CN103162499B - Household electrical appliance - Google Patents

Abstract

The present invention is on a kind of household electrical appliance.Household electrical appliance (10), including electrical equipment main body (28), be supported in the drawer type door (20) and governor motion (49) of the electrical equipment main body (28), the governor motion (49) to adjust the door (20) in off position under relative to the electrical equipment main body (28) position relationship.According to the suggestion of the present invention, the governor motion (49) is configured such that the door (20) is rotatably conditioned.

Description

Household electrical appliance

[ technical field ]

The present invention relates to a household appliance, and more particularly, to a household appliance having a drawer-type door.

[ background art ]

The use of drawer-type doors in household appliances is known, for example, in some patent documents, a refrigerator is disclosed: a storage compartment, which is generally located at the middle or lower portion of the refrigerator, is closed and opened by a drawer type door, on which a storage box for placing foods, fruits, and vegetables is installed. The structure of the refrigerator is very common, most of the drawer type doors of the refrigerator are provided with a fixed guide rail and a supporting roller in the box body, a movable guide rail and a sliding roller are arranged on a drawer support, the fixed guide rail is connected with a reinforcing plate fixed in the box body of the refrigerator and is fixed in the box body, the movable guide rail is connected with the door through a metal connecting part, so that the movable guide rail is fastened on the door, and the storage box is arranged on the movable guide rail and enters and exits the storage chamber along with the movable guide rail. When the drawer is used, the sliding idler wheels of the drawer roll in the fixed guide rails of the box body, and the idler wheels of the box body move in a matched mode with the movable guide rails of the drawer support, so that the drawer is opened. Some refrigerators have improved designs of a guide rail and a roller so that a storage box mounted on the guide rail can be largely drawn out while maintaining a horizontal state, so that the entire storage box can be seen to facilitate storage and taking out of food, fruits, and vegetables.

Some errors are inevitable in the actual installation process of the guide rails and the rollers, so that the storage box cannot be maintained in a horizontal state by one hundred percent, the drawer type door also has deviation in the vertical direction relative to the original design, the process is generally not processed within a certain allowable error range, and when the error exceeds the allowable error range, related parts need to be replaced again.

As described above, foods, fruits and vegetables are placed in the storage box fixed to the movable rail connected to the door, and the drawer type door is deviated in a vertical direction due to the minute deformation of the rail and the abrasion of the roller during the long-term use. In order to facilitate the storage and removal of food, fruit and vegetables, users are mostly accustomed to first filling up the space near the drawer door, and the uneven distribution of the objects on the guide rails also increases the likelihood of this occurring. In addition, for the refrigerator which can be pulled out greatly after the design of the guide rail and the roller is improved, the larger the pulling-out range is, the possibility that the guide rail is deformed due to the uneven distribution of the articles on the guide rail is also greatly increased, and the horizontal height of the guide rail close to the drawer-type door is lower than the horizontal height of the guide rail far away from the drawer-type door, so that the drawer-type door is inclined in the vertical direction.

In order to prevent the cold air inside the storage chamber from leaking to the outside, a gasket having a magnetic attraction function with the refrigerator body is provided along the edge portion of the back surface of the drawer door in order to sufficiently perform a heat insulation function, and it is required that the gasket is in close contact with the front surface of the refrigerator main body when the drawer door is closed. When the drawer type door is inclined in a vertical direction, a gap may occur between the gasket and the refrigerator main body, thereby causing a serious effect of leakage of cool air. In addition, the appearance of the refrigerator is also affected due to the inclination of the door.

[ summary of the invention ]

The invention aims to provide a household appliance, so that the problem that the door of the household appliance is not tightly closed due to errors of an assembly process or long-time use can be effectively solved.

In order to achieve the above object, the present invention provides a home appliance including an appliance main body, a drawer type door supported to the appliance main body, and an adjustment mechanism to adjust a positional relationship of the door with respect to the appliance main body in a closed state, the adjustment mechanism being provided such that the door is rotatably adjusted. The door can be adjusted in a rotating way, so that the door which is inclined for various reasons can be recovered to a balance position without error or acceptable error from the inclined state, and the occurrence of adverse conditions such as leakage of cold air of the refrigerator is avoided.

Other features which are considered as characteristic for the invention, individually or in combination with other features, are set forth in the following appended claims.

Optionally, the adjustment mechanism is arranged such that the door is rotatably adjustable about a horizontal axis. In the error of the assembling process, there is a high possibility that the error is generated by the unnecessary rotation of the door about the horizontal axis and the vertical axis, but the inclination of the door due to the long-term use is mostly the error generated by the rotation of the door about the horizontal axis. The door is rotatably adjustable about a horizontal axis to eliminate errors caused by unnecessary rotation about the horizontal axis. Of course, the door can be adjusted rotatably about a vertical axis to also eliminate errors corresponding thereto.

Optionally, the household appliance further comprises a pair of support brackets, the support brackets comprise a first part and a second part which are connected, and the adjusting mechanism realizes the rotation adjustment of the door by adjusting the relative positions of the first part and the second part of the support brackets. Because one end of the supporting frame is connected with the door, the relative position of the first part and the second part of the supporting frame is adjusted, and the rotation adjustment of the door can be conveniently realized.

Optionally, the adjusting mechanism comprises at least one positioning hole on the first portion or the second portion of the support frame, at least one adjusting hole, and at least two connecting devices connecting the first portion and the second portion through the positioning hole and the adjusting hole, respectively. The adjusting mechanism adopting the structure is ingenious in design and easy to realize in process.

Optionally, the adjusting hole is a waist-shaped hole. The relative positions of the mounting piece and the movable guide rail are changed by adjusting the position of the screw in the waist-shaped hole, and the mounting piece is fixedly mounted on the door, so that the rotation of the mounting piece relative to the movable guide rail can cause the door to rotate in the vertical direction. The advantage of using a kidney-shaped hole is that the inclination of the door can be adjusted within a certain range rather than a certain value, because the exact value of the inclination error of the door is unpredictable, but the error range is predictable, and the error is eliminated by using a kidney-shaped hole according to the actual situation.

Alternatively, a line connecting the fixed holes of the pair of support frames constitutes a rotation shaft to which the door is rotatably adjusted.

Optionally, the adjusting mechanism (49) comprises one adjusting hole and one fixing hole, and the one adjusting hole (57) is an arc-shaped hole which is bent towards the one fixing hole (45). Compared with the waist-shaped hole, the arc-shaped hole is adopted, so that the inclination amplitude of the door can be adjusted within a larger range.

Optionally, the adjusting hole (57) is an arc hole and is a segment of a circle with the center of the fixed hole (45) as the center. In the aspect of adjustable range, the arc-shaped hole is larger than the waist-shaped hole, and the fixed hole is the largest adjustable range in the arc-shaped hole and can be directly adjusted to two ends of the arc-shaped hole.

Optionally, the second portion includes intersecting fasteners and mountings to facilitate adjustment of the tilt of the door.

Optionally, the adjusting mechanism comprises at least two fixing holes, at least one adjusting hole and at least two connecting devices for connecting the first part and the second part through the fixing holes and the adjusting holes, and the arrangement is firm and the adjustment is convenient.

Optionally, the fixing member and the mounting member are perpendicular to each other, which is more advantageous for adjusting the inclination of the door and also for securing the connection between the door and the guide rail.

Optionally, the fixing member is attached to the door, and the mounting member is attached to the first portion.

The construction of the present invention and other objects and advantages thereof will be more apparent from the following description of the preferred embodiments taken in conjunction with the accompanying drawings.

[ description of the drawings ]

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. Wherein,

fig. 1 is a schematic perspective view of a home appliance according to a preferred embodiment of the present invention.

Fig. 2 is a schematic view showing a structure of a door and a movable rail coupling part of a home appliance according to a preferred embodiment of the present invention.

Fig. 3 is a schematic structural view of a movable rail according to a preferred embodiment of the present invention.

Fig. 4 is a perspective view of a support shelf according to a preferred embodiment of the present invention.

Fig. 5 is a perspective view of a support shelf according to another preferred embodiment of the present invention.

[ detailed description of the invention ]

Referring to fig. 1, the household appliance is a refrigerator as an example. A refrigerator 10 is provided having insulated cabinets 12 and 14 defining two storage compartments, including a refrigerating compartment 12 and a freezing compartment 14, distributed one above the other, in this embodiment, the upper and lower portions of the storage compartments may also be provided as both refrigerating compartments or both freezing compartments or variable temperature compartments.

In the embodiment, the refrigerating chamber 12 includes a refrigerating chamber inner wall 30 and a selectively closable or openable door 26 at a front end opening, and the inner wall 30 and the door 26 define a refrigerating space of the refrigerating chamber 12. The door 26 is connected to the refrigerator case 28 by an upper hinge and a lower hinge (not shown) fixed to one side of the door 26, and is rotated in a horizontal direction to be opened and closed with a line connecting the upper hinge and the lower hinge as an axis.

As can be seen from fig. 1, the door 20 of the freezing compartment 14 in the present embodiment is of a drawer type, is not directly connected to the refrigerator case 28, and can be pulled outward in the direction 22 in fig. 1, and the drawer type door 20 includes a door having an inner liner 23 formed by non-cutting molding of a plastic plate, an outer panel 32 connected to the inner liner 23 as a main body of the door 20 and serving as an outer skin, and an insulating layer 25 foamed in an intermediate space defined between the inner liner 23 and the outer panel 32, and similarly to the refrigerating compartment 12, the inner wall 16 of the freezing compartment 14 and the inner liner 23 of the drawer type door 20 define a freezing space 24 of the freezing compartment 14.

The first portions 18 of the support frames, which are fixed to both sides of the door 20 and are parallel to each other, are supported by two fixed guide rails and two fixed rollers (not shown) fixed to the inner wall 16 of the freezing space, thereby supporting the weight of the door 20, the storage box between the movable guide rails, which are parallel to each other, for placing the food items, and the food items placed in the storage box.

Referring to fig. 2 and 3, only a first portion 18 of the support frame is shown in fig. 2, which is connected to a door 20, and the other, parallel movable rail, which is substantially bar-shaped and perpendicular to the surface of the door 20, is not shown. In order to prevent the cold air inside the storage compartment from leaking to the outside, a gasket 31 having a magnetic attraction function with the cabinet is provided along an edge portion of the rear surface of the door 20.

In this embodiment, the household appliance further comprises a pair of support brackets 8, the support brackets 8 comprising a first portion 18 and a second portion 40 connected, the adjustment mechanism 49 enabling the rotational adjustment of the door 20 by adjusting the relative position of the first portion 18 and the second portion 40 of the support brackets. The first portion 18 of the support bracket is connected to the door 20 by a second portion 40 of the support bracket, and on one side of the first portion 18 of the support bracket and adjacent to one side of the door 20 is a connecting end of the first portion 18 of the support bracket, and the connecting end of the first portion 18 of the support bracket is provided with at least three locking holes 19, and the inner walls of the locking holes 19 are internally threaded to facilitate direct installation of screws in the locking holes 19 to connect the first portion 18 of the support bracket to the second portion 40 of the support bracket. The locking hole 19 is circular and the center points of the three locking holes 19 are located on the same straight line in this embodiment, which is parallel to the surface of the door 20 in the longitudinal direction.

Referring to fig. 4, the second portion 40 of the support bracket of fig. 4 comprises a fixing member 42 and a mounting member 41, the fixing member 42 is connected to the door 20, the mounting member 41 is connected to the first portion 18 of the support bracket, the fixing member 42 and the mounting member 41 intersect at a folding line 48 (see fig. 3) and are perpendicular to each other, the folding line 48 is parallel to a line connecting the center points of the three locking holes 19, the fixing member 42 and the mounting member 41 are substantially rectangular, and the fixing member 42 is slightly longer than the mounting member 41, so that a step is formed at the junction. To avoid unnecessary punctures and scratches, the edges of the fixing member 42 and the mounting member 41 are rounded.

The fixing member 42 is provided with three fixing holes 43, 51 and 52, and the centers of the three fixing holes 43, 51 and 52 are located on the same connecting line, and the connecting line is parallel to the folding line 48. When the components are assembled, firstly, the reinforcing plate is put in place at one side of the refrigerator lining, passes through the fixed holes 43, 51 and 52 on the fixing piece 42 through screws and then passes through the matching holes on the refrigerator lining and the reinforcing plate, so that the fixing piece 42, the reinforcing plate and the refrigerator lining 23 are fixedly connected, and the reinforcing plate is firmly fixed in the box body through the foaming and curing treatment of the refrigerator heat-insulating layer.

The mounting member 41 is provided with two fixing holes 45, 46 and an adjusting hole 47 for adjusting a distance between the door 20 and the home appliance main body 28 in a front-rear direction in a closed state.

In this embodiment, the adjustment holes are waist-shaped holes 47, the centers of the fixing holes 45, 46 and the waist-shaped holes 47 respectively correspond to the three locking holes 19 at the connecting end of the first portion 18 of the support bracket, the middle of the waist-shaped hole 47 extends in a direction perpendicular to the folding line 48, and the connecting line of the fixing holes 45, 46 and the center of the waist-shaped hole 47 is parallel to the folding line 48. The waist-shaped hole 47 is close to one of the two fixed holes 45, 46, in this embodiment, the waist-shaped hole is close to the fixed hole 46 below, and is located above the fixed hole 46, that is, between the fixed holes 45, 46, and the waist-shaped hole 47 may also be arranged below the fixed hole 46.

In normal assembly and use conditions, the screws are only connected to the first portion 18 of the support bracket through the positioning holes 45, 46, and adjustment through the slotted holes 47 is required when the door 20 is tilted in the vertical direction due to assembly errors or rail deformation and roller wear after prolonged use, as described in the background of the invention. The screws fixed in the fixing holes 45 of the mounting member 41 are unscrewed, the screws in the fixing holes 46 are unscrewed, so that the door 20 can be rotated around the connecting line of the centers of the two fixing holes 45 by means of the two screws in the fixing holes 45 of the mounting member 41 on both sides and the corresponding support of the first part 18 of the support bracket as an axis until the door 20 is rotated to the originally set error-free position in the vertical direction, the screws are inserted into the kidney-shaped holes 46, and the mounting member 41 and the first part 18 of the support bracket can be fixed together because the outer surfaces of the screws are threaded and are matched with the inner threads of the locking holes 19 of the first part 18 of the support bracket.

When the upper portion of the door 20 deviates from the storage chamber, the screw inserted into the kidney-shaped hole 46 is close to the left-edge center hole of the kidney-shaped hole 47 in fig. 3 through rotation adjustment, and when the lower portion of the door 20 deviates from the storage chamber, the screw inserted into the kidney-shaped hole 46 is close to the right-edge center hole of the kidney-shaped hole 47 in fig. 3 through rotation adjustment. The vertical deflection of the door 20 is adjusted by setting the position of the screw within the slotted hole 46. The line connecting the pair of fixed holes 45 of the support frame 8 constitutes a rotation axis on which the door 20 is rotatably adjusted.

In another embodiment, the adjustment mechanism 49 comprises a fixing hole 45, an adjustment hole 47, 57 in the second portion 40 of the support and two connecting means connecting the first portion 18 of the support to the second portion 40 of the support through the fixing hole 45 and the adjustment hole 47, 57, in which embodiment the connecting means are fixed directly to the first portion 18 and are formed integrally with the first portion 18, the locking hole 19 is no longer provided in the first portion 18, and the connecting means is a projection fixed to the first portion 18 and which can just pass through the fixing hole 45 and the adjustment hole 47, 57. The surfaces of the connection means passing through the adjustment holes 47, 57 are provided with threads, and the adjustment holes 47, 57 can be fixed by nuts.

Next, referring to fig. 5, fig. 5 shows another embodiment of the second portion 40 of the holder, in which the waist-shaped hole 47 provided in the mounting member is replaced by an arc-shaped hole 57, the arc-shaped hole 57 is bent toward the fixed hole 45, the distance between the waist-shaped hole 47 and the hole center of the fixed hole 45 is not equal, the distance between the waist-shaped hole 47 and the two ends of the waist-shaped hole is farther, and the positions of the three locking holes 19 on the first portion 18 of the holder are fixed, so that the structure can only make the rotational adjustment distance be in the millimeter level, for example, 1mm to 3mm, but cannot adjust the farther distance. The arc-shaped holes 57 are used for replacing the waist-shaped holes 47, so that the difference of the distances from each point on the arc-shaped holes 47 to the hole center of the fixed holes 45 is greatly reduced, and the adjustable amplitude is correspondingly increased.

Preferably, the arc hole 57 is an arc hole, the arc of the arc hole is a segment of a circle with the center of the hole of the fixed hole 45 as the center of the circle, the distances from each point on the arc hole 47 to the center of the hole of the fixed hole 45 are equal, that is, the screw can be inserted into the center hole of the right edge or the center hole of the left edge of the arc hole 57, so that the door 20 can be adjusted by a large range in the vertical direction.

The adjusting holes 47 and 57 in fig. 4 and 5 are provided near the lower fixed hole 46, but in practice, they may be provided near the upper fixed hole 45 without affecting the adjusting effect.

In the above embodiment, the locking holes 19 are located in the first portion 18 of the support bracket and the adjustment mechanism 49 is located in the second portion 40 of the support bracket, and in another embodiment, the locking holes 19 are located in the second portion 40 of the support bracket and the adjustment mechanism 49 is located in the first portion 18 of the support bracket, as for the construction of the adjustment mechanism 49 and the manner of connection to the first portion 18, the same as in the previous embodiment.

In another embodiment of the present invention, the adjusting mechanism 49 is configured to allow the door 20 to be rotatably adjusted about a vertical axis, and in the above embodiments, the supporting frame 8 is disposed at the left and right sides of the inner side of the door 20, and it is only necessary to dispose the supporting frame 8 at the upper and lower portions of the inner side of the door to allow the door 20 to rotate about a vertical axis. The design of the interior of the appliance is changed adaptively. The adjustment mechanism 49 is constructed and arranged in the same manner as in the above embodiment.

Claims (10)

1. A household appliance (10) comprising an appliance body (28) and a drawer-type door (20) supported to the appliance body (28) characterized in that: further comprising an adjustment mechanism (49), the adjustment mechanism (49) being provided such that the door (20) is rotatably adjusted to adjust a positional relationship of the door (20) with respect to the appliance main body (28) in a closed state; the household appliance further comprises a pair of supporting brackets (8), the supporting brackets (8) comprise a first part (18) and a second part (40) which are connected, and the adjusting mechanism (49) realizes the rotation adjustment of the door (20) by adjusting the relative positions of the first part (18) and the second part (40) of the supporting brackets; the adjusting mechanism (49) comprises at least one positioning hole (45) on the first part (18) or the second part (40) of the support frame, at least one adjusting hole (47, 57) and at least two connecting devices for connecting the first part (18) and the second part (40) through the positioning hole (45) and the adjusting hole (47, 57), respectively.

2. The household appliance according to claim 1, wherein: the adjustment mechanism (49) is arranged such that the door (20) is rotatably adjustable about a horizontal axis.

3. The household appliance according to claim 1, wherein: the connection of a pair of positioning holes (45) on the support frame (8) forms a rotating shaft for the rotation of the door (20).

4. The household appliance according to claim 1, wherein: the adjusting holes (47, 57) are waist-shaped holes.

5. The household appliance according to claim 1, wherein: the adjusting mechanism (49) comprises one adjusting hole and one fixing hole, and the adjusting hole (57) is an arc-shaped hole which is bent towards the fixing hole (45).

6. The household appliance according to claim 5, wherein: the adjusting hole (57) which is an arc-shaped hole and is a section of a circle which takes the hole center of the fixed hole (45) as the circle center.

7. The household appliance according to claim 1, wherein: the second portion (40) comprises intersecting fasteners (42) and mounting elements (41).

8. The household appliance according to claim 7, wherein: the adjustment mechanism (49) comprises at least two fixing holes (45, 46) on the mounting part (41), at least one adjustment hole (47, 57) and at least two connecting devices for connecting the first part (18) and the second part (40) through the fixing holes (45, 46) and the adjustment holes (47, 57), respectively.

9. The household appliance according to claim 7, wherein: the fixing member (42) and the mounting member (41) are perpendicular to each other.

10. A household appliance as claimed in claim 7, 8 or 9, characterized in that: the fixing member (42) is attached to the door (20), and the mounting member (41) is attached to the first portion (18).