Upper water taking type water dispenser with mechanical water return function

Abstract

The utility model belongs to the technical field of water drinking equipment, and particularly relates to an upward water taking type water dispenser with a mechanical water return function, which is provided with a sealing element and a triggering element, so that when the triggering element moves to a first operation position, the sealing element is driven to close a vent hole and separate a water path from atmospheric pressure; the water pump can normally guide water from the water storage cavity to the water outlet nozzle, negative pressure generated when the water pump pumps water can stably adsorb the sealing piece to the vent hole to achieve sealing, and when the trigger piece moves to the second operation position, due to the fact that the vent hole is opened, the water way is communicated with the atmospheric pressure, and the water outlet nozzle is closed. When the water taking cover is opened, residual water in the water feeding pipe and the first water inlet pipe can flow back to the water storage cavity, so that the first water inlet pipe is arranged on the water taking cover, before the water taking cover is opened, the triggering piece is moved to the second operation position to achieve backflow of the residual water, when the water taking cover is opened again, no residual water flows out, bacterium breeding is prevented, and the service life of the water taking cover is prolonged. And moreover, a human body is prevented from being scalded.

Description

Technical Field

[0001] The utility model belongs to the technical field of drinking water equipment, and particularly relates to an upper water intake type drinking machine with a mechanical water return function. Background Art

[0002] The existing upper water intake type drinking machine includes three main parts: a main machine, a boiling water kettle, and a water intake cover. The main machine is responsible for water outlet and water pump control, and the boiling water kettle is provided with an open water storage cavity. Users can directly add water into it. After adding water, the user will cover the water intake cover to seal the water storage cavity to ensure the cleanliness of the water. The water intake cover is internally provided with a water delivery pipeline, which can be connected to the water outlet nozzle and the water storage cavity. When the water is heated to the boiling state, the water pump is started, and the water can flow through the water delivery pipeline to the water outlet nozzle for users to drink. However, there is also a potential problem with such drinking machines. When the water pump stops working, there may be some water remaining in the water delivery pipeline. If the user opens the water intake cover at this time, this part of the water will flow out, which is likely to scald the user. In order to improve the use safety, it is necessary to develop an upper water intake type drinking machine with a water return function. Summary of the Invention

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an upper water intake type drinking machine with a mechanical water return function.

[0004] To solve the above technical problems, the utility model adopts the following technical solutions:

[0005] An upper water intake type drinking machine with a mechanical water return function includes a water boiling device, a water inlet assembly, a water outlet assembly, and a water return assembly. The water boiling device is configured with a water storage cavity and a heating assembly for heating the water storage cavity; the water inlet assembly includes an upper water pipe, a first water inlet pipe, and a second water inlet pipe. The upper water pipe is placed in the water storage cavity, and the first water inlet pipe connects the upper water pipe and the second water inlet pipe; the water outlet assembly includes a water outlet nozzle, a water outlet pipe, and a water pump. The water pump connects the second water inlet pipe and the water outlet pipe, and the water outlet nozzle is connected to the water outlet pipe; the water return assembly includes a sealing member, an elastic reset member, and a movable trigger member. The first water inlet pipe is provided with a ventilation hole. The sealing member is floatingly arranged on the ventilation hole through the elastic reset member. The trigger member has at least a first operation position and a second operation position. The sealing member can move towards the side close to the ventilation hole to close the ventilation hole when the trigger member moves to the first operation position, and can reset towards the side away from the ventilation hole under the action of the elastic reset member to open the ventilation hole when the trigger member moves to the second operation position.

[0006] Compared with the prior art, the above-water drinking machine of the present utility model is provided with a sealing member and a triggering member. Therefore, when the triggering member moves to the first operating position, it drives the sealing member to close the air vent, cutting off the water path from the atmospheric pressure, ensuring that the water pump can normally guide the water body from the water storage cavity to the water outlet. Moreover, when the negative pressure generated by the water pump during pumping can firmly adsorb the sealing member on the air vent to achieve sealing. When the triggering member moves to the second operating position, since the air vent is opened, the water path is connected to the atmospheric pressure, and the residual water in the upper water pipe and the first water inlet pipe will flow back to the water storage cavity. Therefore, by arranging the first water inlet pipe on the water intake cover, before opening the water intake cover, the triggering member is first moved to the second operating position to realize the backflow of the residual water, and when the water intake cover is opened again, there will be no residual water flowing out, which not only prevents the growth of bacteria and is more hygienic, but also prevents scalding of the human body.

[0007] For the driving manner of the sealing member, the present embodiment provides the following two types.

[0008] The following provides two driving manners of the sealing member:

[0009] As the first type, a first magnet is provided on the sealing member, and the triggering member is correspondingly provided with a second magnet that is magnetically repulsive to the first magnet, and the repulsive force F generated between the first magnet and the second magnet is greater than the elastic force F of the elastic reset member.

[0010] As the second type, the triggering member is provided with a driving portion for pushing the sealing member, or the sealing member is provided with a driving portion in contact with the triggering member. When the triggering member moves to the first operating position, the sealing member is pushed towards the air vent through the driving portion. Preferably, the water return assembly further includes a third magnet fixedly provided on one side close to the first operating position, and the triggering member is provided with a fourth magnet that is magnetically attractive to the third magnet. When the triggering member moves to the first operating position, the third magnet and the fourth magnet attract each other, causing the triggering member to press against the sealing member.

[0011] Further, a filtering device is provided on the air vent, and the filtering device includes a filter element, and the filter element is provided as filter cotton; or the material of the filter element includes at least one of the following materials: activated carbon, HEPA filter material, polyester non-woven fabric, polypropylene.

[0012] Further, a waterproof and breathable membrane is provided on the air vent.

[0013] Further, a Hall switch for sensing the triggering member is further provided outside the air vent.

[0014] Furthermore, it also includes a main unit and a water intake cover, the water boiling device is assembled on the side of the main unit, and the upper side of its water storage chamber is open, the second water inlet pipe and the water outlet assembly are arranged on the main unit, the first water inlet pipe is arranged on the water intake cover, the upper end of the main unit is provided with a first interface connected to the second water inlet pipe, the water intake cover is detachably covered on the upper side of the water storage chamber, the bottom of the water intake cover is provided with a second interface connected to the first water inlet pipe corresponding to the first interface, the second interface is detachably sealed and connected to the first interface, the vent is opened on the upper side of the first water inlet pipe near one end of the second water inlet pipe, the sealing member is arranged on the upper side of the first water inlet pipe in a floating manner up and down through the elastic reset member, and the trigger member is swingably connected to the water intake cover.

[0015] Furthermore, a bracket is provided on the side of the water storage chamber, the upper water pipe is assembled on the bracket, and the bottom of the water intake cover is provided with a third interface connected to the first water inlet pipe corresponding to the upper water pipe, and the third interface is detachably sealed and connected to the upper end of the upper water pipe.

[0016] Furthermore, the sealing member includes a pressure plate, guide rods located on opposite sides of the pressure plate, and a sealing portion arranged on the lower side of the pressure plate. The first water inlet pipe is located at the insertion holes on opposite sides of the vent hole. The guide rod can be longitudinally inserted into the insertion hole and a buckle is provided at the bottom end thereof. The elastic reset member abuts between the bottom of the pressure plate and the upper side of the first water inlet pipe.

[0017] Furthermore, a hinged seat is provided on the upper side of the water intake cover, and the trigger member is hinged on the hinged seat so as to swing up and down. A limit stop is provided on the side of the hinged seat away from the vent hole. When the trigger member swings downward to contact the upper end of the water intake cover, it is in the first operating position, and can be switched to the second operating position by swinging upward by a preset angle from the first operating position.

[0018] Furthermore, it also includes a handle, wherein two hinged seats are arranged opposite to each other, two ends of the handle are respectively hinged to the corresponding hinged seats, and the trigger member is fixedly connected to the side of the handle.

[0019] Furthermore, a torsion spring for driving the trigger member to swing downward is arranged on the hinge seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of the upper water-drawing drinking fountain when the trigger member is located in the first operating position, a structural schematic diagram of the hinged seat, and a partial schematic diagram when the trigger member is located in the second operating position;

[0021] Figure 2 It is a schematic diagram of the water path structure of the top-intake water dispenser and a schematic diagram of the structure of the sealing component;

[0022] Figure 3 This is a schematic diagram of the structure of the trigger member using the first setting method;

[0023] Figure 4 A schematic diagram of the structure of the trigger member using the second setting method;

[0024] Figure 5 and Figure 6 This is an exploded view of the water intake cover, water boiling device and main unit. DETAILED DESCRIPTION

[0025] A preferred specific implementation of the present utility model is described below in conjunction with the accompanying drawings.

[0026] See also Figures 1 to 3 The present embodiment provides an upper water-intake drinking fountain with a mechanical water return function, comprising a main unit 5, a water boiling device 1, a water intake cover 6, a water inlet assembly 2, a water outlet assembly 3 and a water return assembly 4. The water boiling device 1 is assembled on the side of the main unit 5, and is provided with a water storage chamber 11 with an upper opening and a heating assembly for heating the water storage chamber 11. The water inlet assembly 2 comprises an upper water pipe 21 arranged in the water storage chamber 11, a first water inlet pipe 22 arranged in the water intake cover 6, and a second water inlet pipe 23 arranged in the main unit 5. The water outlet assembly 3 comprises a water outlet nozzle 31, a water outlet pipe 32 and a water pump 33 arranged on the main unit 5. The water pump 33 is connected to the second water inlet pipe 23. And a water outlet pipe 32, the water outlet nozzle 31 is connected to the water outlet pipe 32, the upper end of the main unit 5 is provided with a first interface 51 connected to the second water inlet pipe 23, the water intake cover 6 is detachably covered on the upper side of the water storage chamber 11, the bottom of the water intake cover 6 is provided with a second interface 61 connected to the first water inlet pipe 22 corresponding to the first interface 51, the second interface 61 is detachably and sealedly connected to the first interface 51, the side of the water storage chamber 11 is provided with a bracket 12, the upper water pipe 21 is assembled on the bracket 12, the bottom of the water intake cover 6 is provided with a third interface 62 connected to the first water inlet pipe 22 corresponding to the upper water pipe 21, the third interface 62 is detachably and sealedly connected to the upper end of the upper water pipe 21.

[0027] See also Figures 1 to 3The water return assembly 4 includes a sealing member 41, an elastic reset member 42 and a movable trigger member 43. In a specific embodiment, the first water inlet pipe 22 is provided with a vent hole 44 on the upper side near one end of the second water inlet pipe 23. The sealing member 41 is arranged on the upper side of the vent hole 44 in a manner that it can float up and down through the elastic reset member 42. The trigger member 43 has at least a first operating position 01 and a second operating position 02. When the trigger member 43 moves to the first operating position 01, the sealing member 41 can move to the side close to the vent hole 44, thereby closing the vent hole 44. When the trigger member 43 moves to the second operating position 02, the trigger member 43 is driven to reset and move upward under the action of the elastic reset member 42, thereby opening the vent hole 44. The above-mentioned detachable matching mode of the water intake cover 6 with the host 5 and the water boiling device 1 makes the water connection quick and convenient.

[0028] Compared with the prior art, the upper water-intake drinking fountain of the present invention is provided with a sealing member 41 and a trigger member 43. Therefore, when the trigger member 43 moves to the first operating position 01, the sealing member 41 is driven to close the vent 44, isolating the water path from the atmospheric pressure, ensuring that the water pump 33 can normally guide the water from the water storage chamber 11 to the water outlet 31, and the negative pressure generated when the water pump 33 pumps water can firmly adsorb the sealing member 41 on the vent 44 to achieve sealing, and when the trigger member 43 moves to the first operating position 01, the sealing member 41 is driven to close the vent 44, isolating the water path from the atmospheric pressure, and ensuring that the water pump 33 can normally guide the water from the water storage chamber 11 to the water outlet 31. In addition, when the water pump 33 pumps water, the negative pressure generated can firmly adsorb the sealing member 41 on the vent 44 to achieve sealing. When in the second operating position 02, since the vent hole 44 is opened, the water path is connected to the atmospheric pressure, and the residual water in the upper water pipe 21 and the first water inlet pipe 22 will flow back into the water storage chamber 11. Therefore, the first water inlet pipe 22 can be set on the water intake cover 6. Before opening the water intake cover 6, the trigger member 43 can be moved to the second operating position 02 to realize the backflow of the residual water. When the water intake cover 6 is opened again, no residual water will flow out, which not only prevents the growth of bacteria and is more hygienic, but also prevents scalding of the human body.

[0029] Regarding the driving modes of the sealing member 41 , this embodiment provides the following two modes.

[0030] 1. See Figure 2 and Figure 3 A first magnet 411 is provided on the sealing member 41, and the trigger member 43 is provided with a second magnet 412 corresponding to the first magnet 411 and magnetically repelling the first magnet 411, and the repulsive force F1 generated between the first magnet 411 and the second magnet 412 is greater than the elastic force F2 of the elastic reset member 42.

[0031] 2. See Figure 4, the trigger member 43 is provided with a driving part 431 for pushing up the sealing member 41, or the sealing member 41 is provided with a driving part 431 in contact with the trigger member 43, when the trigger member 43 moves to the first operating position 01, the sealing member 41 is pushed toward the vent hole 44 by the driving part 431. Of course, a through hole is provided on the host 5 for the driving part 431 to pass through. Further, for this method, the return water component 4 also includes a third magnet 413 fixedly arranged on a side close to the first operating position 01, and the trigger member 43 is provided with a fourth magnet 414 magnetically attracted to the third magnet 413, when the trigger member 43 moves to the first operating position 01, the third magnet 413 and the fourth magnet 414 attract each other, so that the trigger member 43 keeps pressing against the sealing member 41.

[0032] See also Figure 2 The sealing member 41 includes a pressing plate 415, guide rods 416 located on opposite sides of the pressing plate 415, and a blocking portion 417 arranged on the lower side of the pressing plate 415. The first water inlet pipe 22 is located at the insertion holes 221 on opposite sides of the vent hole 44. The guide rods 416 can be longitudinally inserted into the insertion holes 221, and a buckle 418 is provided at the bottom end thereof. The elastic reset member 42 abuts between the bottom of the pressing plate 415 and the upper side of the first water inlet pipe 22. The above-mentioned sealing member 41 is guided by the guide rods 416, and the buckle 418 is provided to facilitate the assembly of the sealing member 41 and prevent it from falling off.

[0033] See also Figure 1 , a hinge seat 63 is provided on the upper side of the water intake cover 6, and the trigger member 43 can be hinged on the hinge seat 63 so as to swing up and down. A limit stopper 64 is provided on the side of the hinge seat 63 away from the vent hole 44. In a specific embodiment, when the trigger member 43 swings downward to contact the upper end of the water intake cover 6, it is in the first operating position 01, and can be switched to the second operating position 02 by swinging upward by a preset angle from the first operating position 01. The limit stopper 64 is provided to ensure that the trigger member 43 can only swing to the side where the vent hole 44 is provided. It should be noted that the utility model does not limit the specific positions of the first operating position 01 and the second operating position 02. As long as the trigger member 43 moves to drive the sealing member 41 to close the vent hole 44, it is in the first operating position 01, and as long as the trigger member 43 moves to drive the sealing member 41 to reset and move to open the vent hole 44 under the action of the elastic reset member 42, it is in the second operating position 02.

[0034] See also Figure 1As an improved solution, it also includes a handle 65, two hinged seats 63 are relatively arranged, and the two ends of the handle 65 are respectively hinged to the corresponding hinged seats 63. The trigger member 43 is fixedly connected to the side of the handle 65. By integrating the handle 65 and the trigger member 43 together, the user can use the handle 65 to lift the water intake cover 6 while swinging the trigger member 43 upward, thereby opening the vent 44 to realize water return without swinging the trigger member 43 separately, which is more convenient and quick.

[0035] See also Figure 1 As an improved solution, a torsion spring 66 is provided on the hinge seat 63 for driving the trigger member 43 to swing downward, thereby driving the trigger member 43 to keep the vent 44 in a closed state when it is not operated, so as to prevent abnormal water supply from the water pump 33. Furthermore, a Hall switch for sensing the trigger member 43 can be provided on the outside of the vent 44. The Hall switch is a prior art and will not be described in detail here. By providing the Hall switch to sense the trigger member 43, in a specific usage scenario, the Hall switch can sense the trigger member 43 only when the trigger member 43 moves to the first operating position 01. Therefore, when the trigger member 43 is located at other positions other than the first operating position 01, once the user starts the water pump 33 at this time, the Hall switch will send a prompt signal to inform the user that water cannot be discharged normally at this time, and the control module of the water supply machine controls the water pump 33 to prohibit starting.

[0036] As an improved solution, the vent 44 is provided with a filter device, the filter device includes a filter element, and the filter element is configured as filter cotton; or the material of the filter element includes at least one of the following materials: activated carbon, HEPA filter material, polyester non-woven fabric, polypropylene

[0037] As an improved solution, the air vent 44 is provided with a filtering device, which includes a filter element for blocking dirt in the air, and the filter element is configured as filter cotton. Preferably, the filter cotton is silver ion filter cotton, which has effective antibacterial and filtering properties and can effectively filter bacteria and foreign matter, such as sand, dust, and insects; or, the material of the filter element includes at least one of the following materials: activated carbon, HEPA filter material, polyester non-woven fabric, and polypropylene.

[0038] As an improved solution, the vent hole 44 is provided with a waterproof breathable membrane, the filtration accuracy of which is between ultrafiltration and nanofiltration, i.e., between 0.1 micron and 0.01 micron, allowing air to enter but not water to leak, thereby preventing water leakage.

[0039] According to the disclosure and teaching of the above description, the technical personnel in the field to which the utility model belongs can also change and modify the above implementation. Therefore, the utility model is not limited to the specific implementation methods disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the utility model.

Claims

1. A top-intake drinking fountain with a mechanical water return function, characterized in that: include: A water boiling device (1) is provided with a water storage chamber (11) and a heating component for heating the water storage chamber (11); A water inlet assembly (2), comprising an upper water pipe (21), a first water inlet pipe (22) and a second water inlet pipe (23), wherein the upper water pipe (21) is disposed in the water storage chamber (11), and the first water inlet pipe (22) is connected to the upper water pipe (21) and the second water inlet pipe (23); A water outlet assembly (3), comprising a water outlet nozzle (31), a water outlet pipe (32) and a water pump (33), wherein the water pump (33) is connected to the second water inlet pipe (23) and the water outlet pipe (32), and the water outlet nozzle (31) is connected to the water outlet pipe (32); A water return assembly (4) comprises a sealing member (41), an elastic reset member (42) and a movable trigger member (43); the first water inlet pipe (22) is provided with a vent hole (44); the sealing member (41) is floatingly arranged on the vent hole (44) through the elastic reset member (42); the trigger member (43) has at least a first operating position (01) and a second operating position (02); the sealing member (41) can move toward a side close to the vent hole (44) to close the vent hole (44) when the trigger member (43) moves to the first operating position (01); and can reset to a side away from the vent hole (44) under the action of the elastic reset member (42) to open the vent hole (44) when the trigger member (43) moves to the second operating position (02).

2. The top-intake water dispenser according to claim 1, characterized in that: The sealing member (41) is provided with a first magnet (411), and the trigger member (43) is provided with a second magnet (412) corresponding to the first magnet (411) and magnetically repelling the first magnet (411), and the repulsive force F1 generated between the first magnet (411) and the second magnet (412) is greater than the elastic force F2 of the elastic return member (42); And / or, a filter device is provided on the vent hole (44), the filter device comprises a filter element, and the filter element is configured as filter cotton; or, the material of the filter element comprises at least one of the following materials: activated carbon, HEPA filter material, polyester non-woven fabric, polypropylene; And / or, the vent hole (44) is provided with a waterproof breathable membrane; And / or, it also includes a Hall switch arranged outside the vent hole (44) for sensing the trigger member (43).

3. The top-intake water dispenser according to claim 1, characterized in that: The trigger member (43) is provided with a driving portion (431) for pushing up the sealing member (41), or the sealing member (41) is provided with a driving portion (431) in contact with the trigger member (43), and when the trigger member (43) moves to the first operating position (01), the sealing member (41) is pushed toward the vent hole (44) by the driving portion (431).

4. The top-intake water dispenser according to claim 3, characterized in that: The water return assembly (4) further comprises a third magnet (413) fixedly arranged on a side close to the first operating position (01); the trigger member (43) is provided with a fourth magnet (414) magnetically attracted to the third magnet (413); when the trigger member (43) moves to the first operating position (01), the third magnet (413) and the fourth magnet (414) attract each other, so that the trigger member (43) presses against the sealing member (41).

5. The top-intake water dispenser according to any one of claims 1 to 4, characterized in that: The device also comprises a main unit (5) and a water intake cover (6), wherein the water boiling device (1) is mounted on the side of the main unit (5), the upper side of the water storage chamber (11) of the main unit (5) is open, the second water inlet pipe (23) and the water outlet assembly (3) are arranged on the main unit (5), the first water inlet pipe (22) is arranged on the water intake cover (6), the upper end of the main unit (5) is provided with a first interface (51) connected to the second water inlet pipe (23), the water intake cover (6) is detachably covered on the upper side of the water storage chamber (11), and the bottom of the water intake cover (6) is A second interface (61) communicating with the first water inlet pipe (22) is provided corresponding to the first interface (51); the second interface (61) is detachably sealed and connected to the first interface (51); the vent hole (44) is provided on the upper side of the first water inlet pipe (22) near one end of the second water inlet pipe (23); the sealing member (41) is arranged on the upper side of the first water inlet pipe (22) in a floating manner through the elastic reset member (42); and the trigger member (43) is swingably connected to the water intake cover (6).

6. The top-intake water dispenser according to claim 5, characterized in that: A bracket (12) is provided on the side of the water storage chamber (11), the upper water pipe (21) is mounted on the bracket (12), and a third interface (62) communicating with the first water inlet pipe (22) is provided at the bottom of the water intake cover (6) corresponding to the upper water pipe (21), and the third interface (62) is detachably sealed and connected to the upper end of the upper water pipe (21).

7. The top-intake water dispenser according to claim 5, characterized in that: The sealing member (41) comprises a pressing plate (415), a guide rod (416) located on two opposite sides of the pressing plate (415), and a blocking portion (417) arranged on the lower side of the pressing plate (415); the first water inlet pipe (22) is located at two opposite sides of the vent hole (44) of the plug hole (221); the guide rod (416) can be longitudinally movably inserted into the plug hole (221); a buckle (418) is provided at the bottom end thereof; and the elastic reset member (42) is abutted between the bottom of the pressing plate (415) and the upper side of the first water inlet pipe (22).

8. The top-intake water dispenser according to claim 5, characterized in that: A hinge seat (63) is provided on the upper side of the water intake cover (6), and the trigger member (43) is hinged on the hinge seat (63) so as to be able to swing up and down. A limit stopper (64) is provided on the hinge seat (63) on the side away from the vent hole (44). When the trigger member (43) swings downward until it contacts the upper end of the water intake cover (6), it is in the first operating position (01), and can be switched to the second operating position (02) by swinging upward from the first operating position (01) to a preset angle.

9. The top-intake water drinking machine according to claim 8, characterized in that: It also includes a handle (65), two hinged seats (63) are arranged opposite to each other, two ends of the handle (65) are respectively hinged to the corresponding hinged seats (63), and the trigger member (43) is fixedly connected to the side of the handle (65).

10. The top-intake water drinking machine according to claim 8, characterized in that: The hinge seat (63) is provided with a torsion spring (66) for driving the trigger member (43) to swing downward.

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