Dish-washing machine spraying arm system and dish-washing machine using same

Abstract

The utility model relates to a dish-washing machine spraying arm system and a dish-washing machine using the same, and belongs to the field of dish-washing machines, the dish-washing machine spraying arm system comprises a water supply pipeline and a spraying arm group communicated with the water supply pipeline, the water supply pipeline comprises a vertically arranged main water pipe and a branch water pipe fixedly arranged on the front side surface of the main water pipe and communicated with the main water pipe, the water distribution pipe is arranged in the front-back direction, and a spraying arm support is arranged at the front end of the water distribution pipe. The spraying arm set comprises spraying arms with the number corresponding to that of the spraying arm supports, and the spraying arms are installed on the corresponding spraying arm supports and communicated with the water distribution pipe through the spraying arm supports. Compared with a split type communication structure of an existing dish-washing machine, the dish-washing machine does not need a sealing piece in a water supply pipeline, namely, the phenomenon that the sealing piece at the connecting position is aged and deformed is avoided, and therefore the situation that water leaks at the connecting position can be avoided, and the effect of saving water resources is achieved.

Description

Technical Field

[0001] The utility model relates to the field of dishwashers, and particularly relates to a dishwasher spray arm system and a dishwasher using the same. Background Art

[0002] The spray arm of a dishwasher is one of the important components in the dishwasher, and is responsible for evenly spraying water onto the surfaces of tableware and kitchen utensils during the washing process to achieve a cleaning effect. Usually, the dishwasher spray arm will rotate to ensure that the water flow covers all corners inside the dishwasher, thereby effectively removing food residues and dirt.

[0003] In current dishwashers, in addition to the upper and lower spray arms, the spray arm in the middle position is generally installed on the dish basket. A docking pipe is connected to the spray arm, and the spray arm is connected to the water supply pipe at the rear of the dishwasher by abutting the docking pipe against the water supply pipe. When the dish basket is pulled out, the spray arm will move forward with the dish basket, driving the docking pipe to disengage from the abutment with the water supply pipe. After long-term use of such a connection structure, if the seal deforms at the connection between the docking pipe and the water supply pipe, it is easy to have a leakage at the connection between the docking pipe and the water supply pipe, which will cause waste of water resources. At the same time, it will also affect the water volume and water pressure sprayed by the spray arm, reducing the cleaning effect of the spray arm. In addition, since leakage is likely to occur at the docking part, the number of spray arms docked on the water supply pipe cannot be too many to avoid excessive pressure drop in the water supply pipe due to leakage at too many docking parts, resulting in insufficient water supply pressure for the spray arms connected to the rear part of the water supply pipe. Correspondingly, the height of the water supply pipe cannot be too high, which will limit the height of the dishwasher.

[0004] Based on this, the utility model provides a dishwasher spray arm system and a dishwasher using the same. By changing the connection structure between the spray arm and the dishwasher water supply pipe, leakage is avoided, so as to achieve the purpose of saving water resources and maintaining the cleaning effect of the spray arm for a long time. Correspondingly, since leakage can be avoided, the dishwasher using the spray arm system of the utility model can be provided with a higher water supply pipe inside the dishwasher, that is, the height of the dishwasher can be increased without changing the capacity of the dishwasher, so as to achieve the purpose of reducing the floor area of the dishwasher and reducing the site use cost. Summary of the Utility Model

[0005] Based on this, it is necessary to provide a dishwasher spray arm system, including a water supply pipeline and a spray arm group communicated with the water supply pipeline. The water supply pipeline includes a vertically arranged main water pipe and a water distribution pipe fixedly arranged on the front surface of the main water pipe and communicated with the main water pipe. The water distribution pipe is arranged along the front-back direction, and a spray arm support is arranged at the front end of the water distribution pipe. The spray arm group includes spray arms corresponding to the number of the spray arm supports. The spray arms are installed on the corresponding spray arm supports and are communicated with the water distribution pipe through the spray arm supports.

[0006] In the present utility model, the spray arm system is installed and used in a dishwasher. The main water pipe is used to connect with the water supply system of the dishwasher and guide the washing water of the water supply system to each water distribution pipe. Among them, after the washing water enters the water distribution pipe, it will pass through the spray arm support and then be sprayed out from the spray arms installed on the spray arm support, thereby driving the spray arms to rotate and realizing the washing effect of the spray arms on the tableware.

[0007] In the present utility model, the water distribution pipe is fixedly installed on the main water pipe by a fixed connection structure. Compared with the split connection structure of the current dishwasher, the present utility model does not require a sealing member in the water supply pipeline, that is, the phenomenon of aging and deformation of the sealing member at the connection will not occur, so that the situation of water leakage at the connection can be avoided, playing a role in saving water resources.

[0008] At the same time, avoiding the situation of water leakage in the water supply pipeline can also ensure that the water volume and water pressure sprayed out from the spray arms will not decrease, effectively ensuring the good washing effect of the dishwasher. On this basis, since the present utility model can avoid the situation of water leakage in the water supply pipeline and ensure that the water pressure of the water flow in the water supply pipeline will not decrease, therefore, the present utility model can ensure that each spray arm has a good spray washing effect when the main water pipe is made longer and the number of water distribution pipes is more. That is, on the premise of ensuring the good spray washing effect of the spray arms, the dishwasher using the present utility model can be designed to be higher in height, so that under the condition of unchanged capacity of the dishwasher, its floor area can be smaller, reducing the area occupied by the dishwasher.

[0009] Further, the water inlet of the main water pipe is located at the lower end of the main water pipe.

[0010] In the present utility model, setting the water inlet of the main water pipe at its lower end can ensure the stability of the water flow in the water supply pipeline, thereby maintaining the uniformity of the water pressure, which is beneficial to the stability of the washing effect of the dishwasher. In addition, the water inlet of the main water pipe at the lower end helps to reduce the risk of water leakage at the water inlet. If there is a leak at the water inlet, the water will flow back to the bottom of the dishwasher and be pumped to the drain pipe, which can avoid the leaked water from soaking the electronic components in the dishwasher.

[0011] Furthermore, the main water pipe is a tubular structure with a rectangular cross-section, and the rear side wall of the main water pipe forms an installation surface.

[0012] In the present utility model, the installation surface on the rear side wall of the main water pipe is flat. When the main water pipe is fixedly installed in the dishwasher, the flat installation surface can increase the contact area between the main water pipe and the installation structure in the dishwasher, thereby improving the stability and firmness of the connection structure between the main water pipe and the dishwasher.

[0013] Furthermore, the main water pipe and the sub-water pipe are fixedly connected through a welding structure.

[0014] Furthermore, the spray arm support is a circular tubular shape with a closed lower end. A connection portion for connecting and communicating with the sub-water pipe is provided on the side wall of the spray arm support. An installation frame for installing the spray arm is provided at the upper open end of the spray arm support. The installation frame includes a bracket fixedly arranged on the inner side wall of the spray arm support and an installation structure for installing the spray arm fixedly arranged on the bracket.

[0015] In the present utility model, the spray arm support is connected and installed on the sub-water pipe through the connection portion thereon.

[0016] In the present utility model, the installation frame at the upper open end of the spray arm support is used for installing the spray arm. Among them, a plurality of gaps are formed on the bracket fixedly arranged on the inner side wall of the spray arm support for the passage of water flow. The spray arm installation structure fixed on the bracket needs to be set according to the structure of the used spray arm so that the water flowing out of the upper open end of the spray arm support can enter the spray arm and drive the spray arm to rotate.

[0017] Furthermore, the sub-water pipe is circular tubular. An external thread is provided on the outer surface of one end of the sub-water pipe away from the main water pipe to form a connection end. The connection portion on the spray arm support is circular tubular. The connection portion is communicated with the spray arm support. And an internal thread matching the connection end is provided on the inner side wall of one end of the connection portion away from the spray arm support. The connection portion is fixedly and sealingly connected with the connection end through its external thread.

[0018] In the present utility model, the spray arm support is threadedly connected with the sub-water pipe through the connection portion thereon, which can facilitate the removal of the spray arm support from the sub-water pipe, thereby facilitating the maintenance and replacement of the spray arm support and the spray arm. The specific disassembly process is as follows: Rotate the spray arm to be parallel to the sub-water pipe, and then rotate the spray arm and the spray arm support along the central axis of the sub-water pipe to remove the spray arm support from the sub-water pipe.

[0019] On the other hand, the present utility model also provides a dishwasher using the above-mentioned spray arm system.

[0020] The principles and effects of the present utility model will be further described below in conjunction with the above technical solutions and the accompanying drawings:

[0021] In the present utility model, the sub-water pipes are fixedly installed on the main water pipe by a fixed connection structure. Compared with the split connection structure of the current dishwashers, the present utility model does not require seals in the water supply pipeline, that is, the phenomenon of aging and deformation of the seals at the joints will not occur, thereby avoiding water leakage at the joints and playing a role in saving water resources.

[0022] At the same time, avoiding water leakage in the water supply pipeline can also ensure that the water volume and water pressure sprayed from the spray arms will not decrease, effectively ensuring good washing effects of the dishwasher. On this basis, since the present utility model can avoid water leakage in the water supply pipeline and ensure that the water pressure of the water flow in the water supply pipeline will not decrease, therefore, the present utility model can ensure that each spray arm has good spray washing effects when the main water pipe is made longer and the number of sub-water pipes is increased. That is, on the premise of ensuring good spray washing effects of the spray arms, the dishwasher using the present utility model can be designed to be taller, so that under the condition of unchanged capacity of the dishwasher, its floor area can be smaller, reducing the area occupied by the dishwasher. Description of the Drawings

[0023] Figure 1 It is a schematic structural diagram of the spray arm system of the dishwasher according to the embodiment of the present utility model;

[0024] Figure 2 It is a schematic connection structure diagram of the sub-water pipe and the spray arm according to the embodiment of the present utility model.

[0025] Reference Signs

[0026] 1 - Main water pipe, 11 - Water inlet, 2 - Sub-water pipe, 3 - Spray arm support, 31 - Connection part, 32 - Bracket, 4 - Spray arm. Detailed Embodiments

[0027] For the convenience of those skilled in the art to understand, the present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments:

[0028] As Figure 1-2 , a spray arm system of a dishwasher includes a water supply pipeline and 4 groups of spray arms communicated with the water supply pipeline. The water supply pipeline includes a vertically arranged main water pipe 1 and a sub-water pipe 2 fixedly arranged on the front surface of the main water pipe 1 and communicated with the main water pipe 1. The sub-water pipe 2 is arranged along the front-rear direction, and a spray arm support 3 is arranged at the front end of the sub-water pipe 2; the 4 groups of spray arms include spray arms 4 corresponding in number to the spray arm support 3. The spray arms 4 are installed on the corresponding spray arm supports 3 and communicated with the sub-water pipe 2 through the spray arm supports 3.

[0029] In the present utility model, the spray arm 4 system is installed and used inside a dishwasher. The main water pipe 1 is used to connect with the water supply system of the dishwasher and direct the washing water of the water supply system to each sub-water pipe 2. Among them, after the washing water enters the sub-water pipe 2, it will pass through the spray arm support 3 and then be sprayed out from the spray arm 4 installed on the spray arm support 3, thereby driving the spray arm 4 to rotate and realizing the washing effect of the spray arm 4 on tableware.

[0030] In the present utility model, the sub-water pipe 2 is fixedly installed on the main water pipe 1 by means of a fixed connection structure. Compared with the split connection structure of the current dishwasher, the present utility model does not require a seal in the water supply pipeline, that is, the phenomenon of aging and deformation of the seal at the connection will not occur, thereby avoiding the leakage of water at the connection and playing a role in saving water resources.

[0031] At the same time, avoiding the leakage of water in the water supply pipeline can also ensure that the water volume and water pressure sprayed out from the spray arm 4 will not decrease, effectively ensuring the good washing effect of the dishwasher. On this basis, since the present utility model can avoid the leakage of water in the water supply pipeline and ensure that the water pressure of the water flow in the water supply pipeline will not decrease, therefore, the present utility model can ensure that each spray arm 4 has a good spray washing effect when the main water pipe 1 is made longer and the number of sub-water pipes 2 is increased. That is, on the premise of ensuring the good spray washing effect of the spray arm 4, the dishwasher using the present utility model can be designed to be higher, so that, without changing the capacity of the dishwasher, its floor area can be made smaller, reducing the floor area occupied by the dishwasher and reducing the site use cost.

[0032] In one embodiment, the water inlet 11 of the main water pipe 1 is located at the lower end of the main water pipe 1.

[0033] In this embodiment, setting the water inlet 11 of the main water pipe 1 at its lower end can ensure the stability of the water flow in the water supply pipeline, thereby maintaining the uniformity of the water pressure, which is beneficial to the stability of the washing effect of the dishwasher. In addition, the water inlet 11 of the main water pipe 1 at the lower end helps to reduce the risk of water leakage at the water inlet 11. If leakage occurs at the water inlet 11, the water will flow back to the bottom of the dishwasher and be pumped to the drain pipe, avoiding the water leaked out from wetting the electronic components inside the dishwasher.

[0034] In one embodiment, the main water pipe 1 is a tubular structure with a rectangular cross-section, and the rear side wall of the main water pipe 1 forms an installation surface.

[0035] In this embodiment, the installation surface on the rear side wall of the main water pipe 1 is flat. When the main water pipe 1 is fixedly installed inside the dishwasher, the flat installation surface can increase the contact area between the main water pipe 1 and the installation structure inside the dishwasher, thereby improving the stability and firmness of the connection structure between the main water pipe 1 and the dishwasher.

[0036] In one embodiment, the main water pipe 1 and the branch water pipe 2 are fixedly connected through a welding structure.

[0037] In one embodiment, the spray arm support 3 is in the shape of a circular tube with a closed lower end. A connecting portion 31 for connecting and communicating with the branch water pipe 2 is provided on the side wall of the spray arm support 3. An installation frame for installing the spray arm 4 is provided at the upper opening of the spray arm support 3. The installation frame includes a bracket 32 fixedly arranged on the inner side wall of the spray arm support 3 and an installation structure for installing the spray arm 4 fixedly arranged on the bracket 32.

[0038] In this embodiment, the spray arm support 3 is connected and installed on the branch water pipe 2 through the connecting portion 31 thereon.

[0039] In this embodiment, the installation frame at the upper opening of the spray arm support 3 is for installing the spray arm 4. Among them, a plurality of gaps are formed on the bracket 32 fixedly arranged on the inner side wall of the spray arm support 3 for the passage of water flow. The installation structure of the spray arm 4 fixed on the bracket 32 needs to be set according to the structure of the used spray arm 4 so that the water flowing out of the upper opening of the spray arm support 3 can enter the spray arm 4 and push the spray arm 4 to rotate.

[0040] In one embodiment, the branch water pipe 2 is in the shape of a circular tube. An external thread is provided on the outer surface of the end of the branch water pipe 2 away from the main water pipe 1 to form a connection end. The connecting portion 31 on the spray arm support 3 is in the shape of a circular tube. The connecting portion 31 is communicated with the spray arm support 3. And an internal thread matching the connection end is provided on the inner side wall of the end of the connecting portion 31 away from the spray arm support 3. The connecting portion 31 is fixedly connected to the connection end in a sealed manner through its external thread.

[0041] In this embodiment, the spray arm support 3 is threadedly connected to the branch water pipe 2 through the connecting portion 31 thereon, which can facilitate the removal of the spray arm support 3 from the branch water pipe 2, thereby facilitating the maintenance and replacement of the spray arm support 3 and the spray arm 4. The specific removal process is as follows: Rotate the spray arm 4 to be parallel to the branch water pipe 2, and then rotate the spray arm 4 and the spray arm support 3 along the central axis of the branch water pipe 2 to remove the spray arm support 3 from the branch water pipe 2.

[0042] On the other hand, the present utility model also provides a dishwasher using the above spray arm system.

[0043] The above embodiments only illustrate several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all fall within the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. A dishwasher spray arm system, comprising a water supply pipeline and a spray arm group communicated with the water supply pipeline, characterized in that, The water supply pipeline includes a main water pipe arranged vertically and a branch water pipe fixedly arranged on the front surface of the main water pipe and communicated with the main water pipe. The branch water pipe is arranged along the front-rear direction, and a spray arm support is arranged at the front end of the branch water pipe. The spray arm group includes spray arms corresponding to the number of the spray arm supports. The spray arms are installed on the corresponding spray arm supports and are communicated with the branch water pipe through the spray arm supports.

2. The dishwasher spray arm system according to claim 1, characterized in that, The water inlet of the main water pipe is located at the lower end of the main water pipe.

3. A dishwasher spray arm system according to claim 1, wherein, The main water pipe is a tubular structure with a rectangular cross-section, and the rear side wall of the main water pipe forms an installation surface.

4. A dishwasher spray arm system according to claim 1, wherein The main water pipe and the branch water pipe are fixedly connected through a welding structure.

5. A dishwasher spray arm system according to any one of claims 1-4, characterized in that, The spray arm support is a circular tubular shape with a closed lower end. A connecting part for connecting and communicating with the branch water pipe is arranged on the side wall of the spray arm support. An installation frame for installing the spray arm is arranged at the upper end opening of the spray arm support. The installation frame includes a bracket fixedly arranged on the inner side wall of the spray arm support and an installation structure for installing the spray arm fixedly arranged on the bracket.

6. A dishwasher spray arm system according to claim 5, characterized in that, The branch water pipe is a circular tubular shape. An external thread is arranged on the outer surface of one end of the branch water pipe far away from the main water pipe to form a connection end. The connecting part on the spray arm support is a circular tubular shape. The connecting part is arranged to communicate with the spray arm support, and an internal thread matching the connection end is arranged on the inner side wall of one end of the connecting part far away from the spray arm support. The connecting part is fixedly connected with the connection end in a sealed manner through its external thread.

7. A dishwasher, characterized in that, Use the spray arm system according to any one of claims 1-6.

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