Cabinet door linkage double-door type vertical cabinet

By designing a linked sector gear and linkage gear structure, the two cabinet doors of the double-door cabinet can rotate synchronously, solving the inconvenience of opening the cabinet doors from the left and right sides in the existing technology, and providing a more efficient experience for displaying and retrieving items.

CN224235088UActive Publication Date: 2026-05-15GUANGZHOU RONRUN SHOWCASE MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU RONRUN SHOWCASE MFG CO LTD
Filing Date
2025-06-05
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

The existing double-door cabinets require users to open them from the left and right sides separately, making it impossible to open them simultaneously. This affects the efficiency of taking out and displaying items, and it is also inconvenient for users to operate them while standing in front of the cabinet.

Method used

Design a double-door cabinet with interconnected doors. The doors are linked by sector gears and linkage gears on the left and right doors. The rotation of the left door drives the rotation of the right door synchronously. A limiting device is used to restrict the rotation angle to avoid spatial conflicts.

Benefits of technology

This allows users to open both cabinet doors simultaneously from the side, avoiding obstructed views and improving the convenience of displaying and retrieving items.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of display cabinets, and particularly relates to a cabinet door linkage double-door type vertical cabinet which comprises a U-groove-shaped main cabinet body, and a left cabinet door and a right cabinet door are arranged at a cabinet opening in the front side of the cabinet body. The left cabinet door and the right cabinet door are L-shaped; a left sector gear is fixed at the top or the bottom of the left cabinet door; a right sector gear is fixed at the top or the bottom of the right cabinet door; the left sector gear and the right sector gear are linked through two linkage gears; the gear ratio of the left sector gear to the left linkage gear is the same as the gear ratio of the right sector gear to the right linkage gear, and the gear ratio of the left linkage gear to the right linkage gear is 1: 1. According to the scheme, the left cabinet door and the right cabinet door can be linked through the sector gear and the linkage gear, the two cabinet doors can be opened from the side face of the vertical cabinet, the situation that in the cabinet door opening process, people stand to the front side of the vertical cabinet, and consequently the sight is blocked is avoided, and convenience is provided for displaying objects in the vertical cabinet.
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Description

Technical Field

[0001] This utility model belongs to the field of display cabinet technology, specifically relating to a double-door standing cabinet with interconnected cabinet doors. Background Technology

[0002] Display cases generally have two door structures: sliding doors and double doors. With two sliding doors, one door always partially obstructs the opening, limiting the opening range and hindering the placement of large items. Double doors allow for a larger opening and are more widely used in display cases. However, existing double doors have two independent doors. To retrieve or display items, one often needs to open the doors from both sides. During product demonstrations, people often need to stand directly in front of the display case to easily open both doors. If the doors could be opened from the side, it would be much more convenient to access and display items inside.

[0003] Therefore, it is necessary to design a double-opening cabinet structure with interconnected cabinet doors. Utility Model Content

[0004] To address the aforementioned problems in existing technologies, this solution provides a double-door upright cabinet with interconnected cabinet doors.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A double-door standing cabinet with interlocking doors includes a U-shaped main cabinet body, with a left door and a right door at the front opening of the cabinet body; both the left and right doors are L-shaped and can rotate; a left sector gear is fixed at the top or bottom of the left door, with the center of the left sector gear located on the door hinge axis of the left door; a right sector gear is fixed at the top or bottom of the right door, with the center of the right sector gear located on the door hinge axis of the right door; both the left and right sector gears are sector gears; the left sector gear meshes with a left linkage gear, the right sector gear meshes with a right linkage gear, and the left linkage gear meshes with the right linkage gear.

[0007] The gear ratio of the left sector gear and the left linkage gear is the same as the gear ratio of the right sector gear and the right linkage gear, and the gear ratio of the left linkage gear to the right linkage gear is 1:1.

[0008] As an alternative or supplement to the above structure: the left and right sector gears are provided with limiting arc grooves, the limiting arc grooves are coaxial with the left or right sector gears, and limiting pins are provided in the limiting arc grooves, the limiting pins are used to limit the rotation angle of the left and right sector gears.

[0009] As an alternative or supplement to the above structure: the top of the main cabinet is fixedly connected to a top cover.

[0010] As an alternative or supplement to the above structure: the bottom of the main cabinet is fixedly connected to a base support.

[0011] As an alternative or supplement to the above structure: the right sector gear is hidden inside the base or the top cover; the left sector gear is hidden inside the base or the top cover.

[0012] As an alternative or supplement to the above structure: the main cabinet body, the left cabinet door, and the right cabinet door form a rectangular cabinet cavity, and multiple uprights are provided in the cabinet cavity, with multiple horizontal bars connected between the uprights; a shelf is placed on the horizontal bars.

[0013] As an alternative or supplement to the above structure: downward-sloping spotlights are installed on the cavity walls of the cabinet.

[0014] As an alternative or supplement to the above structure: the left and right sector gears are provided with notches to avoid the main cabinet.

[0015] The beneficial effects of this utility model are as follows: In this solution, the left cabinet door and the right cabinet door can be linked by a sector gear and a linkage gear, which can open the two cabinet doors from the side of the cabinet, avoiding the obstruction of the view when a person stands in front of the cabinet during the opening of the cabinet door, and providing convenience for displaying the items in the cabinet. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this scheme or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0017] Figure 1 This is a diagram showing the assembly structure of the sector gear, linkage gear, and cabinet door in this design.

[0018] Figure 2 This is a front structural diagram of the double-door cabinet in this design.

[0019] Figure 3 This is the internal structure diagram of the double-door cabinet in this design.

[0020] In the diagram: 1-Left cabinet door; 2-Left sector gear; 3-Left linkage gear; 4-Right linkage gear; 5-Limiting arc groove; 6-Right cabinet door; 7-Main cabinet body; 8-Bottom support; 9-Top cover; 10-Shelf; 11-Upright rod; 12-Horizontal rod; 13-Spotlight; 14-Right sector gear; 15-Limiting pin. Detailed Implementation

[0021] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are only some embodiments, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments in this solution without creative effort are within the protection scope of this solution.

[0022] like Figures 1 to 3 As shown, this embodiment designs a double-door cabinet with interlocking doors, including components such as left cabinet door 1, left fan gear 2, left linkage gear 3, right linkage gear 4, limiting arc groove 5, right cabinet door 6, main cabinet body 7, bottom support 8, top cover 9, shelf 10, upright rod 11, horizontal rod 12, spotlight 13, right fan gear 14, and limiting nail 15.

[0023] The main cabinet 7 has a U-shaped structure and can be made of wood, acrylic or glass.

[0024] Left cabinet door 1 and right cabinet door 6 are respectively located on the left and right sides of the cabinet opening at the front of the cabinet body. Both left and right cabinet doors 1 and 6 are L-shaped and can rotate within a range of 0-90°. Both left and right cabinet doors 1 and 6 are equipped with hinges, which are the central axes of rotation for the cabinet doors. Multiple hinges can be used to form the hinges, in which case the hinges at the upper ends of left and right cabinet doors 1 and 6 are rotatably connected to the main cabinet body 7 or the top cover 9.

[0025] A left sector gear 2 is fixed to the top or bottom of the left cabinet door 1, and the center of the left sector gear 2 is located on the door hinge axis (i.e., the straight line where the door hinge is located) of the left cabinet door 1. A right sector gear 14 is fixed to the top or bottom of the right cabinet door 6, and the center of the right sector gear 14 is located on the door hinge axis of the right cabinet door 6. Both the left sector gear 2 and the right sector gear 14 are sector gears. The left sector gear 2 meshes with the left linkage gear 3, the right sector gear 14 meshes with the right linkage gear 4, and the left linkage gear 3 meshes with the right linkage gear 4. The gear ratio of the left sector gear 2 and the left linkage gear 3 is the same as the gear ratio of the right sector gear 14 and the right linkage gear 4, and the gear ratio of the left linkage gear 3 to the right linkage gear 4 is 1:1.

[0026] When the left cabinet door 1 rotates, it drives the left sector gear 2 to rotate synchronously, which in turn drives the left linkage gear 3. The torque of the left linkage gear 3 is transmitted to the right sector gear 14 through the right transmission gear, thereby driving the right cabinet door 6 to rotate synchronously. Similarly, when the right cabinet door 6 rotates, it also drives the left cabinet door 1 to rotate.

[0027] The left sector gear 2 and the right sector gear 14 are provided with limiting arc grooves 5. The angle of the limiting arc grooves 5 is greater than 90 degrees. The limiting arc grooves 5 are coaxial with the left sector gear 2 or the right sector gear 14. The limiting arc grooves 5 are provided with limiting pins 15. The limiting pins 15 are fixed on the base 8 or the top cover 9. The limiting pins 15 can block the left sector gear 2 and the right sector gear 14 when they rotate to their limit positions, thereby limiting the rotation angle of the left sector gear 2 and the right sector gear 14.

[0028] The top cover 9 is fixed to the top of the main cabinet 7. The bottom support 8 is fixedly connected to the bottom of the main cabinet 7. The right sector gear 14 is hidden inside the bottom support 8 or the top cover 9; the left sector gear 2 is hidden inside the bottom support 8 or the top cover 9, thereby improving the aesthetics.

[0029] The main cabinet 7, the left cabinet door 1, and the right cabinet door 6 form a rectangular cabinet cavity. Multiple uprights 11 are installed within the cabinet cavity. The upper end of each upright 11 can be connected to the top cover 9, and the lower end can be connected to the bottom support 8. Multiple horizontal bars 12 are connected between the uprights 11. Shelves 10 are placed on the horizontal bars 12. The shelves 10 are used to place exhibits.

[0030] The left and right sector gears are provided with notches to avoid the main cabinet body, so that when the door hinge is located outside the cabinet opening of the main cabinet body 7, the left and right sector gears can avoid spatial conflict with the main cabinet body 7.

[0031] An inclined spotlight 13 is installed on the cavity wall of the cabinet. A spotlight 13 can be installed diagonally above each shelf 10 to provide supplemental lighting for the exhibits.

[0032] In this solution, since the left cabinet door 1 and the right cabinet door 6 are linked by gears, it is convenient for users to open the two cabinet doors simultaneously from the side of the cabinet. This eliminates the need for users to open the left cabinet door 1 and the right cabinet door 6 separately from the left and right sides of the cabinet, and also eliminates the need for users to stand in front of the cabinet and open the cabinet doors with both hands. This avoids the situation where people stand in front of the cabinet and obstruct the view during the opening of the cabinet doors, and provides convenience for displaying the items in the cabinet and for users to explain the exhibits.

[0033] The above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation; it is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom remain within the scope of this technology.

Claims

1. A double-door standing cabinet with interconnected doors, characterized in that: The main cabinet (7) is U-shaped, with a left cabinet door (1) and a right cabinet door (6) at the front opening. Both the left cabinet door (1) and the right cabinet door (6) are L-shaped and can rotate. A left sector gear (2) is fixed at the top or bottom of the left cabinet door (1), and the center of the left sector gear (2) is located on the door hinge axis of the left cabinet door (1). A right sector gear (14) is fixed at the top or bottom of the right cabinet door (6), and the center of the right sector gear (14) is located on the door hinge axis of the right cabinet door (6). Both the left sector gear (2) and the right sector gear (14) are sector gears. The left sector gear (2) meshes with the left linkage gear (3), the right sector gear (14) meshes with the right linkage gear (4), and the left linkage gear (3) meshes with the right linkage gear (4). The gear ratio of the left sector gear (2) and the left linkage gear (3) is the same as the gear ratio of the right sector gear (14) and the right linkage gear (4), and the gear ratio of the left linkage gear (3) to the right linkage gear (4) is 1:

1.

2. The double-door standing cabinet with interlocking cabinet doors as described in claim 1, characterized in that: The left sector gear (2) and the right sector gear (14) are provided with limiting arc grooves (5), which are coaxial with the left sector gear (2) or the right sector gear (14). The limiting arc grooves (5) are provided with limiting pins (15), which are used to limit the rotation angle of the left sector gear (2) and the right sector gear (14).

3. The double-door standing cabinet with interlocking cabinet doors as described in claim 1, characterized in that: The top of the main cabinet (7) is fixedly connected to a top cover (9).

4. The double-door standing cabinet with interlocking cabinet doors according to claim 3, characterized in that: The bottom of the main cabinet (7) is fixedly connected to a base support (8).

5. The double-door standing cabinet with interlocking cabinet doors according to claim 4, characterized in that: The right sector gear (14) is hidden inside the base (8) or the top cover (9); the left sector gear (2) is hidden inside the base (8) or the top cover (9).

6. The double-door standing cabinet with interlocking cabinet doors according to any one of claims 1-5, characterized in that: The main cabinet (7), the left cabinet door (1) and the right cabinet door (6) form a rectangular cabinet cavity. Multiple uprights (11) are provided in the cabinet cavity, and multiple horizontal bars (12) are connected between the uprights (11). A shelf (10) is placed on the horizontal bar (12).

7. The double-door standing cabinet with interlocking cabinet doors according to claim 6, characterized in that: An inclined, downward-facing spotlight (13) is installed on the cavity wall of the cabinet.

8. The double-door standing cabinet with interlocking cabinet doors according to claim 1, characterized in that: The left sector gear (2) and the right sector gear (14) are provided with notches to avoid the main cabinet (7).