CN209847114U - Overflow alarm device and dish washing machine - Google Patents

Abstract

The utility model relates to the technical field of washing appliances, and provides an overflow alarm device and a dish washing machine, wherein the overflow alarm device comprises a chassis cover, a micro switch, a buoy and a buoy cover, the chassis cover is integrally formed with a mounting seat, the buoy is sleeved on the mounting seat, the buoy cover is arranged on the buoy, the inner side of the buoy cover is provided with an inner cavity, the mounting seat sequentially passes through the buoy and the buoy cover, the mounting seat is provided with an assembly groove, and the micro switch is clamped in the assembly groove; the buoy can move up and down in the inner cavity relative to the microswitch and trigger the microswitch when the buoy rises to a preset position; the buoy cover is of a long plate-shaped structure, and two parallel straight side surfaces of the buoy cover are respectively connected with the chassis cover through a buckle structure. The utility model provides an overflow alarm device has the advantage that detects the precision height, with low costs and simple to operate.

Description

Overflow alarm device and dish washing machine

Technical Field

The utility model relates to a washing electrical apparatus technical field especially provides an overflow alarm device and dish washer.

Background

All be provided with overflow protection device on the dish washer base at present for send out the police dispatch newspaper when detecting dish washer leaks.

Most current overflow protection devices generally include a chassis cover, a float cover, and a microswitch. The buoy cover is arranged on the chassis cover and is provided with an inner cavity, the buoy is movably arranged in the inner cavity and can ascend and descend along with the ascending and descending of the water level, the micro switch is arranged on the buoy cover, when the water level ascends, the buoy ascends along with the water level and pushes the micro switch, and then information feedback is carried out through the micro switch, so that the purpose of alarming is achieved.

However, the micro switch is disposed on the float cover, wherein the float cover and the chassis cover are detachably assembled, the dishwasher vibrates during transportation or use, and thus the position of the float cover changes to cause the position of the micro switch to change, resulting in relative change of the position between the micro switch and the float, which reduces the detection accuracy, and may cause a false overflow phenomenon, i.e., the dishwasher does not overflow abnormally, but the dishwasher gives an overflow alarm.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an overflow alarm device aims at solving among the prior art overflow protection device and detects inaccurate technical problem.

In order to achieve the above object, the utility model adopts the following technical scheme: an overflow alarm device comprises a chassis cover, a microswitch, a buoy and a buoy cover, wherein a mounting seat is integrally formed on the chassis cover, the buoy is sleeved on the mounting seat, the buoy cover is arranged on the buoy, an inner cavity is formed in the inner side of the buoy cover, the mounting seat sequentially penetrates through the buoy and the buoy cover, an assembly groove is formed in the mounting seat, and the microswitch is clamped in the assembly groove; the buoy can move up and down relative to the microswitch in the inner cavity and trigger the microswitch when the buoy rises to a preset position; the buoy cover is of a long plate-shaped structure, and two parallel straight side surfaces of the buoy cover are connected with the chassis cover through buckle structures respectively.

Further, buckle structure is including locating the chassis is covered and towards the bellied floor of buoy cover, locate pothook on the floor locates the straight side edge of buoy cover can supply each the slot that the floor was inserted to and locate the slot outside supplies the draw-in groove of pothook joint.

Furthermore, the rib plate is of an inverted U-shaped structure, the hook is formed by extending the center of the horizontal plate of the inverted U-shaped rib plate downwards, and a gap is formed between the hook and the two vertical plates of the inverted U-shaped rib plate.

Furthermore, the bottom of the clamping hook is provided with a clamping pin extending outwards, and the upward top surface of the clamping pin is an inclined surface.

Furthermore, four enclosing plates are arranged on the chassis cover at intervals, the four enclosing plates are enclosed to form a limiting space, and the buoy cover is located in the limiting space.

Further, the top of the buoy is provided with a first boss, the first boss is provided with a pressing portion, the top of the buoy cover is provided with a second boss, the mounting seat sequentially penetrates through the first boss and the second boss, the inner side of the second boss is provided with a containing cavity communicated with the inner cavity, and the first boss is located in the containing cavity and works as the buoy floats upwards to a preset position and is triggered by the pressing portion.

Further, a plurality of reinforcing ribs are extended outwards on the buoy cover and divergently from the second bosses.

Furthermore, a protective cover used for covering the microswitch is arranged on the second boss.

Furthermore, a plurality of salient points are symmetrically arranged at the bottom of the buoy.

The utility model aims at providing a dish washer, include the base, and locate as above overflow alarm device on the base.

The utility model has the advantages that:

the utility model provides an overflow alarm device and dish washer, through will be used for installing the mounting seat of micro-gap switch and chassis cover integrated into one piece, so effectively protected the fastness of micro-gap switch installation, guaranteed the exactness of its test; the buoy cover is designed to be of a long plate-shaped structure, so that the volume is smaller, the occupied space is smaller, the material is saved, and meanwhile, the buoy cover is installed through a buckle structure, and is convenient to disassemble and assemble; therefore, the utility model provides an overflow alarm device has the advantage that detects the precision height, with low costs and simple to operate.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic view of an overall structure of an overflow alarm device provided in an embodiment of the present invention;

fig. 2 is a schematic diagram of an explosion structure of an overflow alarm device in an embodiment of the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 2;

fig. 4 is a schematic structural view of a float cover according to an embodiment of the present invention;

fig. 5 is a schematic view of an oblique bottom view of the float according to the embodiment of the present invention;

fig. 6 is a schematic sectional structure diagram of an overflow alarm device in an embodiment of the present invention;

FIG. 7 is an exploded view of a dishwasher in accordance with an embodiment of the present invention;

reference numerals: 1. a chassis cover; 11. a mounting seat; 111. assembling a groove; 112. limiting convex ribs; 12. enclosing plates; 13. a drainage guide hole; 2. a microswitch; 21. a contact; 3. a float; 31. mounting grooves; 32. a straight side surface; 33. a circular arc side surface; 34. salient points; 35. a first boss; 36. a pressing part; 4. a float cover; 41. an inner cavity; 42. a second boss; 43. a protective cover; 44. reinforcing ribs; 5. a buckle structure; 51. a rib plate; 511. a horizontal plate; 512. a vertical plate; 52. a hook; 521. an inclined surface; 53. a gap; 54. a slot; 55. a card slot; 56. a U-shaped plate; 10. a dishwasher; 101. a housing; 102. a base.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. 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 to 6, an overflow alarm device provided in an embodiment of the present invention includes a chassis cover 1, a micro switch 2, a buoy 3 and a buoy cover 4, wherein a mounting seat 11 is integrally formed on the chassis cover 1, an assembly groove 111 is formed on the mounting seat 11, and the micro switch 2 is clamped in the assembly groove 111; mount pad 11 and chassis lid 1 integrated into one piece have effectively guaranteed like this that micro-gap switch 2 installs the fastness on mount pad 11 to guarantee that micro-gap switch 2 carries out the precision that detects.

The buoy 3 is provided with a mounting groove 31 for the mounting seat 11 to pass through, the buoy cover 4 is covered on the buoy 3, the buoy 3 is sleeved on the mounting seat 11 and is positioned between the chassis cover 1 and the buoy cover 4, the mounting seat 11 sequentially passes through the buoy 3 and the buoy cover 4, the inner side of the buoy cover 4 is provided with an inner cavity 41, and the buoy 3 can move up and down in the inner cavity 41 relative to the micro switch 2 and trigger the micro switch 2 when rising to a preset position. The buoy cover 4 is in a long plate-shaped structure, and two parallel straight side surfaces of the buoy cover 4 are respectively connected with the 4 chassis covers 1 through buckle structures. Make things convenient for the installation of buoy cover 4 through buckle structure 5, buoy cover 4 is used for playing certain guard action to buoy 3, triggers micro-gap switch 2 after 3 buoys rise the certain distance, and micro-gap switch 2 produces feedback signal, makes dish washer in time get into the self-protection state, effectively avoids the dish washer damage.

In this embodiment, the structure of the float 3 is matched with that of the float cover 4, and the float 3 and the float cover 4 are both in the shape of a substantially long plate. Specifically, the sides of the float cover 4 and the float 3 each include: two straight side surfaces 32 which are arranged in parallel relatively, and two circular arc side surfaces 33 which are respectively connected with two ends of the two straight side surfaces 32, wherein the inner cavity 41 of the buoy cover 4 is matched with the buoy 3; this is done to reduce the amount of material used for the float 3 and the float cover 4 to save costs, while providing a foolproof effect relative to the prior art circular float 3 and float cover 4.

In the embodiment, the mounting seat 11 for mounting the microswitch 2 and the chassis cover 1 are integrally formed, so that the mounting firmness of the microswitch 2 is effectively protected, and the test accuracy is ensured; the buoy cover 4 is designed to be of a long plate-shaped structure, so that the size is smaller, the occupied space is smaller, the material is saved, and meanwhile, the buoy cover 4 is installed through a buckle structure, so that the buoy cover is convenient to disassemble and assemble; therefore, the overflow alarm device of the embodiment has the advantages of high detection precision, low cost and convenience in installation.

As shown in fig. 1 and 2, in the present embodiment, the surface of the chassis cover 1 is inclined downward toward the middle, and the overflow alarm device composed of the float 3, the micro switch 2 and the float cover 4 is located at the inclined low position, so that when water leakage occurs, water flow can rapidly flow from high to low to the overflow alarm device, so that the float 3 rises as soon as possible due to water leakage, and the timeliness of triggering the micro switch 2 by the float 3 is improved.

And, two drainage dredging holes 13 are respectively arranged on the chassis cover 1 and at two sides of the overflow alarm device, the drainage dredging holes 13 are surrounded by hollow columns, the height of the hollow columns is higher than the height of the buoy 3 which rises to trigger the microswitch 2, but is less than the height around the chassis cover 1, thus ensuring that the buoy 3 rises to trigger the microswitch 2 due to water leakage, meanwhile, when the water leakage continues to accumulate on the chassis cover 1 and overflows the height of the hollow columns, the water leakage can not flow around the chassis cover 1, but is discharged through the drainage dredging holes 13, thus the water leakage only exists on the chassis cover 1, and the electric devices in the dish washer are effectively protected from being damaged.

As shown in fig. 3 and 4, in the present embodiment, the two straight side surfaces 32 of the float cover 4 are respectively connected with the chassis cover 1 through the snap structure 5. The snap structures 5 on both sides are the same, and only one is described here. Specifically, the fastening structure 5 includes a rib 51 disposed on the chassis cover and protruding toward the float cover 4, a hook 52 disposed on the rib 51, an insertion slot 54 disposed on the edge of the straight side 32 of the float cover 4 for inserting the rib 51, and a locking slot 55 disposed outside the insertion slot 54 for locking the hook 52. The mount 11 is centered between the two ribs 51. The rib 51 is provided on the side of the straight side 32 of the float cover 4, which facilitates the installation of the float cover 4. Also, the width between the two straight side surfaces 32 of the float 3 is smaller than the width of the two straight side surfaces 32 of the float cover 4. Thus, the rib 51 is inserted into the insertion groove 54 of the float cover 4 from both sides of the float 3 avoiding the float 3. The buoy 3 is designed into the shape, so that the occupied size is small, a clearance structure for the rib plate 51 to penetrate through is not needed to be additionally arranged, the processing procedures are reduced, and the assembly is simpler. After the rib plate 51 extends into the slot 54, the rib plate 51 is fixedly connected with the buoy cover 4 through the matching of the clamping groove 55 and the clamping hook 52, and the clamping structure is easy to disassemble and assemble.

Specifically, the rib plate 51 is in an inverted 'U' -shaped structure, the hook 52 is formed by extending the center of a horizontal plate 511 of the inverted 'U' -shaped rib plate 51 downwards, and a gap 53 is formed between the hook 52 and two vertical plates 512 of the inverted 'U' -shaped rib plate, that is, the rib plate 51 and the hook 52 form an E-shape inverted on the chassis cover 1, the hook 52 is arranged in the middle, and the gap 53 is formed between the hook 52 and the vertical plates 512, and the gap 53 provides an elastic deformation space for the hook 52, so that the hook 52 can be more conveniently mounted and separated from the slot 55.

Further, as shown in fig. 3 and 4, the hook 52 is L-shaped, that is, the bottom of the hook has a leg extending outward, and the upward top surface of the leg is an inclined surface 521. When the rib 51 is gradually inserted into the slot 54, the inclined surface 521 on the locking leg can smoothly slide along the edge of the locking slot 55, and the locking hook 52 is conveniently extruded and deformed, so that the locking hook 52 can be smoothly locked into the locking slot 55.

Specifically, as shown in fig. 4, a U-shaped plate 56 is disposed on the float cover 4, the U-shaped plate 56 and the float cover 4 define a slot 54, and a slot 55 is disposed on the U-shaped plate 56, wherein the slot 54 and the slot 55 are opened in a direction perpendicular to each other. After the rib 51 is inserted into the slot 54, the hook 52 is clamped into the clamping slot 55, and when the buoy cover 4 needs to be detached, an external force is applied to the hook 52 through the clamping slot 55 under the action of an external force, so that the hook 52 is closed to the direction close to the buoy cover 4 and deformed in the direction, and thus the hook 52 is separated from the clamping slot 55, and the buoy cover 4 has the advantage of convenience in disassembly and assembly.

In this embodiment, four enclosing plates 12 are arranged on the chassis cover 1 at intervals, the four enclosing plates 12 are arc-shaped plates, the four enclosing plates 12 enclose a limiting space, and the buoy cover 4 is located in the limiting space. Four enclosing plates 12 are symmetrically arranged at the intersection of the straight plane and the arc plane of the buoy cover 4. The four closure plates 12 and the hooks 52 cooperate with each other to stably mount the float cover 4 on the chassis cover 1.

In this embodiment, the top of the buoy 3 is provided with a first boss 35, the first boss 35 is provided with a pressing portion 36, the top of the buoy cover 4 is provided with a second boss 42, the mounting seat 11 sequentially passes through the first boss 35 and the second boss 42, the inner side of the second boss 42 is provided with an accommodating cavity communicated with the inner cavity 41, and the first boss 35 is located in the accommodating cavity and triggers the micro switch 2 through the pressing portion 36 when the buoy 3 floats upwards to a predetermined position. As shown in fig. 6, after the float cover 4 and the chassis cover 1 are installed, a certain gap is formed between the two, which facilitates the inflow of water leakage, the micro switch 2 is provided with a contact 21, under the normal condition that no water leakage occurs, a certain gap is formed between the pressing part 36 and the contact 21, and after the water leakage occurs in the dishwasher, the pressing part 36 pushes against the contact 21 during the rising process of the float 3, so as to trigger the micro switch 2 to give out the water leakage alarm.

As shown in fig. 5, in the present embodiment, four protruding points 34 are provided at the bottom of the buoy 3, i.e. at a side close to the chassis cover 1, the four protruding points 34 are symmetrically arranged, and the four protruding points 34 are used for providing a certain gap between the buoy 3 and the chassis cover 1, so that water leakage can enter the gap conveniently, and when the water leakage is accumulated to a certain extent, the buoy 3 is lifted.

In this embodiment, the float 3 is made of a polystyrene foam material. This has the advantage of being lightweight and waterproof, thus ensuring that the buoy 3 rises as quickly as possible.

In this embodiment, a plurality of ribs 44 extend from the second boss 42 and diverge outwardly from the float cover 4. A plurality of meshes 45 are distributed on the buoy cover 4, so that materials are saved, and meanwhile, whether the buoy 3 can work normally or not is convenient to observe during performance detection. However, the coupling strength of the float cover 4 is weakened by the plurality of meshes 45, and the reinforcing ribs 44 are provided to increase the coupling strength of the float cover 4.

As shown in fig. 4 and 6, a protective cover 42 for covering the micro switch 2 is provided on the float cover 4, and after the micro switch 2 is mounted on the mounting seat 11, a part of the micro switch is exposed outside the mounting seat 11, and the exposed part is covered by the protective cover 42, thus having a protective effect on the micro switch 2.

As shown in fig. 3, a plurality of limiting ribs 112 are provided on the mounting base 11, the limiting ribs 112 abut against the surface of the micro switch 2, and are used for stably installing the micro switch 2 in the assembling groove 111, and the limiting ribs 112 can be provided in the upper and lower direction, the left and right direction, and the front and back direction of the assembling groove 111, so as to ensure the firmness of installing the micro switch 2.

In this embodiment, the chassis cover 1 is injection molded from a polypropylene thermoplastic, and the float cover 4 is also injection molded from a polypropylene thermoplastic.

Referring to FIG. 7, the present embodiment further provides a dishwasher 10, which comprises a housing 101, a bladder assembly (not shown), a base 102, and an overflow alarm device disposed on the base, wherein the overflow alarm device is the above-mentioned overflow alarm device. Because the dish washer has overflow alarm device, can handle the condition of leaking accurately, effectively guaranteed the normal use of dish washer. Of course, the overflow alarm device of the utility model is not only limited to be used on the dish washer, but also can be applied to other washing electrical equipment needing to detect water leakage.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The utility model provides an overflow alarm device, includes chassis lid, micro-gap switch, buoy and buoy cover, its characterized in that: the chassis cover is integrally formed with a mounting seat, the buoy is sleeved on the mounting seat, the buoy cover is covered on the buoy, the inner side of the buoy cover is provided with an inner cavity, the mounting seat sequentially penetrates through the buoy and the buoy cover, the mounting seat is provided with an assembly groove, and the microswitch is clamped in the assembly groove; the buoy can move up and down relative to the microswitch in the inner cavity and trigger the microswitch when the buoy rises to a preset position; the buoy cover is of a long plate-shaped structure, and two parallel straight side surfaces of the buoy cover are connected with the chassis cover through buckle structures respectively.

2. An overflow warning device as claimed in claim 1, wherein: the buckle structure comprises rib plates which are arranged on the chassis cover and face the buoy cover, hooks which are arranged on the rib plates, slots which are arranged on the straight side edges of the buoy cover and used for inserting the rib plates, and clamping grooves which are arranged on the outer sides of the slots and used for clamping the hooks.

3. An overflow warning device as claimed in claim 2, wherein: the rib plate is of an inverted U-shaped structure, the clamping hook is formed by extending downwards from the center of a horizontal plate of the inverted U-shaped rib plate, and a gap is formed between the clamping hook and two vertical plates of the inverted U-shaped rib plate.

4. An overflow warning device as claimed in claim 3, wherein: the bottom of the clamping hook is provided with a clamping pin extending outwards, and the upward top surface of the clamping pin is an inclined surface.

5. An overflow warning device as claimed in claim 1, wherein: four enclosing plates are arranged on the chassis cover at intervals, the four enclosing plates are enclosed to form a limiting space, and the buoy cover is located in the limiting space.

6. An overflow warning device as claimed in claim 1, wherein: the utility model discloses a buoy with the characteristics of inner chamber intercommunication, including buoy cover, mount pad, first boss, second boss, buoy top, the buoy top is equipped with first boss, be equipped with on the first boss and press the splenium, buoy top is equipped with the second boss, the mount pad passes in proper order first boss with the second boss, second boss inboard be equipped with the holding chamber of inner chamber intercommunication, first boss is located the holding intracavity just works as when buoy come-up to preset position through press the splenium to trigger micro-gap switch.

7. An overflow warning device as claimed in claim 6, wherein: the buoy covers and is formed by extending a plurality of reinforcing ribs outwards through the second bosses.

8. An overflow warning device as claimed in claim 7, wherein: and a protective cover for covering the microswitch is arranged on the second boss.

9. An overflow warning device as claimed in claim 1, wherein: the bottom of the buoy is symmetrically provided with a plurality of salient points.

10. A dishwasher, comprising a base, characterized in that: an overflow alarm device as claimed in any one of claims 1 to 9 is provided on the base.