阅读说明：本技术 多水路切换机构 (Multi-waterway switching mechanism ) 是由 林泓鑫 于 2016-03-24 设计创作，主要内容包括：本发明提供了多水路切换机构,属于淋浴设备技术领域。它解决了现有的花洒中先导结构的可靠性低以及结构复杂的问题。本多水路切换机构,包括主体,该主体内具有进水腔一以及相互独立的出水腔三和出水腔一,出水腔三和出水腔一能分别与出水口相连通,进水腔一与出水腔三之间具有进水腔三,该进水腔三与出水腔三的连通处设置有能使进水腔三和出水腔三相连通或阻断的控制组件,进水腔一能与上述进水腔三以及上述出水腔一分别连通,所述的主体内还设置有切换芯子一,该切换芯子一上具有位于上述进水腔一和进水腔三连通处的呈板状的受力板一以及位于上述进水腔一与出水腔一连通处的密封件一。本多水路切换机构具有结构简单和可靠性高的优点。(The invention provides a multi-water-path switching mechanism, and belongs to the technical field of shower equipment. The problems that the reliability of a pilot structure in the existing shower head is low and the structure is complex are solved. The multi-water-path switching mechanism comprises a main body, wherein a water inlet cavity I, a water outlet cavity III and a water outlet cavity I which are independent of each other are arranged in the main body, the water outlet cavity III and the water outlet cavity I can be communicated with a water outlet respectively, a water inlet cavity III is arranged between the water inlet cavity I and the water outlet cavity III, a control component which can enable the water inlet cavity III and the water outlet cavity three to be communicated or blocked is arranged at the communication position of the water inlet cavity III and the water outlet cavity III, the water inlet cavity I can be communicated with the water inlet cavity III and the water outlet cavity respectively, a switching core I is further arranged in the main body, and a plate-shaped stress plate I located at the communication position of the water inlet cavity I and the water inlet cavity III and a sealing piece I located at the communication position of the water inlet cavity I and the. This many waterway switching mechanism has simple structure and the high advantage of reliability.)

1. The switching mechanism of the multiple water paths comprises a main body (1) of a shell, wherein a first water inlet cavity (2), a third water inlet cavity (29), a first water outlet cavity (4) and a third water outlet cavity (3) which can be communicated are arranged in the main body (1), a first switching core (8) which can be used for switching on and off the first water inlet cavity (2) and the first water outlet cavity (4) is arranged in the main body (1), a control component which can enable the third water inlet cavity (29) and the third water outlet cavity (3) to be communicated or blocked is arranged at the communication position of the third water inlet cavity (29) and the third water outlet cavity (3), a first blocking shoulder (10a) is arranged in the main body (1), the first switching core (8) comprises a first connecting part (8a) penetrating through the first blocking shoulder (10a) and is characterized in that the first switching core (8) further comprises a first stress plate (8b) capable of driving the first switching core (8) to move horizontally, and the first connecting part (8a) and the first stress plate (8b) are of an integral type and a first stress plate The two parts are in clearance fit.

2. The multiple water path switching mechanism of claim 1, wherein the inner end and the outer end of the switching core I (8) are respectively positioned in the water inlet cavity I (2) and the water outlet cavity I (4), the stress plate I (8b) is connected with the inner end of the switching core I (8), the outer end of the switching core I (8) is connected with the sealing member I (11), and the sealing member I (11) can abut against the retaining shoulder I (10) to form a seal.

3. The switching mechanism of multiple water channels according to claim 2, characterized in that an elastic member one (9) is further disposed in the main body (1), and the switching core one (8) can drive the sealing member one (11) to abut against the first blocking shoulder one (10) and form a seal under the elastic force of the elastic member one (9).

4. The multiple water path switching mechanism of claim 2 or 3, wherein the first force bearing plate (8b) is annular or disc-shaped and is coaxially arranged with the first connecting part (8a), and the first sealing member (11) is fixedly connected to the outer end outer side wall of the first connecting part (8 a).

5. The multiple water path switching mechanism as claimed in claim 4, wherein the outer side wall of the outer end of the first connecting portion (8a) is provided with an annular groove around the axis of the first connecting portion (8a), and the first sealing member (11) is annular and disposed in the groove.

6. The multiple water path switching mechanism as claimed in claim 1, 2 or 3, wherein the control assembly comprises a pressure control chamber III (5) located between the water inlet chamber III (29) and the water outlet chamber III (3), a sealing gasket III (6) arranged at the port of the water inlet end of the water outlet chamber III (3), and a driving member III (7) capable of driving the sealing gasket III (6) to abut against or be away from the port of the water inlet end of the water outlet chamber III (3), the third sealing pad (6) is also provided with a third pressure relief hole (13a) which can communicate the third pressure control cavity (5) with the third water outlet cavity (3) and a third water inlet channel which can communicate the third water inlet cavity (29) with the third pressure control cavity (5), the cross sectional area of the third pressure relief hole (13a) is larger than that of the third water inlet channel, and the third driving piece (7) can block the third pressure relief hole (13 a).

7. The switching mechanism of multiple water paths according to claim 6, wherein a cylindrical pressure relief piece III (13) is arranged in the middle of the sealing gasket III (6) in a penetrating manner, the inner side wall of the sealing gasket III (6) is tightly abutted to the outer side wall of the pressure relief piece III (13), the inner side of the pressure relief piece III (13) is provided with the pressure relief hole III (13a), the pressure relief piece III (13) is fixedly connected with the main body (1), one end of the pressure relief piece III (13) penetrates through the sealing gasket III (6) and is located in the water outlet cavity III (3), and the end of the pressure relief piece III (13) is connected with a ring-shaped limiting head III (14) protruding out of the outer side wall of the pressure relief piece III (13).

8. The switching mechanism of multiple water paths according to claim 6, wherein a third water inlet hole (6a) capable of communicating the third water inlet cavity (29) and the third pressure control cavity (5) is formed through the third sealing gasket (6), the main body (1) is further provided with a third current limiting column (15) protruding and penetrating through the third water inlet hole (6a), and the third water inlet channel is formed between the outer side wall of the third current limiting column (15) and the side wall of the third water inlet hole (6 a).

9. The multiple water path switching mechanism according to claim 1, 2 or 3, wherein said main body (1) comprises a first outer shell (32) and a second outer shell (33) which are independent of each other, said third outlet chamber (3), said third inlet chamber (29) and said control unit are all disposed at the first outer shell (32), said first outlet chamber (4), said first inlet chamber (2) and said first switching core (8) are all disposed at the second outer shell (33), and said first inlet chamber (2) is connected with said third inlet chamber (29) through a water pipe (34).

Technical Field

The invention belongs to the technical field of shower equipment, relates to a shower head, and particularly relates to a multi-water-path switching mechanism.

Background

The shower head is also called as a shower head, and is a common shower device, comprising a portable shower head, a shower head top and the like, while the multifunctional shower head refers to a shower head with multiple water outlet forms, wherein each water outlet form has a function. Specifically, the structure of the shower head generally comprises a housing having a water inlet and a water outlet, wherein the water outlet of the housing is fixedly connected with a water outlet panel, a plurality of water outlet holes are uniformly distributed on the water outlet panel, water is fed from the water inlet of the shower head, and then water is discharged from the water outlet holes on the water outlet panel. In order to realize different water outlet functions of the shower head, the water outlet holes on the water outlet panel of the existing shower head are divided into a plurality of groups, and each group of a plurality of water outlet holes are used for switching a communication water channel in the shower head through a switching handle on one side of a manually operated shower head when a certain water outlet function is needed, so that a corresponding group of water outlet holes are communicated with a water inlet and realize water outlet, and at the moment, the water outlet holes of other groups do not discharge water. When the water outlet function needs to be switched, the switching handle is pulled again to be switched to the next gear. However, the switching mode of the shower path has the problems of low automation degree and inconvenient operation.

For this reason, the applicant has designed an intelligent gear-shifting top shower and applied for chinese patent [ its application number is: 201510624424. X; the publication number is as follows: 105127022A ], the top shower has independent water outlet cavities with the same number as the water outlet holes in the shell, the water outlet cavities are communicated with a plurality of water outlet holes in a one-to-one correspondence manner, a pilot structure with a water inlet end and a plurality of water outlet ends, a driving piece capable of driving the pilot structure to act, an inductor and a power supply unit capable of supplying power to the driving piece are fixed in the shell, and the driving piece can drive the pilot structure to switch and gate one or more of the water outlet ends according to the sensing signal of the inductor. The pilot structure comprises a pressure control cavity, a spring, a movable sealing gasket and the like, and is a structure for controlling a larger quantity by using a smaller quantity. The top shower head receives a trigger signal of a user through the sensor, and the driving piece drives the pilot structure to switch and gate different water outlet ends and communicate the corresponding water outlet cavity and the water outlet hole according to the trigger signal, so that different water outlet functions are realized. The whole switching process is automatically completed, the use is convenient, and the energy consumption in the automatic control process is greatly reduced through the arrangement of the pilot structure.

The above-mentioned pilot structure, although reducing energy consumption, still has some disadvantages: if this top gondola water faucet's embodiment three in technical scheme, it all sets up the pressure control chamber in two play water cavity departments, sealed pad and spring isotructure, the switching intercommunication to two play water cavities is realized with being cylindrical shutoff piece to an electro-magnet of rethread, overall structure spare part is more, the structure is comparatively complicated, and be linked together between two pressure control chambers, only come to keep apart two pressure control chambers through mobilizable shutoff piece and block, the required precision to each spare part of production equipment is higher, the higher and low reliability of manufacturing cost.

Disclosure of Invention

The invention aims to provide a multi-waterway switching mechanism with simple structure and high reliability aiming at the problems in the prior art.

The purpose of the invention can be realized by the following technical scheme:

a multi-water-path switching mechanism comprises a main body with a water inlet and a plurality of water outlets, wherein a water inlet cavity I communicated with the water inlet, a water outlet cavity III and a water outlet cavity I which are independent from each other are arranged in the main body, the water outlet cavity III and the water outlet cavity I can be respectively communicated with the corresponding water outlets, a water inlet cavity III is arranged between the water inlet cavity I and the water outlet cavity III, a control component which can enable the water inlet cavity III and the water outlet cavity to be communicated or blocked is arranged at the communication position of the water inlet cavity III and the water outlet cavity III, the water inlet cavity I can be respectively communicated with the water inlet cavity III and the water outlet cavity I, a switching core I is further arranged in the main body, and is provided with a plate-shaped stress plate I positioned at the communication position of the water inlet cavity I and the water inlet cavity III and a sealing piece I positioned at the communication position of the water inlet cavity I and the water outlet cavity I, the first switching core can be communicated with the first water outlet cavity under the action of water pressure in the first water inlet cavity when the first water outlet cavity and the other water outlet cavities which are communicated with the first water inlet cavity are blocked.

When the multi-water-path switching mechanism is used, the water inlet and the water outlet on the main body are respectively communicated with the water inlet of the shower head shell and the corresponding water outlet hole. When water is required to be discharged from the third water outlet cavity, the control component is controlled to act through the power-on and power-off control, the third water outlet cavity is communicated with the three phases of the water inlet cavity, water flows from the first water inlet cavity to the third water outlet cavity through the third water inlet cavity and is discharged from the water outlet communicated with the three phases of the water outlet cavity, and the water discharging function of the third water outlet cavity is achieved. At the moment, water in the water inlet cavity I flows out in the three directions of the water outlet cavity, a water pressure difference is formed between the water inlet cavity I and the water inlet cavity III, the first stress plate of the switching core I drives the first sealing element to block the first water inlet cavity and the first water outlet cavity under the action of water pressure, and water cannot flow out of the first water outlet cavity; on the contrary, when water needs to be discharged from the first water outlet cavity, the control assembly acts to block the third water inlet cavity and the third water outlet cavity, and the third water outlet cavity cannot discharge water. The multi-waterway switching mechanism can realize the work that one control assembly controls two waterways to switch water through the structural cooperation of one control assembly and one switching core I, thereby not only reducing the energy consumption, but also reducing structural parts and simplifying the structure. Meanwhile, the water outlet cavity III and the water outlet cavity I are mutually independent, the condition that the two cavities are communicated does not exist, the requirement on the processing precision influencing the sealing property is lowered, the reliability is good, and the production cost is further lowered.

In the multi-waterway switching mechanism, a first annular blocking shoulder is arranged at the communication position of the first water inlet cavity and the first water outlet cavity in the main body in a protruding mode, the first switching core is arranged in the first blocking shoulder in a penetrating mode, the inner end and the outer end of the first switching core are respectively arranged in the first water inlet cavity and the first water outlet cavity, the stress plate is connected to the inner end of the first switching core and protrudes out of the outer side wall of the inner end of the first switching core, and the sealing element is connected to the outer end of the first switching core and can abut against the first blocking shoulder to form sealing. When water is discharged from the first water outlet cavity and the second water outlet cavity, a water pressure difference is formed between the first water inlet cavity and the second water inlet cavity, and a larger water pressure in the first water inlet cavity exerts an acting force on the first stress plate of the first switching core to drive the switching core to move towards the inner end direction, so that the first sealing element on the outer end of the first switching core is driven to abut against the first retaining shoulder to form sealing, and the first water inlet cavity and the first water outlet cavity are blocked; on the contrary, if the water in the water outlet cavity III is not discharged, the water pressure in the water inlet cavity I is higher, the switching core is pushed to move towards the outer end direction, and the sealing element I is further driven to be far away from the first retaining shoulder, so that the water inlet cavity I is communicated with the water outlet cavity I. The whole working process of the first switching core is driven by water pressure, other driving structures are not needed, the structure is simple, and energy consumption is reduced.

In the multi-waterway switching mechanism, the main body is also internally provided with a first elastic part, and the first switching core can drive the first sealing part to abut against the first blocking shoulder under the action of the elastic force of the first elastic part to form sealing. The first elastic piece is added to assist the action of the first switching core, so that the action of the first switching core is more stable, and the use reliability is improved.

In the multi-waterway switching mechanism, the first switching core further comprises a first rod-shaped or barrel-shaped connecting part penetrating through the first blocking shoulder, the first stress plate is annular or disc-shaped and is coaxially arranged at the inner end of the first connecting part, and the first sealing part is fixedly connected to the outer side wall of the outer end of the first connecting part. The barrel-shaped structure is a barrel-shaped structure with one closed end, the first connecting part penetrates through the first blocking shoulder to provide guidance for the first switching core to communicate or block the first water inlet cavity and the first water outlet cavity, the first switching core is prevented from deviating during movement, and sealing reliability is guaranteed.

In the multi-waterway switching mechanism, an annular groove is formed in the outer side wall of the outer end of the first connecting part around the axis of the first connecting part, and the first sealing part is annular and is arranged in the groove. The first sealing piece can be of an O-shaped ring or an annular gasket and the like, and is arranged in the annular groove, so that the situation that the first sealing piece is loosened due to water flow impact after long-term use can be better prevented compared with other fixing modes, and the use reliability of the multi-water-path switching mechanism is further improved. When necessary, a protruding annular blocking part I is arranged on the outer side wall of the connecting part I, which is close to one side of the end part of the outer end of the connecting part I, on the groove, so that the annular sealing part I arranged in the groove is abutted against the blocking part I, and the reliability of the sealing part I is further enhanced.

In foretell many water routes switching mechanism, the control assembly including be located three of above-mentioned intake antrums and go out the pressure-controlled chamber between the water cavity three, set up sealed pad three of the port department of the water inlet end of going out the water cavity three and can drive sealed pad three to lean on or keep away from the driving piece three of the port of the water inlet end of going out the water cavity three, sealed pad three on still set up can communicate pressure-controlled chamber three with go out the pressure release hole three of water cavity three and can communicate intake antrum three with pressure-controlled chamber three and the water inlet passageway three of three, the cross-sectional area of pressure release hole three be greater than the cross-sectional area of above-mentioned intake passageway three, above-mentioned driving piece three can the shutoff pressure. Because the third pressure control cavity and the third water outlet cavity and the third pressure control cavity and the third water inlet cavity are separated by the third sealing gasket, when the third driving piece acts to block the third pressure relief hole when the third driving piece is powered on or powered off, water in the third water inlet cavity enters the third pressure control cavity through the third water inlet channel, the third pressure control cavity and the third water inlet cavity keep water pressure balance, the third sealing gasket abuts against and seals the port of the water inlet end of the third water outlet cavity, and the third water outlet cavity does not discharge water; when the driving piece three acts to enable the pressure relief hole three to be communicated, water in the pressure control cavity three flows out through the pressure relief hole three, the maximum cross sectional area of the water inlet channel three is smaller than the minimum cross sectional area of the pressure relief hole three, the speed of water replenishing in the pressure control cavity three is lower than the water outlet speed, the water pressure of the pressure control cavity three gradually decreases, the sealing gasket three is jacked up under the action of the water pressure of the water inlet cavity three to leave the water inlet end port of the water outlet cavity three, the water inlet cavity three is communicated with the water outlet cavity three-phase, and the water outlet cavity three flows out. Here, the cross-sectional area of the water inlet end port of the water outlet cavity III is larger than that of the pressure relief hole III. Of course, the control assembly may also be just one electromagnet.

In the multi-waterway switching mechanism, the middle part of the third sealing gasket is provided with a third cylindrical pressure relief piece in a penetrating manner, the inner side wall of the third sealing gasket is tightly abutted against the outer side wall of the third pressure relief piece, the inner side of the third pressure relief piece is provided with the third pressure relief hole, the third pressure relief piece is fixedly connected with the main body, one end of the third pressure relief piece penetrates through the third sealing gasket and is positioned in the third water outlet cavity, and the end of the third pressure relief piece is connected with a third annular limiting head protruding out of the outer side wall of the third pressure relief piece. The third limiting head can prevent the third sealing gasket sleeved outside the third pressure relief piece from being separated from the end part of the third pressure relief piece, and the normal work of the third sealing gasket is ensured.

In the multi-waterway switching mechanism, a third water inlet hole which can be communicated with a third water inlet cavity and a third pressure control cavity is formed in the third sealing gasket in a penetrating mode, a third flow limiting column which protrudes out of and penetrates through the third water inlet hole is further arranged on the main body, and the third water inlet channel is formed between the outer side wall of the third flow limiting column and the three side walls of the water inlet hole. Because of sealed third, the pressure-controlled chamber is three, elastic component isotructure all sets up in the shell of gondola water faucet, based on the volume consideration of gondola water faucet, sealed third volume of filling up is also less, and sealed third adoption rubber materials makes, then need set up the hole that is littleer than pressure release hole on sealed third when adding man-hour, the inlet opening three that the machining precision required height and undersize probably contracts and dies because of the material reason of sealed third self, and form the mode greatly reduced machining precision requirement of inlet channel three through three wearing to locate in inlet opening three of current-limiting column, reduction in production cost. Meanwhile, the third sealing gasket made of rubber materials is likely to deform or age after long-term use, if only one hole is formed in the third sealing gasket to serve as the third water inlet channel, the hole is likely to be enlarged due to long-term bearing of high water pressure, so that normal work of the third pressure control cavity is affected, the third flow limiting column is arranged in a penetrating mode, the situation can be avoided to a great extent, and the use reliability is improved.

In the multi-waterway switching mechanism, a fifth water outlet cavity is further arranged in the main body, the fifth water outlet cavity is communicated with the corresponding water outlet, a fifth water inlet cavity is arranged between the fifth water outlet cavity and the first water inlet cavity, the first water inlet cavity is communicated with the fifth water inlet cavity, and a control component capable of communicating or blocking the fifth water inlet cavity and the fifth water outlet cavity is arranged at the communication position of the fifth water inlet cavity and the fifth water outlet cavity. The structure of the fifth water outlet cavity is the same as that of the third water outlet cavity, the first water inlet cavity can also be communicated to the fifth water inlet cavity, the control assembly comprises a fifth pressure control cavity, a fifth sealing gasket and a fifth driving piece, the fifth sealing gasket is controlled to seal or keep away from the water inlet end of the fifth water outlet cavity through the fifth driving piece, and water cut-off or water outlet of the fifth water outlet cavity is achieved. When water is discharged from the third water outlet cavity or the fifth water outlet cavity, water is not discharged from the first water outlet cavity, and when water is not discharged from the third water outlet cavity and the fifth water outlet cavity, water is discharged from the first water outlet cavity, namely, the switching control of the three water paths is realized by the driving piece III and the driving piece V. Certainly, the same water outlet cavity and the corresponding structure can be added again according to the requirement, and the water inlet cavity is communicated to the water outlet cavity together, so that the switching control of more water channels is realized. In the structure formed in this way, each pressure control cavity and each water outlet cavity are independent from each other, so that mutual influence cannot be caused, the requirement on machining precision is low, the production cost is reduced, and the use reliability is improved.

In the multi-waterway switching mechanism, the main body is also provided with a water inlet cavity II, a water outlet cavity IV and a water outlet cavity II which are independent of each other, the water outlet end of the water outlet cavity III or the water outlet cavity I is communicated with the water inlet cavity II, the water outlet cavity IV and the water outlet cavity II can be respectively communicated with corresponding water outlets, the water inlet cavity IV is arranged between the water inlet cavity II and the water outlet cavity IV, the water inlet cavity II is communicated with the water inlet cavity IV, a control component is arranged at the communication position of the water inlet cavity IV and the water outlet cavity IV, and a switching core II is further arranged at the communication position of the water inlet cavity II and the water outlet cavity II. The structures of the fourth water outlet cavity and the second water outlet cavity are respectively corresponding to the structures of the third water outlet cavity and the first water outlet cavity, and the water outlet end of one of the two water outlet cavities of the third water outlet cavity and the first water outlet cavity is used as the water inlet of the second water inlet cavity, so that the other structure for realizing the switching of the three water paths through the two driving pieces is obtained. In the same way, the same water outlet cavity and the corresponding structure can be further added according to the requirement, so that the switchable structure of more water paths is obtained.

In the multi-waterway switching mechanism, the main body comprises a first shell and a second shell which are mutually independent, the third water outlet cavity, the third water inlet cavity and the control assembly are all arranged at the first shell, the first water outlet cavity, the first water inlet cavity and the first switching core are all arranged at the second shell, and the first water inlet cavity is communicated with the three phases of the water inlet cavities through a water through pipe. The main part includes two shells of split type setting, sets up two play water cavities respectively in two shells the water route of rethread water service pipe with two shells corresponds the intercommunication for this many water route switching mechanism can carry out the adaptability adjustment according to the demand of installation space or safe position, has made things convenient for the installation.

In the above multi-waterway switching mechanism, the driving member three is an electromagnet.

In the above multi-waterway switching mechanism, the driving member is an electromagnet. The third driving part and the fifth driving part can also adopt a piezoelectric element and the like to realize mechanical action by switching on and off.

Compared with the prior art, this many water route switching mechanism uses the switching that is used for realizing two water routes of a driving piece control or the switching of N driving piece control N +1 water routes through the cooperation use of pressing accuse chamber, sealed pad, elastic component isotructure and a switching core, and the hydraulic effect has been fully utilized to the control process, has reduced the energy consumption of water route switching control, and has simplified the structure greatly, has reduced the machining precision requirement of each spare part in the gondola water faucet, has improved the reliability of product use.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the multiple water passage switching mechanism.

Fig. 2 is a schematic cross-sectional view of a first embodiment of the multiple water passage switching mechanism.

Fig. 3 is a schematic structural diagram of a second embodiment of the multiple water passage switching mechanism.

Fig. 4 is a schematic cross-sectional view of a second embodiment of the multiple water passage switching mechanism.

Fig. 5 is a schematic structural diagram of a third embodiment of the multiple water passage switching mechanism.

Fig. 6 is a schematic sectional view of a third embodiment of the multiple water passage switching mechanism.

Fig. 7 is a schematic sectional view of a fourth embodiment of the multiple water passage switching mechanism.

In the figure, 1, main body; 1a, a water inlet; 1b, a water outlet; 2. a first water inlet cavity; 2a, a water passing port I; 2b, a water passing hole II; 3. a water outlet cavity III; 4. a first water outlet cavity; 5. a third pressure control cavity; 6. a third sealing gasket; 6a, a water inlet hole III; 7. a driving member III; 8. switching a first core; 8a, a first connecting part; 8b, a first stress plate; 8c, a concave cavity; 9. a first elastic part; 10. a first blocking shoulder; 11. a first sealing element; 12. an elastic member III; 13. a third pressure relief piece; 13a and a third pressure relief hole; 14. a limiting head III; 15. a third current limiting column; 16. a fifth water outlet cavity; 17. a pressure control cavity V; 18. an elastic piece V; 19. a fifth sealing gasket; 20. a driving member V; 21. a second water inlet cavity; 22. a water outlet cavity IV; 23. a water outlet cavity II; 24. a pressure control cavity IV; 25. a fourth sealing gasket; 26. driving part IV; 27. switching a core II; 28. a second elastic piece; 29. a third water inlet cavity; 30. a fifth water inlet cavity; 31. a fourth water inlet cavity; 32. a first shell; 33. a second shell; 34. a water pipe.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.