A bubble water machine with a safety door

Abstract

The present invention discloses a bubble water machine with a safety door, comprising a main unit, a bubble water chamber, an air intake assembly, and an air path main unit. The bubble water chamber is provided with an opening and closing door, and a bottle mouth connection position and an air nozzle are provided in the bubble water chamber. When in use, the opening and closing door is opened, a bubble water bottle is placed in the bubble water chamber and installed on the bottle mouth connection position, the air nozzle is inserted into the bubble water bottle, and then the opening and closing door is closed. Thereafter, inflation preparation is performed. The bubble water chamber and the opening and closing door play a protective role, preventing the bubble water bottle from exploding, collapsing, and the like, which are caused by excessive pressure in the bubble water bottle, from directly acting on the user, thereby being safer.

Description

Technical Field

[0001] The present invention relates to the field of bubble water machines, in particular to a bubble water machine with a safety door. Background Art

[0002] A sparkling water machine is a machine that prepares sparkling water. Current machines, such as the one disclosed in Patent No. 201922089186.3, have the bottle of sparkling water directly exposed to the outside of the machine. This approach, however, poses certain safety risks. If the aeration mechanism on the machine fails and leaks, causing high-pressure gas from the carbon dioxide cylinder to continuously flow into the bottle, it can easily lead to excessive pressure inside the bottle, causing the bottle to collapse or explode. Therefore, high-quality requirements are placed on the bottle. Summary of the Invention

[0003] In order to solve the above problems, the purpose of the present invention is to provide a bubble water machine with a safety door, so that the bubble water bottle is protected by the safety door during operation, and no one will be injured even if the bottle explodes.

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

[0005] A main unit, wherein the main unit is provided with a bubble water chamber in which the bubble water bottle is movably mounted, the top of the bubble water chamber is provided with a bottle mouth connection position and a gas nozzle located on the bottle mouth connection position, the main unit is provided with a main body mounting bracket, the main body mounting bracket is provided with an air intake assembly and an air circuit main body connected to the gas nozzle, the air intake assembly is provided with a carbon dioxide gas cylinder connection position, the air intake assembly is communicated with the air circuit main body, the air circuit main body is provided with an air intake structure and an exhaust structure, and the front end of the bubble water chamber is provided with an opening and closing door for opening and closing the bubble water chamber.

[0006] As a further improvement of the above technical solution, a protective door rail located in the main unit is installed on the upper end of the opening and closing door, and the opening and closing door moves laterally relative to the main unit to open and close the opening and closing door.

[0007] As a further improvement of the above technical solution, a limiting slot is provided on the protective door rail, and a pneumatic lock is fixedly provided in the main unit. The pneumatic lock includes a lock cavity, and the front end of the lock cavity is provided with an air inlet channel extending to the bottle mouth connection position and used to communicate with the bubble water bottle, and the rear end of the lock cavity is provided with an air outlet. A lock body is provided in the lock cavity, and the front end of the lock body is provided with a first sealing member for closing the air inlet channel, and the rear end of the lock body is provided with a second sealing member for closing the air outlet. A first reset member connected to the lock body and driving the lock body to move toward the front end of the lock cavity is provided in the lock cavity, and a locking rod inserted in the exhaust hole and extending to the outside of the pneumatic lock is provided at the rear end of the lock body. When the rear end of the lock body closes the air outlet, the locking rod is inserted in the limiting slot.

[0008] As a further improvement of the above technical solution, the air intake assembly includes an air intake rod for opening and closing the carbon dioxide cylinder, and the main unit is provided with an air intake pressure rod located at the upper end of the air intake rod and used to press the air intake rod downward, and the surface of the main unit is provided with a driving part for driving the air intake pressure rod to press downward.

[0009] As a further improvement of the above technical solution, a limiting portion is provided on the air intake pressure rod, and an air filling limit block is pivotally connected in the main unit. The air filling limit block includes a driving end at the front end and a limiting end at the rear end. The limiting end moves in and out to the bottom of 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 at least partially overlaps with the protective door rail in height. A driving guide surface is provided on the driving end and / or the end of the protective door rail. When the protective door rail moves, it abuts against the driving end and drives the driving end to swing upward through the driving guide surface. A second reset component that drives the driving end to swing downward is provided on the air filling limit block, and a limit locking device that limits the swing amplitude of the air filling limit block is also provided in the main unit.

[0010] As a further improvement of the above technical solution, a lock is provided on the protective door rail, a mechanical door latch is provided in the host computer, which is located on the moving path of the protective door rail and is used to be engaged with the lock, a second guide surface is provided on the mechanical door latch, and an unlocking device for driving the mechanical door latch to disengage from the lock is provided on the host computer.

[0011] As a further improvement of the above technical solution, the unlocking device is a pressing surface cover arranged on the top of the main body, the middle part of the pressing surface cover is pivotally connected to the main body, the exhaust structure includes an exhaust channel arranged on the gas circuit main body and an exhaust valve located in the exhaust channel, the exhaust channel includes a valve hole extending to the bottle mouth connection position and a valve cavity located at the rear end of the valve hole, the rear end of the valve cavity is provided with an exhaust hole connected to the rear end of the gas circuit main body, the exhaust valve is located in the valve cavity, the exhaust valve includes a valve body and a sealing plug arranged at the front end of the valve body for sealing the valve hole, the rear end of the valve body is provided with a valve stem passing through the exhaust hole and extending to the outside of the gas circuit main body, the main body is pivotally connected to an exhaust retainer located on one side of the gas circuit main body and facing the exhaust hole, the surface of the exhaust retainer is provided with a normal abutment position and a valve portion located at the normal abutment position The cam is provided with a groove on one side, the end of the valve stem abuts against the normal abutment position and can move relative to the exhaust retaining member, the exhaust retaining member is obliquely provided with a driving pressure groove, the main engine is pivotally connected with a driving rod, the mechanical latch is provided at the front end of the driving rod, the bottom of the pressing surface cover is connected to the front end of the driving rod through a connecting sleeve, the tail end of the driving rod is inserted into the driving pressure groove and is used to drive the exhaust retaining member to swing, the groove includes a first slide and a second slide located at the end of the first slide and connected to the first slide, the front end of the first slide is lower than the surface of the exhaust retaining member to form a first check surface, the end of the first slide is higher than the starting end of the second slide to form a second check surface, the end of the second slide is smoothly guided to the normal abutment position, and the exhaust retaining member is provided with a third reset member.

[0012] As a further improvement of the above technical solution, the main unit is provided with a track located at the upper and / or lower end of the opening of the bubble water chamber, the opening and closing door is installed up and down on the track and can open and close the bubble water chamber laterally along the track, and the protective door track is inserted into the track and can move laterally along the track.

[0013] As a further improvement of the above technical solution, an opening and closing door bracket is provided on the main unit, and the opening and closing door bracket is connected to the upper end or lower end of the opening and closing door. The end of the opening and closing door bracket is pivotally connected to the main unit so that the opening and closing door can move laterally on the main unit.

[0014] As a further improvement of the above technical solution, a reset torsion spring connected to the opening and closing door bracket is provided in the main unit, a gear groove is provided on the opening and closing door bracket, a rack is provided on the gear groove, and a one-way damping gear meshing with the rack is provided on the main unit.

[0015] The beneficial effects of the present invention are as follows: when in use, the opening and closing door is opened, the bubble water bottle is placed in the bubble water cavity and installed on the bottle mouth connection position, the air nozzle is inserted into the bubble water bottle, and then the opening and closing door is closed, and then the inflation preparation work is carried out. The bubble water cavity and the opening and closing door play a protective role, preventing the bubble water bottle from exploding, collapsing, etc. caused by excessive pressure in the bubble water bottle, which directly affects the user, and is safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is one of the structural diagrams of the preferred embodiment of the present invention;

[0018] Figure 2 for Figure 1 AA direction cross-sectional structure schematic diagram;

[0019] Figure 3 This is a second structural diagram of a preferred embodiment of the present invention;

[0020] Figure 4 for Figure 3 BB direction cross-sectional structure schematic diagram;

[0021] Figure 5 This is a schematic structural diagram of a preferred embodiment of the present invention with part of the housing hidden;

[0022] Figure 6 For Figure 5 The schematic diagram of the structure after the track is hidden;

[0023] Figure 7 It is a structural diagram of the combination of the opening and closing door and the opening and closing door bracket;

[0024] Figure 8 Schematic diagram of the structure of the exhaust retainer. DETAILED DESCRIPTION

[0025] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it should not be understood as a limitation on the scope of protection of the present invention.

[0026] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0027] In the description of the present invention, the meaning of "several" is one or more, the meaning of "many" is more than two, and the meanings of "greater than", "less than", "exceed" and "exceed" are not inclusive of the number itself, while the meanings of "above", "below", "within" and "include" are inclusive of the number itself. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features. In the description of the present invention, unless otherwise clearly defined, the terms "set", "install", "connect" and "connect" should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0028] Reference Figures 1 to 7 , a sparkling water machine with a safety door, comprising:

[0029] The main unit 10 is provided with a bubble water chamber 11 in which a bubble water bottle is movably mounted. The top of the bubble water chamber 11 is provided with a bottle mouth connection 12 and a gas nozzle 14 located on the bottle mouth connection 12. The bottle mouth connection 12 refers to the entire portion of the main unit 10 that connects to the bottle mouth of the bubble water bottle and communicates with the bubble water bottle. The main unit 10 is provided with a main mounting bracket 13. An air intake assembly 50 and a gas circuit body 40 connected to the gas nozzle 14 are mounted on the main mounting bracket 13. The air intake assembly 50 is provided with a connection for a carbon dioxide gas bottle and communicates with the gas circuit body 40. The gas circuit body 40 is provided with an air intake structure and an exhaust structure. A door 20 for opening and closing the bubble water chamber 11 is provided at the front end of the bubble water chamber 11.

[0030] When in use, open the opening and closing door 20, put the bubble water bottle into the bubble water chamber 11 and install it on the bottle mouth connection position 12, insert the air nozzle 14 into the bubble water bottle, and then close the opening and closing door 20, and then perform the inflation preparation work. The bubble water chamber 11 and the opening and closing door 20 play a protective role, preventing the bubble water bottle from exploding or collapsing due to excessive pressure in the bubble water bottle, which directly affects the user, making it safer.

[0031] For further optimization, the host 10 is preferably provided with a track 30 located at the upper and / or lower end of the opening of the bubble water chamber 11, and the opening and closing door 20 is installed up and down on the track 30 and can open and close the bubble water chamber 11 laterally along the track 30. Preferably, the host 10 is provided with a hidden cavity for the opening and closing door 20 for storing the opening and closing door 20 when the opening and closing door 20 is opened. When in use, the opening and closing door 20 can be pushed laterally to open and close the bubble water chamber 11, saving space.

[0032] For further optimization, it is preferred that a protective door rail 22 is installed on the upper end of the opening and closing door 20, and the protective door rail 22 is inserted into the track 30 and can move laterally along the track 30. The opening and closing door 20 and the protective door rail 22 can be combined into one body, or they can form two parts and then be assembled together.

[0033] Further optimization, in order to prevent the user from performing the gas filling work when the opening and closing door 20 is not closed properly, which may lead to danger, it is preferred that a limiting slot 221 is provided on the protective door rail 22, and a notch is provided on the track 30 to match the limiting slot 221. A pneumatic lock 51 is fixedly provided in the host 10, and the pneumatic lock 51 includes a lock cavity 511. The front end of the lock cavity 511 is provided with an air inlet channel 512 extending to the bottle mouth connection position 12 and used to communicate with the bubble water bottle. The rear end of the lock cavity 511 is provided with an air outlet 514 facing the notch, and a lock body 513 is provided in the lock cavity 511. The front end of the lock body 513 is provided with a first sealing member for closing the air duct 512, and the rear end of the lock body 513 is provided with a second sealing member for closing the air outlet 514. The lock cavity 511 is provided with a first reset member 516 connected to the lock body 513 and driving the lock body 513 to move toward the front end of the lock cavity 511. The rear end of the lock body 513 is provided with a locking rod 515 inserted in the exhaust hole and extending to the outside of the pneumatic lock 51. The locking rod 515 is opposite to the notch. When the rear end of the lock body 513 closes the air outlet 514, the locking rod 515 is inserted in the limiting slot 221. When the air filling mode is turned on, the air pressure in the bubble water bottle is fed back to the air inlet channel 512, thereby pushing the first sealing member and the lock body 513 to move in the lock cavity 511. If the opening and closing door 20 is fully closed, the locking rod 515 is inserted into the limiting slot 221 on the protective door rail 22 along the gap, so that the second sealing member at the rear end of the lock body 513 closes the air outlet 514. At this time, the bubble water bottle can be pressurized and inflated normally. If the opening and closing door 20 is not fully closed, the limiting slot 221 has not moved to the gap, and the end of the locking rod 515 can only abut against the protective door rail 22. On the surface, at this time, the movement distance of the lock body 513 is limited, which makes the second seal unable to close the air outlet 514, so that the gas rushed into the bubble water bottle will be discharged along the air inlet channel 512, the lock cavity 511 and the air outlet 514. A high-pressure environment cannot be formed in the bubble water bottle, making the overall safety more secure. The notch can also be not set, so that the inner side of the protective door track 22 is directly opposite to the air outlet 514. For example, the track 30 is directly arranged horizontally on the inner wall of the host 10, so that the front end of the protective door track 22 is inserted in the track 30 and the rear side of the protective door track 22 is completely exposed in the host 10.

[0034] For further optimization, the air intake assembly 50 preferably includes an air intake rod for opening and closing the carbon dioxide gas cylinder. The main unit 10 is provided with an air intake pressure rod 70 located at the upper end of the air intake rod and used to press the air intake rod downward. The main unit 10 is provided with a driving unit on the surface of the main unit 10 for driving the air intake pressure rod 70 downward. The driving unit presses the air intake pressure rod 70 to press the air intake rod downward, thereby inflating the carbon dioxide gas cylinder. Further optimization is performed on this basis, and it is preferred that the track 30 is arranged at the upper end of the opening of the bubble water chamber 11, and a limiting portion is provided on the air inlet pressure rod 70. An air filling limit block 60 is pivotally connected in the main unit 10, and the air filling limit block 60 includes a driving end 61 at the front end and a limiting end 62 at the rear end. The limiting end 62 moves in and out to the bottom of the limiting portion under the swinging action of the driving end 61, and the driving end 61 is located on the moving path of the protective door rail 22 and at least partially overlaps with the protective door rail 22 in height. A driving guide surface is provided at the driving end 61 and / or the end of the protective door rail 22. When the protective door rail 22 moves along the track 30, it abuts against the driving end 61 and drives the driving end 61 to swing upward through the driving guide surface. A second reset component is provided on the air filling limit block 60 to drive the driving end 61 to swing downward, and a limiting locking device is also provided in the main unit 10 to limit the swinging amplitude of the air filling limit block 60. In this state, when the opening and closing door 20 is opened, the protective door rail 22 moves to abut the driving end 61 of the air filling limit block 60 and lifts it. At this time, the air filling limit block 60 swings, and the limit end 62 undergoes partial lateral displacement in the horizontal space, thereby moving to the lower end of the limit part. At this time, when the user presses the air intake pressure rod 70, the limit end 62 abuts against the lower end of the air intake pressure rod 70, so that the air intake pressure rod 70 cannot be pressed down, thereby ensuring that the air filling operation cannot be performed when the opening and closing door 20 is opened. Preferably, the limit part is a limit plate 71 independently arranged on the air intake pressure rod 70.

[0035] For further optimization, it is preferred that the limit locking device is a limit plate 63 arranged below the rear end of the gas filling limit block 60 and can abut against the surface of the main mounting bracket 13. The limit locking device can also be a supporting limit column located below the limit part, thereby limiting the swing amplitude of the limit part.

[0036] For further optimization, it is preferred that the host 10 is provided with a door opening and closing bracket 90, the door opening and closing bracket 90 is connected to the upper end or the lower end of the door opening and closing door 20, and the end of the door opening and closing bracket 90 is pivotally connected to the host 10 so that the door opening and closing door 20 moves laterally on the host 10. In order to enable the door body to open automatically, it is preferred that the host 10 is provided with a reset torsion spring 91 connected to the door opening and closing bracket 90, and the reset torsion spring 91 drives the door opening and closing bracket 90 to rotate, thereby driving the door opening and closing door 20 to move, so that the door opening and closing door 20 is in an open state under normal conditions. It is preferred that the door opening and closing bracket 90 is provided at the bottom of the host 10. The above-mentioned track 30 can also be omitted, and the movement path of the door opening and closing door 20 can be directly limited by using two sets of upper and lower door opening and closing brackets 90.

[0037] For further optimization, it is preferred that a gear slot 92 is provided on the opening and closing door bracket 90, a rack is provided on the gear slot 92, and a one-way damping gear 93 meshing with the rack is provided on the main unit 10. Through the cooperation of the one-way damping gear 93 and the gear slot 92, the opening and closing door 20 is damped and buffered when it is opened, thereby slowing down the opening speed of the opening and closing door 20 and reducing the impact effect generated when the opening and closing door 20 is opened. Preferably, a buffering soft rubber pad for contacting the opening and closing door 20 is provided on the open end surface of the bubble water chamber 11 and the inner side of the hidden cavity of the opening and closing door 20.

[0038] For further optimization, it is preferred that a lock 222 is provided on the protection door rail 22, and a mechanical latch 81 is provided in the host 10, which is located on the moving path of the protection door rail 22 and is used to be engaged with the lock 222, and a second guide surface is provided on the mechanical latch 81, and an unlocking device is provided on the host 10 to drive the mechanical latch 81 to disengage from the lock 222. When the opening and closing door 20 is closed, the mechanical latch 81 moves along the surface of the protection door rail 22 and falls into the lock 222, thereby locking the opening and closing door 20. When the opening and closing door 20 needs to be opened, the mechanical latch 81 is lifted by the unlocking device and moved to disengage from the lock 222. The dual protection of the pneumatic lock 51 and the mechanical latch 81 prevents the opening and closing door 20 from being opened manually in the bubble water preparation state.

[0039] Further optimization, preferably, the unlocking device is a pressing surface cover 15 arranged on the top of the main body 10, the middle part of the pressing surface cover 15 is pivotally connected to the main body 10, the exhaust structure includes an exhaust channel arranged on the gas circuit main body 40 and an exhaust valve located in the exhaust channel, the exhaust channel includes a valve hole extending to the bottle mouth connecting position 12 and a valve cavity located at the rear end of the valve hole, the rear end of the valve cavity is provided with an exhaust hole connected to the rear end of the gas circuit main body 40, the exhaust valve is located in the valve cavity, and the exhaust valve includes a valve body and a sealing plug arranged at the front end of the valve body for sealing the valve hole, the rear end of the valve body is provided with a valve stem passing through the exhaust hole and extending to the outside of the gas circuit main body 40, the main body 10 is pivotally connected to an exhaust retainer 82 located on one side of the gas circuit main body 40 and facing the exhaust hole, the surface of the exhaust retainer 82 is provided with a normal abutment position 822 and a sink groove located on one side of the normal abutment position 822, and the end of the valve stem abuts against the normal abutment The cam 821 is provided on the support 822 so as to be movable relative to the exhaust retaining member 82. The exhaust retaining member 82 is provided with a driving pressure groove 821 which is inclined. A driving rod 80 is pivotally connected to the main machine 10. The mechanical latch 81 is provided at the front end of the driving rod 80. The bottom of the pressing surface cover 15 is connected to the front end of the driving rod 80 through a connecting sleeve 16. The tail end of the driving rod 80 is inserted into the driving pressure groove 821 and is used to drive the exhaust retaining member 82 to swing. The sinking groove includes a first slide 823 and a second slide 824 located at the end of the first slide 823 and connected to the first slide 823. The front end of the first slide 823 is lower than the surface of the exhaust retaining member 82 to form a first check surface. The end of the first slide 823 is higher than the starting end of the second slide 824 to form a second check surface. The end of the second slide 824 is smoothly guided to the normal abutment position 822. A third reset member is provided on the exhaust retaining member 82. Through this method, during the exhaust process, the pressing cover 15 is pressed to lift the front end of the driving rod 80, so that the mechanical latch 81 is disengaged from the lock mouth 222, and at the same time, the rear end of the driving rod 80 drives the exhaust retaining member 82 to swing, thereby driving the valve stem to move in the valve cavity to open the valve hole, and then the high-pressure gas in the bubble water bottle is discharged along the valve hole, valve cavity, and exhaust hole. When the air pressure in the bubble water bottle drops to the critical point, the lock body 513 on the air pressure lock 51 is reset under the action of the first reset member 516, and the opening and closing door 20 is no longer fixed. Then, the opening and closing door 20 is directly opened under the action of the reset torsion spring 91. In this solution, the main unit 10 is preferably cylindrical, and the opening and closing door 20 is arc-shaped.

[0040] In other embodiments, the unlocking device may also be a mechanical lever that synchronously drives the mechanical door valve to move.

[0041] Preferably, the air intake pressure rod 70 is also located at the bottom of the pressing surface cover 15, so that when the two sides of the pressing surface cover 15 are pressed, the air intake pressure rod 70 can be driven to swing to intake air and the driving rod 80 can be driven to swing to exhaust air.

[0042] In this solution, the first restoring member 516, the second restoring member, and the third restoring member are preferably springs. In other embodiments, they can also be formed by elastic columns, two sets of repelling magnets, or other methods.

[0043] In other embodiments, the opening and closing door 20 is pivotally connected to the side of the bubble water chamber 11 so as to swing to open and close the bubble water chamber 11 .

[0044] The opening and closing door 20 is preferably provided with a handle 21 so that the opening and closing door 20 can be easily operated.

[0045] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's description and drawings under the inventive concept 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 with a safety door, characterized in that: include: A main unit (10) is provided with a bubble water chamber (11) in which a bubble water bottle is movably mounted, a bottle mouth connection position (12) and a gas nozzle (14) located on the bottle mouth connection position (12) are provided at the top of the bubble water chamber (11), a main body mounting bracket (13) is provided in the main unit (10), an air intake assembly (50) and an air circuit main body (40) connected to the gas nozzle (14) are provided on the main body mounting bracket (13), a carbon dioxide gas bottle connection position is provided on the air intake assembly (50), the air intake assembly (50) is connected to the air circuit main body (40), an air intake structure and an exhaust structure are provided on the air circuit main body (40), and an opening and closing door (20) for opening and closing the bubble water chamber (11) is provided at the front end of the bubble water chamber (11); A protective door rail (22) located in the main unit (10) is installed at the upper end of the opening and closing door (20). The opening and closing door (20) moves laterally relative to the main unit (10) to open and close the opening and closing door (20). A limiting slot (221) is provided on the protective door rail (22). A pneumatic lock (51) is fixedly provided in the main unit (10). The pneumatic lock (51) comprises a lock cavity (511). The front end of the lock cavity (511) is provided with an air inlet channel (512) extending to the bottle mouth connection position (12) and used to communicate with the bubble water bottle. The rear end of the lock cavity (511) is provided with an air outlet (514). A lock body (513) is provided in the lock cavity (511). The front end of the lock body (513) is provided with a first sealing member for sealing the air inlet channel (512). The rear end of the lock body (513) is provided with a sealing member for sealing the air outlet (514). 4) a second sealing member, a first reset member (516) connected to the lock body (513) and driving the lock body (513) to move toward the front end of the lock cavity (511) is provided in the lock cavity (511), a lock rod (515) inserted into the exhaust hole and extending to the outside of the pneumatic lock (51) is provided at the rear end of the lock body (513), when the rear end of the lock body (513) closes the exhaust hole (514), the lock rod (515) is inserted into the limiting slot (221); a lock port (222) is provided on the protection door rail (22), a mechanical door latch (81) located on the moving path of the protection door rail (22) and used to be clamped in the lock port (222) is provided in the host (10), a second guide surface is provided on the mechanical door latch (81), and an unlocking device for driving the mechanical door latch (81) to disengage from the lock port (222) is provided on the host (10).

2. The sparkling water machine with a safety door according to claim 1, characterized in that: The air intake assembly (50) includes an air intake rod for opening and closing a carbon dioxide gas cylinder. An air intake pressure rod (70) located at the upper end of the air intake rod and used to press the air intake rod downward is provided in the main unit (10). A driving portion for driving the air intake pressure rod (70) to press downward is provided on the surface of the main unit (10).

3. The sparkling water machine with a safety door according to claim 2, characterized in that: A limiting portion is provided on the air inlet pressure rod (70), and an air filling limiting block (60) is pivotally connected in the main unit (10). The air filling limiting block (60) includes a driving end (61) at the front end and a limiting end (62) at the rear end. The limiting end (62) moves in and out to the bottom of the limiting portion under the swinging action of the driving end (61). The driving end (61) is located on the moving path of the protection door rail (22) and at least partially overlaps with the protection door rail (22) in height. A driving guide surface is provided at the end of the driving end (61) and / or the protection door rail (22). When the protection door rail (22) moves, it abuts against the driving end (61) and drives the driving end (61) to swing upward through the driving guide surface. A second reset component is provided on the air filling limiting block (60) for driving the driving end (61) to swing downward. A limiting locking device for limiting the swinging amplitude of the air filling limiting block (60) is also provided in the main unit (10).

4. The sparkling water machine with a safety door according to claim 1, characterized in that: The unlocking device is a pressing surface cover (15) arranged on the top of the main unit (10), the middle part of the pressing surface cover (15) is pivotally connected to the main unit (10), the exhaust structure includes an exhaust channel arranged on the gas circuit main body (40) and an exhaust valve located in the exhaust channel, the exhaust channel includes a valve hole extending to the bottle mouth connection position (12) and a valve cavity located at the rear end of the valve hole, the rear end of the valve cavity is provided with an exhaust hole connected to the rear end of the gas circuit main body (40), the exhaust valve is located in the valve cavity, and the exhaust valve includes a valve The main body (10) is provided with a valve stem and a sealing plug provided at the front end of the valve body for sealing the valve hole. The rear end of the valve body is provided with a valve stem that passes through the exhaust hole and extends to the outside of the gas path main body (40). The main body (10) is pivotally connected with an exhaust retainer (82) located on one side of the gas path main body (40) and facing the exhaust hole. The surface of the exhaust retainer (82) is provided with a normal abutment position (822) and a sink groove located on one side of the normal abutment position (822). The end of the valve stem abuts on the normal abutment position (822) and can be in contact with the exhaust. The holder (82) moves relatively, a driving pressure groove (821) is obliquely provided on the exhaust holder (82), a driving rod (80) is pivotally connected in the host (10), the mechanical latch (81) is provided at the front end of the driving rod (80), the bottom of the pressing surface cover (15) is connected to the front end of the driving rod (80) through a connecting sleeve (16), the tail end of the driving rod (80) is inserted into the driving pressure groove (821) and is used to drive the exhaust holder (82) to swing, the sinking groove includes The invention comprises a first slideway (823) and a second slideway (824) located at the end of the first slideway (823) and connected to the first slideway (823), wherein the front end of the first slideway (823) is lower than the surface of the exhaust retaining member (82) to form a first check surface, the end of the first slideway (823) is higher than the starting end of the second slideway (824) to form a second check surface, and the end of the second slideway (824) is smoothly guided to the normal abutment position (822), and a third reset member is provided on the exhaust retaining member (82).

5. The sparkling water machine with a safety door according to claim 1, characterized in that: The host (10) is provided with a track (30) located at the upper end and / or the lower end of the opening of the bubble water chamber (11); the opening and closing door (20) is mounted on the track (30) up and down and can open and close the bubble water chamber (11) laterally along the track (30); and the protective door track (22) is inserted into the track (30) and can move laterally along the track (30).

6. A sparkling water machine with a safety door as claimed in claim 1, 2, 3, 4 or 5, characterized in that: The host (10) is provided with a door opening and closing bracket (90), the door opening and closing bracket (90) is connected to the upper end or the lower end of the door opening and closing (20), and the end of the door opening and closing bracket (90) is pivotally connected to the host (10) so that the door opening and closing (20) can move laterally on the host (10).

7. The sparkling water machine with a safety door according to claim 6, characterized in that: The host (10) is provided with a return torsion spring (91) connected to the opening and closing door bracket (90), the opening and closing door bracket (90) is provided with a gear groove (92), the gear groove (92) is provided with a rack, and the host (10) is provided with a one-way damping gear (93) meshing with the rack.

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