Bottle mouth fixing structure of sparkling water machine and sparkling water machine

Abstract

The present invention relates to a bottle mouth fixing structure of a bubble water machine and a bubble water machine. The bottle mouth fixing structure of the bubble water machine includes a fixing seat, a nozzle and a sealing structure. The fixing seat includes an exhaust hole, and a first sealing bevel is provided on the hole wall of the exhaust hole; the nozzle is connected to the fixing seat, and a first through hole communicating with the exhaust hole is provided on the nozzle, and a second sealing bevel is provided on the hole wall of the first through hole near the fixing seat; the sealing structure is arranged in the first through hole, including a pressing block and an elastic member, and a second through hole communicating with the exhaust hole is provided inside the pressing block, and a third sealing bevel respectively matched with the first sealing bevel and the second sealing bevel is provided on the outer peripheral wall of the pressing block; the elastic member is connected to the pressing block and is suitable for providing an elastic force toward the fixing seat for the pressing block, and a third through hole communicating with the second through hole is provided inside the elastic member. The bottle mouth fixing structure of the bubble water machine provided by the present invention, the sealing structure ensures that the gas can only be discharged from the exhaust port.

Description

Technical Field

[0001] The invention relates to the technical field of household appliances, and in particular to a bottle mouth fixing structure of a bubble water machine and the bubble water machine. Background Art

[0002] Sparkling water has the health benefits of helping to regulate the body's acid-base balance and enhancing gastrointestinal vitality. Natural sparkling water is relatively rare, and currently sparkling water is basically artificially produced by sparkling water machines.

[0003] The bottle mouth fixing structure of the existing sparkling water machine is a core component where the air path intersects. In order to prevent air leakage, it is mostly designed as an integrated structure. However, the integrated bottle mouth fixing structure makes the nozzle tube difficult to clean and prone to clogging, which in turn causes the sparkling water machine to malfunction.

[0004] The applicant has developed a dual-purpose sparkling water machine, which adopts a split bottle mouth fixing structure, which can be combined with a portable component to form a portable sparkling water machine, achieving dual purposes in one machine, greatly increasing practicality. The split bottle mouth fixing structure is not only convenient for cleaning the nozzle tube, but also can achieve dual purposes in one machine, but it is difficult to ensure its sealing and is prone to leakage. Summary of the invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defect of poor sealing of the split bottle mouth fixing structure in the prior art, thereby providing a bottle mouth fixing structure of a sparkling water machine and a sparkling water machine with good sealing.

[0006] In order to solve the above technical problems, the present invention provides a bottle mouth fixing structure of a sparkling water machine, including a fixing seat, a nozzle and a sealing structure, the fixing seat includes an exhaust hole, and a first sealing bevel is provided on the hole wall of the exhaust hole; the nozzle is connected to the fixing seat, and a first through hole communicating with the exhaust hole is provided on the nozzle, and a second sealing bevel is provided on the hole wall of the first through hole near the fixing seat; the sealing structure is arranged in the first through hole, including a pressing block and an elastic member, a second through hole communicating with the exhaust hole is provided inside the pressing block, and a third sealing bevel respectively matched with the first sealing bevel and the second sealing bevel is provided on the outer peripheral wall of the pressing block; the elastic member is connected to the pressing block, and is suitable for providing an elastic force for the pressing block toward the fixing seat, and the third through hole communicating with the second through hole is provided inside the elastic member.

[0007] The bottle mouth fixing structure of the bubble water machine provided by the present invention, the sealing structure also includes a connecting block connected to the first through hole, the elastic member abuts between the pressing block and the connecting block, and the interior of the connecting block is provided with a fourth through hole which is connected to the second through hole and the third through hole.

[0008] The bottle mouth fixing structure of the sparkling water machine provided by the present invention has an elastic member which is a spring.

[0009] The bottle mouth fixing structure of the bubble water machine provided by the present invention is characterized in that a first convex tube is provided on the end surface of the pressing block away from the first sealing inclined surface, and the first convex tube is communicated with the second through hole; a second convex tube is provided on the end surface of the connecting block facing the pressing block, and the second convex tube is communicated with the fourth through hole; one end of the spring is sleeved on the outside of the first convex tube and abuts on the end surface of the pressing block provided with the first convex tube, and the other end is sleeved on the outside of the second convex tube and abuts on the end surface of the connecting block provided with the second convex tube.

[0010] In the bottle mouth fixing structure of the bubble water machine provided by the present invention, the connecting block is connected to the first through hole via threads.

[0011] In the bottle mouth fixing structure of the sparkling water machine provided by the present invention, the inner radial direction of the first sealing slope gradually decreases towards the top of the fixing seat; the inner radial direction of the second sealing slope gradually decreases towards the direction away from the elastic member.

[0012] The bottle mouth fixing structure of the bubble water machine provided by the present invention also includes a sealing gasket, which is arranged in the exhaust hole and abuts between the pressing block and the exhaust hole. The interior of the sealing gasket is provided with a fifth through hole that is connected to the second through hole and the exhaust hole.

[0013] The bottle mouth fixing structure of the bubble water machine provided by the present invention has an annular mounting groove on the hole wall of the exhaust hole, a sealing gasket is arranged in the annular mounting groove, and one end of a groove wall of the annular mounting groove located at the groove opening is connected to an end of the first sealing slope away from the nozzle.

[0014] The bottle mouth fixing structure of the sparkling water machine provided by the present invention further includes an air inlet on the fixing seat, the nozzle includes a connecting part connected to the fixing seat, and a nozzle part communicated with the air inlet, and the first through hole is arranged on the connecting part.

[0015] The bottle mouth fixing structure of the bubble water machine provided by the present invention also includes a bottle mouth joint, which is suitable for connecting with a water bottle. The bottle mouth joint and the fixing seat are detachably connected. The connecting part is arranged between the top end of the bottle mouth joint and the fixing seat, and is connected to the fixing seat through the bottle mouth joint.

[0016] The present invention also provides a sparkling water machine, comprising the bottle mouth fixing structure of the sparkling water machine.

[0017] The technical solution of the present invention has the following advantages:

[0018] 1. The bottle mouth fixing structure of the bubble water machine provided by the present invention comprises a fixing seat, a nozzle and a sealing structure, the fixing seat comprises an exhaust hole, and a first sealing inclined surface is provided on the hole wall of the exhaust hole; the nozzle is connected to the fixing seat, and a first through hole communicating with the exhaust hole is provided on the nozzle, and a second sealing inclined surface is provided on the hole wall of the first through hole near the fixing seat; the sealing structure is arranged in the first through hole, and comprises a pressing block and an elastic member, a second through hole communicating with the exhaust hole is provided inside the pressing block, and a third sealing inclined surface respectively matched with the first sealing inclined surface and the second sealing inclined surface is provided on the outer peripheral wall of the pressing block; the elastic member is connected to the pressing block and is suitable for providing an elastic force for the pressing block toward the fixing seat, and a third through hole communicating with the second through hole is provided inside the elastic member.

[0019] Under the elastic force of the elastic member, part of the pressing block is squeezed into the first through hole, and part of it is squeezed into the exhaust hole. The third sealing bevel on the pressing block is tightly fitted with the first sealing bevel and the second sealing bevel to achieve surface sealing and always maintain a good sealing effect, ensuring that the gas can only be discharged from the exhaust port and will not overflow through the gap between the nozzle and the fixed seat. A second through hole is provided inside the pressing block, and a third through hole is provided inside the elastic member. The gas is discharged through the third through hole, the second through hole and the exhaust hole. The pressing block and the elastic member will not be unable to discharge the gas because they are set in the first through hole.

[0020] 2. The bottle mouth fixing structure of the sparkling water machine provided by the present invention, the sealing structure also includes a connecting block connected to the first through hole, the elastic member abuts between the pressing block and the connecting block, and the interior of the connecting block is provided with a fourth through hole which is connected to the second through hole and the third through hole.

[0021] A connecting block is provided to facilitate fixing the pressing block and the elastic member to ensure that the elastic member always provides elastic force for the pressing block. A fourth through hole is provided on the connecting block, and the gas is discharged through the fourth through hole, the third through hole, the second through hole and the exhaust hole, and the gas will not be unable to be discharged through the exhaust hole due to blocking the first through hole.

[0022] 3. The bottle mouth fixing structure of the bubble water machine provided by the present invention also includes a sealing gasket, which is arranged in the exhaust hole and abuts between the pressing block and the exhaust hole. The interior of the sealing gasket is provided with a fifth through hole that is connected to the second through hole and the exhaust hole.

[0023] The pressing block squeezes the sealing pad to further enhance the sealing effect between the nozzle and the fixing seat. A fifth through hole is arranged inside the sealing pad so as not to block the exhaust hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a cross-sectional view of the bottle mouth fixing structure of the sparkling water machine of the present invention;

[0026] Figure 2 for Figure 2 A magnified view of part A;

[0027] Figure 3 An exploded view of the installation of the sealing structure of the present invention;

[0028] Figure 4 is a cross-sectional view of the sealing structure of the present invention;

[0029] Figure 5 is a schematic diagram of the sealing structure of the present invention;

[0030] Figure 6 is a cross-sectional view of a fixing seat of the present invention;

[0031] Figure 7 for Figure 6 A magnified view of part B;

[0032] Figure 8 A schematic diagram of a nozzle of the present invention;

[0033] Fig. 9 is a schematic diagram of a bubble water machine of the present invention;

[0034] Fig.10 is a cross-sectional view of a (partial) bubble water machine of the present invention;

[0035] Fig.11 This is an exploded view of the installation of the bubble water machine (part) of the present invention.

[0036] Description of reference numerals:

[0037] 1-fixed seat; 11-exhaust hole; 111-first sealing slope; 112-annular mounting groove; 12-air inlet hole; 2-nozzle; 21-first through hole; 211-second sealing slope; 22-connecting part; 23-nozzle part; 3-sealing structure; 31-pressing block; 311-third sealing slope; 312-second through hole; 313-first convex tube; 32-elastic member; 321-third through hole; 33-connecting block; 331-second convex tube; 332-fourth through hole; 4-sealing pad; 41-fifth through hole; 5-bottle mouth joint; 6-water bottle; 7-machine body. DETAILED DESCRIPTION

[0038] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are 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, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0042] Combination Figures 1 to 11As shown, the bottle mouth fixing structure of the sparkling water machine provided in this embodiment is used to connect the water bottle 6 to the body 7 of the sparkling water machine and communicate with the gas cylinder in the body 7, or to connect the water bottle 6 to a portable inflatable structure. The bottle mouth fixing structure of the bubble water machine includes a fixing seat 1, a nozzle 2 and a sealing structure 3. The fixing seat 1 includes an exhaust hole 11, and a first sealing bevel 111 is provided on the hole wall of the exhaust hole 11; the nozzle 2 is connected to the fixing seat 1, and a first through hole 21 communicating with the exhaust hole 11 is provided on the nozzle 2, and a second sealing bevel 211 is provided on the hole wall of the first through hole 21 near the fixing seat 1; the sealing structure 3 is arranged in the first through hole 21, and includes a pressing block 31 and an elastic member 32, and a second through hole 312 communicating with the exhaust hole 11 is provided inside the pressing block 31, and a third sealing bevel 311 respectively matched with the first sealing bevel 111 and the second sealing bevel 211 is provided on the outer peripheral wall of the pressing block 31; the elastic member 32 is connected to the pressing block 31, and is suitable for providing an elastic force for the pressing block 31 toward the fixing seat 1, and a third through hole 321 communicating with the second through hole 312 is provided inside the elastic member 32.

[0043] Under the elastic force of the elastic member 32, the pressing block 31 is partially squeezed into the first through hole 21 and partially squeezed into the exhaust hole 11. The third sealing bevel 311 on the pressing block 31 is tightly fitted with the first sealing bevel 111 and the second sealing bevel 211 to achieve surface sealing and always maintain a good sealing effect, ensuring that the gas can only be discharged from the exhaust port and will not overflow through the gap between the nozzle 2 and the fixed seat 1. A second through hole 312 is provided inside the pressing block 31, and a third through hole 321 is provided inside the elastic member 32. The gas is discharged through the third through hole 321, the second through hole 312 and the exhaust hole 11. The pressing block 31 and the elastic member 32 will not be unable to discharge the gas because they are set in the first through hole 21. Under the action of the high air pressure in the water bottle, the pressing block also achieves a tight fit with the first through hole and the exhaust hole to achieve a better sealing effect.

[0044] The bottle mouth fixing structure of the bubble water machine is detachably connected to the bubble water machine, which is convenient for cleaning and maintenance of the bottle mouth fixing structure of the bubble water machine, so that liquid is not likely to remain on the bottle mouth fixing structure of the bubble water machine, and bacteria are not likely to grow.

[0045] The water bottle 6 in this embodiment is a container bottle, which can be used to hold water or beverages such as juice.

[0046] In this embodiment, the sealing structure 3 also includes a connecting block 33 connected to the first through hole 21, the elastic member 32 abuts between the pressing block 31 and the connecting block 33, and a fourth through hole 332 communicating with the second through hole 312 and the third through hole 321 is provided inside the connecting block 33.

[0047] The connection block 33 is provided to fix the pressing block 31 and the elastic member 32, so as to ensure that the elastic member 32 always provides elastic force for the pressing block 31. The connection block 33 is provided with a fourth through hole 332, and the gas is discharged through the fourth through hole 332, the third through hole 321, the second through hole 312 and the exhaust hole 11, so that the gas will not be unable to be discharged through the exhaust hole 11 due to the blocking of the first through hole 21.

[0048] As a convertible embodiment, the sealing structure 3 may be arranged in the exhaust hole 11, including a pressing block 31 and an elastic member 32, wherein a second through hole 312 communicating with the first through hole 21 is arranged inside the pressing block 31, and a third sealing inclined surface 311 cooperating with the first sealing inclined surface 111 and the second sealing inclined surface 211 is arranged on the outer peripheral wall of the pressing block 31; the elastic member 32 is connected to the pressing block 31 and is suitable for providing an elastic force for the pressing block 31 toward the nozzle 2, and a third through hole 321 communicating with the second through hole 312 is arranged inside the elastic member 32. The connecting block 33 is connected to the exhaust hole 11.

[0049] In this embodiment, the elastic member 32 is a spring, which has a simple structure and is easy to connect.

[0050] In this embodiment, a first convex tube 313 is provided on the end surface of the pressing block 31 away from the first sealing inclined surface 111, and the first convex tube 313 is communicated with the second through hole 312; a second convex tube 331 is provided on the end surface of the connecting block 33 facing the pressing block 31, and the second convex tube 331 is communicated with the fourth through hole 332; one end of the spring is sleeved on the outside of the first convex tube 313 and abuts on the end surface of the pressing block 31 provided with the first convex tube 313, and the other end is sleeved on the outside of the second convex tube 331 and abuts on the end surface of the connecting block 33 provided with the second convex tube 331.

[0051] The spring is limited by the first convex tube 313 and the second convex tube 331 to prevent the spring from bending and deforming and failing to provide the required elastic force. The first convex tube 313 and the second convex tube 331 will not cause the blockage of the second through hole 312 and the fourth through hole 332 to affect the discharge of gas.

[0052] In this embodiment, the connection block 33 is connected to the first through hole 21 by threads, which is convenient to connect and the position is adjustable.

[0053] As a convertible implementation, the connecting block 33 may be engaged with the first through hole 21 .

[0054] In this embodiment, the inner diameter of the first sealing slope 111 gradually decreases in the direction close to the top of the fixing seat 1; the inner diameter of the second sealing slope 211 gradually decreases in the direction away from the elastic member 32. The first sealing slope 111, the second sealing slope 211 and the third sealing slope 311 are all revolving surfaces, which have a simple structure and are easy to form. The first sealing slope 111, the second sealing slope 211 and the third sealing slope 311 are conical revolving surfaces, which have a self-adjusting sealing effect.

[0055] The bottle mouth fixing structure of the sparkling water machine of this embodiment also includes a sealing gasket 4, which is arranged in the exhaust hole 11 and abuts between the pressing block 31 and the exhaust hole 11. The interior of the sealing gasket 4 is provided with a fifth through hole 41 which is connected to the second through hole 312 and the exhaust hole 11.

[0056] The pressing block 31 presses the sealing gasket 4 to further enhance the sealing effect between the nozzle 2 and the fixing seat 1. A fifth through hole 41 is provided inside the sealing gasket 4 so as not to block the exhaust hole 11.

[0057] In this embodiment, an annular mounting groove 112 is provided on the hole wall of the exhaust hole 11, and the sealing gasket 4 is arranged in the annular mounting groove 112. One end of a groove wall of the annular mounting groove 112 located at the groove opening is connected to an end of the first sealing inclined surface 111 away from the nozzle 2. The sealing gasket 4 is partially arranged in the annular mounting groove 112, and partially sandwiched between the groove wall of the annular mounting groove 112 away from the first sealing inclined surface 111 and the pressing block 31.

[0058] The annular installation groove 112 is used to limit the installation of the sealing gasket 4 and enhance the sealing effect, further preventing the gas from overflowing between the fixing seat 1 and the nozzle 2.

[0059] In this embodiment, the fixing base 1 further includes an air inlet hole 12, the nozzle 2 includes a connecting portion 22 connected to the fixing base 1, and a nozzle portion 23 communicating with the air inlet hole 12, and the first through hole 21 is provided on the connecting portion 22. The sealing structure 3 prevents the gas passing through the exhaust hole 11 from overflowing between the fixing base 1 and the nozzle 2, and prevents the gas passing through the air inlet hole 12 from overflowing between the fixing base 1 and the nozzle 2.

[0060] Specifically, the air inlet 12 is located at the center of the fixing seat 1, and there are two exhaust holes 11, which are distributed near the edge of the fixing seat 1. Preferably, one exhaust hole 11 is connected to the pressure relief valve, and one exhaust hole 11 is connected to the safety valve; or the two exhaust holes 11 are each connected to a pressure relief valve.

[0061] In this embodiment, an air inlet passage suitable for communicating with the air inlet hole 12 is provided in the nozzle portion 23, and a one-way valve is provided in the air inlet passage to prevent the gas entering the water bottle 6 from flowing back through the air inlet hole 12. A sealing convex portion is provided on one end of the fixing seat 1 facing the nozzle 2, and the sealing convex portion is an annular convex portion arranged on the outer periphery of the air inlet hole 12, and the sealing convex portion is suitable for abutting against the one-way valve to prevent the intake air from overflowing through the gap between the fixing seat 1 and the nozzle 2.

[0062] The bottle mouth fixing structure of the bubble water machine in this embodiment also includes a bottle mouth connector 5, which is suitable for connecting with the water bottle 6. The bottle mouth connector 5 is detachably connected with the fixing seat 1. The connecting portion 22 is arranged between the top of the bottle mouth connector 5 and the fixing seat 1, and is connected with the fixing seat 1 through the bottle mouth connector 5. An exhaust channel is formed between the nozzle 2 and the bottle mouth connector 5, and the exhaust hole 11, the first through hole 21 and the exhaust channel are connected.

[0063] In this embodiment, when the water in the water bottle 6 needs to be inflated, the gas enters the nozzle portion 23 through the air inlet hole 12, and enters the water bottle 6 through the one-way valve and the air inlet channel; when exhausting, the gas is discharged through the exhaust channel, the first through hole 21 and the exhaust hole 11. The air intake and exhaust paths of the bottle mouth fixing structure are as follows Figure 1 The direction of the arrow.

[0064] The outer periphery of the bottle mouth joint 5 is provided with a connecting thread which is detachably connected to the fixing seat 1 , and the inner periphery of the bottle mouth joint 5 is provided with a connecting thread which is detachably connected to the bottle mouth of the water bottle 6 .

[0065] This embodiment also provides a bubble water machine, such as Figures 9 to 11 As shown, the bottle mouth fixing structure of the above-mentioned sparkling water machine is included. Fig. 9 As shown, the bottle mouth fixing structure of the bubble water machine is detachably connected to the body 7 of the bubble water machine. Fig.10 and Fig.11 As shown, the bottle mouth fixing structure of the sparkling water machine can be connected to the portable inflation component to form a portable sparkling water machine.

[0066] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A bottle mouth fixing structure of a sparkling water machine, characterized in that: include: The fixing seat (1) comprises an exhaust hole (11), wherein a first sealing inclined surface (111) is provided on a hole wall of the exhaust hole (11); A nozzle (2) connected to the fixing seat (1), the nozzle (2) being provided with a first through hole (21) communicating with the exhaust hole (11), and a second sealing inclined surface (211) being provided on the hole wall of the first through hole (21) at a position close to the fixing seat (1); The sealing structure (3) is arranged in the first through hole (21), comprising a pressing block (31) and an elastic member (32); the interior of the pressing block (31) is provided with a second through hole (312) communicating with the exhaust hole (11); the outer peripheral wall of the pressing block (31) is provided with a third sealing inclined surface (311) respectively cooperating with the first sealing inclined surface (111) and the second sealing inclined surface (211); the elastic member (32) is connected to the pressing block (31) and is suitable for providing the pressing block (31) with a direction toward the exhaust hole (11); The elastic member (32) is provided with a third through hole (321) in communication with the second through hole (312); the sealing structure (3) further comprises a connecting block (33) connected with the first through hole (21); the elastic member (32) abuts between the pressing block (31) and the connecting block (33); the connecting block (33) is provided with a fourth through hole (332) in communication with the second through hole (312) and the third through hole (321).

2. The bottle mouth fixing structure of the sparkling water machine according to claim 1, characterized in that: The elastic member (32) is a spring.

3. The bottle mouth fixing structure of the sparkling water machine according to claim 2, characterized in that: A first convex tube (313) is provided on the end surface of the pressing block (31) away from the first sealing inclined surface (111), and the first convex tube (313) is communicated with the second through hole (312); a second convex tube (331) is provided on the end surface of the connecting block (33) facing the pressing block (31), and the second convex tube (331) is communicated with the fourth through hole (332); one end of the spring is sleeved on the outside of the first convex tube (313) and abuts against the end surface of the pressing block (31) on which the first convex tube (313) is provided, and the other end is sleeved on the outside of the second convex tube (331) and abuts against the end surface of the connecting block (33) on which the second convex tube (331) is provided.

4. The bottle mouth fixing structure of the sparkling water machine according to claim 3, characterized in that: The connection block (33) is connected to the first through hole (21) via threads.

5. The bottle mouth fixing structure of the sparkling water machine according to claim 1, characterized in that: The inner radial direction of the first sealing inclined surface (111) gradually decreases in a direction approaching the top of the fixing seat (1); and the inner radial direction of the second sealing inclined surface (211) gradually decreases in a direction away from the elastic member (32).

6. The bottle mouth fixing structure of the sparkling water machine according to any one of claims 1 to 5, characterized in that: It also comprises a sealing gasket (4) which is arranged in the exhaust hole (11) and abuts against between the pressing block (31) and the exhaust hole (11); a fifth through hole (41) which is in communication with the second through hole (312) and the exhaust hole (11) is provided inside the sealing gasket (4).

7. The bottle mouth fixing structure of the sparkling water machine according to claim 6, characterized in that: An annular mounting groove (112) is provided on the hole wall of the exhaust hole (11), the sealing gasket (4) is arranged in the annular mounting groove (112), and one end of a groove wall of the annular mounting groove (112) located at the groove opening is connected to an end of the first sealing inclined surface (111) away from the nozzle (2).

8. The bottle mouth fixing structure of the sparkling water machine according to any one of claims 1-5 and 7, characterized in that: The fixing seat (1) also includes an air inlet hole (12), the nozzle (2) includes a connecting portion (22) connected to the fixing seat (1), and a nozzle portion (23) communicating with the air inlet hole (12), and the first through hole (21) is arranged on the connecting portion (22).

9. The bottle mouth fixing structure of the sparkling water machine according to claim 8, characterized in that: It also comprises a bottle mouth joint (5) suitable for connecting with a water bottle (6), the bottle mouth joint (5) and the fixing seat (1) being detachably connected, the connecting portion (22) being arranged between the top end of the bottle mouth joint (5) and the fixing seat (1), and being connected with the fixing seat (1) via the bottle mouth joint (5).

10. A sparkling water machine, characterized in that: A bottle mouth fixing structure comprising the sparkling water machine as described in any one of claims 1-9.

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