Inner water pipe structure for cleaning machine and cleaning machine

Abstract

The invention discloses an inner water pipe structure for a cleaning machine, which comprises an inner water pipe (1), the inner water pipe (1) comprises a main pipeline (11), a first branch pipeline (12) and a second branch pipeline (13), the first branch pipeline (12) and the second branch pipeline (13) are branched from the outlet end of the main pipeline (11), and the inner water pipe structure is characterized in that a baffle (2) is rotatably connected in the second branch pipeline (13); and the baffle (2) can fall under the action of gravity to close the second branch pipeline (13), and can turn upwards under the action of water flow to open the second branch pipeline (13). The invention further discloses a cleaning machine applying the inner water pipe structure. Compared with the prior art, the structure is simple, and self-adaptive switching of different flow channels in the inner water pipe can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of kitchen equipment, and in particular to an inner water pipe structure for a cleaning machine and the cleaning machine. Background Art

[0002] For desktop and cabinet dishwashers, since their washing space is large, in order to achieve a better washing effect, they are generally designed with three spray arms: top, middle and bottom. The middle spray arm and the top spray arm are supplied with water through an inner water pipe extending upward close to the inner wall of the washing chamber. When working, the washing pump transports water to the top, middle and bottom spray arms through pipes. The water is sprayed out from the top, middle and bottom spray arms and rinses the dishes before falling back into the water cup at the bottom of the dishwasher. The washing pump transports the fallen water to the top, middle and bottom spray arms again to complete a cycle.

[0003] When users place less tableware (the daily amount for a family of three), they often choose to place it on the upper layer. However, currently the water flow in the internal water pipe usually diverts a portion to the top spray arm, reducing the cleaning head of the middle spray arm and resulting in low cleaning efficiency.

[0004] To this end, the Chinese patent "Energy-saving Dishwasher" with patent application number CN201611232345.5 discloses a structure, which includes a cavity for accommodating tableware and providing a cleaning space, a spray system for spraying water to clean the tableware, and a pump body for pumping water and supplying water to the spray system; the spray system is arranged in the cavity; the water pumping end of the pump body is connected to the cavity, and the water supply end is connected to the spray system; the spray system includes an inner water pipe and two or more spray devices, and the two or more spray devices are respectively arranged on the inner water pipe; the water supply end of the pump body is connected to a water distribution device, and the water distribution device is provided with two or more water outlets corresponding to the two or more spray devices, and the spray device is connected to the corresponding water outlets; when working, the water distribution device conducts one or more water outlets according to instructions, so that one or more spray devices perform cleaning work.

[0005] However, in the above solution, an additional water distribution device needs to be added, and an independent flow channel needs to be set in the inner water pipe to connect the middle spray arm and the top spray arm respectively, which has a complex structure and high cost. Summary of the invention

[0006] The first technical problem to be solved by the present invention is to provide an inner water pipe structure for a cleaning machine which has a simple structure and can realize adaptive switching of different flow channels in the inner water pipe in view of the current status of the prior art.

[0007] The second technical problem to be solved by the present invention is to provide a cleaning machine using the above-mentioned inner water pipe structure.

[0008] The technical solution adopted by the present invention to solve the above-mentioned first technical problem is: an inner water pipe structure for a cleaning machine, comprising an inner water pipe, the inner water pipe comprising a main pipe and a first branch pipe and a second branch pipe branched from the outlet end of the main pipe, characterized in that a baffle is rotatably connected in the second branch pipe, the baffle can fall under the action of gravity to close the second branch pipe, and can flip upward under the action of water flow to open the second branch pipe;

[0009] When the water inlet pressure of the main pipeline is less than the preset pressure, the baffle closes the second branch pipeline so that all the water flow in the main pipeline is supplied to the first branch pipeline;

[0010] When the water inlet pressure of the main pipeline reaches a preset pressure, the baffle opens the second branch pipeline and the opening degree of the baffle is determined by the water inlet pressure of the main pipeline, so that the water flow in the main pipeline is supplied to the first branch pipeline and the second branch pipeline respectively.

[0011] To facilitate the installation of the baffle, the second branch pipe has a vertical section extending in the vertical direction, and the baffle is arranged in the vertical section of the second branch pipe. When the water inlet pressure of the main pipe is less than the preset pressure, the baffle is laterally blocked in the vertical section of the second branch pipe to close the second branch pipe.

[0012] In order to reduce the influence of the baffle on the hydraulic performance and reduce pipe loss, the second branch pipe has a first side and a second side arranged opposite to each other in the lateral direction, and the inner side wall of the first side of the second branch pipe has a mounting groove. The baffle has a first end and a second end arranged opposite to each other in the length direction, and the first end of the baffle is hinged on the side wall inside the mounting groove. When the baffle is flipped upward to the extreme position, the baffle is hidden in the mounting groove.

[0013] In order to further reduce the influence of the baffle on the hydraulic performance and reduce pipe loss, when the baffle is flipped upward to the extreme position, the bottom surface of the baffle is flush with the inner wall of the first side of the second branch pipeline.

[0014] In order to realize the hinge connection of the baffle inside the installation groove, both left and right sides of the first end of the baffle have a rotating shaft extending in the left-right direction, and the rotating shaft is rotatably installed on the side wall inside the installation groove.

[0015] In order to facilitate the installation and rotation of the rotating shaft, the edge of the end of the rotating shaft is chamfered.

[0016] In order to limit the extreme position of the baffle falling, a first limiting boss is provided on the inner wall of the second side of the second branch pipeline. When the baffle falls to the extreme position, the first limiting boss is limited to the second end of the baffle to prevent the baffle from continuing to fall.

[0017] In order to limit the first limiting boss to the front end of the baffle and improve the stability of this state by means of the friction force between the two, the end face of the second end of the baffle is in the shape of a convex circular arc, and the first limiting boss has a first groove at one end facing the baffle, and the inner wall of the first groove is in the shape of a concave circular arc. When the baffle falls to the extreme position, the second end of the baffle is inserted into the first groove and the relative surfaces of the two fit together.

[0018] In order to provide a guiding effect and increase the friction between the baffle and the first limiting boss, a mating groove is provided on the end face of the second end of the baffle in the vertical direction, and a first mating protrusion corresponding to the mating groove is provided on the inner wall of the first groove. When the baffle falls to the extreme position, the first mating protrusion is inserted in the corresponding mating groove.

[0019] In order to further ensure that the first limiting boss is limited to the front end of the baffle, a limiting groove is opened at the bottom of the second end of the baffle, and a limiting protrusion corresponding to the limiting groove is convexly provided on the inner wall of the first groove. When the baffle falls to the extreme position, the limiting protrusion is inserted into the corresponding limiting groove.

[0020] In order to limit the upper limit position of the baffle, a second limiting boss is provided on the top wall inside the mounting groove. When the baffle is flipped upward to the upper limit position, the second limiting boss is limited to the second end of the baffle to prevent the baffle from further flipping.

[0021] In order to limit the second limiting boss to the front end of the baffle and improve the stability of this state by means of the friction force between the two, the end face of the second end of the baffle is in the shape of a convex circular arc, and the second limiting boss has a second groove at one end facing the baffle, and the inner wall of the second groove is in the shape of a concave circular arc. When the baffle is flipped upward to the extreme position, the second end of the baffle is inserted into the second groove and the opposing surfaces of the two fit together.

[0022] In order to provide a guiding effect and increase the friction between the baffle and the second limiting boss, a mating groove is provided on the end face of the second end of the baffle in the vertical direction, and a second mating protrusion corresponding to the mating groove is provided on the inner wall of the second groove. When the baffle is flipped upward to the extreme position, the second mating protrusion is inserted in the corresponding mating groove.

[0023] The technical solution adopted by the present invention to solve the above second technical problem is: a cleaning machine, characterized in that: the above inner water pipe structure is applied.

[0024] Compared with the prior art, the advantages of the present invention are: it adopts a simple baffle structure scheme. On the one hand, the baffle is driven to open and close the second branch pipeline according to different flow rates under different working conditions, thereby realizing adaptive switching of different flow channels in the inner water pipe. When the flow rate is large, the second branch pipeline is opened to realize the joint cleaning of the upper and top layers. When the flow rate is small, the second branch pipeline is closed to strengthen the cleaning of the upper layer, thereby improving the cleaning efficiency and meeting the purpose of different user usage scenarios. On the other hand, the opening of the baffle is determined by the water inlet pressure of the main pipeline. The larger the flow rate, the larger the opening of the baffle, thereby realizing adaptive adjustment of the water flow area of ​​the second branch pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the inner water pipe structure (the baffle falls to the limit position) in the embodiment of the cleaning machine of the present invention;

[0026] Figure 2 for Figure 1 A longitudinal cross-sectional view of

[0027] Figure 3 for Figure 1 A longitudinal cross-sectional view of the middle baffle after it is flipped upward to the extreme position;

[0028] Figure 4 It is a schematic diagram of the three-dimensional structure of the baffle in the embodiment of the cleaning machine of the present invention. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below with reference to the accompanying drawings.

[0030] In the specification and claims of the present invention, terms indicating directions, such as "front", "rear", "up", "down", "left", "right", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as explanations and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0031] like Figures 1 to 4 FIG. 1 is a preferred embodiment of a cleaning machine with an inner water pipe structure according to the present invention. The inner water pipe structure includes an inner water pipe 1 and a baffle 2.

[0032] The inner water pipe 1 is in an E-shape as a whole, including a main pipeline 11 and a first branch pipeline 12 and a second branch pipeline 13 branching from the outlet end of the main pipeline 11. Specifically, the main pipeline 11 includes a horizontal section extending from front to back and a vertical section extending upward from the rear end of the horizontal section. The inlet end of the main pipeline 11 is used to connect the water pump of the cleaning machine; the first branch pipeline 12 is connected to the side of the top of the main pipeline 11 and extends from back to front. The outlet end of the first branch pipeline 12 is used to connect the middle spray arm of the cleaning machine; the second branch pipeline 13 is connected to the top of the top of the main pipeline 11, including a vertical section extending from bottom to top and a horizontal section extending forward from the top of the vertical section. The outlet end of the second branch pipeline 13 is used to connect the top spray arm of the cleaning machine. This is a conventional structure of a cleaning machine and will not be repeated here.

[0033] In this embodiment, a mounting groove 131 is provided on the inner side wall of the rear side of the vertical section of the second branch pipe 13 ; a first limiting boss 132 is provided on the inner side wall of the front side of the vertical section of the second branch pipe 13 ; and a second limiting boss 133 is provided on the top wall inside the mounting groove 131 .

[0034] Specifically, the rear end of the first limiting boss 132 has a first groove 1321, and the inner wall of the first groove 1321 is in an inwardly concave arc shape; a plurality of first pairing protrusions 1322 arranged at intervals along the left-right direction and corresponding to the pairing grooves 22 described below are convexly provided on the inner wall of the first groove 1321; a plurality of limiting protrusions 1323 arranged at intervals along the left-right direction are convexly provided on the lower part of the inner wall of the first groove 1321;

[0035] The second limiting boss 133 has a second groove 1331 at its bottom end, and the inner wall of the second groove 1331 is in the shape of an inwardly concave arc; a plurality of second insertion protrusions 1332 are convexly arranged on the inner wall of the second groove 1331 at intervals along the left-right direction and correspond one-to-one to the insertion grooves 22 described below.

[0036] The baffle 2 is rotatably connected in the vertical section of the second branch pipeline 13 .

[0037] Specifically, both left and right sides of the rear end of the baffle 2 have a rotating shaft 21 extending in the left-right direction, and the rotating shaft 21 can be rotatably mounted on the side wall inside the mounting groove 131, so as to realize the hinge connection of the baffle 2 inside the mounting groove 131; 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;

[0038] The end face of the front end of the baffle 2 is in an outwardly convex arc shape; a plurality of insertion grooves 22 arranged at intervals along the left and right directions are provided on the end face of the front end of the baffle 2 in the vertical direction; a plurality of limiting grooves 23 arranged at intervals along the left and right directions and corresponding one by one to the above-mentioned limiting protrusions 1323 are provided at the bottom of the front end of the baffle 2.

[0039] The baffle 2 can fall down under the action of gravity to close the second branch pipe 13, and can flip upward under the action of water flow to open the second branch pipe 13:

[0040] When the water inlet pressure of the main pipeline 11 is less than the preset pressure, Figure 2 As shown, the baffle 2 is horizontally blocked in the vertical section of the second branch pipeline 13 and closes the second branch pipeline 13, so that the water flow in the main pipeline 11 is completely supplied to the first branch pipeline 12; at this time, the front end of the baffle 2 is inserted in the first groove 1321 and the opposite surfaces of the two are in contact with each other, and the first pair of insertion protrusions 1322 are inserted in the corresponding pair of insertion grooves 22, so that the first limiting boss 132 is limited to the front end of the baffle 2 to prevent the baffle 2 from continuing to fall and improve the stability of this state by means of the friction between the two. At the same time, the limiting protrusion 1323 is inserted in the corresponding limiting groove 23 to further ensure that the first limiting boss 132 is limited to the front end of the baffle 2 to prevent the baffle 2 from continuing to fall;

[0041] When the water inlet pressure of the main pipe 11 reaches the preset pressure, Figure 3 As shown, the baffle 2 releases the obstruction to the vertical section of the second branch pipeline 13 and opens the second branch pipeline 13, so that the water flow in the main pipeline 11 is respectively supplied to the first branch pipeline 12 and the second branch pipeline 13; at this time, the opening of the baffle 2 is determined by the water inlet pressure of the main pipeline 11, and when the baffle 2 is flipped upward to the extreme position, the baffle 2 is hidden in the installation groove 131, and the bottom surface of the baffle 2 is flush with the inner side wall of the rear side of the vertical section of the second branch pipeline 13, reducing the influence of the baffle 2 on the hydraulic performance and reducing the pipe loss. At the same time, the front end of the baffle 2 is inserted in the second groove 1331 and the opposite surfaces of the two are in contact with each other, and the second pair of insertion protrusions 1332 are inserted in the corresponding pair of insertion grooves 22, so that the second limiting boss 133 is limited at the front end of the baffle 2 to prevent the baffle 2 from continuing to flip over and use the friction between the two to improve the stability of this state.

[0042] The working principle of this embodiment is as follows:

[0043] (1) Before the motor of the cleaning machine water pump reaches a certain speed, the overall flow rate provided by the water pump is small, and the overall flow rate of the water flow in the inner water pipe 1 is slow. At this time, the water inlet pressure of the main pipeline 11 is less than the preset pressure, and the impact force of the water flow on the baffle 2 is small and insufficient to overcome the gravity of the baffle 2 itself and the friction between the baffle 2 and the inner wall of the inner water pipe 1. Therefore, Figure 2 As shown, the baffle 2 is horizontally blocked in the vertical section of the second branch pipe 13 and closes the second branch pipe 13, so that the water flow in the main pipe 11 is all supplied to the middle spray arm through the first branch pipe 12, and cannot be supplied to the top spray arm through the second branch pipe 13, thereby increasing the cleaning head of the middle spray arm, thereby improving the cleaning efficiency and reducing the cleaning time;

[0044] (2) When the motor of the cleaning machine water pump reaches a certain speed, the water pump provides a large overall flow rate, and the overall flow rate of the water flow in the inner water pipe 1 is fast. At this time, the water inlet pressure of the main line 11 reaches the preset pressure, and the impact force of the water flow on the baffle 2 is large, thereby overcoming the gravity of the baffle 2 and the friction between the baffle 2 and the inner wall of the inner water pipe 1, so that the baffle 2 flips upward. Therefore, Figure 3 As shown, the baffle 2 releases the obstruction of the vertical section of the second branch pipe 13 and opens the second branch pipe 13, so that the water flow in the main pipe 11 is supplied to the middle spray arm and the top spray arm through the first branch pipe 12 and the second branch pipe 13 respectively, thereby achieving comprehensive cleaning of the upper layer;

[0045] In the present application, a simple baffle structure scheme is adopted. On the one hand, the baffle 2 is driven to open and close the second branch pipe 13 according to different flow rates under different working conditions, so as to realize adaptive switching of different flow channels in the inner water pipe 1. When the flow rate is large, the second branch pipe 13 is opened to realize the joint cleaning of the upper layer and the top layer. When the flow rate is small, the second branch pipe 13 is closed to strengthen the cleaning of the upper layer, so as to improve the cleaning efficiency and meet the purpose of different user usage scenarios. On the other hand, the opening of the baffle 2 is determined by the water inlet pressure of the main pipe 11. The larger the flow rate, the larger the opening of the baffle 2, thereby realizing adaptive adjustment of the water flow area of ​​the second branch pipe 13.

Claims

1. An inner water pipe structure for a cleaning machine, comprising an inner water pipe (1), the inner water pipe (1) comprising a main pipe (11) and a first branch pipe (12) and a second branch pipe (13) branching from an outlet end of the main pipe (11), characterized in that: A baffle (2) is rotatably connected inside the second branch pipeline (13), and the baffle (2) can fall down under the action of gravity to close the second branch pipeline (13), and can flip upward under the action of water flow to open the second branch pipeline (13); When the water inlet pressure of the main pipeline (11) is less than a preset pressure, the baffle (2) closes the second branch pipeline (13) so that all the water flow in the main pipeline (11) is supplied to the first branch pipeline (12); When the water inlet pressure of the main pipeline (11) reaches a preset pressure, the baffle (2) opens the second branch pipeline (13) and the opening degree of the baffle (2) is determined by the water inlet pressure of the main pipeline (11), so that the water flow in the main pipeline (11) is supplied to the first branch pipeline (12) and the second branch pipeline (13) respectively.

2. The inner water pipe structure according to claim 1, characterized in that: The second branch pipeline (13) has a vertical section extending in a vertical direction, and the baffle (2) is arranged in the vertical section of the second branch pipeline (13). When the water inlet pressure of the main pipeline (11) is less than a preset pressure, the baffle (2) is laterally blocked in the vertical section of the second branch pipeline (13) to close the second branch pipeline (13).

3. The inner water pipe structure according to claim 2, characterized in that: The second branch pipe (13) has a first side and a second side arranged opposite to each other in a transverse direction, and an inner side wall of the first side of the second branch pipe (13) has a mounting groove (131). The baffle plate (2) has a first end and a second end arranged opposite to each other in a length direction, and the first end of the baffle plate (2) is hinged on the side wall inside the mounting groove (131). When the baffle plate (2) is flipped upward to an extreme position, the baffle plate (2) is hidden in the mounting groove (131).

4. The inner water pipe structure according to claim 3, characterized in that: When the baffle (2) is flipped upward to the extreme position, the bottom surface of the baffle (2) is flush with the inner side wall of the first side of the second branch pipeline (13).

5. The inner water pipe structure according to claim 3, characterized in that: The left and right sides of the first end of the baffle (2) are each provided with a rotating shaft (21) extending in the left-right direction, and the rotating shaft (21) is rotatably mounted on the side wall inside the mounting groove (131).

6. The inner water pipe structure according to claim 5, characterized in that: The edge of the end of the rotating shaft (21) is chamfered.

7. The inner water pipe structure according to any one of claims 3 to 6, characterized in that: A first limiting boss (132) is provided on the inner side wall of the second side of the second branch pipeline (13); when the baffle plate (2) falls to the limit position, the first limiting boss (132) is limited at the second end of the baffle plate (2) to prevent the baffle plate (2) from continuing to fall.

8. The inner water pipe structure according to claim 7, characterized in that: The end surface of the second end of the baffle (2) is in the shape of an outwardly convex arc, and the first limiting boss (132) has a first groove (1321) at one end facing the baffle (2), and the inner wall of the first groove (1321) is in the shape of an inwardly concave arc. When the baffle (2) falls to the extreme position, the second end of the baffle (2) is inserted into the first groove (1321) and the opposite surfaces of the two are in contact with each other.

9. The inner water pipe structure according to claim 8, characterized in that: A mating groove (22) is provided on the end surface of the second end of the baffle (2) in a vertical direction, and a first mating protrusion (1322) corresponding to the mating groove (22) is provided on the inner wall of the first groove (1321). When the baffle (2) falls to the extreme position, the first mating protrusion (1322) is inserted into the corresponding mating groove (22).

10. The inner water pipe structure according to claim 8, characterized in that: A limiting groove (23) is provided at the bottom of the second end of the baffle (2), and a limiting protrusion (1323) corresponding to the limiting groove (23) is provided on the inner wall of the first groove (1321); when the baffle (2) falls to the limit position, the limiting protrusion (1323) is inserted into the corresponding limiting groove (23).

11. The inner water pipe structure according to any one of claims 3 to 6, characterized in that: A second limiting boss (133) is provided on the top wall inside the mounting groove (131); when the baffle plate (2) is flipped upward to an extreme position, the second limiting boss (133) is limited at the second end of the baffle plate (2) to prevent the baffle plate (2) from further flipping.

12. The inner water pipe structure according to claim 11, characterized in that: The end surface of the second end of the baffle (2) is in the shape of an outwardly convex circular arc, and the second limiting boss (133) has a second groove (1331) at one end facing the baffle (2), and the inner wall of the second groove (1331) is in the shape of an inwardly concave circular arc. When the baffle (2) is flipped upward to the extreme position, the second end of the baffle (2) is inserted into the second groove (1331) and the opposite surfaces of the two are in contact with each other.

13. The inner water pipe structure according to claim 12, characterized in that: A mating groove (22) is provided on the end surface of the second end of the baffle (2) in a vertical direction, and a second mating protrusion (1332) corresponding to the mating groove (22) is provided on the inner wall of the second groove (1331). When the baffle (2) is flipped upward to the extreme position, the second mating protrusion (1332) is inserted into the corresponding mating groove (22).

14. A cleaning machine, characterized in that: The inner water pipe structure according to any one of claims 1 to 13 is used.

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