Embedded dual-axis and dual-slide switch door structure and switch door method

Abstract

The present invention discloses an embedded double-axis double-slideway door opening and closing structure and a door opening and closing method thereof. The embedded furniture includes a box body, and a door body is hinged to the outside of the box body through a hinge structure. The upper hinge plate is fixed on the box body above the door body and adjacent to the door body; the upper hinge plate and the top end of the door body are hinged through an upper double-axis double-slideway structure, and the upper double-axis double-slideway structure includes a double-rotating shaft structure and a double-arc groove structure; the double-rotating shaft structure includes an inner and an outer rotating shaft, and the double-rotating shaft structure is connected upward to the upper hinge plate; the double-arc groove includes a first and a second arc groove, and the inner rotating shaft extends into the first arc groove; the outer rotating shaft extends into the second arc groove; the double-arc groove structure is arranged on the top surface of the door body; the center of the first arc groove is located at the outer end of the second arc groove, and the center of the second arc groove is located at the outer end of the first arc groove; by adopting the structure and method of the present invention, during the process of the door body rotating and opening, there will be no interference between the door body and the box body when opening and closing the door, and the door body will not extend outwards beyond the box body when opening and closing the door.

Description

Technical Field

[0001] The invention relates to the technical field of refrigerators, and in particular to a structure and method for opening and closing a door of an embedded furniture having a box body and a hinged door body. Background Art

[0002] With the development of society, people's quality of life has gradually improved, and embedded design has begun to be integrated into home life. As the name suggests, embedded design is to embed frequently used home appliances into the installation slot to achieve invisible and practical effects. Embedded refrigerators have become one of the mainstream forms of refrigerators in the market.

[0003] When a traditional refrigerator is opened, the door will extend outwards beyond the refrigerator body. For example, when the door is opened to the right, the right end of the door will extend to the right beyond the right wall of the refrigerator body. Such a door opening structure requires reserved door opening space at the placement of the refrigerator. If the reserved space is not enough, it will not only affect the opening range of the refrigerator door, but also damage the surface of the refrigerator door, affecting its aesthetics. Especially in the overall home layout, it not only wastes space, but also makes the indoor space look untidy, uncoordinated and unsightly.

[0004] When the door is opened to form a 90-degree angle with the cabinet, it no longer hinders the user from taking items into the refrigerator. Therefore, it is necessary to design a door opening and closing structure in which one end of the door shaft does not extend beyond the cabinet when the door is opened to form a 90-degree angle with the cabinet. If the hinge axis between the door and the cabinet is moved a certain distance toward the middle of the cabinet (inside in the width direction) (the width of the door needs to be reduced accordingly, otherwise the free end of the door will extend beyond the cabinet when it rotates),

[0005] It can be easily ensured that the door body does not exceed the box body in the width direction when the door is opened 90 degrees. However, since the hinge axis moves a certain distance toward the middle of the box body, a part of the box body space on the right side of the hinge axis cannot be blocked by the door body after the door is closed. Obviously, this solution cannot be adopted.

[0006] Moving the hinge axis inward (towards the middle of the box width) can make the door body move relatively inward after rotation. However, when the door body is rotated to open, the door body outside the hinge axis will interfere with the box body and cannot be opened to the fully open state (the door body is opened to a 90-degree angle with the box body).

[0007] The above problems are not unique to built-in refrigerators, but any built-in furniture with a cabinet and a hinged door has the above problems. Summary of the invention

[0008] The object of the present invention is to provide an embedded double-axis double-slide door opening and closing structure, which is used for embedded furniture (such as an embedded refrigerator) having a box body and a hinged door body. When the door is opened, the door body will not interfere with the box body, and the door body will not extend outward beyond the box body when the door is opened.

[0009] To achieve the above object, the present invention provides an embedded dual-axis and dual-slide door opening and closing structure for embedded furniture. The embedded furniture includes a box body. Taking the direction pointing to the middle of the left and right directions of the box body in the closed door state as the inward direction and the opposite direction as the outward direction; a door body is hinged to the outside of the box body through a hinge structure. The hinge structure includes an upper hinge plate and a lower hinge plate. The upper hinge plate is fixed on the box body above the door body and adjacent to the door body, and the lower hinge plate is fixed on the box body below the door body and adjacent to the door body;

[0010] The upper hinge plate is hinged to the top end of the door body through an upper dual-axis and dual-slide structure, and the lower hinge plate is hinged to the bottom end of the door body through a lower dual-axis and dual-slide structure;

[0011] The horizontal cross-sections of the upper dual-axis and dual-slide structure and the lower dual-axis and dual-slide structure are the same;

[0012] The specific structure of the upper dual-axis and dual-slide structure is:

[0013] It includes a dual-rotating shaft structure and a dual-arc groove structure; the dual-rotating shaft structure includes an inner rotating shaft and an outer rotating shaft, and the dual-rotating shaft structure is connected upward to the upper hinge plate;

[0014] The dual-arc groove includes a first arc groove and a second arc groove. The inner rotating shaft extends into the first arc groove and is in sliding fit with the groove wall of the first arc groove; the outer rotating shaft extends into the second arc groove and is in sliding fit with the groove wall of the second arc groove; the dual-arc groove structure is arranged on the top surface of the door body;

[0015] The center of the first arc groove is located at the outer end of the second arc groove, and the center of the second arc groove is located at the outer end of the first arc groove;

[0016] In the closed door state, the inner rotating shaft is located at the inner end of the first arc groove and the outer rotating shaft is located at the center of the first arc groove;

[0017] When the door body is opened to a state at a 45-degree angle with the box body, it is in a semi-open state. In the semi-open state, the inner rotating shaft is located at the center of the second arc groove, and the outer rotating shaft is located at the center of the first arc groove;

[0018] When the door body is opened to a state at a 90-degree angle with the box body, it is in a fully open state. In the fully open state, the inner rotating shaft is located at the center of the second arc groove, the outer rotating shaft is located at the inner end of the second arc groove, and at the same time, the front surface of the door body is located 0 - 5 millimeters inside the outer surface of the box body.

[0019] The present invention also discloses a method for opening and closing the above-mentioned embedded dual-axis and dual-slide door opening and closing structure. When opening the door, manually pull the door body outward;

[0020] During the process of the door body rotating from the closed state to the semi-open state, taking the outer rotating shaft as the rotation center, the door body moves forward away from the box body to ensure that there is no contact interference between the door body and the box body;

[0021] The semi-open state is the position where the rotating shaft switches.

[0022] During the process of the door body rotating from the semi-open state to the fully open state, with the inner rotating shaft as the rotation center, the position where the door body is located after being fully opened is inside the position where the door body is located after being fully opened when there is only one rotating shaft, and is flush with the outer surface of the box or located inside the outer surface of the box.

[0023] When closing the door, manually push the door body inward.

[0024] During the process of the door body rotating from the fully open state to the semi-open state, with the inner rotating shaft as the rotation center.

[0025] During the process of the door body rotating from the semi-open state to the closed state, with the outer rotating shaft as the rotation center.

[0026] The present invention has the following advantages:

[0027] The structure of the present invention is ingenious. When opening the door body, during the rotation process from the closed state to the semi-open state, the outer rotating shaft serves as the axis of rotation of the door body (this is because the outer rotating shaft is located at the outer end of the second arc groove at the beginning of opening the door, as shown in Figure 3 and will not move outward relative to the second arc groove. Since it does not move, it naturally serves as the rotation center; once the rotation starts, under the mutual restriction of the arc groove and the rotating shaft, the rotation axis can only be switched when both the inner and outer rotating shafts are located at the center of the circle, that is, in the semi-open state). During this process, the first arc groove rotates along the fixed inner rotating shaft until the outer end of the first arc groove abuts against the inner rotating shaft, and the first arc groove cannot continue to rotate along the inner rotating shaft.

[0028] When the door body is opened to the semi-open state, because at this time the inner rotating shaft cannot continue to slide relative to the first arc groove, while the outer rotating shaft can slide relative to the second arc groove, the rotation axis of the door body automatically switches to the inner rotating shaft.

[0029] During the process of opening the door body, during the rotation process from the semi-open state to the fully open state, the inner rotating shaft serves as the rotation axis when the door body rotates and opens, and the second arc groove rotates along the outer rotating shaft and reaches the inner end of the second arc groove (close to the inner end in the closed state) when it is fully opened.

[0030] The center of the first arc groove is located inside the second arc groove, and the center of the second arc groove is located inside the first arc groove, so that both the inner rotating shaft and the outer rotating shaft can serve as the rotation center of the door body.

[0031] In summary, by adopting the structure and method of the present invention, during the process of the door body rotating and opening, there will be no interference between the door body and the box body when opening and closing the door, and the door body will not protrude outward beyond the box body when opening and closing the door. Specifically, during the rotation process from the closed state to the half-open state, the outer rotating shaft serves as the rotation axis (rotation center), which ensures that the outer end of the door body quickly moves forward (towards the direction of the refrigerator user) away from the box body at the beginning of opening the door without interfering with the box body and causing the door to not open;

[0032] During the opening process, the rotation center of the door body will automatically switch to the inner rotating shaft in the half-open state. As a result, after the door body is fully opened, the inner and outer positions of the front surface of the door body (the front surface of the door body after being fully opened is the outer end face) will move inward compared to when there is only one rotating shaft. This not only ensures that the door body will not contact and interfere with the box body when opening the door, resulting in the door not being able to open, but also makes the overall position of the door body move inward after being fully opened (compared to having only one rotating shaft), thus providing a basis for ensuring that the door body does not protrude outward from the box body after being fully opened.

[0033] During the opening or closing process of the door, the switching of the rotating shaft does not require the user to deliberately control. The switching of the rotating shaft is an automatic process under the structural limitation of the present invention, and it is as convenient to use as a single-rotating-shaft door body. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 is a schematic structural diagram of the present invention;

[0035] Figure 2 is Figure 1 the A-A cross-sectional view of

[0036] Figure 3 is Figure 1 the enlarged view of part A in

[0037] Figure 4 is the A-A cross-sectional view of Figure 1 in the half-open state;

[0038] Figure 5 is Figure 4 the enlarged view of part B in

[0039] Figure 6 is the A-A cross-sectional view of Figure 1 in the fully open state;

[0040] Figure 7 is Figure 6 the enlarged view of part C in DETAILED DESCRIPTION OF THE INVENTION

[0041] As Figures 1 to 7As shown, the embedded double-axis double-slideway door opening and closing structure of this embodiment is used for an embedded refrigerator (and can also be used for any other furniture with a box body and a hinged door body). The embedded refrigerator includes a box body 1. Taking the direction pointing to the middle of the left and right directions of the box body 1 in the closed door state as the inward direction and the opposite direction as the outward direction; a door body 2 is hinged to the outside of the box body 1 through a hinged structure. The hinged structure includes an upper hinged plate 3 and a lower hinged plate. The upper hinged plate 3 is fixed on the box body 1 above the door body 2 and is adjacent to the door body 2. The lower hinged plate is fixed on the box body 1 below the door body 2 and is adjacent to the door body 2;

[0042] The upper hinged plate 3 is hinged to the top end of the door body 2 through an upper double-axis double-slideway structure, and the lower hinged plate is hinged to the bottom end of the door body 2 through a lower double-axis double-slideway structure;

[0043] The horizontal cross-sections of the upper double-axis double-slideway structure and the lower double-axis double-slideway structure are the same; therefore, in this embodiment, the upper double-axis double-slideway structure is introduced, and the lower double-axis double-slideway structure will not be introduced repeatedly. The figure does not show the lower double-axis double-slideway structure and the lower hinged plate.

[0044] The specific structure of the upper double-axis double-slideway structure is as follows:

[0045] It includes a double-rotating shaft structure and a double-circular arc groove (the circular arc groove serves as the slideway for the shaft movement) structure; the double-rotating shaft structure includes an inner rotating shaft 4 and an outer rotating shaft 5, and the double-rotating shaft structure is connected upward to the upper hinged plate 3;

[0046] The double-circular arc groove includes a first circular arc groove 6 and a second circular arc groove 7. The inner rotating shaft 4 extends into the first circular arc groove 6 and is in sliding fit with the groove wall of the first circular arc groove 6; the outer rotating shaft 5 extends into the second circular arc groove 7 and is in sliding fit with the groove wall of the second circular arc groove 7; the double-circular arc groove structure of the upper double-axis double-slideway structure is arranged on the top surface of the door body 2;

[0047] The center of the first circular arc groove 6 is located at the outer end of the second circular arc groove 7 (referring to the outer end in the closed door state), and the center of the second circular arc groove 7 is located at the outer end of the first circular arc groove 6 (referring to the outer end in the closed door state);

[0048] As Figures 1 to 3 shown, in the closed door state, the inner rotating shaft 4 is located at the inner end of the first circular arc groove 6 and the outer rotating shaft 5 is located at the center of the first circular arc groove 6 (i.e., the outer end of the second circular arc groove 7);

[0049] As Figure 4 and Figure 5 shown, when the door body 2 is opened to a 45-degree angle with the box body 1, it is in the half-open state. In the half-open state, the inner rotating shaft 4 is located at the center of the second circular arc groove 7 (i.e., the outer end of the first circular arc groove 6, and the outer end refers to the outer end in the closed door state), and the outer rotating shaft 5 is located at the center of the first circular arc groove 6;

[0050] As Figure 6 and Figure 7As shown in the figure, the state where the door body 2 is opened at a 90-degree angle to the box body 1 is the fully open state. In the fully open state, the inner rotating shaft 4 is located at the center of the second arc groove 7, and the outer rotating shaft 5 is located at the inner end of the second arc groove 7. At the same time, the front surface of the door body 2 (referring to the front surface in the closed state, and the front surface in the fully open state is at the outermost end of the door body 2) is located 0 - 5 millimeters (including both end values) inside the outer surface of the box body 1.

[0051] With the structure of the present invention, when opening the door body 2, during the rotation process from the closed state to the half-open state, the outer rotating shaft 5 serves as the axis of rotation of the door body 2 (this is because the outer rotating shaft 5 is located at the outer end of the second arc groove 7 at the beginning of opening the door, as Figure 3 shown and will not move outward relative to the second arc groove 7. Since it does not move, it naturally serves as the rotation center; while in other states except the half-open state, it can only rotate around a rotating shaft located at the center of the circle, so that the other rotating shaft can slide relative to its arc groove). During this process, the first arc groove 6 rotates along the fixed inner rotating shaft 4 until the outer end of the first arc groove 6 abuts against the inner rotating shaft 4, and the first arc groove 6 cannot continue to rotate along the inner rotating shaft 4.

[0052] When the door body 2 is opened to the half-open state, since the inner rotating shaft 4 can no longer slide relative to the first arc groove 6 at this time, and the outer rotating shaft 5 can slide relative to the second arc groove 7, the axis of rotation of the door body 2 automatically switches to the inner rotating shaft 4.

[0053] During the process of opening the door body 2, during the rotation process from the half-open state to the fully open state, the inner rotating shaft 4 serves as the axis of rotation when the door body 2 rotates and opens, and the second arc groove 7 rotates along the outer rotating shaft 5 and reaches the inner end of the second arc groove 7 (close to the inner end in the closed state) when it reaches the fully open state.

[0054] The center of the first arc groove 6 is located inside the second arc groove 7, and the center of the second arc groove 7 is located inside the first arc groove 6, so that both the inner rotating shaft 4 and the outer rotating shaft 5 can serve as the rotation center of the door body 2.

[0055] The closing process is the reverse process of the opening process.

[0056] In short, with the structure of the present invention, during the process of the door body 2 rotating and opening, the outer rotating shaft 5 serves as the axis of rotation during the rotation process from the closed state to the half-open state, which ensures that the outer end of the door body 2 quickly moves forward (towards the direction of the refrigerator user) at the beginning of opening the door and will not interfere with the box body 1 and cause the door to not open;

[0057] During the opening process, the rotation center of the door body 2 will automatically switch to the inner rotating shaft 4 in the half-open state. After the door body 2 is fully opened, the inner and outer positions of the front surface of the door body 2 (the front surface of the door body 2 after being fully opened is the outer end surface) will move inward compared to having only one rotating shaft. This not only ensures that the door body 2 will not contact and interfere with the box body 1 when opening the door, resulting in the inability to open the door, but also makes the overall position of the door body 2 move inward after being fully opened (relative to having only one rotating shaft), thus providing a basis for ensuring that the door body 2 does not protrude outward from the box body 1 after being fully opened.

[0058] The present invention also discloses a method for opening and closing the door of the above-mentioned embedded double-shaft and double-slideway door opening and closing structure. When opening the door, manually pull the door body 2 outward;

[0059] During the process of the door body 2 rotating from the closed state to the half-open state, it rotates around the outer rotating shaft 5. This is because at the beginning of this process, the binding force of the first arc groove 6 on the inner rotating shaft 4 is significantly less than the binding force of the second arc groove on the outer rotating shaft 5, as Figure 3 shown. Once the rotation starts, the rotating shaft can and must be switched only when reaching the rotating shaft switching position, that is, the half-open state (both the inner and outer rotating shafts are located at the center of the relative arc groove). The door body 2 moves forward away from the box body 1 to ensure that the door body 2 does not contact and interfere with the box body 1;

[0060] The half-open state is the rotating shaft switching position;

[0061] During the process of the door body 2 rotating from the half-open state to the fully open state, it rotates around the inner rotating shaft 4, so that the position where the door body 2 is located after being fully opened is located inside the position where the door body 2 is located after being fully opened when there is only one rotating shaft (it must be ensured that the door body 2 does not contact and interfere with the box body 1 when opening the door, so it cannot be set at the position of the inner rotating shaft 4, but can only be set near the outer rotating shaft 5), and is flush with the outer surface of the box body 1 or located inside the outer surface of the box body 1.

[0062] When closing the door, manually push the door body 2 inward;

[0063] During the process of the door body 2 rotating from the fully open state to the half-open state, it rotates around the inner rotating shaft 4. This is because at the beginning of this process, the binding force of the first arc groove 6 on the inner rotating shaft 4 is significantly greater than the binding force of the second arc groove on the outer rotating shaft 5, as Figure 7 shown. Once the door body 2 starts to rotate, the rotating shaft can and must be switched only after rotating to the rotating shaft switching position, that is, the half-open state.

[0064] During the process of the door body 2 rotating from the half-open state to the closed state, it rotates around the outer rotating shaft 5. This is because when continuing to close the door in the half-open state, the outer rotating shaft 5 reaches the limit position of movement in the second arc groove 7 and cannot continue to have relative sliding with the second arc groove 7, while the binding force of the first arc groove 6 on the inner rotating shaft 4 drops significantly compared to the beginning of opening the door.

[0065] The above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present invention can still be modified or equivalently replaced, and any modification or partial replacement without departing from the spirit and scope of the present invention, such as interchanging the connection positions of the double-rotating shaft structure and the double-arc grooves (connecting the double-rotating shaft to the door body 2 and arranging the double-arc grooves on the upper hinge plate 3), such equivalent transformations all fall within the protection scope of the present invention. All of them should be covered within the scope of the claims of the present invention.

Claims

1. Embedded double-axis double-slideway door opening and closing structure, used for embedded furniture. The embedded furniture includes a box body. Taking the direction pointing to the middle of the left and right directions of the box body in the closed door state as the inward direction and the reverse direction as the outward direction; a door body is hinged to the outside of the box body through a hinge structure. The hinge structure includes an upper hinge plate and a lower hinge plate. The upper hinge plate is fixed on the box body above the door body and adjacent to the door body, and the lower hinge plate is fixed on the box body below the door body and adjacent to the door body; It is characterized in that: The upper hinge plate is hinged to the top end of the door body through an upper double-axis double-slideway structure, and the lower hinge plate is hinged to the bottom end of the door body through a lower double-axis double-slideway structure; The horizontal cross-sections of the upper double-axis double-slideway structure and the lower double-axis double-slideway structure are the same; The specific structure of the upper double-axis double-slideway structure is: It includes a double-rotating shaft structure and a double-arc groove structure; the double-rotating shaft structure includes an inner rotating shaft and an outer rotating shaft, and the double-rotating shaft structure is connected upward to the upper hinge plate; The double-arc groove includes a first arc groove and a second arc groove. The inner rotating shaft extends into the first arc groove and is in sliding fit with the groove wall of the first arc groove; the outer rotating shaft extends into the second arc groove and is in sliding fit with the groove wall of the second arc groove; the double-arc groove structure is arranged on the top surface of the door body; The center of the first arc groove is located at the outer end of the second arc groove, and the center of the second arc groove is located at the outer end of the first arc groove; In the closed door state, the inner rotating shaft is located at the inner end of the first arc groove and the outer rotating shaft is located at the center of the first arc groove; When the door body is opened to a 45-degree angle with the box body, it is in a semi-open state. In the semi-open state, the inner rotating shaft is located at the center of the second arc groove, and the outer rotating shaft is located at the center of the first arc groove; When the door body is opened to a 90-degree angle with the box body, it is in a fully open state. In the fully open state, the inner rotating shaft is located at the center of the second arc groove, the outer rotating shaft is located at the inner end of the second arc groove, and at the same time, the front surface of the door body is located 0 - 5 millimeters inside the outer surface of the box body.

2. A door opening and closing method applied to the embedded double-axis double-slideway door opening and closing structure described in claim 1, It is characterized in that: When opening the door, manually pull the door body outward; During the process of the door body rotating from the closed state to the semi-open state, taking the outer rotating shaft as the rotation center, the door body moves forward away from the box body to ensure that there is no contact interference between the door body and the box body; The semi-open state is the position where the rotating shafts are switched; During the process of the door body rotating from the semi-open state to the fully open state, taking the inner rotating shaft as the rotation center, the position where the door body is fully open is located inside the position where the door body is fully open when there is only one rotating shaft, and is flush with the outer surface of the box body or located inside the outer surface of the box body; When closing the door, manually push the door body inward; During the process of the door body rotating from the fully open state to the semi-open state, taking the inner rotating shaft as the rotation center; During the process of the door body rotating from the semi-open state to the closed state, taking the outer rotating shaft as the rotation center.

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