A pet shower machine driven by a brushless motor

Abstract

The utility model discloses a pet shower machine of brushless motor drive, it includes: shell, motor frame, its installation in the shell, and form with the shell between installation cavity, impeller cover, its installation in the motor frame lower extreme, and form with the installation cavity isolated pump water chamber, and the motor frame forms the water pipe, and the water pipe is connected water pipe, and the water pipe is connected with the booster shower, brushless motor, it includes stator subassembly and rotor subassembly, and the rotor subassembly lower extreme has the impeller, and the sand cover is installed in the motor frame lower extreme, and the sand cover is equipped with the filter element, and the impeller cover lower extreme is equipped with the water inlet, and the sand cover lower extreme periphery is equipped with the water pumping pinhole. The utility model can realize the recycling of water, avoid causing water waste, and the overall volume is relatively smaller, and convenient to carry and use, the utility model discloses adopt the booster shower and spray water, make the water flow big and dense, the utility model discloses enough realize super low water level water inlet, satisfy different use requirement, and use brushless motor, and its life is long, and the power consumption is lower.

Description

Technical Field

[0001] This utility model relates to the field of pet bathing machine technology, specifically a pet bathing machine driven by a brushless motor. Background Technology

[0002] Pets are creatures kept by people for spiritual purposes rather than economic purposes. Modern people keep cats and dogs as companions to relieve their mental stress. However, in order to ensure the health of the owners and the hygiene of the home, pets need to be vaccinated and cleaned regularly. However, due to the nature of some pets, they are afraid of water and resist when being cleaned, which makes it inconvenient for them to be cleaned.

[0003] Nowadays, to ensure hygiene, most pets are cleaned by their owners, who typically use pet bathing machines.

[0004] Chinese utility model patent application number 202121255878.1 discloses a pet bathing machine, relating to the technical field of bathing machines. This utility model includes a rinsing head, a spray system, and a back-suction system. The rinsing head has multiple protrusions on its rinsing surface for brushing the pet's fur. Both the protrusions and the rinsing surface have back-suction holes connected to the back-suction system. The rinsing surface also has spray nozzles connected to the spray system. When bathing a pet, the rinsing head brushes the pet's fur, and water is sprayed onto the pet in a mist form by the spray system. The water on the pet is then sucked away by the back-suction system. The pet only gets locally damp, and the fur is only lightly wet. After a brief period of dampness, most of the moisture is absorbed by the back-suction system. Pets do not exhibit much resistance during bathing. The back-suction holes on both the rinsing surface and the protrusions of the rinsing head effectively absorb moisture from the tips to the roots of the pet's fur.

[0005] The aforementioned pet bathing machine has a built-in clean water tank for its spray system, which supplies water to the system and sprays it onto the pet in a mist form. The back-suction system also has a wastewater tank, which collects and transfers wastewater. This means the entire pet bathing machine is extremely bulky, making it inconvenient to carry and use. Furthermore, the rinsing head requires a large amount of water and detergent to brush the pet's fur. After the pet is fully wet, this water goes directly into the clean water tank, preventing the reuse of bathwater and resulting in some waste.

[0006] In view of the above, the inventors propose the following technical solution. Utility Model Content

[0007] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a brushless motor driven pet bathing machine.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The brushless motor driven pet bathing machine includes: a housing; a motor frame, which is installed inside the housing and forms an installation cavity between the motor frame and the housing; an impeller cover, which is installed at the lower end of the motor frame and forms a pumping chamber isolated from the installation cavity with the lower end of the motor frame; the motor frame is formed with a water outlet pipe that communicates with the pumping chamber and extends upward outside the upper end of the housing; the water outlet pipe is connected to a water pipe, which is connected to a pressure-boosting shower head that can increase water pressure; a brushless motor, which includes a stator assembly installed in the installation cavity and a rotor assembly installed in the pumping chamber; the lower end of the rotor assembly has an impeller; a sand-proof cover, which is detachably installed at the lower end of the motor frame and covers the impeller cover; a filter element is provided between the sand-proof cover and the impeller cover; the lower end of the impeller cover is provided with a water inlet that communicates with the pumping chamber and the inner cavity of the sand-proof cover; and a plurality of spaced-apart water-drawing holes are provided on the periphery of the lower end of the sand-proof cover.

[0009] Furthermore, in the above technical solution, the spray holes of the pressurized shower head are funnel-shaped, with the inner part being larger than the outer part.

[0010] Furthermore, in the above technical solution, the water spray holes are multiple, arranged in three spaced rings, and distributed in the middle of the water spray surface of the pressurized shower head.

[0011] Furthermore, in the above technical solution, a PCB board is provided inside the mounting cavity, and a power cord is fixed to the outer shell by ultrasonic welding. One end of the power cord extends into the mounting cavity and is welded to the PCB board for conduction, and the other end of the power cord is connected to an adapter.

[0012] Furthermore, in the above technical solution, the mounting cavity is also filled with epoxy resin, which encapsulates one end of the power cord that extends into the mounting cavity, the stator assembly, and the PCB board.

[0013] Furthermore, in the above technical solution, the rotor assembly includes a rotating frame, a magnet fixed to the outside of the rotating frame, an impeller disposed at the lower end of the rotating frame, a bearing fixed at the center of the rotating frame, and a ceramic shaft disposed in the center hole of the bearing. The upper end of the ceramic shaft is fixedly connected to a first connecting protrusion inside the housing, and the lower end of the ceramic shaft is fixedly connected to a second connecting protrusion inside the impeller cover. A first ceramic ring gasket is also fitted onto the upper end of the ceramic shaft, positioned between the upper end of the inner circle of the bearing and the lower end of the first connecting protrusion. A second ceramic ring gasket is also fitted onto the lower end of the ceramic shaft, positioned between the lower end of the inner circle of the bearing and the upper end of the second connecting protrusion.

[0014] Furthermore, in the above technical solution, the lower end of the outer shell has a cylindrical body that protrudes upwards, which separates the mounting cavity and the pumping cavity; the stator assembly is sleeved and fixed to the outside of the cylindrical body; the magnets on the upper part of the rotating frame and the outside of the rotating frame are all located inside the cylindrical body, and the coil portion of the stator assembly is distributed around the magnets.

[0015] Furthermore, in the above technical solution, the lower end of the sand-proof cover is provided with several suction cups for adsorption and fixation with the outside environment to make the outer shell stand upright.

[0016] Furthermore, in the above technical solution, the filter element is a ring-shaped filter cotton that blocks all the water-drawing holes, and a limiting plate is also provided inside the sand-proof cover. The limiting plate abuts against the inner side of the filter cotton, so that a water cavity is formed inside the filter cotton, and the water inlet is located at the upper part of the water cavity.

[0017] Furthermore, in the above technical solution, the lower end of the water pipe is assembled with the water outlet pipe through a first quick connector, and the upper end of the water pipe is assembled with the booster shower head through a second quick connector.

[0018] After adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art: This utility model, when used with a water basin, enables water recycling, avoiding water waste and saving water resources; This utility model does not require an internal water tank, making its overall size relatively small, easy to carry and use; This utility model uses a pressurized shower head to spray water, resulting in a large and dense water flow that can quickly wet a pet's fur; This utility model uses a brushless motor, which has a longer service life and lower power consumption than ordinary brushed motors; This utility model is equipped with a sand-filtering cover and a filter element at the lower end, which can effectively filter sand and other foreign objects, ensuring water cleanliness and preventing sand and other foreign objects from entering the impeller and causing damage. Furthermore, the water inlet is located on the lower periphery of the sand-filtering cover, enabling ultra-low water level intake to meet different usage requirements. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present invention;

[0020] Figure 2 This is a perspective view of the present invention from another angle;

[0021] Figure 3 This is an exploded view of this utility model;

[0022] Figure 4 This is a cross-sectional view of the present invention; Detailed Implementation

[0023] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0024] SeeFigures 1-4 As shown, a brushless motor driven pet bathing machine is characterized by comprising: a shell 1, a motor frame 2, an impeller cover 3, a water pipe 4, a pressure-boosting shower head 5, a brushless motor 6, and a sand-proof cover 7.

[0025] The specific assembly structure is as follows: the motor frame 2 is installed inside the outer casing 1, forming an installation cavity 10 between it and the outer casing 1; the impeller cover 3 is installed at the lower end of the motor frame 2, forming a water pumping cavity 30 isolated from the installation cavity 10; the motor frame 2 is formed with a water outlet pipe 21 that communicates with the water pumping cavity 30 and extends upwards out of the upper end of the outer casing 1; the water outlet pipe 21 is connected to a water pipe 4, and the water pipe 4 is connected to a pressure-boosting shower head 5 that can increase water pressure; the brushless motor 6 includes components installed in the outer casing 1. The stator assembly 61 is installed in the cavity 10 and the rotor assembly 62 is installed in the pump water cavity 30. The rotor assembly 62 has an impeller 63 at its lower end. The sand-proof cover 7 is detachably installed at the lower end of the motor frame 2 and covers the impeller cover 3. A filter element 71 is provided between the sand-proof cover 7 and the impeller cover 3. The lower end of the impeller cover 3 is provided with an inlet 31 that connects the pump water cavity 30 and the inner cavity of the sand-proof cover 7. The lower periphery of the sand-proof cover 7 is provided with a plurality of spaced water-drawing fine holes 72.

[0026] In use, this invention is placed upright in a water basin. The sand-proof cover 7 is in contact with the bottom surface of the basin's inner cavity, and the water-drawing holes 72 of the sand-proof cover 7 are all submerged in the water. The water enters through the water-drawing holes 72 of the sand-proof cover 7, is filtered by the filter element 71, and then enters the pump water chamber 30 through the water inlet 31 of the impeller cover 3. The brushless motor 6 is powered on, and the rotor assembly 62 drives the impeller 63 to rotate in the pump water chamber 30, drawing the filtered water to the outlet pipe 21. After passing through the water inlet pipe 4, the water is sprayed out from the booster shower head 5 to bathe pets. At the same time, the sprayed water flows directly back into the basin, so that it will be drawn back into the basin and sprayed out from the booster shower head 5 later, thus realizing the recycling of water, avoiding water waste, and saving water resources. In other words, this utility model, when used with a water basin, enables water recycling, avoiding water waste and conserving water resources. The utility model eliminates the need for an internal water tank, resulting in a relatively small overall size, making it easy to carry and use. The utility model uses a pressurized shower head 5 to spray water, creating a large and dense water flow that quickly wets a pet's fur. The utility model employs a brushless motor, which has a longer lifespan and lower power consumption than ordinary brushed motors. The lower end of the utility model features a sand-filtering cover 7 and a filter element 71, which effectively filters sand and other foreign objects, ensuring water cleanliness and preventing sand and other foreign objects from entering the impeller 63 and causing damage. The water inlet 31 is located on the lower periphery of the sand-filtering cover 7, enabling ultra-low water level intake to meet various usage requirements.

[0027] The following is a detailed explanation of the pressure boosting structure of the pressure boosting shower head 5.

[0028] The water spray holes 51 of the pressurized shower head 5 are funnel-shaped, with a larger inlet and a smaller outlet. Water passing through these holes increases pressure. Specifically, the diameter of the water spray holes 51 is designed to be 0.8mm to ensure sufficient water output. Furthermore, the back of the water spray holes 51 is chamfered to facilitate smoother water flow, thus forming the funnel-shaped design.

[0029] The spray holes 51 are multiple in number, arranged in three spaced rings, and distributed in the middle of the spray surface of the pressurized shower head 5, which ensures concentrated water pressure and uniform water output.

[0030] The brushless motor is driven by a 12V DC power supply, making it extremely safe and reliable to use. The brushless motor is powered by an external AC power source via a power supply line 11 and an adapter 12. Specifically, a PCB board 101 is installed inside the mounting cavity 10. The outer shell 1 is ultrasonically welded to the power cable 11, achieving a seal and improving waterproofing. One end of the power cable 11 extends into the mounting cavity 10 and is soldered to the PCB board 101 for conductivity. The other end of the power cable 11 is connected to the adapter 12.

[0031] The mounting cavity 10 is also filled with epoxy resin, which wraps the end of the power cord 11 that extends into the mounting cavity 10, the stator assembly 61, and the PCB board 101. This greatly improves the waterproof effect. In other words, all electrical components in this invention are sealed and wrapped with epoxy resin, which not only improves the stability of the assembly structure but also greatly improves the waterproof and insulation performance, achieving an IPX8 waterproof and insulation rating.

[0032] The lower end of the water pipe 4 is connected to the water outlet pipe 21 via a first quick connector 41, and the upper end of the water pipe 4 is connected to the booster shower head 5 via a second quick connector 42. This allows for quick assembly and disassembly, making it extremely convenient to use.

[0033] The rotor assembly 62 includes a rotating frame 621, a magnet 622 fixed to the outside of the rotating frame 621, an impeller 63 disposed at the lower end of the rotating frame 621, a bearing 623 fixed at the center of the rotating frame 621, and a ceramic shaft 624 disposed in the central hole of the bearing 623. The upper end of the ceramic shaft 624 is fixedly connected to a first connecting protrusion 13 inside the outer casing 1, and the lower end of the ceramic shaft 624 is fixedly connected to a second connecting protrusion 32 inside the impeller cover 3. The upper end of the ceramic shaft 624 is also fitted with a first ceramic ring washer 625, which is placed between the upper end of the inner circle of the bearing 623 and the lower end of the first connecting protrusion 13. The lower end of the ceramic shaft 624 is also fitted with a second ceramic ring washer 626, which is placed between the lower end of the inner circle of the bearing 623 and the upper end of the second connecting protrusion 32. In other words, the impeller 63 is driven by a brushless motor, which, in conjunction with the ceramic shaft 624 and the first ceramic ring washer 625 and the second ceramic ring washer 626, achieves low-noise operation and a longer service life. The ceramic shaft 624 has a smooth surface, effectively reducing wear and extending its service life. The first ceramic ring washer 625 and the second ceramic ring washer 626 are mounted at both ends of the ceramic shaft 624. The first ceramic ring washer 625 is positioned between the upper end of the inner circle of the bearing 623 and the lower end of the first connecting protrusion 13, and the second ceramic ring washer 626 is positioned between the lower end of the inner circle of the bearing 623 and the upper end of the second connecting protrusion 32. This prevents the rotor assembly from rubbing against the plastic parts such as the outer casing 1 and the impeller cover 3 during rotation, thereby significantly reducing operating noise.

[0034] The lower end of the outer casing 1 has a cylindrical body 14 protruding upwards, which separates the mounting cavity 10 and the pumping cavity 30. The stator assembly 61 is sleeved and fixed to the outside of the cylindrical body 14. The magnets 622 on the upper part of the rotating frame 621 and the outside of the rotating frame 621 are all located inside the cylindrical body 14, and the coil part of the stator assembly 61 is distributed around the magnets 622. Its assembly structure is simple and stable to install, and it can effectively isolate the rotor assembly 62 and the stator assembly 61, making it safer and more reliable to use and ensuring the service life of the product.

[0035] The lower end of the sand-proof cover 7 is provided with several suction cups 73 for adsorption and fixation to the outside environment so that the outer shell 1 stands upright. That is, the sand-proof cover 7 can be adsorbed and fixed to the bottom surface of the inner cavity of the water basin through the suction cups 73, so that the present invention stands more stably in the water basin, which can effectively prevent the phenomenon of falling over and ensure the use of the present invention.

[0036] The filter element 71 is a ring-shaped filter cotton that blocks all the water-drawing holes 72. The sand-proof cover 7 is also provided with a limiting piece 74, which abuts against the inner side of the filter cotton to form a water cavity inside the filter cotton. The water inlet 31 is located at the upper part of the water cavity, which can better filter water and allow water to enter.

[0037] In summary, this utility model, when used with a water basin, enables water recycling, avoiding water waste and conserving water resources. The absence of an internal water tank makes the overall size of this utility model relatively small, facilitating portability and use. The pressurized showerhead 5 sprays water in a large and dense stream, quickly wetting a pet's fur. The brushless motor has a longer lifespan and lower power consumption than conventional brushed motors. The lower part of the utility model features a sand-filtering cover 7 and a filter element 71, which effectively filters sand and other impurities, ensuring water cleanliness and preventing sand and other impurities from entering the impeller 63 and causing damage. The water inlet 31 is located on the lower periphery of the sand-filtering cover 7, allowing for ultra-low water level intake to meet various usage requirements.

[0038] Of course, the above description is only a specific embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model should be included in the scope of the claims of the present utility model.

Claims

1. A brushless motor-driven pet bathing machine, characterized in that: It includes: Outer shell (1); The motor frame (2) is installed inside the housing (1) and forms a mounting cavity (10) between it and the housing (1). Impeller cover (3), which is installed at the lower end of motor frame (2) and forms a pump water chamber (30) isolated from the mounting cavity (10) with the lower end of motor frame (2). The motor frame (2) is formed with a water outlet pipe (21) that communicates with the pump water chamber (30) and extends upward out of the upper end of the outer shell (1). The water outlet pipe (21) is connected to a water pipe (4). The water pipe (4) is connected to a pressure boosting shower head (5) that can increase water pressure. The brushless motor (6) includes a stator assembly (61) installed in the mounting cavity (10) and a rotor assembly (62) installed in the pump chamber (30), the rotor assembly (62) having an impeller (63) at its lower end. A sand-proof cover (7) is detachably installed at the lower end of the motor frame (2) and covers the impeller cover (3). A filter element (71) is provided between the sand-proof cover (7) and the impeller cover (3). The lower end of the impeller cover (3) is provided with an inlet (31) that connects the pump water chamber (30) and the inner cavity of the sand-proof cover (7). The lower periphery of the sand-proof cover (7) is provided with a plurality of spaced water-drawing holes (72).

2. The brushless motor-driven pet bathing machine according to claim 1, characterized in that: The spray holes (51) of the pressurized shower head (5) are funnel-shaped, with the inner part being larger than the outer part.

3. The brushless motor-driven pet bathing machine according to claim 2, characterized in that: The spray holes (51) are multiple in number, arranged in three spaced rings, and located in the middle of the spray surface of the pressurized shower head (5).

4. A brushless motor-driven pet bathing machine according to claim 1, characterized in that: The mounting cavity (10) is provided with a PCB board (101). The outer shell (1) is fixed with a power cord (11) by ultrasonic welding. One end of the power cord (11) extends into the mounting cavity (10) and is welded to the PCB board (101) for conduction. The other end of the power cord (11) is connected to an adapter (12).

5. A brushless motor-driven pet bathing machine according to claim 4, characterized in that: The mounting cavity (10) is also filled with epoxy resin, which wraps one end of the power cord (11) that extends into the mounting cavity (10), the stator assembly (61) and the PCB board (101).

6. A brushless motor-driven pet bathing machine according to any one of claims 1-5, characterized in that: The rotor assembly (62) includes a rotating frame (621), a magnet (622) fixed to the outside of the rotating frame (621), an impeller (63) disposed at the lower end of the rotating frame (621), a bearing (623) passing through and fixed at the center of the rotating frame (621), and a ceramic shaft (624) passing through the central hole of the bearing (623). The upper end of the ceramic shaft (624) is fixedly connected to the first connecting protrusion (13) inside the housing (1), and the lower end of the ceramic shaft (624) is connected to... The second connecting protrusion (32) inside the impeller cover (3) is fixedly connected; wherein, the upper end of the ceramic shaft (624) is also fitted with a first ceramic ring washer (625), which is placed between the upper end of the inner circle of the bearing (623) and the lower end of the first connecting protrusion (13), and the lower end of the ceramic shaft (624) is also fitted with a second ceramic ring washer (626), which is placed between the lower end of the inner circle of the bearing (623) and the upper end of the second connecting protrusion (32).

7. A brushless motor-driven pet bathing machine according to claim 6, characterized in that: The lower end of the outer shell (1) has a cylindrical body (14) that protrudes upwards, which separates the mounting cavity (10) and the pumping cavity (30); the stator assembly (61) is sleeved and fixed to the outside of the cylindrical body (14); the magnets (622) on the upper part of the rotating frame (621) and the outside of the rotating frame (621) are all located inside the cylindrical body (14), and the coil portion of the stator assembly (61) is distributed around the magnets (622).

8. A brushless motor-driven pet bathing machine according to any one of claims 1-5, characterized in that: The lower end of the sand-proof cover (7) is provided with several suction cups (73) for adsorption and fixation with the outside to make the outer shell (1) stand upright.

9. A brushless motor-driven pet bathing machine according to claim 8, characterized in that: The filter element (71) is a ring-shaped filter cotton that blocks all the water-drawing holes (72). The sand-proof cover (7) is also provided with a limiting piece (74), which abuts against the inner side of the filter cotton to form a water cavity inside the filter cotton. The water inlet (31) is located at the upper part of the water cavity.

10. A brushless motor-driven pet bathing machine according to claim 8, characterized in that: The lower end of the water pipe (4) is connected to the water outlet pipe (21) via a first quick connector (41), and the upper end of the water pipe (4) is connected to the booster shower head (5) via a second quick connector (42).

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