Waterway system of dishwasher

Abstract

Disclosed is a waterway system of a dishwasher, thereby improving the cleaning cleanliness of tableware. The waterway system includes a base and a liner. The liner is mounted on the base, has a frame-shaped structure with an opening at a front side, is internally provided upper, lower, side and small spray arms, and is provided with a cup at the bottom; the cup is detachably connected to the liner and mounted in the base, and is connected to a water-dividing valve which respectively communicates with the upper, lower, side and small spray arms; the upper and lower spray arms are distributed up and down; the small spray arm is located on a side surface of the lower spray arm; the upper, lower and small spray arms are rotatably connected relative to the liner; and the side spray arm is detachably connected to a side wall of the liner.

What is claimed is: 
     
         1 . A waterway system of a dishwasher, comprising a base and a liner, characterized in that the liner is mounted on the base; the liner has a frame-shaped structure with an opening at a front side; an upper spray arm, a lower spray arm, a side spray arm and a small spray arm are arranged in the liner; a cup is arranged at the bottom of the liner; the cup is detachably connected to the liner and located in the base; the cup is connected to a water-dividing valve; the water-dividing valve respectively communicates with the upper spray arm, the lower spray arm, the side spray arm and the small spray arm; the upper spray arm and the lower spray arm are distributed up and down; the small spray arm is located on a side surface of the lower spray arm; the upper spray arm, the lower spray arm and the small spray arm are rotatably connected relative to the liner; and the side spray arm is fixedly connected to a side wall of the liner. 
     
     
         2 . The waterway system of a dishwasher according to  claim 1 , characterized in that an upper bowl basket and a lower bowl basket are arranged in the liner; the upper bowl basket and the lower bowl basket are distributed in a height direction of the liner and are detachably connected to the liner; the upper spray arm is located between the upper bowl basket and the lower bowl basket and corresponds to the bottom of the upper bowl basket; the upper spray arm is located at the top of the lower bowl basket; and the lower spray arm is located at the bottom of the lower bowl basket. 
     
     
         3 . The waterway system of a dishwasher according to  claim 2 , characterized in that the side spray arm is located at a bottom edge of the liner and at the bottom of the lower bowl basket; one side of the side spray arm is detachably connected to the side wall of the liner; the corresponding other side of the side spray arm is provided with an inclined surface I corresponding to the lower bowl basket; and the inclined surface I is provided with a plurality of spray holes I distributed uniformly. 
     
     
         4 . The waterway system of a dishwasher according to  claim 2 , characterized in that the side spray arm is located between the upper bowl basket and the lower bowl basket; one side of the side spray arm is detachably connected to the side wall of the liner; the corresponding other side of the side spray arm is provided with an inclined surface I corresponding to the upper bowl basket; and the inclined surface I is provided with a plurality of spray holes I distributed uniformly. 
     
     
         5 . The waterway system of a dishwasher according to  claim 3 , characterized in that one side of the side spray arm detachably connected to the side wall of the liner is provided with an internal thread groove and a connecting hole; the internal thread groove is located at one end of the side spray arm; the connecting hole is located at the other end of the side spray arm and communicates with the interior of the side spray arm; the liner is provided with through holes respectively in one-to-one correspondence with the internal thread groove and the connecting hole; a fastening screw is arranged in the internal thread groove; a fastening washer and a sealing pad are sleeved on the fastening screw sequentially; the side spray arm is hermetically connected to the liner through the matching of the internal thread groove and the fastening screw; an adapter is arranged in the connecting hole; a seal ring I is sleeved at one end of the adapter, the one end of the adapter is hermetically connected to the connecting hole through the seal ring I, and an L-shape joint is arranged at the other end of the adapter; a seal ring II is arranged on the L-shaped joint; the L-shaped joint penetrates through the corresponding through hole and is hermetically connected to the adapter through the seal ring II; and the side spray arm communicates with the water-dividing valve sequentially through the adapter and the L-shaped joint. 
     
     
         6 . The waterway system of a dishwasher according to  claim 2 , characterized in that a water outlet channel is formed at one side of the cup, and the water-dividing valve is connected to the other side of the cup; the bottom edge of the liner gradually sinks towards a center thereof; a mounting groove is formed at the bottom center of the liner, and the mounting groove is located in the liner; a mounting hole matched with the cup is formed at the bottom of the mounting groove; a filter corresponding to the water outlet channel and a seal cover corresponding to the water-dividing valve are arranged in the mounting groove; and the filter and the seal cover are detachably connected to the mounting groove. 
     
     
         7 . The waterway system of a dishwasher according to  claim 6 , characterized in that a U-shaped water channel is formed in the liner, and the bottom of the U-shaped water channel is connected to a rear side wall of the liner; one side of the U-shaped water channel is located between the upper bowl basket and the lower bowl basket and is in a suspended state, and the other side of the U-shaped water channel is located at the bottom of the liner; the upper spray arm is horizontally rotatably connected to one side of an open end of the U-shaped water channel; the upper spray arm communicates with the water-dividing valve after sequentially passing through the U-shaped water channel and an area formed by the seal cover and the cup; a shaft pipe is arranged on the seal cover; one end of the shaft pipe is fixedly connected to the seal cover; the other side of the open end of the U-shaped water channel is connected to the seal cover through a side wall of the shaft pipe; the other side of the U-shaped water channel is located between the lower spray arm and the seal cover; the seal cover is located outside the open end of the U-shaped water channel; the upper spray arm and the lower spray arm are located in the open end of the U-shaped water channel; the center of the lower spray arm is hermetically inserted in the other end of the shaft pipe and is horizontally rotatably connected to the seal cover through the shaft pipe; the lower spray arm communicates with the water-dividing valve after sequentially passing through the shaft pipe and the area formed by the seal cover and the cup; a water-dividing channel is formed at one side of the U-shaped water channel located at the bottom of the liner; the water-dividing channel is located on a side surface of the U-shaped water channel; one end of the water-dividing channel is connected to and communicates with the U-shaped water channel; the small spray arm is located at the other end of the water-dividing channel; the center of the small spray arm is rotatably connected to the water-dividing channel; the small spray arm is located at an end part of the lower spray arm and located between the lower spray arm and the seal cover; the small spray arm communicates with the water-dividing valve after sequentially passing through the water-dividing channel, the U-shaped water channel and the area formed by the seal cover and the cup; and channels formed by the upper spray arm, the lower spray arm, the small spray arm and the side spray arm respectively communicating with the water-dividing valve are independent of each other. 
     
     
         8 . The waterway system of a dishwasher according to  claim 7 , characterized in that the small spray arm is in a radial shape formed by a plurality of supporting blocks extending from the inside to the outside; one end of each of the plurality of supporting blocks is converged to form the center of the small spray arm, and the other ends of the supporting blocks are provided with spray holes II; the spray holes II communicate with the center of the small spray arm through the interiors of the supporting blocks; an inclined edge is arranged at the edge of one side of each of the supporting blocks; the spray holes II are located at the joints of the edges and the tops of the supporting blocks; the water-dividing channel is located at the bottoms of the supporting blocks; each of the spray holes II is provided with a flow guide wall in a circumferential direction thereof; and one end of the flow guide wall is fixedly connected to the top of each of the supporting blocks, and the other end of the flow guide wall forms a diagonal plane and then is connected and fixed to the edge. 
     
     
         9 . The waterway system of a dishwasher according to  claim 3 , characterized in that a rectangular cavity is formed in the side spray arm; the spray holes I are located at the top of the rectangular cavity; the spray holes I communicate with the water-dividing valve through the rectangular cavity; a valve block is arranged in the rectangular cavity; the valve block completely covers the plurality of spray holes I and is hermetically and slidingly connected to a side wall of the rectangular cavity; an inflating cylinder is arranged at the bottom of the side spray arm, and the inflating cylinder is arranged horizontally; the inflating cylinder is hermetically connected to the side spray arm; a flow hole is formed at the bottom of the rectangular cavity; the rectangular cavity communicates with one end of the inflating cylinder through the flow hole; a seal valve is arranged in the inflating valve; a valve rod is arranged on the seal valve; one end of the valve rod is located in the inflating cylinder and fixedly connected to the seal valve, and the other end of the valve rod penetrates through the other end of the inflating cylinder and located outside the inflating cylinder; one end of the valve rod located outside the inflating cylinder is provided with a pull rod perpendicular thereto; one end of the pull rod is fixedly connected to the valve rod, and the other end of the pull rod is located at the top of the side spray arm; the pull rod is located between the side spray arm and the side wall of the liner; the seal valve is driven by the pull rod to be horizontally slidingly connected to the inflating cylinder; and the valve block is driven by the pull rod to be slidingly connected to the rectangular cavity up and down. 
     
     
         10 . The waterway system of a dishwasher according to  claim 9 , characterized in that the thickness of the valve block is gradually increased from the top to the bottom; one side of the valve block is provided with an inclined surface II, and the corresponding other side of the valve block completely covers the spray holes I; the inclined surface II is provided with a V-shaped guide groove; the V-shaped guide groove is located at the center of the valve block; an included angle formed by a top edge of the V-shaped guide groove and the inclined surface II is 90 degrees; a bottom edge of the V-shaped guide groove is arranged horizontally; a push plate in flush with the bottom edge of the V-shaped guide groove penetrates through one side of the rectangular cavity, and the spray holes I are located at the corresponding other side of the rectangular cavity; the push plate is hermetically and horizontally slidingly connected to one side of a rectangular hole; one end of the push plate is located in the V-shaped guide groove, and the other end of the push plate is located outside the rectangular cavity and fixedly connected to the pull rod; a stop block is arranged at the joint of the top edge of the V-shaped guide groove and the inclined surface II; the stop block is located in the V-shaped guide groove and fixedly connected to a side wall of the V-shaped guide groove; and a stop groove matched with the stop block is formed at one end of the push plate located at the V-shaped guide valve.