Bottle opening structure fixedly provided with one-way valve

Abstract

The utility model discloses a bottleneck structure fixedly provided with a one-way valve, which comprises a one-way valve arranged on the inner side of a bottleneck part and a fixing piece for fixing the one-way valve, the one-way valve is of a tubular structure with an opening at one end, the opening end face of the one-way valve faces the lower part of the bottleneck, and the other end of the one-way valve is sunken towards the inside of a tube body of the one-way valve. A concave part is formed, and a discharge port capable of being opened and closed is formed in the concave part; the outer wall of the one-way valve is connected to the inner wall of the bottle opening portion in an interference fit mode, the fixing piece is connected with the upper end of the bottle opening portion in a buckled mode, the one-way valve is fixed in the bottle opening portion, when the bottle body is squeezed, a material body in an inner cavity jacks up a concave portion of the one-way valve, the discharging port is opened, and the bottle opening portion is opened. And after the material body is extruded, the concave part of the one-way valve automatically resets, and the discharge port is closed.

Description

Technical Field

[0001] The utility model belongs to the field of hose bottle mouth design, and in particular relates to a bottle mouth structure with a one-way valve fixedly installed. Background Art

[0002] The safety, hygiene, ease of use and aesthetics of the hose bottle mouth are all required in the cosmetics, medicine, food and other industries. At the same time, factors such as product characteristics, market demand and environmental protection should also be considered. The hose bottle mouth is usually made of soft and durable materials such as silicone and polyethylene to ensure sealing and durability. The sealing technology of the hose bottle mouth is crucial to prevent liquid or gas leakage. Common sealing technologies include O-rings, threaded designs, etc. The assembly process of the hose bottle mouth needs to ensure the quality of the seal and the bottle mouth itself. Precise processing and assembly processes can ensure that the seal is perfectly combined with the bottle mouth, thereby ensuring sealing performance and durability. The design of the hose bottle mouth also takes into account the convenience and comfort of the user. For example, the design that is easy to open and close can improve the user experience, and the ergonomic shape can reduce discomfort during use, thereby increasing user satisfaction and loyalty. Some existing hose bottle mouth designs generally directly squeeze out the material by extrusion. The extruded part of the material will flow back into the tube and combine with the material in the tube. The returned material contacts the external environment and also pollutes the material in the tube. This cannot achieve the preservation requirements for some materials with special needs. In addition, the design of preventing backflow at the bottle mouth is relatively complicated and cannot be reused, which will result in poor anti-backflow effect and other problems.

[0003] The Chinese patent with announcement number CN 211944470U discloses a hand sanitizer bottle, which is mainly provided with a hard tube at the bottom of the foam pump to facilitate the introduction of the replenishing liquid, and also realizes the antibacterial function and the effect of avoiding cross infection; however, the problems of material backflow prevention, backflow prevention effect and reuse are not solved.

[0004] Therefore, in view of the problems existing in the prior art, it is urgently necessary to provide a bottle mouth structure with a one-way valve fixedly installed to solve the problems existing in the prior art. Summary of the invention

[0005] In response to the problems in the related technology, the utility model proposes a bottle mouth structure with a one-way valve fixedly installed, the one-way valve is fixed to the bottle mouth by a fixing part, and the one-way valve is set as a concave top structure to prevent the material from flowing back into the bottle after flowing out, thereby avoiding contamination of the material inside the bottle by the external material and the environment.

[0006] The utility model is achieved in this way:

[0007] A bottle mouth structure with a one-way valve fixedly installed thereon comprises a bottle body with a hollow inner cavity, a bottle mouth is arranged at the upper end of the bottle body, the bottle mouth and the inner cavity of the bottle body are connected to each other; a bottle mouth portion is formed by extending upward along the circumference of the bottle mouth, and a one-way valve is sleeved on the inner wall of the bottle mouth portion;

[0008] The one-way valve is a tubular structure with an opening at one end, the opening end of which faces the bottle mouth, and the other end of the one-way valve is recessed toward the inside of the tube body to form a recessed portion, in which a discharging port that can be opened and closed is provided; the outer wall of the one-way valve is connected to the inner wall of the bottle mouth by interference fit;

[0009] The fixing member is buckled and connected with the upper end of the bottle mouth, and fixes the one-way valve in the bottle mouth;

[0010] When the bottle body is squeezed, the material in the inner cavity pushes up the recessed part of the one-way valve, opens the discharge port, and flows out to the outside through the discharge port. After the material body is squeezed, the recessed part of the one-way valve automatically resets to close the discharge port.

[0011] Preferably, the outer wall of the bottle mouth is provided with threads, and the bottle cap is connected with the outer wall of the bottle mouth through the threads;

[0012] A convex portion is provided in the bottle cap at a position corresponding to the concave portion, an annular convex piece is provided on the periphery of the convex portion, and an annular groove is formed between the annular convex piece and the convex portion;

[0013] When the bottle cap is closed, the upper end of the fixing member abuts against the annular groove, and the protruding portion presses against the edge of the recessed portion.

[0014] Specifically, the raised portion of the bottle cap mainly plays a role of pressing and blocking the depressed portion, thereby preventing the discharge port from opening and the material from overflowing.

[0015] Preferably, the recessed portion is composed of a plurality of petal structures, and the petal structures are divided from the center of the recessed portion to the edge of the recessed portion.

[0016] Specifically, the recessed portion is divided from the center point of the recessed portion toward the periphery so that the material can flow out from the gaps thereof. The divided shape may be a straight line, a Y shape, a cross shape, and the like.

[0017] Preferably, the bottle mouth bulges inwardly to form an annular support platform, and the open end of the one-way valve abuts against the support platform.

[0018] Specifically, the support platform of the bottle mouth is mainly used to support the one-way valve to prevent the one-way valve from falling into the bottle or the tube.

[0019] Preferably, the end of the fixing member connected to the bottle mouth is provided with inner and outer annular clamping plates, a clamping groove is formed between the inner clamping plate and the outer clamping plate, and the upper end of the bottle mouth is matched with the clamping groove.

[0020] Specifically, the fixing member is seated on the bottle mouth through the clamping groove, so that the fixing member can be fixed on the bottle mouth and play a role in limiting and fixing the one-way valve.

[0021] Preferably, the edge of the upper end of the bottle mouth is folded outward to form an annular skirt, and an annular retaining piece protrudes from the side of the outer retaining plate connected to the bottle mouth, and the retaining piece is buckled and connected to the annular skirt.

[0022] Specifically, the fixing member is fixed to the bottle mouth by using the upper and lower buckling connection of the annular skirt and the clamping member to prevent it from being separated from the upper end of the bottle mouth.

[0023] Preferably, the one-way valve includes a fixed part and a discharge channel connected to the fixed part, the lower end of the fixed part abuts against the support platform, the upper end of the fixed part protrudes inward to form a ring edge, one end of the discharge channel is connected to the inner edge of the ring edge, and the other end is connected to the recessed part.

[0024] Specifically, the fixing part is connected to the discharge channel as a whole; the fixing part is mainly used to fix the one-way valve;

[0025] The portion where the fixing portion connects to the bottle mouth is a trapezoidal structure that is wide at the top and narrow at the bottom. The structure that is wide at the top and narrow at the bottom can play a buffering role, and is also convenient for disassembly and assembly of the one-way valve, and can be reused, which is both environmentally friendly and can improve utilization rate.

[0026] Preferably, an annular boss protrudes from the back side of the card slot, and the annular boss is located on the side corresponding to the inner card plate.

[0027] Specifically, the annular boss is located outside the recessed portion, which can not only stabilize the recessed portion and the discharge channel, but also cooperate with the bottle cap structure to further fix the fixing piece from the upper end. When the bottle cap is closed, it forms a closed space above the recessed portion with the bottle cap to increase the sealing performance.

[0028] Specifically, the size of the protrusion is adapted to the size of the recess, the annular protrusion abuts against the fixing member, and the annular boss is located in the annular groove between the annular protrusion and the protrusion;

[0029] Specifically, through the structural relationship between the bottle cap, the fixing part and the one-way valve, the fixing part can be further fixed and limited, and at the same time, when the bottle cap is closed, the sealing above the recessed part is ensured; the material is prevented from flowing to the outer wall of the bottle mouth or other areas in the bottle cap; and the recessed part can also be blocked.

[0030] Preferably, the inner clamp abuts against the outer edge of the ring edge; the side wall of the fixing member is connected to the inner wall of the bottle mouth portion by interference fit, and its upper and lower ends are fixed between the support platform and the inner clamp.

[0031] Specifically, the inner clamping plate abuts against the outer edge of the ring edge mainly to fix the one-way valve from the upper end, and the side wall of the fixing part is located between the inner clamping plate and the support platform. The upper and lower ends of the fixing part are fixed by the inner clamping plate and the support platform to prevent it from moving up and down; the side wall of the fixing part is connected to the inner wall of the bottle mouth part through interference fit, thereby fixing the one-way valve to the bottle mouth part; and the sealing of the one-way valve and the bottle mouth part structure is ensured.

[0032] The portion where the inner clamping plate connects to the one-way valve is a trapezoidal structure that is wide at the top and narrow at the bottom; the structure that is wide at the top and narrow at the bottom and the clamping piece are both convenient for disassembly and assembly of the fixing piece, so that the fixing piece and the one-way valve can be reused, thereby improving their use efficiency and being more environmentally friendly.

[0033] Preferably, a plurality of longitudinal convex strips are provided at intervals on the inner wall of the fixing portion, and one end of the convex strip is connected to the discharge channel.

[0034] Specifically, the longitudinal convex strips can increase the overall balance and stability of the one-way valve, and can also adapt to the process flow during production.

[0035] Compared with the prior art, the utility model achieves the following beneficial effects:

[0036] The utility model provides a bottle mouth structure with a one-way valve fixedly installed, by arranging a one-way valve and a fixing part at the bottle mouth, the top of the one-way valve is a concave structure, the arrangement of the concave part can not only realize the non-return function of the material body, so that the material body that has flowed out cannot flow back into the pipe, and avoid the external material body and the environment from polluting the material body in the bottle; and the concave top design can reduce the pressure loss of the valve when it is opened, and its design can respond to the change of the material body pressure more quickly, which is helpful to improve the dynamic performance of the system, effectively prevent the backflow of the material body, maintain the one-way flow of the material body in the system, and ensure the normal operation of the system; the concave top one-way valve is relatively compact in design and is suitable for applications with limited space. It is made of wear-resistant materials and has a long service life and good corrosion resistance; therefore, the concave top one-way valve has significant advantages in controlling the flow direction of the fluid, preventing backflow, simplifying the pipeline design and improving the safety of the system. In addition, the overall structure of the present application is simple and has high sealing performance, which can prevent pollutants from entering the container, play a role in preserving the internal material body, and also meet the needs of some special material bodies. The overall structure can be reused and is more environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a structural schematic diagram of a bottle mouth structure with a one-way valve fixedly installed in an embodiment of the utility model;

[0038] Figure 2 It is a cross-sectional schematic diagram of a bottle mouth structure with a one-way valve fixedly installed in an embodiment of the utility model;

[0039] Figure 3 A bottle mouth structure with a one-way valve fixedly installed in the embodiment of the utility model Figure 2 One of the partial enlarged schematic diagrams of the middle A part;

[0040] Figure 4 A bottle mouth structure with a one-way valve fixedly installed in the embodiment of the utility model Figure 2 The second partial enlarged schematic diagram of the middle A part;

[0041] Figure 5 This is one of the structural schematic diagrams of a one-way valve in a bottle mouth structure with a one-way valve fixedly installed in an embodiment of the utility model;

[0042] Figure 6 This is a second structural schematic diagram of a one-way valve in a bottle mouth structure fixedly equipped with a one-way valve in an embodiment of the utility model;

[0043] Figure 7 This is one of the structural schematic diagrams of a fixing member of a bottle mouth structure on which a one-way valve is fixedly installed in an embodiment of the utility model;

[0044] Figure 8 This is a second structural schematic diagram of a fixing member for fixing a bottle mouth structure with a one-way valve in an embodiment of the utility model;

[0045] Fig. 9 The present invention is a schematic structural diagram of a bottle cap having a bottle mouth structure fixedly mounted with a one-way valve in an embodiment of the present invention.

[0046] Reference numerals:

[0047] 101, one-way valve; 102, recessed portion; 103, fixed portion; 104, discharge channel; 105, ring edge; 106, petal body structure; 107, convex strip;

[0048] 201, fixing member; 202, inner clamping plate; 203, outer clamping plate; 204, clamping groove; 205, clamping member; 206, annular boss;

[0049] 301, bottle mouth; 302, thread; 303, bottle mouth; 304, support platform; 305, annular skirt;

[0050] 401, bottle cap; 402, raised portion; 403, annular protrusion; 404, annular groove. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0052] Example:

[0053] like Figures 1 to 9 A bottle mouth structure with a one-way valve 101 fixedly installed thereon comprises a bottle body with a hollow inner cavity, a bottle mouth 303 is arranged at the upper end of the bottle body, and the bottle mouth 303 is communicated with the inner cavity of the bottle body; a bottle mouth portion 301 is formed by extending upward along the circumference of the bottle mouth 303, and the inner wall of the bottle mouth portion 301 is sleeved with the one-way valve 101;

[0054] The bottle mouth structure with the one-way valve 101 fixedly installed is applied to the bottle mouth structure of a hose, such as a hose for daily chemical products.

[0055] The one-way valve 101 is a tubular structure with an opening at one end, the opening end of which faces the bottle mouth 303, and the other end of the one-way valve 101 is recessed toward the inside of the tube body to form a recessed portion 102, and a discharging port that can be opened and closed is provided in the recessed portion 102; the outer wall of the one-way valve 101 is connected to the inner wall of the bottle mouth portion 301 by interference fit;

[0056] The recessed portion 102 is composed of a plurality of petal structures 106 , and the petal structures 106 are divided from the center of the recessed portion 102 to the edge of the recessed portion 102 .

[0057] The recessed portion 102 is divided from the center point of the recessed portion 102 toward the periphery so that the material can flow out from the gaps thereof, and the shape of the division is a cross; the petal structure 106 forms a material outlet.

[0058] The bottle mouth 303 is convex inwardly formed into an annular support platform 304 , and the open end of the one-way valve 101 abuts against the support platform 304 .

[0059] The support platform 304 of the bottle mouth 303 is mainly used to support the one-way valve 101 to prevent the one-way valve 101 from falling into the bottle or the tube.

[0060] The fixing member 201 is buckled and connected with the upper end of the bottle mouth 301, and the one-way valve 101 is fixed in the bottle mouth 301;

[0061] When the bottle body is squeezed, the material in the inner cavity pushes up the recessed portion 102 of the one-way valve 101, opens the discharge port, and flows out to the outside through the discharge port. After the material body is squeezed, the recessed portion 102 of the one-way valve 101 automatically resets to close the discharge port.

[0062] The end of the fixing member 201 connected to the bottle mouth 301 is provided with inner and outer annular clamping plates, a clamping groove 204 is formed between the inner clamping plate 202 and the outer clamping plate 203 , and the upper end of the bottle mouth 301 is matched with the clamping groove 204 .

[0063] The fixing member 201 is seated on the bottle mouth 301 through the clamping groove 204 , so that the fixing member 201 can be fixed on the bottle mouth 301 , and plays a role in limiting and fixing the one-way valve 101 .

[0064] The edge of the upper end of the bottle mouth 301 is folded outward to form an annular skirt 305 , and an annular retaining piece 205 is protruded from the side of the outer retaining plate 203 connected to the bottle mouth 301 , and the retaining piece 205 is buckled and connected to the annular skirt 305 .

[0065] The fixing member 201 is fixed to the bottle mouth portion 301 by means of the upper and lower buckling connection between the annular skirt 305 and the blocking member 205 , so as to prevent the fixing member 201 from being separated from the upper end of the bottle mouth portion 301 .

[0066] The one-way valve 101 includes a fixed portion 103 and a discharge channel 104 connected to the fixed portion 103, the lower end of the fixed portion 103 abuts against the support platform 304, the upper end of the fixed portion 103 protrudes inward to form a ring edge 105, one end of the discharge channel 104 is connected to the inner edge of the ring edge 105, and the other end is connected to the recessed portion 102.

[0067] The fixing portion 103 is connected to the discharge channel 104 as a whole; the fixing portion 103 is mainly used to fix the one-way valve 101;

[0068] The portion where the fixing portion 103 and the bottle mouth 303 meet is a trapezoidal structure that is wide at the top and narrow at the bottom. The wide at the top and narrow at the bottom structure can act as a buffer, and is also convenient for disassembly and assembly of the one-way valve 101 and can be reused, which is both environmentally friendly and can improve utilization rate.

[0069] The inner clamping plate 202 abuts against the outer edge of the ring edge 105 ; the side wall of the fixing member 201 is connected to the inner wall of the bottle mouth portion 301 by interference fit, and its upper and lower ends are fixed between the support platform 304 and the inner clamping plate 202 .

[0070] The inner clamping plate 202 is pressed against the outer edge of the ring edge 105 mainly to fix the one-way valve 101 from the upper end. The side wall of the fixing portion 103 is located between the inner clamping plate 202 and the support platform 304. The upper and lower ends of the fixing portion 103 are fixed by the inner clamping plate 202 and the support platform 304 to prevent it from moving up and down. The side wall of the fixing portion is connected to the inner wall of the bottle mouth portion 301 through interference fit, thereby fixing the one-way valve 101 to the bottle mouth portion 301; and the sealing of the one-way valve 101 and the bottle mouth portion 301 structure is guaranteed.

[0071] The portion where the inner clamping plate 202 connects to the one-way valve 101 is a trapezoidal structure that is wide at the top and narrow at the bottom. The wide at the top and narrow at the bottom structure and the clamping member 205 facilitate the disassembly and assembly of the fixing member 201, so that the fixing member 201 and the one-way valve 101 can be reused, thereby improving their use efficiency and being more environmentally friendly.

[0072] The inner wall of the fixing portion 103 is provided with a plurality of longitudinal convex strips 107 at intervals, and one end of the convex strips 107 is connected to the discharge channel 104 .

[0073] The longitudinal convex strips 107 can increase the overall balance and stability of the one-way valve 101 and can also adapt to the process flow during production.

[0074] An annular boss 206 protrudes from the back side of the clamping slot 204 , and the annular boss 206 is located on a side corresponding to the inner clamping plate 202 .

[0075] The annular boss 206 is located outside the recessed portion 102, which can not only stabilize the recessed portion 102 and the discharge channel 104, but also cooperate with the bottle cap 401 structure to further fix the fixing member 201 from the upper end. When the bottle cap 401 is closed, it forms a closed space above the recessed portion 102 with the bottle cap 401 to increase the sealing performance.

[0076] The outer wall of the bottle mouth 301 is provided with a thread 302 , and the bottle mouth 301 is connected with the bottle cap 401 through the thread 302 .

[0077] A convex portion 402 is provided in the bottle cap 401 at a position corresponding to the concave portion 102, and an annular convex part 403 is provided on the periphery of the convex portion 402, and an annular groove 404 is formed between the annular convex part 403 and the convex portion 402;

[0078] The size of the protrusion 402 is adapted to the size of the recess 102 , the annular protrusion 403 abuts against the fixing member 201 , and the annular boss 206 is located in the annular groove 404 between the annular protrusion 403 and the protrusion 402 ;

[0079] When the bottle cap is closed, the upper end of the fixing member 201 abuts against the annular groove 404 , and the protrusion 402 presses against the edge of the recess 102 .

[0080] Through the structural relationship between the bottle cap 401, the fixing member 201 and the one-way valve 101, the fixing member 201 can be further fixed and limited, and at the same time, when the bottle cap 401 is covered, the sealing above the recessed portion 102 is ensured; the material is prevented from flowing to the outer wall of the bottle mouth 301 or other areas in the bottle cap 401; and the recessed portion can also be blocked.

[0081] The utility model provides a bottle mouth structure with a one-way valve 101 fixedly installed. The anti-backflow principle is that by squeezing the material body inside the hose, the internal material pushes up the cross-shaped petal body of the recessed part 102 on the one-way valve 101, and after flowing out through the gap of the cross-shaped petal body, the petal body of the recessed part 102 automatically resets and closes the gap, thereby preventing the outflowing material from flowing back into the hose.

[0082] The utility model provides a bottle mouth structure with a one-way valve 101 fixedly installed, comprising a fixing part 201 and the one-way valve 101. A recessed portion 102 is provided at the upper end of the one-way valve 101. The setting of the recessed portion 102 not only prevents the backflow of the material body, but also its concave top design can reduce pressure loss, respond to changes in the pressure of the material body more quickly, and effectively prevent the backflow of the material body. The utility model also has a compact overall design, which is suitable for occasions with limited space. The utility model has a simple structure and can be disassembled and reused, which is both environmentally friendly and can improve the use efficiency.

[0083] According to the disclosure and teaching of the above specification, the technicians in the field of the utility model can also change and modify the above implementation. Therefore, the utility model is not limited to the specific implementation methods disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of explanation and do not constitute any limitation to the utility model.

Claims

1. A bottle mouth structure with a one-way valve fixedly installed, comprising a bottle body with a hollow inner cavity, a bottle mouth is arranged at the upper end of the bottle body, and the bottle mouth is communicated with the inner cavity of the bottle body; a bottle mouth portion is formed by extending upward along the circumference of the bottle mouth, and a one-way valve is sleeved on the inner wall of the bottle mouth portion; characterized in that: The one-way valve is a tubular structure with an opening at one end, the opening end of which faces the bottle mouth, and the other end of the one-way valve is recessed toward the inside of the tube body to form a recessed portion, in which a discharging port that can be opened and closed is provided; the outer wall of the one-way valve is connected to the inner wall of the bottle mouth by interference fit; It also includes a fixing member, which is snap-fitted with the upper end of the bottle mouth and fixes the one-way valve in the bottle mouth; When the bottle body is squeezed, the material in the inner cavity pushes up the recessed part of the one-way valve, opens the discharge port, and flows out to the outside through the discharge port. After the material body is squeezed, the recessed part of the one-way valve automatically resets to close the discharge port.

2. A bottle mouth structure with a one-way valve fixedly installed according to claim 1, characterized in that: The outer wall of the bottle mouth is cooperatively connected with a bottle cap; A convex portion is provided in the bottle cap at a position corresponding to the concave portion, an annular convex piece is provided on the periphery of the convex portion, and an annular groove is formed between the annular convex piece and the convex portion; When the bottle cap is closed, the upper end of the fixing member abuts against the annular groove, and the protruding portion presses against the edge of the recessed portion.

3. The bottle mouth structure with a one-way valve fixedly installed according to claim 1, characterized in that: The recessed portion is composed of a plurality of petal structures, and the petal structures are divided from the center of the recessed portion to the edge of the recessed portion.

4. The bottle mouth structure with a one-way valve fixedly installed according to claim 1, characterized in that: The bottle mouth is bulged inwardly to form an annular support platform, and the open end of the one-way valve abuts against the support platform.

5. The bottle mouth structure with a one-way valve fixedly installed according to claim 4, characterized in that: One end of the fixing member connected to the bottle mouth is provided with inner and outer annular clamping plates, a clamping groove is formed between the inner clamping plate and the outer clamping plate, and the upper end of the bottle mouth is matched with the clamping groove.

6. The bottle mouth structure with a one-way valve fixedly installed according to claim 5, characterized in that: The edge of the upper end of the bottle mouth is folded outward to form an annular skirt, and an annular clamping piece is protruded from one side of the outer clamping plate connected to the bottle mouth, and the clamping piece is buckled and connected to the annular skirt.

7. The bottle mouth structure with a one-way valve fixedly installed according to claim 5, characterized in that: The one-way valve includes a fixed part and a discharge channel connected to the fixed part, the lower end of the fixed part abuts against the support platform, the upper end of the fixed part protrudes inward to form a ring edge, one end of the discharge channel is connected to the inner edge of the ring edge, and the other end is connected to the recessed part.

8. The bottle mouth structure with a one-way valve fixedly installed according to claim 5, characterized in that: An annular boss protrudes from the back side of the clamping slot, and the annular boss is located on a side corresponding to the inner clamping plate.

9. The bottle mouth structure with a one-way valve fixedly installed according to claim 7, characterized in that: The inner clamping plate abuts against the outer edge of the ring edge; the side wall of the fixing member is connected to the inner wall of the bottle mouth portion by interference fit, and its upper and lower ends are fixed between the support platform and the inner clamping plate.

10. The bottle mouth structure with a one-way valve fixedly installed according to claim 7, characterized in that: The inner wall of the fixing portion is provided with a plurality of longitudinal convex strips at intervals, and one end of the convex strip is connected to the discharge channel.

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