Inner plug of vacuum cup

Abstract

The utility model discloses a vacuum cup inner plug which comprises a plug body provided with a water outlet channel and further comprises a valve assembly movably connected to the plug body and provided with an opening position enabling an inlet of the water outlet channel to be opened. The turning cover is hinged to the plug body, and the turning cover can abut against the valve assembly when rotating so as to drive the valve assembly to move towards the opening position; and the clamping mechanism is used for limiting the movement of the flip cover so as to fix the position of the flip cover. Wherein the turning cover can be turned to a first position around the hinged position of the turning cover and the plug body, and when the turning cover is located at the first position, the turning cover abuts against the valve assembly so that the valve assembly can be located at the open position; when the flip cover is located at the first position, the clamping mechanism clamps the flip cover. According to the scheme, the number of structures is small, so that the occupied space of the plug body is small, the size of the corresponding water outlet channel can be large, and the water outlet amount is guaranteed. Meanwhile, the flip operation is simple, and the user experience is good; the valve assembly can guarantee the sealing performance and the heat preservation performance, so that the inner plug of the vacuum cup further has the good heat preservation performance.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of vacuum cups, and in particular to an inner plug of a vacuum cup. BACKGROUND

[0002] The vacuum cup is a common water container in daily life and has a heat preservation function. The cup body part of the vacuum cup can achieve heat preservation through a conventional double-layer vacuum stainless steel structure, and how to heat preserve the cup opening part is an important technical problem in the industry.

[0003] Based on the prior art, the conventional scheme is to install a detachable inner plug on the cup opening, a part of the inner plug is inserted into the cup body, and the sealing plug is used to enhance the sealing between the inner plug and the inner wall of the cup body, so that the vacuum cup as a whole has good sealing and heat preservation effect when the inner plug is installed.

[0004] At present, the inner plug structure can be roughly divided into two types. One type of inner plug includes a plug body and a flip cover, the flip cover is hinged to the plug body, and the flip cover can be opened when drinking. However, the heat insulation performance of the flip cover is general, which affects the heat preservation performance of the vacuum cup. Another type of inner plug has a press-type umbrella valve assembly, which is similar to the sealing structure used in a vacuum kettle, and the valve plate seals the water outlet channel. This structure has better heat preservation effect than the flip cover type inner plug, but the structure is more complex than the inner plug with a flip cover, especially to keep the valve plate in an open state, a press structure similar to a ballpoint pen is usually used to achieve one-key press opening and closing. These structures all involve a large number of parts. The inner plug itself is small, and after setting a large number of parts, the volume of the water outlet channel will be inevitably occupied, thereby affecting the water outlet amount and causing poor user experience.

[0005] Therefore, how to design an inner plug with simple structure, fewer involved parts and good heat preservation effect is an important task in the industry. CONTENT OF THE UTILITY MODEL

[0006] The application provides a vacuum kettle cover to improve or solve the technical problem that the easy cleanability and easy openability of the existing vacuum kettle cover cannot coexist.

[0007] The technical scheme adopted by the application is as follows:

[0008] The application discloses an inner plug of a vacuum cup, which comprises a plug body provided with a water outlet channel, a valve assembly movably connected to the plug body, the valve assembly having an open position in which the water outlet channel is open, a cover hinged to the plug body, the cover being capable of abutting against the valve assembly when being rotated to drive the valve assembly to move to the open position, and a clamping mechanism for limiting the movement of the cover to fix the position of the cover, wherein the cover is capable of being turned to a first position relative to the hinged position of the plug body, the cover abutting against the valve assembly when being located at the first position to make the valve assembly be in the open position, and the clamping mechanism clamping the cover when the cover is located at the first position.

[0009] According to the inner plug of the vacuum cup, the cover directly contacts the umbrella valve assembly, the umbrella valve assembly is directly driven to move by the cover, the number of structural parts is small, only a space is reserved for the umbrella valve assembly in the plug body, the water outlet channel can be large enough, the inner plug has a high water outlet rate, and the user experience is ensured. Meanwhile, the cover is simple in structure and easy to operate, the umbrella valve assembly is connected with the cover, and only the cover needs to be pressed to realize the operation of opening the cover to pour water and closing the cover to seal, so that the user can use the cover conveniently. In addition, the umbrella valve assembly is adopted, the inner plug of the vacuum cup has good sealing and heat preservation effects, and the heat preservation performance of the vacuum cup is ensured. In addition, the clamping mechanism is arranged, the cover can be kept in the open state without being continuously pressed, and the operation is simplified, and the user can use the cover conveniently.

[0010] The application further has the following additional technical features.

[0011] In an optional solution, the cover comprises a first end, the first end abutting against the valve assembly to drive the valve assembly to move, wherein the clamping mechanism is attached to the first end when the cover is located at the first position, and the clamping mechanism is configured to apply a friction force to the first end in the movement direction of the valve assembly to limit the movement of the cover.

[0012] The clamping of the cover is realized based on the frictional resistance. On the one hand, the user only needs to overcome the frictional resistance to freely operate the cover, specifically, only needs to press the cover to overcome the frictional resistance, and the cover is convenient to use. On the other hand, the solution of applying the frictional resistance to the first end is various and easy to realize for the manufacturer, for example, a rough surface capable of contacting the first end is arranged at the first position, so that the frictional resistance is applied to the first end, and therefore, the cover is convenient to design and manufacture. In addition, the adjustment of the size of the frictional resistance can be designed by conventional means, for example, increasing or reducing the friction coefficient, adjusting the pressure between the first end and the clamping mechanism by size design, and the like, the solution is various, the principle involved is simple, and the solution has a certain value for popularization and application.

[0013] In an alternative, the clamping mechanism comprises a protrusion arranged on the inner wall of the plug body, and the protrusion abuts against the first end when the cover is in the first position to limit the movement of the cover.

[0014] The protrusion is arranged to abut against the first end to generate a friction force between the protrusion and the first end. The protrusion has a simple structure and can achieve the effect of applying a friction force to the first end, facilitating design and manufacturing.

[0015] In an alternative, the first end comprises a plug-in protrusion, and the valve assembly comprises an abutting protrusion; the protrusion and the abutting protrusion abut against both sides of the plug-in protrusion, respectively, when the cover is in the first position.

[0016] After the plug-in protrusion and the abutting protrusion are arranged, the two surfaces of the plug-in protrusion can abut against the protrusion and the abutting protrusion, respectively, so that the friction force applied to the plug-in protrusion is sufficient to enable the cover to be clamped more stably when the cover is in the first position. In addition, the double-sided friction can prolong the service life and improve the user experience.

[0017] In an alternative, the clamping mechanism comprises a clamping plate connected to the valve assembly and movable with the valve assembly; the clamping plate is provided with a clamping groove, and the first end is connected with a clamping rib matched with the clamping groove; when the cover is rotated to the first position, the clamping rib falls into the clamping groove, and the wall of the clamping groove abuts against the clamping rib to limit the movement of the cover.

[0018] In this structure, the clamping plate is arranged on the valve assembly, so that the clamping plate and the clamping groove can be integrally formed with the components of the valve assembly, facilitating production.

[0019] In an alternative, the cover has a second end corresponding to the position above the outlet of the water outlet channel; the cover has a second position, and when the cover is in the second position, the valve assembly is in a closed state of closing the inlet of the water outlet channel, and the second end covers the outlet of the water outlet channel in the orthographic projection.

[0020] In this alternative, the second end can cover the outlet of the water outlet channel, so as to block dust and sundries, and enable the water outlet channel to be kept cleaner.

[0021] In an alternative, the plug body is provided with a channel wall surrounding the water outlet channel; when the cover is in the second position, the second end contacts the upper end surface of the channel wall to limit the cover from being turned to one side of the water outlet channel.

[0022] In this scheme, the position of the channel wall can make the water outlet channel present a variety of different forms. For example, the channel wall can enclose a polygonal cross-section channel, forming a form similar to the existing straight drinking cup water outlet channel, facilitating the user to directly drink; or the channel wall can enclose a fan-shaped cross-section channel, realizing multi-angle pouring. At the same time, the channel wall plays a role in limiting the movement of the flip cover, avoiding damage to the flip cover caused by the user pressing the flip cover in the opposite direction. At the same time, it also provides positioning for the flip cover, so that the flip cover can be kept in a state of covering the outlet of the water outlet channel.

[0023] In an optional scheme, the plug body is provided with a mounting hole; the valve assembly comprises: a valve rod movably connected to the mounting hole; the upper end of the valve rod is in contact with the lower surface of the flip cover; a valve cap is fixedly connected to the lower end of the valve rod; the shape of the valve cap is matched with the inlet of the water outlet channel to close the inlet of the water outlet channel; a resilient member is connected between the valve rod and the plug body; the resilient member drives the valve rod to maintain in a position where the valve cap closes the inlet of the water outlet channel.

[0024] In this scheme, the flip cover directly abuts against the valve rod, and controls the valve cap through the transmission of the valve rod, which is simple in structure, involves a small number of components, and is easy to design and produce.

[0025] In an optional scheme, the valve cap and the valve rod are detachably connected through a threaded structure.

[0026] In this scheme, the valve cap is detachable, which is convenient for disassembly and cleaning, and can also be quickly installed after cleaning, which is very simple to use and convenient for users.

[0027] In an optional scheme, a filter is further included, which is connected to the plug body and covers the inlet of the water outlet channel.

[0028] By providing a filter,

[0029] In summary, the number of parts required by this scheme is small, so the installation space required is small, which is beneficial to design a water outlet channel with a large water outlet rate, and also beneficial to production and assembly. And for users, the use method of the vacuum cup installed with the vacuum cup inner plug provided by this scheme is also very convenient. Only the first end of the flip cover is pressed to make the flip cover rise, and drinking water can be performed; after drinking water, only the other end of the flip cover away from the first end is pressed to make the flip cover return to the initial position, at which time the valve assembly closes the water outlet channel to make the vacuum cup have good heat preservation effect and sealing effect. BRIEF DESCRIPTION OF DRAWINGS

[0030] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in

[0031] Figure 1 FIG. 1 is a half sectional view of an embodiment of an inner lid for a vacuum cup according to the present application, wherein the valve assembly is in a closed position;

[0032] Figure 2 FIG. 2 is a half sectional view of the embodiment of FIG. 1, wherein the valve assembly is in an open position;

[0033] Figure 3 FIG. 3 is an exploded view of the embodiment of FIG. 1;

[0034] Figure 4 FIG. 4 is a view of the structure of the valve body of the embodiment of FIG. 1;

[0035] Figure 5 FIG. 5 is a view of the structure of the other side of the valve body of the embodiment of FIG. 1; Figure 4 FIG. 6 is a view of the structure of the valve stem of the embodiment of FIG. 1;

[0036] Figure 6 FIG. 7 is a view of the structure of the valve cap of the embodiment of FIG. 1;

[0037] Figure 7 FIG. 8 is a half sectional view of another embodiment of an inner lid for a vacuum cup according to the present application, wherein the valve assembly is in a closed position;

[0038] Figure 8 FIG. 9 is a half sectional view of the embodiment of FIG. 8, wherein the valve assembly is in an open position;

[0039] Figure 9 FIG. 10 is a view of the structure of the flap of the embodiment of FIG. 8;

[0040] Figure 10 FIG. 11 is a view of the structure of the valve stem of the embodiment of FIG. 8;

[0041] Figure 11 FIG. 12 is a list of components and reference numerals:

[0042]

[0043] ​1, plug body; 10, water outlet passage; 11, inlet; 12, outlet; 13, drinking water nozzle; 14, passage wall; 140, top surface; 15, hinged hole; 16, mounting hole; 2, flip cover; 20, plug convex part; 201, first end; 202, second end; 21, hinged shaft; 31, valve stem; 310, abutting convex part; 311, abutting plate; 312, screw thread; 32, valve cap; 321, threaded hole; 33, first sealing element; 34, second sealing element; 35, resilient element; 41, clamping rib; 51, protrusion; 52, clamping plate; 53, clamping groove; 6, filter screen; 7, third sealing element. DETAILED DESCRIPTION

[0044] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail with reference to the accompanying drawings.

[0045] In the following description, a number of specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced without the specific details, other than those described herein, and therefore, the scope of the present application is not limited to the specific embodiments disclosed herein.

[0046] In addition, in the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "transverse", "longitudinal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0047] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected, or it can be communicated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0048] In the present application, unless specifically defined and limited otherwise, a first feature "on" or "under" a second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means that the specific feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In the description of the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0049] The inner plug is a conventional thermos cup component, which is installed by inserting a part of the inner plug into the cup mouth of the thermos cup, and the sealing gasket of the inner plug is used to seal the cup mouth. Generally, a drinking opening and a component for closing the drinking opening are arranged on the inner plug to facilitate the user to drink water without removing the inner plug. The good sealing of the inner plug can inhibit the heat convection at the cup mouth, so that the thermos cup has good heat preservation effect.

[0050] However, the existing inner plug generally has the problem of complex structure, and the inner plug with simple structure often has general heat preservation effect.

[0051] Therefore, the present application provides a thermos cup inner plug scheme, which takes into account the effects of simple structure and good heat preservation effect, and to some extent helps to alleviate the technical contradictions existing in the prior art. As an embodiment of the present application, referring to Figures 1-7 The thermos cup inner plug includes a plug body 1, a flip cover 2 and a valve assembly. The plug body 1 is internally provided with a water outlet channel 10, the water outlet channel 10 has an inlet 11 and an outlet 12, when the thermos cup inner plug is installed in the thermos cup, the inlet 11 is directly communicated with the internal water cavity of the thermos cup, and the outlet 12 serves as a water outlet to realize the functions of pouring water or directly drinking. The flip cover 2 is hinged to the plug body 1, and the flip cover 2 can rotate around the hinge point of the plug body 1. Specifically, referring to Figure 3 and Figure 4A hinge hole 15 is provided on the surface of the plug body 1 corresponding to the area of ​​the water outlet channel 10. A hinge shaft 21 is provided on the surface of the flip cover 2 corresponding to the hinge hole 15. The hinge shaft 21 is rotatably connected to the hinge hole 15, allowing the flip cover 2 to rotate around the axis of the hinge shaft 21. A valve assembly is installed inside the plug body 1 and can move relative to the plug body 1. The valve assembly can move to an open position where the inlet 11 is open, allowing liquid to flow into the water outlet channel 10 for pouring; the valve assembly can also move to a closed position where the inlet 11 is closed by the valve assembly, isolating the internal space of the thermos cup from the outside world, achieving sealing and heat preservation. The valve assembly is linked to the flip cover 2. For example, it can be configured such that when the flip cover 2 rotates around the hinge point, the flip cover 2 directly presses down against the valve assembly, thereby driving the valve assembly to move. In Embodiment 1, referring to... Figure 1 and Figure 2 The lower end face of the flip cover 2 contacts the valve assembly, so that when the flip cover 2 rotates clockwise, the flip cover can press down on the valve assembly, causing the valve assembly to move and eventually move to the open position. Similarly, when closing the cover, the flip cover 2 is rotated counterclockwise to release the pressure on the valve assembly, and the valve assembly can then return to the closed position of the closed inlet 11.

[0052] The inner stopper of the thermos also includes a retaining mechanism, which restricts the movement of the flip cover 2, allowing the flip cover 2 to remain in a downward-pressing position against the valve assembly, thereby keeping the valve assembly in the open position. Figure 2 As shown, the flip cover 2 is currently in the position where the left side is tilted upwards and the right side is tilted downwards; this position is defined as the first position of the flip cover 2. When the flip cover 2 is in the first position, the first end 201 on the right side of the flip cover 2 is held in place by the holding mechanism, thus allowing the flip cover 2 to remain in the first position even when not pressed. At this time, the valve assembly is in the open position, and liquid can flow into the inlet 11 along the direction of the arrow shown in the figure and eventually flow out from the outlet 12. When it is necessary to close the cover, simply disengage the first end 201 from the holding mechanism, at which point the flip cover 2 is no longer held and can return to the first position. Figure 1 In the second position shown, the flip cover 2 no longer presses down on the valve assembly, and the valve assembly can return to the closed position.

[0053] In addition, the valve assembly includes a stop plate 311, which is located below the first end 201. When the first end 201 is flipped downward, it actuates the stop plate 311 downward to drive the valve assembly.

[0054] Example 1 allows for easy opening of the lid with a simple operation, and the inner stopper of the thermos remains open after the operation. It can also be easily closed with a simple operation. Furthermore, the design has few components, and the valve assembly can be controlled directly through the flip-top 2, making the principle simple and easy to implement.

[0055] The specific structure of the valve assembly can refer to existing technologies. For example, refer to... Figures 3-7In the first embodiment, the valve assembly comprises a valve stem 31, a valve cap 32 and a resilient member 35. The plug body 1 is provided with a mounting hole 16 which is shaped to match the valve stem 31. The valve stem 31 is movably connected in the mounting hole 16 so that the valve stem 31 can move in the axial direction of the valve stem 31 in the mounting hole 16. The valve cap 32 is mounted on the lower end of the valve stem 31 and can move with the valve stem 31 to open or close the inlet 11. Specifically, the valve cap 32 is connected with a first sealing member 33. When the valve cap 32 abuts against the wall of the inlet 11, the first sealing member 33 is sealed by extrusion. When the valve cap 32 is away from the inlet 11, the first sealing member 33 is separated from the wall of the inlet 11, thereby achieving uncapping. The resilient member 35 is connected between the valve stem 31 and the plug body 1. The lower surface of the corresponding first end 201 of the flip cover 2 is in contact with the upper surface of the valve stem 31. During the process of the flip cover 2 moving to the first position, the first end 201 presses the valve stem 31 downward, so that the valve cap 32 opens the inlet 11. When the flip cover 2 moves to the second position, the first end 201 gradually releases the pressure on the valve stem 31, so that the valve stem 31 can move upward under the action of the resilient member 35, and the valve cap 32 closes the inlet 11.

[0056] With reference to Figure 3 , Figure 6 and Figure 7 continuously, the valve cap 32 and the valve stem 31 are detachably fixedly connected. Specifically, the valve cap 32 is provided with a threaded hole 321, and the bottom of the valve stem 31 is provided with a screw thread 312 which is matched with the threaded hole 321. The detachable fixed connection of the valve cap 32 and the valve stem 31 is achieved by the cooperation of the screw thread 312 and the threaded hole 321.

[0057] In addition, other detachable connection structures can also be applied to the valve stem 31 and the valve cap 32, such as using a clamping block and a clamping groove for clamping.

[0058] The detachable connection of the valve cap 32 and the valve stem 31 is beneficial for assembly. The top of the valve stem 31 is often provided with a large-area protruding structure to contact with the flip cover 2, and the bottom is connected with a large-area valve cap 32. Therefore, how to assemble the valve stem 31 in the mounting hole 16 is a problem. After the above scheme is adopted, the valve cap 32 is detachable. Therefore, the valve stem 31 can be inserted into the mounting hole 16 from top to bottom, and then the valve cap 32 is connected to the end of the valve stem 31 which is inserted out. For users, the detachable valve cap 32 is convenient for users to disassemble and clean.

[0059] With reference to Figure 1In the first embodiment, considering that there is a gap between the valve assembly and the wall of the mounting hole 16, a second sealing member 34 is sleeved on the outer wall of the valve assembly, and the sealing and waterproof between the valve assembly and the mounting hole 16 is realized through the second sealing member 34. Specifically, the bonnet 32 has a portion extending into the mounting hole 16, and the second sealing member 34 is sleeved on the outer wall of the portion of the bonnet 32 extending into the mounting hole 16, and the second sealing member 34 is attached to the wall of the mounting hole 16 to realize sealing and waterproof.

[0060] In addition, the valve assembly can also be other forms of operable valve structures that can be used in drinking water appliances, which are not limited here.

[0061] Optionally, the clamping mechanism realizes clamping of the valve assembly in the form of friction. Specifically, when the flip cover 2 is in the first position, the surface of the clamping mechanism is in abutment with the surface of the first end 201, so that the friction between the clamping mechanism and the first end 201 is generated, thereby limiting the movement of the first end 201, and further enabling the first end 201 to be maintained in the first position.

[0062] Specifically, referring to Figure 1 , Figure 2 and Figure 4 , the clamping mechanism includes a protrusion 51 arranged on the inner wall of the plug body 1, the position of the protrusion 51 corresponds to the position of the first end 201 when the flip cover 2 is in the first position, and the protrusion 51 can abut against the first end 201 in the first position, so that the first end 201 is fixed by the friction force exerted by the protrusion 51, and the flip cover 2 is maintained in the first position.

[0063] The specific form of the protrusion 51 in the first embodiment is not limited, which can be Figure 2 a simple protrusion shape as shown, or a shape similar to a downwardly bent hook to improve the gripping force, or a piece of outwardly protruding silicone structure, in short, it can be any structure that can exert pressure on the first end 201 by abutment to generate friction.

[0064] Since the method of overcoming friction is particularly simple, it only needs to increase the pressure, for example, in the first embodiment described above, it only needs to press the raised second end 202, and the friction force exerted by the protrusion 51 on the flip cover 2 can be overcome. It is particularly convenient for users to operate.

[0065] On the basis of the above structure, further, the first end 201 is provided with an outwardly extending plug-in protrusion 20, and the valve assembly is further provided with an abutting protrusion 310 protruding towards the side where the protrusion 51 is located, and when the valve assembly moves to the open position, the abutting protrusion 310 is located at a position opposite to the protrusion 51. The abutting gap for clamping the plug-in protrusion 20 is formed between the abutting protrusion 310 and the protrusion 51, and the plug-in protrusion 20 can be stably clamped in the abutting gap.

[0066] In the above scheme, the left side of the plug convex portion 20 is in abutment with the abutment convex portion 310, and the right side of the plug convex portion 20 is in abutment with the convex block 51, so that the friction applied to the plug convex portion 20 is large enough to enable the cover 2 to be more stably maintained in the first position. Moreover, the scheme of using double-sided friction can reduce the risk of friction failure, thereby ensuring that the vacuum cup inner plug has a required service life.

[0067] Referring to Figure 3 and Figure 4 , the plug body 1 is provided with a plurality of channel walls 14, which surround a water outlet channel 10 for water outlet. The water outlet channel 10 is located away from the convex block 51, so as to avoid the interference of the clamping mechanism with the size of the water outlet channel 10, so that the water outlet channel 10 can be designed as large as possible to obtain sufficient water outlet.

[0068] In addition, since the shape of the water outlet channel 10 is determined by the arrangement mode of the channel walls 14, the water outlet channel 10 can also be designed according to the water outlet channel of a direct drinking cup, and a drinking nozzle 13 is designed at the position of the plug body 1 corresponding to the outlet 12, so that the user can directly drink water through the drinking nozzle 13, or guide the water flow direction through the drinking nozzle 13 to avoid the risk of water flow spilling when pouring water.

[0069] Referring to Figure 1 and Figure 2 , the second end 202 of the cover 2 is located above the outlet 12, and when the cover 2 is in the second position, i.e., the position of the cover 2 when the valve assembly is in the closed state, the projection of the second end 202 on the water outlet channel covers the outlet 12, so that the second end 202 can also function to prevent foreign matter from entering the water outlet channel 10.

[0070] In addition, when the cover 2 is in the second position, the second end 202 contacts the top surface 140 of the channel wall 14, which functions to limit the further downward movement of the second end 202, thereby providing a limit for the cover 2, so that the cover 2 can be maintained in the second position.

[0071] As a second embodiment of the vacuum cup inner plug, referring to Figures 8-11The overall structure of the second embodiment is similar to that of the first embodiment, but the difference is that the clamping mechanism of the second embodiment comprises a clamping plate 52 connected to the valve assembly. In the second embodiment, the clamping plate 52 is connected to the top of the valve stem 31, but in other embodiments it can be connected to other parts. The upper surface of the clamping plate 52 is provided with a clamping groove 53, and the lower surface of the cover 2 is provided with a clamping rib 41 that is shaped to fit the clamping groove 53 so that the clamping rib 41 can be stably accommodated in the clamping groove 53. The clamping rib 41 and the clamping plate 52 are configured such that when the cover 2 is rotated to the first position, the clamping rib 41 falls into the clamping groove 53, and the wall of the clamping groove 53 abuts against the clamping rib 41, thereby achieving the purpose of limiting the movement of the cover 2. When the cover 2 is in other positions, the clamping rib 41 does not fall into the clamping groove 53, so the cover 2 will not be clamped.

[0072] Specifically, since the cover 2 moves by rotating about the hinge point, as the cover 2 rotates and the valve assembly descends, the clamping rib 41 will gradually fall from outside the clamping groove 53 into the clamping groove 53, and after falling into the clamping groove 53, the clamping rib 41 is abutted by the wall of the clamping groove 53, so that the wall of the clamping groove 53 exerts a frictional force on the clamping rib 41 to keep the cover 2 in the first position.

[0073] The second embodiment has the advantage of being easy to process because the clamping mechanism is provided with the valve assembly.

[0074] Reference Figures 1-3 The lower part of the outer wall of the inner plug of the vacuum cup is provided with a third sealing element 7, which presses against the inner wall of the vacuum cup body when the inner plug is installed in the vacuum cup body to achieve sealing. In addition, the plug body 1 is also connected with a filter screen 6, which is located below the valve assembly and covers the inlet 11, so that the liquid first passes through the filter screen 6 before flowing into the inlet 11.

[0075] In addition, the parts not mentioned in this application can be realized by using or referring to existing technology.

[0076] Each embodiment in the specification is described in a progressive manner, and the same or similar parts between each embodiment can be referred to each other, and each embodiment focuses on the differences from other embodiments.

[0077] The above only describes the embodiments of the present application and is not intended to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the scope of the claims of the present application.

Claims

1. A vacuum cup inner plug, comprising a plug body, the plug body is provided with a water outlet channel, characterized in that, Also comprising: a valve assembly movably connected to the plug body, the valve assembly having an open position in which the water outlet channel inlet is open; a cover hingedly connected to the plug body, the cover being able to abut against the valve assembly when rotated to drive the valve assembly to move to the open position; a clamping mechanism for limiting the movement of the cover to fix the position of the cover; wherein the cover is able to be flipped to a first position about the hinge with the plug body, the cover abutting against the valve assembly when in the first position to drive the valve assembly to the open position, and the clamping mechanism clamping the cover when the cover is in the first position.

2. The vacuum cup inner plug according to claim 1, wherein, the cover comprising a first end that abuts against the valve assembly to drive the valve assembly to move; wherein the clamping mechanism is in contact with the first end when the cover is in the first position, and the clamping mechanism is configured to apply a friction force to the first end in the direction of movement of the valve assembly to limit the movement of the cover.

3. The vacuum cup inner plug according to claim 2, wherein, the clamping mechanism comprising a protrusion provided on the inner wall of the plug body, the protrusion abutting against the first end when the cover is in the first position to limit the movement of the cover.

4. The vacuum cup inner plug according to claim 3, wherein, the first end comprising a plug-in protrusion, and the valve assembly comprising an abutting protrusion; when the cover is in the first position, the protrusion and the abutting protrusion abut against both sides of the plug-in protrusion, respectively.

5. The vacuum cup inner plug of claim 2, wherein, the clamping mechanism comprising a clamping plate connected to the valve assembly and movable with the valve assembly, the clamping plate being provided with a clamping groove, and the first end being connected with a clamping rib that is adapted to the clamping groove, the clamping rib falling into the clamping groove when the cover is rotated to the first position, and the wall of the clamping groove abutting against the clamping rib to limit the movement of the cover.

6. The vacuum cup inner plug of claim 1, wherein, the cover having a second end that is located above the outlet of the water outlet channel; wherein the cover has a second position, the cover being in the second position to drive the valve assembly to the closed state in which the valve assembly closes the water outlet channel inlet, and the second end being in the orthographic projection of the cover to cover the outlet of the water outlet channel.

7. The vacuum cup inner plug of claim 6, wherein, the plug body being provided with a channel wall that encloses the water outlet channel; when the cover is in the second position, the second end being in contact with the upper end surface of the channel wall to limit the cover from being flipped to one side of the water outlet channel.

8. The vacuum cup inner plug according to any one of claims 1-7, wherein, the plug body being provided with a mounting hole; the valve assembly comprising: a valve rod movably connected to the mounting hole, the upper end of the valve rod being in contact with the lower surface of the cover; a valve cap fixedly connected to the lower end of the valve rod, the valve cap being shaped to be adapted to the inlet of the water outlet channel to close the inlet of the water outlet channel; a resilient member connected between the valve rod and the plug body, the resilient member driving the valve rod to maintain the valve cap in the position in which the valve cap closes the inlet of the water outlet channel.

9. The vacuum cup inner plug of claim 8, wherein, the valve cap and the valve rod being detachably connected through a threaded structure.

10. The vacuum cup inner plug according to any one of claims 1-7, wherein, further comprising a filter connected to the plug body, the filter covering the inlet of the water outlet channel.

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