WO2023232150A1

WO2023232150A1 - Valve assembly

Info

Publication number: WO2023232150A1
Application number: PCT/CN2023/098996
Authority: WO
Inventors: 俞舟; 冯忠波; 康志军
Original assignee: 浙江盾安人工环境股份有限公司
Priority date: 2022-06-02
Filing date: 2023-06-07
Publication date: 2023-12-07

Abstract

A valve assembly, comprising: a bottle, which comprises a bottle body (11) and a bottle cap (12), one end of the bottle body (11) being provided with an opening, the other end of the bottle body (11) being provided with a bottle mouth, and the bottle cap (12) being arranged at the opening; and a solenoid valve, which is arranged at the bottle mouth and comprises a fixing frame (21), a valve body and a coil assembly (24). The valve body has a circulation port (22) and a valve port (23), which are arranged opposite each other, and the valve body is connected to the bottle mouth, wherein the circulation port (22) is located in the bottle mouth, and the circulation port (22) is arranged towards a side wall of the bottle body (11); the fixing frame (21) is connected to the bottle body (11); and the valve body and the coil assembly (24) are fixed to the fixing frame, and the coil assembly (24) surrounds the periphery of the valve body. The valve port (23) is in communication with the circulation port (22), and the valve port (23) has an open state and a closed state, which are set relative to each other. By means of the valve assembly, the problem of valve assemblies in the prior art being prone to leaking can be solved.

Description

valve assembly

This application is required to be submitted to the China State Intellectual Property Office on June 2, 2022. The application number is 2022213683815 and the invention name is "Essential Oil Bottle and Valve Assembly with the Same"; it is submitted to the China State Intellectual Property Office on June 10, 2022. Office, the application number is 2022214472084, and the invention name is "valve assembly"; it was submitted to the China State Intellectual Property Office on June 10, 2022, and the application number is 2022214471363, and the invention name is "valve assembly".

Technical field

The present application relates to the technical field of valve components, and specifically to a valve component.

Background technique

The patent with publication number CN215795596U discloses an essential oil device. The essential oil device includes a bottle body and a solenoid valve. The bottle body includes a bottle body and a bottle cap. Essential oils can be stored in the bottle body. One end of the bottle body is provided with a bottle mouth. The other end is provided with a bottle cap, and a solenoid valve is provided at the bottle mouth. The solenoid valve has a relatively set flow port and a valve port. The flow port is set in the bottle body, and the essential oil can flow to the valve port through the flow port. The valve port has a relatively set flow port. open and closed states to control the flow of essential oils. However, the flow port is usually set corresponding to the bottle cap. When the valve port is switched from the open state to the closed state, the essential oil in the solenoid valve will splash upward from the flow port to the bottle cap under the action of pressure, and part of the essential oil will flow along the bottle. The gap in the cap flows to the outside of the bottle causing leakage, which will affect the user experience.

Contents of the invention

The present application provides a valve assembly to solve the problem that valve assemblies in the prior art are prone to leakage.

This application provides a valve assembly. The valve assembly includes: a bottle body. The bottle body includes a bottle body and a bottle cap. One end of the bottle body is provided with an opening, the other end of the bottle body is provided with a bottle mouth, and the bottle cap is provided at the opening; The solenoid valve is arranged at the bottle mouth. The solenoid valve includes a valve body. The valve body has a flow port and a valve port arranged oppositely. The valve body is connected to the bottle mouth, and the flow port is located in the bottle mouth. The flow port is set toward the side wall of the bottle body. , the valve port is connected with the flow port, and the valve port has a relatively set open state and a closed state.

Applying the technical solution of this application, the flow port is set toward the side wall of the bottle. When the valve port is switched from the open state to the closed state, the essential oil in the solenoid valve will splash from the flow port to the inner wall of the bottle. Because The extension direction of the inner wall of the bottle body is arranged along the vertical direction. By arranging the above structure, the essential oil can be buffered to prevent the essential oil from splashing onto the bottle cap. At the same time, the essential oil attached to the inner wall can be allowed to flow vertically into the bottle body, thereby preventing the essential oil from gradually flowing from the bottle cap. Flow to the outer wall and cause leakage, which effectively ensures the service life of the device and improves the user experience.

Further, the valve body includes: a fixed iron core connected to the bottle mouth, the fixed iron core is partially arranged in the bottle body, and a circulation channel is provided in the fixed iron core, one end of the circulation channel forms a flow port; a shell, and the fixed iron core The end of the housing away from the bottle is connected, the shell has a flow chamber, the other end of the flow channel is connected to the flow chamber, the end of the shell away from the fixed iron core has a valve port, the valve port is connected to the flow chamber; the moving iron core is movable Ground is placed in the flow chamber, and the moving iron core is used to open or block the valve port. by setting up With the above structure, the valve body can open or block the valve port through the moving iron core, which can control the flow of essential oil in the bottle, thereby reducing the waste of essential oil during use.

Further, the circulation channel includes a first circulation channel and a second circulation channel that are connected to each other. The end of the first circulation channel is located on the side wall of the fixed iron core. The fixed iron core is connected to the bottle body through the first circulation channel. The moving iron A third flow channel is provided on the core. One end of the third flow channel communicates with the flow chamber, and the other end of the third flow channel can be connected with the valve port. Both the second flow channel and the third flow channel extend along the axial direction of the valve body. . By arranging the above structure, when the essential oil in the bottle flows from the first circulation channel into the interior of the fixed iron core and the moving iron core, since the fixed iron core and the moving iron core have circulation channels extending along the axial direction, the essential oil flows under the influence of gravity. Under the action, it can flow along the circulation channel to the valve port, which can reduce the resistance of essential oil during flow, thereby improving the flow efficiency of essential oil.

Further, the first circulation channel has a plurality of circulation openings, and the plurality of circulation openings are annularly arranged on the side wall of the stator core. This allows the essential oil in the bottle to flow into the solenoid valve through multiple flow ports, thereby increasing the flow rate of the essential oil. At the same time, when the solenoid valve switches from the open state to the closed state, the essential oil in the solenoid valve can flow through the multiple flow ports. When the essential oil is sprayed onto the inner wall of the bottle, multiple flow ports can be provided to effectively reduce the pressure when the essential oil is sprayed out from the circulation channel, thereby reducing the height when the essential oil is sprayed out and minimizing the risk of the essential oil flowing out from the outer wall. leakage situation.

Further, the valve body also includes a valve seat, which is fixed in the housing, and the valve seat is arranged at an end of the flow chamber away from the bottle body, and the valve seat has a valve port. By arranging a valve seat, the end of the valve body away from the bottle body can be blocked; by arranging a valve port on the valve seat, the solenoid valve can control the flow of essential oils.

Further, the bottle mouth has a first hole section and a second hole section arranged in steps. The aperture of the first hole section is smaller than the aperture of the second hole section. The first hole section is arranged close to the bottle cap. The first hole section and the second hole section are arranged in a stepped manner. There is a first stepped surface between the sections. One end of the fixed iron core connected to the bottle mouth has a first section and a second section arranged in a stepped manner. The diameter of the first section is smaller than the inner diameter of the second section. A flow port is provided on the first section. , the second section is threadedly connected to the second hole section, there is a second step surface between the first section and the second section, and there is a sealing structure between the first step surface and the second step surface. The fixed iron core and the bottle mouth are threaded, which not only facilitates the disassembly of the device, but also reduces the production cost of the device while improving the disassembly and assembly efficiency of the device due to its simple structure and easy processing. ; A sealing structure is provided between the first step surface and the second step surface. When the fixed iron core and the bottle mouth are connected and fixed, the sealing structure can form a hard seal on the gap between the two, thereby preventing the essential oil in the bottle from leaking out. Gap leakage ensures the sealing effect of the device.

Further, the valve assembly further includes a second sealing member, the second sealing member is disposed on the outer wall of the moving iron core, and the second sealing member is located at an end of the moving iron core close to the valve port, and the second sealing member can communicate with the valve port. Fit to seal. By arranging the above structure, the second sealing member can block the connection between the moving iron core and the valve port to achieve sealing of the connection between the moving iron core and the valve port. This can effectively reduce the leakage of essential oil in the device, thereby effectively reducing the leakage of essential oil in the device. Improves the sealing effect of the device.

Further, the valve body also includes an elastic member. The elastic member is arranged between the fixed iron core and the moving iron core. One end of the elastic member offsets the fixed iron core. The other end of the elastic member is located in the third flow channel and is in contact with the moving iron core. The core offsets each other. With this arrangement, the elastic force of the elastic member can act on the moving iron core together with the gravity of the moving iron core itself, so that the moving iron core is in a position to block the valve port, thereby realizing the blocking function of the moving iron core.

Further, the bottle body is also provided with an air inlet channel. The air inlet channel is located between the bottle body and the bottle cap. The air inlet channel extends along the circumferential direction of the bottle body. One end of the air inlet channel is connected to the outside world, and the other end of the air inlet channel is connected to the outside world. One end is connected to the inside of the bottle. This can ensure that the air pressure inside the bottle is equal to the air pressure of the external environment and remains in a balanced state. This allows the essential oil to flow more smoothly during the use of the device, thereby facilitating the use of the device.

Further, the solenoid valve also includes a fixed frame and a coil assembly. The fixed frame is connected to the bottle body. The valve body and the coil assembly are fixed on the fixed frame, and the coil assembly is arranged around the outer periphery of the valve body. By arranging the above structure, the normal operation of the solenoid valve can be ensured, and at the same time, the coil assembly and the valve body are fixed on the fixed frame, which can ensure the stability of the device during operation.

Further, the bottle body has a containing cavity, the opening is connected with the containing cavity, a plurality of first connecting parts are provided on the outer wall of the bottle body close to the bottle mouth, and the plurality of first connecting parts are arranged on the outer wall of the bottle body at annular intervals. , a plurality of second connecting parts are provided on the inner wall of the bottle cap, and the plurality of second connecting parts are arranged at annular intervals on the inner wall of the bottle cap. The first connecting parts and the second connecting parts are arranged in one-to-one correspondence, and the second connecting parts are arranged in a one-to-one correspondence. The bottom part includes an avoidance cavity and a limit cavity. The avoidance cavity and the limit cavity are arranged along the circumference of the bottle cap, and the avoidance cavity is connected with the limit cavity. An avoidance opening is provided on the side of the avoidance cavity close to the bottle body, and the avoidance opening is connected to the avoidance cavity. The cavities are connected, and the escape port is provided correspondingly with the first connection part. The first connection part can enter the escape cavity through the escape opening, and the first connection part can enter the limiting cavity through the escape cavity. Through the above arrangement, the first connection part and the second connection part can limit the rotation angle of the bottle cap, facilitate the installation and removal of the bottle cap, and further facilitate the user to add essential oils into the bottle, improving the adding speed and efficiency of essential oils.

Furthermore, there is a guide structure between the first connecting part and the limiting cavity, and the guiding structure can guide the first connecting part to rotate into the limiting cavity. Through the above arrangement, the connection and cooperation between the bottle cap and the opening can be facilitated, and the installation efficiency of the two can be improved, thereby ensuring that both the bottle cap and the opening within a certain dimensional tolerance range can be effectively tightened.

Further, the first connecting part has a front end and a rear end arranged oppositely, the front end of the first connecting part is arranged close to the limiting cavity, the front end of the first connecting part is provided with a first guide part, and the limiting cavity has an oppositely arranged front end and a rear end. At the rear end, the front end of the limiting cavity is disposed close to the accommodating cavity. The front end of the limiting cavity is provided with a second guide portion, and the first guide portion can guide in cooperation with the second guide portion.

Further, a first cross-sectional structure is provided on a side of the front end of the first connection part away from the bottle cap, and the distance between the first cross-section structure and the top of the bottle mouth gradually increases along the direction from the rear end to the front end of the first connection part. decreases, a second section structure is provided on the inside of the front end of the limiting cavity, extending in the direction from the front end to the rear end of the limiting cavity, the distance between the second section structure and the top of the bottle cap gradually decreases, and the first section structure forms The first guide part and the second cross-section structure form the second guide part. Through the above arrangement, the first guide part and the second guide part can cooperate and guide each other, thereby making the docking between the first connection part and the limiting cavity more accurate, ensuring the accuracy of the connection between the two.

Further, the end surface of the bottle cap facing the bottle body is a convex surface, and the axis of the convex surface coincides with the axis of the bottle cap. Through the above arrangement, the essential oil can be prevented from flowing along the gap of the bottle cap 12 to the outside of the bottle body and causing leakage, thereby effectively ensuring the service life of the device and improving the user experience.

Further, the valve body has a drain channel connected to the bottle mouth, one end of the drain channel is connected to the flow port, the other end of the drain channel is connected to the valve port, and the edge of the valve port away from the end of the bottle body has an outward gradually expanding edge. First fillet. Through the above settings, it is convenient for the user to control the size of the essential oil dripping, which is beneficial to the device's precise control of the essential oil dripping, and improves the device's accuracy in controlling the essential oil dripping.

Furthermore, the outer edge of the end of the valve mouth away from the bottle body also has a second rounded corner, and the first rounded corner and the second rounded corner form a semicircular arc surface. Through the above settings, it not only ensures that the essential oil will not diffuse outwards, but also reduces the production cost of the device due to its simple structure.

Further, the end of the valve body away from the bottle body has an annular protrusion, the end of the valve mouth away from the bottle body penetrates the annular protrusion, and the end surface of the annular protrusion away from the bottle body is an arc-shaped surface. Through the above settings, the volume of the essential oil when dripping can be further ensured to be constant, and the dripping of the essential oil can be made smoother.

Further, the valve seat has a first section and a second section arranged in a stepped manner, the valve port passes through the first section and the second section, the outer diameter of the first section is smaller than the outer diameter of the second section, and the gap between the first section and the second section is There is a stepped surface between them, and the shell is set on the outer periphery of the first section and contacts the stepped surface. Through the above arrangement, a stepped surface structure is formed between the first section and the second section to fix the valve seat. At the same time, the structure is simple and easy to process.

Further, the valve port has a first hole section and a second hole section arranged in a stepped manner. The inner diameter of the first hole section is greater than the inner diameter of the second hole section. The first hole section forms the valve mouth, and the second hole section is away from the bottle body. The inner diameter of one end gradually increases toward the direction away from the bottle body. Through the above arrangement, this part can form a throttling structure to limit the flow of essential oil, thereby facilitating the device's control of the flow of essential oil and improving the control accuracy of the flow of essential oil.

Further, the length of the annular protrusion on the axis is greater than or equal to 0.5 mm. Through the above settings, it is possible to ensure that the throttling structure has a long enough throttling length to ensure the throttling effect of the throttling structure on the essential oil. This makes it as easy as possible for the device to control the flow of essential oil and ensures that the size of each drop of essential oil is the same. .

Further, the radius of the arcuate surface is less than or equal to 1 mm. Through the above arrangement, the diffusion of essential oil at the end of the valve port can be reduced, thereby effectively controlling the volume of the essential oil when it drips, so that the volume of the essential oil will not be too large or too small, and it is more convenient for the device to detect the dripping of the essential oil. control.

Description of the drawings

The description and drawings that constitute a part of this application are used to provide a further understanding of this application. The illustrative embodiments and their descriptions of this application are used to explain this application and do not constitute an improper limitation of this application. In the attached picture:

Figure 1 shows a schematic cross-sectional view of the valve assembly provided by the present application;

Figure 2 shows an enlarged view of position A in Figure 1;

Figure 3 shows a schematic structural diagram of the bottle body provided by the embodiment of the present application;

Figure 4 shows a schematic structural diagram of a bottle cap provided by an embodiment of the present application;

Figure 5 shows a schematic cross-sectional view of the valve seat provided by the embodiment of the present application.

Among them, the above-mentioned drawings include the following reference signs:
11. Bottle body; 12. Bottle cap; 13. First connection part; 14. First section structure; 121. Second connection part; 122. Avoidance cavity; 123. Limiting cavity; 124. Second section structure;
21. Fixed frame; 22. Flow port; 23. Valve port; 24. Coil assembly; 25. Fixed iron core; 26. Housing; 27. Moving iron core; 28. Valve seat; 281. First section; 282. Second section; 29, sealing structure; 30, second seal; 40, elastic member; 50, air inlet channel; 60, anti-slip groove; 70, convex surface.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application or its application or uses. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

As shown in Figures 1 and 2, this application provides a valve assembly, which includes a bottle and a solenoid valve. Among them, the bottle body includes a bottle body 11 and a bottle cap 12. One end of the bottle body 11 is provided with an opening, and the other end of the bottle body 11 is provided with a bottle mouth. The bottle cap 12 is provided at the opening, and the solenoid valve is provided at the bottle mouth. The valve includes a valve body, which has a flow port 22 and a valve port 23 arranged oppositely. The valve body is connected to the bottle mouth, and the flow port 22 is located in the bottle mouth. The flow port 22 is set toward the side wall of the bottle body 11, and the valve port 23 is connected to the bottle mouth. The flow port 22 is connected, and the valve port 23 has a relatively set open state and a closed state. Among them, in the embodiment of the present application, the flow port 22 is arranged along the horizontal direction toward the side wall of the bottle body 11. The above solution is simple and easy to process, and can prevent the essential oil from splashing while avoiding increasing the production cost of the device.

Applying the technical solution of this application, the flow port 22 is set toward the side wall of the bottle body 11. When the valve port 23 is switched from the open state to the closed state, the essential oil in the solenoid valve will splash from the flow port 22 to the bottle body 11. On the inner side wall of the bottle body 11, the inner side wall of the bottle body 11 is arranged in the vertical direction. By arranging the above structure, the essential oil can be buffered to prevent the essential oil from splashing onto the bottle cap 12, and at the same time, the essential oil attached to the inner wall can be allowed to flow vertically into the bottle body 11, thereby preventing the essential oil from flowing out of the bottle. The bottle cap 12 gradually flows to the outer wall to cause leakage, which effectively ensures the service life of the device and improves the user experience.

Further, the valve body includes a fixed iron core 25 , a housing 26 and a moving iron core 27 . Among them, the fixed iron core 25 is connected to the mouth of the bottle, and the fixed iron core 25 is partially arranged in the bottle body 11, and a circulation channel is provided in the fixed iron core 25. One end of the circulation channel forms a flow port 22, and the shell 26 and the fixed iron core 25 is connected to one end away from the bottle body, the housing 26 has a flow chamber, and the other end of the flow channel is connected to the flow chamber. The end of the housing 26 away from the fixed iron core 25 has a valve port 23, and the valve port 23 is connected to the flow chamber. The moving iron core 27 is movably arranged in the flow chamber, and the moving iron core 27 is used to open or block the valve port 23. By arranging the above structure, the valve body can open or block the valve port 23 through the movable iron core 27, which can control the flow rate of the essential oil in the bottle body 11, thereby reducing the waste of essential oil during use.

Specifically, the circulation channel includes a first circulation channel and a second circulation channel that are connected to each other. The end of the first circulation channel is located on the side wall of the fixed iron core 25. The fixed iron core 25 is connected to the bottle body 11 through the first circulation channel. , the moving iron core 27 is provided with a third flow channel, one end of the third flow channel communicates with the flow chamber, the other end of the third flow channel can be connected with the valve port 23, the second flow channel and the third flow channel are both along the valve axial extension of the body. By arranging the above structure, when the essential oil in the bottle body 11 flows into the interior of the fixed iron core 25 and the moving iron core 27 from the first circulation channel, since the fixed iron core 25 and the moving iron core 27 have edges along the With the axially extending circulation channel, the essential oil can flow along the circulation channel to the valve port 23 under the action of gravity, which can reduce the resistance of the essential oil during flow, thus improving the flow efficiency of the essential oil.

Among them, in the embodiment of the present application, the first circulation channel is provided through the side wall of the stator core 25, and the extension direction of the first circulation channel is perpendicular to the extension direction of the second circulation channel. When the essential oil flows from the circulation channel When it splashes out, the right-angled structure can produce a certain resistance to the essential oil, which can reduce the pressure when the essential oil splashes in the circulation channel. Of course, in other embodiments, the extension direction of the first flow channel and the extension direction of the second flow channel are set at other angles, as long as the anti-splash requirements of the device can be met.

Furthermore, the first circulation channel has a plurality of circulation openings 22 , and the plurality of circulation openings 22 are annularly arranged on the side walls of the stator core 25 . This allows the essential oil in the bottle 11 to flow into the solenoid valve through the plurality of flow ports 22, thereby increasing the flow rate of the essential oil. At the same time, when the solenoid valve switches from the open state to the closed state, the essential oil in the solenoid valve can flow from the multiple flow ports 22 to the solenoid valve. A plurality of flow openings 22 are sprayed onto the inner wall of the bottle body 11. By providing a plurality of flow openings 22, the pressure when the essential oil is sprayed out from the circulation channel can be effectively reduced, thereby reducing the momentum of the essential oil when it is sprayed out and avoiding the risk of leakage as much as possible. Essential oils are splashing. In the embodiment of the present application, there are two circulation openings 22 , and the two circulation openings 22 are respectively arranged at both ends of the first circulation channel. By arranging the above structure, the essential oil can be sprayed out from the circulation channel evenly, thereby It can ensure the stability of the device during operation.

Specifically, the valve body also includes a valve seat 28 , which is fixed in the housing 26 , and is disposed at an end of the flow chamber away from the bottle body. The valve seat 28 has a valve port 23 . By arranging the valve seat 28, the end of the valve body away from the bottle body can be blocked; by arranging the valve port 23 on the valve seat 28, the solenoid valve can control the flow of essential oil.

Furthermore, the bottle mouth has a first hole section and a second hole section arranged in steps. The aperture of the first hole section is smaller than the aperture of the second hole section. The first hole section is arranged close to the bottle cap 12. The first hole section and the second hole section are arranged in a stepped manner. There is a first stepped surface between the hole sections. One end of the fixed iron core 25 connected to the bottle mouth has a first section and a second section arranged in a stepped manner. The diameter of the first section is smaller than the inner diameter of the second section. The first section is provided with a The second section of the flow port 22 is threadedly connected to the second hole section. There is a second stepped surface between the first section and the second section, and a sealing structure 29 is provided between the first stepped surface and the second stepped surface. The fixed iron core 25 is threadedly connected to the bottle mouth, which not only facilitates the disassembly of the device, but also improves the disassembly and assembly efficiency of the device while correspondingly reducing the production of the device because the threaded structure has the characteristics of simple structure and easy processing. cost. A sealing structure 29 is provided between the first step surface and the second step surface. When the fixed iron core 25 is connected and fixed to the bottle mouth, the sealing structure 29 can form a hard seal on the gap between the two, thereby preventing the bottle body 11 from The essential oil inside leaks from the gap, ensuring the sealing effect of the device. The sealing structure 29 can be an independent component, or can be an integrally formed structure with the bottle body 11 or the fixed iron core 25 .

In this embodiment, the sealing structure 29 and the bottle body 11 are an integrally formed structure, and the sealing structure 29 has a semicircular cross-section and is arranged around the bottle mouth along the circumferential direction of the first step surface. Of course, the cross-section of the sealing structure 29 can also be set in a circumferential shape or a square shape, as long as it can meet the sealing requirements of the device.

Specifically, the valve assembly also includes a second sealing member 30. The second sealing member 30 is disposed on the outer wall of the moving iron core 27, and the second sealing member 30 is located at one end of the moving iron core 27 close to the valve port 23. The sealing member 30 can cooperate with the valve port 23 for sealing. By arranging the above structure, the second sealing member 30 can block the connection between the moving iron core 27 and the valve port 23 to achieve the sealing of the connection between the moving iron core 27 and the valve port 23, which can effectively reduce the internal pressure of the device. leakage of essential oils, thus improving the sealing effect of the device.

In this embodiment, an end of the moving iron core 27 close to the valve port 23 is provided with an annular groove, and the first sealing member is provided in the annular groove. By arranging the above structure, the installation and disassembly of the first sealing member can be made more convenient. It is simple, and the above structure is also easy to process, thereby further reducing the production cost of the device.

Further, the valve body also includes an elastic member 40. The elastic member 40 is disposed between the fixed iron core 25 and the moving iron core 27. One end of the elastic member 40 can move against the fixed iron core 25, and the other end of the elastic member 40 is located at the third In the three circulation channels, and offset with the moving iron core 27. With this arrangement, the elastic force of the elastic member 40 and the gravity of the moving iron core 27 can act on the moving iron core 27 together, so that the moving iron core 27 is in a position to block the valve port 23, thereby realizing the sealing of the moving iron core 27. blocking function. Among them, the elastic member 40 is specifically a return spring. Such an arrangement not only has low production cost, but also has a simple structure and is light in weight, which is conducive to lightweighting the device.

Specifically, the bottle body is also provided with an air inlet channel 50. The air inlet channel 50 is located between the bottle body 11 and the bottle cap 12. The air inlet channel 50 extends along the circumferential direction of the bottle body 11. One end of the air inlet channel 50 is connected to the outside world. Communicated, the other end of the air inlet channel 50 is communicated with the inside of the bottle body 11. This can ensure that the air pressure inside the bottle 11 is equal to the air pressure of the external environment and remains in a balanced state. This allows the essential oil to flow more smoothly during use of the device, thereby facilitating the use of the device.

Further, the solenoid valve also includes a fixed frame 21 and a coil assembly 24. The fixed frame 21 is connected to the bottle body 11. The valve body and the coil assembly 24 are fixed on the fixed frame 21, and the coil assembly 24 is arranged around the outer periphery of the valve body. By arranging the above structure, the normal operation of the solenoid valve can be ensured. At the same time, the coil assembly 24 and the valve body are fixed on the fixing frame 21 to ensure the stability of the device during operation.

As shown in Figures 3 and 4, a plurality of first connecting portions 13 are provided on the outer wall of the bottle body 11 close to the opening. The plurality of first connecting portions 13 are arranged at annular intervals on the outer wall of the bottle body 11. The bottle cap A plurality of second connecting parts 121 are provided on the inner wall of the bottle cap 12. The plurality of second connecting parts 121 are arranged at annular intervals on the inner wall of the bottle cap 12. The first connecting parts 13 and the second connecting parts 121 are arranged in one-to-one correspondence. The second connection part 121 includes an escape cavity 122 and a limit cavity 123. The escape cavity 122 and the limit cavity 123 are arranged along the circumferential direction of the bottle cap 12, and the escape cavity 122 is connected with the limit cavity 123. The escape cavity 122 is close to the bottle body. An escape opening is provided on one side of 11. The escape opening is connected with the escape cavity 122. The escape opening is provided correspondingly to the first connection part 13. The first connection part 13 can enter the escape cavity 122 through the escape opening, and the first connection part 13 can pass through the escape opening. The escape cavity 122 enters the limiting cavity 123 .

A plurality of first connecting parts 13 are provided on the bottle body 11. The plurality of first connecting parts 13 are arranged at annular intervals on the outer wall of the bottle body 11. A plurality of second connecting parts 121 are provided on the bottle cap 12. The second connecting parts 121 are annularly spaced on the inner wall of the bottle cap 12. When the device is installed, the bottle cap 12 can rotate relative to the bottle body 11 to allow the first connecting parts 13 to move in the avoidance cavity 122 or the limiting cavity 123. , since the plurality of first connection parts 13 and the plurality of second connection parts 121 are arranged in a split structure, and according to the rotation angle formula of the bottle cap, through the above arrangement, the rotation angle of the bottle cap 12 can be limited to 180° Within this, the angle required when the bottle cap 12 and the opening are completely tightened or completely loosened can be reduced, thereby facilitating the installation and disassembly of the bottle cap 12 and the opening, reducing the difficulty of disassembly and assembly of the two, and thus making it easier for the user to Adding essential oils into the bottle improves the speed and efficiency of adding essential oils. At the same time, the end surface of the bottle cap 12 facing the bottle body 11 is a convex surface 70. The above structure can prevent the essential oil from flowing along the gap of the bottle cap 12 to the outside of the bottle body and causing leakage, thereby effectively ensuring the service life of the device and improving the user's use. experience.

Among them, the bottle cap 12 has an unlocking state and a stop state that are relatively arranged. The bottle cap 12 can rotate relative to the bottle body 11 so that the first connecting part 13 is located in the avoidance cavity 122 or the limiting cavity 123. When the first connecting part 13 is located in When the bottle cap 12 is in the avoidance cavity 122, the bottle cap 12 is in an unlocked state; when the first connecting part 13 is located in the limiting cavity 123, the bottle cap 12 is in a blocking state.

In this embodiment, the number of the first connecting parts 13 and the second connecting parts 121 is set to four and the cross-sections of the first connecting parts 13 and the second connecting parts 121 are rectangular shapes. The plurality of first connecting parts 13 Evenly arranged on the outer wall of the bottle body 11, the second connecting part 121 and the first connecting part 13 are arranged in one-to-one correspondence. This not only rationally utilizes the space of the bottle body 11 and the bottle cap 12, but also meets the assembly requirements of the bottle cap 12 and the opening. Of course, the number of the first connecting portion 13 and the second connecting portion 121 can also be set to other numbers, and the specific setting can be selected according to the use environment of the device.

Specifically, there is a guide structure between the first connecting part 13 and the limiting cavity 123 , and the guiding structure can guide the first connecting part 13 to rotate into the limiting cavity 123 . By arranging the above structure, when the bottle cap 12 and the opening are switched from the unlocking position to the stop position, the guide structure can guide the bottle cap 12 and the opening, which facilitates the connection and cooperation between the bottle cap 12 and the opening, thereby improving the stability of the two. The installation efficiency can ensure that the bottle cap 12 and the opening within a certain dimensional tolerance range can be effectively tightened.

Further, the first connecting part 13 has a front end and a rear end that are oppositely arranged. The front end of the first connecting part 13 is disposed close to the limiting cavity 123 . The front end of the first connecting part 13 is provided with a first guide part. The limiting cavity 123 has a The front end and the rear end of the limiting cavity 123 are arranged oppositely, and the front end of the limiting cavity 123 is disposed close to the accommodation cavity. The front end of the limiting cavity 123 is provided with a second guide portion, and the first guide portion can guide in cooperation with the second guide portion. In this way, when the first connecting part 13 is connected to the limiting cavity 123, the first guiding part and the second guiding part can cooperate and guide each other, so that the docking of the first connecting part 13 and the limiting cavity 123 is more accurate and ensures The accuracy of the connection between the two.

Specifically, a first cross-section structure 14 is provided on the side of the front end of the first connection part 13 away from the bottle cap 12 . The first cross-section structure 14 is in contact with the opening in the direction from the rear end to the front end of the first connection part 13 . The distance between the tops gradually decreases. A second cross-section structure 124 is provided on the inside of the front end of the limit cavity 123 and extends from the front end to the rear end of the limit cavity 123. The distance between the second cross-section structure 124 and the top of the bottle cap 12 gradually decreases. Reduced, the first tangential structure 14 forms a first guide part, and the second tangential structure 124 forms a second guide part. The first guide part and the second guide part are configured as tangential structures, which makes the processing of the first guide part and the second guide part simpler and more convenient, which can reduce the production cost of the device. At the same time, due to the first tangential structure 14 and The extension direction of the second sectional structure 124 has an angle with the horizontal direction, thereby making the transition between the bottle cap 12 and the opening smoother when mating and connecting, which is beneficial to maintaining stability during guidance.

Furthermore, the bottle cap 12 is also provided with anti-slip grooves 60 , the anti-slip grooves 60 extend in the vertical direction, and the anti-slip grooves 60 are arranged in a circumferential array along the outer wall of the bottle cap 12 . In this way, during the user's use, the anti-slip groove 60 can increase the friction between the user and the bottle cap 12, thereby facilitating the user to exert force on the bottle cap 12 to tighten or loosen the bottle cap 12 and the opening, and thereby It is convenient to install and disassemble the bottle cap 12 and the opening. Of course, the anti-slip groove 60 can also be provided with other anti-slip structures such as anti-slip protrusions or anti-slip pads, as long as it can meet the anti-slip requirements of the device. The specific settings can be selected according to the use environment of the device, which can improve the scope of application of the device.

Specifically, the end surface of the bottle cap 12 facing the bottle body 11 is a convex surface 70 , and the axis of the convex surface 70 coincides with the axis of the bottle cap 12 . With this arrangement, when the essential oil in the bottle 11 splashes onto the bottle cap 12 due to shaking, the essential oil can flow along the convex surface 70 to the center of the bottle cap 12 and drips back into the bottle body 11. The above structure can prevent the essential oil from flowing along the gap of the bottle cap 12 to the outside of the bottle body and causing leakage, thereby effectively ensuring the service life of the device and improving the user's comfort. Use experience.

Further, the valve body has a drain channel connected to the bottle mouth. One end of the drain channel is connected to the flow port 22, and the other end of the drain channel is connected to the valve port 23. The edge of the valve port 23 away from the end of the bottle body has an outward edge. The diverging first fillet.

In this way, the inner diameter of the end of the valve port 23 away from the bottle is set to gradually increase in the direction away from the bottle. By arranging the above structure, when the valve port 23 is in an open state, the essential oil can flow along the valve port 23 to the end away from the bottle mouth. Since the end of the valve port 23 away from the bottle mouth has a variable diameter structure, this can prevent the essential oil from flowing along the The end diffuses to the outer wall of the valve port 23, ensuring that the volume of the essential oil at the valve port 23 will not change, thereby facilitating the user to control the size of the essential oil when it drips, which is conducive to the precise control of the device when the essential oil drips, and improves the efficiency of the device Control precise dripping of essential oils.

Furthermore, the outer edge of the end of the valve port 23 away from the bottle body also has a second rounded corner, and the first rounded corner and the second rounded corner form a semicircular arc surface. The above-mentioned structure is simple and easy to process, which not only ensures that the essential oil will not diffuse outwards, but also reduces the production cost of the device.

Specifically, the end of the valve body away from the bottle body has an annular protrusion, the end of the valve port 23 away from the bottle body penetrates the annular protrusion, and the end surface of the annular protrusion away from the bottle body is an arc-shaped surface. In this way, the end surface of the annular protrusion is set as an arc surface. When the essential oil flows from the second flow port to the end surface of the annular protrusion, it will diffuse to the lowest point of the arc surface and will not spread to the annular protrusion along the end surface. The outer wall of the device can further ensure a constant volume of essential oil when dripping through the above structure, and make the dripping of essential oil smoother.

As shown in Figure 5, in the embodiment of the present application, the arc-shaped mask body has a semicircular structure. The above-mentioned arrangement is simple in structure, which can not only meet the dripping requirements of essential oils, but also make reasonable use of the space of the annular bulge, and will not It occupies other space of the device, thus facilitating the miniaturization of the device. Of course, the end surface of the end of the annular protrusion away from the bottle body can also be configured as a concave structure, as long as it can ensure that the essential oil will not spread to the outer wall of the annular protrusion.

Further, the valve seat 28 has a stepped first section 281 and a second section 282. The valve port 23 runs through the first section 281 and the second section 282. The outer diameter of the first section 281 is smaller than the outer diameter of the second section 282. There is a stepped surface between the first section 281 and the second section 282, and the housing 26 is sleeved on the outer periphery of the first section 281 and contacts the stepped surface. With this arrangement, during the assembly process of the valve body, due to the different outer diameters of the first section 281 and the second section 282, a stepped surface is formed at the connection between the outer walls of the two sections, and one end of the housing 26 can be connected to the stepped surface, thereby The valve seat 28 can be fixed, which meets the installation requirements of the valve seat 28. At the same time, the above structure is simple and easy to process, thereby reducing the production cost of the device. Of course, the outer diameter of the first section 281 can also be set to be equal to the outer diameter of the second section 282. The specific setting can be selected according to the use environment of the device, which can improve the applicable scope of the device.

Specifically, the valve port 23 has a first hole section and a second hole section arranged in a stepped manner. The inner diameter of the first hole section is greater than the inner diameter of the second hole section. The first hole section forms the valve mouth, and the second hole section is away from the bottle. The inner diameter of one end of the body gradually increases toward the direction away from the bottle body. By arranging the above structure, the inner diameter of the valve port is set to be larger than the inner diameter of the second hole section, so that a throttling structure can be formed in this part. When the essential oil flows from the valve mouth to the second hole section, the throttling structure can limit the essential oil. flow, thereby facilitating the device's control of the flow of essential oils and improving the control accuracy of the flow of essential oils.

Further, the length of the annular protrusion on the axis is L1, where L1 is greater than or equal to 0.5 mm. When L1 is less than 0.5mm, the length of the throttling structure on the axis is too short, which will reduce the throttling effect of the throttling structure, making it impossible to accurately control the flow of essential oil, and will also cause the essential oil to penetrate into the periphery of the annular bulge. The size of each drop of essential oil cannot be guaranteed. Therefore, setting L1 to greater than or equal to 0.5mm can ensure that the throttling structure has a long enough throttling length, thereby ensuring the throttling effect of the throttling structure on essential oils, which can facilitate the control of the flow of essential oils by the device as much as possible. , ensuring that each drop of essential oil is the same size.

Specifically, the radius of the arcuate surface is R1, where R1 is less than or equal to 1 mm. When R1 is greater than 1 mm, the essential oil will gather too much at the end of the valve port 23, causing the phenomenon of excessive essential oil. At the same time, the volume of the essential oil dripping will increase, making it inconvenient for the device to control the dripping of the essential oil. . Therefore, setting R1 to less than or equal to 1mm can reduce the diffusion of essential oil at the end of the valve port 23, thereby effectively controlling the volume of the essential oil when it drips, so that the volume of the essential oil will not be too large or excessive. Small, more convenient for the device to control the dripping of essential oils.

In this embodiment, the essential oil in the bottle 11 can also be replaced with mosquito repellent, air freshener, air disinfectant, etc.

Applying the technical solution of this application, the flow port 22 is set toward the side wall of the bottle body 11. When the valve port 23 is switched from the open state to the closed state, the essential oil in the solenoid valve will splash from the flow port 22 to the bottle body 11. On the inner side wall of the bottle body 11, the inner side wall of the bottle body 11 is arranged in the vertical direction. By arranging the above structure, the essential oil can be buffered to prevent the essential oil from splashing onto the bottle cap 12, and at the same time, the essential oil attached to the inner wall can be allowed to flow vertically into the bottle body 11, thereby preventing the essential oil from flowing out of the bottle. The bottle cap 12 gradually flows to the outer wall to cause leakage, which effectively ensures the service life of the device and improves the user experience. At the same time, the bottle body is also provided with an air inlet channel 50, which can ensure that the air pressure inside the bottle body 11 is equal to the air pressure of the external environment and remains in a balanced state, so that the essential oil can flow more smoothly during the use of the device. , thus facilitating the use of the device.

It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular forms are also intended to include the plural forms unless the context clearly indicates otherwise. Furthermore, it will be understood that when the terms "comprises" and/or "includes" are used in this specification, they indicate There are features, steps, operations, means, components and/or combinations thereof.

The relative arrangement of components and steps, numerical expressions, and numerical values set forth in these examples do not limit the scope of the application unless specifically stated otherwise. At the same time, it should be understood that, for convenience of description, the dimensions of various parts shown in the drawings are not drawn according to actual proportional relationships. Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the authorized specification. In all examples shown and discussed herein, any specific values are to be construed as illustrative only and not as limiting. Accordingly, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters refer to similar items in the following figures, so that once an item is defined in one figure, it does not need further discussion in subsequent figures.

In the description of this application, it should be understood that the orientation indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom", etc. Or positional relationship is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description. Without explanation to the contrary, these positional words do not mean It indicates and implies that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of this application; the orientation words "inside and outside" refer to the outline of each component itself. inside and outside.

For the convenience of description, spatially relative terms can be used here, such as "on...", "on...", "on the upper surface of...", "above", etc., to describe what is shown in the figure. The spatial relationship between one device or feature and other devices or features. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a feature in the figure is turned upside down, then one feature described as "above" or "on top of" other features or features would then be oriented "below" or "below" the other features or features. under other devices or structures". Thus, the exemplary term "over" may include both orientations "above" and "below." The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, it should be noted that the use of words such as "first" and "second" to define parts is only to facilitate the distinction between corresponding parts. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood. To limit the scope of protection of this application.

The above descriptions are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included in the protection scope of this application.

Claims

A valve assembly, characterized in that the valve assembly includes:

The bottle body includes a bottle body (11) and a bottle cap (12). One end of the bottle body (11) is provided with an opening, and the other end of the bottle body (11) is provided with a bottle mouth. A bottle cap (12) is provided at the opening;

A solenoid valve is arranged at the mouth of the bottle. The solenoid valve includes a valve body. The valve body has a flow port (22) and a valve port (23) arranged oppositely. The flow port (22) is located on the bottle. In the mouth, the flow port (22) is set toward the side wall of the bottle (11), the valve port (23) is connected with the flow port (22), and the valve port (23) has oppositely arranged Open state and closed state.
The valve assembly according to claim 1, wherein the valve body includes:

The fixed iron core (25) is connected to the mouth of the bottle. The fixed iron core (25) is partially set inside the bottle body (11), and a circulation channel is provided in the fixed iron core (25). One end of the circulation channel forms the circulation port (22);

The housing (26) is connected to one end of the fixed iron core (25) away from the bottle body. The housing (26) has a flow chamber, and the other end of the flow channel is connected to the flow chamber. One end of the housing (26) away from the stator core (25) has the valve port (23), and the valve port (23) is connected to the flow chamber;

A moving iron core (27) is movably arranged in the flow chamber, and the moving iron core (27) is used to open or block the valve port (23).
The valve assembly according to claim 2, characterized in that the flow channel includes a first flow channel and a second flow channel connected to each other, and an end of the first flow channel is located in the fixed iron core (25) On the side wall, the fixed iron core (25) is connected to the bottle body (11) through the first circulation channel, and a third circulation channel is provided on the moving iron core (27). The third circulation channel One end of the flow channel communicates with the flow chamber, and the other end of the third flow channel can be connected with the valve port (23). Both the second flow channel and the third flow channel are along the valve body. axial extension.
The valve assembly according to claim 3, characterized in that the first flow channel has a plurality of flow openings (22), and the plurality of flow openings (22) are annularly arranged in the fixed iron core (25). ) on the side wall.
The valve assembly according to claim 2, characterized in that the valve body further includes a valve seat (28) fixed in the housing (26), and the valve seat (28) is disposed in the circulation At one end of the cavity away from the bottle body, the valve seat (28) has the valve port (23).
The valve assembly according to claim 2, wherein the bottle mouth has a first hole section and a second hole section arranged in steps, and the aperture of the first hole section is smaller than the aperture of the second hole section, The first hole section is arranged close to the bottle cap (12). There is a first stepped surface between the first hole section and the second hole section. The fixed iron core (25) and the bottle mouth One end of the connection has a first section and a second section arranged in a stepped manner, the diameter of the first section is smaller than the inner diameter of the second section, the flow port (22) is provided on the first section, and the first section has a diameter smaller than the inner diameter of the second section. The second section is threadedly connected to the second hole section, there is a second step surface between the first section and the second section, and there is a sealing structure between the first step surface and the second step surface ( 29).
The valve assembly according to claim 2, characterized in that the valve assembly further includes a second seal (30), the second seal (30) is disposed on the outer wall of the moving iron core (27) on, and the second sealing member (30) is located at one end of the moving iron core (27) close to the valve port (23), and the second sealing member (30) can communicate with the valve port (23). ) with seal.
The valve assembly according to claim 3, characterized in that the valve body further includes an elastic member (40), the elastic member (40) is arranged on the fixed iron core (25) and the moving iron core (25). 27), one end of the elastic member (40) offsets the fixed iron core (25), and the other end of the elastic member (40) is located in the third flow channel and is in contact with the moving iron core. Core (27) offsets.
The valve assembly according to claim 1, characterized in that the bottle body is also provided with an air inlet channel (50), and the air inlet channel (50) is located between the bottle body (11) and the bottle cap. (12), the air inlet channel (50) extends along the circumferential direction of the bottle (11), one end of the air inlet channel (50) is connected to the outside world, and the air inlet channel (50) The other end is internally connected with the bottle body (11).
The valve assembly according to claim 1, characterized in that the solenoid valve further includes a fixed frame (21) and a coil assembly (24), the fixed frame (21) is connected to the bottle body (11), so The valve body and the coil assembly (24) are fixed on the fixing frame (21), and the coil assembly (24) is surrounding the outer periphery of the valve body.
The valve assembly according to claim 1, characterized in that the bottle body (11) has an accommodation cavity, the opening is connected with the accommodation cavity, and the outer side of the bottle body (11) close to the bottle mouth A plurality of first connecting parts (13) are provided on the wall. The plurality of first connecting parts (13) are arranged at annular intervals on the outer wall of the bottle body (11). The inner side of the bottle cap (12) A plurality of second connection parts (121) are provided on the wall, and the plurality of second connection parts (121) are arranged at annular intervals on the inner wall of the bottle cap (12). The first connection part (13) Provided in one-to-one correspondence with the second connection part (121), the second connection part (121) includes an escape chamber (122) and a limiting chamber (123). The escape chamber (122) and the limiting chamber The cavity (123) is arranged along the circumference of the bottle cap (12), and the escape cavity (122) is connected with the limiting cavity (123). The escape cavity (122) is close to the bottle body (123). 11) is provided with an escape opening on one side, the escape opening is connected with the escape cavity (122), the escape opening is provided corresponding to the first connection part (13), and the first connection part (13) The first connecting part (13) can enter the limiting cavity (123) through the avoiding cavity (122).
The valve assembly according to claim 11, characterized in that there is a guide structure between the first connection part (13) and the limiting cavity (123), and the guide structure can guide the first connection part (13) Rotate to the limiting cavity (123) for guidance.
The valve assembly according to claim 12, characterized in that the first connecting part (13) has a front end and a rear end arranged oppositely, and the front end of the first connecting part (13) is close to the limiting cavity ( 123) is provided, the front end of the first connecting part (13) is provided with a first guide part, the limiting cavity (123) has a front end and a rear end arranged oppositely, and the front end of the limiting cavity (123) is close to The accommodation cavity is provided with a second guide portion at the front end of the limiting cavity (123), and the first guide portion can guide in cooperation with the second guide portion.
The valve assembly according to claim 13, characterized in that a first section structure (14) is provided on the side of the front end of the first connection part (13) away from the bottle cap (12), along which The distance between the first cross-sectional structure (14) and the top of the bottle mouth gradually decreases in the direction from the rear end to the front end of the first connecting part (13), and the front end of the limiting cavity (123) A second section structure (124) is provided on the inside, extending from the front end to the rear end of the limiting cavity (123). The distance between the second section structure (124) and the top of the bottle cap (12) gradually increases. Reduced, the first tangential structure (14) forms the first guide part, and the second tangential structure (124) forms the second guide part.
The valve assembly according to claim 1, characterized in that the end surface of the bottle cap (12) facing the bottle body (11) is a convex surface (70), and the axis of the convex surface (70) is in line with the bottle. The axes of the cover (12) coincide with each other.
The valve assembly according to claim 1, characterized in that the valve body has a drainage channel connected to the bottle mouth, one end of the drainage channel is connected to the flow port (22), and the drainage channel The other end of the liquid channel is connected with the valve port (23), and the edge of the valve port (23) away from the end of the bottle body has a first rounded corner that gradually expands outward.
The valve assembly according to claim 16, characterized in that the outer edge of the valve port (23) away from the bottle body also has a second rounded corner, and the first rounded corner and the second rounded corner are Form a semicircular arc surface.
The valve assembly according to claim 17, characterized in that the end of the valve body away from the bottle body has an annular protrusion, and the end of the valve port (23) away from the bottle body runs through the annular protrusion. Protrusion, the end surface of the end of the annular protrusion away from the bottle body is the arc surface.
The valve assembly according to claim 5, characterized in that the valve seat (28) has a first section (281) and a second section (282) arranged in steps, and the valve port (23) passes through the first section (281) and a second section (282). One section (281) and the second section (282), the outer diameter of the first section (281) is smaller than the outer diameter of the second section (282), the first section (281) and the There is a stepped surface between the second sections (282), and the housing (26) is sleeved on the outer periphery of the first section (281) and contacts the stepped surface.
The valve assembly according to claim 19, characterized in that the valve port (23) has a first hole section and a second hole section arranged in a stepped manner, and the inner diameter of the first hole section is larger than the second hole section. The inner diameter of the first hole segment forms the valve opening, and the inner diameter of the end of the second hole segment away from the bottle body gradually increases in the direction away from the bottle body.
The valve assembly according to claim 18, wherein the length of the annular protrusion on the axis is greater than or equal to 0.5 mm.
The valve assembly according to claim 17, wherein the radius of the arcuate surface is less than or equal to 1 mm.