Dish washing machine

Abstract

The dish washing machine comprises a machine body, a water pump, a water segregator, a water outlet pipe, a motor and a spraying arm, the water pump, the water segregator and the motor are fixed on the machine body, a water outlet of the water pump is communicated with a water inlet of the water segregator, a water outlet of the water segregator is communicated with one end of the water outlet pipe, and the spraying arm is connected with a rotating shaft of the motor and driven by the rotating shaft of the motor to rotate. The spraying arm is provided with a first sleeve extending downwards and connected with the water outlet pipe, a connecting ring with an inner hole is arranged at the lower end of the first sleeve, a transmission shaft is arranged between the connecting ring and the rotating shaft, the lower end of the transmission shaft is connected with the rotating shaft, and the upper end of the transmission shaft extends into the inner hole of the connecting ring and is connected with the connecting ring. Compared with the prior art, the structure is simple, and the rotating speed of the gushing arm is not influenced by high or low water pressure; the spraying holes do not need to conduct spraying in a certain direction, tableware does not need to be strictly, normatively and specifically controlled to be placed, the spraying arm is driven by the motor to rotate, the spraying force is larger, and the cleaning effect is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a dishwasher. Background Art

[0002] Chinese invention patent publication number CN107028572B discloses a dishwasher spray arm device and a dishwasher having the same. The dishwasher spray arm device comprises a spray arm base; a central gear positioned at the water outlet of the spray arm base, the central gear fixed relative to the spray arm base; planetary gears drivingly connected to the central gear; a gear rack, the central gear and planetary gears rotatably disposed below the gear rack; and a spray arm body fixedly connected relative to the planetary gear. The spray arm body is provided with a spray hole connected to the spray arm base and a thrust nozzle hole, the thrust nozzle hole being adapted to spray water and rotate the spray arm body. The aforementioned dishwasher spray arm body is driven by the central gear and planetary gears, and the thrust nozzle hole is adapted to spray water and rotate the spray arm body. However, the device suffers from a complex structure, lacks enhanced water spraying force, and slow or no rotation of the spray arm body when water pressure is low. Utility Model Content

[0003] The purpose of the present utility model is to provide a dishwasher, which is used to solve the above technical problems.

[0004] The utility model provides a dishwasher, comprising a machine body, a water pump, a water distributor, a water outlet pipe, a motor and a spray arm, wherein the water pump, the water distributor and the motor are fixed to the machine body, the water outlet of the water pump is connected to the water inlet of the water distributor, the water outlet of the water distributor is connected to one end of the water outlet pipe, the spray arm is connected to the rotating shaft of the motor and is driven to rotate by the rotating shaft of the motor, the spray arm is provided with a first sleeve extending downward and connected to the water outlet pipe, the lower end of the first sleeve is provided with a connecting ring with an inner hole, a transmission shaft is provided between the connecting ring and the rotating shaft, the lower end of the transmission shaft is connected to the rotating shaft, and the upper end of the transmission shaft extends into the inner hole of the connecting ring and is connected to the connecting ring.

[0005] Preferably, the upper end of the transmission shaft is polygonal, and the inner hole of the connecting ring has the same shape as the upper end of the transmission shaft.

[0006] Preferably, the upper end of the transmission shaft is hexagonal, and the inner hole of the connecting ring is correspondingly hexagonal.

[0007] Preferably, the connecting ring is provided with a plurality of connecting ribs, one end of the connecting rib is fixedly connected to the connecting ring, and the other end of the connecting rib is fixedly connected to the side wall of the first sleeve.

[0008] Preferably, a second sleeve is provided between the water outlet pipe and the first sleeve, the upper end of the second sleeve is connected to the lower end of the first sleeve, and the lower end of the second sleeve is connected to the upper end of the water outlet pipe.

[0009] Preferably, the second sleeve is provided with a positioning ring that allows the transmission shaft to pass through and positions the transmission shaft.

[0010] Preferably, the positioning ring is provided with a plurality of positioning ribs, one end of the positioning rib is fixedly connected to the positioning ring, and the other end of the positioning rib is fixedly connected to the side wall of the second sleeve.

[0011] Preferably, the transmission shaft is provided with a stepped portion, and the stepped portion is located at the lower side of the positioning ring.

[0012] Preferably, the dishwasher is further provided with a bracket for fixing the motor, a positioning column is provided on the machine body, and the bracket is fixed to the positioning column by screws.

[0013] Compared with the prior art, the utility model has the following advantages: 1. The spray arm and the motor are connected by a transmission shaft, and the motor drives the spray arm to realize forward and reverse rotation. When the motor rotates, the spray arm rotates, and when the motor is powered off, the spray arm also stops rotating. The structure is simple, and high or low water pressure does not affect the rotation speed of the spray arm. 2. The spray hole of the spray arm is designed with a comprehensive balance, eliminating or weakening the power hole, reducing the ineffective loss of water pressure and water volume. 3. The spray hole does not need to spray in a certain direction, so the placement of tableware does not need strict, standardized, and targeted control. The motor drives the spray arm to rotate, making the spray force greater and effectively improving the cleaning effect. 4. By providing a connecting ring with an inner hole at the lower end of the first sleeve and connecting it to the upper end of the transmission shaft, the length of the transmission shaft is effectively shortened, the loss of motor power is reduced, and the transmission efficiency of the motor shaft is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional diagram of a dishwasher of the present invention;

[0015] Figure 2 for Figure 1 sectional perspective view of

[0016] Figure 3 for Figure 1 A stereogram from another direction;

[0017] Figure 4 is a three-dimensional diagram of the spray arm;

[0018] Figure 5 is a perspective view of the second sleeve;

[0019] Figure 6 is a three-dimensional diagram of the transmission shaft;

[0020] The realization of the functions and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0021] The following diagrams illustrate various embodiments of the present invention. For clarity, many practical details will be included in the following description. However, it should be understood that these practical details are not intended to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not essential. Furthermore, to simplify the drawings, some commonly used structures and components are depicted in simplified schematic form.

[0022] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0023] In addition, in the present invention, descriptions such as "first" and "second" are only used for descriptive purposes and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only 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 number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. 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 invention.

[0024] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:

[0025] like Figures 1 to 5As shown, a dishwasher of the present invention includes a body 1, a water pump 2, a water divider 3, a water outlet pipe 4, a motor 5 and a spray arm 6. The water pump 2, the water divider 3 and the motor 5 are fixed on the body 1, the water outlet of the water pump 2 is connected to the water inlet of the water divider 3, the water outlet of the water divider 3 is connected to one end of the water outlet pipe 4, the spray arm 6 is connected to the rotating shaft 51 of the motor 5 and is driven to rotate by the rotating shaft 51 of the motor 5, the spray arm 6 is provided with a first sleeve 61 extending downward and connected to the water outlet pipe 4, the lower end of the first sleeve 61 is provided with a connecting ring 62, a transmission shaft 52 is provided between the connecting ring 62 and the rotating shaft 51, the lower end of the transmission shaft 52 is connected to the rotating shaft 51, and the upper end of the transmission shaft 52 extends into the inner hole 63 of the connecting ring 62 and is connected to the connecting ring 62. Compared with the prior art, the utility model has the following advantages: 1. The spray arm and the motor are connected by a transmission shaft, and the motor drives the spray arm to realize forward and reverse rotation. When the motor rotates, the spray arm rotates, and when the motor is powered off, the spray arm also stops rotating. The structure is simple, and high or low water pressure does not affect the rotation speed of the spray arm. 2. The spray hole of the spray arm is designed with a comprehensive balance, eliminating or weakening the power hole, reducing the ineffective loss of water pressure and water volume. 3. The spray hole does not need to spray in a certain direction, so the placement of tableware does not need strict, standardized, and targeted control. The motor drives the spray arm to rotate, making the spray force greater and effectively improving the cleaning effect. 4. By providing a connecting ring with an inner hole at the lower end of the first sleeve and connecting it to the upper end of the transmission shaft, the length of the transmission shaft is effectively shortened, the loss of motor power is reduced, and the transmission efficiency of the motor shaft is higher.

[0026] Specifically, the upper end of the transmission shaft 52 is polygonal, and the inner hole 63 of the connecting ring 62 has the same shape as the upper end of the transmission shaft 52. Preferably, the upper end of the transmission shaft 52 is hexagonal, and the inner hole 63 of the connecting ring 62 is also hexagonal. During installation, the inner hole 63 of the connecting ring 62 of the first sleeve 61 is simply inserted into the upper end of the transmission shaft 52 to achieve the transmission connection between the connecting ring 62 and the upper end of the transmission shaft 52, making both installation and removal simple and convenient.

[0027] Furthermore, the connecting ring 62 is provided with three connecting ribs 64, one end of which is fixedly connected to the connecting ring 62, and the other end of which is fixedly connected to the side wall of the first sleeve 61. After entering the first sleeve 61, the water in the water outlet pipe 4 can pass through the through holes between the three connecting ribs 64 and enter the spray arm 6, where it is sprayed out to clean the dishes in the dishwasher.

[0028] More specifically, a second sleeve 7 is disposed between the outlet pipe 4 and the first sleeve 61. The upper end of the second sleeve 7 is connected to the lower end of the first sleeve 61, and the lower end of the second sleeve 7 is connected to the upper end of the outlet pipe 4. The second sleeve 7 is provided with a positioning ring 71, which allows the drive shaft 52 to pass through and positions the drive shaft 52. The positioning ring 71 is provided with three positioning ribs 73. One end of the positioning rib 73 is fixedly connected to the positioning ring 71, and the other end is fixedly connected to the side wall of the second sleeve 7. Once water in the outlet pipe 4 enters the second sleeve 7, it can enter the first sleeve 61 through the through-holes between the three positioning ribs 73. Once the drive shaft 52 is installed through the circular hole 72 of the positioning ring 71, it prevents radial tilt, facilitating the insertion of the inner hole 63 of the connecting ring 62 of the first sleeve 61 into the upper end of the drive shaft 52.

[0029] In addition, the transmission shaft 52 has a stepped portion 521 located below the positioning ring 71. After the second sleeve 7 is fixed, the positioning ring 71 limits the stepped portion 521 to prevent the transmission shaft 52 from falling off the rotating shaft 51 of the motor 5.

[0030] Preferably, the dishwasher is further provided with a bracket 8 for fixing the motor 5 , and the body 1 is provided with a positioning column 11 , and the bracket 8 is fixed to the positioning column 11 by screws.

[0031] The above are only 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 principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A dishwasher comprising a body, a water pump, a water distributor, a water outlet pipe, a motor, and a spray arm, wherein the water pump, water distributor, and motor are fixed to the body, the water outlet of the water pump is connected to the water inlet of the water distributor, the water outlet of the water distributor is connected to one end of the water outlet pipe, and the spray arm is connected to the rotating shaft of the motor and is driven to rotate by the rotating shaft of the motor, characterized in that: The spray arm is provided with a first sleeve extending downward and connected to the water outlet pipe, the lower end of the first sleeve is provided with a connecting ring with an inner hole, a transmission shaft is provided between the connecting ring and the rotating shaft, the lower end of the transmission shaft is connected to the rotating shaft, and the upper end of the transmission shaft extends into the inner hole of the connecting ring and is connected to the connecting ring.

2. A dishwasher according to claim 1, characterized in that: The upper end of the transmission shaft is polygonal, and the inner hole of the connecting ring has the same shape as the upper end of the transmission shaft.

3. A dishwasher according to claim 2, characterized in that: The upper end of the transmission shaft is hexagonal, and the inner hole of the connecting ring is correspondingly hexagonal.

4. The dishwasher according to claim 1, characterized in that: The connecting ring is provided with a plurality of connecting ribs, one end of the connecting rib is fixedly connected to the connecting ring, and the other end of the connecting rib is fixedly connected to the side wall of the first sleeve.

5. The dishwasher according to claim 1, characterized in that: A second sleeve is provided between the water outlet pipe and the first sleeve, the upper end of the second sleeve is connected to the lower end of the first sleeve, and the lower end of the second sleeve is connected to the upper end of the water outlet pipe.

6. The dishwasher according to claim 5, characterized in that: The second sleeve is provided with a positioning ring which allows the transmission shaft to pass through and positions the transmission shaft.

7. The dishwasher according to claim 6, characterized in that: The positioning ring is provided with a plurality of positioning ribs, one end of the positioning rib is fixedly connected to the positioning ring, and the other end of the positioning rib is fixedly connected to the side wall of the second sleeve.

8. The dishwasher according to claim 6, characterized in that: The transmission shaft is provided with a stepped portion, which is located at the lower side of the positioning ring.

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