Inner water pipe structure for cleaning machine and cleaning machine

Abstract

The utility model discloses an inner water pipe structure for a cleaning machine, which comprises an inner water pipe (1), the inner water pipe (1) is provided with a second pipe part (12) extending from bottom to top along the flowing direction of water flow, the inner water pipe structure is characterized in that a guide plate (2) is rotatably connected in the second pipe part (12), and a limiting block (121) corresponding to the guide plate (2) is convexly arranged on the inner wall of the second pipe part (12); in the first state, the flow guide plate (2) turns over upwards under the action of water flow; and in the second state, the flow guide plate (2) falls under the action of gravity and is placed above the corresponding limiting block (121), so that the flow guide plate (2) gradually inclines downwards from the inner wall of the second pipe part (12) inwards. The utility model further discloses a cleaning machine applying the inner water pipe structure. Compared with the prior art, the structure is simple, and residual water in the inner water pipe can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of kitchen equipment technology, specifically to an internal water pipe structure for a cleaning machine and the cleaning machine itself. Background Technology

[0002] For countertop and cabinet dishwashers, due to their large washing space, they are generally designed with three spray arms: top, middle, and bottom, in order to achieve better washing results. The middle and top spray arms are supplied with water through an inner water pipe that extends upward close to the inner wall of the washing chamber.

[0003] After a dishwasher finishes washing, dishes often need to be dried to prevent bacterial growth. If residual water inside the cavity and components is not effectively removed, it will cause unpleasant odors to develop over time, affecting the customer's user experience. For details, please refer to Chinese Patent Application No. CN 201811068318.8, "A Dishwasher".

[0004] For internal water pipes, the internal space is relatively enclosed, and since internal water pipes are usually made of PP material, the surface tension of water will cause some water droplets to adhere to the wall surface of the internal water pipe. To achieve zero residual water inside, the commonly used methods are:

[0005] First, the internal water pipes are dried by controlling the timing of the addition of rinsing agent. However, the rinsing agent contains chemical components that can easily remain on the surface of the tableware, affecting the health of users.

[0006] Secondly, the water absorbs the residual water in the inner water pipe through water-absorbing minerals. However, the water-absorbing minerals are disposable and need to be replaced after a period of time, which is costly. In addition, the whole machine is heavy and not easy to move.

[0007] Third, a high-power heating and drying device is used to dry the inner water pipes. However, high-power heating and drying devices are more energy-efficient and require more electricity to dry the same washing scenario. Utility Model Content

[0008] The first technical problem to be solved by this utility model is to provide an inner water pipe structure for a cleaning machine that is simple in structure and can reduce the residual water in the inner water pipe, in light of the current state of the technology.

[0009] The second technical problem to be solved by this utility model is to provide a cleaning machine with the above-mentioned internal water pipe structure.

[0010] The technical solution adopted by this utility model to solve the first technical problem mentioned above is: an inner water pipe structure for a cleaning machine, including an inner water pipe, the inner water pipe having a second pipe section extending from bottom to top along the flow direction of water flow, characterized in that: a guide plate is rotatably connected inside the second pipe section, and a limiting block corresponding to the guide plate is protruding on the inner wall of the second pipe section.

[0011] The aforementioned internal water pipe structure has at least two states:

[0012] In the first state, the guide plate flips upward under the action of water flow so that the extension direction of the guide plate is consistent with the flow direction of the water flow;

[0013] In the second state, the guide plate falls under the action of gravity and rests above the corresponding limiting block, so that the guide plate gradually tilts downward from the inner wall of the second tube.

[0014] To further reduce the impact of the guide plate on hydraulic performance and reduce pipe loss, in the first state, the guide plate is tightly attached to the inner wall of the second pipe section.

[0015] In order to facilitate the convergence and return of the water flow, in the second state, the tilt angle of the guide plate is 30 to 60°.

[0016] To ensure that the water droplets in the second pipe converge in the middle area and fall back uniformly, the guide plates are arranged symmetrically in two rows on the left and right. In each row, the guide plates are arranged at intervals along the vertical direction and sandwiched between the front and rear side walls inside the second pipe.

[0017] In order to achieve the hinge connection of the guide plate inside the second tube, both the front and rear sides of the guide plate connection end have a rotating shaft extending in the front-rear direction, which is rotatably mounted on the inner wall of the second tube.

[0018] To facilitate the installation and rotation of the shaft, the edge of the shaft end is chamfered.

[0019] In order to limit the extreme position of the guide plate's fall and improve the stability of this state by means of the friction between the two, a limiting groove corresponding to the limiting block is opened at the bottom of the free end of the guide plate. In the second state, the limiting block is inserted into the limiting groove.

[0020] To avoid the limiting blocks affecting the normal flow of water, there are two limiting grooves, which are located on the front and rear sides of the guide plate, respectively.

[0021] In order to guide the remaining water in the third pipe section, the inner water pipe also has a third pipe section extending forward from the top of the second pipe section, and the bottom wall inside the third pipe section is provided with guide ribs extending in the front-back direction.

[0022] The technical solution adopted by this utility model to solve the second technical problem mentioned above is: a cleaning machine, characterized in that: it applies the above-mentioned internal water pipe structure.

[0023] Compared with the prior art, the advantages of this utility model are as follows: By rotating and connecting a guide plate inside the second pipe section of the inner water pipe, and setting a limiting block corresponding to the guide plate on the inner wall of the second pipe section, the guide plate flips upward under the action of water flow during cleaning, so that the extension direction of the guide plate is consistent with the flow direction of the water flow, thus avoiding affecting the normal flow of water; when cleaning is finished, the guide plate falls under the action of gravity and rests above the corresponding limiting block, so that the guide plate gradually tilts downward from the inner wall of the second pipe section. The tilted guide plate will collect small water droplets on the inner wall of the second pipe section, and after collecting a certain amount, it will drip downward, solving the problem that water droplets cannot gather. This can reduce the residual water in the inner water pipe and has a simple structure. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the inner water pipe structure in the first state in an embodiment of the cleaning machine of this utility model;

[0025] Figure 2 for Figure 1 A cross-sectional view;

[0026] Figure 3 for Figure 1 A longitudinal sectional view;

[0027] Figure 4 for Figure 3 Longitudinal sectional view of the internal water pipe structure after switching to the second state;

[0028] Figure 5 This is a three-dimensional structural diagram of the guide plate in an embodiment of the cleaning machine of this utility model. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0030] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0031] like Figures 1 to 5 The image shows a preferred embodiment of the cleaning machine with an internal water pipe structure according to this utility model. The internal water pipe structure includes an internal water pipe 1 and a guide plate 2.

[0032] The inner water pipe 1 includes a first pipe section 11 extending from front to back along the water flow direction, a second pipe section 12 extending upward from the rear end of the first pipe section 11, and a third pipe section 13 extending forward from the top end of the second pipe section 12. The inlet end of the first pipe section 11 is used to connect to the water pump of the cleaning machine, and the outlet end of the third pipe section 13 is used to connect to the top spray arm of the cleaning machine. This is the conventional structure of the cleaning machine, and will not be described in detail here.

[0033] In this embodiment, the side walls on both the front and rear sides of the second tube 12 are provided with two rows of symmetrically arranged limiting blocks 121. In each row of limiting blocks 121, each limiting block 121 is arranged at intervals in the vertical direction. The bottom wall of the third tube 13 is provided with guide ribs 131 extending in the front and rear direction.

[0034] The guide plates 2 are symmetrically arranged in two rows on the left and right sides of the second pipe section 12. In each row of guide plates 2, each guide plate 2 is arranged vertically at intervals and sandwiched between the front and rear side walls inside the second pipe section 12, and each guide plate 2 is rotatably connected inside the second pipe section 12. Specifically, the front and rear sides of the connecting end of the guide plate 2 have a rotating shaft 21 extending in the front and rear direction. The rotating shaft 21 is rotatably mounted on the inner wall of the second pipe section 12. In this embodiment, the edge of the end of the rotating shaft 21 has a chamfer to facilitate the installation and rotation of the rotating shaft 21. The left and right sides of the bottom of the free end of the guide plate 2 are provided with limiting grooves 22 corresponding to the aforementioned limiting blocks 121.

[0035] The aforementioned internal water pipe structure has at least two states:

[0036] In the first state, such as Figure 3 As shown, the guide plate 2 flips upward under the action of water flow so that the extension direction of the guide plate 2 is consistent with the flow direction of water flow; at this time, the guide plate 2 is arranged vertically and closely attached to the inner wall of the second pipe section 12, which can reduce the influence of the guide plate 2 on hydraulic performance and reduce pipe loss;

[0037] In the second state, such as Figure 4 As shown, the guide plate 2 falls under the action of gravity and rests above the corresponding limiting block 121, so that the guide plate 2 gradually tilts downward from the inner wall of the second pipe section 12. At this time, the tilt angle of the guide plate 2 is 30 to 60°, which facilitates the water flow to be gathered in the area between the two rows of guide plates 2 and then fall back. At the same time, the limiting block 121 is inserted in the limiting groove 22 to prevent the guide plate 2 from falling further and to improve the stability of this state by means of the friction between the two.

[0038] The working principle of this embodiment is as follows:

[0039] (1) When cleaning begins, the water pump of the cleaning machine pumps water into the inner water pipe 1. The upward force of the water flow will push up each guide plate 2, causing each guide plate 2 to flip upward until it is tightly attached to the inner wall of the second pipe section 12. At this time, if Figure 3 As shown, the inner water pipe structure is in the first state. Water entering the inner water pipe 1 can flow along the first pipe section 11, the second pipe section 12 and the third pipe section 13 in sequence and be transported to the corresponding spray arm. Since each guide plate 2 is in close contact with the inner wall of the second pipe section 12, it will not affect the normal flow of water.

[0040] (2) After cleaning, the guide plate 2 loses the support of the water flow and falls under the action of gravity until it abuts against the limit block 121. At this time, if Figure 4 As shown, the inner water pipe structure is in the second state. Each guide plate 2 gradually tilts downward from the inner wall of the second pipe section 12. In this way, the residual water in the third pipe section 13 will gather around the guide rib 131 and enter the second pipe section 12 along the guide rib 131. The residual water in the second pipe section 12 falls back under the action of gravity. The tilted guide plates 2 will collect the small water droplets on the inner wall of the second pipe section 12. After a certain amount is collected, it drips down into the first pipe section 11 and is discharged. This solves the problem that the water droplets could not gather. Combined with the high-efficiency and energy-saving PTC hot air drying technology, the residual water in the inner water pipe 1 can be effectively removed, and the structure is simple.

Claims

1. An inner water pipe structure for a cleaning machine, comprising an inner water pipe (1) having a second pipe portion (12) extending from bottom to top along the flow direction of water, characterized in that: The second pipe section (12) is rotatably connected to a guide plate (2), and a limiting block (121) corresponding to the guide plate (2) is protruding on the inner wall of the second pipe section (12); The aforementioned internal water pipe structure has at least two states: In the first state, the guide plate (2) flips upward under the action of water flow so that the extension direction of the guide plate (2) is consistent with the flow direction of the water flow; In the second state, the guide plate (2) falls under the action of gravity and rests above the corresponding limiting block (121), so that the guide plate (2) gradually tilts downward from the inner wall of the second tube (12).

2. The internal water pipe structure according to claim 1, characterized in that: In the first state, the guide plate (2) is in close contact with the inner wall of the second pipe (12).

3. The internal water pipe structure according to claim 1, characterized in that: In the second state, the tilt angle of the guide plate (2) is 30 to 60°.

4. The internal water pipe structure according to claim 1, characterized in that: The guide plates (2) are arranged symmetrically in two rows on the left and right. In each row of guide plates (2), each guide plate (2) is arranged at intervals in the vertical direction and sandwiched between the front and rear side walls inside the second pipe section (12).

5. The internal water pipe structure according to claim 4, characterized in that: The guide plate (2) has a rotating shaft (21) extending in the front and rear directions on both sides of the connecting end. The rotating shaft (21) is rotatably mounted on the inner wall of the second pipe (12).

6. The internal water pipe structure according to claim 5, characterized in that: The edge of the end of the shaft (21) has a chamfer.

7. The internal water pipe structure according to claim 1, characterized in that: The bottom of the free end of the guide plate (2) is provided with a limiting groove (22) corresponding to the limiting block (121). In the second state, the limiting block (121) is inserted into the limiting groove (22).

8. The internal water pipe structure according to claim 7, characterized in that: There are two limiting grooves (22), which are located on the front and rear sides of the guide plate (2), respectively.

9. The internal water pipe structure according to any one of claims 1 to 8, characterized in that: The inner water pipe (1) also has a third pipe section (13) extending forward from the top of the second pipe section (12), and a guide rib (131) extending in the front-back direction is provided on the bottom wall inside the third pipe section (13).

10. A cleaning machine, characterized in that: The application has the internal water pipe structure as described in any one of claims 1 to 9.

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