Water outlet device and pet water dispenser

Abstract

The application provides a water outlet device and a pet water dispenser. The water outlet device comprises a main shell, a motor assembly and a water guide frame. The main shell is internally provided with a sealed mounting cavity and a water outlet cavity. The motor assembly comprises a stator coil and a rotor assembly. The stator coil is arranged in the mounting cavity, and the rotor assembly is rotatably connected to the outer wall of the main shell. The water guide frame is sleeved outside the rotor assembly and is formed with a cavity for water pumping. The upper part of the water guide frame is sealingly connected to the bottom of the main shell, so that the cavity and the water outlet cavity are in communication. The lower part of the water guide frame is used for communicating with a water tank. The water outlet device and the pet water dispenser provided by the application are designed in a split type, so that the water outlet device has a wider range of adaptation, is small in size, low in cost and excellent in safety performance.

Description

Technical Field

[0001] This application relates to the field of pet supplies technology, and in particular to a water dispensing device and a pet water fountain. Background Technology

[0002] Most pet water fountains on the market consist of a water tank and a water dispensing device. The water dispensing device usually includes a water pump, a water supply pipe, a nozzle, and a water filter. Typically, the water pump is a submersible pump placed in the water tank. The water pumped by the submersible pump is connected to the nozzle on the water fountain cover through the lower water supply pipe, the water filter, and the upper water supply pipe. The water sprayed from the nozzle is poured into the water bowl for the pet to drink.

[0003] In the process of developing this application, the inventors discovered that the existing technology has at least the following problems: the water tank and water dispensing device are configured as a set, resulting in a large overall size and excessively high one-time investment costs for users. Furthermore, the assembled pet water fountain is complex to disassemble and assemble, difficult to clean, and poses a water pollution problem, which can easily cause health problems for pets. The submersible pump is placed inside the water tank, and its power supply wire is also underwater, which may pose a risk of leakage from the electrical components and wires. Summary of the Invention

[0004] Based on this, this application provides a water dispensing device and a pet water fountain to improve at least one of the problems caused by the large size, high overall investment cost, and poor safety of the complete water tank and water dispensing device in the prior art.

[0005] To achieve the above objectives, the technical solution of this application embodiment is implemented as follows:

[0006] On one hand, this application provides a water dispensing device for a pet water fountain, the water dispensing device including a main housing, a motor assembly and a water guide frame;

[0007] The main housing is provided with a sealed mounting cavity and a through water outlet cavity;

[0008] The motor assembly includes a stator coil and a rotor assembly. The stator coil is disposed in the mounting cavity, and the rotor assembly is rotatably connected to the outer wall of the main housing.

[0009] The water inlet frame is sleeved outside the rotor assembly, forming a cavity for pumping water. The upper part of the water inlet frame is sealed to the bottom of the main housing, so that the cavity and the water outlet cavity are connected. The lower part of the water inlet frame is used to connect with the water tank.

[0010] In one embodiment, the rotor assembly includes a rotor, an output shaft, and an impeller, with the two ends of the output shaft passing through the centers of the rotor and the impeller, respectively, and one end of the output shaft protruding from the rotor being rotatably connected to the bottom of the main housing.

[0011] In one embodiment, the bottom of the main housing is provided with a mounting hole, and the end of the output shaft is inserted into the mounting hole and is clearance-fitted with the mounting hole.

[0012] In one embodiment, the impeller includes an impeller shaft, a plurality of impeller blades surrounding the impeller shaft, and a pressure cap disposed on the side of the impeller blades near the rotor, and the output shaft passes through the central hole of the impeller shaft.

[0013] In one embodiment, the impeller is a one-piece molded structure.

[0014] In one embodiment, the rotor assembly is further provided with a rubber coating layer, which is disposed on the rotor and the output shaft.

[0015] In one embodiment, the water inlet frame includes an upper cover and a body portion, the body portion including a lower cover and a frame body connected together, a receiving cavity for accommodating the rotor is formed between the upper cover and the lower cover, and the frame body forms a cavity for accommodating the output shaft and the impeller.

[0016] In one embodiment, the top cover and the main housing are detachably connected.

[0017] In one embodiment, the main housing is further provided with a sealed control cavity, the control cavity is provided with a control board, the stator coil is electrically connected to the control board, and the control board is provided with an external interface.

[0018] On the other hand, this application provides a pet water fountain, including a water tank and a water dispensing device as described above, wherein the lower part of the water inlet frame is used to communicate with the water tank.

[0019] This application offers at least the following advantages: The water dispensing device provided is a separate component, eliminating the need for a complete water tank installation. Its compact size and economic efficiency are significant. The stator coil is located within the sealed mounting cavity of the main housing, while the rotor assembly is located outside the main housing. This design ensures that only the rotor assembly, which requires no electrical connection, is immersed in water, while the stator coil, which requires electrical connection, is completely isolated from the water, effectively improving the safety of the pet water fountain. The water dispensing device provides water to pets by inserting the water inlet frame into the water tank. By changing the design height of the water inlet frame, it can be adapted to water tanks of different sizes. The water dispensing device can be sold together with the compatible water tank, or users can purchase the water dispensing device separately and use it with their existing water tank to meet the diverse needs of different users. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the water outlet device according to an embodiment of this application.

[0021] Figure 2 for Figure 1 A cross-sectional structural diagram of the water outlet device.

[0022] Figure 3 for Figure 1 A schematic diagram of the exploded structure of the water outlet device.

[0023] Figure 4 This is a schematic diagram of the internal structure of the lower shell of the host according to an embodiment of this application.

[0024] Figure 5 for Figure 4 A schematic diagram of the bottom structure of the main unit's lower casing.

[0025] Figure 6 This is a schematic diagram of the top structure of the host casing according to an embodiment of this application.

[0026] Figure 7 for Figure 6 A schematic diagram of the bottom structure of the main unit's upper shell.

[0027] Figure 8 This is a schematic diagram of the impeller structure according to an embodiment of this application.

[0028] The meanings of the labels in the attached diagram are as follows:

[0029] 1. Main casing; 11. Upper casing of main unit; 111. Cover part; 112. Flow guide part; 1121. Through hole; 1122. Tube column; 12. Lower casing of main unit; 121. Control cavity; 1211. Opening groove; 122. Mounting cavity; 1221. Connecting port; 123. Protrusion; 124. Recess; 125. Mounting ring; 126. Mounting column; 1261. Mounting hole; 13. Water outlet cavity; 14. Fixed cover;

[0030] 2. Water inlet frame; 21. Top cover; 22. Main body; 221. Bottom cover; 2211. Receiving cavity; 222. Frame; 2221. Cavity; 223. Water inlet;

[0031] 3. Motor assembly; 31. Stator coil; 32. Rotor assembly; 321. Rotor; 322. Output shaft; 323. Impeller; 3231. Impeller shaft; 3232. Cover; 3233. Impeller blade; 324. Rubber coating layer;

[0032] 4. Control panel. Detailed Implementation

[0033] The technical solution of this application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to limit the ways in which this application may be implemented. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0035] In the description of this application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0036] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0037] Please refer to Figure 1 to... Figure 3 The water dispensing device of this application embodiment is used in a pet water fountain. The water dispensing device includes a main housing 1, a motor assembly 3, and a water guide frame 2.

[0038] The main housing 1 is provided with a sealed mounting cavity 122 and a through water outlet cavity 13.

[0039] The motor assembly 3 includes a stator coil 31 and a rotor assembly 32. The stator coil 31 is located in the mounting cavity 122, and the rotor assembly 32 is rotatably connected to the outer wall of the main housing 1.

[0040] The water inlet frame 2 is sleeved outside the rotor assembly 32, forming a cavity 2221 for pumping water. The upper part of the water inlet frame 2 is sealed to the bottom of the main housing 1, so that the cavity 2221 and the water outlet cavity 13 are connected. The lower part of the water inlet frame 2 is used to communicate with the water tank (not shown).

[0041] Specifically, the main housing 1 includes an upper housing 11 and a lower housing 12. For example... Figure 4 and Figure 5As shown, the lower casing 12 of the main unit is divided into two cavities: a mounting cavity 122 and a control cavity 121. The mounting cavity 122 is used to mount the stator coil 31 of the motor assembly 3. The stator coil 31 can be fixedly connected to the lower casing 12 of the main unit via a fixing cover 14. The control cavity 121 is used to mount the control board 4. The control board 4 can be directly fixed to the side wall of the control cavity 121 via a locking device. The bottom of the control cavity 121 (i.e., the end away from the upper casing 11 of the main unit) has an opening slot 1211 for connecting the external interface on the control board 4 to external components or devices, such as power cords, control switches, or control terminals (e.g., mobile devices like mobile phones). The control board 4 is electrically connected to the stator coil 31 to supply power to the stator coil 31 via an external power supply or a built-in power supply. The bottom of the mounting cavity 122 also has a connecting port 1221. Figure 2 , Figure 6 and Figure 7 As shown, the upper casing 11 of the main unit covers the lower casing 12 of the main unit, and is used to close the upper opening of the lower casing 12. The casing at the corresponding part of the upper casing 11 and the control cavity 121 forms a cover portion 111, and the casing at the corresponding part of the upper casing 11 and the mounting cavity 122 forms a guide portion 112. The guide portion 112 is a duckbill-shaped groove formed by the downward indentation of the cover portion 111. The bottom of the guide portion 112 is provided with a through hole 1121. The wall of the through hole 1121 extends downward to form a tube column 1122. The tube column 1122 is the water flow channel when the water inlet frame 2 pumps water. After the tube column 1122 is sealed and connected to the communication port 1221 at the bottom of the mounting cavity 122, the aforementioned water outlet cavity 13 is formed. After the control board 4 and stator coil 31 are fully installed into the lower housing 12 of the main unit, the upper housing 11 and the lower housing 12 of the main unit can be connected in a non-removable sealed manner to prevent accidental disassembly by the user and to effectively improve the waterproof performance of the main housing 1. For example, ultrasonic welding can be used for the connection. Figure 4 and Figure 5As shown, a protrusion 123 can be provided between the mounting cavity 122 and the control cavity 121 to divide the inner cavity of the main unit's lower casing 12 into two cavities. The protrusion 123 is a structure formed by the bottom wall of the main unit's lower casing 12 protruding upwards. Correspondingly, the outer wall of the main unit's lower casing 12 with the protrusion 123 forms a recess 124. The depth of the control cavity 121 is lower than the depth of the mounting cavity 122, that is, the distance between the bottom of the control cavity 121 and the cover portion 111 is smaller than the distance between the bottom of the mounting cavity 122 and the cover portion 111. The recess 124 can be used to insert into the installation position of the water tank to fix the water outlet device relative to the water tank. At the same time, the distance between the bottom of the control cavity 121 and the rotor assembly 32 is greater than the distance between the bottom of the mounting cavity 122 and the rotor assembly 32, which can prevent the bottom of the control cavity 121 from contacting water and improve the safety of the device. A raised mounting ring 125 is provided on the outer wall of the main unit lower housing 12 corresponding to the bottom of the mounting cavity 122. The mounting ring 125 encloses the communication port 1221. For example, a snap-fit ​​structure can be provided on the mounting ring 125 so that the water inlet frame 2 can be snapped into the main unit lower housing 12 through the snap-fit ​​structure to form a detachable connection. A protruding mounting post 126 is also provided on the outer wall of the main unit lower housing 12 at the center of the mounting ring 125. The mounting post 126 has a mounting hole 1261. The rotor assembly 32 is inserted into the mounting hole 1261 to form a rotatable connection with the main housing 1. In this embodiment, the control board 4 and the stator coil 31 are completely sealed in the main housing 1 and do not come into contact with water, which greatly improves the safety of the device. Its water outlet cavity 13 is completely isolated from the mounting cavity 122 and the control cavity 121, and there is almost no risk of leakage.

[0042] like Figure 2 and Figure 3As shown, the rotor assembly 32 of this embodiment includes a rotor 321, an output shaft 322, and an impeller 323. Both ends of the output shaft 322 pass through the centers of the rotor 321 and the impeller 323, respectively. One end of the output shaft 322 protrudes from the rotor 321 and is rotatably connected to the bottom of the main housing 1. The rotor 321 can be a magnet, the output shaft 322 can be a steel shaft, and the impeller 323 can be made of plastic. One end of the output shaft 322 protrudes from the center of the rotor 321 and is inserted into the mounting hole 1261 at the bottom of the lower housing 12 of the main unit. The output shaft 322 and the mounting hole 1261 are in a clearance fit, allowing the output shaft 322 to rotate relative to the main housing 1. In this embodiment, there is no direct connection between the rotor assembly 32 and the main housing 1; the relative rotation of the output shaft 322 is achieved only through the clearance fit between the output shaft 322 and the mounting hole 1261. This facilitates the disassembly, assembly, and cleaning of the rotor assembly 32, and the structure is simple and easy to maintain. Specifically, to prevent the magnets and steel shaft from being immersed in water for a long time and causing water pollution, the rotor 321 and output shaft 322 can be coated with rubber. After the rotor 321 and output shaft 322 are assembled, a rubber coating layer 324 is uniformly applied to their surfaces. Figure 8 As shown, the impeller 323 in this embodiment includes an impeller shaft 3231, a plurality of impeller blades 3233 surrounding the impeller shaft 3231, and a pressure cap 3232 disposed on the side of the impeller blades 3233 near the rotor 321. The output shaft 322 passes through the central hole of the impeller shaft 3231. The impeller 323 in this embodiment is an integrally formed structure. Compared with the traditional split structure, that is, the pressure cap 3232 and the impeller blades 3233 are separately set, the assembly process of the impeller 323 and the output shaft 322 in this embodiment is simpler. Moreover, the integral design can effectively reduce the overall size of the pressure cap 3232, so that the structural volume of the water inlet frame 2 used in conjunction with the rotor assembly 32 is reduced accordingly, thereby reducing the overall size of the water outlet device and making it more portable.

[0043] like Figure 2 and Figure 3As shown, the water intake frame 2 in this embodiment includes an upper cover 21 and a body 22. The body 22 includes a lower cover 221 and a frame 222 integrally connected. A receiving cavity 2211 for accommodating the rotor 321 is formed between the upper cover 21 and the lower cover 221. The frame 222 has a cavity 2221 for accommodating the output shaft 322 and the impeller 323. In this embodiment, the frame 222 is a cylindrical shell structure, fitted over the shaft and impeller 323. Its inner diameter is matched with the outer diameter of the impeller 323, so that when the impeller 323 rotates, it can draw water from the bottom of the frame 222 into the guide portion 112 of the main casing 1. A water inlet 223 is provided at the bottom of the frame 222. The receiving cavity 2211 in the lower cover 221 is used to place the rotor 321, and the upper cover 21 is placed inside the lower cover 221. The lower cover 221 has a snap-fit ​​structure that engages with the mounting ring 125 at the bottom of the main body upper shell 11, allowing for a convenient and detachable connection between the water inlet frame 2 and the main shell 1. Simultaneously, the water inlet frame 2 enables the rotor assembly 32 to be connected relative to the main shell 1. In this embodiment, the water inlet frame 2 and the main shell 1 are detachably connected, allowing the water inlet frame 2 and its internal rotor assembly 32 to be removed from the main shell 1. Then, the upper cover 21 and the rotor assembly 32 can be taken out, making it easy to disassemble and clean all components immersed in water, significantly reducing the possibility of water contamination in the tank.

[0044] This application embodiment also provides a pet water fountain, including a water tank (not shown) and a water outlet device as described in the above embodiment. The water inlet 223 at the lower part of the water inlet frame 2 is inserted below the water surface of the water tank, so that the water tank and the water inlet frame 2 are connected. In order to make it easy for all the water in the water tank to be drawn out, the water inlet 223 of the water inlet frame 2 can be inserted as close as possible to the bottom of the water tank cavity.

[0045] The working principle of the pet water fountain in this embodiment is as follows: Water is poured into the water tank, and the water outlet device and water tank are assembled so that the water inlet 223 at the bottom of the water inlet frame 2 is inserted underwater. The stator coil 31 is energized, and the energized stator coil 31 generates a changing magnetic field. The magnetic field force causes the rotor 321 to rotate. The rotor 321 drives the output shaft 322 and impeller 323, which are fixedly connected to it, to rotate. Thus, the water in the water tank is drawn from the water inlet 223 into the cavity 2221 of the frame 222, and then enters the water outlet cavity 13 of the main housing 1 through the receiving cavity 2211 of the upper cover 21 and the lower cover 221. It reaches the guide section 112 and forms a waterfall of water flowing downward through the outlet of the guide section 112. The top cover of the water tank has a water holding cavity, and the water drips into the water holding cavity. The pet can drink water at the water holding cavity or drink the waterfall water directly. A return hole can also be provided at the top cover of the water tank so that excess water can flow back into the water tank. To keep the water clean, a filter assembly can be installed in the water tank to filter the water and keep it clean. The water will then be filtered before entering the water outlet to supply water to the pet.

[0046] The water dispensing device and pet water dispenser provided in this application embodiment can be set up independently and used with any water tank, making it more portable and able to meet the different needs of different users. The water dispensing device can be designed to match different heights of water tanks, allowing the height of the rotor assembly to be arbitrarily designed within the head range. Combined with a water inlet frame structure of corresponding height, the water dispensing device can adapt to water tanks of different heights. The rotor assembly is rubber-coated, isolating the magnets and steel shaft from the water, reducing water contamination. Existing water pumps mostly use a separate design for the gland and impeller blades, where the impeller rotates within the cavity of the water inlet frame to complete the water suction and propulsion function. This design is inconvenient to assemble and easily results in an excessively large radial dimension of the rotor assembly, affecting the overall size of the device. This application integrates the gland and impeller blades into a single design, improving the ease of impeller installation, reducing the number of parts and assembly steps, and making it very convenient for users to disassemble and clean the water inlet assembly. The outer diameter of the water inlet frame in this application embodiment can be designed to be as small as twenty millimeters. Furthermore, all water-inlet components of the water outlet device are non-electric, which greatly improves the safety performance of the device. It has the advantages of small size, strong adaptability, few parts, convenient assembly, and safe use.

[0047] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0048] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A water dispensing device for a pet water fountain, characterized in that, The water outlet device includes a main housing, a motor assembly, and a water inlet frame; The main housing is provided with a sealed mounting cavity and a through water outlet cavity; The motor assembly includes a stator coil and a rotor assembly. The stator coil is disposed in the mounting cavity, and the rotor assembly is rotatably connected to the outer wall of the main housing. The water inlet frame is sleeved outside the rotor assembly, forming a cavity for pumping water. The upper part of the water inlet frame is sealed to the bottom of the main housing, so that the cavity and the water outlet cavity are connected. The lower part of the water inlet frame is used to connect to the water tank.

2. The water outlet device as described in claim 1, characterized in that, The rotor assembly includes a rotor, an output shaft, and an impeller. The two ends of the output shaft pass through the centers of the rotor and the impeller, respectively. One end of the output shaft protrudes from the rotor and is rotatably connected to the bottom of the main housing.

3. The water outlet device as described in claim 2, characterized in that, The bottom of the main housing is provided with a mounting hole, and the end of the output shaft is inserted into the mounting hole and is clearance-fitted with the mounting hole.

4. The water outlet device as described in claim 2, characterized in that, The impeller includes an impeller shaft, a plurality of impeller blades surrounding the impeller shaft, and a pressure cap disposed on the side of the impeller blades near the rotor. The output shaft passes through the central hole of the impeller shaft.

5. The water outlet device as described in claim 4, characterized in that, The impeller is a one-piece molded structure.

6. The water outlet device as described in claim 2, characterized in that, The rotor assembly is further provided with a rubber coating layer, which is disposed on the rotor and the output shaft.

7. The water outlet device as described in claim 6, characterized in that, The water intake frame includes an upper cover and a body. The body includes a lower cover and a frame connected together. A receiving cavity for accommodating the rotor is formed between the upper cover and the lower cover. The frame has a cavity for accommodating the output shaft and the impeller.

8. The water outlet device as described in claim 7, characterized in that, The top cover and the main housing are detachably connected.

9. The water outlet device as described in claim 1, characterized in that, The main housing is also provided with a sealed control cavity, and a control board is provided in the control cavity. The stator coil is electrically connected to the control board, and an external interface is provided on the control board.

10. A pet water fountain, characterized in that, It includes a water tank and a water outlet device as described in any one of claims 1 to 9, wherein the lower part of the water inlet frame is used to communicate with the water tank.

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