A bubble water machine with good sealing performance

Abstract

The present invention discloses a bubble water machine with good sealing performance, comprising an air intake base, wherein the air intake base is provided with an air intake channel connecting the inside of a gas bottle and a water bottle, a sealing seat is fixed on the air intake base, the lower part of the sealing seat is placed in the mouth of the water bottle, the outer edge of the sealing seat keeps in contact with the mouth of the water bottle and maintains initial compression sealing; it also comprises a bellows, the lower end of the bellows is fixedly mounted on the air intake base, and the upper end of the bellows is fixedly mounted on an exhaust seat fixedly connected to a body of the bubble water machine; when the water bottle is exhausted, the gas will enter the bellows, and under the action of the air pressure, the side wall of the bellows will expand outward, so that the lower end of the bellows will drive the air intake base and the sealing seat as a whole to further press downward against the inner edge of the mouth of the water bottle.

Description

Technical Field

[0001] The invention relates to the technical field of bubble water machines, and in particular to a bubble water machine with good sealing performance. Background Art

[0002] A sparkling water machine is a machine used to make sparkling water. It mainly uses a gas cylinder filled with compressed carbon dioxide to instantly inject the pressurized carbon dioxide into a water bottle, so that the gas reaches a certain solubility value in liquids such as water or juice.

[0003] In the existing sparkling water machine, such as the publication number CN110985882A, the water bottle is generally connected to the air inlet base through the upper thread. Although this method has good sealing performance, it is troublesome to disassemble and cannot be applied to water bottles of different calibers or different materials. Then the inventor proposes to fix the water bottle sleeve on the outside of the water bottle and connect it to the machine body through the water bottle sleeve. This method does not need to be connected through the mouth of the water bottle, and the disassembly is faster, but the sealing performance requirement is high. The main purpose of the present invention is to solve the sealing requirements of this connection method. Summary of the invention

[0004] The technical solution adopted by the present invention to solve the technical problem is: a bubble water machine with good sealing performance, comprising an air intake base, wherein the air intake base is provided with an air intake channel connecting the inside of the gas bottle and the water bottle, a sealing seat is fixed on the air intake base, the lower part of the sealing seat is placed in the mouth of the water bottle, the outer edge of the sealing seat is kept in contact with the mouth of the water bottle, and the initial compression sealing performance is maintained;

[0005] It also includes a bellows, the lower end of which is fixedly mounted on the air inlet base, and the upper end of which is fixedly mounted on an exhaust seat fixedly connected to the body of the bubble water machine;

[0006] The air inlet base comprises an upper base and a lower base connected to each other by fasteners, the upper base is provided with an air vent which passes through from top to bottom, and the air vent is connected to the inside of the water bottle and the inside of the bellows respectively;

[0007] When the water bottle is vented, the gas will enter the bellows, and the side wall of the bellows will expand outward under the action of the air pressure, so that the lower end of the bellows will drive the air intake base and the sealing seat as a whole downward to further press against the inner edge of the bottle mouth.

[0008] In the above technical solution, further, a T-shaped groove is formed at the connection between the upper base and the lower base, and a T-shaped connecting edge is provided on the upper edge of the sealing seat, and the T-shaped connecting edge is fixed in the T-shaped groove.

[0009] In the above technical solution, further, an exhaust channel communicating with the interior of the bellows is also provided in the exhaust seat, and the exhaust channel is provided with two paths, which are respectively connected to the exhaust valve and the sound valve.

[0010] In the above technical solution, further, the excess gas after the bellows is compressed and expanded will be discharged from the exhaust channel of the exhaust seat, and when the air pressure in the bellows returns to the initial range, the side wall of the bellows will return to the concave shape.

[0011] In the above technical scheme, further, the upper shell of the bubble water machine, the support seat, and the column assembly, the column assembly includes a column sleeve, the upper end of the column sleeve is equipped with an upper connecting cover, and the lower end is equipped with a lower connecting cover; the upper connecting cover includes a first side wall and a first connecting surface, and the lower connecting cover includes a second side wall and a second connecting surface; the first side wall and the second side wall are both attached to the inner wall of the column sleeve and fixed by welding; the first connecting surface and the second connecting surface are both provided with a plurality of process holes; the upper end of the column sleeve is equipped with an upper connecting cover.

[0012] In the above technical solution, further, one end of the support seat is connected to the upper connecting cover, and the other end is used to connect to the water bottle connecting seat; the upper shell covers the support seat, and a positioning cavity is provided at one end of the upper shell close to the column assembly, and a pressure cover is provided in the positioning cavity, and the pressure cover is connected to the support seat and presses the upper shell downward.

[0013] In the above technical solution, further, the process holes are one or more combinations of threaded holes, snap-on holes, wiring holes, and mounting through holes; the process holes on the first connecting surface include a plurality of annularly arranged threaded holes, a plurality of snap-on holes, a wiring hole, and an upper mounting through hole arranged in the central area; the process holes on the second connecting surface include a plurality of annularly arranged threaded holes and a lower mounting through hole arranged in the central area.

[0014] In the above technical solution, further, the upper shell includes a top wall and a downwardly extending annular wall, the annular wall includes a first arc segment, a second arc segment and a straight line segment connecting the two; the first arc segment is longitudinally flush with the outer wall of the column assembly; the outer side of the water bottle connecting seat is provided with a water bottle upper shell, and the second arc segment is longitudinally flush with the outer wall of the mouth of the water bottle upper shell.

[0015] The above technical solution further includes a water bottle cover for covering at least part of the water bottle, wherein the water bottle cover includes an upper cover made of a first material and a lower cover made of a second material, the lower portion of the upper cover is arranged between the water bottle and the lower cover, and the upper cover extends out of the lower cover.

[0016] In the above technical solution, further, the upper sleeve is provided with a step, and the upper edge of the lower sleeve is formed inwardly as a folded edge, and the folded edge is pressed against the step; the lower part of the upper sleeve is provided with a plurality of annularly distributed supporting ribs, and fastening grooves are formed between adjacent supporting ribs, and rubber blocks are provided in the fastening grooves, and the rubber blocks maintain pressure contact with the inner wall of the lower sleeve.

[0017] The beneficial effects of the patent of the present invention are: providing a new water bottle connection method, which can achieve quick disassembly and quick assembly, and realize reliable connection of different materials; on this basis, through the working principle of the internal bellows, the sealing of the water bottle mouth during air intake can be further strengthened, and it is suitable for water bottles with different mouth heights, different mouth sizes and different materials of pistons. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a schematic diagram of the appearance structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the internal structure of the present invention.

[0021] Figure 3 It is a schematic diagram of the internal structure of the present invention from another angle.

[0022] Figure 4 The present invention Figure 2 Enlarged schematic diagram at point A in the middle.

[0023] Figure 5 The present invention Figure 2 Enlarged schematic diagram of point B in the middle.

[0024] Figure 6 The present invention Figure 2 Enlarged schematic diagram at point C in the middle.

[0025] Figure 7 The present invention Figure 3 Enlarged schematic diagram at point D in the middle.

[0026] Figure 8 It is a structural exploded view of the water bottle sleeve and the water bottle connecting seat of the present invention.

[0027] Fig. 9 It is a structural exploded diagram of the column assembly of the present invention.

[0028] Fig.10 It is a schematic diagram of the support base structure of the present invention.

[0029] Fig.11 It is a schematic diagram of the upper shell structure of the present invention.

[0030] Fig.12 It is a structural explosion diagram of the air intake base and the sealing seat of the present invention.

[0031] Fig.13 It is a schematic diagram of the gland structure of the present invention.

[0032] In the figure, 1. a bubble water machine, 2. a shell, 3. a gas cylinder, 31. a gas cylinder connection seat, 32. a gas cylinder support sleeve, 4. a water bottle, 41. a water bottle connection seat, 411. a limit groove, 42. an upper shell of a water bottle, 5. an air inlet base, 51. an air inlet passage, 52. a sealing seat, 521. a T-shaped connecting edge, 53. an upper base, 531. a vent, 54. a lower base, 55. a T-shaped groove, 6. a bellows, 61. a fixing sleeve, 7. an exhaust seat, 71. an exhaust passage, 8. a spring, 9. a column Components, 91. Column sleeve, 92. Upper connecting cover, 921. First side wall, 922. First connecting surface, 93. Lower connecting cover, 931. Second side wall, 932. Second connecting surface, 941. Mounting through hole, 942. Tapped threaded hole, 943. Snap-on hole, 944. Wiring hole, 10. Support seat, 101. Mounting through column, 11. Inlet button, 111. Guide column, 112. Snap-on column, 113. Return spring, 12. Annular damping pad, 13. Second sleeve,

[0033] 14. Base, 141. Upper base, 1411. Curling edge, 142. Lower base, 1421. Lower abutment surface, 1422. Side abutment surface, 1423. Block, 15. Cavity, 151. Sink,

[0034] 16. Upper shell, 161. Positioning cavity, 162. Top wall, 163. Annular wall, 1631. First arc segment, 1632. Second arc segment, 1633. Straight segment, 17. Gland, 171. Upper edge, 172. Accommodation space, 173. Avoidance groove, 18. Press rod mechanism, 181. Upper press rod, 1811. Resistance portion, 182. Lower press rod,

[0035] 19. Water bottle cover, 191. Upper cover, 1911. Step, 1912. Support ribs, 1913. Fastening groove, 1914. Limit block, 192. Lower cover, 1921. Folding edge, 1922. Variable diameter section. DETAILED DESCRIPTION

[0036] like Figure 1-13As shown, this embodiment shows a bubble water machine with good sealing performance, the bubble water machine 1 includes an air intake base 5, an air intake channel 51 is provided in the air intake base 5, the inlet and outlet of the air intake channel 51 are respectively connected to the external gas cylinder 3 and the air guide tube inside the water bottle 4, a sealing seat 52 is fixed on the air intake base 5, the lower part of the sealing seat 52 is placed in the mouth of the water bottle, the outer edge of the sealing seat 52 is kept in contact with the mouth of the water bottle, and a certain initial compression sealing performance is maintained. The air intake base 5 includes an upper base 53 and a lower base 54 connected to each other by screws, a T-slot is formed at the connection between the two, and a T-shaped connecting edge is provided on the upper edge of the sealing seat 52, and the T-shaped connecting edge is fixed in the T-slot.

[0037] A bellows 6 is arranged above the air intake base 5, the lower end of the bellows 6 is fixedly mounted on the air intake base 5 through a fixing sleeve 61, and the upper end of the bellows 6 is fixedly mounted on the exhaust seat 7 fixedly connected to the body of the bubble water machine. That is, it can be understood that the upper end connection of the bellows 6 is fixed, and the lower end connection of the bellows 6 can move up and down. Further, a plurality of vents 531 are arranged on the upper base 53 of the air intake base 5, and the vents 531 are connected to the inside of the water bottle and the inside of the bellows 6 respectively.

[0038] An exhaust channel 71 communicating with the interior of the bellows 6 is also provided in the exhaust seat 7. The exhaust channel 71 has two paths, which are respectively connected to an exhaust valve and a sound valve. For the structure and working principle of the sound valve, reference may be made to the inventor's CN215334705U patent. As it is not the main protection point of the present invention, it will not be elaborated in detail here.

[0039] Regarding the implementation principle and process of the above structure: when in use, the high-pressure gas in the gas cylinder enters the air intake base 5 through the air guide tube, and the gas enters the liquid in the water bottle and is fully released. When the air pressure in the bottle is too high, the excess gas will go up and pass through the inner circle of the sealing seat 52, and then enter the bellows 6 from the vent 531 of the upper base 53. The bellows 6 is affected by the air pressure, and its side wall expands outward, so that the lower end of the bellows 6 drives the air intake base 5 and the sealing seat 52 as a whole downward to further press against the inner edge of the bottle mouth of the water bottle, thereby improving the sealing of its mouth. At the same time, the excess gas will be discharged from the exhaust channel 71 of the exhaust seat 7. When the air pressure of the bellows 6 returns to the initial range, the side wall of the bellows 6 will return to the concave to meet the requirements of the next use. It should be noted that during the whole process, the contact portion between the mouth of the water bottle and the sealing seat 52 is initially sealed, and the expansion and downward pressure of the bellows 6 can improve the sealing of the contact portion. At the same time, this can be adapted to water bottles with different mouth heights, different mouth sizes, and different piston materials.

[0040] In order to facilitate the resetting of the bellows 6 , a spring 8 is installed between the bellows 6 and the upper base 53 . The spring 8 may be a tension spring for assisting the bellows 6 in returning to its original position.

[0041] In order to better ensure the sealing performance and be suitable for different mouths, the lower part of the sealing seat 52 is set to a conical structure, so that when the sealing seat 52 presses the mouth of the water bottle, the inclined surface is kept in contact to avoid the generation of gaps. At the same time, the sealing seat 52 is made of a material with elastic deformation, such as silicone, rubber, etc.

[0042] At the same time, the housing 2 of the bubble water machine 1 is further optimized on this basis:

[0043] The shell 2 includes a column assembly 9 of the bubble water machine, which is a columnar column assembly 9, in which a gas cylinder is arranged, and the column assembly 9 includes a column sleeve 91, an upper connecting cover 92 is built in the upper end of the column sleeve 91, and a lower connecting cover 93 is built in the lower end, the upper connecting cover 92 includes a first side wall 921 and a first connecting surface 922, and the lower connecting cover 93 includes a second side wall 931 and a second connecting surface 932; the first side wall 921 and the second side wall 931 are both attached to the inner wall of the column sleeve 91 and fixed by welding; a plurality of process holes are provided on the first connecting surface 922 and the second connecting surface 932, and the number and distribution shape of the process holes are not limited, and can be one or more combinations of mounting through holes 941, tapping threaded holes 942, snap-on holes 943, and wiring holes 944. Preferably, the process holes on the first connection surface 922 include a plurality of threaded holes arranged in an annular manner, a plurality of buckle holes 943, a wiring hole 944 and an upper mounting through hole 941 arranged in the central area; a gas cylinder connection seat 31 is provided and fixedly connected to the first connection surface 922 by screws fixed on the threaded holes, a support seat 10 is provided and fixedly connected to the first connection surface 922 by screws fixed on the remaining threaded holes, and a gas cylinder support sleeve 32 is provided and fixedly connected to the first connection surface 922 by buckles through the buckle holes 943; an exhaust pipe is provided and passes through the wiring hole 944. An air intake button 11 is installed above the support seat 10. The gas cylinder passes through the upper mounting through hole 941 and is screwed to the bottom of the gas cylinder connection seat 31, and the gas cylinder support sleeve 32 is provided through the upper outer side of the gas cylinder, and the gas cylinder support sleeve 32 is used to support between the outer wall of the gas cylinder and the inner wall of the column sleeve 91, so that the gas cylinder is not easy to shake during inflation and is more stable. Preferably, the process holes on the second connection surface 932 include a plurality of threaded holes arranged in an annular manner and a lower mounting through hole 941 disposed in the central region. The upper base 141 of the base of the bubble water machine is fixedly connected to the threaded holes of the second connection surface 932 by bolts, and an annular damping pad 12 is also installed between the second connection surface 932 and the upper base 141 to provide a shock absorbing effect for the bubble water machine when air is inletted. When disassembling or replacing the gas cylinder, the gas cylinder will be taken out or inserted from the lower mounting through hole 941.

[0044] In order to ensure that the outer surface of the column assembly 9 is flat, the edges of the first side wall 921 of the upper connecting cover 92 and the second side wall 931 of the lower connecting cover 93 are both located inside the mouth of the column sleeve 91 after installation.

[0045] A second sleeve 13 is also provided above the column sleeve 91 , and the second sleeve 13 covers the support seat 10 and the air intake button 11 above the support seat 10 , and the outer edge of the second sleeve 13 is kept in contact with and flush with the outer edge of the column sleeve 91 .

[0046] The column assembly 9 and the second sleeve 13 are made of stainless steel. The shape of the column assembly 9 is not limited and can be various shapes such as round, square, etc., as long as the first connecting surface 922 and the second connecting surface 932 match it.

[0047] Through the above-mentioned structural design, the connection of the column assembly 9 of the bubble water machine can be completed internally, keeping the outer surface free of exposed connectors, and the overall appearance is flat and straight. At the same time, the first connecting surface 922 and the second connecting surface 932 only need to open the required process holes, which can adapt to the connection of various components.

[0048] The housing 2 also includes a base 14 of the bubble water machine, including an upper base 141 and a lower base 142. The lower base 142 is provided with a step 1911 extending in a circle around its side wall. The step 1911 includes a lower abutment surface 1421 and a side abutment surface 1422. The side abutment surface 1422 is provided with a plurality of annularly spaced blocks 1423, and the blocks 1423 form a slot with the lower abutment surface 1421. The lower end surface of the upper base 141 forms an inwardly curled edge 1411, and the curled edge 1411 is snapped into the slot, so that the upper base 141 and the lower base 142 are fixedly connected. Preferably, the curled edge 1411 is a semi-closed circular cross-section, and the curled edge 1411 is elastic, so that the sheet can be curled 1411, which is simple in process and high in molding efficiency. In order to facilitate the arrangement of the exhaust pipe and the drainage function, a cavity 15 is formed between the upper base 141 and the lower base 142 , and a water tank 151 is disposed in the cavity 15 .

[0049] The housing 2 further comprises an upper housing 16, one end of the support seat 10 is connected to the upper connection cover 92 in the column sleeve 91, and the other end is used to connect the water bottle connection seat 41, the upper housing 16 covers the support seat 10, and a positioning cavity 161 is provided at one end of the upper housing 16 close to the column assembly 9, and a pressure cap 17 is provided in the positioning cavity 161, and the pressure cap 17 is connected to the support seat 10 and presses the upper housing 16 downward. More specifically, the upper housing 16 comprises a top wall 162 and an annular wall 163 extending downward, the annular wall 163 comprises a first arc segment 1631, a second arc segment 1632 and a straight line segment 1633 connecting the two, the first arc segment 1631 is longitudinally flush with the outer wall of the column assembly 9, the outer side of the water bottle connection seat 41 is sleeved with the water bottle upper housing 42, and the second arc segment 1632 is longitudinally flush with the outer wall of the mouth of the water bottle upper housing 42. In order to improve the connection reliability, a connecting piece extending inward is provided on the lower edge of the straight section 1633 of the upper shell 16, and the connecting piece is welded to the inner wall of the upper shell 16. The connecting piece is connected to the lower part of the support seat 10 by screws. The pressure cover 17 includes a protruding upper edge 171 and an internal accommodating space 172. The upper edge 171 is pressed tightly on the upper shell 16, and the air intake button 11 is arranged in the accommodating space 172.

[0050] Through the above-mentioned structural design, the overall shell of the bubble water machine 1 can maintain no exposed connecting parts on the outer surface, and the overall appearance is flat and straight.

[0051] Regarding a more specific setting method of the air intake button 11, the support base 10 is set in the upper shell body, the gas cylinder connecting base 31 is set in the support base 10, the gas cylinder is connected below the gas cylinder connecting base 31, the pressure cover 17 is connected to the support base 10, the pressure cover 17 includes an internal accommodating space 172, the accommodating space 172 is provided with the air intake button 11, the air intake button 11 is restricted to longitudinal movement in the accommodating space 172, and the air intake button 11 is used to press the pressure rod mechanism 18 in the upper shell body to realize the gas release of the gas cylinder.

[0052] Specifically, the air inlet button 11 includes a plurality of guide posts 111 extending downward, and a buckle post 112 extending downward; the support seat 10 is provided with a mounting post 101 matched with the guide post 111, the guide post 111 is placed in the through hole of the mounting post 101, and the buckle post 112 penetrates the gland 17 and the support seat 10 and buckles with the lower end surface of the support seat 10; the mounting post 101 and the upper sleeve 191 of the guide post 111 are provided with a return spring 113. The guide posts 111 are provided with four and are evenly and symmetrically arranged, and the buckle posts 112 are provided with two and are symmetrically arranged.

[0053] Regarding the pressure rod mechanism 18, it includes an upper pressure rod 181 and a lower pressure rod 182; the first end of the lower pressure rod 182 is hinged on the gas cylinder connecting seat 31, and the second end is driven upward by a spring; the first end of the upper pressure rod 181 is hinged on the support seat 10, and the end thereof is provided with a contact portion 1811 which is pressed and contacted with the second end of the lower pressure rod 182, and the second end thereof is driven upward by the action of the lower pressure rod 182 and maintains contact with the lower end surface of the air intake button 11.

[0054] In order to ensure integrity, the upper end surface of the air inlet button 11 is kept flush with the upper end surface of the pressure cover 17.

[0055] In order to ensure the implementation of air intake, the pressure cover 17 is provided with an avoidance groove 173 to provide installation space and activity space for the pressure rod mechanism 18 .

[0056] On this basis, a water bottle sleeve 19 structure is further provided, and the water bottle sleeve 19 is used to cover at least part of the water bottle. The water bottle sleeve 19 includes an upper sleeve 191 made of a first material and a lower sleeve 192 made of a second material, the lower part of the upper sleeve 191 is arranged between the water bottle and the lower sleeve 192, and the upper sleeve 191 extends out of the lower sleeve 192. Among them, the first material is preferably a plastic material, and the second material is preferably a stainless steel material.

[0057] More specifically, the upper sleeve 191 is provided with a step 1911, and the upper edge of the lower sleeve 192 is formed inwardly with a folded edge 1921, and the folded edge 1921 is pressed against the step 1911, so that dual positioning in the longitudinal and transverse directions can be achieved. The lower sleeve 192 is provided with a diameter-changing section 1922 from large to small from the mouth downward, and the lower part of the upper sleeve 191 is pressed in the diameter-changing section 1922. The lower part of the upper sleeve 191 is provided with a plurality of annularly distributed support ribs 1912, and fastening grooves 1913 are formed between adjacent support ribs 1912. A rubber block (not shown in the figure) is provided in the fastening groove 1913, and the rubber block maintains pressure contact with the inner wall of the lower sleeve 192. At the same time, the problem of loose fitting caused by the temperature difference between hot and cold can also be overcome by the rubber block.

[0058] For the convenience of connection, a water bottle connecting seat 41 installed on the sparkling water machine is provided on the upper part of the water bottle, and a plurality of limiting grooves 411 are provided on the inner wall of the lower part of the water bottle connecting seat 41. The upper part of the upper sleeve 191 is provided with a limiting block 1914 protruding outward, and the limiting block 1914 can slide into the limiting groove 411 and form a clamping, so that the upper sleeve 191 and the water bottle connecting seat 41 can be rotated and clamped.

[0059] The above is only a preferred embodiment of the present invention and does not limit the present invention in any form. Simple modifications, equivalent changes or modifications made without departing from the technical solution of the present invention all fall within the protection scope of the present invention.

Claims

1. A bubble water machine with good sealing performance, comprising an air intake base, wherein the air intake base is provided with an air intake channel connecting the inside of the gas bottle and the water bottle, It is characterized in that A sealing seat is fixed on the air inlet base, the lower part of the sealing seat is placed in the mouth of the water bottle, the outer edge of the sealing seat is kept in contact with the mouth of the water bottle, and the initial compression and sealing performance is maintained; It also includes a bellows, the lower end of which is fixedly mounted on the air inlet base, and the upper end of which is fixedly mounted on an exhaust seat fixedly connected to the body of the bubble water machine; The air inlet base comprises an upper base and a lower base connected to each other by fasteners, the upper base is provided with an air vent which passes through from top to bottom, and the air vent is connected to the inside of the water bottle and the inside of the bellows respectively; When the water bottle is vented, the gas will enter the bellows, and under the action of the air pressure, the side wall of the bellows will expand outward, so that the lower end of the bellows will drive the air intake base and the sealing seat as a whole downward to further press against the inner edge of the bottle mouth; A T-shaped groove is formed at the connection between the upper base and the lower base, and a T-shaped connecting edge is arranged on the upper edge of the sealing seat, and the T-shaped connecting edge is fixed in the T-shaped groove.

2. A bubble water machine with good sealing performance according to claim 1, characterized in that: An exhaust channel communicating with the interior of the bellows is also provided in the exhaust seat. The exhaust channel is provided with two paths, which are respectively connected to the exhaust valve and the sound valve.

3. The bubble water machine with good sealing performance according to claim 1, characterized in that: The excess gas after the bellows is compressed and expanded will be discharged from the exhaust channel of the exhaust seat, and when the air pressure in the bellows is restored to the initial range, the side wall of the bellows will resume its concave shape.

4. The airtight bubble water machine according to claim 1, characterized in that: The bubble water machine comprises an upper shell, a support base and a column assembly, wherein the column assembly comprises a column sleeve, an upper connecting cover is built into the upper end of the column sleeve, and a lower connecting cover is built into the lower end; the upper connecting cover comprises a first side wall and a first connecting surface, and the lower connecting cover comprises a second side wall and a second connecting surface; the first side wall and the second side wall are both adhered to the inner wall of the column sleeve and fixed by welding; a plurality of process holes are provided on the first connecting surface and the second connecting surface; an upper connecting cover is built into the upper end of the column sleeve.

5. The airtight bubble water machine according to claim 4, characterized in that: One end of the support seat is connected to the upper connecting cover, and the other end is used to connect to the water bottle connecting seat; the upper shell covers the support seat, and a positioning cavity is provided at one end of the upper shell close to the column assembly, and a pressure cover is provided in the positioning cavity, and the pressure cover is connected to the support seat and presses the upper shell downward.

6. The airtight bubble water machine according to claim 4, characterized in that: The process holes are one or more combinations of threaded holes, snap-on holes, wiring holes, and mounting through holes; the process holes on the first connecting surface include multiple annularly arranged threaded holes, multiple snap-on holes, a wiring hole, and an upper mounting through hole set in the central area; the process holes on the second connecting surface include multiple annularly arranged threaded holes and a lower mounting through hole set in the central area.

7. The airtight bubble water machine according to claim 5, characterized in that: The upper shell includes a top wall and an annular wall extending downward, the annular wall includes a first arc segment, a second arc segment and a straight line segment connecting the two; the first arc segment is kept flush with the outer wall of the column assembly in the longitudinal direction; the outer side of the water bottle connecting seat is provided with the upper shell of the water bottle, and the second arc segment is kept flush with the outer wall of the mouth of the upper shell of the water bottle in the longitudinal direction.

8. The airtight bubble water machine according to claim 1, characterized in that: It also includes a water bottle cover for covering at least part of the water bottle, the water bottle cover includes an upper cover made of a first material and a lower cover made of a second material, the lower portion of the upper cover is arranged between the water bottle and the lower cover, and the upper cover extends out of the lower cover.

9. The airtight bubble water machine according to claim 8, characterized in that: The upper sleeve is provided with a step, and the upper edge of the lower sleeve is formed with a folded edge inwardly, and the folded edge is pressed against the step; the lower part of the upper sleeve is provided with a plurality of annularly distributed supporting ribs, and fastening grooves are formed between adjacent supporting ribs, and rubber blocks are provided in the fastening grooves, and the rubber blocks maintain pressure contact with the inner wall of the lower sleeve.

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