[0025] The present invention will be described in further detail below in conjunction with the embodiments of the drawings.
[0026] See Figure 1 ~ Figure 3 , A sink type washing machine, including a sink body 1 and an open water pump 2, the open water pump 2 includes a motor 21, an impeller 22 and a shell 23, wherein the motor 21 is located under the bottom of the sink body 1, and the impeller 22 and the shell The body 23 is located in the bottom of the tank body 1.
[0027] The bottom of the water tank body 1 is provided with an opening 11, the motor 21 is located below the opening 11 of the water tank body 1 and corresponds to the position of the opening 11, and its output shaft extends upwards into the water tank body 1 through the opening 11. The impeller 22 includes a chassis 221 adapted to the shape and size of the opening 11, a central shaft 222 and a plurality of blades 223. The chassis 221 is installed at the opening 11 to close the opening 11, thereby preventing the water in the water tank body 1 from flowing out of the water tank body 1. The central shaft 222 may be located in the center of the chassis 221 and connected to the output shaft of the motor 21, and the plurality of blades 223 are evenly distributed along the circumferential direction on the peripheral surface of the central shaft 222, forming a radial shape. Therefore, when the motor 21 is running, its output shaft can drive the central shaft 222 to rotate, thereby driving the blades 223 to rotate with the central shaft 222 to exert pressure on the water flow.
[0028] Rejoin Figure 4 with Figure 5 In the present invention, the housing 23 includes an accommodation cavity 231 and a water outlet part 232, the central shaft 222 and the blade 223 are placed in the accommodation cavity 231, and the water outlet part 232 is a spray arm. The shells 23 may be integrally formed or connected to each other. Preferably, in the present invention, the shells 23 are integrally formed. The top opening of the accommodating cavity 231 is formed as the water inlet 233 of the water pump, and the bottom opening of the accommodating cavity 231 is adapted to the bottom plate 221, and the bottom plate 221 closes the bottom end of the accommodating cavity 231. The water inlet 233 at the top of the accommodating cavity 231 is provided with a filter plate 24, and the filter plate 24 and the housing 23 are integrally formed for filtering the water entering the accommodating cavity 231 from the water inlet 233, and the water tank body 1 The internal dirt is isolated from the impeller 22 and the casing 23 to avoid clogging.
[0029] A water outlet 234 is formed on the side wall of the accommodating cavity 231 at a position below the filter plate 24, which communicates with the water outlet 232, so that the water entering from the water inlet 233 of the accommodating cavity 231 is pumped out to the water outlet 234 through the impeller 22 , Enter into the water outlet 232. That is, in the present invention, the water inlet 233 is formed above the impeller 22, and the water outlet 234 is formed on the side of the impeller 22.
[0030] The water outlet component 232 is formed by buckling the upper bottom shell 235 and the lower bottom shell 236. The space between the upper bottom shell 235 and the lower bottom shell 236 forms a branching channel 237, and there is at least one branching channel 237, which is preferred in the present invention , Including three distribution channels 237, the distribution channel 237 is H-shaped as a whole, in which the horizontal distribution channel 237 in the middle is adjacent to and communicated with the water outlet 234, and the vertical distribution channels 237 on both sides are connected to the horizontal distribution channels respectively. The channels 237 communicate with each other. Each branch channel 237 includes a first side wall 2371 and a second side wall 2372 opposite to each other. Thus, the place where the horizontal branch passage 237 communicates with the water outlet 234, and the place where the vertical branch passage 237 communicates with the horizontal branch passage 237 is a branch opening 2373 formed by opening on each first side wall 2371. A diversion structure 239 is formed on each second side wall 2372 opposite to the diversion port 2373. The diversion structure 239 is preferably a protrusion facing the diversion port 2373, and the protrusion is connected to the second side wall 2372 of the diversion channel 237. Smooth arc transition, so as to smoothly divert the water flow to both sides of the protrusion. As a result, the flow guiding structure 239 can smoothly divert the water flow entering the water outlet component 232 and reduce the pressure loss when the flow is divided, so that the water flow maintains sufficient pressure to be ejected from the water outlet component 232.
[0031] The top surface of the upper bottom shell 235 is provided with a plurality of water spray holes 238. The number, shape and size of the water spray holes 238 can be set as required, and the direction of the water spray holes 238 can also be different to form a better spray. effect. The water spray hole 238 communicates with the branch channel 237, and sprays the water pumped by the impeller 22 from the branch channel 237 to spray and clean the fruits and vegetables to be cleaned in the water tank body 1.
[0032] Since the water inlet of the open water pump 2 is located above the impeller 22 (upper water inlet), and the water outlet 234 is located on the side of the impeller 22, that is, the height of the water outlet 234 is approximately the same as the height of the blades 223, therefore, the impeller 22 does not need to be from the bottom When the water flow is drawn upward, the blade 223 only needs to adopt a relatively simple straight blade structure, which is not only simple in structure, but also greatly convenient for processing.
[0033] In order to prevent the water outlet component 232 from moving relative to the impeller 22, in the present invention, the water outlet component 232 (spray arm) is connected and fixed to the water tank body 1. Preferably, in order to facilitate the installation and disassembly of the water outlet component 232, the water outlet component 232 and the water tank body 1 adopt a detachable, preferably snap-fitting manner. At least one first snap buckle 12 is provided at the bottom of the sink body 1 around the opening 11, and a second snap buckle 25 is provided at the corresponding position of the water outlet part 232. The cooperation of the two snap-fit buckles 25 makes the water outlet component 232 and the bottom of the sink body 1 snap fit to complete the installation of the water outlet component 232, and at the same time facilitate the removal of the water outlet component 232 from the sink body 1 after disassembly.
[0034] When the open water pump 2 is working, the motor 21 drives the blade 223 to rotate, and the water enters the accommodating cavity 231 after passing through the filter plate 24. Under the action of the blade 223, it accelerates from the water outlet 234 into the shunt channel 237. See flow direction Figure 5 In the direction indicated by the straight arrow in the middle, water flows from the spray hole 238 into the water tank body 1 to clean the fruits and vegetables in the water tank body 1, which is convenient and clean, and there is no dead corner for cleaning.
