阅读说明：本技术 一种流道切换装置、水机以及生产线 (Runner switching device, water machine and production line ) 是由 张远献 李科 于 2021-08-24 设计创作，主要内容包括：本申请实施例涉及一种流道切换装置、水机以及生产线,流道切换装置包括壳体和活塞。壳体设置收容腔、第一通孔、第二通孔、第三通孔和进流口；活塞与壳体的内壁连接,活塞的可相对于壳体运动；活塞设置第一流道和第二流道；活塞位于第一位置时,第一流道的入口与第一通孔对接,第一流道的出口与第二通孔对接；在进流口通入第一流体,然后进入收容腔,再推动活塞运动至第二位置,第二流道的入口与第一通孔对接,第二流道的出口与第三通孔对接。流道切换装置提供了第一流道和第二流道以供使用。在流道切换装置中通入第一流体,则可推动活塞运动至第二位置,从而通过第一流体使得第一流道的使用状态切换至第二流道,不需要手动进行切换,非常方便。(The embodiment of the application relates to a flow channel switching device, a water machine and a production line. The shell is provided with an accommodating cavity, a first through hole, a second through hole, a third through hole and a flow inlet; the piston is connected with the inner wall of the shell and can move relative to the shell; the piston is provided with a first flow passage and a second flow passage; when the piston is located at the first position, the inlet of the first flow passage is in butt joint with the first through hole, and the outlet of the first flow passage is in butt joint with the second through hole; and a first fluid is introduced into the flow inlet, then enters the containing cavity, and then pushes the piston to move to a second position, the inlet of the second flow passage is in butt joint with the first through hole, and the outlet of the second flow passage is in butt joint with the third through hole. The flow passage switching device provides a first flow passage and a second flow passage for use. The first fluid is introduced into the flow channel switching device, so that the piston can be pushed to move to the second position, the use state of the first flow channel is switched to the second flow channel through the first fluid, manual switching is not needed, and the device is very convenient.)

1. A flow channel switching device is characterized by comprising a shell and a piston;

the shell is provided with an accommodating cavity, a first through hole, a second through hole, a third through hole and a flow inlet, wherein the first through hole, the second through hole, the third through hole and the flow inlet are communicated with the accommodating cavity;

the piston is arranged in the accommodating cavity, one end of the piston is connected with the inner wall of the shell, and the other end of the piston can move relative to the shell;

the piston is provided with a first flow passage and a second flow passage;

when the piston is located at a first position, the inlet of the first flow passage is in butt joint with the first through hole, and the outlet of the first flow passage is in butt joint with the second through hole;

and introducing a first fluid into the flow inlet, wherein the first fluid enters the containing cavity, the first fluid can push the piston to move to a second position, the inlet of the second flow passage is in butt joint with the first through hole, and the outlet of the second flow passage is in butt joint with the third through hole.

2. The flow channel switching device according to claim 1, wherein the housing further comprises an outlet communicating with the receiving cavity, and the outlet is used for the first fluid to flow out.

3. The flow channel switching device according to claim 1, further comprising a stopper located in the accommodating cavity, wherein the stopper is connected to an inner wall of the housing, and when the piston moves to the second position, the stopper abuts against the other end of the piston.

4. The flow channel switching device according to claim 1,

the piston comprises a piston rod and an elastic piece;

one end of the elastic piece is connected with the inner wall of the shell, the other end of the elastic piece is connected with one end of the piston rod, and the other end of the piston rod can move relative to the shell;

the first flow passage and the second flow passage are provided in the piston rod.

5. The flow channel switching device according to claim 4, wherein the inlet and one end of the elastic member are disposed at two opposite ends of the housing.

6. The flow switching device of claim 4 further comprising a seal disposed around said piston rod.

7. The flow channel switching device according to any one of claims 1 to 6, wherein the housing comprises a body and a cover plate, the cover plate is detachably connected to the body, the receiving cavity is located in the body, and one end of the piston is connected to the cover plate.

8. The flow channel switching device according to any one of claims 1 to 6,

the flow channel switching device also comprises a first sealing ring, a second sealing ring, a third sealing ring and a fourth sealing ring which are arranged on the piston;

the first sealing ring is positioned at the inlet of the first flow passage and is used for sealing the first flow passage and the shell;

the second sealing ring is positioned at the outlet of the first flow passage and is used for sealing the first flow passage and the shell;

the third sealing ring is positioned at the inlet of the second flow passage and is used for sealing the second flow passage and the shell;

the fourth sealing ring is positioned at the outlet of the second flow passage and is used for sealing the second flow passage and the shell.

9. A water machine comprising a water tank, a gas cylinder, a mixing system, a controller and a flow path switching device as claimed in any one of claims 2 to 8;

the water tank is communicated with the first through hole;

when the piston is located at the first position, the water tank is communicated with the second through hole;

the gas cylinder is communicated with the flow inlet;

the mixing system is respectively communicated with the third through hole and the outflow port, and is provided with a water outlet;

when gas in the gas cylinder is introduced into the inlet, the gas flows through the accommodating cavity, the gas pushes the piston to move to the second position, the inlet of the second flow passage is in butt joint with the first through hole, the outlet of the second flow passage is in butt joint with the third through hole, water in the water tank enters the mixing system from the first through hole, the second flow passage and the third through hole, the gas in the gas cylinder enters the mixing system from the inlet, the accommodating cavity and the outlet, and the water and the gas mixed in the mixing system can flow out from the outlet;

the controller is respectively connected with the water tank and the gas cylinder, when the piston is located at the first position, the controller is used for controlling water in the water tank to flow through the first through hole, and the controller is used for controlling the gas cylinder to flow into the accommodating cavity from the flow inlet after the water in the water tank flows through the first through hole and the flow is preset.

10. A production line comprising a first container, a second container, production equipment and a flow path switching device according to any one of claims 2 to 8;

the production equipment is communicated with the first through hole;

the first container is used for bearing a first flowable material, the first container is communicated with the flow inlet, the flow outlet is communicated with the third through hole, when the first flowable material is introduced into the flow inlet, the first flowable material pushes the piston to move to a second position, and the first flowable material in the first container is supplied to the production equipment from the flow inlet, the accommodating cavity, the flow outlet, the third through hole, the second flow channel and the first through hole;

the second container is used for bearing a second flowing object, and the second container is communicated with the second through hole, so that when the piston is located at the first position, the second flowing object in the second container is supplied to the production equipment from the second through hole, the first flow passage and the first through hole.

Technical Field

The embodiment of the application relates to the technical field of flow channel switching.

Background

The bubble water is made by pressing edible carbon dioxide gas into water by a water machine by using instant strong pressure. The bubble water is pure, has fresh taste and fine bubbles, and can form various fruit-flavored beverages, which are the most fiery health beverages and are vigorously pursued by young people.

In the process of implementing the present application, the applicant of the present application finds that: at present, when bubble water is produced, the water temperature is generally required to be below 10 ℃, and the best temperature is 4 ℃. The water machine in the prior art has only one flow channel between the water tank and the mixing system, namely no flow channel switching device, and when the temperature of a first cup of water flowing out of the water tank of the water machine is high, the taste of bubble water made of the first cup of water is poor. Or, the first flow channel in the flow channel switching device in the water machine in the prior art is used for the outflow of the first cup of water, and the second flow channel is used for the outflow of the subsequent water of the first cup of water, however, the switching from the first flow channel to the second flow channel is performed manually, which is inconvenient.

Disclosure of Invention

In view of the above problems, embodiments of the present application provide a flow channel switching device, a water machine, and a production line, which overcome or at least partially solve the above problems.

According to an aspect of an embodiment of the present application, there is provided a flow passage switching device including a housing and a piston; the shell is provided with an accommodating cavity, a first through hole, a second through hole, a third through hole and a flow inlet, wherein the first through hole, the second through hole, the third through hole and the flow inlet are communicated with the accommodating cavity; the piston is arranged in the accommodating cavity, one end of the piston is connected with the inner wall of the shell, and the other end of the piston can move relative to the shell; the piston is provided with a first flow passage and a second flow passage; when the piston is located at a first position, the inlet of the first flow passage is in butt joint with the first through hole, and the outlet of the first flow passage is in butt joint with the second through hole; and introducing a first fluid into the flow inlet, wherein the first fluid enters the containing cavity, the first fluid can push the piston to move to a second position, the inlet of the second flow passage is in butt joint with the first through hole, and the outlet of the second flow passage is in butt joint with the third through hole.

In an optional mode, the housing is further provided with an outflow port communicated with the accommodating cavity, and the outflow port is used for the outflow of the first fluid.

In an optional mode, the flow channel switching device further includes a limiting member, the limiting member is located in the accommodating cavity, the limiting member is connected to the inner wall of the housing, and when the piston moves to the second position, the limiting member abuts against the other end of the piston.

In an alternative form, the piston includes a piston rod and a resilient member; one end of the elastic piece is connected with the inner wall of the shell, the other end of the elastic piece is connected with one end of the piston rod, and the other end of the piston rod can move relative to the shell; the first flow passage and the second flow passage are provided in the piston rod.

In an alternative mode, the inlet and one end of the elastic element are arranged at two opposite ends of the shell.

In an optional manner, the flow channel switching device further includes a sealing member, and the sealing member is annularly disposed on the piston rod.

In an optional mode, the housing includes a body and a cover plate, the cover plate is detachably connected to the body, the accommodating cavity is located in the body, and one end of the piston is connected to the cover plate.

In an optional manner, the flow channel switching device further includes a first sealing ring, a second sealing ring, a third sealing ring and a fourth sealing ring disposed on the piston; the first sealing ring is positioned at the inlet of the first flow passage and is used for sealing the first flow passage and the shell; the second sealing ring is positioned at the outlet of the first flow passage and is used for sealing the first flow passage and the shell; the third sealing ring is positioned at the inlet of the second flow passage and is used for sealing the second flow passage and the shell; the fourth sealing ring is positioned at the outlet of the second flow passage and is used for sealing the second flow passage and the shell.

According to an aspect of the embodiments of the present application, there is provided a water machine, including a water tank, a gas cylinder, a mixing system, a controller and the above-mentioned flow channel switching device; the water tank is communicated with the first through hole; when the piston is located at the first position, the water tank is communicated with the second through hole; the gas cylinder is communicated with the flow inlet; the mixing system is respectively communicated with the third through hole and the outflow port, and is provided with a water outlet; when the gas in the gas cylinder is introduced into the inlet, the gas flows through the containing cavity, the gas pushes the piston to move to the second position, the inlet of the second flow channel is in butt joint with the first through hole, the outlet of the second flow channel is in butt joint with the third through hole, water in the water tank enters the mixing system from the first through hole, the second flow channel and the third through hole, the gas in the gas cylinder enters the mixing system from the inlet, the containing cavity and the outlet, and the water and the gas mixed in the mixing system can flow out from the water outlet. The controller is respectively connected with the water tank and the gas cylinder, when the piston is located at the first position, the controller is used for controlling water in the water tank to flow through the first through hole, and the controller is used for controlling the gas cylinder to flow into the accommodating cavity from the flow inlet after the water in the water tank flows through the first through hole and the flow is preset.

According to an aspect of the embodiments of the present application, there is provided a production line, including a first container, a second container, a production apparatus, and the above-mentioned flow channel switching device; the production equipment is communicated with the first through hole; the first container is used for bearing a first flowable material, the first container is communicated with the flow inlet, the flow outlet is communicated with the third through hole, when the first flowable material is introduced into the flow inlet, the first flowable material pushes the piston to move to a second position, and the first flowable material in the first container is supplied to the production equipment from the flow inlet, the accommodating cavity, the flow outlet, the third through hole, the second flow channel and the first through hole; the second container is used for bearing a second flowing object, and the second container is communicated with the second through hole, so that when the piston is located at the first position, the second flowing object in the second container is supplied to the production equipment from the second through hole, the first flow passage and the first through hole.

The beneficial effects of this application include, provide a runner auto-change over device, runner auto-change over device includes casing and piston. The shell is provided with an accommodating cavity, a first through hole, a second through hole, a third through hole and a flow inlet, wherein the first through hole, the second through hole, the third through hole and the flow inlet are communicated with the accommodating cavity; the piston is arranged in the accommodating cavity, one end of the piston is connected with the inner wall of the shell, and the other end of the piston can move relative to the shell; the piston is provided with a first flow passage and a second flow passage; when the piston is located at a first position, the inlet of the first flow passage is in butt joint with the first through hole, and the outlet of the first flow passage is in butt joint with the second through hole; and introducing a first fluid into the flow inlet, wherein the first fluid enters the containing cavity, the first fluid can push the piston to move to a second position, the inlet of the second flow passage is in butt joint with the first through hole, and the outlet of the second flow passage is in butt joint with the third through hole. The flow passage switching device provides a first flow passage and a second flow passage for use. In the flow channel switching device, a first fluid is introduced through a flow inlet of the shell, and then the first fluid can push the piston to move to the second position, so that the use state of the first flow channel is switched to the use state of the second flow channel when the piston is located at the second position through the first fluid, the flow channel does not need to be manually switched, and the flow channel switching device is very convenient. When the flow channel switching device is applied to the water machine, when the piston is located at the first position, the first cup of water flowing out of the water tank can be discarded or flows into the water tank for circulation, and then the flow channel is switched to the second flow channel through the first fluid, so that the temperature of the water after the first cup of water is lower than that of the first cup of water, and the bubble water made of the water after the first cup of water has good taste.

The beneficial effects of this application include, provide a water machine, water machine includes water tank, gas cylinder, hybrid system, controller and above-mentioned runner auto-change over device. The water tank is communicated with the first through hole; when the piston is located at the first position, the water tank is communicated with the second through hole; the gas cylinder is communicated with the flow inlet; the mixing system is respectively communicated with the third through hole and the outflow port, and is provided with a water outlet; when the gas in the gas cylinder is introduced into the inlet, the gas flows through the containing cavity, the gas pushes the piston to move to the second position, the inlet of the second flow channel is in butt joint with the first through hole, the outlet of the second flow channel is in butt joint with the third through hole, water in the water tank enters the mixing system from the first through hole, the second flow channel and the third through hole, the gas in the gas cylinder enters the mixing system from the inlet, the containing cavity and the outlet, and the water and the gas mixed in the mixing system can flow out from the water outlet. The controller is respectively connected with the water tank and the gas cylinder, when the piston is located at the first position, the controller is used for controlling water in the water tank to flow through the first through hole, and the controller is used for controlling the gas cylinder to flow into the accommodating cavity from the flow inlet after the water in the water tank flows through the first through hole and the flow is preset. Through the water machine, can be with the water tank in advance with first through-hole and first flow channel intercommunication to can make the first cup of water in the water tank circulate to the water tank through first through-hole and first flow channel earlier, then make the piston move to the second position under the effect of the gas in the gas cylinder, thereby cut off the intercommunication of water tank and first flow channel, make water tank and second flow channel intercommunication, and then the subsequent water of first cup of water gets into the hybrid system in the water tank, the gas in the gas cylinder gets into the hybrid system through the outfall, finally forms bubble water. The formed bubble water uses the water subsequent to the first cup of water, and the temperature of the water subsequent to the first cup of water is lower than that of the water subsequent to the first cup of water, so that the formed bubble water has good taste. In addition, in this water machine, gas in the gas cylinder not only can be used to participate in the preparation bubble water, still can promote the piston motion to the second position in accepting the chamber of casing, and gas in the gas cylinder can make the piston motion to the water tank and carry water to the hybrid system through first through-hole, second runner and third through-hole promptly, and the water machine structure of this application is succinct. In other words, the gas in the gas cylinder in the application not only has single gas for generating bubble water, but also can assist in reducing the temperature of the water for making the bubble water, so that the piston is pushed to the second position without external fluid or external power, and the water machine in the application saves energy.

The application has the beneficial effects that a production line is provided, and the production line comprises a first container, a second container, production equipment and the flow channel switching device; the production equipment is communicated with the first through hole; the first container is used for bearing a first flowable material, the first container is communicated with the flow inlet, the flow outlet is communicated with the third through hole, when the first flowable material is introduced into the flow inlet, the first flowable material pushes the piston to move to a second position, and the first flowable material in the first container is supplied to the production equipment from the flow inlet, the accommodating cavity, the flow outlet, the third through hole, the second flow channel and the first through hole; the second container is used for bearing a second flowing object, and the second container is communicated with the second through hole, so that when the piston is located at the first position, the second flowing object in the second container is supplied to the production equipment from the second through hole, the first flow passage and the first through hole. Through the production line, the first flowable material in the first container can be introduced into the production equipment through the second flow passage to be supplied to the production equipment, when the first flowable material in the first container is insufficient or exhausted, the first flowable material in the accommodating cavity of the shell is insufficient to push the piston to move or maintain the piston at the second position, so that the piston moves to the first position, and the second flowable material in the second container is introduced into the production equipment through the first flow passage to be supplied to the production equipment. Through above-mentioned production line, when the first class animal in the first container is not enough or runs out, can be automatic switch to first runner from the second runner, do not need external fluid or external power to carry out the runner and switch, the succinct and energy saving of mechanism of the production line of this application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the figures in which like reference numerals refer to similar elements and which are not to scale unless otherwise specified.

Fig. 1 is a schematic form of a flow channel switching device provided in an embodiment of the present application;

fig. 2 is an exploded schematic view of a flow channel switching device provided in an embodiment of the present application;

FIG. 3 is a schematic view of a housing provided by an embodiment of the present application;

FIG. 4 is a schematic view of a piston with a seal installed according to an embodiment of the present application;

fig. 5 is another schematic form of the flow channel switching device provided in the embodiment of the present application;

FIG. 6 is a schematic view of a water machine provided by an embodiment of the present application;

FIG. 7 is a schematic representation of a partial schematic view of a water machine provided in an embodiment of the present application;

FIG. 8 is another schematic form of a partial schematic view of a water machine provided by an embodiment of the present application;

FIG. 9 is a schematic representation of a production line provided by embodiments of the present application;

FIG. 10 is another schematic form of a manufacturing line provided by an embodiment of the present application.

Detailed Description

In order to facilitate an understanding of the present application, the present application is described in more detail below with reference to the accompanying drawings and specific embodiments. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and the like as used herein are for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 and 2, the flow channel switching device 100 includes: the piston comprises a shell 10, a piston 20, a limiting member 30, a sealing member 40, a first sealing ring 50, a second sealing ring 60, a third sealing ring 70 and a fourth sealing ring 80. A piston 20 is disposed in the housing 10, the piston 20 being movable relative to the housing 10. The limiting member 30 is located between the housing 10 and the piston 20, and the limiting member 30 is used for limiting the movement of the piston 20. A seal 40 is located between the housing 10 and the piston 20. First seal ring 50, second seal ring 60, third seal ring 70 and fourth seal ring 80 are located between housing 10 and piston 20.

Referring to fig. 3, the housing 10 includes a body 11 and a cover 12, and the cover 12 is detachably connected to the body 11. The body 11 is provided with a containing cavity 101. The receiving cavity 101 is configured to receive the piston 20, the stopper 30, the sealing member 40, the first seal ring 50, the second seal ring 60, the third seal ring 70, and the fourth seal ring 80.

In some embodiments, the body 11 includes a bottom wall 111 and a side wall 112, and the side wall 112 is disposed around the bottom wall 111, so that the bottom wall 111 and the side wall 112 enclose to form the receiving cavity 101. The cover 12 is removably attached to the side wall 112. The cover plate 12 and the bottom wall 111 are oppositely disposed at both ends of the side wall 112.

In some embodiments, the sidewall 112 of the housing 10 is provided with a first through hole 102, a second through hole 103 and a third through hole 104 communicating with the receiving cavity 101. The bottom wall 111 of the housing 10 is provided with an inlet 105 and an outlet 106 communicating with the housing chamber 101.

It should be noted that the shape of the housing 10 is not limited to the cylindrical shape shown in fig. 3, and may be other shapes, such as a cubic shape or a spherical shape, and the first through hole 102, the second through hole 103, and the third through hole 104 are holes provided in the housing 10 to communicate with the housing cavity 101.

It should be noted that the inlet 105 and the outlet 106 are not limited to the form of being disposed on the bottom wall 111, and the inlet 105 and the outlet 106 may be disposed on the side wall 112 of the housing 10.

It should be noted that the outlet 106 may not be provided, and the function of the flow channel switching device 100 may not be affected.

It is worth noting that in some embodiments, the cover plate 12 and the body 11 of the housing 10 may also be integrally formed. Alternatively, in other embodiments, the side wall 112 of the housing 10 and the cover 12 are integrally formed, and the side wall 112 and the bottom wall 111 of the housing 10 are detachably connected.

The piston 20 is disposed in the housing chamber 101, and the piston 20 is disposed in the housing chamber. Referring to fig. 4, the piston 20 includes a piston rod 21 and an elastic member 22, one end of the elastic member 22 is connected to the inner wall of the housing 10, the other end of the elastic member 22 is connected to one end of the piston rod 21, and the other end of the piston rod 21 is movable relative to the housing 10.

With the above-described piston rod 21, the piston rod 21 is provided with a first flow passage 201 and a second flow passage 202. The first flow passage 201 penetrates the piston rod 21. The second flow passage 202 penetrates the piston rod 21.

When the piston rod 21 moves to the first position relative to the housing 10, the inlet of the first flow passage 201 is in contact with the first through hole 102, and the outlet of the first flow passage 201 is in contact with the second through hole 103, so that a flow passage of the first through hole 102, the first flow passage 201, and the second through hole 103 is formed as shown by F1 in fig. 1.

The "first position" is a position where the inlet of the first flow channel 201 of the piston rod 21 is in contact with the first through hole 102, and the outlet of the first flow channel 201 is in contact with the second through hole 103.

It should be noted that the inlet 105 is not connected to the first flow channel 201, and the inlet 105 is not connected to the second flow channel 202. When the first fluid is introduced into the fluid inlet 105, the first fluid enters the receiving cavity 101, and the first fluid generates pressure in the receiving cavity 101, so that the first fluid pushes the piston rod 21 to move to the second position, and at this time, the inlet of the second fluid channel 202 is abutted against the first through hole 102, and the outlet of the second fluid channel 202 is abutted against the third through hole 104, thereby forming a flow channel such as the first through hole 102, the second fluid channel 202, and the third through hole 104, as shown in F2 in fig. 5. That is, the flow passage of the first through hole 102, the first flow passage 201, and the second through hole 103 when the piston 20 is at the first position is switched by the first fluid to the flow passage of the first through hole 102, the second flow passage 202, and the third through hole 104 when the piston 20 is at the second position.

It should be noted that the first fluid can just push the piston 20 to the second position by controlling the flow rate, flow speed, etc. of the first fluid passing into the receiving cavity 101. Alternatively, the limiting member 30 may be arranged such that the first fluid can not push the piston 20 to move any more when pushing the piston 20 to the second position.

The "second position" is a position where the inlet of the second flow channel 202 of the piston rod 21 is in butt joint with the first through hole 102, and the outlet of the second flow channel 202 is in butt joint with the third through hole 104.

It is possible, among others, that the first fluid may be a gas, a liquid or another fluid.

It is noted that, when the piston 20 is located at the first position, the first through hole 102 is not connected to the inlet of the second flow channel 202, and the third through hole 104 is not connected to the outlet of the second flow channel 202. When the piston 20 is at the second position, the first through hole 102 is not connected to the inlet of the first flow channel 201, and the second through hole 103 is not connected to the outlet of the first flow channel 201.

It should be noted that the first flow channel 201 and the second flow channel 202 can be used as flow channels for gas, liquid or other fluids.

It should be noted that the housing 10 is provided with the inlet 105, and when the outlet 106 is not provided, the first fluid enters the receiving cavity 101 from the inlet 105 to push the piston 20 to the second position, and the first fluid in the receiving cavity 101 can also flow out from the inlet 105 to make the piston 20 fall to the first position.

It should be noted that when the housing 10 is provided with the inlet 105 and the outlet 106, the first fluid enters the receiving cavity 101 from the inlet 105 to push the piston 20 to the second position, and the first fluid in the receiving cavity 101 can flow out from the outlet 106 for secondary application.

The elastic member 22 may be provided on the inner wall of the housing 10, instead of the cover plate 12, may be provided on the side wall 112 of the housing 10, or the elastic member 22 may be provided on the bottom wall 111 of the housing 10.

In some embodiments, the resilient member 22 comprises a rubber article, a spring, a leaf spring, or the like.

In the case 10 and the piston 20, when the case 10 includes the body 11 and the cover 12, the cover 12 is detachably coupled to the body 11, and one end of the piston 20 is coupled to the cover 12, the piston 20 can be removed from the housing chamber 101 of the case 10 while the cover 12 is removed from the body 11, so that the piston 20 can be cleaned or replaced.

Referring to fig. 2, the limiting member 30 is located in the accommodating cavity 101, the limiting member 30 is connected to the inner wall of the housing 10, and when the piston 20 moves to the second position, the limiting member 30 abuts against the other end of the piston 20. The limiting member 30 may be connected to the upper cover or the sidewall 112 of the housing 10. When the elastic member 22 comprises a spring, the limiting member 30 can be disposed in the spring, so as to reasonably utilize the limited space in the accommodating cavity 101.

It will be appreciated that by providing the retaining member 30, when the first fluid passes through the receiving cavity 101 and pushes the piston 20 to the second position, the retaining member 30 limits further movement of the piston 20, so that the piston 20 is maintained at the second position.

Referring to fig. 4, the sealing member 40 is disposed around the piston rod 21 in the piston 20, and the sealing member 40 can move along with the movement of the piston rod 21. The seal 40 is used for sealing between the piston rod 21 and the housing 10.

In some embodiments, the piston rod 21 is provided with a recess 211 and the seal 40 is embedded in the recess 211 such that the seal 40 does not easily slide when the piston rod 21 is moved relative to the housing 10.

In some embodiments, the number of the sealing members 40 is two, two sealing members 40 are oppositely disposed at two ends of the piston rod 21, and the first flow passage 201 and the second flow passage 202 are located between the two sealing members 40, so as to not only enhance the sealing between the piston 20 and the housing 10, but also cut off the communication between the first flow passage 201 and the receiving cavity 101 and the communication between the second flow passage 202 and the receiving cavity 101.

It will be appreciated that when the number of seals 40 is two, the number of recesses 211 is two, with one seal 40 disposed in one of the recesses 211 and the other seal 40 disposed in the other of the recesses 211.

Referring to fig. 4, the first seal ring 50, the second seal ring 60, the third seal ring 70 and the fourth seal ring 80 are disposed on the piston 20.

The first sealing ring 50 is located at the inlet of the first flow passage 201, and the first sealing ring 50 is used for sealing the first flow passage 201 with the housing 10 and sealing between the first flow passage 201 and the housing 10 when the first through hole 102 is butted with the inlet of the first flow passage 201. The second sealing ring 60 is located at the outlet of the first flow passage 201, and the second sealing ring 60 is used for sealing the first flow passage 201 and the housing 10, and sealing the first flow passage 201 and the housing 10 when the second through hole 103 is abutted to the outlet of the first flow passage 201. When gas, liquid or other fluid is transferred through the first through hole 102, the first flow passage 201 and the second through hole 103, the fluid is not easily leaked to the outside of the housing 10 or the inside of the housing chamber 101 due to the arrangement of the first seal ring 50 and the second seal ring 60.

Wherein the third sealing ring 70 is located at the inlet of the second flow passage 202, and the third sealing ring 70 is used for sealing the second flow passage 202 with the housing 10, and sealing between the second flow passage 202 and the housing 10 when the first through hole 102 is butted with the inlet of the second flow passage 202. The fourth sealing ring 80 is located at the outlet of the second flow passage 202, and the fourth sealing ring 80 is used for sealing the second flow passage 202 with the housing 10, and sealing the second flow passage 202 with the housing 10 when the third through hole 104 is butted with the outlet of the second flow passage 202. When gas, liquid or other fluid is transferred through the first through hole 102, the second flow passage 202 and the third through hole 104, the fluid is not easily leaked to the outside of the housing 10 or the inside of the receiving chamber 101 due to the arrangement of the third seal ring 70 and the fourth seal ring 80.

In the embodiment of the present application, the flow channel switching device 100 includes a housing 10 and a piston 20. The shell 10 is provided with a containing cavity 101, a first through hole 102, a second through hole 103, a third through hole 104 and a flow inlet 105 which are communicated with the containing cavity 101; the piston 20 is arranged in the accommodating cavity 101, one end of the piston 20 is connected with the inner wall of the housing 10, and the other end of the piston 20 can move relative to the housing 10; the piston 20 is provided with a first flow passage 201 and a second flow passage 202; when the piston 20 is located at the first position, the inlet of the first flow passage 201 is butted with the first through hole 102, and the outlet of the first flow passage 201 is butted with the second through hole 103; a first fluid is introduced into the inlet 105, the first fluid enters the receiving cavity 101, the first fluid can push the piston 20 to move to a second position, an inlet of the second flow channel 202 is abutted with the first through hole 102, and an outlet of the second flow channel 202 is abutted with the third through hole 104. The flow switching device 100 provides a first flow passage 201 and a second flow passage 202 for use. In the flow channel switching device 100, the first fluid is introduced through the inlet 105 of the housing 10, and then the first fluid can push the piston 20 to move to the second position, so that the use state of the first flow channel 201 when the piston 20 is located at the first position is switched to the use state of the second flow channel 202 when the piston 20 is located at the second position by introducing the first fluid, and the flow channels do not need to be manually switched, which is very convenient.

When the flow channel switching device 100 is applied to the water machine 200, and the piston 20 is located at the first position, the first cup of water flowing out of the water tank 2001 can be discarded or can flow into the water tank 2001 for circulation, and then the flow channel is switched to the second flow channel 202 through the first fluid, so that the temperature of the water after the first cup of water is lower than that of the first cup of water, and the taste of the bubble water made of the water after the first cup of water is good.

The embodiment of the present application further provides an embodiment of a water machine 200, and as shown in fig. 6, the water machine 200 includes the base and the flow channel switching device 100. For the specific structure and function of the flow channel switching device 100, reference may be made to the above embodiments, which are not described herein again, and the substrate of the flow channel switching device 100 is stacked on the base under the absorption action of the absorption component. In some embodiments, the base may also be referred to as a universal platform.

Referring to fig. 6, the water machine 200 includes a water tank 2001, an air bottle 2002, a mixing system 2003, a controller (not shown), and the flow channel switching device 100. For the specific structure and function of the flow channel switching device 100, reference may be made to the above embodiments, and details are not repeated here.

In some embodiments, the water machine 200 further comprises a housing 2004, and the flow path switching device 100 is at least partially housed within the housing 2004. The water tank 2001 in the water machine 200 communicates with the first through hole 102, and when the piston 20 is located at the first position, the water tank 2001 communicates with the second through hole 103, thereby forming a flow path of the water tank 2001-the first through hole 102-the first flow path 201-the second through hole 103-the water tank 2001 as shown by F3 in fig. 7.

The gas cylinder 2002 is communicated with the flow inlet 105; the mixing system 2003 is respectively communicated with the third through hole 104 and the outflow port 106, and the mixing system 2003 is provided with a water outlet 20031; when the gas in the gas cylinder 2002 is introduced into the inlet 105, the gas flows through the receiving cavity 101, the gas pushes the piston 20 to move to the second position, the inlet of the second flow passage 202 is connected with the first through hole 102, the outlet of the second flow passage 202 is connected with the third through hole 104, and the water in the water tank 2001 enters the mixing system 2003 through the first through hole 102, the second flow passage 202 and the third through hole 104, so that a flow passage of the water tank 2001, the first through hole 102, the second flow passage 202, the third through hole 104 and the mixing system 2003 is formed as shown by F4 in fig. 8. The gas in the gas cylinder 2002 enters the mixing system 2003 from the inlet 105, the receiving chamber 101 and the outlet 106 along the flow path shown as F5 in fig. 8, and the water and gas mixed in the mixing system 2003 can flow out from the outlet 20031.

The controller is respectively connected with the water tank 2001 and the gas cylinder 2002, when the piston 20 is located at the first position, the controller is used for controlling water in the water tank 2001 to flow through the first through hole 102, and the controller is used for controlling the gas cylinder 2002 to introduce the gas into the accommodating cavity 101 from the flow inlet 105 after the water in the water tank 2001 flows through the first through hole 102 at a preset flow rate.

In some embodiments, the water machine 200 may be configured to output hot water, specifically, a heating device may be disposed between the water tank 2001 and the first through hole 102, so that water in the water tank 2001 firstly flows through the heating device and then enters the first through hole 102, after the water machine 200 outputs hot water, although heating by the heating device is stopped, when bubble water is produced by the water machine 200 due to residual heat of the heating device, a temperature of a first cup of water is higher, at this time, the water tank 2001 may be communicated with the first through hole 102 and the first flow channel 201, so that the first cup of water in the water tank 2001 firstly circulates to the water tank 2001 through the first through hole 102 and the first flow channel 201, then the piston 20 is moved to the second position under the action of the gas in the gas cylinder 2002, so as to cut off communication between the water tank 2001 and the first flow channel 201, so that the water tank 2001 is communicated with the second flow channel 202, and further water in the first cup of water in the water tank 2001 enters the mixing system 2003, the gas in the cylinder 2002 enters the mixing system 2003 through the outlet 106, eventually forming bubble water. The formed bubble water uses the water subsequent to the first cup of water, and the temperature of the water subsequent to the first cup of water is lower than that of the water subsequent to the first cup of water, so that the formed bubble water has good taste.

In addition, in this water machine 200, the gas in the gas cylinder 2002 not only can be used to participate in making bubble water, but also can push the piston 20 to move to the second position in the housing cavity 101 of the housing 10, that is, the gas in the gas cylinder 2002 can make the piston 20 move to the water tank 2001 to deliver water to the mixing system 2003 through the first through hole 102, the second flow channel 202 and the third through hole 104, and the structure of the water machine 200 of the present application is simple. In other words, the gas in the gas cylinder 2002 of the present application not only has a single gas for generating bubble water, but also can assist in reducing the temperature of the water for making bubble water, so that the piston 20 is pushed to the second position without external fluid or external power, and the water machine 200 of the present application saves energy.

Referring to fig. 9 or 10, the production line 300 further includes a first container 3001, a second container 3002, a production device 3003, and the flow channel switching apparatus 100. For the specific structure and function of the flow channel switching device 100, reference may be made to the above embodiments, and details are not repeated here.

The production equipment 3003 in the production line 300 may be any equipment requiring a supply of gas, liquid, or other fluid that may be used to cool, keep warm, or otherwise utilize the equipment.

The production equipment 3003 in the production line 300 communicates with the first through hole 102; the first container 3001 is used for carrying a first flowable material, the first container 3001 is communicated with the inlet 105, the outlet 106 is communicated with the third through hole 104, when the first flowable material is introduced into the inlet 105, the first flowable material pushes the piston 20 to move to a second position, and the first flowable material in the first container 3001 is supplied to the production apparatus 3003 from the inlet 105, the receiving cavity 101, the outlet 106, the third through hole 104, the second flow channel 202 and the first through hole 102 along a flow path shown as F6 in fig. 9. The second container 3002 is used for carrying a second flowable material, and the second container 3002 is in communication with the second through hole 103, so that when the piston 20 is located at the first position, the second flowable material in the second container 3002 is supplied to the production apparatus 3003 from the second through hole 103, the first flow passage 201, and the first through hole 102 along a flow passage shown as F7 in fig. 10. Through the production line 300, the first flowable material in the first container 3001 can be passed to the production equipment 3003 through the second flow passage 202 to supply the production equipment 3003, and when the first flowable material in the first container 3001 is insufficient or exhausted, the first flowable material in the receiving cavity 101 of the housing 10 is insufficient to push the piston 20 to move or maintain the second position, so that the piston 20 moves to the first position, and the second flowable material in the second container 3002 is passed to the production equipment 3003 through the first flow passage 201 to supply the production equipment 3003. Through the production line 300, when the first flowable material in the first container 3001 is insufficient or exhausted, the first flowable material can be automatically switched from the second flow channel 202 to the first flow channel 201, and the flow channel switching is performed without external fluid or external power, so that the production line 300 is simple in mechanism and saves energy.

It should be noted that the description of the present application and the accompanying drawings set forth preferred embodiments of the present application, however, the present application may be embodied in many different forms and is not limited to the embodiments described in the present application, which are not intended as additional limitations to the present application, but are provided for the purpose of providing a more thorough understanding of the present disclosure. Moreover, the above-mentioned technical features are combined with each other to form various embodiments which are not listed above, and all the embodiments are regarded as the scope described in the present specification; further, modifications and variations may occur to those skilled in the art in light of the foregoing description, and it is intended to cover all such modifications and variations as fall within the scope of the appended claims.