A sink-type dishwasher and an overflow control method

Abstract

The application discloses a sink type dish washing machine and an overflow control method. The sink type dish washing machine comprises a sink body, an overflow assembly, a drainage assembly and a control unit. An overflow port is arranged on the sink body. The overflow assembly is installed on the sink body and communicates with the overflow port. The drainage assembly is installed on the bottom of the sink body. The overflow assembly comprises a shell assembly, a swing assembly and a micro switch. An overflow channel is formed in the shell assembly. The swing assembly and the micro switch are arranged on the shell assembly. The swing assembly is at least partially located in the overflow channel. The swing assembly swings to open or close the micro switch. The control unit is electrically connected with the micro switch and the drainage assembly. The sink type dish washing machine can effectively prevent the water level from continuously rising to overflow to the end face of the dish washing machine or the cabinet under the abnormal condition of high water level, thereby avoiding damage to the dish washing machine or the cabinet of the user.

Description

Technical Field

[0001] This invention relates to the field of dishwasher technology, and more particularly to a sink-type dishwasher and an overflow control method. Background Technology

[0002] As a kitchen appliance that can wash both dishes and fruits and vegetables, a sink dishwasher typically requires different amounts of water for the dishwashing and fruit and vegetable washing modes. Therefore, an overflow outlet is usually installed at the top of the sink to prevent water from overflowing into the dishwasher or cabinet due to malfunction of the water inlet components or human error in adding water. The size of the overflow outlet is usually set according to the water intake capacity of the water inlet components to ensure that excess water will be discharged through the overflow outlet in case of malfunction of the water inlet components.

[0003] However, when considering the high water level problem in the sink, the above solutions usually drain excess water directly through the overflow outlet. If the water inlet components malfunction and the inlet water volume exceeds the overflow outlet's drainage capacity, the water level will continue to rise, overflowing to the sink end and even into the user's cabinet, causing damage to the dishwasher and the user's cabinet.

[0004] Meanwhile, when a sink dishwasher is used in sink mode, users usually use a tap to directly fill the sink with water. Due to the difference in water pressure in different users' homes, if a user forgets to turn off the tap temporarily, the water intake will be greater than the overflow outlet's drainage capacity, causing the water level to rise continuously and overflow to the sink end or even into the cabinet, damaging the dishwasher and the user's cabinet.

[0005] Therefore, as a solution to the above problems, accelerating the drainage of the sink dishwasher and establishing a feedback mechanism in the event of abnormal high water levels is the technical problem that this proposal aims to solve. Summary of the Invention

[0006] The present invention aims to at least partially solve one of the problems existing in the prior art. To this end, one object of the present invention is to provide a sink-type dishwasher that can effectively prevent water from continuously rising and overflowing into the dishwasher end face or cabinet in case of abnormal high water level, thereby avoiding damage to the dishwasher or user's cabinet.

[0007] The above objective is achieved through the following technical solution:

[0008] A sink-type dishwasher includes a sink body, an overflow assembly, a drain assembly, and a control unit. An overflow port is provided on the sink body. The overflow assembly is mounted on the sink body and communicates with the overflow port. The drain assembly is mounted on the bottom of the sink body. The overflow assembly includes a housing assembly, a swing assembly, and a micro switch. An overflow channel is formed within the housing assembly. The swing assembly and the micro switch are disposed on the housing assembly, with at least a portion of the swing assembly located within the overflow channel. The swing assembly swings to open or close the micro switch. The control unit is electrically connected to the micro switch and the drain assembly, respectively. The control unit controls the operation of the drain assembly according to the state of the micro switch.

[0009] In some embodiments, the oscillating assembly includes a baffle and a swing arm, wherein the baffle is disposed inside the housing assembly and at least partially located within the overflow channel, and the swing arm is disposed outside the housing assembly and connected to the baffle, and the micro switch is turned on or off by oscillating the swing arm.

[0010] In some embodiments, the baffle includes a baffle body, a mounting shaft disposed on one side of the baffle body, and a connecting shaft disposed at one end of the mounting shaft. A mounting hole is provided inside the housing assembly, and the mounting shaft is rotatably disposed within the mounting hole.

[0011] In some embodiments, a limiting groove is provided on one side of the mounting hole, and the baffle body is disposed in the limiting groove and swings within the angle range defined by the limiting groove.

[0012] In some embodiments, a pivot hole is provided on one side of the swing arm, and a limiting groove is provided on one side of the pivot hole. The pivot hole of the swing arm extends into the housing assembly and connects with the connecting pivot of the baffle, and the baffle body is locked in the limiting groove.

[0013] In some embodiments, a limiting rib is provided between the swing arm and the pivot hole, and the limiting rib is confined between the inner side of the housing assembly and the baffle body.

[0014] In some embodiments, the system also includes an overflow pipe, a main drain pipe, and an external drain pipe. The drainage assembly includes a drain valve and a drain pipe. The inlet of the drain valve is connected to the drain outlet at the bottom of the tank body, and the outlet is connected to the drain pipe. The outlet of the overflow pipe and the outlet of the drain pipe are respectively connected to the main drain pipe, and the main drain pipe is connected to the external drain pipe.

[0015] Another objective of this invention is to provide an overflow control method for a sink-type dishwasher, which can effectively prevent the water level from rising continuously and overflowing into the dishwasher end face or cabinet under abnormal high water level conditions, thereby avoiding damage to the dishwasher or the user's cabinet.

[0016] The above objective is achieved through the following technical solution:

[0017] An overflow control method for a sink-type dishwasher, applied to the sink-type dishwasher as described above, the control method comprising the following steps:

[0018] S1. Determine whether the micro switch has been triggered. If yes, proceed to step S2. If no, repeat step S1.

[0019] S2 controls the opening of the drainage component.

[0020] In some implementations, step S2 is followed by the following steps:

[0021] S3 triggers a high water level fault alarm.

[0022] In some implementations, step S2 is followed by the following steps:

[0023] S3, after the drainage component has been open for a preset time, control the drainage component to close.

[0024] S4. Determine whether the micro switch has been reset. If yes, do not provide a feedback signal and end the program. If no, proceed to step S5.

[0025] S5 controls the drainage component to open and provides a high water level warning.

[0026] Compared with the prior art, the present invention has at least the following beneficial effects:

[0027] 1. The present invention provides a sink-type dishwasher, which can effectively prevent water from continuously rising and overflowing into the dishwasher end face or cabinet in case of abnormal high water level, thereby avoiding damage to the dishwasher or user's cabinet.

[0028] 2. The overflow control method of the sink-type dishwasher of the present invention can effectively prevent the water level from rising continuously and overflowing into the end face of the dishwasher or the cabinet in case of abnormal high water level, so as to avoid damage to the dishwasher or the user's cabinet. Attached Figure Description

[0029] Figure 1 This is a three-dimensional schematic diagram of a sink dishwasher in an embodiment of the present invention;

[0030] Figure 2 This is another perspective view of the sink dishwasher in an embodiment of the present invention;

[0031] Figure 3 This is a schematic diagram of the structure of the sink dishwasher in an embodiment of the present invention;

[0032] Figure 4 This is an exploded view of the overflow component in an embodiment of the present invention;

[0033] Figure 5 This is a partial schematic diagram of the overflow component in an embodiment of the present invention;

[0034] Figure 6 This is a partial cross-sectional view of the overflow component in an embodiment of the present invention;

[0035] Figure 7 This is a three-dimensional schematic diagram of the swing arm in an embodiment of the present invention;

[0036] Figure 8 This is a three-dimensional schematic diagram of the baffle in an embodiment of the present invention;

[0037] Figure 9 This is a flowchart illustrating the overflow control method in Embodiment 2 of the present invention;

[0038] Figure 10 This is a flowchart illustrating the overflow control method in Embodiment 3 of the present invention. Detailed Implementation

[0039] The following embodiments illustrate the present invention, but the present invention is not limited to these embodiments. Modifications to the specific embodiments of the present invention or equivalent substitutions for some technical features, without departing from the spirit of the present invention, should all be covered within the scope of the technical solutions claimed in the present invention.

[0040] Example 1: As Figures 1 to 8 As shown, this embodiment provides a sink-type dishwasher, including a sink body 1, an overflow component 2, a drainage component 3, and a control unit. An overflow port 100 is provided on the sink body 1. In this embodiment, the sink body 1 is an upward-facing sink. The overflow port 100 is located in the upper middle part of the sink body 1. The overflow component 2 is installed on the sink body 1 and communicates with the overflow port 100. Preferably, the overflow component 2 is located in the upper middle part of the outer side of the sink body 1. The drainage component 3 is installed at the bottom of the sink body 1. The overflow component 2 includes a housing component 21, a swing component 22, and a micro switch 23. An overflow channel 210 is formed within the housing component 21. The swing component 22 and the micro switch 23 are located on the housing component 21, and the swing component 22 is at least partially located within the overflow channel 210. The swing component 22 swings to open or close the micro switch 23. The control unit is electrically connected to the micro switch 23 and the drainage component 3, respectively. The control unit controls the operation of the drainage component 3 according to the state of the micro switch 23.

[0041] This embodiment of a sink-type dishwasher can effectively prevent water from continuously rising and overflowing into the dishwasher end face or cabinet in case of abnormal high water levels, thus avoiding damage to the dishwasher or user's cabinet.

[0042] Specifically, a swing component 22 is installed in the overflow channel 210 of the sink dishwasher to sense the overflow situation. A microswitch 23, working in conjunction with the swing component 22, triggers a feedback action to indicate a high water level overflow. This controls the drain component 3 at the bottom of the sink dishwasher to actively drain water, accelerating drainage in case of an abnormal high water level. This effectively prevents the water level from continuously rising and overflowing into the dishwasher's end face or cabinet, avoiding damage to the dishwasher or the user's cabinet. More specifically, the swing component 22, which swings in conjunction with the overflow water flow, is installed in the overflow channel 210 of the sink dishwasher to trigger the microswitch 23 to sense the overflow signal. When continuous overflow is detected, the triggered microswitch 23 provides overflow feedback, thereby controlling the drain component 3 at the bottom of the sink dishwasher to actively drain water, preventing the overflow water level from continuously rising.

[0043] In this embodiment, the swing assembly 22 includes a baffle 4 and a swing arm 5. The baffle 4 is disposed inside the housing assembly 21 and at least partially located within the overflow channel 210. The swing arm 5 is disposed outside the housing assembly 21 and connected to the baffle 4. The swing arm 5 swings to open or close the micro switch 23. By providing a baffle 4 that can swing with the overflowing water in the overflow channel 210, and a swing arm 5 that is linked to the baffle 4, the swing arm 5 can trigger the micro switch 23 after swinging, thereby driving the micro switch 23 to close, feeding back a high water level overflow signal, and then driving the drainage assembly 3 at the bottom of the sink dishwasher to actively drain water, accelerating the overflow of abnormally high water levels, and preventing the water level from continuously rising and overflowing into the dishwasher or user's cabinet. Preferably, the baffle 4 and the swing arm 5 are connected as a single unit, so the swing arm 5 can swing with the baffle 4 and reset with the baffle 4, thereby realizing the triggering and resetting of the micro switch 23.

[0044] In this embodiment, the baffle 4 includes a baffle body 41, a mounting shaft 42 disposed on one side of the baffle body 41, and a connecting shaft 43 disposed at one end of the mounting shaft 42. A mounting hole 211 is provided inside the housing assembly 21, and the mounting shaft 42 is rotatably disposed within the mounting hole 211. Its structure is simple, reasonably and ingeniously designed, and can reliably achieve a rotatable connection between the baffle 4 and the housing assembly 21. In this embodiment, the baffle 4 is provided with a baffle body 41 and a shaft disposed at the end of the baffle body 41. The shaft is arranged in a gradient structure, with the lower shaft (mounting shaft 42) being larger than the upper shaft. The lower shaft (mounting shaft 42) is installed and connected to the overflow assembly 2, and the upper shaft (connecting shaft 43) is connected to the swing arm 5.

[0045] Preferably, the outer casing assembly 21 includes an upper overflow assembly shell 201 and a lower overflow assembly shell 202, which are welded together by a hot plate; a baffle 4 is disposed in the overflow channel 210 of the overflow assembly 2, and the overflow assembly 2 is provided with a mounting hole 211 that matches it; a swing arm 5 is snapped onto the upper overflow assembly shell 201 and is limitedly connected to the baffle 4; and a micro switch 23 is installed on the upper overflow assembly shell 201.

[0046] In this embodiment of the sink-type dishwasher, the baffle 4 in the overflow assembly 2 swings under the pressure of the overflow water flow, which can drive the swing arm 5 to rotate clockwise. When the swing arm 5 rotates clockwise by a certain angle, the swing arm 5 contacts the micro switch 23 and is electrically triggered. When there is no overflow water flow pressure, the baffle 4 rotates counterclockwise to reset under its own weight, which at the same time drives the swing arm 5 to rotate counterclockwise to reset, and the micro switch is then reset.

[0047] Preferably, a limiting groove 212 is provided on one side of the mounting hole 211, and the baffle body 41 is set in the limiting groove 212 and swings within the angle range limited by the limiting groove 212. Its structure is simple, reasonable and ingenious design, which can improve the reliability of the swing of the baffle body 41 so that the swing arm 5 can accurately cooperate with the micro switch 23.

[0048] Furthermore, a pivot hole 51 is provided on one side of the swing arm 5, and a limiting groove 52 is provided on one side of the pivot hole 51. The pivot hole 51 of the swing arm 5 extends into the housing assembly 21 and connects with the connecting pivot 43 of the baffle 4. The baffle body 41 is locked in the limiting groove 52. Its structure is simple, reasonable and ingenious, which can improve the reliability of the connection between the swing arm 5 and the baffle 4, so that the swing arm 5 can swing with the baffle 4. In summary, the swing arm 5 has an upper and lower structure. The upper part is provided with an L-shaped swing arm structure, and the lower part is provided with a limiting groove 52 for connecting with the pivot hole 51 of the baffle 4 and locking the baffle body 41. The upper end of the limiting groove 52 is provided with a triangular limiting rib 53 to limit the connection with the overflow assembly 2 and the baffle 4.

[0049] Preferably, a limiting rib 53 is provided between the swing arm 5 and the rotating shaft mating hole 51. The limiting rib 53 is confined between the inner side of the outer shell assembly 21 and the baffle body 41. Its structure is simple and can improve the stability and reliability of the swing arm 5 installation. In this embodiment, the swing arm 5 is snapped between the overflow assembly upper shell 201 and the baffle 4. The swing arm 5 is provided with a triangular limiting rib 53 that snaps into the overflow assembly 2 from the outside of the overflow assembly upper shell 201 and is snapped into the baffle 4.

[0050] Furthermore, it also includes an overflow pipe 6, a main drain pipe 7, and an external drain pipe 8. The drainage assembly 3 includes a drain valve 31 and a drain pipe 32. The inlet of the drain valve 31 is connected to the drain outlet at the bottom of the water tank body 1, and the outlet is connected to the drain pipe 32. The outlet of the overflow pipe 6 and the outlet of the drain pipe 32 are respectively connected to the main drain pipe 7, and the main drain pipe 7 is connected to the external drain pipe 8. The sink-type dishwasher provided in this embodiment has an overflow component 2 connected to an overflow port 100 on the sink body 1, and an overflow channel 210 connected to an overflow pipe 6 is provided in the overflow component 2. An oscillating baffle 4 is provided in the overflow channel 210, which can oscillate with the overflow water flow. An overflow interface is provided at the lower end of the overflow component 2, which is connected to the overflow pipe 6. The drain valve 31 of the sink-type dishwasher provided in this embodiment is located at the bottom of the sink dishwasher and can control the connection and disconnection between the bottom of the sink body 1 and the drain pipe 32. The overflow path is the overflow path of the sink-type dishwasher in the case of abnormal high water level, and the drainage path is the active drainage path of the dishwasher.

[0051] Example 2: Figures 1 to 9 As shown, this embodiment provides an overflow control method for a sink-type dishwasher, applied to the sink-type dishwasher described in Embodiment 1. The control method includes the following steps:

[0052] S1. Determine whether the micro switch 23 is triggered. If yes, proceed to step S2. If no, repeat step S1.

[0053] S2, control the drainage component 3 to open;

[0054] S3 triggers a high water level fault alarm.

[0055] This embodiment provides an overflow control method for a sink-type dishwasher, which can effectively prevent the water level from rising continuously and overflowing into the dishwasher end face or cabinet under abnormal high water level conditions, thus avoiding damage to the dishwasher or user's cabinet.

[0056] like Figure 9 As shown, when the sink dishwasher is in normal water intake, if the water intake component malfunctions, the sink dishwasher will continue to take in water. When the water level reaches the overflow port height, the water flows through the overflow port 100 and overflows through the overflow channel 210 in the overflow component 2. When the overflow water flows through the overflow channel 210, the baffle 4 swings under the pressure of the water flow, which in turn drives the swing arm 5 to swing and trigger the micro switch 23. After the micro switch 23 closes, it feeds back the overflow signal to the control unit. After receiving the high water level abnormal overflow signal, the control unit opens the drain valve 31 at the bottom of the sink body 1 to actively drain the excess water and at the same time issues a high water level abnormal alarm to prevent the abnormal water level from continuing to rise.

[0057] Example 3: Figures 1 to 8 and Figure 10 As shown, this embodiment provides an overflow control method for a sink-type dishwasher, applied to the sink-type dishwasher described in Embodiment 1. The control method includes the following steps:

[0058] S1. Determine whether the micro switch 23 is triggered. If yes, proceed to step S2. If no, repeat step S1.

[0059] S2, control the drainage component 3 to open;

[0060] S3, after the preset working time of the drainage component 3, control the drainage component 3 to close;

[0061] S4. Determine whether the micro switch 23 has been reset. If yes, do not provide a feedback signal and end the program. If no, proceed to step S5.

[0062] S5 controls the drainage components to 3 times and provides a high water level warning.

[0063] This embodiment provides an overflow control method for a sink-type dishwasher, which can effectively prevent the water level from rising continuously and overflowing into the dishwasher end face or cabinet under abnormal high water level conditions, thus avoiding damage to the dishwasher or user's cabinet.

[0064] like Figure 10 As shown, in this embodiment, when the user uses the sink dishwasher as a sink, water is directly added to the sink body 1 via a tap. As the user continues to add water, the water level inside the sink body 1 rises continuously. When the water level in the sink body 1 rises to the overflow port height, the continuously rising water flows through the overflow port 100 into the overflow channel 210. When the overflow water flows through the overflow channel 210, the water pressure drives the baffle 4 to swing, which in turn drives the swing arm 5 to swing, triggering the micro switch 23. After the micro switch 23 closes, it sends an overflow signal to the control unit. After receiving the high water level abnormal overflow signal, the control unit opens the drain valve 31 at the bottom of the sink body 1. The drain valve 31 drains excess water. If the water level is lower than the sink overflow port 100 and the water does not flow through the overflow channel 210, the micro switch 23 resets, and the drain valve 31 closes. If the water level does not drop during the drain valve 31 draining process, and the water continues to flow through the overflow channel 210... If the micro switch 23 continuously feeds back a high water level overflow signal, the drain valve 31 will continue to open to actively drain water and feed back an abnormally high water level signal to remind the user to turn off the faucet.

[0065] The above descriptions are merely some embodiments of the present invention. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of the present invention, and all such modifications and improvements fall within the scope of protection of the present invention.

Claims

1. A method of overflow control for a sink-type dishwasher, characterized in that, The sink type dish washing machine comprises a sink body (1), an overflow assembly (2), a drainage assembly (3) and a control unit, wherein an overflow port (100) is arranged on the sink body (1), the overflow assembly (2) is installed on the sink body (1) and communicates with the overflow port (100), the drainage assembly (3) is installed on the bottom of the sink body (1), the overflow assembly (2) comprises a shell assembly (21), a swing assembly (22) and a micro switch (23), wherein an overflow channel (210) is formed in the shell assembly (21), the swing assembly (22) and the micro switch (23) are arranged on the shell assembly (21), and the swing assembly (22) is at least partially located in the overflow channel (210), the micro switch (23) is opened or closed by swinging the swing assembly (22), and the control unit is electrically connected with the micro switch (23) and the drainage assembly (3) respectively, and the control unit controls the drainage assembly (3) to work according to the state of the micro switch (23); The control method comprises the following steps: S1, judging whether the micro switch (23) is triggered or not, if yes, entering step S2, if not, repeating step S1; S2, controlling the drainage assembly (3) to open.

2. The overflow control method of a sink-type dishwasher according to claim 1, characterized in that, The swing assembly (22) comprises a baffle (4) and a swing arm (5), wherein the baffle (4) is arranged inside the shell assembly (21) and at least partially located in the overflow channel (210), the swing arm (5) is arranged outside the shell assembly (21) and connected with the baffle (4), and the micro switch (23) is opened or closed by swinging the swing arm (5).

3. The overflow control method of a sink-type dishwasher according to claim 2, characterized in that, The baffle (4) comprises a baffle body (41), a mounting rotating shaft (42) arranged on one side of the baffle body (41) and a connecting rotating shaft (43) arranged on one end of the mounting rotating shaft (42), a mounting hole (211) is arranged inside the shell assembly (21), and the mounting rotating shaft (42) is rotatably arranged in the mounting hole (211).

4. The overflow control method of a sink-type dishwasher according to claim 3, characterized in that, A limiting groove (212) is arranged on one side of the mounting hole (211), and the baffle body (41) is arranged in the limiting groove (212) and swings within the angle range defined by the limiting groove (212).

5. The overflow control method of a sink-type dishwasher according to claim 3, characterized in that, A rotating shaft matching hole (51) is arranged on one side of the swing arm (5), a limiting clamping groove (52) is arranged on one side of the rotating shaft matching hole (51), the rotating shaft matching hole (51) of the swing arm (5) extends into the shell assembly (21) and is connected with the connecting rotating shaft (43) of the baffle (4), and the baffle body (41) is clamped in the limiting clamping groove (52).

6. The overflow control method of a sink-type dishwasher according to claim 5, characterized in that, A limiting clamping rib (53) is arranged between the swing arm (5) and the rotating shaft matching hole (51), and the limiting clamping rib (53) is limited between the inner side of the shell assembly (21) and the baffle body (41).

7. The overflow control method of a sink-type dishwasher according to any one of claims 1 to 6, characterized in that, The overflow pipe (6), the main drain pipe (7) and the outer drain pipe (8) are further included, the drain assembly (3) comprises a drain valve (31) and a drain pipe (32), the water inlet of the drain valve (31) is communicated with the drain port at the bottom of the sink body (1), and the water outlet is communicated with the drain pipe (32); The water outlet of the overflow pipe (6) and the water outlet of the drain pipe (32) are respectively communicated with the main drain pipe (7), and the main drain pipe (7) is communicated with the outer drain pipe (8).

8. The overflow control method of a sink-type dishwasher according to claim 1, characterized in that, The step S2 further comprises the following steps: S3, high water level fault alarm is performed.

9. The overflow control method of a sink-type dishwasher according to claim 1, characterized in that, The step S2 further comprises the following steps: S3, after the drain assembly (3) is opened for a preset time, the drain assembly (3) is controlled to be closed; S4, whether the micro switch (23) is reset is judged, if yes, no feedback signal is given and the program is ended, if not, the step S5 is entered; S5, the drain assembly (3) is controlled to be opened, and high water level reminding is performed.

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