Dish washing machine with spraying arm capable of rotating stably

By setting a sealing mechanism and spray arm assembly on the spray arm, the problem of water overflow caused by non-sealing of the spray arm assembly is solved, and the stable rotation of the spray arm and water pressure stability are achieved, thus improving the cleaning effect of the dishwasher.

CN223886827UActive Publication Date: 2026-02-10GUANGDONG JINLI ELECTRIC APPLIANCE MFG CO LTD
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Patent Information

Application Number
CN202520009639.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-02
Publication Date
2026-02-10
Estimated Expiration
2035-01-02

AI Technical Summary

Technical Problem

The existing spray arms are not easy to seal during assembly, which causes water to overflow, affects the stability of water pressure, and makes it difficult to effectively clean tableware.

Method used

By setting up a sealing mechanism and spray arm assembly, a sealed connection between the water outlet pipe and the connecting pipe is ensured, reducing friction. Water pressure is used to drive the spray arm to rotate, thereby improving structural stability.

Benefits of technology

Stable rotation of the spray arm is achieved, reducing water spillage, improving cleaning effect and water pressure stability, and ensuring complete cleaning of tableware by the spray arm.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a dish washing machine with a spraying arm rotating stably, and relates to the technical field of kitchen appliances. The sealing device comprises a machine body, wherein a sealing mechanism is arranged on the machine body; the sealing mechanism comprises a water tank fixedly connected into the machine body, and the inner bottom wall of the water tank is fixedly connected with a water pump. By arranging the sealing mechanism, when the spraying arm assembly needs to be assembled, the glass door can be opened, the sealing plastic ring is arranged on the inner wall of the clamping groove in a sleeving mode, meanwhile, the second connecting ring is placed on the top face of the first connecting ring, and after the second connecting ring makes contact with the first connecting ring, the sealing plastic ring is fixed to the inner wall of the clamping groove. The first connecting ring and the second connecting ring can be fixed through a tool and a bolt, so that after a water pump is driven to pour water in a water tank into a water guide pipe, connection between a water outlet pipe and a connecting pipe is sealed, water is prevented from overflowing, it can be ensured that water pressure can drive a spraying arm assembly to rotate, and the spraying effect is improved. The stability of the whole structure is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of kitchen appliance technology, and in particular relates to a dishwasher with a stable spray arm rotation. Background Technology

[0002] A dishwasher is a cleaning device that automatically cleans tableware. It includes an inner tub, a spray arm located inside the inner tub, and a water supply pipe located outside the inner tub. The inner tub has a water inlet that connects to the water supply pipe, and the spray arm has a water outlet that connects to the water inlet. The spray arm is rotatably mounted on the inner tub. When the dishwasher is working, the spray arm rotates, and the washing water in the water supply pipe supplies water to the spray arm through the water inlet and water outlet. The water is then sprayed onto the tableware from the spray holes on the spray arm to wash away food residue and grease.

[0003] However, existing spray arms are not easy to seal during assembly, which causes water to overflow when the spray arm is in operation, thus affecting the water pressure and making the spray arm unstable when spraying water, making it difficult to clean the dishes completely. Utility Model Content

[0004] The purpose of this invention is to provide a dishwasher with a stable spray arm rotation. By incorporating a sealing mechanism, after the water pump pours water from the tank into the water pipe, the connection between the water outlet pipe and the connecting pipe is sealed to prevent water overflow. This also ensures that the water pressure can drive the spray arm assembly to rotate, improving the overall structural stability. This solves the problem that existing spray arms are difficult to seal during assembly, causing water to overflow during operation, which affects water pressure and makes the spray arm unstable, making it difficult to thoroughly clean the dishes.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a dishwasher with a stable spray arm rotation, including a body, on which a sealing mechanism is provided;

[0007] The sealing mechanism includes a water tank fixedly connected inside the machine body. A water pump is fixedly connected to the inner bottom wall of the water tank. A water guide pipe is fixedly connected to the output end of the water pump. A connecting ring 1 is fixedly connected to the outer wall of the water guide pipe. A water outlet pipe is connected to the top end of the water guide pipe and is fixedly connected to the water guide pipe. A connecting ring 2 is provided on the top surface of the connecting ring 1. A bolt is threaded between the connecting ring 2 and the connecting ring 1. A connecting pipe is connected to the top surface of the connecting ring 2 and is fixedly connected to the connecting ring 2. A groove is opened on the outer wall of the water outlet pipe. A sealing plastic ring is provided on the inner wall of the groove. The sealing plastic ring contacts the outer wall of the connecting pipe. A spray arm assembly is provided on the connecting pipe.

[0008] Furthermore, the spray arm assembly includes a water inlet pipe disposed inside the connecting pipe. A retaining ring is fixedly connected to the outer wall of the water inlet pipe, and a retaining ring is fixedly connected to the inner wall of the connecting pipe. The inner diameter of the retaining ring is larger than the outer diameter of the water inlet pipe, and the outer diameter of the retaining ring is larger than the inner diameter of the retaining ring. The retaining ring is located below the retaining ring.

[0009] Furthermore, a retaining ring 2 is fixedly connected to the outer wall of the water inlet pipe, and a retaining ring 2 is fixedly connected to the inner wall of the connecting pipe. The inner diameter of the retaining ring 2 is larger than the outer diameter of the water inlet pipe, and the outer diameter of the retaining ring 2 is larger than the inner diameter of the retaining ring 2. The bottom surface of the retaining ring 2 is in contact with the top surface of the retaining ring 2.

[0010] Furthermore, a slip ring is fixedly connected to the outer wall of the water inlet pipe. The outer diameter of the slip ring is the same as the inner diameter of the connecting pipe, and the slip ring is slidably connected to the inner wall of the connecting pipe.

[0011] Furthermore, the outer wall of the water inlet pipe is provided with four water inlets, which are located between the slip ring and the retaining ring.

[0012] Furthermore, a hollow block is connected to the top of the water inlet pipe, and the hollow block is fixedly connected to the water inlet pipe. Two hollow rods are connected to the outer wall of the hollow block, and both hollow rods are fixedly connected to the hollow block. Several nozzles are connected to the top surface of each of the two hollow rods, and both hollow rods are fixedly connected to the several nozzles.

[0013] Furthermore, a glass door is hinged to the front of the machine body, a filter plate is fixedly connected to the inner wall of the machine body, an inclined groove is opened inside the machine body, a sewage discharge box is connected to the left side of the inclined groove, and a valve is slidably connected to the inner wall of the sewage discharge box.

[0014] Furthermore, the outer wall of the water tank is connected to a water inlet pipe, and one end of the water inlet pipe away from the water tank extends to the outside of the machine body. A connecting plug is provided on the end of the water inlet pipe away from the water tank, and a support frame is slidably connected to the inner wall of the machine body.

[0015] This utility model has the following beneficial effects:

[0016] 1. With a sealing mechanism, when assembling the spray arm assembly, the glass door can be opened, and the sealing plastic ring can be placed on the inner wall of the slot. At the same time, the second connecting ring can be placed on the top surface of the first connecting ring. After the second connecting ring contacts the first connecting ring, the first connecting ring and the second connecting ring can be fixed together with bolts using tools. This seals the connection between the outlet pipe and the connecting pipe after the water pump pours water from the water tank into the water pipe, preventing water from overflowing and ensuring that the water pressure can drive the spray arm assembly to rotate, thus improving the overall structural stability.

[0017] 2. By incorporating a spray arm assembly, when the water pump delivers water to the connecting pipe, the water flows sequentially through the gap between the first retaining ring and the first retaining ring. Under water pressure, the water surges to the gap between the second retaining ring and the second retaining ring, pushing the second retaining ring upwards. This allows the water to flow into the inlet pipe through multiple inlets, reducing friction between the inlet pipe and the connecting pipe. The water can then be sprayed from multiple nozzles through the hollow block and hollow rod. The connection between the hollow rod and the nozzle is inclined. With the cooperation of multiple nozzles, the hollow rod receives a counterforce and rotates. Compared to existing spray arms, this device requires less force to rotate and is more stable because the rotating connection is suspended, thus increasing the rotation speed of the hollow rod.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the water tank of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the spray arm assembly of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the nozzle of this utility model;

[0024] Figure 5 for Figure 3 A magnified structural diagram of point A in the middle.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Body; 2. Sealing mechanism; 3. Spray arm assembly; 11. Glass door; 12. Filter plate; 13. Inclined trough; 14. Sewage tank; 15. Valve; 16. Inlet pipe; 17. Connecting plug; 18. Support frame; 21. Water tank; 22. Water pump; 23. Water guide pipe; 24. Connecting ring one; 25. Outlet pipe; 26. Connecting ring two; 27. Connecting pipe; 28. Slot; 29. ​​Sealing plastic ring; 291. Bolt; 31. Inlet pipe; 311. Snap ring one; 32. Retaining ring one; 33. Snap ring two; 34. Retaining ring two; 35. Inlet; 36. Slip ring; 37. Hollow block; 38. Hollow rod; 39. Spray head. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-5 As shown, this utility model is a dishwasher with a stable spray arm rotation, including a body 1, and a sealing mechanism 2 is provided on the body 1;

[0029] The sealing mechanism 2 includes a water tank 21 fixedly connected inside the body 1. A water pump 22 is fixedly connected to the inner bottom wall of the water tank 21. A water guide pipe 23 is fixedly connected to the output end of the water pump 22. A connecting ring 24 is fixedly connected to the outer wall of the water guide pipe 23. A water outlet pipe 25 is connected to the top end of the water guide pipe 23. The water outlet pipe 25 is fixedly connected to the water guide pipe 23. A connecting ring 26 is provided on the top surface of the connecting ring 24. A bolt 291 is threadedly connected between the connecting ring 26 and the connecting ring 24. A connecting pipe 27 is connected to the top surface of the connecting ring 26. The connecting pipe 27 is fixedly connected to the connecting ring 26. A groove 28 is opened on the outer wall of the water outlet pipe 25. A sealing plastic ring 29 is provided on the inner wall of the groove 28. The sealing plastic ring 29 is connected to the outer wall of the connecting pipe 27. The spray arm assembly 3 is installed on the connecting pipe 27. With the sealing mechanism 2, when the spray arm assembly 3 needs to be assembled, the glass door 11 can be opened and the sealing plastic ring 29 can be placed on the inner wall of the slot 28. At the same time, the second connecting ring 26 is placed on the top surface of the first connecting ring 24. After the second connecting ring 26 and the first connecting ring 24 come into contact, the first connecting ring 24 and the second connecting ring 26 can be fixed with bolts 291. This seals the connection between the outlet pipe 25 and the connecting pipe 27 after the water pump 22 pours water from the water tank 21 into the water guide pipe 23, preventing water from overflowing and ensuring that the water pressure can drive the spray arm assembly 3 to rotate, thus improving the stability of the overall structure.

[0030] The spray arm assembly 3 includes a water inlet pipe 31 disposed inside the connecting pipe 27. A retaining ring 311 is fixedly connected to the outer wall of the water inlet pipe 31, and a retaining ring 32 is fixedly connected to the inner wall of the connecting pipe 27. The inner diameter of the retaining ring 32 is larger than the outer diameter of the water inlet pipe 31, and the outer diameter of the retaining ring 311 is larger than the inner diameter of the retaining ring 32. The retaining ring 311 is located below the retaining ring 32. A retaining ring 33 is fixedly connected to the outer wall of the water inlet pipe 31, and a retaining ring 34 is fixedly connected to the inner wall of the connecting pipe 27. The inner diameter of the retaining ring 34 is larger than the outer diameter of the water inlet pipe 31. The outer diameter of the retaining ring 33 is larger than the inner diameter of the retaining ring 34. The bottom surface of the retaining ring 33 contacts the top surface of the retaining ring 34. A slip ring 36 is fixedly connected to the outer wall of the water inlet pipe 31. The outer diameter of the slip ring 36 is the same as the inner diameter of the connecting pipe 27. The slip ring 36 is slidably connected to the inner wall of the connecting pipe 27. Four water inlets 35 are opened on the outer wall of the water inlet pipe 31. The water inlets 35 are located between the slip ring 36 and the retaining ring 33. A hollow block 37 is connected to the top of the water inlet pipe 31. The hollow block 37 is fixedly connected to the water inlet pipe 31. Two hollow rods 38 are connected to the outer wall, and both hollow rods 38 are fixedly connected to the hollow block 37. Several nozzles 39 are connected to the top surface of each of the two hollow rods 38, and both hollow rods 38 and the nozzles 39 are fixedly connected. Through the spray arm assembly 3, when the water pump 22 delivers water to the connecting pipe 27, the water flows sequentially through the gap between the retaining ring 311 and the retaining ring 32. Under water pressure, the water surges to the gap between the retaining ring 33 and the retaining ring 34, pushing the retaining ring 33 upwards, allowing the water flow to... Water can be poured into the inlet pipe 31 through multiple inlets 35, reducing the friction between the inlet pipe 31 and the connecting pipe 27. Water can be sprayed out from multiple nozzles 39 through the hollow block 37 and the hollow rod 38. The connection between the hollow rod 38 and the nozzle 39 is inclined. At this time, with the cooperation of multiple nozzles 39, the hollow rod 38 receives a force in the opposite direction and rotates. Compared with the existing spray arm, this device requires less force to rotate and is more stable because the rotating connection part is in a suspended state, which increases the rotation speed of the hollow rod 38.

[0031] A glass door 11 is hinged to the front of the machine body 1. A filter plate 12 is fixedly connected to the inner wall of the machine body 1. An inclined groove 13 is opened inside the machine body 1. A sewage discharge box 14 is connected to the left side of the inclined groove 13. A valve 15 is slidably connected to the inner wall of the sewage discharge box 14. A water inlet pipe 16 is connected to the outer wall of the water tank 21. One end of the water inlet pipe 16 away from the water tank 21 extends to the outside of the machine body 1. A connecting plug 17 is provided at the end of the water inlet pipe 16 away from the water tank 21. A support frame 18 is slidably connected to the inner wall of the machine body 1.

[0032] A specific application of this embodiment is as follows: By providing a sealing mechanism 2, when it is necessary to assemble the spray arm assembly 3, the glass door 11 can be opened, and the sealing plastic ring 29 can be fitted onto the inner wall of the slot 28. At the same time, the second connecting ring 26 is placed on the top surface of the first connecting ring 24. After the second connecting ring 26 contacts the first connecting ring 24, the first connecting ring 24 and the second connecting ring 26 can be fixed together by using a tool and bolt 291. This allows the connection between the outlet pipe 25 and the connecting pipe 27 to be sealed after the water pump 22 pours the water from the water tank 21 into the water pipe 23, preventing water from overflowing while ensuring that the water pressure can drive the spray arm assembly 3 to rotate, thus improving the stability of the overall structure.

[0033] By providing a spray arm assembly 3, when the water pump 22 delivers water to the connecting pipe 27, the water flows sequentially through the gap between the first retaining ring 311 and the first retaining ring 32. Under the action of water pressure, the water flows to the gap between the second retaining ring 33 and the second retaining ring 34, pushing the second retaining ring 33 upward, so that the water can flow into the inlet pipe 31 through multiple inlets 35, reducing the friction between the inlet pipe 31 and the connecting pipe 27. The water can be sprayed out from multiple nozzles 39 through the hollow block 37 and the hollow rod 38. The connection between the hollow rod 38 and the nozzle 39 is inclined. At this time, with the cooperation of multiple nozzles 39, the hollow rod 38 receives a force in the opposite direction and rotates. Compared with the existing spray arm, since the rotating connection part is in a suspended state, the force required for rotation is smaller, the rotation is more stable, and the rotation speed of the hollow rod 38 is increased.

[0034] The filter plate 12 allows the wastewater to be pre-filtered after cleaning, preventing oil residue from clogging the drain outlet after cleaning. The inclined groove 13 guides the wastewater to the drain tank 14 for discharge. Pulling the valve 15 forward will discharge the wastewater, making it convenient and easy to use. The inlet pipe 16 and the connecting plug 17 work together to allow water to be added to the tank 21 when the water level in the tank 21 is low. The support frame 18 can be used to support and place the dishes that need to be cleaned.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A dishwasher with a rotating spray arm, comprising a body (1), characterized in that: The body (1) is provided with a sealing mechanism (2); The sealing mechanism (2) includes a water tank (21) fixedly connected inside the body (1). A water pump (22) is fixedly connected to the inner bottom wall of the water tank (21). A water guide pipe (23) is fixedly connected to the output end of the water pump (22). A connecting ring (24) is fixedly connected to the outer wall of the water guide pipe (23). A water outlet pipe (25) is connected to the top end of the water guide pipe (23). The water outlet pipe (25) is fixedly connected to the water guide pipe (23). A connecting ring (26) is provided on the top surface of the connecting ring (24). The connecting ring 2 (26) and the connecting ring 1 (24) are threaded together by a bolt (291). The top surface of the connecting ring 2 (26) is connected to a connecting pipe (27). The connecting pipe (27) is fixedly connected to the connecting ring 2 (26). The outer wall of the water outlet pipe (25) is provided with a slot (28). The inner wall of the slot (28) is provided with a sealing plastic ring (29). The sealing plastic ring (29) is in contact with the outer wall of the connecting pipe (27). The connecting pipe (27) is provided with a spray arm assembly (3).

2. A dishwasher with a stabilizing spray arm according to claim 1, characterized in that, The spray arm assembly (3) includes a water inlet pipe (31) disposed inside the connecting pipe (27). A retaining ring (311) is fixedly connected to the outer wall of the water inlet pipe (31), and a retaining ring (32) is fixedly connected to the inner wall of the connecting pipe (27). The inner diameter of the retaining ring (32) is larger than the outer diameter of the water inlet pipe (31), and the outer diameter of the retaining ring (311) is larger than the inner diameter of the retaining ring (32). The retaining ring (311) is located below the retaining ring (32).

3. A dishwasher with a stable spray arm rotation according to claim 2, characterized in that, A retaining ring 2 (33) is fixedly connected to the outer wall of the water inlet pipe (31), and a retaining ring 2 (34) is fixedly connected to the inner wall of the connecting pipe (27). The inner diameter of the retaining ring 2 (34) is larger than the outer diameter of the water inlet pipe (31), and the outer diameter of the retaining ring 2 (33) is larger than the inner diameter of the retaining ring 2 (34). The bottom surface of the retaining ring 2 (33) is in contact with the top surface of the retaining ring 2 (34).

4. A dishwasher with a stable spray arm rotation according to claim 3, characterized in that, A slip ring (36) is fixedly connected to the outer wall of the water inlet pipe (31). The outer diameter of the slip ring (36) is the same as the inner diameter of the connecting pipe (27). The slip ring (36) is slidably connected to the inner wall of the connecting pipe (27).

5. A dishwasher with a stabilizing spray arm according to claim 4, characterized in that, The outer wall of the water inlet pipe (31) is provided with four water inlets (35), which are located between the slip ring (36) and the retaining ring (33).

6. A dishwasher with a stabilizing spray arm according to claim 5, characterized in that, A hollow block (37) is connected to the top of the water inlet pipe (31). The hollow block (37) is fixedly connected to the water inlet pipe (31). Two hollow rods (38) are connected to the outer wall of the hollow block (37). Both hollow rods (38) are fixedly connected to the hollow block (37). Several nozzles (39) are connected to the top surface of both hollow rods (38). Both hollow rods (38) are fixedly connected to the several nozzles (39).

7. A dishwasher with a stabilizing spray arm according to claim 6, characterized in that, A glass door (11) is hinged to the front of the machine body (1), a filter plate (12) is fixedly connected to the inner wall of the machine body (1), an inclined groove (13) is opened inside the machine body (1), a sewage tank (14) is connected to the left side of the inclined groove (13), and a valve (15) is slidably connected to the inner wall of the sewage tank (14).

8. A dishwasher with a stabilizing spray arm according to claim 7, characterized in that, The outer wall of the water tank (21) is connected to a water inlet pipe (16), and one end of the water inlet pipe (16) away from the water tank (21) extends to the outside of the body (1). A connecting plug (17) is provided on the end of the water inlet pipe (16) away from the water tank (21). A support frame (18) is slidably connected to the inner wall of the body (1).