Intelligent dishwasher drain pump with impurity filtration

Abstract

The utility model discloses a kind of intelligent dish-washing machine drainage pumps with impurity filtration, belong to drainage pump technical field, including pump body, the top of the pump body is fixedly connected with liquid inlet pipe, the side surface of the pump body is fixedly connected with liquid outlet pipe, the inside of the liquid inlet pipe is provided with filter assembly, the filter assembly includes support ring on the threaded connection of liquid inlet pipe;The utility model, support ring and liquid inlet pipe adopt independent accessory design, cooperate the staged filtration of large impurities, filter screen to small impurities, overall interception of different particle size impurities in waste liquid is realized, avoid the formation of jam in pump body interior, improve the safety of pump body;The rotation stirring function of impeller two effectively prevents filter screen blockage, guarantees the smoothness of waste liquid flow, prolongs the service life of pump body, while independent support ring structure is convenient for staff to disassemble and clean internal impurities later, reduce maintenance difficulty.

Description

Technical Field

[0001] This utility model belongs to the field of drainage pump technology, specifically relating to an intelligent dishwasher drainage pump with impurity filtration. Background Technology

[0002] Dishwashers are efficient kitchen cleaning helpers, easily freeing up your hands. With high-temperature, high-pressure water jets and special detergents, they can quickly rinse away grease and food residue from dishes, thoroughly removing even stubborn stains, with cleaning power far exceeding that of hand washing.

[0003] The drain pump is the core drainage component of the dishwasher, serving as its "sewage treatment hub" and directly determining the dishwasher's operating efficiency and cleaning effect. After the dishwasher completes the washing and rinsing processes, it produces wastewater containing oil and food residue. At this time, the drain pump starts, using the rotation of its internal impeller to generate suction, quickly drawing the wastewater out of the inner tank and discharging it into the household sewer system, preventing the residue from breeding bacteria.

[0004] Although existing drainage pumps are equipped with filtration systems, they rely solely on a single filter to intercept impurities, failing to classify impurities of different sizes. This results in fine impurities easily penetrating the filter and entering the pump body, while larger impurities directly obstruct the flow of waste liquid. Over long-term use, the accumulation of impurities and obstructed flow combine to not only easily cause drainage pump blockage but also accelerate component wear and significantly shorten its service life. Utility Model Content

[0005] The purpose of this invention is to provide a smart dishwasher drain pump with impurity filtration to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a smart dishwasher drain pump with impurity filtration, comprising a pump body, an inlet pipe fixedly connected to the top of the pump body, a drain pipe fixedly connected to the side surface of the pump body, a filter assembly disposed inside the inlet pipe, the filter assembly comprising a support ring threadedly connected to the inlet pipe, a filter chamber formed inside the support ring, filter holes formed on the inner wall of the filter chamber, a filter screen fixedly connected inside the filter holes, a support shaft rotatably connected to the center of the filter chamber, an impeller II fixedly connected to the side surface of the support shaft, and a filter grid installed directly above the impeller II and inside the filter chamber.

[0007] In a preferred embodiment, the top inner wall of the filter chamber is provided with a placement groove, the inner wall of the placement groove is provided with a set of symmetrically distributed positioning grooves, the side of the filter grid is fixedly connected to a rotating shaft, and the rotating shaft is rotatably connected inside one of the positioning grooves, and the side of the filter grid away from the rotating shaft is fixedly connected to a positioning block, and the positioning block is adapted to another positioning groove.

[0008] In a preferred embodiment, the side surface of the top of the inlet pipe is provided with threads, and the inlet pipe is threadedly connected to the support ring.

[0009] In a preferred embodiment, a support frame is fixedly connected to the bottom of the pump body, a support leg is fixedly connected to the bottom of the support frame, a rubber pad is fixedly connected to the bottom of the support leg, the support leg is L-shaped, and a threaded hole is opened inside the lateral end of the support leg.

[0010] In a preferred embodiment, the pump body includes a housing, the interior of which has a flow cavity, and the inner wall of the flow cavity has a water outlet.

[0011] In a preferred embodiment, a drive shaft is rotatably connected to the center of the flow cavity, an impeller is fixedly connected to the drive shaft, and a rotary motor is fixedly installed at the bottom of the housing by bolts. The drive end of the rotary motor passes through the housing and is fixedly connected to the drive shaft.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This utility model features an independent component design for the support ring and the inlet pipe. Combined with a filter grid for large impurities and a filter screen for small impurities, it achieves comprehensive interception of impurities of different particle sizes in the waste liquid, preventing blockages inside the pump body and improving pump safety. The rotating agitation function of the impeller effectively prevents filter screen blockage, ensuring smooth waste liquid flow and extending the pump's service life. Simultaneously, the independent support ring structure facilitates future disassembly and cleaning of internal impurities, reducing maintenance difficulty.

[0013] The design of this utility model improves the overall aesthetics of the filter assembly by incorporating a placement groove. The cooperation between the positioning groove and the positioning block ensures the installation stability of the filter screen during operation and prevents the filter screen from shifting due to waste liquid impact. The rotating connection design of the shaft allows the filter screen to be opened easily. The positioning block not only serves as a limit but also provides a convenient operating handle, greatly simplifying the cleaning process of large impurities inside the filter chamber and improving maintenance efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 2 This is a schematic diagram of the overall three-dimensional structure of this utility model; Figure 3 This is a schematic diagram of the overall exploded three-dimensional structure of this utility model; Figure 4 This is a three-dimensional cross-sectional structural diagram of the pump body component of this utility model.

[0015] In the diagram: 1. Pump body; 2. Inlet pipe; 3. Drain pipe; 4. Filter assembly; 5. Thread; 6. Placement slot; 7. Positioning slot; 8. Rotating shaft; 9. Positioning block; 10. Support frame; 11. Support leg; 12. Rubber pad; 13. Threaded hole; 101. Housing; 102. Flow chamber; 103. Drive shaft; 104. Impeller one; 105. Outlet; 106. Rotary motor; 401. Support ring; 402. Filter chamber; 403. Filter holes; 404. Filter screen; 405. Support shaft; 406. Impeller two; 407. Filter grid. Detailed Implementation

[0016] The present invention will be further described below with reference to the embodiments.

[0017] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0018] Please see Figures 1 to 4 This utility model provides a smart dishwasher drain pump with impurity filtration, including a pump body 1. An inlet pipe 2 is fixedly connected to the top of the pump body 1, which draws liquid from the dishwasher tank and discharges it through a drain pipe 3. A drain pipe 3 is fixedly connected to the side surface of the pump body 1. A filter assembly 4 is installed inside the inlet pipe 2. The filter assembly 4 includes a support ring 401 threadedly connected to the inlet pipe 2. The support ring 401 is an integral structure and is a separate component from the inlet pipe 2, facilitating the cleaning of impurities. A filter chamber 402 is formed inside the support ring 401. The inner wall of the filter chamber 402 has filter holes 403, and a filter screen 404 is fixedly connected inside the filter holes 403. The filter screen 404 is used to filter fine impurities in the waste liquid. A support shaft 405 is rotatably connected to the middle of the filter chamber 402. An impeller 406 is fixedly connected to the side surface of the support shaft 405. The impeller 406 can rotate during the waste liquid filtration process, thereby agitating the impurities inside the filter chamber 402 and preventing impurities from clogging the filter screen 404. A filter grid 407 is installed directly above the impeller 406 and inside the filter chamber 402. The filter grid 407 can filter larger impurities in the waste liquid.

[0019] When pump 1 starts, waste liquid in the dishwasher tank is drawn in through inlet pipe 2. It first flows through the filter chamber 402 of the support ring 401 in the filter assembly 4. Larger impurities are intercepted by the filter grid 407, and smaller impurities are blocked by the filter screen 404 within the filter holes 403 on the inner wall of the filter chamber 402. Under the impact force generated by the flow of waste liquid, the support shaft 405 in the middle of the filter chamber 402 drives the impeller 406 to rotate. During the rotation of the impeller 406, the accumulated impurities in the filter chamber 402 are agitated, preventing impurities from adhering to the surface of the filter screen 404 and filter grid 407. The filtered waste liquid... The waste liquid enters the pump body 1 and is finally discharged through the drain pipe 3. In this utility model, the support ring 401 and the inlet pipe 2 are designed as independent accessories. Together with the filter grid 407 for large impurities and the filter screen 404 for small impurities, the waste liquid is filtered in stages, which achieves comprehensive interception of impurities of different particle sizes in the waste liquid, avoids blockage inside the pump body 1, and improves the safety of the pump body 1. The rotating and stirring function of the impeller 406 effectively prevents the filter screen 404 from clogging, ensures the smooth flow of waste liquid, and extends the service life of the pump body 1. At the same time, the independent support ring 401 structure makes it easy for staff to disassemble and clean internal impurities in the future, reducing the difficulty of maintenance.

[0020] Specifically, such as Figure 1 and Figure 3 As shown, the top inner wall of the filter chamber 402 is provided with a placement groove 6, which is used to accommodate the filter grid 407 and improve the aesthetics. The inner wall of the placement groove 6 is provided with a set of symmetrically distributed positioning grooves 7. The side of the filter grid 407 is fixedly connected to a rotating shaft 8, and the rotating shaft 8 is rotatably connected inside one of the positioning grooves 7. The filter grid 407 can be rotated and opened by the rotating shaft 8, which facilitates the cleaning of impurities inside the filter chamber 402 by the staff. The side of the filter grid 407 away from the rotating shaft 8 is fixedly connected to a positioning block 9, and the positioning block 9 is adapted to another positioning groove 7. The positioning block 9 is inserted into the positioning groove 7 to limit the filter grid 407. On the other hand, the staff can hold the positioning block 9 to drive the filter grid 407 to rotate around the rotating shaft 8.

[0021] The filter grid 407 is rotatably installed in one of the positioning grooves 7 on the top inner wall of the filter chamber 402 via a rotating shaft 8 fixedly connected to the side. The placement groove 6 provides space for the filter grid 407, keeping the filter grid 407 flat with the top of the filter chamber 402. When the filter grid 407 needs to be closed, the positioning block 9 on the side of the filter grid 407 away from the rotating shaft 8 is inserted into the other positioning groove 7. The positioning block 9 and the positioning groove 7 are matched to limit and fix the filter grid 407. When cleaning impurities, the operator can hold the positioning block 9 to rotate the filter grid 407 around the rotating shaft 8 to open it. In this utility model, the setting of the placement groove 6 improves the overall aesthetics of the filter assembly 4, and the cooperation between the positioning groove 7 and the positioning block 9 ensures the installation stability of the filter grid 407 during operation, avoiding displacement of the filter grid 407 due to the impact of waste liquid. The rotating connection design of the rotating shaft 8 makes it easy to open the filter grid 407. The positioning block 9 not only serves as a limit but also provides a convenient operating handle, greatly simplifying the cleaning process of large impurities inside the filter chamber 402 and improving maintenance efficiency.

[0022] Specifically, such as Figure 2 and Figure 3 As shown, the side surface of the top of the liquid inlet pipe 2 is provided with a thread 5. The liquid inlet pipe 2 is threadedly connected to the support ring 401 through the thread 5. The threaded connection between the support ring 401 and the liquid inlet pipe 2 ensures the stability and tightness of the connection between the two. On the other hand, it facilitates the disassembly of the support ring 401 by the staff, thereby facilitating the cleaning of the inside of the filter chamber 402.

[0023] The thread 5 on the top side surface of the inlet pipe 2 meshes with the internal thread of the support ring 401. By rotating the support ring 401, the thread 5 is gradually engaged to achieve a fixed connection between the inlet pipe 2 and the support ring 401. During the engagement process, the gap between the two gradually decreases to form a tight seal. When it is necessary to clean the filter chamber 402, the support ring 401 is rotated in the opposite direction to disengage the thread 5, and the support ring 401 can be removed from the inlet pipe 2.

[0024] Specifically, such as Figure 3 and Figure 4 As shown, a support frame 10 is fixedly connected to the bottom of the pump body 1, and a support leg 11 is fixedly connected to the bottom of the support frame 10. The support leg 11, together with the support frame 10, can effectively support the pump body 1. A rubber pad 12 is fixedly connected to the bottom of the support leg 11. The installation of the rubber pad 12 increases the friction with the surface, thereby improving the stability and safety of the installation. The support leg 11 is L-shaped, and a threaded hole 13 is opened inside the horizontal end of the support leg 11. The operator can use a bolt to pass through the threaded hole 13 and then install the device in a suitable position on the dishwasher.

[0025] The support frame 10 fixedly connected to the bottom of the pump body 1 provides an installation base for the support leg 11. The L-shaped support leg 11 is engaged with bolts through the threaded hole 13 inside the horizontal end. The operator inserts the bolt through the threaded hole 13 and screws it into the threaded hole of the preset installation position of the dishwasher to achieve the fixed installation of the pump body 1. The rubber pad 12 at the bottom of the support leg 11 is in direct contact with the installation surface. It fits the installation surface through the elastic deformation of the rubber material, and at the same time increases the contact friction with the installation surface.

[0026] Specifically, such as Figure 4 As shown, the pump body 1 includes a housing 101, a flow chamber 102 is provided inside the housing 101, and an outlet 105 is provided on the inner wall of the flow chamber 102. The outlet 105 is connected to the drain pipe 3. A drive shaft 103 is rotatably connected to the middle of the flow chamber 102. An impeller 104 is fixedly connected to the drive shaft 103. A rotary motor 106 is fixedly installed at the bottom of the housing 101 by bolts. The drive end of the rotary motor 106 passes through the housing 101 and is fixedly connected to the drive shaft 103.

[0027] The flow chamber 102 inside the housing 101 of the pump body 1 provides a flow channel for waste liquid. After the rotary motor 106, which is fixed to the bottom of the housing 101 by bolts, is started, its transmission end passes through the housing 101 and drives the transmission shaft 103 in the middle of the flow chamber 102 to rotate. The transmission shaft 103 synchronously drives the impeller 104 fixedly connected to it to rotate at high speed in the flow chamber 102. The rotation of the impeller 104 generates negative pressure suction, which draws the waste liquid filtered by the inlet pipe 2 into the flow chamber 102. Finally, the waste liquid flows into the drain pipe 3 through the outlet 105 on the inner wall of the flow chamber 102 and is discharged.

[0028] Working principle and usage process of this utility model: The staff first used bolts to pass through the threaded holes 13 at the lateral end of the support leg 11, and then fixed the pump body 1 to the support leg 11 at a suitable position in the dishwasher via the bottom support frame 10. The rubber pad 12 at the bottom of the support leg 11 increases the friction with the mounting surface to ensure installation stability. After the pump body 1 is started, the rotary motor 106 at the bottom of the housing 101 drives the drive shaft 103 and impeller 104 in the flow chamber 102 to rotate at high speed, generating negative pressure suction. The waste liquid in the dishwasher is sucked in through the inlet pipe 2. The waste liquid first enters the filter chamber 402 of the support ring 401. Larger impurities are first intercepted by the filter grid 407 in the placement tank 6. Then, small impurities are blocked by the filter screen 404 in the filter hole 403 on the inner wall of the filter chamber 402. At the same time, the impact force generated by the flow of waste liquid drives the support shaft 405 and impeller 2 406 in the middle of the filter chamber 402 to rotate, stirring up the accumulated impurities to prevent the filter screen 404 and filter grid 407 from clogging. The filtered waste liquid enters the flow chamber 102 of the housing 101 and is finally discharged through the outlet 105 connected to the drain pipe 3 on the inner wall of the flow chamber 102. When it is necessary to clean impurities, the staff can rotate the support ring 401 in the opposite direction to disengage the thread 5 at the top of the inlet pipe 2 to remove the support ring 401, or hold the positioning block 9 to drive the filter screen 407 to rotate around the shaft 8 to open it, so as to easily clean the impurities inside the filter chamber 402. The whole process ensures smooth flow of waste liquid through staged filtration and anti-clogging design, and the installation is reliable and the maintenance is simple, which effectively reduces the difficulty of use and maintenance.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A smart dishwasher drain pump with impurity filtration, comprising a pump body (1), characterized in that: The top of the pump body (1) is fixedly connected to the inlet pipe (2), and the side surface of the pump body (1) is fixedly connected to the outlet pipe (3). The inlet pipe (2) is provided with a filter assembly (4). The filter assembly (4) includes a support ring (401) threadedly connected to the inlet pipe (2). The support ring (401) has a filter chamber (402) inside. The inner wall of the filter chamber (402) has filter holes (403). The filter holes (403) are fixedly connected to the inside of the filter screen (404). The middle part of the filter chamber (402) is rotatably connected to the support shaft (405). The side surface of the support shaft (405) is fixedly connected to the impeller (406). The impeller (406) is directly above the filter chamber (402) and is located inside the filter chamber (402) with a filter grid (407).

2. The drain pump for an intelligent dishwasher with impurity filtration according to claim 1, characterized in that: The top inner wall of the filter chamber (402) is provided with a placement groove (6), and the inner wall of the placement groove (6) is provided with a set of symmetrically distributed positioning grooves (7). The side of the filter grid (407) is fixedly connected with a rotating shaft (8), and the rotating shaft (8) is rotatably connected inside one of the positioning grooves (7). The side of the filter grid (407) away from the rotating shaft (8) is fixedly connected with a positioning block (9), and the positioning block (9) is adapted to the other positioning groove (7).

3. The drain pump for an intelligent dishwasher with impurity filtration according to claim 1, characterized in that: The top side surface of the liquid inlet pipe (2) is provided with a thread (5), and the liquid inlet pipe (2) is threadedly connected to the support ring (401) through the thread (5).

4. The drain pump for an intelligent dishwasher with impurity filtration according to claim 1, characterized in that: The bottom of the pump body (1) is fixedly connected to a support frame (10), the bottom of the support frame (10) is fixedly connected to a support leg (11), the bottom of the support leg (11) is fixedly connected to a rubber pad (12), the support leg (11) is L-shaped, and a threaded hole (13) is opened inside the lateral end of the support leg (11).

5. The drain pump for an intelligent dishwasher with impurity filtration according to claim 1, characterized in that: The pump body (1) includes a housing (101), and a flow cavity (102) is provided inside the housing (101). An outlet (105) is provided on the inner wall of the flow cavity (102).

6. The drain pump for an intelligent dishwasher with impurity filtration according to claim 5, characterized in that: A drive shaft (103) is rotatably connected to the middle of the flow cavity (102). An impeller (104) is fixedly connected to the drive shaft (103). A rotary motor (106) is fixedly installed at the bottom of the housing (101) by bolts. The drive end of the rotary motor (106) passes through the housing (101) and is fixedly connected to the drive shaft (103).

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