Valve assembly

Abstract

A bottle body (10) having a bottle mouth (11), wherein a fixing portion (12) is provided on the bottle body (10), the fixing portion (12) and the bottle mouth (11) are located on the same side of the bottle body (10), and the fixing portion (12) and the bottle mouth (11) are provided at an interval, and a locking groove is provided on the side wall of the fixing portion (12); a bottle body (10); and a solenoid valve (20) provided on the bottle mouth (11), having a connection port (21) and a valve port (22) communicating with each other, the connection port (21) and the bottle mouth (11) being communicated, and a locking projection (23) is further provided on the side portion of the solenoid valve (20), and the locking projection (23) is locked and engaged with the locking groove so as to limit the displacement of the solenoid valve (20) in the axial direction with respect to the bottle body (10); a solenoid valve (20); and including a valve assembly.

Description

Technical Field

[0001] This application claims the priority of a patent application with the application number 2022213683656 and the invention title "Valve Assembly", which was filed with the China National Intellectual Property Administration on June 2, 2022.

[0002] This application relates to the technical field of valve assemblies, and specifically to valve assemblies.

Background Art

[0003] Currently, a conventional valve assembly includes a bottle body and a solenoid valve. The bottle body is provided with a bottle mouth, and the solenoid valve is provided at the bottle mouth. However, in the prior art, the solenoid valve and the bottle body are connected by a screw at the bottle mouth. The weight of the solenoid valve is concentrated entirely at the bottle mouth. Moreover, most of the material of the bottle body is plastic, and this material has low load-bearing capacity and durability. Therefore, after the solenoid valve and the bottle body have been loosened and tightened multiple times, a screw slipping phenomenon appears in the screw structure between the solenoid valve and the bottle body, resulting in looseness and even detachment between the two, which further affects the normal use of the device.

Summary of the Invention

[0004] This application provides a valve assembly for solving the problem of low connection strength between a solenoid valve and a bottle body in the prior art.

[0005] This application provides a valve assembly including a bottle body having a bottle mouth, with a fixing part provided. The fixing part and the bottle mouth are located on the same side and are provided at an interval. A locking groove is provided on the side wall of the fixing part, and a solenoid valve provided at the bottle mouth, which has a connection port and a valve port communicating with each other. The connection port and the bottle mouth are in communication. A locking protrusion is further provided on the side part of the solenoid valve, and the locking protrusion is locked and engaged with the locking groove so as to limit the axial displacement of the solenoid valve with respect to the bottle body.

[0006] When the technical solution of this application is applied, a fixing part is provided on the bottle body, and a locking groove is provided on the side wall of the fixing part. A locking protrusion is provided on the side part of the solenoid valve. The solenoid valve and the bottle body can be fixedly connected by the connection and engagement of the locking groove and the locking protrusion. Designed in this way, after the solenoid valve and the bottle body are installed, the locking groove and the locking protrusion can effectively reduce the situation of receiving force at the bottle mouth due to the acting force that restricts each other, thereby making the overall force bearing of the bottle body more uniform and ensuring the stability after the connection between the solenoid valve and the bottle body. It can prevent phenomena such as looseness, rattling, and even falling off due to multiple loosening and tightening of the two, and at the same time, the use of the device is also facilitated.

[0007] Furthermore, the locking groove is located on one side of the fixing part close to the bottle mouth, and one end of the locking groove has an opening. The locking groove extends along the circumferential direction of the fixing part, and the locking protrusion enters the locking groove from the opening and is locked and engaged with the locking groove. Designed in this way, the locking protrusion is moved into the locking groove by a rotational method. The above operation is simple and convenient, can reduce the installation difficulty of the device, and improve the installation efficiency of the device.

[0008] Furthermore, the locking groove includes an avoidance segment and a position limiting segment provided sequentially along the circumferential direction. An opening is provided at one end of the avoidance segment away from the position limiting segment. The bottom of the position limiting segment is lower than the bottom of the avoidance segment. By the engagement of the locking protrusion and the position limiting segment, the displacement of the locking protrusion in the axial direction can be limited, and the rotation of the locking protrusion in the locking groove can be limited. Designed in this way, during the installation process of the device, the solenoid valve can rotate to the avoidance segment and then move along the axis to the position limiting segment and be limited and engaged with the position limiting segment, thereby improving the stability after the connection between the locking protrusion and the locking groove, which is beneficial to improving the connection stability between the solenoid valve and the bottle body.

[0009] Furthermore, a plurality of fixing parts are provided. The plurality of fixing parts are provided surrounding the outer periphery of the bottle mouth. Each fixing part is provided with one locking groove. The plurality of locking grooves are sequentially provided along the rotation direction of the locking protrusion. The solenoid valve has a plurality of locking protrusions, and the locking protrusions and the locking grooves are provided in a one-to-one correspondence. By providing the plurality of locking grooves and the plurality of locking protrusions, the connection between the solenoid valve and the bottle body can be made stronger, and at the same time, the overall structural strength after the connection of both can be improved.

[0010] Furthermore, the valve assembly further includes an elastic preloading member provided between the solenoid valve and the bottle body and capable of providing an axial elastic force to the solenoid valve. Designed in this way, due to the elastic force of the elastic preloading member, the locking protrusion and the locking groove in the solenoid valve can be brought into close contact and connected, preventing the phenomenon that the locking protrusion falls off from the locking groove due to the shaking of the device, and further ensuring the stability after the connection between the locking protrusion and the locking groove.

[0011] Furthermore, the bottle body is provided with a receiving groove. The receiving groove is provided surrounding the outer periphery of the bottle mouth. One end of the elastic preloading member is located in the receiving groove, and the other end of the elastic preloading member abuts against the solenoid valve. Designed in this way, the elastic preloading member can be positioned, ensuring the accuracy when installing the elastic preloading member, and moreover, the above structure can rationally utilize the space of the bottle body to reduce the space required for installing the device.

[0012] Furthermore, the solenoid valve includes a magnetic induction frame provided with locking protrusions on the outside, a valve body inserted into the magnetic induction frame, which has opposing connection ends and free ends, with a connection port provided at the connection end and a valve port provided at the free end. The connection end of the valve body is screwed to the bottle mouth, and a coil assembly fixed to the magnetic induction frame and surrounding the outer periphery of the valve body. When the valve body and the coil assembly are fixed to the magnetic induction frame, the coil assembly and the valve body can be connected to the bottle body, improving the stability of the overall structure of the solenoid valve. Furthermore, the connection stability between the solenoid valve and the bottle body is improved. Moreover, through the above installation, the structure of the essential oil valve can be made more compact and the volume can be reduced, realizing the miniaturization of the device.

[0013] Furthermore, the valve body includes a fixed iron core with one end inserted into the bottle mouth and screwed to the bottle mouth, and a connection port provided thereon, and the other end of the fixed iron core is connected to a housing having a chamber and a valve port, with the connection port communicating with the chamber and the valve port provided at the bottom and communicating with the chamber, and a movable iron core movably provided in the chamber and used to open or seal the valve port. By providing the above structure, the valve body can open or seal the valve port by the movable iron core, thereby controlling the flow rate of the essential oil in the bottle body and reducing the situation of waste of essential oil during the use process.

[0014] Furthermore, the length of the avoidance segment in the axial direction is greater than or equal to the thickness of the locking protrusion. With such a design, sufficient space can be ensured for the locking protrusion, making it easier for the locking protrusion to rotate into the avoidance segment. Furthermore, the installation of the solenoid valve becomes easier, improving the installation efficiency of the solenoid valve.

[0015] Furthermore, a reinforcing structure is provided between the fixing part and the bottle body. With such a design, the structural strength of the fixing part can be improved by the reinforcing structure, ensuring the stability of the device during long-term use and being beneficial for extending the service life of the device at the same time.

Brief Description of the Drawings

[0016] The drawings of the specification that form part of this application are for providing a further understanding of this application. The schematic embodiments and their descriptions of this application are for interpreting this application and do not unduly limit this application.

[0017]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

[0018] Here, the following reference numerals are included in the above-mentioned drawings. 10 Bottle body, 11 Bottle mouth, 12 Fixed part, 13 Avoidance segment, 14 Position limiting segment, 15 Accommodation groove, 20 Electromagnetic valve, 21 Connection port, 22 Valve port, 23 Locking protrusion, 24 Magnetic induction frame, 25 Coil assembly, 26 Fixed iron core, 27 Housing, 28 Movable iron core, 30 Elastic preloading member, 40 Reinforcing structure.

Mode for Carrying Out the Invention

[0019] The following describes the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application clearly and completely. It is obvious that the described embodiments are only some of the embodiments of the present application, not all of them. Hereinafter, the description of at least one exemplary embodiment is actually only illustrative and does not impose any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present application.

[0020] As shown in FIGS. 1 and 6, the present application provides a valve assembly including a bottle body 10 and a solenoid valve 20. Here, the bottle body 10 has a bottle mouth 11, and a fixing portion 12 is provided on the bottle body 10. The fixing portion 12 and the bottle mouth 11 are located on the same side of the bottle body 10 and are provided at an interval. A locking groove is provided on the side wall of the fixing portion 12. The solenoid valve 20 is provided at the bottle mouth 11 and has a connection port 21 and a valve port 22 that communicate with each other. The connection port 21 and the bottle mouth 11 are in communication. A locking protrusion 23 is further provided on the side portion of the solenoid valve 20. The locking protrusion 23 is locked and engaged with the locking groove so as to limit the axial displacement of the solenoid valve 20 with respect to the bottle body 10.

[0021] When the technical solution of the present application is applied, a fixing portion 12 is provided on the bottle body 10, and a locking groove is provided on the side wall of the fixing portion 12. A locking protrusion 23 is provided on the side portion of the solenoid valve 20. The solenoid valve 20 and the bottle body 10 can be fixedly connected by the connection and engagement of the locking groove and the locking protrusion 23. Designed in this way, after the solenoid valve 20 and the bottle body 10 are installed, the locking groove and the locking protrusion 23 effectively reduce the situation of receiving force at the bottle mouth 11 due to the acting force that restricts each other. As a result, the overall force bearing of the bottle body 10 is made more uniform, the stability after the connection between the solenoid valve 20 and the bottle body 10 can be ensured, and the phenomena such as looseness, rattling, and even falling off caused by multiple tightening and loosening of the two can be prevented. At the same time, the use of the device is also made easier.

[0022] As shown in FIGS. 2 to 4, the locking groove is located on one side close to the bottle mouth 11 of the fixing portion 12, and one end of the locking groove has an opening. The locking groove extends along the circumferential direction of the fixing portion 12. The locking protrusion 23 enters the locking groove from the opening and is locked and engaged with the locking groove. Designed in this way, the locking protrusion 23 is moved into the locking groove by a rotating method. The above operation is simple and convenient, can reduce the difficulty of installing the device, and can improve the installation efficiency of the device. Of course, in other embodiments of the present application, the locking protrusion 23 may directly move into the locking groove and be locked and engaged with the locking groove. The specific installation situation may also be selected according to the use environment of the device, which is beneficial to expanding the application range of the device.

[0023] Specifically, the locking groove includes an avoidance segment 13 and a position limiting segment 14 sequentially provided along the circumferential direction. An opening is provided at one end of the avoidance segment 13 away from the position limiting segment 14. The bottom of the position limiting segment 14 is lower than the bottom of the avoidance segment 13. By engaging the locking protrusion 23 with the position limiting segment 14, the displacement of the locking protrusion 23 in the axial direction can be limited, and the rotation of the locking protrusion 23 in the locking groove can be limited. Designed in this way, during the installation process of the device, after the solenoid valve 20 rotates to the avoidance segment 13, it can continue to rotate into the position limiting segment 14 and be restrictively engaged with the position limiting segment 14, thereby improving the stability after the connection between the locking protrusion 23 and the locking groove, which is beneficial to improving the connection stability between the solenoid valve 20 and the bottle body 10.

[0024] As shown in FIGS. 5 and 7, in the embodiment of the present application, the end portion that enters the locking groove of the locking protrusion 23 is arc-shaped, and both the avoidance segment 13 and the position limiting segment 14 are provided as rectangular structures. The above-mentioned structure is simple and easy to process. While meeting the connection and limitation requirements between the solenoid valve 20 and the bottle body 10, the manufacturing cost of the device can be reduced. Of course, the locking protrusion 23 may be provided as a square or trapezoidal structure, and the avoidance segment 13 and the position limiting segment 14 only need to be provided as a mechanism that restricts each other with the locking protrusion 23 and can meet the limitation requirements of the device.

[0025] Furthermore, a plurality of fixing portions 12 are provided. The plurality of fixing portions 12 are provided surrounding the outer periphery of the bottle mouth 11. Each fixing portion 12 is provided with one locking groove. The plurality of locking grooves are sequentially provided along the rotation direction of the locking protrusion 23. The solenoid valve 20 has a plurality of locking protrusions 23, and the locking protrusions 23 and the locking grooves are provided in a one-to-one correspondence. By providing the plurality of locking grooves and the plurality of locking protrusions 23, the connection between the solenoid valve 20 and the bottle body 10 can be made stronger, and at the same time, the overall structural strength after the connection of both can be improved.

[0026] In this embodiment, the number of the fixing portions 12 is two, and the two fixing portions 12 are symmetrically provided along both sides of the bottle mouth 11. The number of the locking protrusions 23 is two, and the two locking protrusions 23 are symmetrically provided along both sides of the solenoid valve 20. Such a design makes the overall layout of the device more reasonable. At the same time, the weight of the solenoid valve 20 can be evenly distributed on the fixing portions 12, making the force-bearing of the bottle body 10 more uniform, further reducing the situation of force reception at the bottle mouth 11, and furthermore, ensuring the stability after the connection between the solenoid valve 20 and the bottle body 10.

[0027] Specifically, the valve assembly further includes an elastic preloading member 30. The elastic preloading member 30 is provided between the solenoid valve 20 and the bottle body 10 and can provide an axial elastic force to the solenoid valve 20. With such a design, due to the elastic force of the elastic preloading member 30, the locking protrusion 23 and the locking groove in the solenoid valve 20 can be closely adhered and connected, preventing the phenomenon that the locking protrusion 23 falls off from the locking groove due to the shaking of the device, and further ensuring the stability after the connection between the locking protrusion 23 and the locking groove.

[0028] Here, in the embodiment of the present application, the elastic preloading member 30 is specifically a spring. The above structure is simple and easy to process. It can not only meet the pressing and limiting requirements of the locking protrusion 23, but also is easy to install, the device is easy to detach and attach, and the detachment and attachment efficiency of the device is improved. Of course, the elastic preloading member 30 may be provided as an elastic piece as long as it can meet the requirement of preloading restriction on the locking protrusion 23.

[0029] Furthermore, the bottle body 10 is provided with a receiving groove 15. The receiving groove 15 is provided surrounding the outer periphery of the bottle mouth 11. One end of the elastic preloading member 30 is located in the receiving groove 15, and the other end of the elastic preloading member 30 abuts against the solenoid valve 20. With such a design, the elastic preloading member 30 can be positioned, ensuring the accuracy when installing the elastic preloading member 30. Moreover, the above structure can rationally utilize the space of the bottle body 10 to reduce the space required for installing the device. Further, by providing the above structure, a certain number of spring turns can be increased, ensuring that the spring has sufficient elastic force, and further meeting the restriction requirements of the spring on the locking protrusion 23.

[0030] Specifically, the electromagnetic valve 20 includes a magnetic induction frame 24, a valve body, and a coil assembly 25. Here, a locking protrusion 23 is provided on the outer side of the guide magnetic frame 24. The valve body is inserted into the magnetic induction frame 24. The valve body has a connection end and a free end provided oppositely. The connection port 21 is provided at the connection end, the valve port 22 is provided at the free end. The connection end of the valve body is screwed to the bottle mouth 11. The coil assembly 25 is fixed to the magnetic induction frame 24 and the coil assembly 25 is provided surrounding the outer periphery of the valve body. When the valve body and the coil assembly 25 are fixed to the magnetic induction frame 24, the coil assembly 25 and the valve body can be connected to the bottle body 10, improving the stability of the overall structure of the electromagnetic valve 20. Furthermore, the connection stability between the electromagnetic valve 20 and the bottle body 10 is improved. Moreover, with the above installation, the structure of the essential oil valve can be made compact and the volume can be reduced, realizing the miniaturization of the device.

[0031] Furthermore, the valve body includes a fixed iron core 26, a housing 27, and a movable iron core 28. Here, one end of the fixed iron core 26 is inserted into the bottle mouth 11 and screwed to the bottle mouth 11. The connection port 21 is provided on the fixed iron core 26. The other end of the housing 27 and the fixed iron core 26 is connected to the housing. The housing 27 has a chamber and a valve port 22. The connection port 21 and the chamber are in communication. The valve port 22 is provided at the bottom of the housing 27 and is in communication with the chamber. The movable iron core 28 is movably provided in the chamber and the movable iron core 28 is used to open or seal the valve port 22. By providing the above structure, the valve body can open or seal the valve port 22 by the movable iron core 28, thereby controlling the flow rate of the essential oil in the bottle body 10 and reducing the situation where the essential oil is wasted during the use process.

[0032] Here, in the installation process of this embodiment, first, the fixed iron core 26 and the bottle mouth 11 are tightened by screws, whereby the valve body and the bottle body 10 can be fixedly connected. Then, the elastic preloading member 30 is placed into the accommodation groove 15. Finally, when the magnetic induction frame 24 of the assembled solenoid valve is rotated into the position limiting segment 14 inside the locking groove, the overall assembly of the device can be completed.

[0033] Specifically, the length of the avoidance segment 13 in the axial direction is L1, and L1 is not less than the thickness of the locking protrusion 23. When L1 is smaller than the thickness of the locking protrusion 23, there is not enough space for the locking protrusion 23 to move into the avoidance segment 13, and the installation requirements of the device cannot be met. Therefore, by setting L1 to be not less than the thickness of the locking protrusion 23, sufficient space can be ensured for the locking protrusion 23, making it easier for the locking protrusion 23 to rotate into the avoidance segment 13. Furthermore, the installation of the solenoid valve 20 becomes easier, improving the installation efficiency of the solenoid valve 20.

[0034] Here, the length of the position limiting segment 14 in the axial direction is L2, and L1≥0.1 mm. When L2 is smaller than 0.1 mm, after the locking protrusion 23 and the position limiting segment 14 are connected, the position limiting segment 14 cannot ensure that the entire locking protrusion 23 is located within the position limiting segment 14. When the device shakes, the locking protrusion 23 is likely to separate from the position limiting segment 14, resulting in looseness between the solenoid valve 20 and the bottle body 10, and the connection stability between the solenoid valve 20 and the bottle body 10 cannot be ensured. Therefore, when L1≥0.1 mm, it can effectively prevent the locking protrusion 23 from falling off from within the position limiting segment 14 and ensure the stability of the device during operation.

[0035] Furthermore, the width of the position-limiting segment 14 is L3, the width of the locking protrusion 23 is L4, and L3 ≥ L4. If L3 is smaller than L4, there will not be enough space for the locking protrusion 23 to move from the avoidance segment 13 into the position-limiting segment 14, and the requirements for installing the device cannot be met. Therefore, when L3 ≥ L4, not only can sufficient space be ensured for the locking protrusion 23 and it becomes easier for the locking protrusion 23 to move into the avoidance segment 13, but at the same time, the locking protrusion 23 can also automatically fit into the position-limiting segment 14 under the action of the elastic preloading member 30, thereby realizing the self-locking function of the device.

[0036] Furthermore, a reinforcing structure 40 is provided between the fixing part 12 and the bottle body 10. Designed in this way, the structural strength of the fixing part 12 can be improved by the reinforcing structure 40, ensuring the stability of the device during long-term use and being beneficial for extending the service life of the device at the same time.

[0037] When the technical solution of this application is applied, the bottle body 10 is provided with a fixing part 12, and a locking groove is provided on the side wall of the fixing part 12. A locking protrusion 23 is provided on the side part of the solenoid valve 20. The solenoid valve 20 and the bottle body 10 can be fixedly connected by the connection and engagement of the locking groove and the locking protrusion 23. Designed in this way, after the solenoid valve 20 and the bottle body 10 are installed, the acting forces by which the locking groove and the locking protrusion 23 limit each other can effectively reduce the situation of receiving force at the bottle mouth 11. Thereby, the overall force reception of the bottle body 10 becomes more uniform, ensuring the stability after the connection between the solenoid valve 20 and the bottle body 10, preventing phenomena such as rattling and even falling off caused by multiple loosenings and tightenings of both, and at the same time, making the use of the device easier. In addition, a reinforcing structure 40 is provided between the fixing part 12 and the bottle body 10, which can improve the structural strength of the fixing part 12 and ensure the stability of the device during long-term use.

[0038] It should be noted that the terms used herein are merely for describing specific embodiments and are not intended to limit the exemplary embodiments of the present application. As used herein, unless otherwise clearly specified in the context, the singular forms are intended to include the plural forms. Furthermore, when the terms "include" and / or "comprise" are used in this specification, it should also be understood that they indicate the presence of features, steps, operations, devices, assemblies, and / or combinations thereof.

[0039] Unless otherwise specifically described, the relative arrangements, mathematical formulas, and numerical values of the members and steps described in these examples do not limit the scope of the present application. At the same time, for the sake of convenience in description, it should be understood that the dimensions of each part shown in the drawings are not drawn in accordance with the actual proportional relationship. Regarding the technologies, methods, and equipment known to those skilled in the art, although not discussed in detail, where appropriate, the described technologies, methods, and equipment should be regarded as part of the permitted specification. In all the examples shown and discussed herein, any specific values are merely exemplary and should not be construed as limiting. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference signs and characters indicate like elements in the following drawings. Therefore, once an element is defined in one drawing, further description thereof is not required in subsequent drawings.

[0040] In the description of this application, the directions or positional relationships indicated by directional terms such as "front", "rear", "upper", "lower", "left", "right", "lateral direction", "longitudinal direction", "vertical", "horizontal", and "top", "bottom", etc. are usually the directions or positional relationships based on the illustration, and are merely for the convenience of the description of this application and to simplify the description. Unless there is a contrary description, these directional terms do not indicate and imply that the specified device or element must have a specific direction or be configured and operated in a specific direction. Therefore, it should not be understood as limiting the protection scope of this application. It should be understood that the directional terms "inside" and "outside" mean inside and outside with respect to the contour of each member itself.

[0041] For the convenience of description, here, spatially relative terms such as "above ~", "above ~", "on the upper surface of ~", "of the upper surface", etc. may be used to describe the spatial positional relationship between one illustrated device or feature and another device or feature. The spatially relative terms are intended to include different orientations of the device during use or operation in addition to the orientation described in the drawing. For example, if the device in the drawing is reversed, a device described as "above another device or structure" or "on another device or structure" will thereafter be positioned as "below another device or structure" or "under another device or structure". Therefore, the exemplary term "above ~" may include both the directions of "above ~" and "below ~". This device may be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here may be interpreted accordingly.

[0042] Furthermore, it should be noted that the use of words such as "first", "second", etc. to limit components is merely for easily distinguishing the corresponding components. Unless otherwise described, the above words do not have a special meaning and should not be understood as limiting the protection scope of this application.

[0043] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various modifications and changes are possible to the present application. Any modifications, equivalent substitutions, improvements, etc. made within the scope of the spirit and principle of the present application should all be included within the protection scope of the present application.

Claims

1. A bottle body (10) having a bottle mouth (11), provided with a fixing part (12), the fixing part (12) and the bottle mouth (11) are located on the same side of the bottle body (10), and the fixing part (12) and the bottle mouth (11) are provided at an interval, and a locking groove is provided on the side wall of the fixing part (12). The bottle body (10), and A solenoid valve (20) provided at the bottle mouth (11), having a connection port (21) and a valve port (22) communicated with each other, the connection port (21) and the bottle mouth (11) are communicated, and a locking projection (23) is further provided on the side part of the solenoid valve (20). The locking projection (23) is locked and engaged with the locking groove so as to limit the displacement of the solenoid valve (20) in the axial direction with respect to the bottle body (10). The solenoid valve (20) included in the valve assembly.

2. The locking groove is located on one side of the fixing part (12) close to the bottle mouth (11), and one end of the locking groove has an opening. The locking groove extends along the circumferential direction of the fixing part (12). The locking projection (23) enters the locking groove from the opening and is locked and engaged with the locking groove. The valve assembly according to claim 1.

3. The locking groove includes an avoidance segment (13) and a position limiting segment (14) provided sequentially along the circumferential direction. The opening is provided at one end of the avoidance segment (13) away from the position limiting segment (14). The bottom of the position limiting segment (14) is lower than the bottom of the avoidance segment (13). By the engagement of the locking projection (23) and the position limiting segment (14), the displacement of the locking projection (23) in the axial direction can be limited, and the rotation of the locking projection (23) in the locking groove can be limited. The valve assembly according to claim 2.

4. A plurality of the fixing parts (12) are provided. The plurality of fixing parts (12) are provided surrounding the outer periphery of the bottle mouth (11). Each of the fixing parts (12) is provided with one locking groove. The plurality of locking grooves are sequentially provided along the rotation direction of the locking projection (23). The solenoid valve (20) has a plurality of the locking projections (23). The locking projections (23) and the locking grooves are provided in one-to-one correspondence. The valve assembly according to claim 2.

5. The valve assembly according to claim 1, further comprising an elastic preloading member (30) provided between the electromagnetic valve (20) and the bottle body (10) and capable of providing an axial elastic force to the electromagnetic valve (20).

6. The bottle body (10) is provided with a receiving groove (15), the receiving groove (15) is provided surrounding the outer periphery of the bottle mouth (11), one end of the elastic preloading member (30) is located within the receiving groove (15), and the other end of the elastic preloading member (30) is in contact with the electromagnetic valve (20). The valve assembly according to claim 5.

7. The electromagnetic valve (20) includes a magnetic induction frame (24) provided with the locking protrusion (23) on the outside, a valve body inserted into the magnetic induction frame (24), having opposed connection ends and free ends, the connection port (21) is provided at the connection end, the valve port (22) is provided at the free end, and the connection end of the valve body is screwed to the bottle mouth (11), and a coil assembly (25) fixed to the magnetic induction frame (24) and provided surrounding the outer periphery of the valve body. The valve assembly according to claim 1.

8. The valve body includes a fixed iron core (26) with one end inserted into the bottle mouth (11) and screwed to the bottle mouth (11), and the connection port (21) is provided thereon, a housing (27) connected to the other end of the fixed iron core (26), having a chamber and the valve port (22), the connection port (21) and the chamber are in communication, and the valve port (22) is provided at the bottom and in communication with the chamber, and a movable iron core (28) movably provided within the chamber and used to open or seal the valve port (22). The valve assembly according to claim 7.

9. The length of the avoidance segment (13) in the axial direction is not less than the thickness of the locking protrusion (23). The valve assembly according to claim 3.

10. A reinforcing structure (40) is provided between the fixing portion (12) and the bottle body (10). The valve assembly according to claim 1.

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