Dish washing machine
By setting water and gas transmission channels in the spray arm, and using the combination of water pump and air compressor, the problem of insufficient injection force is solved, achieving greater injection force and more efficient cleaning effect.
Patent Information
- Application Number
- CN202422239190.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-09-12
AI Technical Summary
The existing dishwasher spray arm assembly has insufficient water injection force and complex structure, which cannot effectively improve the cleaning effect.
A water supply channel and gas transmission channel are arranged in the spray arm, and water is supplied by a water pump and water is sprayed through the water jet hole for cleaning. The air is supplied by an air compressor and gas is sprayed through the air jet hole to disperse the water splash, enhance the jet force, and keep the spray arm rotating through the air jet hole when the water pressure is insufficient.
It achieves more dispersed water spray and greater spray force, improves cleaning effect, and keeps the spray arm rotating when the water pressure is insufficient, enhancing cleaning efficiency.
Smart Images

Figure CN223158340U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of kitchen appliances, and particularly relates to a dishwasher. Background Art
[0002] The Chinese invention patent with the authorization announcement number of CN104757922B discloses a spray arm assembly for a dishwasher and a dishwasher having the same. The spray arm assembly includes: a connector head having a water passage for water inlet therein; a main spray arm rotatably disposed on the connector head in a direction around the connector head, and having a first hollow cavity communicated with the water passage therein; at least one sub-spray arm movably connected to the main spray arm along the length direction of the main spray arm, and having a second hollow cavity communicated with the first hollow cavity therein, and a plurality of sub-spray nozzles communicated with the second hollow cavity are provided on the sub-spray arm, and at least a part of the plurality of sub-spray nozzles are inclined in a direction suitable for driving the sub-spray arm to rotate; a transmission assembly respectively connected to the connector head and the sub-spray arm and driving the sub-spray arm to reciprocate along the length direction of the main spray arm. The spray arm assembly of the above dishwasher has the disadvantages of large washing range increased by setting the sub-spray arm, no enhanced water jet force and complex structure. Summary of the Utility Model
[0003] The purpose of the utility model is to provide a dishwasher for solving the above technical problems.
[0004] A dishwasher includes a water pump, a water distributor, a water outlet pipe and a spray arm. The water outlet of the water pump is communicated with the water inlet of the water distributor, and the water outlet of the water distributor is communicated with one end of the water outlet pipe. An air compressor is provided on one side of the water distributor. The spray arm is provided with a water delivery channel and an air delivery channel separated from each other. The spray arm is provided with a water spray hole connected to the water delivery channel and a gas spray hole connected to the air delivery channel. The input end of the water delivery channel is connected to the other end of the water outlet pipe. An air outlet pipe is provided in the water outlet pipe. The lower end of the air outlet pipe is connected to the output end of the air compressor, and the upper end of the air outlet pipe is connected to the input end of the air delivery channel.
[0005] Preferably, the dishwasher further includes a hot air heater, and the output end of the hot air heater is connected to the input end of the air compressor.
[0006] Preferably, a control valve is provided between the lower end of the air outlet pipe and the output end of the air compressor.
[0007] Preferably, the spray arm is formed by connecting an upper half spray arm and a lower half spray arm to each other.
[0008] Preferably, the upper half spray arm is provided with a plurality of upper support arms, and each middle part of each upper support arm is provided with an independent first groove.
[0009] Preferably, a confluence part is provided at the central position of the upper spray arm, each upper branch arm is provided with a second groove surrounding the first groove, and the confluence part connects the second grooves of each upper branch arm.
[0010] Preferably, the confluence part is provided with an inlet and a plurality of outlets, the inlet is connected to the upper end of the air outlet pipe, and the plurality of outlets are respectively connected to the second grooves.
[0011] Preferably, the lower spray arm is provided with a plurality of lower branch arms, each middle part of the lower branch arms is provided with a third groove, the third grooves communicate with each other, and the first groove is connected to the third groove to form a water delivery channel.
[0012] Preferably, a connecting pipe is provided at the central position of the lower spray arm, the lower end of the connecting pipe is inserted into the water outlet pipe, and the upper end of the connecting pipe is connected to the third groove.
[0013] Preferably, each lower branch arm is provided with a fourth groove surrounding the third groove, the fourth grooves communicate with each other, and the second groove is connected to the fourth groove to form an air delivery channel.
[0014] Preferably, the water spray holes are located at the bottoms of the first groove and the third groove.
[0015] Preferably, the air spray holes are located at the bottoms of the second groove and the fourth groove.
[0016] Compared with the prior art, in the present utility model, a water delivery channel and an air delivery channel which are separated from each other are provided in the spray arm. After water is supplied to the water delivery channel by a water pump, the water is sprayed out through the water spray holes connected to the water delivery channel to clean tableware. The air compressor supplies air to the air outlet pipe, and after the high-pressure gas enters the air delivery channel, it is sprayed out through the air spray holes of the air delivery channel to disperse the water flowers. It has the advantages that the water sprayed out from the water spray holes is more dispersed, the spraying force is greater, the cleaning effect is effectively improved, and when the water pressure is insufficient or the spray arm rotates slowly or does not rotate, the gas sprayed out from the air spray holes can also keep the spray arm rotating. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a schematic structural diagram of a dishwasher of the present utility model;
[0018] Figure 2 is Figure 1 a cutaway perspective view;
[0019] Figure 3 is an exploded perspective view of the spray arm;
[0020] Figure 4 is Figure 3 an exploded perspective view in another direction;
[0021] The realization and advantages of the functions of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Detailed Implementation Modes
[0022] The following will disclose multiple implementation modes of the present utility model with diagrams. For the sake of clear illustration, many practical details will be described together in the following narrative. However, it should be understood that these practical details are not used to limit the present utility model. That is to say, in some implementation modes of the present utility model, these practical details are not necessary. In addition, for the purpose of simplifying the diagrams, some conventional structures and components will be shown in a simple schematic manner in the diagrams.
[0023] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the attached drawings). If this specific posture changes, then the directional indications will also change accordingly.
[0024] In addition, in the present utility model, descriptions such as "first" and "second" are only for descriptive purposes, and do not particularly refer to the order or sequence, nor are they used to limit the present utility model. They are merely used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.
[0025] To further understand the content, features and effects of the present utility model, the following embodiments are exemplified and described in detail with the accompanying drawings as follows:
[0026] As Figures 1 to 4As shown in the figure, the utility model discloses a dishwasher, which includes a water pump 1, a water distributor 2, a water outlet pipe 3 and a spray arm 4. The water outlet of the water pump 1 is communicated with the water inlet of the water distributor 2. The water outlet of the water distributor 2 is communicated with one end of the water outlet pipe 3. An air compressor 5 is arranged on one side of the water distributor 2. The spray arm 4 is internally provided with a separated water delivery channel and air delivery channel. The spray arm 4 is provided with water spray holes 41 connected to the water delivery channel and air spray holes 42 connected to the air delivery channel. The input end of the water delivery channel is connected to the other end of the water outlet pipe 3. An air outlet pipe 6 is arranged in the water outlet pipe 3. The lower end of the air outlet pipe 6 is connected to the output end of the air compressor 5, and the upper end of the air outlet pipe 6 is connected to the input end of the air delivery channel. Compared with the prior art, in the utility model, a separated water delivery channel and air delivery channel are arranged in the spray arm 4. After the water pump 1 supplies water to the water delivery channel, the water is sprayed out through the water spray holes 41 connected to the water delivery channel to clean the tableware. The air compressor 5 supplies air to the air outlet pipe 6. After the high-pressure gas enters the air delivery channel, it is sprayed out through the air spray holes 42 of the air delivery channel to disperse the water flowers. It has the advantages that the water sprayed out from the water spray holes 41 is more dispersed, effectively improving the cleaning effect. When the water pressure is insufficient and the spray arm 4 rotates slowly or does not rotate, the gas sprayed out from the air spray holes 42 can also keep the spray arm 4 rotating.
[0027] Among them, the dishwasher further includes a hot air heater 7. The output end of the hot air heater 7 is connected to the input end of the air compressor 5. After the tableware is washed with water, the hot air heater 7 will start to provide hot air to the spray arm 4 to dry the tableware and the inner cavity of the dishwasher. When the hot air is sprayed out, it generates power to make the spray arm 4 rotate while spraying hot air. Compared with the prior art of directly blowing hot air from the hot air heater into the inner cavity of the dishwasher for drying, it has the advantages of faster and more uniform hot air dispersion and better drying effect.
[0028] Specifically, a control valve 8 is arranged between the lower end of the air outlet pipe 6 and the output end of the air compressor 5. When the control valve 8 is opened, the gas input by the air compressor 5 can enter the air outlet pipe 6 from the control valve 8; on the contrary, when the control valve 8 is closed, the gas input by the air compressor 5 cannot enter the air outlet pipe 6 from the control valve 8.
[0029] Furthermore, the spray arm 4 is formed by connecting an upper half spray arm and a lower half spray arm. The upper half spray arm is provided with three upper support arms 43. Each middle part of the upper support arms 43 is provided with an independent first groove 45, and the three first grooves 45 are not communicated with each other. A confluence part 46 is arranged at the central position of the upper half spray arm. Each upper support arm 43 is provided with a second groove 47 surrounding the first groove 45. The confluence part 46 connects the second grooves 47 of each upper support arm 43; the confluence part is provided with an inlet 461 and three outlets 462. The inlet 461 is communicated with the upper end of the air outlet pipe 6, and the three outlets 462 are respectively communicated with the second grooves 47.
[0030] More specifically, the lower spray arm is provided with three lower support arms 44, and each middle part of the lower support arms 44 is provided with a third groove 48. The third grooves 48 communicate with each other, and the first groove 45 is connected to the third groove 48 to form a water delivery channel. A connecting pipe 441 is arranged at the central position of the lower spray arm. The lower end of the connecting pipe 441 is inserted into the water outlet pipe 3, and the upper end of the connecting pipe 441 communicates with the third groove 48. Each lower support arm 44 is provided with a fourth groove 49 surrounding the third groove 48. The fourth grooves 49 communicate with each other, and the second groove 47 is connected to the fourth groove 49 to form an air delivery channel.
[0031] Among them, the water spray holes 41 are located at the bottoms of the first groove 45 and the third groove 48. The air spray holes 42 are located at the bottoms of the second groove 47 and the fourth groove 49.
[0032] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements or improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A dishwasher, comprising a water pump, a water distributor, a water outlet pipe and a spray arm, wherein the water outlet of the water pump is communicated with the water inlet of the water distributor, and the water outlet of the water distributor is communicated with one end of the water outlet pipe, and is characterized in that: One side of the water separator is provided with an air compressor. The spray arm is provided with a water delivery channel and an air delivery channel which are separated from each other. The spray arm is provided with water spray holes connected to the water delivery channel and air spray holes connected to the air delivery channel. The input end of the water delivery channel is connected to the other end of the water outlet pipe. An air outlet pipe is arranged in the water outlet pipe. The lower end of the air outlet pipe is connected to the output end of the air compressor, and the upper end of the air outlet pipe is connected to the input end of the air delivery channel.
2. A dishwasher according to claim 1, wherein The dishwasher further includes a hot air heater, and the output end of the hot air heater is connected to the input end of the air compressor.
3. A dishwasher according to claim 1, wherein, A control valve is arranged between the lower end of the air outlet pipe and the output end of the air compressor.
4. A dishwasher according to claim 1, characterized in that, The spray arm is formed by connecting an upper half spray arm and a lower half spray arm to each other.
5. A dishwasher according to claim 4, characterized in that, The upper half spray arm is provided with a plurality of upper support arms, and each upper support arm is provided with an independent first groove in the middle.
6. A dishwasher according to claim 5, wherein, A converging part is arranged at the central position of the upper half spray arm. Each upper support arm is provided with a second groove surrounding the first groove, and the converging part connects the second grooves of each upper support arm.
7. A dishwasher according to claim 6, wherein The converging part is provided with an inlet and a plurality of outlets. The inlet is connected to the upper end of the air outlet pipe, and the plurality of outlets are respectively connected to the second grooves.
8. A dishwasher according to claim 5, wherein, The lower half spray arm is provided with a plurality of lower support arms, and each lower support arm is provided with a third groove in the middle. The third grooves communicate with each other, and the first groove is connected to the third groove to form a water delivery channel.
9. A dishwasher according to claim 8, characterized in that, A connecting pipe is arranged at the central position of the lower half spray arm. The lower end of the connecting pipe is inserted into the water outlet pipe, and the upper end of the connecting pipe is connected to the third groove.
10. A dishwasher according to claim 8, characterized in that, Each lower support arm is provided with a fourth groove surrounding the third groove. The fourth grooves communicate with each other, and the second groove is connected to the fourth groove to form an air delivery channel.
11. A dishwasher according to claim 8, wherein, The water spray holes are located at the bottoms of the first groove and the third groove.
12. A dishwasher according to claim 10, characterized in that, The air spray holes are located at the bottoms of the second groove and the fourth groove.
Citation Information
Patent Citations
Spray arm assembly for dishwasher and dishwasher having it
CN104757922B