Vertical spraying arm assembly and dish washing machine with same

Abstract

The utility model discloses a vertical spraying arm assembly and a dish washing machine with the vertical spraying arm assembly, and belongs to the technical field of washing equipment. A vertical spraying arm assembly is installed in a dish-washing machine and comprises a water inlet pipeline communicated with a water supply device of the dish-washing machine; the spraying pipe is vertically installed in a washing cavity of the dish washing machine, and the bottom of the spraying pipe communicates with the water inlet pipeline and is in rotary sealing fit with the water inlet pipeline; spraying holes are distributed in the pipe wall of the spraying pipe in the vertical direction; an inclined angle is formed between the spraying direction of the spraying holes and the vertical direction; the top of the spraying pipe is sealed; the driving motor is mounted at the top of the dish-washing machine and used for driving the spraying pipe to rotate; and the output end of the driving motor is in linkage fit with the spraying pipe. The spraying pipe is vertically installed relative to the washing cavity of the dish-washing machine, water flow can be sprayed into the washing cavity through the spraying holes, an inclined angle is formed between the water flow direction and the vertical direction, and therefore washing dead angles which cannot be directly washed through vertical spraying can be conveniently washed.

Description

Technical Field

[0001] The utility model relates to the technical field of washing equipment, in particular to a vertical spray arm assembly and a dishwasher. Background Art

[0002] At present, with the improvement of living standards, the use of dishwashers has gradually begun to enter the homes of the general public. The working principle of traditional dishwashers is to spray water containing detergent onto the surface of dishes through the rotation of the self-rotating spray arm; and the traditional spray arm is set at the bottom or top of the dishwasher washing chamber, and the dishes in the bowl basket are vertically rinsed upward or downward. When some dishes are tilted or covered with each other, simple vertical rinsing has a dead corner, which requires a long rinsing time. In addition, the vertical rinsing method is not direct enough to rinse the side walls of the dishwasher. The cleaning effect of the side walls achieved by the splashing of water flow is poor and time-consuming. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a vertical spray arm assembly in view of the above-mentioned technical deficiencies. The vertical spray arm assembly is installed vertically relative to the washing chamber of the dishwasher, and can spray water into the washing chamber through the spray hole, and the water flow direction has an inclination angle with the vertical direction, and the spray pipe can rotate circumferentially under the action of a driving motor, which is conducive to flushing dead corners that cannot be directly flushed by vertical spraying, helps to reduce cleaning time, improve cleaning efficiency, and can also improve the cleaning effect of the side wall of the inner cavity of the dishwasher.

[0004] The technical solution adopted by the utility model is: to provide a vertical spray arm assembly installed in a dishwasher, comprising:

[0005] a water inlet pipeline, connected to a water supply device of the dishwasher;

[0006] The spray pipe is vertically installed in the washing chamber of the dishwasher, the bottom of the spray pipe is connected to the water inlet pipe and is in rotational sealing cooperation with the water inlet pipe; the wall of the spray pipe is vertically distributed with spray holes; the spray direction of the spray hole is at an inclination angle with the vertical direction; the top of the spray pipe is sealed;

[0007] The driving motor is installed on the top of the dishwasher and is configured to drive the rotation of the spray pipe; the output end of the driving motor is linked with the spray pipe.

[0008] To further optimize the technical solution, the drive motor is located outside the washing chamber of the dishwasher, and a sealing cover is installed between the drive motor and the upper shell of the washing chamber; a sealing ring is arranged between the bottom of the sealing cover and the upper shell of the washing chamber, and the sealing ring is constructed to prevent water in the washing chamber from flowing from the inner cavity of the sealing cover to the outside of the washing chamber.

[0009] To further optimize the technical solution, the driving motor and the spray pipe are linked via a motor transmission member; a limit pair is provided between the motor transmission member and the upper shell of the washing chamber; the limit pair is used to limit the rotation angle of the driving motor.

[0010] To further optimize the technical solution, the driving motor and the spray pipe are linked via a motor transmission member; a limit pair is provided between the motor transmission member and the sealing gland; the limit pair is used to limit the rotation angle of the driving motor.

[0011] To further optimize the technical solution, the motor transmission member and the spray pipe are detachably matched in the vertical direction; a compression spring is installed between the motor transmission member and the top of the spray pipe; the compressible stroke of the compression spring is greater than or equal to the stroke required for the bottom of the spray pipe to upwardly detach from the water inlet pipeline.

[0012] To further optimize the technical solution, the motor transmission member is provided with an A transmission sleeve; a B transmission sleeve is provided on the top of the spray pipe; the A transmission sleeve and the B transmission sleeve are axially slidably matched and circumferentially linked; the compression spring is provided between the A transmission sleeve and the B transmission sleeve, and the lower end of the compression spring is fixed in the B transmission sleeve.

[0013] The utility model also provides a dishwasher, which is equipped with at least one vertical spray arm assembly described in any one of the above technical solutions.

[0014] The technical solution recorded in the utility model is that the spray pipe is arranged vertically and can rotate in a circumferential direction under the drive of the driving motor. The direction of the water sprayed from the spray hole has an inclination angle with the vertical direction, which can make up for the washing dead angle existing in the simple upward or / and downward spraying. For example, when the dishes are stacked horizontally, the vertical water flow cannot directly spray the dishes stacked in the middle area. In this case, the water flow sprayed from the side of the washing chamber by the spray hole can be sprayed into the gap between the dishes to improve the cleaning efficiency.

[0015] Other technical effects of the present invention will be explained in the development of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 Book Figure 1 A schematic diagram of the decomposition of one direction;

[0018] Figure 3 for Figure 1 Schematic diagram of the other direction of decomposition.

[0019] In the figure, 1. water inlet pipe; 2. spray pipe; 3. washing chamber; 4. spray hole; 5. drive motor; 6. washing chamber upper shell; 7. sealing cover; 8. sealing ring; 9. motor transmission part; 10. limit pair; 11. compression spring; 12. A transmission sleeve; 13. B transmission sleeve. DETAILED DESCRIPTION Example

[0020] like Figures 1 to 3 As shown, a vertical spray arm assembly is installed in a dishwasher, comprising:

[0021] A water inlet pipe 1 is connected to the water supply device of the dishwasher;

[0022] The spray pipe 2 is vertically installed in the washing chamber 3 of the dishwasher. The bottom of the spray pipe 2 is connected to the water inlet pipe 1 and is rotatably sealed with the water inlet pipe 1. The wall of the spray pipe 2 is provided with spray holes 4 distributed in the vertical direction. The spray direction of the spray holes 4 is at an inclined angle to the vertical direction. The top of the spray pipe 2 is sealed.

[0023] The driving motor 5 is installed on the top of the dishwasher and is configured to drive the spray pipe 2 to rotate; the output end of the driving motor 5 is in linkage with the spray pipe 2 .

[0024] In this embodiment, the spray direction of the spray hole 4 has an inclination angle with the vertical direction, and the inclination angle can be 90°, or it can be inclined upward or downward, or the direction and inclination angle of the jets of each spray hole 4 can be different. The purpose is to provide impact washing in the side direction of horizontally stacked dishes, or to make up for the spray dead corners that cannot be reached by washing in the upper and lower directions alone.

[0025] To further optimize this embodiment, the drive motor 5 is located outside the washing chamber 3 of the dishwasher, and a sealing cover 7 is installed between the drive motor 5 and the upper shell 6 of the washing chamber; a sealing ring 8 is provided between the bottom of the sealing cover 7 and the upper shell 6 of the washing chamber, and the sealing ring 8 is constructed to prevent water in the washing chamber 3 from flowing from the inner cavity of the sealing cover 7 to the outside of the washing chamber 3.

[0026] The drive motor 5 is located outside the washing chamber 3, which is beneficial to its waterproofing. The transmission structure between the drive motor 5 and the spray pipe 2 passes through the upper shell 6 of the washing chamber. Since the drive motor 5 rotates to drive the spray pipe 2, there will be a gap between the transmission structure and the upper shell 6 of the washing chamber. When the dishwasher is working, water splashing may flow through the gap to the outside of the washing chamber 3. The sealing gland 7 and the sealing ring 8 seal this part of the outflowing water. When the collected water reaches a certain height, it will flow back into the washing chamber 3 due to the height difference.

[0027] To further optimize this embodiment, the driving motor 5 and the spray pipe 2 are linked via a motor transmission member 9 ; a limit pair 10 is provided between the motor transmission member 9 and the upper shell 6 of the washing chamber; the limit pair 10 is used to limit the rotation angle of the driving motor 5 .

[0028] The limit pair 10 limits the rotation of the driving motor 5 so that the trajectory of the water jet from the spray hole 4 is limited to the area where the dishes are stacked in the washing chamber 3, which is beneficial to improving the cleaning efficiency.

[0029] As another optimization of this embodiment, the driving motor 5 and the spray pipe 2 are linked through the motor transmission member 9; a limit pair 10 is set between the motor transmission member 9 and the sealing cover 7; the limit pair 10 is used to limit the rotation angle of the driving motor 5.

[0030] The position of the limit pair 10 can be between the motor transmission member 9 and the sealing gland 7, or between the motor transmission member 9 and the upper shell 6 of the washing chamber, or the limit pair 10 can be set at both positions. Figures 1 to 3 Only the limit pair 10 is shown between the motor transmission member 9 and the upper shell 6 of the washing chamber, and other settings are omitted.

[0031] As a further optimization of this embodiment, the motor transmission member 9 and the spray pipe 2 are detachably matched in the vertical direction; a compression spring 11 is installed between the motor transmission member 9 and the top of the spray pipe 2; the compressible stroke of the compression spring 11 is greater than or equal to the stroke required for the bottom of the spray pipe 2 to upwardly detach from the water inlet pipe 1.

[0032] The spray pipe 2 may be clogged, scaled, corroded or leaked after long-term use. In this case, the spray pipe 2 needs to be disassembled for maintenance or replacement. In this embodiment, the spray pipe 2 is pushed upward to overcome the pressure of the compression spring 11, so that the bottom of the spray pipe 2 is separated from the water inlet pipeline 1, and the lower part of the spray pipe 2 is moved to one side by using the bending elasticity of the spray pipe 2 or the assembly gap with the motor transmission part 9, and then the spray pipe 2 is moved downward to separate it from the motor transmission part 9, and the spray pipe 2 can be taken out. The function of the compression spring 11 is to give the spray pipe 2 downward pressure to the water inlet pipeline 1, so that it overcomes the pressure generated by the spray water flow.

[0033] As a further optimization of this embodiment, the motor transmission member 9 is provided with an A transmission sleeve 12; a B transmission sleeve 13 is provided on the top of the spray pipe 2; the A transmission sleeve 12 and the B transmission sleeve 13 are axially slidably matched and circumferentially linked; the compression spring 11 is provided between the A transmission sleeve 12 and the B transmission sleeve 13, and the lower end of the compression spring 11 is fixed in the B transmission sleeve 13.

[0034] The compression spring 11 is arranged between the A transmission sleeve 12 and the B transmission sleeve 13 to protect them from direct splashing of water during washing and to prevent dirt from being deposited and causing erosion. Example

[0035] A dishwasher is provided with at least one vertical spray arm assembly as described in any one of the above embodiments. In order to improve the utilization of the inner cavity space of the dishwasher, a preferred solution is that a vertical spray arm assembly is installed at the corner of the side wall of the washing cavity.

[0036] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0037] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

Claims

1. A vertical spray arm assembly installed in a dishwasher, characterized in that include: a water inlet pipeline, connected to a water supply device of the dishwasher; The spray pipe is vertically installed in the washing chamber of the dishwasher, the bottom of the spray pipe is connected to the water inlet pipe and is in rotational sealing cooperation with the water inlet pipe; the wall of the spray pipe is vertically distributed with spray holes; the spray direction of the spray hole is at an inclination angle with the vertical direction; the top of the spray pipe is sealed; The driving motor is installed on the top of the dishwasher and is configured to drive the rotation of the spray pipe; the output end of the driving motor is linked with the spray pipe.

2. A vertical spray arm assembly according to claim 1, characterized in that: The driving motor is located outside the washing chamber of the dishwasher, and a sealing gland is installed between the driving motor and the upper shell of the washing chamber; a sealing ring is arranged between the bottom of the sealing gland and the upper shell of the washing chamber, and the sealing ring is constructed to prevent water in the washing chamber from flowing from the inner cavity of the sealing gland to the outside of the washing chamber.

3. A vertical spray arm assembly according to claim 1, characterized in that: The driving motor and the spray pipe are linked via a motor transmission member; a limit pair is arranged between the motor transmission member and the upper shell of the washing chamber; the limit pair is used to limit the rotation angle of the driving motor.

4. A vertical spray arm assembly according to claim 2, characterized in that: The driving motor and the spray pipe are linked via a motor transmission member; a limit pair is arranged between the motor transmission member and the sealing gland; the limit pair is used to limit the rotation angle of the driving motor.

5. A vertical spray arm assembly according to claim 3 or 4, characterized in that: The motor transmission member and the spray pipe are detachably matched in the vertical direction; a compression spring is installed between the motor transmission member and the top of the spray pipe; the compressible stroke of the compression spring is greater than or equal to the stroke required for the bottom of the spray pipe to upwardly detach from the water inlet pipeline.

6. A vertical spray arm assembly according to claim 5, characterized in that: The motor transmission member is provided with an A transmission sleeve; a B transmission sleeve is provided on the top of the spray pipe; the A transmission sleeve and the B transmission sleeve are axially slidably matched and circumferentially linked; the compression spring is provided between the A transmission sleeve and the B transmission sleeve, and the lower end of the compression spring is fixed in the B transmission sleeve.

7. A dishwasher, characterized in that At least one vertical spray arm assembly according to any one of claims 1 to 6 is installed.

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