CN210990078U - Water inlet valve assembly for dish washing machine - Google Patents

Abstract

The utility model discloses a water inlet valve component for a dish-washing machine, which comprises a water inlet valve, a sealing element, a water inlet pipeline and a water outlet pipeline which are vertical to each other, wherein the sealing element is positioned at a sealing port arranged at the joint between the water inlet pipeline and the water outlet pipeline, and the sealing end surface of the sealing element is parallel to the water inlet pipeline or is inclined at an angle less than 60 degrees; the sealing element is controlled by the water inlet valve to move, so that a sealing opening between the water inlet pipeline and the water outlet pipeline is opened or closed; the water outlet pipeline is connected with the water inlet of the dish washer. The utility model discloses the seal face and the sealing port that intake valve subassembly can effectively solve the switch passageway sealing member of intake valve subassembly are because of sealing to bind too tightly can not open or pile up at seal face because of impurity, incrustation scale formation and cause the not tight problem of valve seal.

Description

Water inlet valve assembly for dish washing machine

Technical Field

The utility model belongs to the technical field of dish washer, concretely relates to dish washer inlet valve subassembly and control method thereof.

Background

If the existing dish-washing machine is not used for a long time, the sealing end face of the sealing element of the opening and closing channel of the water inlet valve is continuously bonded with the sealing port due to sealing, so that the valve bonding phenomenon is easy to occur, the water inlet valve assembly cannot be opened, and the water inlet function cannot be realized.

In addition, because the water inlet valve of the dish washing machine is arranged in front of the respirator, impurities and water scales are inevitably remained in the water path after the dish washing machine is used for a long time. In the water inlet process, the impurities and the scale generation substances pass through the water inlet pipeline and the water inlet pipeline of the water inlet valve, and when the water inlet valve is closed after the water inlet is finished, the impurities and the scale generation substances are gradually accumulated in the water inlet valve, particularly the sealing end surface of the opening and closing channel of the water inlet valve. Along with the extension of the service time of the dish washing machine, the water inlet valve can not be completely sealed, tap water directly enters the interior of the dish washing machine through the sealed end surface and overflows into a cabinet, and potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims at first providing a dish washer valve module that intakes, the sealed terminal surface and the sealing opening of solving the switch channel sealing member of valve module that intakes is because of the sealing adhesion too tightly can not open or pile up at the sealed terminal surface because of impurity, incrustation scale formation and cause the not tight problem of valve seal.

In order to solve the technical problem, the technical scheme of the utility model is that:

a water inlet valve assembly for a dishwasher, comprising a water inlet valve, a sealing element, a water inlet pipeline and a water outlet pipeline, wherein the central line of the water inlet pipeline and the central line of the water outlet pipeline are perpendicular to each other; the sealing element is positioned at a sealing port arranged at the joint between the water inlet pipeline and the water outlet pipeline, and the sealing end surface of the sealing element is parallel to the water inlet pipeline or inclined at an angle of less than 60 degrees; the sealing element is connected with the water inlet valve and is controlled by the water inlet valve to move, so that a sealing port between the water inlet pipeline and the water outlet pipeline is opened or closed; the water outlet pipeline is connected with a water inlet of the dishwasher.

The utility model discloses a further technical scheme still lies in:

the water inlet valve comprises a valve body and a valve rod which is connected with the valve body in a matching way; a connecting seat is arranged at the joint between the water inlet pipeline and the water outlet pipeline, the connecting seat is provided with a cavity, the cavity is respectively provided with the sealing port, a water inlet communicated with the water inlet pipeline and a water outlet communicated with the water outlet pipeline, and the central lines of the water inlet and the water outlet are mutually vertical; the sealing element is positioned in the cavity, one end with a sealing end face is positioned at the position of the sealing opening, the other end of the sealing element is connected with one end of the valve rod, and the other end of the valve rod is arranged in the valve body.

Furthermore, a blocking wall is arranged in the cavity, and the sealing port is arranged on the blocking wall.

The joint surface of the sealing port and the sealing end surface is higher than the lowest point of the water inlet.

And a sealing ring or a sealing gasket is arranged on the sealing end surface of the sealing element.

The utility model discloses dish washer inlet valve subassembly can effectively solve inlet valve subassembly's switch passageway sealing member's seal face and seal port because of the sealed adhesion too tightly can not open or pile up at seal face because of impurity, incrustation scale formation and cause the not tight problem of valve seal. Before the dishwasher executes a water injection program, according to the weekly use frequency set by a user, the water inlet valve of the utility model is controlled to continuously open and close, so that the sealing end surface and the sealing port of the switching channel sealing element of the water inlet valve component of the dishwasher can be prevented from being opened due to tight sealing adhesion; meanwhile, at the moment of continuous opening and closing actions of the water inlet valve, impurities and scale generation substances attached to the sealing end surface of the opening and closing channel of the water inlet valve assembly can fall into a water outlet pipeline of the water inlet valve assembly by means of the gravity of the impurities and the scale generation substances under the impact of water flow of inlet water and are discharged along with outlet water.

Drawings

FIG. 1 is a schematic structural diagram of a water inlet valve assembly of a dishwasher provided in embodiment 1 of the present invention;

FIG. 2 is a schematic sectional view of a water inlet valve assembly of a dishwasher according to embodiment 2 of the present invention;

fig. 3 is a flow chart of a control method of a water inlet valve assembly of a dishwasher according to embodiment 2 of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

It should also be noted that the terms "upper", "lower", "one end" or "the other end" in the embodiments of the present invention are only relative terms or reference to normal use state of the product, or reference to positions based on the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore should not be considered as limiting.

As shown in fig. 1 and 2, an inlet valve assembly provided by an embodiment of the present invention includes an inlet valve 1, a sealing member 3, an inlet pipeline 4 and an outlet pipeline 5, wherein a central line of the inlet pipeline 4 and a central line of the outlet pipeline 5 are perpendicular to each other; the sealing element 3 is connected with the water inlet valve 1 and is controlled to move by the water inlet valve 1. The sealing element 3 is arranged at the joint between the water inlet pipeline 4 and the water outlet pipeline 5 and is positioned at the position of a sealing port arranged at the joint between the water inlet pipeline 4 and the water outlet pipeline 5, the sealing port between the water inlet pipeline 4 and the water outlet pipeline 5 can be opened or closed at least twice in a short time when the dishwasher is started through a moving mode, and then the water inlet pipeline 4 is communicated with the water outlet pipeline 5 to enter a water injection procedure of the dishwasher. Further, the sealing member 3 has a sealing end surface 31, and the sealing end surface 31 is parallel to the central line of the water inlet pipeline 4 and perpendicular to the central line of the water outlet pipeline 5; or the sealing end surface 31 is obliquely arranged relative to the central line of the water inlet pipeline 4 and the central line of the water outlet pipeline 5 and is inclined at an angle smaller than 60 degrees with the central line of the water inlet pipeline 4; the water outlet pipe 5 is connected with the water inlet of the dish washer 6.

When the dish washer is started, the water inlet valve 1 is opened, the sealing element 3 moves to be separated from the position of the sealing opening of the sealing element, at the moment, the water flow of the water inlet pipeline 4 can generate larger impact force at the moment that the sealing element 3 is separated from the position of the sealing opening of the sealing element, and because the sealing end surface 31 of the sealing element 3 is parallel or inclined with the central line of the water inlet pipeline 4, the impact force of the water flow can wash impurities and scale generation substances at the position of the sealing end surface 31 and the sealing opening of the sealing element 3, so that the impurities and the scale generation substances on the sealing end; meanwhile, the water inlet pipeline 4 is perpendicular to the water outlet pipeline 5, and impurities and scale formation falling off from the sealing end surface 31 and the sealing port fall into the water outlet pipeline 5 under the action of self gravity. Further, the water inlet valve 1 drives the sealing element 3 to be rapidly opened and closed at the sealing port position for multiple times in a short time under the control of the control system, and the sealing end surface 31 and the sealing port can be repeatedly washed by the impact force of water flow. Therefore, the utility model discloses a water intaking valve subassembly is in the twinkling of an eye of opening closing action in succession, can make the impurity and the incrustation scale formation of sealing member 3's seal end face 31 and sealing port position rely on its self gravity to fall and wash away along with the rivers in intaking valve subassembly outlet pipe way 5 under the impact of rivers of intaking to realized the utility model discloses a purpose.

In the structure, when the sealing end face 31 of sealing member 3 is parallel with the 4 central lines of water inlet pipe, water inlet valve 1 is opened, the moment that sealing member 3 moves, water flow of water inlet pipe 4 can produce certain impact force in the moment that sealing member 3 breaks away from its seal port position on the one hand, and simultaneously, sealing member 3 is in the moment of moving, still can make to form narrow passageway (the passageway diameter at this moment is less than the diameter of water inlet pipe 4) between sealing end face 31 and the seal port, the rivers cross-section reduces suddenly, impact water flow pressure increases, thereby make the rivers impact force further increase, make the cleaning performance of sealing end face 31 and seal port position better. When the sealing end face 31 of the sealing element 3 is inclined at an angle smaller than 60 degrees (the inclination angle is preferably smaller than 45 degrees) relative to the central line of the water inlet pipeline 4, the water inlet valve 1 is opened, and at the moment when the sealing element 3 moves, the water flow of the water inlet pipeline 4 generates a certain impact force at the moment when the sealing element 3 is separated from the sealing port position, and because the sealing end face 31 is inclined at a certain angle relative to the central line of the water inlet pipeline 4, the water flow is impacted when contacting the sealing end face 31, and the impact force can make impurities and scale formation on the sealing end face 31 fall off. Meanwhile, water flow splashes due to impact when contacting the sealing end face 31, and the sealing end face 31 is arranged opposite to the sealing opening, so that the splashed water flow can further impact the sealing opening, and the sealing opening can be cleaned.

Referring to fig. 1 and 2, in a specific structural embodiment of the present invention, the water inlet valve 1 includes a transmission motor 11, a control unit 13, a valve body 14 and a valve rod 12 cooperating with the valve body 14; the water inlet pipeline 4 and the water outlet pipeline 5 are provided with a connecting seat 2 between, the connecting seat 2 can be connected with the valve body 14, the connecting seat is provided with a cavity 21, a sealing port, a water inlet 23 and a water outlet 24 are arranged in the cavity 21, the sealing port is positioned on a channel communicated between the water inlet 23 and the water outlet 24, the central line of the water inlet 23 and the central line of the water outlet 24 are mutually vertical and are respectively connected with the water inlet pipeline 4 and the water outlet pipeline 5, so that the central line of the water inlet pipeline 4 and the central line of the water outlet pipeline 5 are. The packing 3 is disposed in the cavity 21, and has one end having a sealing end surface 31 at a sealing position and the other end connected to one end of the valve stem 12, and the other end of the valve stem 12 is disposed in the valve body 14. The control unit 13 is electrically connected with the transmission motor 11, and drives the valve rod 12 to move through the transmission motor 11. When the water inlet pipe is in work, the control unit 13 enables the transmission motor 11 to be started, the valve rod 12 moves, meanwhile, the sealing element 3 is driven to move, and the sealing opening is opened or closed, so that a connecting channel between the water inlet pipe 4 and the water outlet pipe 5 is opened or closed. In the structure, the cavity 21 is arranged on the connecting seat 2, so that the water inlet 23, the water outlet 24 and the sealing port are distributed in the cavity 21, the effective connection and the vertical arrangement between the water inlet pipeline 4 and the water outlet pipeline 5 are realized, and the connection between the valve rod 12 and the sealing element 3 and the processing of the sealing port are facilitated. Further, the connecting base 2 is also beneficial to the installation and fixation of the valve body 14, the water inlet pipeline 4 and the water outlet pipeline 5.

As the further structure of above-mentioned connecting seat 2, the utility model discloses still set up one in the cavity 21 of connecting seat 2 and kept off rampart 25, should keep off rampart 25 and for the cavity boss of cavity 21 bottom upwards extension, have the binding face that can be relative with seal end face 31, form the sealing opening. Under the drive of the valve rod 12 of the water inlet valve 1, the sealing end surface 31 of the sealing element 3 is attached to the surface or the sealing end surface 31 at the position of the separation sealing port is separated from or attached to the attaching surface on the blocking wall 25, so that the opening or closing of a connecting channel between the water inlet pipeline 4 and the water outlet pipeline 5 can be completed. The arrangement of the blocking wall 25 can reduce the processing requirement on the connecting seat 2, and the plane precision of the binding surface can be ensured by processing the binding surface of the blocking wall 25 opposite to the sealing end surface 31, so that the sealing effect of the sealing element 3 at the sealing port position is reliably ensured.

In order to achieve better water flow impact effect, the joint surface of the sealing port and the sealing end surface 31 (or the joint surface of the baffle wall 51 and the sealing end surface 31) is higher than the lowest point of the water inlet pipeline 4.

To further ensure the sealing effect, the sealing end face 31 of the sealing element 3 may also be provided with a sealing ring or gasket 31. The sealing ring or the sealing gasket 31 is arranged at a position corresponding to the position of the sealing opening, so that a better sealing effect can be achieved, and meanwhile, the replacement is convenient.

The utility model adopts the above structure, control unit 13 control drive motor 11 drives valve rod 12 and reciprocates to it removes to drive sealing member 3. Referring to fig. 1, when the sealing element 3 moves upward, the sealing end face 31 is separated from the position of the sealing port, the water inlet pipeline 4 is communicated with the water outlet pipeline 5, and water passes through the water inlet valve assembly and then is discharged from the water outlet pipeline 5 into the dishwasher 6; when the sealing element 3 moves downwards, the sealing end face 31 of the sealing element 3 is blocked on the sealing opening, and the water outlet pipeline 5 of the water inlet pipeline 4 is blocked. The continuous opening and closing actions of the water inlet valve 1 are controlled by controlling the up-and-down movement of the sealing element 3, so that the situation that the sealing end surface 31 and the sealing port of the water inlet valve assembly switching channel sealing element 3 cannot be opened due to too tight sealing adhesion can be avoided; meanwhile, at the moment of continuous opening and closing actions of the water inlet valve 1, impurities and scale generation substances attached to the sealing end surface 31 of the opening and closing channel sealing part 3 of the water inlet valve assembly can fall into the water outlet pipeline 5 by the aid of the gravity of the water inlet flow under the action of the impact force of the water inlet flow, and then are discharged along with the discharged water. Therefore, the utility model provides a sealing end face 31 and the sealing opening of intake valve subassembly's sealing member 3 can effectively be solved to the intake valve subassembly and because of the sealing adhesion too tightly can not open or pile up at sealing end face 31 because of impurity, incrustation scale formation and cause the not tight problem of valve seal.

As shown in fig. 3, the method for controlling the water inlet valve assembly includes the following steps:

and S1, corresponding the use frequency of the dishwasher in unit time to the preset opening and closing times and the preset opening and closing duration of the water inlet valve.

The step can set the use frequency of the dish washer for washing dishes and other tableware according to the requirement, and the unit time can be calculated according to the week, such as when X is 7, the washing is carried out every day, when X is 2, the washing is carried out twice every week.

Since the frequency of use of the dishwasher is related to the amount of impurities, scale formation, and the like, this step ensures the washing effect by setting the corresponding opening and closing times and the corresponding opening time period of the feed valve 1 by the frequency of use.

In this step, the preset opening and closing times and duration of the water inlet valve 1 are in inverse proportion to the use frequency of the dishwasher in unit time. The frequency of the dish washer used every week is small, the accumulation amount of impurities and scale deposit is correspondingly increased, the sealing duration of the sealing end surface 31 and the sealing port is long, and the sealing end surface and the sealing port need to be repeatedly washed, so the opening and closing times of the water inlet valve 1 and the opening duration of the sealing port are correspondingly increased; the frequency of use is high every week, the accumulation of impurities and scale formation is low, the water flow needing to be repeatedly washed is low, and therefore the opening and closing times of the water inlet valve 1 and the opening time of the sealing opening are correspondingly reduced. Therefore, the water consumption can be reduced, and the influence of the instantaneous impact force of the water flow on the water inlet valve 1 when the water inlet valve 1 is continuously opened and closed can be reduced.

When the specific setting, the preset opening time T1 of the water inlet valve 1 is longer than the closing time T2, namely the opening time of the sealing opening is longer than the closing time of the sealing opening, so that the flushing time of the sealing end face 31 and the sealing opening can be ensured, and the flushing effect is improved.

Further, the preset opening time period T1 of the water inlet valve 1 is as follows: t1 is more than or equal to 1s and less than or equal to 3s, and the preset closing time T2 is as follows: t2 is more than or equal to 0.5s and less than or equal to 2 s.

As a specific embodiment of the present embodiment, the number of times of opening, the opening period T1, and the number of times of closing, the closing period T2 corresponding to the weekly usage frequency X are shown in table 1. The user only needs to select the use frequency to obtain the corresponding opening times, opening duration T1, closing times and closing duration T2.

TABLE 1

S2, providing a manual interaction interface for the user to select, prompting whether to start the 'washing program' when the dishwasher is started, and entering the next program if the 'washing program' is selected; if no, directly entering a water injection program of the dish washer;

when the dishwasher is started, a user can select whether to select a 'washing program' through a manual interaction interface, wash the sealing port in advance, and then execute a water injection program, or directly enter the water injection program of the dishwasher.

If no: the water inlet valve 1 is started, the sealing element 3 leaves the position of the sealing port, the water inlet pipeline 4 is communicated with the water outlet pipeline 5, water in the water inlet pipeline 4 flows into the water outlet pipeline 5 and then directly enters the dish washing machine 6 through the water inlet of the dish washing machine, and a water injection program is executed. That is, when the user selects "no", the dishwasher may skip the washing process of the sealing member 3 and the sealing port by the water inlet valve 1 continuously opening and closing and directly perform the water inlet filling process. After the water injection is completed, the dishwasher starts to wash dishes.

If "yes" is selected, the flush procedure is initiated.

S3, when the user selects "yes", the control unit 13 starts the "flushing program" according to the user' S instruction, and prompts the user to set the frequency of use to automatically select the number of times the inlet valve 1 is opened and closed, and the opening and closing time periods.

And S4, after the user finishes the selection, entering a flushing program. At the moment, the control unit 13 drives the transmission motor 11 to enable the valve rod 12 to move upwards, the sealing element 3 leaves the position of the sealing opening under the driving of the valve rod 12, at the moment when the sealing opening is just opened, water flow of the water inlet pipeline 4 rushes into the sealing end face 31 and the sealing opening along the direction of the central line of the sealing opening, the sealing opening is flushed within a set time period, after the flushing is completed, under the action of the control unit 13, the water inlet valve 2 is closed, the valve rod 12 moves downwards, the sealing element 3 moves to the position of the sealing opening under the driving of the valve rod 12, the sealing opening is closed, and the water. After the set closing time is reached, the water inlet valve 1 is started again, and the above process is repeated. Thus, the water inlet valve 1 acts according to the set times, the opening time and the closing time, the sealing element 3 can repeatedly move for a plurality of times within the set time, the sealing port can be opened and closed for a plurality of times, the sealing end surface 31 and the sealing port can be cleaned for a plurality of times by water flow with impact force, and impurities and scale formation on the sealing end surface 31 and the sealing port can fall off and fall into the water outlet pipeline 5.

S5, after the washing is finished, the water inlet valve 1 is opened again, the sealing element 3 moves upwards again, the sealing element 3 leaves the position of the sealing opening, the water inlet pipeline 4 is communicated with the water outlet pipeline 5, water in the water inlet pipeline 4 flows into the water outlet pipeline 5 and then directly enters the dish washing machine 6 through the water inlet of the dish washing machine, and a water injection program is executed. After the water injection is completed, the dishwasher starts to wash dishes.

The utility model provides a water inlet valve subassembly can effectively solve water inlet valve subassembly's switch passageway sealing member 3's seal face 31 and seal port because of sealing bonding too tightly can not open or pile up at seal face 31 because of impurity, incrustation scale formation and cause the not tight problem of valve seal.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (5)

1. A fill valve assembly for a dishwasher, characterized by: the water inlet pipe is characterized by comprising a water inlet valve, a sealing element, a water inlet pipeline and a water outlet pipeline, wherein the central line of the water inlet pipeline is vertical to the central line of the water outlet pipeline; the sealing element is positioned at a sealing port arranged at the joint between the water inlet pipeline and the water outlet pipeline, and the sealing end surface of the sealing element is parallel to the water inlet pipeline or inclined at an angle of less than 60 degrees; the sealing element is connected with the water inlet valve and is controlled by the water inlet valve to move, so that a sealing port between the water inlet pipeline and the water outlet pipeline is opened or closed; the water outlet pipeline is connected with a water inlet of the dishwasher.

2. A fill valve assembly for a dishwasher according to claim 1, wherein: the water inlet valve comprises a valve body and a valve rod which is connected with the valve body in a matching way; a connecting seat is arranged at the joint between the water inlet pipeline and the water outlet pipeline, the connecting seat is provided with a cavity, the cavity is respectively provided with the sealing port, a water inlet communicated with the water inlet pipeline and a water outlet communicated with the water outlet pipeline, and the central lines of the water inlet and the water outlet are mutually vertical; the sealing element is positioned in the cavity, one end with a sealing end face is positioned at the position of the sealing opening, the other end of the sealing element is connected with one end of the valve rod, and the other end of the valve rod is arranged in the valve body.

3. A fill valve assembly for a dishwasher according to claim 2, wherein: the cavity is internally provided with a blocking wall, and the sealing port is arranged on the blocking wall.

4. A fill valve assembly for a dishwasher according to claim 2, wherein: the joint surface of the sealing port and the sealing end surface is higher than the lowest point of the water inlet.

5. A water inlet valve assembly for a dishwasher according to any one of claims 1 to 4 wherein: and a sealing ring or a sealing gasket is arranged on the sealing end surface of the sealing element.

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