A sparkling water maker

Abstract

The present invention discloses a sparkling water machine, which includes a main body, an air path main body, an air inlet main body, an air inlet pressure rod, a driving rod and a pressing face cover. An installation cavity, a sparkling water cavity and a gas cylinder cavity are provided on the main body. An opening and closing door is provided on the sparkling water cavity. A main body installation bracket is provided in the installation cavity. The air path main body and the air inlet main body are pivotally connected to the main body installation bracket. A water bottle connector is provided at the bottom of the air path main body, and a gas cylinder interface is provided at the bottom of the air inlet main body. Compared with the prior art, the carbon dioxide gas cylinder and the sparkling water bottle can be inclined and installed on the gas cylinder interface and the water bottle connector, with a larger gripping space and more convenient installation. Moreover, the sparkling water cavity is protected by the opening and closing door, so as to prevent injuries when the sparkling water bottle explodes.

Description

Technical Field

[0001] The present invention relates to the field of sparkling water, and particularly to a sparkling water machine. Background Art

[0002] A sparkling water machine is a device for preparing sparkling water. Currently, the functions of the existing sparkling water machines are single. The sparkling water bottle and the carbon dioxide gas cylinder need to be installed on the sparkling water machine from the bottom of the connection port at a specified angle, resulting in a small gripping space and inconvenient installation. At the same time, when the sparkling water bottle is installed on the sparkling water machine, it is completely communicated with the external environment, leading to certain risks. That is, if the air pressure in the sparkling water bottle is too high, the bottle body is likely to fall off or explode, or the carbon dioxide gas is directly ejected onto the human body, which will directly harm the user, and the safety factor is relatively low. Moreover, the intake and exhaust need to be controlled by two independent buttons, resulting in a complex structure. Summary of the Invention

[0003] To solve the above problems, the purpose of the present invention is to provide a sparkling water machine that is convenient for installing a carbon dioxide gas cylinder and a sparkling water bottle, is safer, and can control both intake and exhaust through a single pressing cover.

[0004] The technical solution adopted by the present invention to solve the problem is: a sparkling water machine, comprising:

[0005] A main body, a sparkling water chamber is arranged at the front end of the main body, a gas cylinder chamber is arranged at the rear end of the main body, a switch door is arranged at the opening of the gas cylinder chamber, an installation cavity is arranged on the main body above the sparkling water chamber and the gas cylinder chamber, a main body installation bracket is arranged in the installation cavity, and a first installation hole and a second installation hole are arranged on the main body installation bracket.

[0006] An air path main body, a water bottle joint located in the sparkling water chamber and a gas nozzle located in the water bottle joint are arranged at the bottom of the air path main body. A main air path channel communicated with the gas nozzle is arranged on the air path main body. The water bottle joint encloses the bottom of the air path main body to form a communication area. The air path main body is pivotally connected in the first installation hole so as to drive the water bottle joint to swing back and forth relative to the main body. An exhaust cavity is arranged on the air path main body. An exhaust channel extending to the communication area is arranged at the front end of the exhaust cavity. An exhaust hole communicated with the outside of the air path main body is arranged at the rear end of the exhaust cavity. An exhaust valve is arranged in the exhaust cavity.

[0007] An intake main body, a gas cylinder interface located in the gas cylinder chamber is arranged at the bottom of the intake main body. An intake channel communicated with the main air path channel is arranged on the intake main body. An intake rod is arranged at the gas cylinder interface on the intake channel. The intake main body is pivotally connected in the second installation hole so as to drive the gas cylinder interface to swing relative to the main body.

[0008] The intake pressure rod is arranged in the installation cavity and is used to drive the intake rod to press down;

[0009] The driving rod is arranged in the installation cavity and is connected to the exhaust valve. The driving rod is used to drive the exhaust valve to move on the exhaust cavity;

[0010] The pressing cover is pivotally connected to the installation cavity in the middle and is located at the top of the main body. The pressing cover swings up and down relative to the installation cavity under the action of an external force. The driving ends of the intake pressure rod and the driving rod are both located at the bottom of the pressing cover. When the two sides of the pressing cover are pressed down, they can respectively drive the intake pressure rod and the driving rod into the working state.

[0011] As a further improvement of the above technical solution, an exhaust holding member is arranged in the installation cavity at the rear end of the gas path main body and facing the exhaust hole. The exhaust holding member is pivotally connected to the main body installation bracket so as to be able to swing horizontally relative to the gas path main body. A first reset member is arranged on the exhaust holding member. The surface of the exhaust holding member is provided with a normal contact position and a reciprocating sinking groove located below the normal contact position and smoothly transitioning with the normal contact position. A low position is arranged in the reciprocating sinking groove. The exhaust valve includes an exhaust valve body, an exhaust valve head located at the front end of the exhaust valve body for blocking the exhaust passage, and an exhaust valve rod located at the rear end of the exhaust valve body and extending outside the gas path main body through the exhaust hole. The exhaust valve rod is normally in contact with the normal contact position. The exhaust valve rod can move relative to the exhaust holding member to enter the reciprocating sinking groove to open the exhaust passage by the exhaust valve head. A driving pressure groove is inclinedly arranged on the exhaust holding member. The rear end of the driving rod is inserted into the driving pressure groove. The middle of the driving rod is pivotally connected to the main body installation bracket so that the driving rod can swing in the vertical direction. The front end of the driving rod is located at the lower end of the pressing cover.

[0012] As a further improvement of the above technical solution, the reciprocating sinking groove includes a first slideway and a second slideway connected to the first slideway at the end of the first slideway. The front end of the first slideway is lower than the surface of the exhaust holding member to form a first check surface. The end of the first slideway is higher than the starting end of the second slideway to form a second check surface. The end of the second slideway is smoothly guided to the normal contact position.

[0013] As a further improvement of the above technical solution, a protective door rail located inside the main body is provided at the upper end of the opening and closing door. The opening and closing door moves horizontally relative to the main body to open and close the sparkling water chamber. A limiting slot hole is provided on the protective door rail, and a pneumatic lock is provided in the installation cavity. The pneumatic lock includes a lock cavity and a lock body located in the lock cavity. An air guiding channel extending to the communication area is provided at the front end of the lock cavity, and an air outlet hole is provided at the rear end of the lock cavity. A front lock head is provided at the front end of the lock body, and a rear lock head for closing the air outlet hole is provided at the rear end of the lock body. A lock rod is inserted into the exhaust hole in the middle of the rear end of the lock body and extends to the outside of the pneumatic lock. A second reset member connected to the lock body and driving the lock body to move towards the front end of the lock cavity is provided in the lock cavity. When the rear lock head closes the air outlet hole, the lock rod is inserted into the limiting slot hole.

[0014] As a further improvement of the above technical solution, a limiting portion is provided on the air inlet pressure rod, and an air filling limiting block is pivotally connected in the installation cavity. The air filling limiting block includes a driving end at the front end and a limiting end at the rear end. The limiting end moves in and out below the limiting portion under the swinging action of the driving end. The driving end is located on the moving path of the protective door rail and partially overlaps with the protective door rail in the height direction. When the protective door rail moves, it abuts against the driving end and lifts the driving end. A third reset member for driving the driving end to reset downward is provided on the air filling limiting block.

[0015] As a further improvement of the above technical solution, a lock port is provided on the protective door rail, and a mechanical door latch located on the moving path of the protective door rail and used for being inserted into the lock port is provided at the front end of the driving rod. A guiding surface is provided on the edge of the mechanical door latch, a connecting frame is provided at the lower end of the pressing surface cover, and a lifting rod located at the front end of the driving tube and used for lifting the front end of the driving rod upward is provided on the connecting frame.

[0016] As a further improvement of the above technical solution, a rail is provided on the main body at the upper end of the opening of the sparkling water chamber. The protective door rail is inserted into the rail. A support for the opening and closing door is provided at the bottom of the main body. The support for the opening and closing door is connected to the lower end of the opening and closing door. The end of the support for the opening and closing door is pivotally connected to the bottom of the main body to assist the opening and closing door in swinging horizontally on the main body to open and close the sparkling water chamber. A reset torsion spring connected to the support for the opening and closing door is provided on the main body. A gear slot is provided on the support for the opening and closing door, a rack is provided on the gear slot, and a one-way damping gear meshing with the rack is provided in the main body. A protective door hidden cavity for the protective door to enter is provided on the main body at the side of the protective door.

[0017] As a further improvement of the above technical solution, pivot brackets are provided on both sides of the first mounting hole. First pivot shafts are provided on both sides of the gas path body and are pivotally connected to the pivot brackets. A swing track is provided on the side of the pivot bracket facing the gas path body. At least two positioning holes that are smoothly transitioned with the inner surface of the track are provided on the inner surface of the swing track. Mounting channels are provided on both sides of the gas path body. A shifting shaft with an arc-shaped front end is provided in the mounting channel. A top spring located at the rear end of the shifting shaft is provided in the mounting channel. The front end of the shifting shaft is inserted into the swing track and can enter and exit the positioning holes under the action of an external force.

[0018] As a further improvement of the above technical solution, second pivot holes that are open upward are provided on both sides of the second mounting hole on the main body mounting bracket. Second pivot shafts are provided on both sides of the intake main body and are installed in the second pivot holes along the upward opening. A connecting rod bracket that covers the upper end of the second pivot hole is provided on the main body mounting bracket. An elastic rod that extends into the second mounting hole is provided at the lower end of the connecting rod bracket. An elastic hook facing the intake main body is provided at the end of the elastic rod. A groove is vertically provided on the rear surface of the intake main body. A protruding limit stop is provided on the bottom surface of the groove. Inclined pushing surfaces for driving the elastic rod to deform toward the outside of the intake main body are jointly formed by the two side surfaces of the elastic hook and the two side surfaces of the limit stop respectively. During the swinging process of the intake main body, the elastic hooks are respectively located on both sides of the limit stop. The upper end of the intake rod extends to the upper surface of the connecting rod bracket. The end of the intake pressure rod is pivotally connected to the connecting rod bracket.

[0019] As a further improvement of the above technical solution, a gravity chamber is vertically provided on the gas path body. A gravity hole extending to the communication area is provided at the bottom of the gravity chamber. A gravity air release hole is provided at the top of the gravity chamber. A gravity valve body that can lift in the gravity chamber is provided in the gravity chamber. A gas guiding gap is formed between the gravity valve body and the side wall of the gravity chamber. A gravity valve head that closes the gravity air release hole when the gravity valve body is pushed up is provided at the top of the gravity valve body. Gas guiding grooves are provided on the bottom of the gravity valve body and / or the bottom surface of the gravity chamber.

[0020] The beneficial effects of the present invention are as follows: By pivotally connecting the air passage main body and the air inlet main body to the main body mounting bracket, the water bottle connector and the gas cylinder interface can swing back and forth relative to the main unit, so that the carbon dioxide gas cylinder and the sparkling water bottle can be inclined and mounted on the gas cylinder interface and the water bottle connector, and then the carbon dioxide gas cylinder and the sparkling water bottle are swung back to the gas cylinder cavity and the sparkling water cavity. The gripping space is larger and the installation is more convenient. At the same time, through an independently provided sparkling water cavity and a closing door for opening and closing the sparkling water cavity, during the process of preparing sparkling water by the sparkling water machine, the sparkling water bottle is enclosed in the sparkling water cavity. Even if the sparkling water bottle falls or explodes, it will not harm the user. By means of the pressing cover arranged on the top of the main unit, the air inlet pressure rod can be driven to drive the air inlet rod to start the carbon dioxide gas cylinder to supply gas to the sparkling water bottle, or the driving rod can be driven to drive the exhaust valve to move in the exhaust cavity to open the exhaust passage and the exhaust hole to exhaust the sparkling water bottle, and the operation is simpler and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further explained below in conjunction with the drawings and specific embodiments.

[0022] Figure 1 It is one of the structural schematic diagrams of the preferred embodiment of the present invention;

[0023] Figure 2 It is the structural schematic diagram inside the installation cavity;

[0024] Figure 3 It is Figure 2 The structural schematic diagram with the track and part of the main body mounting bracket hidden on the basis of

[0025] Figure 4 It is the second structural schematic diagram of the preferred embodiment of the present invention;

[0026] Figure 5 It is Figure 4 The cross-sectional structural schematic diagram in the A-A direction when the driving rod cooperates with the exhaust retaining member in the normal state;

[0027] Figure 6 It is Figure 4 The cross-sectional structural schematic diagram in the A-A direction when the driving rod cooperates with the exhaust retaining member in the exhaust state;

[0028] Figure 7 It is Figure 4 The cross-sectional structural schematic diagram in the B-B direction when the exhaust valve cooperates with the exhaust retaining member in the normal state;

[0029] Figure 8 It is Figure 4 The cross-sectional structural schematic diagram in the B-B direction when the exhaust valve cooperates with the exhaust retaining member in the exhaust state;

[0030] Figure 9For Figure 4 Schematic cross-sectional structure diagram in the B-B direction of the exhaust valve and the exhaust retaining member when the bubble water bottle is inclined and installed on the horizontal joint;

[0031] Figure 10 For Figure 4 Schematic cross-sectional structure diagram in the C-C direction of;

[0032] Figure 11 For Figure 4 Schematic cross-sectional structure diagram in the D-D direction of;

[0033] Figure 12 For Figure 4 Schematic cross-sectional structure diagram in the E-E direction under normal conditions;

[0034] Figure 13 For Figure 4 Schematic cross-sectional structure diagram in the E-E direction when the carbon dioxide gas cylinder is inclined and installed on the gas cylinder interface;

[0035] Figure 14 Schematic structure diagram of the inside of the gas cylinder in the present invention;

[0036] Figure 15 One of the explosion diagrams of the present invention;

[0037] Figure 16 Two of the explosion diagrams of the present invention;

[0038] Figure 17 Schematic structure diagram of the gas path main body pivotally connected to the main body mounting bracket;

[0039] Figure 18 Schematic structure diagram of the opening and closing door bracket cooperating with the main machine and the opening and closing door;

[0040] Figure 19 Schematic structure diagram of the exhaust retaining member;

[0041] Figure 20 One of the schematic structure diagrams of the gravity valve body;

[0042] Figure 21 Two of the schematic structure diagrams of the gravity valve body;

[0043] Figure 22 Schematic structure diagram of the exhaust main body cooperating with the connecting rod bracket;

[0044] Figure 23 Schematic structure diagram of the exhaust main body;

[0045] Figure 24 Schematic structure diagram of the connecting rod bracket. Detailed implementation method

[0046] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The function of the accompanying drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention. However, it should not be construed as a limitation on the protection scope of the present invention.

[0047] In the description of the present invention, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the present invention.

[0048] In the description of the present invention, the meaning of "several" is one or more, the meaning of "multiple" is more than two, "greater than", "less than", "exceeding", etc. are understood as not including the recited number, and "above", "below", "within", etc. are understood as including the recited number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence relationship of the indicated technical features.

[0049] In the description of the present invention, unless otherwise clearly defined, words such as "set", "installed", "connected", etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0050] Refer to Figures 1 to 24 , a sparkling water machine, comprising:

[0051] A main body 10, a sparkling water chamber 12 is arranged at the front end of the main body 10, a gas cylinder chamber 13 is arranged at the rear end of the main body 10, a closing door 14 is arranged at the opening of the gas cylinder chamber 13, an installation cavity 11 is arranged on the main body 10 above the sparkling water chamber 12 and the gas cylinder chamber 13, a main body installation bracket 20 is arranged in the installation cavity 11, and a first installation hole and a second installation hole are arranged on the main body installation bracket 20.

[0052] An air path main body 30, a water bottle connector 37 located in the bubble water chamber 12 is provided at the bottom of the air path main body 30, and an air nozzle 38 is located in the water bottle connector 37. A main air path channel communicated with the air nozzle 38 is provided on the air path main body 30. The water bottle connector 37 encloses the bottom of the air path main body 30 to form a communication area, and the communication area is communicated with the bubble water bottle after the bubble water bottle is installed on the water bottle connector 37. The air path main body 30 is pivotally connected in the first mounting hole so as to drive the water bottle connector 37 to swing back and forth relative to the host 10. An exhaust chamber 31 is provided on the air path main body 30. An exhaust channel 311 extending to the communication area is provided at the front end of the exhaust chamber 31, and an exhaust hole 312 communicated with the outside of the air path main body 30 is provided at the rear end of the exhaust chamber 31. An exhaust valve 32 is provided in the exhaust chamber 31;

[0053] An air inlet main body 40, a gas cylinder interface 41 located in the gas cylinder chamber 13 is provided at the bottom of the air inlet main body 40. An air inlet channel communicated with the main air path channel is provided on the air inlet main body 40. An air inlet rod 45 is provided at the gas cylinder interface 41 on the air inlet channel. The air inlet main body 40 is pivotally connected in the second mounting hole so as to drive the gas cylinder interface 41 to swing relative to the host 10;

[0054] An air inlet pressure rod 53 is provided in the installation cavity 11 and is used to drive the air inlet rod 45 to press down;

[0055] A driving rod 60 is provided in the installation cavity 11 and is connected to the exhaust valve 32. The driving rod 60 is used to drive the exhaust valve 32 to move on the exhaust chamber 31;

[0056] A pressing face cover 15 is pivotally connected to the installation cavity 11 in the middle and is located at the top of the host 10. The pressing face cover 15 swings up and down relative to the installation cavity 11 under the action of an external force. The driving ends 731 of the air inlet pressure rod 53 and the driving rod 60 are both located at the bottom of the pressing face cover 15. When the two sides of the pressing face cover 15 are pressed down, the air inlet pressure rod 53 and the driving rod 60 can be respectively driven into a working state.

[0057] By pivotally connecting the gas path main body 30 and the intake main body 40 to the main body mounting bracket 20, the water bottle connector 37 and the gas cylinder interface 41 can swing back and forth relative to the main machine 10, so that the carbon dioxide gas cylinder and the sparkling water bottle are inclined and installed on the gas cylinder interface 41 and the water bottle connector 37, and then the carbon dioxide gas cylinder and the sparkling water bottle are swung back to the inside of the gas cylinder cavity 13 and the sparkling water cavity 12. There is a larger gripping space and the installation is more convenient. At the same time, through an independently provided sparkling water cavity 12 and a door 14 for opening and closing the sparkling water cavity 12, during the process of the sparkling water machine preparing sparkling water, the sparkling water bottle is enclosed in the sparkling water cavity 12. Even if the sparkling water bottle falls off or explodes, it will not harm the user. By means of the pressing cover 15 provided on the top of the main machine 10, the intake pressure rod 53 can be driven to drive the intake rod 45 to start the carbon dioxide gas cylinder to supply gas to the sparkling water bottle, or the drive rod 60 can be driven to drive the exhaust valve 32 to move in the exhaust cavity 31, thereby opening the exhaust passage 311 and the exhaust hole 312 to exhaust the sparkling water bottle, and the operation is simpler and more convenient.

[0058] For further optimization, it is preferably provided that an exhaust retaining member 61 is arranged in the installation cavity 11 at the rear end of the gas path main body 30 and facing the exhaust hole 312. The exhaust retaining member 61 is pivotally connected to the main body mounting bracket 20 so as to be able to swing laterally relative to the gas path main body 30. A first reset member is arranged on the exhaust retaining member 61. A normal contact position 611 and a reciprocating sink 613 located below the normal contact position 611 and smoothly transitioning with the normal contact position 611 are arranged on the surface of the exhaust retaining member 61. A low position is arranged in the reciprocating sink 613. The exhaust valve 32 includes an exhaust valve body 321, an exhaust valve head 322 located at the front end of the exhaust valve body 321 for blocking the exhaust passage 311, and an exhaust valve rod 323 located at the rear end of the exhaust valve body 321 and extending outside the gas path main body 30 through the exhaust hole 312. The exhaust valve rod 323 is normally in contact with the normal contact position 611. The exhaust valve rod 323 can move relative to the exhaust retaining member 61 to enter the reciprocating sink 613 to open the exhaust passage 311 by the exhaust valve head 322. A driving pressure groove 612 is obliquely arranged on the exhaust retaining member 61. The rear end of the driving rod 60 is inserted into the driving pressure groove 612. The middle of the driving rod 60 is pivotally connected to the main body mounting bracket 20 so that the driving rod 60 can swing in the vertical direction. The front end of the driving rod 60 is located at the lower end of the pressing cover 15.

[0059] In the normal state, the exhaust valve stem 323 abuts against the normal abutment position 611, causing the exhaust valve head 322 to press against the port of the exhaust passage 311, thereby closing the exhaust passage 311. At this time, gas cannot be discharged through the exhaust passage 311. When entering the exhaust mode, by pressing the corresponding side of the pressing face cover 15, the front end of the driving rod 60 is lifted and the rear end is pressed down. Since the driving rod 60 is pivotally connected in the installation cavity 11 and is restricted to support vertical lifting and lowering, the exhaust holding member 61 is driven to swing through the inclined driving groove 612, so that the exhaust valve stem 323 enters the reciprocating groove 613 from the normal abutment position 611 and moves to the low point. At this time, the high air pressure in the bubble water bottle pushes the exhaust valve 32 to move in the exhaust cavity 31, so that the exhaust valve head 322 leaves the exhaust passage 311, thereby opening the exhaust passage 311. Thereafter, the gas in the bubble water bottle is discharged and depressurized along the exhaust passage 311 - exhaust cavity 31 - exhaust hole 312. After the exhaust is completed, the user releases the hand, and the exhaust holding member 61 is reset under the action of the first reset member, so that the exhaust valve stem 323 moves along the inner surface of the reciprocating groove 613 to reset to the normal abutment position 611, thereby re-blocking the exhaust passage 311. When the bubble water bottle is tilted and installed on the water bottle joint 37, since the gas path main body 30 swings relative to the main machine 10, the exhaust cavity 31 and the exhaust valve 32 will be synchronously driven to swing. The exhaust valve stem 323 moves downward under the swinging action of the gas path main body 30 and enters the reciprocating groove 613, so that during the installation of the bubble water bottle, the exhaust passage 311 - exhaust cavity 31 - exhaust hole 312 is in an open state, thereby preventing the danger of air intake into the bubble water bottle due to misoperation at this time.

[0060] Preferably, the reciprocating groove 613 includes a first slideway 6131 and a second slideway 6132 located at the end of the first slideway 6131 and communicating with the first slideway 6131. The front end of the first slideway 6131 is lower than the surface of the exhaust holding member 61 to form a first check surface. The end of the first slideway 6131 is higher than the starting end of the second slideway 6132 to form a second check surface. The end of the second slideway 6132 is smoothly guided to the normal abutment position 611, so that the user's exhaust valve stem 323 needs to enter the second slideway 6132 along the first slideway 6131 before it can be reset to the normal abutment position 611, thereby ensuring the exhaust efficiency. The user needs to press one end of the pressing face cover 15 to the bottom, so as to drive the end of the exhaust valve stem 323 to enter the second slideway 6132, so as to reset the exhaust valve 32 in the exhaust cavity 31.

[0061] Further optimized, preferably, the front end of the exhaust valve head 322 is conical.

[0062] Further improved, preferably, a fourth reset member 602 is provided at the bottom of the rear end of the driving rod 60, so as to better drive the driving rod 60 and the exhaust holding member 61 to reset.

[0063] For further optimization, it is preferred that an elastic member 324 is provided between the exhaust valve body 321 and the exhaust valve head 322. The elastic member 324 applies a force to the exhaust valve head 322 towards the exhaust passage 311. Thus, after the air pressure in the bubble water bottle is exhausted, the elastic member 324 can slightly push the exhaust valve head 322 onto the exhaust passage 311, and at the same time, reversely push the exhaust valve rod 323, so as to ensure that the exhaust valve rod 323 always abuts against the surface of the exhaust holding member 61.

[0064] For further optimization, it is preferred that a protection door rail 70 located inside the main body 10 is provided at the upper end of the opening and closing door 14. The opening and closing door 14 moves horizontally relative to the main body 10 to open and close the bubble water chamber 12. A limiting slot hole 71 is provided on the protection door rail 70. A pneumatic lock is provided in the installation cavity 11. The pneumatic lock is preferably directly provided on the gas path main body 30. The pneumatic lock includes a lock cavity 34 and a lock body 35 located in the lock cavity 34. An air guiding channel 341 extending to the communication area is provided at the front end of the lock cavity 34. An air outlet hole 342 is provided at the rear end of the lock cavity 34. A front lock head 352 is provided at the front end of the lock body 35. A rear lock head 353 for closing the air outlet hole 342 is provided at the rear end of the lock body 35. A lock rod 354 inserted into the exhaust hole 312 and extending outside the pneumatic lock is provided in the middle of the rear end of the lock body 35. A second reset member 351 connected to the lock body 35 and driving the lock body 35 to move towards the front end of the lock cavity 34 is provided in the lock cavity 34. When the rear lock head 353 closes the air outlet hole 342, the lock rod 354 is inserted into the limiting slot hole 71. With this structure, when the opening and closing door 14 is in the open state, the lock rod 354 does not coincide with the limiting slot hole 71. At this time, even if carbon dioxide gas is introduced into the bubble water bottle to form a high-pressure state, the carbon dioxide gas will push against the front lock head 352, causing the lock body 35 to move towards the rear end of the lock cavity 34. At this time, the lock rod 354 abuts against the surface of the protection door rail 70 but does not enter the limiting slot hole 71, so that the rear lock head 353 cannot move to close the air outlet hole 342. At this time, once the carbon dioxide gas in the bubble water bottle forms a high pressure, it will be discharged along the lock cavity 34 and the air outlet hole 342, so that a high-pressure state cannot be formed in the bubble water bottle to prepare bubble water. When the opening and closing door 14 is completely closed, the protection door rail 70 moves to align the limiting slot hole 71 with the lock rod 354. At this time, when the high air pressure in the bubble water bottle pushes the lock body 35 to move, the positions of the lock rod 354 and the limiting slot hole 71 coincide. Thus, under the action of air pressure, the lock rod 354 is pushed to be inserted into the limiting slot hole 71, so that the lock body 35 has sufficient moving distance, and the rear lock head 353 closes the air outlet hole 342 along the inner side of the lock cavity 34. At this time, the gas in the bubble water bottle will no longer escape, so that a high pressure can be formed to prepare bubble water. With this structure, it is ensured that the bubble water machine cannot work properly when the opening and closing door 14 is not closed, further ensuring safety.

[0065] For further optimization, it is preferred that a limiting portion is provided on the intake air pressure rod 53, and an air filling limiting block 73 is pivotally connected in the installation cavity 11. The air filling limiting block 73 includes a driving end 731 at the front end and a limiting end 732 at the rear end. The limiting end 732 moves in and out under the swinging action of the driving end 731 to the lower part of the limiting portion. The driving end 731 is located on the moving path of the protection door rail 70 and partially coincides with the protection door rail 70 in the height direction. When the protection door rail 70 moves, it abuts against the driving end 731 and lifts the driving end 731. A third resetting member for driving the driving end 731 to reset downward is provided on the air filling limiting block 73. In this state, when the opening and closing door 14 is opened, the protection door rail 70 moves to coincide with the driving end 731, thereby lifting the driving end 731, causing the limiting end 732 of the air filling limiting block 73 to displace horizontally and enter the lower end of the limiting portion of the intake air pressure rod 53, further restricting the downward pressure of the intake air pressure rod 53, so that the intake air pressure rod 53 cannot open the carbon dioxide gas cylinder and thus cannot enter the intake air mode. It is preferred that the limiting portion is a limiting plate 531 independently provided on the intake air pressure rod 53.

[0066] For further optimization, it is preferred that a lock port 72 is provided on the protection door rail 70, and a mechanical door latch 601 is provided at the front end of the driving rod 60. The mechanical door latch 601 is located on the moving path of the protection door rail 70 and is used to be inserted into the lock port 72. A guiding surface is provided on the edge of the mechanical door latch 601. A connecting frame 62 is provided at the lower end of the pressing surface cover 15, and a lifting rod 621 for lifting the front end of the driving rod 60 upward is provided on the connecting frame 62 at the front end of the driving tube. After the opening and closing door 14 is closed, the mechanical door latch 601 moves along the surface of the protection door rail 70 and is inserted into the lock port 72, thereby locking the opening and closing door 14 and further preventing the opening and closing door 14 from being opened when the bubble water machine is working. When entering the exhaust mode after the bubble water is prepared in the bubble water bottle, the pressing surface cover 15 is pressed to lift the front end of the driving rod 60, so that when the exhaust valve 32 works, at this time the driving rod 60 synchronously lifts the mechanical door latch 601 from the lock port 72. Then, after the gas in the bubble water bottle is exhausted, the second resetting member 351 drives the lock body 35 to move towards the front end of the lock cavity 34, so that the lock rod 354 disengages from the limiting slot hole 71, so that the opening and closing door 14 can be normally opened. Through the double protection of the air pressure lock and the mechanical door latch 601, the opening and closing door 14 cannot be opened when the bubble water machine is working.

[0067] Further optimization is carried out. Preferably, a track 74 is provided on the host 10 at the upper end and / or lower end of the opening of the sparkling water chamber 12, and the upper end and / or lower end of the opening and closing door 14 is installed on the track 74, so that the opening and closing of the sparkling water chamber 12 can slide more smoothly. Preferably, the track 74 is located at the upper end of the opening of the sparkling water chamber 12. Preferably, the track 74 is provided with a first notch corresponding to the limit slot hole 71, a second notch corresponding to the driving end 731 for the driving end 731 to be located therein, and a third notch corresponding to the locking port 72. The protection door track 70 is inserted into the track 74. A door opening and closing bracket 75 is provided at the bottom of the host 10. The door opening and closing bracket 75 is connected to the lower end of the opening and closing door 14. The end of the door opening and closing bracket 75 is pivotally connected to the bottom of the host 10 to assist the opening and closing door 14 to swing horizontally on the host 10 to open and close the sparkling water chamber 12. A return torsion spring 76 connected to the door opening and closing bracket 75 is provided on the host 10. A gear groove 77 is provided on the door opening and closing bracket 75. A rack 78 is provided on the gear groove 77. A one-way damping gear 79 meshing with the rack 78 is provided in the host 10. A protection door hidden chamber is provided on the host 10 on the side of the protection door for the protection door to enter. Through the return torsion spring 76, after the mechanical latch 601 is opened and at the same time the lock rod 354 is disengaged from the limit slot hole 71, the return torsion spring 76 drives the door opening and closing bracket 75 to rotate, thereby driving the opening and closing door 14 to automatically open horizontally. The one-way damping gear 79 buffers and limits the opening speed of the opening and closing door 14, thereby slowing down the opening speed of the opening and closing door 14 and reducing the impact effect generated when the opening and closing door 14 is opened. Preferably, buffer soft rubber pads are provided on the inner side edge of the opening of the sparkling water chamber 12 and the inner side wall of the opening and closing door hidden chamber for abutting against the edge of the opening and closing door 14. Preferably, a handle 141 is provided on the surface of the opening and closing door 14 to facilitate the operation of the opening and closing door 14.

[0068] In other embodiments, the track 74 may not be provided, but two sets of door opening and closing brackets 75 arranged above and below the host 10 are used to limit and assist the movement track of the opening and closing door 14.

[0069] For further optimization, preferably, pivot brackets 23 are provided on both sides of the first mounting hole. First pivot shafts 39 pivotally connected to the pivot brackets 23 are provided on both sides of the gas path body 30. The gas path body 30 can also be pivotally connected to the first mounting hole by providing shaft holes on the side wall of the first mounting hole and the side wall of the gas path body 30, and inserting a rotating shaft into the shaft holes on the side wall of the first mounting hole and the side wall of the gas path body to achieve the pivoting effect. On the side of the pivot bracket 23 facing the gas path body 30, a swing track 24 is provided. At least two positioning holes 25 that are smoothly transitioned with the inner surface of the track 74 are provided on the inner surface of the swing track 24. Mounting grooves 391 are provided on both sides of the gas path body 30. A shifting shaft 392 with an arc-shaped front end is provided in the mounting grooves 391. A ejecting spring located at the rear end of the shifting shaft 392 is provided in the mounting grooves 391. The front end of the shifting shaft 392 is inserted into the swing track 24 and can enter and exit the positioning holes 25 under the action of an external force. The swing track 24 can limit the swing amplitude of the gas path body 30 and can also assist in the swinging of the gas path body 30. During the swinging of the gas path body 30, the arc surfaces at the edges of the shifting shaft 392 and the positioning holes 25 exert opposite forces on each other, causing the shifting shaft 392 to be pressed into the mounting grooves 391, so that the shifting shaft 392 disengages from the positioning holes 25 and moves into the swing track 24, and then enters the next positioning hole 25 and is stuck. A certain force needs to be applied during the swinging process to release the gas path body 30 from the restriction of the positioning holes 25. Thus, the positioning holes 25 form a gear state during the swinging process of the gas path body 30. Preferably, there are two positioning holes 25, corresponding respectively to the state where the gas path body 30 swings to the maximum position to facilitate the installation of the bubble water bottle, and the state where the gas path body 30 swings to the minimum position so that the bubble water bottle is in the working position.

[0070] Preferably, a limiting groove is provided at the rear end of the inner wall of the mounting groove 391. A limiting boss inserted into the limiting groove is provided on the rear surface of the shifting shaft 392. By inserting the limiting boss into the limiting groove, the moving distance of the shifting shaft 392 in the mounting groove 391 is restricted, preventing the shifting shaft 392 from disengaging from the mounting groove 391. Preferably, the limiting boss is in a wedge shape that gradually thickens from the tail end to the front end of the shifting shaft 392.

[0071] In one embodiment, the shifting shaft 392 is in the form of a spherical ball.

[0072] In this solution, preferably, the main body mounting bracket 20 includes a main frame and a sub-frame 21 mounted on the main frame. The first mounting hole and the pivot brackets 23 are both provided on the sub-frame 21. During production, the gas path body 30 is first mounted on the sub-frame 21, and then the sub-frame 21 is mounted at the bottom of the main frame, which can facilitate production and installation.

[0073] In this solution, it is preferred that an upper protective cover covering the upper end of the air path main body 30 is provided on the main body mounting bracket 20.

[0074] For further optimization, it is preferred that second pivot holes 22 which are located on both sides of the second mounting hole and have upper openings are provided on the main body mounting bracket 20. Second pivot shafts 42 which are installed in the second pivot holes 22 along the upper openings are provided on both sides of the air inlet main body 40. A connecting rod bracket 50 covering the upper ends of the second pivot holes 22 is provided on the main body mounting bracket 20. An elastic rod 51 extending into the second mounting hole is provided at the lower end of the connecting rod bracket 50. An elastic hook 52 facing the air inlet main body 40 is provided at the end of the elastic rod 51. A groove 43 is vertically provided on the rear end surface of the air inlet main body 40. A raised limiting stop 44 is provided on the bottom surface of the groove 43. Inclined pushing surfaces for driving the elastic rod 51 to deform towards the outside of the air inlet main body 40 are jointly formed by the two side surfaces of the elastic hook 52 and the two side surfaces of the limiting stop 44 respectively. During the swinging process of the air inlet main body 40, the elastic hooks 52 are respectively located on both sides of the limiting stop 44. The upper end of the air inlet rod 45 extends to the upper surface of the connecting rod bracket 50. The end of the air inlet pressing rod 53 is pivotally connected to the connecting rod bracket 50. During the swinging process of the air inlet main body 40, the limiting stop 44 will be driven to swing synchronously, so that the limiting stop 44 presses the elastic hook 52 and then drives the elastic rod 51 to deform in a direction away from the air inlet main body 40, so that the elastic hook 52 crosses over the limiting stop 44 to the other side. Through the cooperation of the limiting stop 44 and the elastic hook 52, the air inlet main body 40 forms two fixed positions, namely a normal working mode in which the air inlet main body 40 is in a vertical state and a gas cylinder installation mode in which the air inlet main body 40 is in an inclined state. When the air inlet main body 40 is in any one of the modes, a certain external force is required to make the limiting stop 44 cross over the restriction of the elastic hook 52 and enter the other mode. It is preferred that the included angle between the two side surfaces of the limiting stop 44 and the inner surface of the groove 43 is an obtuse angle. It is preferred that the front end of the air inlet pressing rod 53 is located below the front end of the pressing surface cover 15. When the front end of the pressing surface cover 15 is pressed, the front end of the pressing surface cover 15 drives the air inlet pressing rod 53 to press down synchronously, and then the carbon dioxide gas cylinder is started to intake air through the air inlet rod 45. At this time, the front end of the pressing surface cover 15 will not contact the front end of the driving rod 60. When the rear end of the pressing surface cover 15 is pressed, the front end of the pressing surface cover 15 tilts up, so as to drive the driving rod 60 to swing through the connecting frame 62, and then exhaust air.

[0075] It is preferred that a pressing needle 532 located directly above the air inlet rod 45 is provided at the bottom of the air inlet pressing rod 53. Only when the air inlet main body 40 is in the normal working mode, the air inlet rod 45 is exactly located at the bottom of the pressing needle 532 so that it can be driven to press down by the air inlet pressing rod 53. When the air inlet main body 40 swings towards the outside of the main body for installing the carbon dioxide gas cylinder, at this time the air inlet rod 45 is misaligned with the pressing needle 532, so that the air inlet rod 45 cannot be pressed down.

[0076] For further optimization, preferably, a bayonet 131 for fixing the carbon dioxide gas cylinder is provided at the bottom of the gas cylinder chamber 13, so that the carbon dioxide gas cylinder can be further fixed through the bayonet 131.

[0077] For further optimization, preferably, a gravity chamber 33 is vertically provided on the gas path main body 30. A gravity hole 331 extending to the communication area is provided at the bottom of the gravity chamber 33, a gravity air release hole 332 is provided at the top of the gravity chamber 33, a gravity valve body 333 capable of lifting and lowering in the gravity chamber 33 is provided in the gravity chamber 33, a gas guiding gap is formed between the gravity valve body 333 and the side wall of the gravity chamber 33, a gravity valve head 3331 for closing the gravity air release hole 332 when the gravity valve body 333 is lifted is provided at the top of the gravity valve body 333, and a gas guiding groove 3332 is provided at the bottom of the gravity valve body 333 and / or the bottom surface of the gravity chamber 33. Due to the presence of the gravity valve, during the process of installing the bubble water bottle on the bubble water machine for storage, if the carbon dioxide gas cylinder leaks through the air inlet main body 40, the air pressure generated by the slowly leaking carbon dioxide gas is not sufficient to lift the gravity valve body 333, so that the carbon dioxide gas is naturally discharged along the gravity hole 331 - gravity chamber 33 - gravity air release hole 332, preventing the bubble water bottle from forming a high-pressure state due to air leakage during storage. When the bubble water machine works, since the carbon dioxide gas rapidly fills into the bubble water bottle, the high-pressure gas lifts the gravity valve body 333, so that the gravity valve head 3331 blocks the gravity air release hole 332, so that the air pressure in the bubble water bottle can rise normally. The function of the gas guiding groove 3332 is to enable the gas to flow better when the gravity valve body 333 falls to the bottom of the gravity chamber 33 due to gravity.

[0078] For further optimization, in order to prevent the air pressure in the bubble water bottle from being too high, preferably, a pressure relief chamber 36 is provided on the gas path main body 30. A pressure relief channel 361 extending to the communication area and a pressure relief hole 362 communicating with the outside of the gas path main body 30 are respectively provided at both ends of the pressure relief chamber 36. A pressure relief valve 363 is provided in the pressure relief chamber 36. A pressure relief gap is formed between the pressure relief valve 363 and the pressure relief hole 362. A pressure relief valve head 363 for closing the pressure relief channel 361 is provided at the end of the pressure relief valve 363, and a fifth reset member 364 for pressing the pressure relief valve 363 against the pressure relief channel 361 is provided at the end of the pressure relief valve 363. When the air pressure in the bubble water bottle is too high, the air pressure in the bubble water bottle pushes the pressure relief valve 363 to overcome the reset pressure of the fifth reset member 364, thereby opening the pressure relief channel 361, so that the gas in the bubble water bottle is discharged along the pressure relief hole 362. The fifth reset member 364 forms a dynamic balance with the air pressure in the bubble water bottle, thereby ensuring the air pressure in the bubble water bottle.

[0079] For further optimization, it is preferred that a limit bracket 80 is installed on the main body mounting bracket 20. A reset push rod 81 for abutting against the bottom surface of the pressing face cover 15 is provided on the limit bracket 80. A reset spring for driving the reset push rod 81 to move upward is provided at the bottom of the reset push rod 81. When the pressing face cover 15 is in a horizontal state on the top of the main unit 10, the reset push rod 81 is in a horizontal state under the action of the reset spring. The reset push rod 81 is located below the rear side of the pressing face cover 15. Thus, firstly, the downward pressing amplitude of the rear end of the pressing face cover 15 can be limited, and secondly, it can cooperate with the air inlet pressure rod 53 synchronously to enable the pressing face cover 15 to automatically restore the horizontal balance state when the external force is removed.

[0080] In other embodiments, the air inlet pressure rod 53 can indirectly drive the air inlet rod 45 to press down. For example, a momentary switch is provided at the lower end of the air inlet pressure rod 53. The momentary switch is electrically connected to a driving motor, and the driving motor is connected to the air inlet rod 45. Thus, when the air inlet pressure rod 53 presses down to touch the momentary switch, the air inlet rod 45 is driven to press down by the driving motor.

[0081] In this solution, the first reset member, the second reset member 351, the third reset member, the fourth reset member 602, and the fifth reset member 364 are all preferably in the form of springs, and can also be in the form of elastic columns, a group of mutually repulsive magnets, etc.

[0082] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. All equivalent structural transformations made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A bubble water machine, characterized in that, it includes: A main body (10) with a bubble water chamber (12) provided at the front end thereof, a gas cylinder chamber (13) provided at the rear end thereof, an opening and closing door (14) provided at the opening of the gas cylinder chamber (13), an installation cavity (11) provided on the main body (10) above the bubble water chamber (12) and the gas cylinder chamber (13), a main body installation bracket (20) provided in the installation cavity (11), and a first installation hole and a second installation hole provided on the main body installation bracket (20); An air path main body (30) with a water bottle connector (37) located in the bubble water chamber (12) at the bottom thereof and a gas nozzle (38) located in the water bottle connector (37), a main air path channel communicated with the gas nozzle (38) provided on the air path main body (30), the water bottle connector (37) enclosing the bottom of the air path main body (30) to form a communication area, the air path main body (30) being pivotally connected in the first installation hole so as to drive the water bottle connector (37) to swing back and forth relative to the main body (10), an exhaust cavity (31) provided on the air path main body (30), an exhaust channel (311) extending to the communication area provided at the front end of the exhaust cavity (31), an exhaust hole (312) communicated with the outside of the air path main body (30) provided at the rear end of the exhaust cavity (31), and an exhaust valve (32) provided in the exhaust cavity (31); An air intake main body (40) with a gas cylinder interface (41) located in the gas cylinder chamber (13) at the bottom thereof, an air intake channel communicated with the main air path channel provided on the air intake main body (40), an air intake rod (45) located at the gas cylinder interface (41) provided on the air intake channel, the air intake main body (40) being pivotally connected in the second installation hole so as to drive the gas cylinder interface (41) to swing relative to the main body (10); An air intake pressure rod (53) provided in the installation cavity (11) and used to drive the air intake rod (45) to press down; A driving rod (60) provided in the installation cavity (11) and connected to the exhaust valve (32), the driving rod (60) being used to drive the exhaust valve (32) to move on the exhaust cavity (31); A pressing face cover (15) pivotally connected to the installation cavity (11) in the middle thereof and located on the top of the main body (10), the pressing face cover (15) swinging up and down relative to the installation cavity (11) under the action of an external force, the driving ends (731) of the air intake pressure rod (53) and the driving rod (60) both being located at the bottom of the pressing face cover (15), and when the two sides of the pressing face cover (15) are pressed down, the air intake pressure rod (53) and the driving rod (60) can be respectively driven to enter the working state; At the upper end of the opening and closing door (14), there is a protective door rail (70) located inside the main machine (10). The opening and closing door (14) moves horizontally relative to the main machine (10) to open and close the sparkling water chamber (12). A limiting slot hole (71) is provided on the protective door rail (70). An air pressure lock is provided in the installation cavity (11). The air pressure lock includes a lock cavity (34) and a lock body (35) located inside the lock cavity (34). An air guiding channel (341) extending to the communication area is provided at the front end of the lock cavity (34). An air outlet hole (342) is provided at the rear end of the lock cavity (34). A front lock head (352) is provided at the front end of the lock body (35). A rear lock head (353) for closing the air outlet hole (342) is provided at the rear end of the lock body (35). A lock rod (354) is inserted into the exhaust hole (312) at the middle of the rear end of the lock body (35) and extends to the outside of the air pressure lock. A second reset member (351) connected to the lock body (35) and driving the lock body (35) to move towards the front end of the lock cavity (34) is provided in the lock cavity (34). When the rear lock head (353) closes the air outlet hole (342), the lock rod (354) is inserted into the limiting slot hole (71). At the bottom of the gas cylinder chamber (13), there is a bayonet (131) for fixing the carbon dioxide gas cylinder.

2. A sparkling water machine according to claim 1, characterized in that: An exhaust holding member (61) is provided in the installation cavity (11) at the rear end of the gas path main body (30) and facing the exhaust hole (312). The exhaust holding member (61) is pivotally connected to the main body installation bracket (20) so as to be able to swing horizontally relative to the gas path main body (30). A first reset member is provided on the exhaust holding member (61). A normal contact position (611) and a reciprocating sinking groove (613) located below the normal contact position (611) and smoothly transitioning with the normal contact position (611) are provided on the surface of the exhaust holding member (61). A low position is provided in the reciprocating sinking groove (613). The exhaust valve (32) includes an exhaust valve body (321), an exhaust valve head (322) located at the front end of the exhaust valve body (321) for blocking the exhaust passage (311), and an exhaust valve rod (323) located at the rear end of the exhaust valve body (321) and extending through the exhaust hole (312) to the outside of the gas path main body (30). The exhaust valve rod (323) is normally in contact with the normal contact position (611). The exhaust valve rod (323) can move relative to the exhaust holding member (61) to enter the reciprocating sinking groove (613) to open the exhaust passage (311) by the exhaust valve head (322). A driving pressure groove (612) is inclinedly provided on the exhaust holding member (61). The rear end of the driving rod (60) is inserted into the driving pressure groove (612). The middle of the driving rod (60) is pivotally connected to the main body installation bracket (20) so that the driving rod (60) can swing in the vertical direction. The front end of the driving rod (60) is located at the lower end of the pressing face cover (15).

3. A sparkling water machine according to claim 2, characterized in that: The reciprocating chute (613) includes a first chute (6131) and a second chute (6132) located at the end of the first chute (6131) and communicating with the first chute (6131). The front end of the first chute (6131) is lower than the surface of the exhaust holding member (61) to form a first check surface. The end of the first chute (6131) is higher than the starting end of the second chute (6132) to form a second check surface. The end of the second chute (6132) is smoothly guided to the normal contact position (611).

4. A sparkling water machine according to claim 1, wherein: a limiting portion is provided on the air inlet pressure rod (53). An air filling limiting block (73) is pivotally connected in the installation cavity (11). The air filling limiting block (73) includes a driving end (731) at the front end and a limiting end (732) at the rear end. The limiting end (732) moves in and out under the swinging action of the driving end (731) to be below the limiting portion. The driving end (731) is located on the moving path of the protection door rail (70) and partially coincides with the protection door rail (70) in the height direction. When the protection door rail (70) moves, it abuts against the driving end (731) and lifts the driving end (731). A third reset member for driving the driving end (731) to reset downward is provided on the air filling limiting block (73).

5. A sparkling water machine according to claim 1, wherein: a locking port (72) is provided on the protection door rail (70). A mechanical door latch (601) is provided at the front end of the driving rod (60) and is located on the moving path of the protection door rail (70) and is used to be inserted into the locking port (72). A guiding surface is provided on the edge of the mechanical door latch (601). A connecting frame (62) is provided at the lower end of the pressing surface cover (15). An upward lifting rod (621) is provided on the connecting frame (62) and is located at the front end of the driving tube and is used to lift the front end of the driving rod (60) upward.

6. A sparkling water machine according to claim 1, wherein: a track (74) is provided on the main body (10) at the upper end of the opening of the sparkling water chamber (12). The protection door rail (70) is inserted into the track (74). A door opening and closing support (75) is provided at the bottom of the main body (10). The door opening and closing support (75) is connected to the lower end of the door opening and closing door (14). The end of the door opening and closing support (75) is pivotally connected to the bottom of the main body (10) to assist the door opening and closing door (14) to swing horizontally on the main body (10) to open and close the sparkling water chamber (12). A reset torsion spring (76) connected to the door opening and closing support (75) is provided on the main body (10). A gear groove (77) is provided on the door opening and closing support (75). A rack (78) is provided on the gear groove (77). A one-way damping gear (79) meshing with the rack (78) is provided in the main body (10). A protection door hidden cavity for the protection door to enter is provided on the main body (10) at the side of the protection door.

7. A sparkling water machine according to claim 1, wherein: On both sides of the first mounting hole, there are pivot frames (23). On both sides of the gas path main body (30), there are first pivot shafts (39) pivotally connected to the pivot frames (23). On the side of the pivot frame (23) facing the gas path main body (30), there is a swing track (24). On the inner surface of the swing track (24), there are at least two positioning holes (25) that are smoothly transitioned with the inner surface of the track (74). On both sides of the gas path main body (30), there are mounting channels (391). Inside the mounting channels (391), there is a dial shaft (392) with an arc-shaped front end. Inside the mounting channels (391), there is an ejection spring located at the rear end of the dial shaft (392). The front end of the dial shaft (392) is inserted into the swing track (24) and can enter and exit the positioning holes (25) under the action of an external force.

8. A bubble water machine according to claim 1, characterized in that: On the main body mounting bracket (20), there are second pivot holes (22) that are open at the top and located on both sides of the second mounting hole. On both sides of the air intake main body (40), there are second pivot shafts (42) installed along the upper opening in the second pivot holes (22). On the main body mounting bracket (20), there is a connecting rod bracket (50) covering the upper end of the second pivot hole (22). At the lower end of the connecting rod bracket (50), there is an elastic rod (51) extending into the second mounting hole. At the end of the elastic rod (51), there is an elastic hook (52) facing the air intake main body (40). On the rear surface of the air intake main body (40), there is a groove (43) vertically arranged. On the bottom surface of the groove (43), there is a protruding limit stop (44). The two side surfaces of the elastic hook (52) cooperate with the two side surfaces of the limit stop (44) respectively to jointly form an inclined pushing surface for driving the elastic rod (51) to deform towards the outside of the air intake main body (40). During the swinging process of the air intake main body (40), the elastic hook (52) is respectively located on both sides of the limit stop (44). The upper end of the air intake rod (45) extends to the upper surface of the connecting rod bracket (50). The end of the air intake pressure rod (53) is pivotally connected to the connecting rod bracket (50).

9. A bubble water machine according to claim 1, characterized in that: On the gas path main body (30), there is a gravity chamber (33) vertically arranged. At the bottom of the gravity chamber (33), there is a gravity hole (331) extending to the communication area. At the top of the gravity chamber (33), there is a gravity air release hole (332). Inside the gravity chamber (33), there is a gravity valve body (333) that can lift inside the gravity chamber (33). A gas guiding gap is formed between the gravity valve body (333) and the side wall of the gravity chamber (33). At the top of the gravity valve body (333), there is a gravity valve head (3331) that closes the gravity air release hole (332) when the gravity valve body (333) is lifted. On the bottom of the gravity valve body (333) and / or the bottom surface of the gravity chamber (33), there is a gas guiding groove (3332).

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