own elasticity, or the contact piece is elastically reset by a spring; or,

[0014] The swing driving member is reset by magnetism, and the swing driving member further comprises a magnetic member, and the abutment sheet and the magnetic member are magnetically attracted or magnetically repelled; or

[0015] The swing drive is reset by gravity.

[0016] In some preferred or optional embodiments, the first guide slope is provided on the hydraulic driving member and / or the swing block, and the second guide slope is provided on the hydraulic driving member and / or the swing block.

[0017] In some preferred or optional embodiments, the swing block includes a first wedge-shaped portion, one side of the first wedge-shaped portion forms the first guide slope, and the other side of the first wedge-shaped portion forms the second guide slope, and the hydraulic drive component includes a second wedge-shaped portion, one side of the second wedge-shaped portion forms the first guide slope, and the other side of the second wedge-shaped portion forms the second guide slope.

[0018] In some preferred or optional embodiments, the hydraulic drive component includes a piston and a pressure block, the main body has a water pressure chamber connected to the water inlet channel, the piston is slidably arranged in the water pressure chamber, the pressure block is rotatably arranged on the main body and is located outside the water pressure chamber, the water pressure chamber is provided with a through hole, the piston is in abutment and transmission cooperation with the pressure block through the through hole, and the pressure block cooperates with the swing block.

[0019] Some preferred or optional embodiments further include a hydraulic drive member reset member, which drives the hydraulic drive member to reset when the water inlet channel is cut off.

[0020] In some preferred or optional embodiments, the hydraulic drive member reset member and the swing drive member are integrally formed to form a roughly "√"-shaped elastic member.

[0021] In some preferred or optional embodiments, the water outlet channel includes a first water outlet channel and a second water outlet channel, and the main body is provided with a first valve port located between the water inlet channel and the first water outlet channel, and a second valve port located between the water inlet channel and the second water outlet channel. In the first switching position, the switching shaft opens the first valve port and closes the second valve port. In the second switching position, the switching shaft opens the second valve port and closes the first valve port.

[0022] In some preferred or optional embodiments, a switching cavity is provided in the body, the switching shaft is slidably provided in the switching cavity, one end of the switching shaft is provided with a first sealing portion that cooperates with the first valve port and the second valve port, a through pivot hole is radially opened on the switching shaft, the pivot end of the swing block cooperates with the pivot hole, the swing block swings around the pivot hole along the axial direction of the switching shaft, a second sealing portion is provided on the switching shaft between the first sealing portion and the pivot hole, a sealing ring is provided at the second sealing portion, and the switching shaft is slidingly sealed with the inner wall of the switching cavity through the sealing ring.

[0023] Compared with the prior art, the beneficial effects of the utility model are:

[0024] The utility model uses a reciprocating hydraulic switching mechanism, and the reciprocating hydraulic switching mechanism can reciprocate under the water pressure of the water inlet channel of the body so that the water inlet channel is selectively connected to each water outlet channel of the body. In this way, the water circuit switching can be achieved by controlling the water pressure of the water inlet channel by controlling the water flow and water cut-off of the water inlet channel, and the water flow of the water inlet channel can be controlled by operating the control valve located below the top spray shower. It is easy to use and has a good experience. In addition, it is only necessary to drive the reciprocating hydraulic switching mechanism to move back and forth, and the structure is simpler.

[0025] The reciprocating hydraulic switching mechanism of the utility model comprises a switching shaft, a swing block, a swing driving member and a hydraulic driving member. The swing block is swingably mounted on the switching shaft, and the swinging position of the swing block is controlled by the swing driving member. The hydraulic driving member cooperates with the swing member to switch the swing position of the swing member, and the switching shaft can be driven by the swing member to slide and switch in different axial directions, thereby controlling the water flow direction of the water inlet channel. The structural design concept of the reciprocating hydraulic switching mechanism is very ingenious, the structure is simple, and the function is reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0027] in:

[0028] Figure 1 This is one of the three-dimensional assembly diagrams of the overhead shower head according to one embodiment of the utility model;

[0029] Figure 2 This is the second three-dimensional assembly diagram of the overhead shower head of an embodiment of the utility model;

[0030] Figure 3 This is one of the exploded views of the overhead shower head according to one embodiment of the utility model;

[0031] Figure 4 This is the second exploded view of the overhead shower head of an embodiment of the utility model;

[0032] Figure 5 This is the third exploded view of the overhead shower head of an embodiment of the utility model;

[0033] Figure 6 It is a partial cross-sectional view of state 1 (the swing block is in the first swing position, and the switching shaft is in the first switching position) of an embodiment of the utility model;

[0034] Figure 7 yes Figure 6 A schematic diagram of a local three-dimensional structure of the state shown;

[0035] Figure 8 It is a partial cross-sectional view of state 2 (the swing block is in the first swing position, and the switching shaft is in the second switching position) of an embodiment of the utility model;

[0036] Fig. 9 It is a partial cross-sectional view of state three (the swing block is in the second swing position, and the switching shaft is in the second switching position) of an embodiment of the utility model;

[0037] Fig.10 yes Fig. 9 A schematic diagram of a local three-dimensional structure of the state shown;

[0038] Fig.11 It is a partial cross-sectional view of state 4 (the swing block is in the second swing position, and the switching shaft is in the first switching position) of an embodiment of the utility model;

[0039] Fig.12 It is a three-dimensional structural diagram of a pressing block according to an embodiment of the utility model;

[0040] Fig.13 It is a three-dimensional structural diagram of a swing block of an embodiment of the utility model;

[0041] Fig.14 This is a three-dimensional structural diagram of a combination of a swing driving member and a hydraulic driving member reset member (i.e., a "√"-shaped elastic member) of an embodiment of the utility model;

[0042] The reference numerals in the figure are:

[0043] 10-body; 11-water inlet channel; 12-first water outlet channel; 13-second water outlet channel; 14-first valve port; 15-second valve port; 16-water pressure chamber; 161-through hole; 17-switching chamber;

[0044] 20-switching shaft; 21-first sealing portion; 22-pivot hole; 23-second sealing portion; 231-sealing ring;

[0045] 30-swing block; 31-first guide slope; 32-second guide slope; 33-first wedge-shaped portion;

[0046] 40-swing driving member; 41-first swing inclined surface; 42-second swing inclined surface; 43-contact sheet; 431-groove

[0047] 50-hydraulic driving member; 51-piston; 52-pressing block; 521-first guiding inclined surface; 522-second guiding inclined surface; 523-second wedge-shaped portion;

[0048] 60-Hydraulic drive reset part. DETAILED DESCRIPTION

[0049] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0050] See also Figures 1 to 14 The utility model provides a hydraulic switching structure of a top spray shower in a preferred embodiment, comprising a main body 10 and a reciprocating hydraulic switching mechanism arranged in the main body 10, the main body 10 having a water inlet channel 11 and at least two water outlet channels, the reciprocating hydraulic switching mechanism being able to reciprocate under the water pressure of the water inlet channel 11 so that the water inlet channel 11 is selectively connected to each of the water outlet channels.

[0051] Specifically, in the present embodiment, the water outlet channel includes a first water outlet channel 12 and a second water outlet channel 13. The main body 10 is provided with a first valve port 14 located between the water inlet channel 11 and the first water outlet channel 12, a second valve port 15 located between the water inlet channel 11 and the second water outlet channel 13, and a water pressure chamber 16 connected to the water inlet channel 11. The first valve port 14 controls the connection and disconnection between the water inlet channel 11 and the first water outlet channel 12, and the second valve port 15 controls the connection and disconnection between the water inlet channel 11 and the second water outlet channel 13.

[0052] In this embodiment, the reciprocating hydraulic switching mechanism includes a switching shaft 20, a swing block 30, a swing driving member 40 and a hydraulic driving member 50, specifically:

[0053] The switching shaft 20 is provided on the body 10 and can slide between a first switching position and a second switching position so that the water inlet channel 11 is switched to connect to the water outlet channel; specifically, in the first switching position (see Figure 6 and Fig.11 ), the switching shaft 20 opens the first valve port 14 and closes the second valve port 15. In the second switching position (see Figure 8 and Fig. 9 ), the switching shaft 20 opens the second valve port 15 and closes the first valve port 14;

[0054] The swing block 30 is mounted on the switching shaft 20 and can swing between a first swing position and a second swing position. Figure 6 and Figure 8 At this time, the swing block 30 is located at the first swing position, see Fig. 9 and Fig.11 , at this time, the swing block 30 is located at the second swing position;

[0055] The swing driving member 40 is movably mounted on the body 10. When the swing block 30 moves to the first switching position or the second switching position along with the switching shaft 20 and the water inlet channel 11 is cut off from water, the swing driving member 40 can drive the swing block 30 to swing between the first swing position and the second swing position.

[0056] The hydraulic driving member 50 is movably mounted on the body 10 and driven by the pressure of the water inlet channel 11. The hydraulic driving member 50 cooperates with the swing block 30. There are first guide slopes 521, 31 and second guide slopes 522, 32 between the hydraulic driving member 50 and the swing block 30. When the swing block 30 is in the first swing position, the hydraulic driving member 50 can cooperate with the swing block 30 through the first guide slopes 521, 31 to drive the switch shaft 20 to move from the first switch position to the second switch position; when the swing block 30 is in the second swing position, the hydraulic driving member 50 can cooperate with the swing block 30 through the second guide slopes 522, 32 to drive the switch shaft 20 to move from the second switch position to the first switch position.

[0057] In this embodiment, the swing driving member 40 can give way to the swing block 30 in a direction perpendicular to the sliding direction of the switching shaft 20. The swing driving member 40 includes a first swing inclined surface 41 and a second swing inclined surface 42 arranged at intervals in the sliding direction of the switching shaft 20. When the swing block 30 moves with the switching shaft 20, the rotation axis of the swing block 30 moves between the first swing inclined surface 41 and the second swing inclined surface 42. At the same time, the swing block 30 drives the swing driving member 40 to give way to the swing block 30 in a direction perpendicular to the sliding direction of the switching shaft 20. When the switching shaft 20 is in the first switching position, the swing driving member 40 drives the swing block 30 to swing to the first swing position by resetting the first swing inclined surface 41; when the switching shaft 20 is in the second switching position, the swing driving member 40 drives the swing block 30 to swing to the second swing position by resetting the second swing inclined surface 42. By arranging the first swinging inclined surface 41 and the second swinging inclined surface 42 on the swing driving member 40, the first swinging inclined surface 41 and the second swinging inclined surface 42 are utilized to drive the swing block 30 to swing between two swinging positions, which is ingenious in design and reliable in function.

[0058] Preferably, in this embodiment, the swing driving member 40 includes an abutment sheet 43, the abutment sheet 43 is formed with a groove 431 by bending, and the inner walls of the groove 431 on both sides of the sliding direction of the switching shaft 20 respectively form a first swinging inclined surface 41 and a second swinging inclined surface 42, and the first swinging inclined surface 41 and the second swinging inclined surface 42 are inclined in opposite directions. Specifically, the first swinging inclined surface 41 is gradually inclined downward from the first switching position to the second switching position of the switching shaft 20, and the second swinging inclined surface 42 is gradually inclined upward from the first switching position to the second switching position of the switching shaft 20. Preferably, the inclination angles of the two are the same. The swing driving member 40 forms the first swinging inclined surface 41 and the second swinging inclined surface 42 by setting the groove 431, and the structure is simple.

[0059] After the water pressure in the hydraulic chamber 16 disappears (i.e., after the water inlet channel 11 is cut off), the swing driving member 40 starts to reset, and the swing driving member 40 can be reset by elastic force, magnetic force, gravity, etc. Specifically, in this embodiment, the abutment sheet 43 is elastically reset by its own elasticity. Alternatively, in other embodiments, the abutment sheet 43 can also be elastically reset by a spring (not shown); or, in other embodiments, the swing driving member 40 can also be reset by magnetism, for example, the swing driving member 40 also includes a magnetic member (not shown), and the abutment sheet 43 and the magnetic member are magnetically attracted or magnetically repelled. Alternatively, the swing driving member 40 can also be reset by gravity, and a counterweight block (not shown) can be provided to provide gravity for the swing driving member 40 to reset. The method of resetting the swing driving member 40 from the yielding state of yielding to the swing block 30 to the state of abutting with the swing block 30 can be selected as needed, and is not limited thereto.

[0060] In this embodiment, the first guide slope 521, 31 and the second guide slope 522, 32 are provided on both the hydraulic driving member 50 and the swing block 30, so that the transmission is smoother. Of course, in other embodiments, only the first guide slope 521, 31 may be provided on the hydraulic driving member 50 or the swing block 30, or only the second guide slope 522, 32 may be provided on the hydraulic driving member 50 or the swing block 30.

[0061] In this embodiment, the swing block 30 includes a first wedge-shaped portion 33, one side of the first wedge-shaped portion 33 forms a first guide slope 31, and the other side of the first wedge-shaped portion 33 forms a second guide slope 32. The hydraulic drive member 50 includes a second wedge-shaped portion 523, one side of the second wedge-shaped portion 523 forms a first guide slope 521, and the other side of the second wedge-shaped portion 523 forms a second guide slope 522. The first guide slope 31 on the first wedge-shaped portion 33 is guided and matched with the first guide slope 521 on the second wedge-shaped portion 523, and the second guide slope 32 on the first wedge-shaped portion 33 is guided and matched with the second guide slope 522 on the second wedge-shaped portion 523.

[0062] In this embodiment, the hydraulic driving member 50 includes a piston 51 and a pressure block 52. The piston 51 is slidably disposed in the hydraulic chamber 16. The pressure block 52 is rotatably disposed on the body 10 and is located outside the hydraulic chamber 16. A through hole 161 is provided on the hydraulic chamber 16. The piston 51 is in contact with the pressure block 52 through the through hole 161 for transmission cooperation. The pressure block 52 cooperates with the swing block 30.

[0063] In this embodiment, a hydraulic drive reset member 60 is further included. When the water inlet channel 11 is cut off from water, the hydraulic drive reset member 60 drives the hydraulic drive member 50 to reset. Preferably, in order to make the structure simpler and the installation more convenient, in this embodiment, the hydraulic drive reset member 60 and the swing drive member 40 are integrally formed to form a substantially "√"-shaped elastic member, that is, the "√"-shaped elastic member serves as both the hydraulic drive reset member 60 and the swing drive member 40, thereby reducing the number of parts.

[0064] In this embodiment, a switching chamber 17 is provided in the body 10, and a switching shaft 20 is slidably provided in the switching chamber 17, and a first valve port 14 and a second valve port 15 are spaced apart along the axial direction of the switching shaft 20. A first sealing portion 21 matching with the first valve port 14 and the second valve port 15 is provided at one end of the switching shaft 20. A through pivot hole 22 is radially provided on the switching shaft 20, and a pivot end of a swing block 30 matches with the pivot hole 22, and the swing block 30 swings around the pivot hole 22 along the axial direction of the switching shaft 20. A second sealing portion 23 is provided on the switching shaft 20 between the first sealing portion 21 and the pivot hole 22, and a sealing ring 231 is provided at the second sealing portion 23, and the switching shaft 20 is slidingly sealed with the inner wall of the switching chamber 17 through the sealing ring 231.

[0065] The working process of this embodiment is briefly described as follows:

[0066] See also Figure 6 and Figure 7 At this time, the swing block 30 is in the first swing position, and the switch shaft 20 is in the first switch position (the switch shaft 20 opens the first valve port 14 and closes the second valve port 15). The state at this time is taken as the initial state. At this time, the water inlet channel 11 is cut off, and there is no water pressure in the water pressure chamber 16 acting on the piston 51 of the hydraulic driving member 50. The pressure block 52 is separated from the swing block 30 under the action of the hydraulic driving member reset member 60 ("√"-shaped elastic member), and the first swing inclined surface 41 of the swing driving member 40 cooperates with the swing block 30 so that the swing block 30 is in the first swing position;

[0067] See also Figure 8 ,exist Figure 6 and Figure 7In the state, the water inlet channel 11 is opened, and the water flow of the water inlet channel 11 enters the water pressure chamber 16. The water pressure in the water pressure chamber 16 drives the piston 51 to move outward through the through hole 161, and the piston 51 drives the pressure block 52 to move toward the swing block 30. When the first guide slope 521 on the pressure block 52 cooperates with the first guide slope 31 on the swing block 30, the pressure block 52 starts to drive the switching shaft 20 to move from the first switching position to the second switching position (i.e. Figure 6 until it moves to the right Figure 8 The position shown, at this time, the switching shaft 20 is in the second switching position (the switching shaft 20 opens the second valve port 15 and closes the first valve port 14), and the swing block 30 moves to the position corresponding to the second swing inclined surface 42 along with the switching shaft 20, but the swing block 30 is pressed by the pressure block 52 and is still in the first swing position;

[0068] See also Fig. 9 and Fig.10 ,exist Figure 8 In the state, the water inlet channel 11 is closed, the water pressure in the water pressure chamber 16 disappears, and the hydraulic driving member reset member 60 (the "√"-shaped elastic member) drives the pressure block 52 to move away from the swing block 30, and the pressure block 52 no longer abuts the swing block 30, and at the same time drives the piston 51 to retreat into the water pressure chamber 16; at the same time, the swing driving member 40 (the "√"-shaped elastic member) is elastically reset, and since the swing block 30 is not pressed by the pressure block 52, the swing driving member 40 resets so that the second swing inclined surface 42 drives the swing block 30 to swing to the second swing position.

[0069] See also Fig.11 ,exist Fig. 9 and Fig.10 In the state, the water inlet channel 11 is opened again, and the water flow of the water inlet channel 11 enters the water pressure chamber 16. The water pressure in the water pressure chamber 16 drives the piston 51 to move outward through the through hole 161, and the piston 51 drives the pressure block 52 to move toward the swing block 30. When the second guide slope 522 on the pressure block 52 cooperates with the second guide slope 32 on the swing block 30, the pressure block 52 starts to drive the switching shaft 20 to move from the second switching position to the first switching position (i.e. Fig. 9 until you move to the left Fig.11 At this time, the switching shaft 20 returns to the first switching position (the switching shaft 20 opens the first valve port 14 and closes the second valve port 15), and the swing block 30 moves to a position corresponding to the first swing inclined surface 41 along with the switching shaft 20, but the swing block 30 is pressed by the pressure block 52 and is still in the second swing position;

[0070] exist Fig.11In the state of , the water inlet channel 11 is closed again, the water pressure in the water pressure chamber 16 disappears, and the hydraulic driving member reset member 60 ("√"-shaped elastic member) drives the pressure block 52 to move away from the swing block 30, and the pressure block 52 no longer abuts the swing block 30, and at the same time drives the piston 51 to retreat into the water pressure chamber 16; at the same time, the swing driving member 40 ("√"-shaped elastic member) is elastically reset, and since the swing block 30 is not pressed by the pressure block 52, the swing driving member 40 resets so that the first swing inclined surface 41 drives the swing block 30 to swing to the first swing position, and returns to Figure 6 and Figure 7 Status shown.

[0071] In this way, by alternately opening and closing the water inlet channel 11, the first valve port 14 and the second valve port 15 can be alternately opened and closed, so that the overhead shower head can alternately flow out different water outlet modes, for example, the first water outlet channel 12 flows out granular water, and the second water outlet channel 13 flows out shower water, etc.

[0072] The utility model uses a reciprocating hydraulic switching mechanism, and the reciprocating hydraulic switching mechanism can reciprocate under the water pressure of the water inlet channel of the main body so that the water inlet channel is selectively connected with the various water outlet channels of the main body. In this way, water channel switching can be achieved by controlling the water flow and water cutoff of the water inlet channel to control the water pressure of the water inlet channel, and the water flow and water cutoff of the water inlet channel can be controlled by operating the control valve located below the overhead shower head. It is easy to use and has a good experience.

[0073] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A hydraulic switching structure for an overhead shower, characterized in that: It comprises a body and a reciprocating hydraulic switching mechanism arranged in the body, the body having a water inlet channel and at least two water outlet channels, the reciprocating hydraulic switching mechanism being able to reciprocate under the water pressure of the water inlet channel so that the water inlet channel is selectively connected with each of the water outlet channels; The reciprocating hydraulic switching mechanism comprises: A switching shaft, disposed on the body and capable of sliding between a first switching position and a second switching position so that the water inlet channel is switched to connect with the water outlet channel; A swing block, mounted on the switching shaft and capable of swinging between a first swing position and a second swing position; a swing driving member, movably mounted on the body, and when the swing block moves to the first switching position or the second switching position along with the switching shaft, and when the water inlet channel is cut off, the swing driving member can drive the swing block to swing between the first swing position and the second swing position; A hydraulic driving member is movably mounted on the body and driven by the pressure of the water inlet channel, the hydraulic driving member cooperates with the swing block, and a first guide slope and a second guide slope are provided between the hydraulic driving member and the swing block. When the swing block is located at the first swing position, the hydraulic driving member can cooperate with the swing block through the first guide slope to thereby drive the switching shaft to move from the first switching position to the second switching position; when the swing block is located at the second swing position, the hydraulic driving member can cooperate with the swing block through the second guide slope to thereby drive the switching shaft to move from the second switching position to the first switching position.

2. A hydraulic switching structure for a top spray shower according to claim 1, characterized in that: The swing drive member can give way to the swing block in a direction perpendicular to the sliding direction of the switching shaft. The swing drive member includes a first swing inclined surface and a second swing inclined surface spaced apart in the sliding direction of the switching shaft. When the swing block moves with the switching shaft, the rotation axis of the swing block moves between the first swing inclined surface and the second swing inclined surface. At the same time, the swing block drives the swing drive member to give way to the swing block in a direction perpendicular to the sliding direction of the switching shaft. When the switching shaft is located at the first switching position, the swing drive member drives the swing block to swing to the first swing position by resetting the first swing inclined surface; when the switching shaft is located at the second switching position, the swing drive member drives the swing block to swing to the second swing position by resetting the second swing inclined surface.

3. A hydraulic switching structure for a top spray shower according to claim 2, characterized in that: The swing driving member includes an abutment plate, which is bent to form a groove, and the inner walls of the groove on both sides of the sliding direction of the switching shaft respectively form the first swing inclined surface and the second swing inclined surface, and the inclination directions of the first swing inclined surface and the second swing inclined surface are opposite.

4. A hydraulic switching structure for a top spray shower according to claim 3, characterized in that: The swing driving member is elastically reset, the contact piece is elastically reset by its own elasticity, or the contact piece is elastically reset by a spring; or, The swing driving member is reset by magnetism, and the swing driving member further comprises a magnetic member, and the abutment sheet and the magnetic member are magnetically attracted or magnetically repelled; or The swing drive is reset by gravity.

5. The hydraulic switching structure of the overhead shower head according to claim 1, characterized in that: The first guiding inclined surface is arranged on the hydraulic driving member and / or the swing block, and the second guiding inclined surface is arranged on the hydraulic driving member and / or the swing block.

6. A hydraulic switching structure for a top spray shower according to claim 5, characterized in that: The swing block includes a first wedge-shaped portion, one side of the first wedge-shaped portion forms the first guide slope, and the other side of the first wedge-shaped portion forms the second guide slope. The hydraulic drive component includes a second wedge-shaped portion, one side of the second wedge-shaped portion forms the first guide slope, and the other side of the second wedge-shaped portion forms the second guide slope.

7. The hydraulic switching structure of the overhead shower head according to claim 1, characterized in that: The hydraulic drive component includes a piston and a pressure block. The main body has a water pressure chamber connected to the water inlet channel. The piston is slidably arranged in the water pressure chamber. The pressure block is rotatably arranged on the main body and is located outside the water pressure chamber. A through hole is provided on the water pressure chamber. The piston is in abutment and transmission cooperation with the pressure block through the through hole. The pressure block cooperates with the swing block.

8. The hydraulic switching structure of the overhead shower head according to claim 1, characterized in that: It also includes a hydraulic drive member reset member, which drives the hydraulic drive member to reset when the water inlet channel is cut off.

9. A hydraulic switching structure for an overhead shower head according to claim 8, characterized in that: The hydraulic drive member reset member and the swing drive member are integrally formed to form a roughly "√"-shaped elastic member.

10. The hydraulic switching structure of the overhead shower head according to claim 1, characterized in that: The water outlet channel includes a first water outlet channel and a second water outlet channel. The main body is provided with a first valve port located between the water inlet channel and the first water outlet channel, and a second valve port located between the water inlet channel and the second water outlet channel. When in the first switching position, the switching shaft opens the first valve port and closes the second valve port. When in the second switching position, the switching shaft opens the second valve port and closes the first valve port.

11. A hydraulic switching structure for an overhead shower head according to claim 10, characterized in that: A switching cavity is provided in the body, and the switching shaft is slidably provided in the switching cavity. A first sealing portion cooperating with the first valve port and the second valve port is provided at one end of the switching shaft. A through pivot hole is radially opened on the switching shaft, and the pivot end of the swing block cooperates with the pivot hole. The swing block swings around the pivot hole along the axial direction of the switching shaft. A second sealing portion is provided on the switching shaft between the first sealing portion and the pivot hole, and a sealing ring is provided at the second sealing portion. The switching shaft is slidably and sealably cooperated with the inner wall of the switching cavity through the sealing ring.

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