Double door body synchronous rotation connector and embedded household appliance structure

Abstract

The present application relates to the technical field of electrical component, and provides a double-door synchronous rotation connector, which comprises a first connecting piece and a second connecting piece; the second connecting piece is provided with a slider capable of reciprocating sliding along a straight line parallel to the first connecting piece; at least one swing lever group is connected between the first connecting piece and the slider; each swing lever group comprises at least two swing levers arranged in parallel; and both ends of the swing lever are rotationally connected to the first connecting piece and the slider respectively. Thus, the first connecting piece and the second connecting piece are fixed on two different door bodies respectively. During the rotation of the two door bodies, the swing lever rotates and the slider slides, and the gap between the two door bodies is automatically adapted, so that the two door bodies always keep parallel during the rotation, and the synchronous rotation of the two door bodies is realized. The connector is not limited by the position of the rotation fulcrum of the two door bodies and the specific size of the door body, and has strong universality and convenient installation and replacement operation. The present application also provides an embedded household appliance structure.

Description

Technical Field

[0001] This invention belongs to the field of electrical component technology, and particularly relates to a dual-door synchronous rotation connector and an embedded home appliance structure. Background Technology

[0002] With the growing trend of integrated home furnishing, users' requirements for home appliances such as refrigerators, microwave ovens, ovens, and washing machines are no longer limited to functionality; they also demand decorative features. For example, they require appliances to blend perfectly with cabinets or sideboards, needing to be fully embedded within them while retaining their functionality.

[0003] For example, the embedded refrigerator structure disclosed in Chinese Patent 2024111492802 uses a multi-track hinge to achieve the embedded structure of the refrigerator without affecting the opening and closing of the door. When the door is closed, the refrigerator is hidden within the embedded structure. However, this type of hinge is a specialized hinge, only suitable for specific appliance models and lacking universality. Users need to match specific models or categories of products to their cabinet installation space, resulting in a narrow range of product choices. On-site installation is required, demanding a high level of professional expertise. If a user replaces the appliance, the entire cabinet may need to be replaced, indicating poor compatibility.

[0004] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the Invention

[0005] To address the aforementioned shortcomings, this invention provides a dual-door synchronous rotation connector, which solves the technical problems of poor versatility, limited product selection, and inconvenience in replacement of existing embedded structures.

[0006] To address the above problems, the present invention provides a dual-door synchronous rotation connector, comprising a first connector and a second connector; The second connector is provided with a slider that can reciprocate along a straight line parallel to the first connector; At least one rocker arm assembly is connected between the first connector and the slider; each rocker arm assembly includes at least two parallel rocker arms; the two ends of the rocker arms are respectively rotatably connected to the first connector and the slider.

[0007] According to the present invention, the double-door synchronous rotation connector has two sets of rocker arm assemblies, which are respectively connected to the first connector and the slider from the top and bottom sides.

[0008] According to the present invention, the double-door synchronous rotation connector has bearing holes at both ends of the swing arm, and bearings are sleeved in the bearing holes; a fulcrum shaft is fixedly provided on the first connector and the slider; the bearing has an outer ring and an inner ring that can rotate relative to each other, wherein the outer ring is fixedly sleeved in the bearing hole of the swing arm, and the inner ring is fixedly sleeved on the fulcrum shaft on the corresponding side; the fulcrum shaft is screwed with a screw.

[0009] According to the present invention, a track plate is fixed on the second connector; the top and bottom of the track plate are respectively provided with slide rails that slide in cooperation with the slider.

[0010] According to the present invention, the first connector is slidably connected to the telescopic rod, and the first connector is further provided with a locking component capable of locking the relative position of the first connector and the telescopic rod; a clamping plate is fixedly provided at the ends of the first connector and the telescopic rod respectively.

[0011] According to the present invention, the first connector has two parallel rail grooves, and the upper and lower sides of the telescopic rod are respectively slidably engaged with the rail groove on the opposite side; a stabilizing rail is raised between the two rail grooves, and the telescopic rod is provided with a strip-shaped groove that slidably engages with the stabilizing rail.

[0012] According to the present invention, the telescopic rod is provided with a row of check teeth; the locking assembly includes a locking pawl rotatably disposed on the first connector; a torsion spring is provided between the locking pawl and the first connector, configured to generate elastic torque so that the locking pawl presses against the check teeth; The locking claw has an arc-shaped locking claw head at the part rotatably connected to the first connecting member; the first connecting member is also rotatably provided with an unlocking rod, which has a hook structure surrounding the locking claw head.

[0013] According to the present invention, the first connector is further provided with an adjusting wheel, the adjusting wheel is provided with an adjusting claw that abuts against the check tooth; the adjusting wheel is also fixedly connected to an adjusting handle; a torsion spring is provided between the adjusting wheel and the first connector, which is configured to generate elastic torque, so that the adjusting claw disengages from the check tooth in a free state.

[0014] According to the present invention, the double-door synchronous rotation connector has a limiting flange on the clamping plate and an elongated adjustment hole on the clamping plate.

[0015] An embedded home appliance structure includes a cabinet in which a home appliance is placed; the cabinet has a cabinet door; the home appliance has a housing with a product door on the housing; at least one of the aforementioned dual-door synchronous rotation connectors is provided between the cabinet door and the product door; a first connector of the connector is fixedly connected to the product door, and a second connector is fixedly connected to the cabinet door.

[0016] In summary, the dual-door synchronous rotation connector of the present invention fixes the first and second connecting parts to two different doors respectively. Each door has an independent rotation fulcrum. When one door rotates, it drives the other door to rotate accordingly. During the rotation of the two doors, the rocker arm rotates and the slider slides, and the two work together to automatically adapt to the gap between the two doors, ensuring that the two doors remain parallel throughout the rotation process, thus achieving synchronous rotation. The connector of the present invention is not limited by the relative position of the rotation fulcrums of the two doors, nor by the specific dimensions of the two doors, making it highly versatile and convenient for installation and replacement. The present invention also provides an embedded home appliance structure. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the dual-door synchronous rotation connector of the present invention; Figure 2 yes Figure 1 Schematic diagram of the structure of region B in the middle; Figure 3 This is a schematic diagram of the structure of the second connector of the present invention; Figure 4 yes Figure 1 Schematic diagram of the structure of region A in the middle; Figure 5 yes Figure 1 Schematic diagram of the structure in the C-direction; Figure 6 yes Figure 5 Schematic diagram of the cross-sectional structure of a local area; Figure 7 This is a schematic diagram of the open state of the dual-door synchronous rotation connector of the present invention in a usage scenario; Figure 8 This is a schematic diagram of the closed state of the dual-door synchronous rotation connector of the present invention in a usage scenario; Figure 9 This is a schematic diagram of the embedded home appliance structure of the present invention; Figure 10 yes Figure 6 Schematic diagram of the structure of region D in the middle; In the diagram: 1-First connecting piece, 11-Telescopic rod, 12-Clamping plate, 121-Limit flange, 122-Adjusting hole; 13-Railway, 14-Stabilizing rail, 15-Adjusting handle, 151-Adjusting wheel, 152-Adjusting claw, 153-Retreat hole; 16-Unlocking rod, 161-Locking claw, 162-Locking claw head, 163-Hook structure; 17-Check tooth; 2-Second connecting piece, 21-Slider, 22-Railway plate, 221-Slide rail; 3-Swing rod, 31-Fulcrum shaft, 32-Bearing, 33-Screw; 4-Casing, 41-Product door, 42-Door hinge; 5-Cabinet, 51-Cabinet door, 52-Cabinet door hinge. Detailed Implementation

[0018] See Figure 1 The present invention provides a dual-door synchronous rotation connector, comprising a first connector 1 and a second connector 2; See Figure 2 The second connector 2 is provided with a slider 21 that can slide back and forth along a straight line parallel to the first connector 1; At least one rocker arm assembly is connected between the first connector 1 and the slider 21; each rocker arm assembly includes at least two parallel rocker arms 3; the two ends of the rocker arms 3 are respectively rotatably connected to the first connector 1 and the slider 21.

[0019] See Figure 7 In this invention, the first connecting member 1 and the second connecting member 2 are respectively fixed to two different door bodies. Each door body has an independent pivot. When one door body rotates, the other door body rotates accordingly. During the rotation of the two door bodies, the swing arm 3 rotates, and the slider 21 slides relative to the second connecting member 2, automatically adapting to the gap between the two door bodies, ensuring that the two door bodies remain parallel during rotation, thus achieving synchronous rotation of the two door bodies.

[0020] In one embodiment, the first connector 1 of the present invention is fixed to the product door 41, which rotates about the product door pivot 42; the second connector 2 is fixed to the cabinet door 51, which rotates about the cabinet door pivot 52.

[0021] Combination Figure 8 When both doors are closed, the gap between them is minimal. (Combined) Figure 7 Pulling the cabinet door 51 gradually opens both doors from the closed state. The tension is transmitted through the connector of this invention, causing the product door 41 to rotate accordingly. During the opening process, the slider 21 slides relative to the second connector 2, while the swing arm 3 rotates. The first connector 1 and the second connector 2 automatically adapt to the gap between the two doors, ensuring that the product door 41 is always parallel to the cabinet door 51, achieving synchronous rotation of the two.

[0022] The dual-door synchronous rotation connector of the present invention is not limited by the relative position of the rotation fulcrum of the two doors, nor by the specific size of the two doors; it is highly versatile and convenient for installation and replacement.

[0023] In one embodiment, the rocker arm assembly consists of two sets, which are connected to the first connector 1 and the slider 21 from the top and bottom sides, respectively.

[0024] As one embodiment, both ends of the swing arm 3 are provided with bearing holes, and bearings 32 are sleeved in the bearing holes; fulcrum shafts 31 are fixed on the first connecting member 1 and the slider 21; the bearing 32 has an outer ring and an inner ring that can rotate relative to each other, wherein the outer ring is fixedly sleeved in the bearing hole of the swing arm 3, and the inner ring is fixedly sleeved on the fulcrum shaft 31 on the corresponding side; The two ends of the swing arm 3 are rotatably connected to the first connecting piece 1 and the slider 21 through the bearing 32. There is no gap in the rotatable connection, so that the swing arm 3 rotates smoothly.

[0025] Furthermore, the pivot shaft 31 is screwed with a screw 33; after the screw 33 is tightened, it presses against the inner ring of the bearing 32 to prevent relative sliding between the inner ring of the bearing 32 and the pivot shaft 31.

[0026] See Figure 3 As one embodiment, a track plate 22 is fixed on the second connecting member 2; the top and bottom of the track plate 22 are respectively provided with slide rails 221 that slide in cooperation with the slider 21; the slider 21 and the slide rails 221 on the upper and lower sides are in a snap-fit ​​sliding cooperation, which can slide stably along a straight line without shaking during the sliding process.

[0027] See Figure 4 and Figure 5 In one embodiment, the first connector 1 is slidably connected to the telescopic rod 11, and the first connector 1 is also provided with a locking component that can lock the relative position of the first connector 1 and the telescopic rod 11; a clamping plate 12 is fixed to the ends of the first connector 1 and the telescopic rod 11 respectively. Combination Figure 8 The first connector 1 and the telescopic rod 11 are fitted to the outer side of the product door 41. The length of the telescopic rod 11 is adjusted so that the two clamping plates 12 are clamped on both sides of the product door 41. Then, the position of the telescopic rod 11 is locked so that the connector is fixedly installed on the product door 41. The length of the telescopic rod 11 is adjustable, which can adapt to the door of various home appliances, without being limited by specific specifications and types, and has strong versatility.

[0028] Furthermore, the first connector 1 has two parallel rail grooves 13, and the upper and lower sides of the telescopic rod 11 are respectively slidably engaged with the rail groove 13 on the opposite side. Even better, a stabilizing rail 14 is provided protruding between the two rail grooves 13, and the telescopic rod 11 is provided with a strip-shaped groove that slides with the stabilizing rail 14. This constrains the displacement of the telescopic rod 11 in other directions, allowing it to slide stably in a straight line along the first connecting member 1.

[0029] See Figure 6 As one embodiment, the telescopic rod 11 is provided with a row of check teeth 17; the locking assembly includes a locking pawl 161 rotatably disposed on the first connecting member 1; a torsion spring is provided between the locking pawl 161 and the first connecting member 1, which is configured to generate elastic torque so that the locking pawl 161 presses against the check teeth 17. The locking claw 161 has an arc-shaped locking claw head 162 at the part rotatably connected to the first connecting member 1; the first connecting member 1 is also rotatably provided with an unlocking rod 16, the unlocking rod 16 having a hook structure 163 surrounding the locking claw head 162. The telescopic rod 11 is pressed into the first connector 1, and the check tooth 17 can disengage from the locking pawl 161 in the forward direction. Under the action of the torsion spring force, the locking pawl 161 re-engages with the next check tooth 17.

[0030] When the telescopic rod 11 is pulled in the opposite direction, the check tooth 17 pushes the locking pawl 161 to rotate in the opposite direction, and the locking pawl head 162 abuts against the hook structure 163, preventing it from rotating and locking the position of the telescopic rod 11.

[0031] Rotate the unlocking lever 16, the hook structure 163 rotates and pushes the locking pawl 161 to rotate in the opposite direction, disengaging from the anti-return tooth 17 to complete the unlocking, and the telescopic lever 11 can slide freely.

[0032] Furthermore, the first connecting member 1 is also rotatably provided with an adjusting wheel 151, the adjusting wheel 151 is provided with an adjusting claw 152 that abuts against the check tooth 17; the adjusting wheel 151 is also fixedly connected to an adjusting handle 15; a torsion spring is provided between the adjusting wheel 151 and the first connecting member 1, which is configured to generate elastic torque, so that the adjusting claw 152 disengages from the check tooth 17 in a free state; See Figure 10 Furthermore, the adjusting wheel 151 is provided with a retraction hole 153, and the adjusting claw 152 is slidably disposed in the retraction hole 153; a spring is provided in the retraction hole 153.

[0033] Move the adjusting handle 15 so that the adjusting pawl 152 abuts against the check tooth 17, and drive the telescopic rod 11 to retract into the first connecting piece 1 by the distance of one check tooth 17. Then release the adjusting handle 15, the elastic force of the torsion spring is released, and the adjusting wheel 151 rotates in the opposite direction to reset. During the reset process, the rear check tooth 17 contacts the adjusting pawl 152 and exerts a pressing force on it, pressing the adjusting pawl 152 into the relief hole 153. After reset, the spring pushes the adjusting pawl 152 out to return it to its original position.

[0034] By repeating the aforementioned actions multiple times, the retraction amount of the telescopic rod 11 can be precisely adjusted, so that the two clamping plates 12 are tightly locked on both sides of the door.

[0035] In one embodiment, the clamping plate 12 is provided with a limiting flange 121, and the clamping plate 12 is also provided with an elongated adjustment hole 122; bolts or screws are used to fix the clamping plate 12 through the adjustment hole 122. The displacement of the clamping plate 12 in the thickness direction of the door body is adjusted by adjusting the adjustment hole 122, and the limiting flange 121 abuts against the inner side of the door body, so that the first connecting member 1 and the telescopic rod 11 are in a horizontal position. The screws are tightened to fix the position of the clamping plate 12.

[0036] See Figure 9 The present invention also provides an embedded home appliance structure, including a cabinet 5, in which a home appliance is placed; the cabinet 5 has a cabinet door 51; the home appliance has a housing 4, on which a product door 41 is provided; at least one of the aforementioned double-door synchronous rotation connectors is provided between the cabinet door 51 and the product door 41; the first connector 1 of the connector is fixedly connected to the product door 41, and the second connector 2 is fixedly connected to the cabinet door 51; The opening and closing of cabinet door 51 can drive product door 41 to rotate synchronously.

[0037] The home appliances of the present invention can be refrigerators, upright freezers, microwave ovens, washing machines, dishwashers, and other home appliances with upright side-opening door structures.

[0038] Optionally, the appliance of the present invention can also be an appliance such as an oven that has a vertically opening door structure that can be lifted up or pulled down.

[0039] In summary, this invention provides a dual-door synchronous rotation connector by fixing a first connector and a second connector to two different doors. Each door has an independent rotation fulcrum. When one door rotates, the other door is driven to rotate accordingly. During the rotation of both doors, the rocker arm rotates and the slider slides, automatically adapting to the gap between the two doors to maintain parallelism throughout the rotation, thus achieving synchronous rotation. The connector of this invention is not limited by the relative position of the rotation fulcrums of the two doors, nor by the specific dimensions of the two doors, offering strong versatility and facilitating installation and replacement. This invention also provides an embedded home appliance structure.

[0040] Of course, the present invention may have other various embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention, but these corresponding changes and modifications should all fall within the protection scope of the appended claims.

Claims

1. A dual-door synchronous rotation connector, characterized in that, Includes a first connector and a second connector; The second connector is provided with a slider that can reciprocate along a straight line parallel to the first connector; At least one rocker arm assembly is connected between the first connector and the slider; each rocker arm assembly includes at least two parallel rocker arms; the two ends of the rocker arms are respectively rotatably connected to the first connector and the slider.

2. The dual-door synchronous rotation connector as described in claim 1, characterized in that, The rocker arm assembly consists of two sets, which are connected to the first connector and the slider from the top and bottom sides, respectively.

3. The dual-door synchronous rotation connector as described in claim 1, characterized in that, Both ends of the swing arm are provided with bearing holes, and bearings are sleeved in the bearing holes; a fulcrum shaft is fixed on both the first connecting member and the slider; the bearing has an outer ring and an inner ring that can rotate relative to each other, wherein the outer ring is fixedly sleeved in the bearing hole of the swing arm, and the inner ring is fixedly sleeved on the fulcrum shaft on the corresponding side; the fulcrum shaft is screwed with a screw.

4. The dual-door synchronous rotation connector as described in claim 1, characterized in that, A track plate is fixed on the second connector; the top and bottom of the track plate are respectively provided with slide rails that slide in cooperation with the slider.

5. The dual-door synchronous rotation connector as described in claim 1, characterized in that, The first connector is slidably connected to the telescopic rod, and the first connector is also provided with a locking component that can lock the relative position of the first connector and the telescopic rod; a clamping plate is fixed to the end of the first connector and the telescopic rod respectively.

6. The dual-door synchronous rotation connector as described in claim 5, characterized in that, The first connector has two parallel rail grooves, and the upper and lower sides of the telescopic rod are respectively slidably engaged with the rail groove on the opposite side; a stabilizing rail is raised between the two rail grooves, and the telescopic rod is provided with a strip-shaped groove that slidably engages with the stabilizing rail.

7. The dual-door synchronous rotation connector as described in claim 5, characterized in that, The telescopic rod is provided with a row of check teeth; the locking assembly includes a locking pawl rotatably mounted on the first connector; a torsion spring is provided between the locking pawl and the first connector, configured to generate elastic torque so that the locking pawl presses against the check teeth. The locking claw has an arc-shaped locking claw head at the part rotatably connected to the first connecting member; the first connecting member is also rotatably provided with an unlocking rod, which has a hook structure surrounding the locking claw head.

8. The dual-door synchronous rotation connector as described in claim 7, characterized in that, The first connector is also rotatably provided with an adjusting wheel, and the adjusting wheel is provided with an adjusting claw that abuts against the check tooth; the adjusting wheel is also fixedly connected to an adjusting handle; a torsion spring is provided between the adjusting wheel and the first connector, which is configured to generate elastic torque, so that the adjusting claw disengages from the check tooth in a free state.

9. The dual-door synchronous rotation connector as described in claim 5, characterized in that, The clamping plate is provided with a limiting flange, and the clamping plate is also provided with a long strip-shaped adjustment hole.

10. An embedded home appliance structure, comprising a cabinet, wherein a home appliance is placed inside the cabinet; the cabinet has cabinet doors; the home appliance has a shell, and the shell is provided with a product door; characterized in that, At least one dual-door synchronous rotation connector as described in any one of claims 1 to 9 is provided between the cabinet door and the product door; the first connector of the connector is fixedly connected to the product door, and the second connector is fixedly connected to the cabinet door.

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