Water draining structure for thermos bottle and thermos bottle with water draining structure

Abstract

The utility model discloses a water draining structure for a thermos bottle and the thermos bottle with the water draining structure, the water draining structure comprises a base, a lower valve core assembly and two water pumps, the base is provided with a first water draining channel located at the upper part and two second water draining channels which are communicated with the first water draining channel and located at the lower part; the lower valve element assembly is arranged on the base and located on the top of the first sewer channel. The lower valve element assembly is used for being matched with an upper valve element assembly at the bottom of the inner container in an inserted mode so as to be communicated with the inner container. The two water pumps are located at the bottom of the base and communicated with the two second sewer channels respectively. Therefore, the two second sewer channels communicated with the first sewer channel are arranged on the base, and the two second sewer channels are respectively communicated with the water pumps, so that by adopting the two water pumps, the water pumping amount can be increased, the use scene with the large hot water supply demand can be met, and meanwhile, the two water pumps can be respectively communicated with the two hot water outlet pipes; therefore, the hot water outlet pipe can be independently controlled to be opened or closed, an electromagnetic valve does not need to be arranged on the hot water outlet pipe, and the design of the product on control logic is simple.

Description

Technical Field

[0001] The utility model relates to the field of thermos flasks, in particular to a water outlet structure for a thermos flask and a thermos flask with the same. Background Art

[0002] The information provided in this part is only the background information related to the present application to facilitate those skilled in the art to understand the present application more thoroughly and accurately, and it is not necessarily the prior art.

[0003] Thermos flasks are commonly used drinking water equipment. In order to meet the drinking and mixing needs of different people, some merchants have added an ice-making module to the thermos flasks, so as to realize functions such as quickly discharging hot water, cold water, cooled boiled water, and ice cubes, giving users more choices and greatly increasing the practicability.

[0004] Since the thermos flask needs to supply hot water to the ice-making module for ice-making or directly output hot water for users to drink, the common current practice is to set a water pump and two hot water outlet pipes at the bottom of the thermos flask. The water inlet end of the water pump is communicated with the water outlet hole of the thermos flask, the water outlet end of the water pump is communicated with the connection part of the two hot water outlet pipes, and electromagnetic valves are arranged on both hot water outlet pipes, and the opening and closing of the electromagnetic valves are used to open or close the hot water outlet pipes.

[0005] However, the above setting method has the following disadvantages: since only a single water pump is set, the water pumping volume is small, and when the demand for hot water supply is large, it may not be able to meet the demand; in addition, since electromagnetic valves need to be arranged on the hot water outlet pipes to realize opening and closing, not only the cost is increased, but also the design of the control logic is relatively complex. Summary of the Utility Model

[0006] In order to overcome the defects of the above-mentioned prior art, the utility model provides a water outlet structure for a thermos flask and a thermos flask with the same, which can solve the problems of small water pumping volume and complex control logic mentioned in the above background art.

[0007] The technical solution adopted by the utility model to solve its problems is as follows:

[0008] A water outlet structure for a thermos flask includes:

[0009] A base, which is provided with a first water outlet channel at the upper part and two second water outlet channels communicating with the first water outlet channel and located at the lower part;

[0010] A lower valve core assembly, which is arranged on the base and located at the top of the first water outlet channel; the lower valve core assembly is used for being inserted and matched with an upper valve core assembly at the bottom of the inner liner to realize communication with the inner liner;

[0011] Two water pumps, both of the two water pumps are located at the bottom of the base and are respectively communicated with the two second water discharge channels.

[0012] Further, the lower valve core assembly includes a lower water inlet pipe, a first sealing ring, a first elastic member, and a first lower valve core, wherein:

[0013] The first sealing ring is arranged at the top of the lower water inlet pipe;

[0014] The first lower valve core is movably arranged in the lower water inlet pipe;

[0015] The first elastic member is arranged in the lower water inlet pipe and one end thereof abuts against the first lower valve core; under the elastic force of the first elastic member, the first lower valve core can be driven to abut against the first sealing ring to seal the top of the lower water inlet pipe.

[0016] Further, it further includes a partition plate, a second lower valve core, a shaft body, a second sealing ring, and a second elastic member arranged in the lower water inlet pipe, wherein:

[0017] The partition plate divides the interior of the lower water inlet pipe into a first cavity and a second cavity which are arranged up and down. The first sealing ring, the first elastic member, and the first lower valve core are all located in the first cavity; a through hole is formed in the partition plate;

[0018] The second lower valve core is located in the second cavity; one end of the shaft body is fixed on the second lower valve core, and the other end thereof passes through the through hole and extends into the first lower valve core;

[0019] The second sealing ring is sleeved on the shaft body and is located in the second cavity;

[0020] The second elastic member is located in the second cavity, one end thereof abuts against the bottom of the second sealing ring, and the other end thereof abuts against the second lower valve core; under the elastic force of the second elastic member, the second sealing ring can be driven to abut against and seal the through hole;

[0021] The other end of the first elastic member abuts against the top of the second sealing ring.

[0022] Further, it further includes a housing sleeved on the outer periphery of the lower water inlet pipe. An installation groove is formed by enclosing between the top of the housing and the top of the lower water inlet pipe, and the first sealing ring is clamped in the installation groove.

[0023] Further, the water pump is a centrifugal pump. The centrifugal pump includes a front housing and an impeller, wherein:

[0024] A pump chamber is formed inside the front housing. An inlet communicating with the pump chamber is provided at the front end of the front housing, and an outlet communicating with the pump chamber is provided at the side of the front housing. The inlet communicates with the second downward water channel.

[0025] The impeller is rotatably arranged in the pump chamber.

[0026] Furthermore, it further includes a driving motor and a rear housing connected to the rear end of the front housing. An installation cavity is defined at the front end of the rear housing. The driving motor is installed at the rear end of the rear housing, and the output shaft of the driving motor extends into the installation cavity and is used for driving connection with the impeller.

[0027] Furthermore, it further includes a driving magnetic block sleeved on the output shaft and located in the installation cavity and a driven magnetic block arranged in the impeller and adsorbed with the driving magnetic block. When the driving motor is started to drive the output shaft to rotate, the impeller can be driven to rotate through the adsorption cooperation between the driving magnetic block and the driven magnetic block.

[0028] Furthermore, it further includes a partition plate arranged between the front housing and the rear housing and used for separating the pump chamber from the installation cavity. A fixed shaft is provided at the front end of the partition plate. The impeller is sleeved on the fixed shaft and can rotate around the fixed shaft.

[0029] Furthermore, it further includes a lower coupler arranged on the base and surrounding the outer periphery of the lower spool assembly. The lower coupler is used for coupling connection with an upper coupler at the bottom of the inner tank.

[0030] In addition, the present invention also provides a thermos flask, including a housing, an inner tank arranged in the housing, an upper spool assembly arranged at the bottom of the inner tank, and the above-mentioned downward water structure, wherein:

[0031] When the housing is placed on the base and the upper spool assembly is inserted and cooperated with the lower spool assembly, the inner tank communicates with the first downward water channel.

[0032] In summary, the downward water structure for a thermos flask and the thermos flask having the same provided by the present invention are provided with two second downward water channels communicating with the first downward water channel on the base, and two water pumps are respectively communicated with the two second downward water channels. With such a setting, using two water pumps can not only increase the water pumping volume to meet the use scenarios with a large demand for hot water supply, but also the two water pumps can be respectively communicated with two hot water outlet pipes, so that independent control can be achieved. Therefore, it is not necessary to set a solenoid valve on the hot water outlet pipe, making the design of the product in the control logic relatively simple. Description of the Drawings

[0033] Figure 1Explosion schematic diagram of the water drainage structure of the present utility model;

[0034] Figure 2 is Figure 1 structural schematic diagram from another perspective;

[0035] Figure 3 structural schematic diagram of the water drainage structure of the present utility model;

[0036] Figure 4 Cross-sectional schematic diagram of the lower spool assembly in the water drainage structure of the present utility model;

[0037] Figure 5 Structural schematic diagram of the centrifugal pump in the water drainage structure of the present utility model;

[0038] Figure 6 Cross-sectional schematic diagram of the centrifugal pump in the water drainage structure of the present utility model.

[0039] Among them, the meanings of the reference numerals are as follows:

[0040] 1. Base; 11. First water drainage channel; 12. Second water drainage channel; 2. Lower spool assembly; 21. Lower inlet pipe; 22. First sealing ring; 23. First elastic member; 24. First lower spool; 25. Housing; 26. Second sealing ring; 27. Second elastic member; 28. Second lower spool; 291. Shaft body; 292. Sealing sleeve; 3. Centrifugal pump; 31. Front housing; 311. Pump chamber; 312. Water inlet; 313. Water outlet; 32. Rear housing; 321. Installation cavity; 33. Driving motor; 34. Impeller; 35. Active magnetic block; 36. Driven magnetic block; 37. Partition plate; 371. Fixed shaft; 38. Third sealing ring; 4. Hot water outlet pipe; 5. Lower coupler. Detailed implementation manners

[0041] For better understanding and implementation, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0042] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the referred module or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this utility model belongs. The terms used in the specification of this utility model herein are only for the purpose of describing specific embodiments and are not intended to limit this utility model.

[0044] Embodiment 1

[0045] Referring to Figures 1-6 , this utility model provides a water outlet structure for a thermos flask, including a base 1, a lower valve core assembly 2, two water pumps, and two hot water outlet pipes 4. The base 1 is provided with a first water outlet channel 11 located in the upper part and two second water outlet channels 12 that communicate with the first water outlet channel 11 and are respectively located on both sides of the lower part; the lower valve core assembly 2 is arranged on the base 1 and located at the top of the first water outlet channel 11; the lower valve core assembly 2 is used for being inserted and matched with the upper valve core assembly at the bottom of the inner liner to realize communication with the inner liner; both water pumps are located at the bottom of the base 1 and are respectively communicated with the two second water outlet channels 12 and the two hot water outlet pipes 4. Among them, the water pump is a centrifugal pump 3, the water inlet 312 of the centrifugal pump 3 is communicated with the second water outlet channel 12, and the water outlet 313 of the centrifugal pump 3 is communicated with the hot water outlet pipe 4.

[0046] Thus, by providing two second water outlet channels 12 that communicate with the first water outlet channel 11 on the base 1, and each of the two second water outlet channels 12 is communicated with a water pump. With this arrangement, using two water pumps can not only increase the water pumping volume to meet the usage scenarios with a large demand for hot water supply, but also the two water pumps can be respectively communicated with the two hot water outlet pipes 4, so that the opening or closing of the hot water outlet pipes 4 can be independently controlled. Therefore, there is no need to set solenoid valves on the hot water outlet pipes 4, making the design of the product's control logic relatively simple. In addition, this application uses the centrifugal pump 3 as the water pump, which is easy to disassemble and clean, so problems such as scale are not likely to occur.

[0047] Referring to Figure 4 , the lower valve core assembly 2 includes a lower water inlet pipe 21, a first sealing ring 22, a first elastic member 23, and a first lower valve core 24. The first sealing ring 22 is arranged at the top of the lower water inlet pipe 21; the first lower valve core 24 is movably arranged in the lower water inlet pipe 21; the first elastic member 23 is arranged in the lower water inlet pipe 21 and one end thereof abuts against the first lower valve core 24; preferably, the first elastic member 23 is a spring.

[0048] Thus, under the elastic force of the first elastic member 23, it can drive the first lower valve core 24 to abut against the first sealing ring 22 to seal the top of the lower water inlet pipe 21. When the upper valve core assembly is inserted and matched with the lower valve core assembly 2, it can drive the first lower valve core 24 to overcome the elastic force of the first elastic member 23 and move to open the lower water inlet pipe 21.

[0049] Further, the lower spool valve assembly 2 further includes a partition plate, a second lower spool valve 28, a shaft body 291, a second sealing ring 26, and a second elastic member 27 disposed in the lower water inlet pipe 21. The partition plate divides the interior of the lower water inlet pipe 21 into a first cavity and a second cavity arranged vertically. The first sealing ring 22, the first elastic member 23, and the first lower spool valve 24 are all located in the first cavity. A through hole is formed in the partition plate. The second lower spool valve 28 is located in the second cavity. One end of the shaft body 291 is fixed to the second lower spool valve 28, and the other end passes through the through hole and extends into the first lower spool valve 24. The second sealing ring 26 is sleeved on the shaft body 291 and is located in the second cavity. The second elastic member 27 is located in the second cavity, one end of which abuts against the bottom of the second sealing ring 26, and the other end abuts against the second lower spool valve 28. Preferably, the second elastic member 27 is a spring.

[0050] Thus, under the elastic force of the second elastic member 27, the second sealing ring 26 can be driven to abut against and seal the through hole, thereby separating the first cavity from the second cavity. When the upper spool valve assembly is inserted and matched with the lower spool valve assembly 2, it can drive the first lower spool valve 24 to overcome the elastic force of the first elastic member 23 and move downward along the axis of the shaft body 291 until the first lower spool valve 24 abuts against the second sealing ring 26 and drives the second sealing ring 26 to overcome the elastic force of the second elastic member 27 and move. At this time, the through hole on the partition plate is opened to communicate the first cavity with the second cavity. At the same time, the upper spool valve in the upper spool valve assembly is lifted by the shaft body 291, and at this time, the upper spool valve assembly and the lower spool valve assembly 2 are completely communicated.

[0051] In this embodiment, the other end of the first elastic member 23 abuts against the top of the second sealing ring 26.

[0052] Further, the lower spool valve assembly 2 further includes a housing 25 sleeved on the outer periphery of the upper part of the lower water inlet pipe 21. An installation groove is formed by enclosing between the top of the housing 25 and the top of the lower water inlet pipe 21. The first sealing ring 22 is clamped in the installation groove. In addition, a sealing sleeve 292 is sleeved on the outer periphery of the lower part of the lower water inlet pipe 21. A stepped surface is provided inside the sealing sleeve 292, and the second lower spool valve 28 abuts against the stepped surface to achieve position limitation.

[0053] Refer to Figures 5-6, the centrifugal pump 3 includes a front housing 31 and an impeller 34. The front end of the front housing 31 is provided with a water inlet 312 perpendicular to its axis. An inlet passage is formed inside the water inlet 312, and a pump chamber 311 communicating with the inlet passage is formed inside the front housing 31; the impeller 34 is rotatably arranged in the pump chamber 311 and coaxially arranged with the front housing 31; a water outlet 313 perpendicular to its axis is provided on the side of the front housing 31, and the water outlet 313 is perpendicular to the water inlet 312; an outlet passage communicating with the pump chamber 311 is formed inside the water outlet 313.

[0054] Thus, during the normal operation of the centrifugal pump 3, by driving the impeller 34 to rotate, a negative pressure is formed in the pump chamber 311 when the impeller 34 rotates. External liquid can enter the pump chamber 311 from the inlet passage, and under the action of the centrifugal force of the impeller 34, the liquid in the pump chamber 311 is discharged from the outlet passage.

[0055] Furthermore, the centrifugal pump 3 further includes a rear housing 32 connected to the rear end of the front housing 31 and a drive motor 33 installed at the rear end of the rear housing 32. An installation cavity 321 is formed at the front end of the rear housing 32, and the output shaft of the drive motor 33 extends into the installation cavity 321 and is used for driving connection with the impeller 34. Specifically, it further includes a driving magnetic block 35 sleeved on the output shaft and located in the installation cavity 321 and a driven magnetic block 36 arranged inside the impeller 34 and adsorbed to the driving magnetic block 35. When the drive motor 33 is started and drives the output shaft to rotate, the impeller 34 can be driven to rotate through the adsorption cooperation between the driving magnetic block 35 and the driven magnetic block 36.

[0056] Among them, it further includes a partition plate 37 arranged between the front housing 31 and the rear housing 32 and used for separating the pump chamber 311 from the installation cavity 321. A fixed shaft 371 is integrally formed at the front end of the partition plate 37, and the impeller 34 is sleeved on the fixed shaft 371 and can rotate around the fixed shaft 371. In addition, it further includes a third sealing ring 38 arranged between the front end of the partition plate 37 and the rear end of the front housing 31. When the front housing 31 is connected to the rear housing 32, the upper and lower ends of the third sealing ring 38 are respectively abutted against the front housing 31 and the partition plate 37 to achieve waterproof sealing, thereby preventing water from entering the rear housing 32.

[0057] Of course, in other embodiments, a sealing ring can also be arranged between the rear end of the partition plate 37 and the front end of the rear housing 32 to further improve the waterproof performance of the centrifugal pump, and it is not limited here.

[0058] Refer again to Figures 1-4 , it further includes a lower coupler 5 arranged on the base 1 and surrounding the outer periphery of the lower spool assembly 2, and the lower coupler 5 is used for coupling connection with the upper coupler at the bottom of the inner tank.

[0059] Embodiment 2

[0060] In addition, the present utility model further provides a thermos flask, which includes a housing, an inner container disposed inside the housing, an upper valve core assembly disposed at the bottom of the inner container, an upper coupler disposed at the bottom of the inner container and surrounding the outer periphery of the upper valve core assembly, and the water discharge structure of the first embodiment. When the housing is placed on the base 1 and the upper valve core assembly is inserted and cooperated with the lower valve core assembly 2, the upper valve core assembly and the lower valve core assembly 2 are communicated with each other to realize the communication between the inner container and the first water discharge channel 11.

[0061] In summary, for the water discharge structure for a thermos flask and the thermos flask having the same provided by the present utility model, by providing two second water discharge channels 12 communicating with the first water discharge channel 11 on the base 1, and each of the two second water discharge channels 12 is communicated with a water pump. With such a setting, using two water pumps can not only increase the water pumping volume to meet the usage scenarios with a large demand for hot water supply, but also the two water pumps can be respectively communicated with the two hot water outlet pipes 4, so that independent control can be achieved. Therefore, it is not necessary to provide a solenoid valve on the hot water outlet pipe 4, making the design of the product in terms of control logic relatively simple. In addition, in this application, a centrifugal pump 3 is used as the water pump, which is easy to disassemble and clean, so problems such as scale formation are not likely to occur.

[0062] It should be understood that the orientation or positional relationship indicated by terms such as "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the module or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0063] In addition, in the description of the present utility model, the meanings of "a plurality of" and "several" are two or more, unless otherwise specifically defined.

[0064] The technical means disclosed in the solution of the present utility model are not limited to the technical means disclosed in the above embodiments, but also include technical solutions formed by any combination of the above technical features. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present utility model.

Claims

1. A water drainage structure for a thermos flask, characterized in that, Comprising: A base, which is provided with a first water drainage channel located at the upper part and two second water drainage channels communicating with the first water drainage channel and located at the lower part; A lower valve core assembly, which is arranged on the base and located at the top of the first water drainage channel; the lower valve core assembly is used for being inserted and cooperated with an upper valve core assembly at the bottom of the inner tank to realize the communication with the inner tank; Two water pumps, both of the two water pumps are located at the bottom of the base and are respectively communicated with the two second water drainage channels.

2. The water outlet structure for a thermos flask according to claim 1, characterized in that, The lower valve core assembly includes a lower water inlet pipe, a first sealing ring, a first elastic member and a first lower valve core, wherein: The first sealing ring is arranged at the top of the lower water inlet pipe; The first lower valve core is movably arranged in the lower water inlet pipe; The first elastic member is arranged in the lower water inlet pipe and one end thereof abuts against the first lower valve core; under the elastic force of the first elastic member, the first lower valve core can be driven to abut against the first sealing ring to seal the top of the lower water inlet pipe.

3. The water outlet structure for a thermos flask according to claim 2, characterized in that, It further includes a partition plate, a second lower valve core, a shaft body, a second sealing ring and a second elastic member arranged in the lower water inlet pipe, wherein: The partition plate divides the interior of the lower water inlet pipe into a first cavity and a second cavity which are arranged up and down, and the first sealing ring, the first elastic member and the first lower valve core are all located in the first cavity; a through hole is formed in the partition plate; The second lower valve core is located in the second cavity; one end of the shaft body is fixed on the second lower valve core, and the other end thereof passes through the through hole and extends into the first lower valve core; The second sealing ring is sleeved on the shaft body and located in the second cavity; The second elastic member is located in the second cavity and one end thereof abuts against the bottom of the second sealing ring, and the other end thereof abuts against the second lower valve core; under the elastic force of the second elastic member, the second sealing ring can be driven to abut against and seal the through hole; The other end of the first elastic member abuts against the top of the second sealing ring.

4. The water outlet structure for a thermos flask according to claim 2, characterized in that, It further includes a housing sleeved on the outer periphery of the lower water inlet pipe, and an installation groove is formed by enclosing between the top of the housing and the top of the lower water inlet pipe, and the first sealing ring is clamped in the installation groove.

5. The water outlet structure for a thermos flask according to any one of claims 1-4, characterized in that, The water pump is a centrifugal pump, and the centrifugal pump includes a front housing and an impeller, wherein: A pump cavity is formed inside the front housing, a water inlet communicating with the pump cavity is arranged at the front end of the front housing, and a water outlet communicating with the pump cavity is arranged at the side part of the front housing; the water inlet is communicated with the second water drainage channel; The impeller is rotatably arranged in the pump cavity.

6. The water discharge structure for a thermos according to claim 5, characterized in that, It further includes a driving motor and a rear housing connected to the rear end of the front housing, an installation cavity is defined at the front end of the rear housing, the driving motor is installed at the rear end of the rear housing, and an output shaft of the driving motor extends into the installation cavity and is used for being in transmission connection with the impeller.

7. The water discharge structure for a thermos flask according to claim 6, characterized in that, It further includes a driving magnetic block sleeved on the output shaft and located in the installation cavity and a driven magnetic block arranged in the impeller and adsorbed with the driving magnetic block; when the driving motor is started to drive the output shaft to rotate, the impeller can be driven to rotate through the adsorption cooperation between the driving magnetic block and the driven magnetic block.

8. The water outlet structure for a thermos flask according to claim 7, wherein, It further includes a partition plate disposed between the front housing and the rear housing and used for separating the pump chamber from the installation chamber. A fixed shaft is provided at the front end of the partition plate, and the impeller is sleeved on the fixed shaft and can rotate around the fixed shaft.

9. The water outlet structure for a thermos flask according to claim 1, characterized in that, It further includes a lower coupler disposed on the base and surrounding the outer periphery of the lower valve core assembly. The lower coupler is used for coupling connection with an upper coupler at the bottom of the inner tank.

10. A thermos flask, characterized in that, It includes a housing, an inner tank disposed in the housing, an upper valve core assembly disposed at the bottom of the inner tank, and a drain structure according to any one of claims 1-9, wherein: When the housing is placed on the base and the upper valve core assembly is inserted and cooperated with the lower valve core assembly, the inner tank is communicated with the first drain channel.

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