Vacuum cup capable of automatically feeding water from bottom

Abstract

The utility model relates to the technical field of vacuum cups, in particular to a vacuum cup capable of automatically feeding water at the bottom, which is provided with a cup shell, a cup liner is arranged in the cup shell, a cup bottom is arranged at the bottom of the cup shell, a concave water inlet is arranged at the lower end of the cup bottom, and the cup bottom is connected with the cup liner through a check valve component. The water inlet is communicated with the interior of the cup liner through a check valve assembly; according to the vacuum cup, the check valve assembly is arranged between the cup bottom and the cup inner container, water is pumped to the check valve assembly through the water inlet in the lower end of the cup shell, drinking water can enter the cup inner container through the check valve assembly, the drinking water is prevented from flowing back and being output from the cup bottom, and compared with the prior art, the whole structure is simpler, no electric component needs to be attached, and cost is reduced. The weight of the vacuum cup is greatly reduced, and carrying is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of thermos cups, in particular to a thermos cup with automatic water supply at the bottom. Background Art

[0002] Thermos cups are common cups in daily life, which are easy to carry and have certain heat preservation performance. However, when water needs to be filled in the existing thermos cups, the cup cover at the upper end is opened and the water is poured into the cup liner.

[0003] As people's quality of life gradually improves, a base that can fill water from the bottom has also appeared on the market. By placing the kettle on the base, water is automatically pumped into the kettle, and then the water is heated. After the water is hot, the water can be pumped out from the bottom of the kettle to output hot water without picking up the kettle to pour water, such as the automatic water filling kettle disclosed in Chinese patent document CN210095482U. However, with the development of technology, the base of this automatic water filling kettle has a structure that can be used with a water cup, and drinking water can be directly pumped into the cup for easy drinking.

[0004] However, the structure of the existing automatic water-filling thermos cup is relatively complex. For example, the automatic water-filling intelligent electric thermos cup disclosed in Chinese patent document CN217610654U includes a cup cover, a cup shell, a cup liner, a cup bottom shell, a heating component, a temperature sensing component, and a control power supply. The cup shell is set on the outside of the cup liner, the cup bottom shell is connected to the bottom of the cup shell and forms a cup body accommodating cavity with the bottom of the cup liner, the heating component is arranged in the cup body accommodating cavity, the cup cover and the mouth of the cup liner are screwed together by threads, the temperature sensing component is arranged in the cup cover, and also includes an automatic water-filling module, which is arranged in the cup body accommodating cavity, the automatic water-filling module connects the inside of the cup liner and the outside of the cup bottom shell, and the heating component, the temperature sensing component, and the automatic water-filling module are electrically connected to the control power supply respectively. Combined with the content disclosed in the patent document, this automatic water-filling thermos cup also needs to be provided with a heating component, so that the structure of the cup body is accompanied by electrical components, making the structure relatively complex and heavy, and not suitable for carrying. Utility Model Content

[0005] In order to overcome the defects of the prior art, the utility model provides a thermos cup with automatic water filling at the bottom, aiming to solve the above problems.

[0006] The utility model solves the technical problem by adopting the following technical solution: a thermos cup with automatic water supply from the bottom, which comprises a cup outer shell, a cup liner is arranged inside the cup outer shell, a cup bottom is arranged at the bottom of the cup outer shell, a concave water inlet is arranged at the lower end of the cup bottom, the cup bottom and the cup liner are connected by a check valve assembly, and the water inlet is communicated with the inside of the cup liner through the check valve assembly.

[0007] The beneficial effect of the utility model lies in that a check valve assembly is arranged between the bottom of the cup and the inner liner of the cup, and water is pumped to the check valve assembly through the water inlet at the lower end of the cup shell, so that drinking water can enter the inner liner of the cup through the check valve assembly, and the drinking water is prevented from flowing back and being output from the bottom of the cup. The entire structure is simpler than that of the prior art, does not require additional electrical components, greatly reduces the weight of the thermos cup, and is more convenient to carry.

[0008] Furthermore, the check valve assembly includes a valve seat installed in the cup liner and a connecting seat installed above the water inlet, the check valve is clamped on the upper end of the valve seat, and the lower end of the valve seat is clamped on the connecting seat.

[0009] After adopting the above-mentioned further structure, the check valve is clamped on the valve seat, and the valve seat is installed on the cup liner, and the lower end of the valve seat is clamped on the connecting seat, so that drinking water can enter the cup liner through the check valve after entering from the water inlet, and the structure is compact and simple.

[0010] Furthermore, a groove is provided on the inner liner of the cup, a valve cylinder is integrally provided at the lower end of the valve seat, a cavity is provided in the valve cylinder, a valve slot is provided at the upper end of the valve seat, a valve hole connected to the cavity is provided in the valve slot, a clamping ring is provided at one end of the valve hole close to the cavity, the check valve is located in the valve slot, and the check valve passes through the valve hole and is clamped on the clamping ring.

[0011] After adopting the above-mentioned further structure, the valve seat can be better installed in the cup liner, and the installation of the check valve is convenient and the structure is stable.

[0012] Furthermore, a connecting ring is provided at the lower end of the check valve, a water inlet end is provided at the lower end of the connecting ring, a channel is provided in the check valve, the connecting ring and the water inlet end, a one-way diaphragm located on the check valve is provided at the upper end of the channel, an outlet is provided on the one-way diaphragm, the connecting ring is passed through the valve hole, the water inlet end is located in the cavity and is clamped on the clamping ring.

[0013] After adopting the above-mentioned further structure, the check valve can be connected to the cavity through the water inlet end, so that drinking water can enter from the water inlet end and be output from the outlet on the one-way diaphragm into the cup liner. In addition, the check valve can be better installed on the valve seat through the water inlet end to prevent it from falling off or loosening.

[0014] Furthermore, a connecting cylinder is provided at the upper end of the water inlet, the connecting seat is installed in the connecting cylinder, a ball seat is provided in the connecting seat, a through hole connected to the water inlet is opened in the ball seat, a valve cylinder groove is formed between the outer wall of the ball seat and the inner wall of the connecting seat, the lower end of the valve cylinder is inserted in the valve cylinder groove, a ball is placed on the ball seat so that the ball is located in the cavity, and a spring is provided between the ball and the water inlet end, and the thrust of the spring is less than the pressure of the incoming water.

[0015] After adopting the above-mentioned further structure, when drinking water is pumped in from the water inlet, the drinking water enters the cavity through the through hole and enters the cup liner through the water inlet end. When drinking water is not pumped in, the ball blocks the through hole under the action of gravity to prevent foreign matter from entering. Since the valve cylinder is inserted in the valve cylinder groove, it can better play a sealing role to prevent water leakage, and the valve seat can be further stabilized on the bottom of the cup to prevent loosening.

[0016] Furthermore, the upper surface of the ball seat is an inclined surface.

[0017] After adopting the above further structure, the ball can fit more closely on the inclined surface and has better sealing performance.

[0018] Furthermore, the outer wall of the valve cylinder is threadedly connected with a hexagonal nut, and the hexagonal nut is located on the lower end surface of the cup liner.

[0019] After adopting the above further structure, the valve seat can be locked and installed in the groove by the hexagonal nut, so as to further prevent the valve seat from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is a three-dimensional structural schematic diagram of a thermos cup with automatic water supply at the bottom.

[0021] Figure 2 for Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the connecting seat.

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the valve seat and the valve cylinder.

[0024] Figure 5 Schematic diagram of the three-dimensional structure of the check valve.

[0025] In the figure: cup shell 1, cup liner 2, cup bottom 3, water inlet 4, connecting tube 6, groove 7, connecting seat 8, valve seat 9, valve tube 10, check valve 11, ball 12, ball seat 13, through hole 14, valve tube groove 15, cavity 16, valve groove 17, valve hole 18, retaining ring 19, connecting ring 20, water inlet end 21, channel 22, one-way diaphragm 23, hexagonal nut 24. DETAILED DESCRIPTION

[0026] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0027] Combination Figures 1 to 5 The thermos cup with automatic water filling at the bottom shown in the figure comprises a cup shell 1, a cup liner 2 is arranged in the cup shell 1, a cup bottom 3 is arranged at the bottom of the cup shell 1, a concave water inlet 4 is arranged at the lower end of the cup bottom 3, the cup bottom 3 and the cup liner 2 are connected by a check valve assembly, and the water inlet 4 is communicated with the inside of the cup liner 2 through the check valve assembly; in this embodiment, a check valve assembly is arranged between the cup bottom 3 and the cup liner 2, and water is pumped to the check valve assembly through the water inlet 4 at the lower end of the cup shell 1, so that drinking water can enter the cup liner 2 through the check valve assembly, and the drinking water is prevented from flowing back and being output from the cup bottom 3. The whole structure is simpler than that of the prior art, and does not require any accompanying electrical components, which greatly reduces the weight of the thermos cup and makes it more convenient to carry.

[0028] It is worth noting that the cup bottom 3 and the cup shell 1 of this embodiment are connected by threads to facilitate assembly.

[0029] like Figure 2 As shown, the check valve assembly of this embodiment includes a valve seat 9 installed in the cup inner liner 2 and a connecting seat 8 installed above the water inlet 4, the upper end of the valve seat 9 is clamped with a check valve 11, and the lower end of the valve seat 9 is clamped on the connecting seat 8; by clamping the check valve 11 on the valve seat 9, and the valve seat 9 is installed on the cup inner liner 2, and the lower end of the valve seat 9 is clamped on the connecting seat 8, the drinking water can enter the cup inner liner 2 through the check valve 11 after entering from the water inlet 4, and the structure is compact and simple.

[0030] The connecting seat 8 and the check valve 11 of this embodiment are both made of silicone material, which has better sealing performance. A groove 7 is provided on the cup liner 2. A valve cylinder 10 is integrally provided at the lower end of the valve seat 9. A cavity 16 is provided in the valve cylinder 10. A valve slot 17 is provided at the upper end of the valve seat 9. A valve hole 18 connected to the cavity 16 is provided in the valve slot 17. A clamping ring 19 is provided at one end of the valve hole 18 close to the cavity 16. The check valve 11 is located in the valve slot 17. The check valve 11 passes through the valve hole 18 and is clamped on the clamping ring 19. The valve seat 9 can be better installed in the cup liner 2, and the installation of the check valve 11 is convenient. The structure is stable. The inner diameter of the groove is the same as the outer diameter of the valve seat 9, so that the two are more fitted and the sealing performance is improved.

[0031] It is worth noting that the outer wall of the valve cylinder 10 of this embodiment is threadedly connected with a hexagonal nut 24, and the hexagonal nut 24 is located on the lower end surface of the cup liner 2; the valve seat 9 can be locked and installed in the groove 7 through the hexagonal nut 24, further preventing the valve seat 9 from loosening.

[0032] like Figure 2 and Figure 5As shown, the check valve 11 of this embodiment is provided with a connecting ring 20 at the lower end, and a water inlet terminal 21 is provided at the lower end of the connecting ring 20. A channel 22 is provided in the check valve 11, the connecting ring 20 and the water inlet terminal 21. A one-way diaphragm 23 located on the check valve 11 is provided at the upper end of the channel 22, and an outlet is provided on the one-way diaphragm 23. The connecting ring 20 is penetrated into the valve hole 18, and the water inlet terminal 21 is located in the cavity 16 and is clamped on the clamping ring 19; the outer diameter of the connecting ring 20 is the same as the inner diameter of the clamping ring 19, and the check valve 11 can be connected to the cavity 16 through the water inlet terminal 21, so that drinking water can enter from the water inlet terminal 21 and be output from the outlet on the one-way diaphragm 23 to enter the cup liner 2, and the check valve 11 can be better installed on the valve seat 9 through the water inlet terminal 21 to prevent it from falling off or loosening.

[0033] like Figure 2 and Figure 3 As shown, the upper end of the water inlet 4 of this embodiment is provided with a connecting cylinder 6, the connecting seat 8 is installed in the connecting cylinder 6, a ball seat 13 is provided in the connecting seat 8, a through hole 14 connected to the water inlet 4 is opened in the ball seat 13, a valve cylinder groove 15 is formed between the outer wall of the ball seat 13 and the inner wall of the connecting seat 8, the lower end of the valve cylinder 10 is inserted in the valve cylinder groove 15, a ball 12 is placed on the ball seat 13, so that the ball 12 is located in the cavity 16, and a through hole 14 connected to the water inlet 4 is opened in the ball seat 13. There is a spring (not shown), the thrust of the spring is less than the pressure of the water inlet; when drinking water is pumped in from the water inlet 4, the drinking water enters the cavity 16 through the through hole 14, and enters the cup liner 2 through the water inlet end 21. When drinking water is not pumped in, the ball 12 blocks the through hole 14 under the action of gravity to prevent foreign matter from entering. Since the valve cylinder 10 is inserted in the valve cylinder groove 15, it can better play a sealing role to prevent water leakage, and the valve seat 9 is further stabilized on the cup liner 2 to prevent loosening.

[0034] It is worth noting that the upper surface of the ball seat 13 of the present embodiment is an inclined surface; the ball 12 can fit more closely on the inclined surface and has a better sealing performance.

[0035] It is also worth mentioning that, in some embodiments, a plug may be provided at the water inlet 4 to facilitate blocking the water inlet 4 during daily carrying, thereby further preventing foreign matter from entering the cavity 16 .

[0036] The thermos cup of this embodiment can be matched with a water supply base (not shown), and the water inlet 4 of the thermos cup only needs to be inserted into the water supply seat on the base, and drinking water can be output through the pump body in the base.

[0037] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. A thermos cup with automatic water supply from the bottom, comprising a cup shell (1), a cup liner (2) arranged in the cup shell (1), and a cup bottom (3) arranged at the bottom of the cup shell (1), characterized in that: A concave water inlet (4) is provided at the lower end of the cup bottom (3); the cup bottom (3) and the cup liner (2) are connected via a check valve assembly; and the water inlet (4) is connected to the interior of the cup liner (2) via the check valve assembly.

2. A thermos cup with automatic bottom water supply according to claim 1, characterized in that: The check valve assembly comprises a valve seat (9) installed in the cup liner (2) and a connecting seat (8) installed above the water inlet (4); the check valve (11) is clamped on the upper end of the valve seat (9), and the lower end of the valve seat (9) is clamped on the connecting seat (8).

3. A thermos cup with automatic bottom water supply according to claim 2, characterized in that: The cup liner (2) is provided with a groove (7), the lower end of the valve seat (9) is integrally provided with a valve cylinder (10), the valve cylinder (10) has a cavity (16), the upper end of the valve seat (9) is provided with a valve groove (17), the valve groove (17) is provided with a valve hole (18) connected to the cavity (16), the valve hole (18) is provided with a clamping ring (19) at one end of the valve hole (18) close to the cavity (16), the check valve (11) is located in the valve groove (17), the check valve (11) passes through the valve hole (18) and is clamped on the clamping ring (19).

4. A thermos cup with automatic bottom water supply according to claim 3, characterized in that: A connecting ring (20) is provided at the lower end of the check valve (11), and a water inlet end (21) is provided at the lower end of the connecting ring (20). A channel (22) is provided in the check valve (11), the connecting ring (20) and the water inlet end (21). A one-way diaphragm (23) located on the check valve (11) is provided at the upper end of the channel (22), and an outlet is provided on the one-way diaphragm (23). The connecting ring (20) is inserted into the valve hole (18), and the water inlet end (21) is located in the cavity (16) and is clamped on the clamping ring (19).

5. A thermos cup with automatic bottom water supply according to claim 4, characterized in that: A connecting cylinder (6) is provided at the upper end of the water inlet (4), the connecting seat (8) is installed in the connecting cylinder (6), a ball seat (13) is provided in the connecting seat (8), a through hole (14) connected to the water inlet (4) is provided in the ball seat (13), a valve cylinder groove (15) is formed between the outer wall of the ball seat (13) and the inner wall of the connecting seat (8), the lower end of the valve cylinder (10) is inserted into the valve cylinder groove (15), a ball (12) is placed on the ball seat (13) so that the ball (12) is located in the cavity (16), and a spring is provided between the ball (12) and the water inlet end (21).

6. A thermos cup with automatic bottom water supply according to claim 5, characterized in that: The upper surface of the ball seat (13) is an inclined surface.

7. The thermos cup with automatic bottom water supply according to claim 3, characterized in that: The outer wall of the valve cylinder (10) is threadedly connected with a hexagonal nut (24), and the hexagonal nut (24) is located on the lower end surface of the cup liner (2).

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