CN211583018U - Dish washer with overflow protection architecture - Google Patents

Abstract

The utility model discloses a dish washer with overflow protection architecture, include: an inner container for accommodating tableware; the bottom plate is arranged below the inner container, and an overflow protection structure is arranged at the bottom plate; the overflow protection structure comprises a microswitch, a floater and a protection box, wherein the floater is used for being matched with a switch contact of the microswitch to trigger the microswitch, the protection box is provided with a first protection cavity and a second protection cavity which are adjacently arranged, the microswitch is positioned in the first protection cavity, and the switch contact is positioned in the second protection cavity. The microswitch is positioned in the first protection cavity, so that the leakage water at the bottom of the dishwasher can not flow or drip onto the microswitch, and the microswitch is really protected against water; the switch contact is located the second protection intracavity to first protection chamber and second protection chamber are adjacent to be set up, make the switch contact stretch out the second protection chamber that just gets into after first protection chamber, guarantee that the dish washer bottom leaks and can't flow or drip on the switch contact.

Description

Dish washer with overflow protection architecture

Technical Field

The utility model belongs to the technical field of dish washer, concretely relates to dish washer with overflow protection architecture.

Background

The overflow protection system of the dish washer plays an important protection role when the dish washer has the faults of overflow, water seepage, water leakage and the like. If the overflow condition of the dishwasher cannot be quickly found and controlled, the overflowed water is likely to flow out of the dishwasher and onto the ground, posing a great safety threat to the floor, kitchen utensils and even the user's home, and therefore it is particularly important to have a safe and reliable overflow protection device. The existing overflow protection system consists of an overflow connecting groove, a water pool, an overflow floater, a floater box and a microswitch. The pond is dish washer bottom steel sheet, and water drainage pipe goes out the problem or dish washer appears leaking, the infiltration phenomenon, and during the water that flows can get into the bottom steel sheet of dish washer, the liquid level of bottom steel sheet risees, floats the float, touches micro-gap switch, accomplishes the alarm action.

Chinese patent application No. 201220203242.7 discloses an overflow protection structure of dish washer, and this overflow protection structure includes the inner bag, is located the bottom plate of inner bag downside, sets up float switch assembly on the bottom plate and is located the crossbeam of bottom plate upside, and this dish washer's overflow protection structure still includes one end intercommunication the inner bag, the other end stretch to the spillway connecting groove of bottom plate, spillway connecting groove are for being the independent finished piece of open-ended slot form to fix on the crossbeam with the detachable mode. The front side of the bottom of the inner container is provided with an overflow port, the overflow port faces to an opening at one end of the overflow connecting groove, and the overflow port is communicated with an opening at the top end of the overflow connecting groove to form an overflow channel. The overflow protection structure of the dish washing machine of the device is simpler in structure and saves cost by fixing the overflow connecting groove on the cross beam. However, the device cannot solve the problem of waterproof protection of the float box on the micro switch, and also cannot solve the problem of waterproof of the extended switch contact and the problem of contact flowing to a circuit along the switch contact along water drops.

The above information disclosed in this background section is only for enhancement of understanding of the background of the application and therefore it may comprise prior art that does not constitute known to a person of ordinary skill in the art.

SUMMERY OF THE UTILITY MODEL

The utility model provides a to foretell problem among the prior art, provide a dish washer with overflow protection architecture.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme to realize:

a dishwasher having an overflow water protection structure, comprising:

an inner container for accommodating tableware;

the bottom plate is arranged below the inner container, and an overflow protection structure is arranged at the bottom plate;

the overflow protection structure comprises a microswitch, a floater and a protection box, wherein the floater is used for being matched with a switch contact of the microswitch to trigger the microswitch, the protection box is provided with a first protection cavity and a second protection cavity which are adjacently arranged, the microswitch is positioned in the first protection cavity, and the switch contact is positioned in the second protection cavity.

Further, the float is provided with a column part which can move up and down and is positioned in the second protection cavity and is matched with the switch contact to trigger the microswitch.

Furthermore, a downward groove matched with the switch contact is formed in the upper end of the column part.

Further, the float also has a float body part, and the cylindrical part is arranged in the middle of the float body part and extends upwards.

Furthermore, the protection box is also provided with two first limiting plates which are symmetrically arranged outwards along the cavity wall of the second protection cavity, and the two first limiting plates are positioned in the same plane.

Furthermore, a reinforcing rib is arranged between the first limiting plate and the cavity wall of the second protection cavity.

Furthermore, the protection box is also provided with two second limiting plates which are respectively arranged along the outer ends of the two first limiting plates in a downward extending manner, and the float body part is positioned between the two second limiting plates.

Furthermore, the second protection cavity is provided with a second top wall and a cylindrical side wall connected with the second top wall, and a communication port used for the switch contact to extend into is formed in the cylindrical side wall.

Further, the first protection cavity is provided with a first top wall connected with the second top wall and first side walls positioned on two sides of the first top wall.

Furthermore, the protection box is fixed on the bottom plate, and the micro switch is installed in the first protection cavity.

Furthermore, a concave water collecting tank is arranged on the bottom plate, and the floater is positioned in the water collecting tank.

Compared with the prior art, the utility model discloses an advantage is with positive effect: the protection box is provided with the first protection cavity and the second protection cavity which are adjacently arranged, and the microswitch is positioned in the first protection cavity, so that the condition that water leakage at the bottom of the dish washing machine cannot flow to or drip on the microswitch is ensured, and the microswitch is really protected against water; the switch contact is positioned in the second protection cavity, and the first protection cavity and the second protection cavity are arranged adjacently, so that the switch contact enters the second protection cavity after extending out of the first protection cavity, and the condition that the water leaked from the bottom of the dishwasher cannot flow to or drip on the switch contact is ensured; potential safety hazards are reduced, and safety is improved.

Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when read in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of a dishwasher with an overflow protection structure according to the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 at the base plate;

FIG. 3 is an enlarged view of the overflow protection structure of FIG. 2;

FIG. 4 is an enlarged schematic view of the overflow protection structure of FIG. 2;

FIG. 5 is a schematic top view of the structure of FIG. 2;

FIG. 6 is a schematic sectional view taken along line A-A in FIG. 5;

fig. 7 is an enlarged structural view of a region B in fig. 6.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the positional relationships shown in the drawings. The terminology is for the purpose of describing the invention only and is not intended to be limiting of the invention since it is not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation. Moreover, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-7, in order to provide an embodiment of the dishwasher with an overflow protection structure of the present invention, a dishwasher with an overflow protection structure comprises a box body 10, an inner container for accommodating tableware is arranged in the box body 10, a bottom plate 1 is arranged below the inner container, and an overflow protection structure is arranged at the bottom plate 1; when the inner container leaks water, overflows and seeps water, the dripping water falls on the bottom plate 1, and after the gathered water level rises, the overflow protection structure is triggered to realize alarm.

Referring to fig. 3 and 4, the overflow protection structure includes a microswitch 2, a float 3 and a protection box 4, the float 3 is used for cooperating with a switch contact 21 of the microswitch 2 to trigger the microswitch 2; the protection box 4 has a first protection cavity 41 and a second protection cavity 42 which are adjacently arranged, the micro switch 2 is positioned in the first protection cavity 41, and the switch contact 21 is positioned in the second protection cavity 42. The microswitch 2 is positioned in the first protection cavity 41, so that the leakage water at the bottom of the dishwasher can not flow or drip onto the microswitch 2, and the microswitch 2 is really protected against water; the switch contact 21 is positioned in the second protection cavity 42, and the first protection cavity 41 and the second protection cavity 42 are adjacently arranged, so that the switch contact 21 enters the second protection cavity 42 after extending out of the first protection cavity 41, and the condition that the water leaked from the bottom of the dishwasher cannot flow to or drip onto the switch contact 21 is ensured; potential safety hazards are reduced, and safety is improved.

Referring to fig. 4 and 6, the float 3 has a float body 30 and a column 31 extending upward in the middle of the float body 30, and the column 31 is located in the second protection chamber 42 to be movable up and down. When the inner container leaks water, overflows and seeps water, the floater 3 floats upwards along with the increase of water gathered on the bottom plate 1, so that the column part 31 is contacted with the switch contact 21 and pushed upwards, and the microswitch 2 is triggered; by providing the column portion 31, it is advantageous to restrict the movement of the float 3 in the front-rear and left-right directions and to ensure smooth movement in the up-down direction, and the column portion 31 is fitted to the inner wall of the second protection chamber 42. For better matching of the column part 31 and the switch contact 21, a downward groove 311 is arranged at the upper end of the column part 31, and the switch contact 21 is positioned at the groove 311, so that the switch contact 21 can be pushed to move upwards when the column part 31 moves upwards, and the switch contact 21 is prevented from sliding towards the left and right.

The protection box 4 also has two first limit plates 43 symmetrically arranged outwards along the wall of the second protection chamber 42, the two first limit plates 43 are located in the same plane, and the first limit plates 43 can be used for limiting the highest ascending position of the float body part 30. When the float 3 moves upward and triggers the microswitch 2, the upper end surface of the float body portion 30 contacts the lower end surface of the first stopper plate 43, preventing the float 3 from continuing to move upward and preventing the switch contact 21 from continuing to be pushed upward. The two first limiting plates 43 are symmetrically arranged, so that the force balance of the floater body part 30 is facilitated, the contact area is increased, and the limiting effect is improved.

Referring to fig. 4, a reinforcing rib 45 is arranged between the first limiting plate 43 and the cavity wall of the second protection cavity 42, the reinforcing rib 45 is a vertically arranged triangular plate, a first edge of the reinforcing rib 45 is fixed on the first limiting plate 43, and a second edge of the reinforcing rib 45 is fixed on the cavity wall of the second protection cavity 42. The protection box 4 further has two second limit plates 44 respectively extending downwards along the outer ends of the two first limit plates 43, the two second limit plates 44 are arranged in parallel, and the float body part 30 is located between the two second limit plates 44; by providing the two second limit plates 44, the float body portion 30 is advantageously limited in the front-rear direction, and smooth movement of the float 3 in the up-down direction is advantageously ensured.

The second protection cavity 42 has a second top wall 421 and a cylindrical side wall 422 connected to the second top wall 421, and a communication port 4221 for the switch contact 21 to extend into is opened in the cylindrical side wall 422; the switch contact 21 extends from the first protection chamber 41 into the second protection chamber 42 through the communication port 4221. The first protection chamber 41 has a first top wall 411 connected to the second top wall 421 and first side walls 412 on both sides of the first top wall 411. By arranging the first top wall 411 and the second top wall 421 to be connected, the top of the protection box 4 is closed, and water drops dropping from the top do not directly drop into the first protection cavity 41 and the second protection cavity 42, so that the tops of the micro switch 2 and the switch contact 21 are shielded.

The protection box 4 is fixed on the bottom plate 1 through screws, a concave water accumulation groove is arranged on the bottom plate 1 for the accumulation of water drops on the bottom plate 1, so that the water dropping on the bottom plate can flow to the water accumulation groove conveniently, and the floater 3 is positioned in the water accumulation groove.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or that equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention, which is claimed.

Claims (10)

1. A dishwasher having an overflow water protection structure, comprising:

an inner container for accommodating tableware;

the bottom plate is arranged below the inner container, and an overflow protection structure is arranged at the bottom plate;

the overflow protection structure is characterized by comprising a microswitch, a floater and a protection box, wherein the floater is used for being matched with a switch contact of the microswitch so as to trigger the microswitch, the protection box is provided with a first protection cavity and a second protection cavity which are adjacently arranged, the microswitch is positioned in the first protection cavity, and the switch contact is positioned in the second protection cavity.

2. The dishwasher of claim 1, wherein the float has a post portion that is movable up and down in the second protective chamber and cooperates with the switch contact to activate the microswitch.

3. The dishwasher of claim 2, wherein a downward groove is provided at an upper end of the column portion to mate with the switch contact.

4. The dishwasher of claim 2, wherein the float further has a float body portion, the float body portion being centrally and upwardly extending to provide the column portion.

5. The dishwasher according to any one of claims 1 to 4, wherein the protection box further comprises two first limiting plates symmetrically arranged outwards along the wall of the second protection chamber, and the two first limiting plates are located in the same plane.

6. The dishwasher of claim 5, wherein a stiffener is provided between the first limiting plate and a wall of the second protection chamber.

7. The dishwasher of claim 5, wherein the protection case further has two second limit plates respectively extended downward along outer ends of the two first limit plates, and the float body portion is located between the two second limit plates.

8. The dishwasher according to any one of claims 1 to 4, wherein the second protection chamber has a second top wall and a cylindrical side wall connected to the second top wall, and a communication port for the switch contact to protrude into is opened in the cylindrical side wall.

9. The dishwasher of claim 8, wherein the first protection chamber has a first top wall connected to a second top wall and first side walls on both sides of the first top wall.

10. The dishwasher of any one of claims 1 to 4, wherein the protective case is fixed to the base plate, a recessed sump is provided in the base plate, and the float is located in the sump.

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