A concealed cabinet door mounting structure
Patent Information
- Application Number
- CN202521972812.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-15
- Publication Date
- 2026-10-16
- Estimated Expiration
- 2035-09-15
AI Technical Summary
推拉式通常使用滑轨实现左右横向滑动,优点在于不会占用室内空间,但有着显著性的缺点:柜门需要相互重叠滑动,导致柜门占用柜体储物空间,其次柜门的打开会占用柜体总宽度的一半,导致尺寸较大的物品收纳受到限制
[0011] The beneficial effects of this utility model are: 1. Simple structure, low manufacturing cost, and improved market competitiveness.
Smart Images

Figure CN224859431U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cabinet door technology, specifically a concealed cabinet door installation structure. Background Technology
[0002] With the improvement of people's living standards and the emphasis on the utilization of living space, higher requirements are placed on the design and function of cabinets with storage space. As an important component of the cabinet, the opening and closing method and space occupied by the cabinet door affect the user experience and the layout of the interior space. Traditional cabinet door opening methods are mainly sliding and hinged. Sliding doors typically use sliding rails to achieve horizontal sliding, which has the advantage of not occupying interior space, but has significant disadvantages: the doors need to overlap to slide, causing the doors to occupy storage space within the cabinet; secondly, opening the doors will occupy half of the total width of the cabinet, limiting the storage of larger items. Hinged cabinet doors open outwards or rotate, which has the advantage of allowing the cabinet to be fully opened, making it convenient for users to access items. However, in interior environments with limited space, this can cause inconvenience, occupy aisle space, obstruct user passage, and place higher demands on the placement of interior furniture. Therefore, neither the currently available sliding nor hinged cabinet doors can simultaneously provide convenient operation and achieve efficient space utilization. Utility Model Content
[0003] The purpose of this utility model is to overcome the shortcomings of existing technologies and provide a concealed cabinet door installation structure that is simple in structure, low in manufacturing cost, and shipped as a whole, simplifying on-site installation, improving installation efficiency and accuracy, forming a highly efficient and stable installation structure, and allowing the cabinet door to be fully opened and completely hidden.
[0004] The purpose of this utility model is achieved in the following way: a concealed cabinet door installation structure, including a first vertical rod and a second vertical rod symmetrically distributed vertically, a sliding mechanism installed across the two vertical rods, the first vertical rod, the second vertical rod and the sliding mechanism forming a frame-like frame, and a support frame connected to the sliding mechanism; a plurality of door hinges are installed on the support frame, the cabinet door is installed on the support frame through the plurality of door hinges, the sliding mechanism slides laterally, and the cabinet door is moved by the support frame.
[0005] The sliding mechanism includes an upper slide rail, a middle slide rail, and a lower slide rail, as well as an upper slider, a middle slider, and a lower slider that are slidably connected thereto. The upper slide rail is installed across the upper ends of the first vertical rod and the second vertical rod, the middle slide rail is installed across the middle of the first vertical rod and the second vertical rod, and the lower slide rail is installed across the lower ends of the first vertical rod and the second vertical rod, connecting the first vertical rod and the second vertical rod into one unit; the support frame is connected to the upper slider, the middle slider, and the lower slider.
[0006] The upper slide rail, middle slide rail and lower slide rail divide the frame into an upper sliding area and a lower sliding area. The upper sliding area and the lower sliding area are respectively equipped with an upper guide device and a lower guide device.
[0007] The upper guiding device includes a first guide wheel and a second guide wheel connected to the first vertical rod, and a third guide wheel and a fourth guide wheel connected to the second vertical rod. A first traction rope, wrapped around the first guide wheel, extends and wraps around the fourth guide wheel. The upper end of the first traction rope is fixedly connected to the upper slider, and its lower end is fixedly connected to the middle slider. A second traction rope, wrapped around the third guide wheel, extends and wraps around the second guide wheel. The upper end of the second traction rope is fixedly connected to the upper slider, and its lower end is fixedly connected to the middle slider. The first traction rope and the second traction rope are distributed crosswise.
[0008] The lower guide device includes a fifth guide wheel and a sixth guide wheel connected to the first vertical rod, and a seventh guide wheel and an eighth guide wheel connected to the second vertical rod. A third traction rope, wrapped around the fifth guide wheel, extends and wraps around the eighth guide wheel. The upper end of the third traction rope is fixedly connected to the middle slider, and its lower end is fixedly connected to the lower slider. A fourth traction rope, wrapped around the seventh guide wheel, extends and wraps around the sixth guide wheel. The upper end of the fourth traction rope is fixedly connected to the middle slider, and its lower end is fixedly connected to the lower slider. The third traction rope and the fourth traction rope are distributed in a crisscross pattern.
[0009] The first and second vertical rods are bent relative to each other to form an upper insert plate, a middle insert plate, and a lower insert plate. The upper insert plate is inserted at both ends of the upper slide rail, the middle insert plate is inserted at both ends of the middle slide rail, and the lower insert plate is inserted at both ends of the lower slide rail, thus connecting the sliding mechanism with the first and second vertical rods as a whole.
[0010] The upper, middle, and lower insert plates are each provided with a baffle on their outer side, and the sliding mechanism is locked onto the inner wall of the baffle to limit the sliding stroke of the sliding mechanism.
[0011] The beneficial effects of this utility model are: 1. Simple structure, low manufacturing cost, and improved market competitiveness.
[0012] 2. The first vertical bar, the second vertical bar, and the sliding mechanism are set up to form an integral frame. The entire frame is fixed to the cabinet door by the support frame. The installation structure is pre-assembled and tested at the factory, so users do not need to do complicated assembly on site, which significantly simplifies the installation process, improves installation efficiency, and reduces labor costs.
[0013] 3. The installation structure, as an integral part of the structure, ensures installation accuracy and guarantees a smoother, more reliable, and stable movement of the cabinet door, significantly improving the user experience and safety.
[0014] 4. Using upper and lower guide devices for guidance, the cabinet door is precisely positioned and assisted in vertical movement, so that the cabinet door can be folded in and out more effectively when opened, achieving a concealed effect. Attached Figure Description
[0015] Figure 1 This is a rendering of the final assembly of this utility model.
[0016] Figure 2 This is an exploded view of the support frame, the first vertical rod, and the second vertical rod in this utility model.
[0017] Figure 3 This is an exploded view of the structure of the first vertical rod, the second vertical rod, and the sliding mechanism in this utility model.
[0018] Figure 4 This is an exploded view of the sliding mechanism in this utility model.
[0019] Figure 5 This is a schematic diagram of the structure of the first vertical rod and the second vertical rod in this utility model. Detailed Implementation
[0020] The present invention will be further described in detail below with reference to the accompanying drawings. A concealed cabinet door installation structure includes a first vertical rod 3 and a second vertical rod 4 symmetrically distributed vertically. A sliding mechanism 5 is installed across the two vertical rods. The first vertical rod 3, the second vertical rod 4, and the sliding mechanism 5 enclose a frame-like structure. A support frame 1 is connected to the sliding mechanism 5. A plurality of door hinges 2 are installed on the support frame 1. The cabinet door is installed on the support frame 1 through the plurality of door hinges 2. The sliding mechanism 5 slides laterally, driving the cabinet door to move through the support frame 1.
[0021] In the installation structure of this cabinet door, vertically distributed first and second vertical rods serve as vertical support components, forming the sides of a frame-like structure. A sliding mechanism is then installed across the two vertical rods. Together, the sliding mechanism, the first vertical rod, and the second vertical rod enclose a structurally stable frame-like structure, and the cabinet door is mounted to the sliding mechanism via a support frame. Unlike traditional split designs, the support frame, acting as an intermediate component between the cabinet door and the sliding mechanism, has a height comparable to the vertical rods, thus making the entire frame-like structure a single, complete installation component. This complete installation component is pre-assembled and tested at the factory. During the actual installation of the cabinet door, the user does not need to perform tedious assembly and testing of these precision moving parts on-site. They only need to fix the pre-assembled component to the cabinet door as a whole, simplifying the on-site installation process, significantly improving installation efficiency, and reducing the user's installation time and costs.
[0022] The sliding mechanism 5 includes an upper slide rail 51, a middle slide rail 52, and a lower slide rail 53, as well as an upper slider 54, a middle slider 55, and a lower slider 56 slidably connected thereto. The upper slide rail 51 is installed across the upper ends of the first vertical rod 3 and the second vertical rod 4. The middle slide rail 52 is installed across the middle of the first vertical rod 3 and the second vertical rod 4. The lower slide rail 53 is installed across the lower ends of the first vertical rod 3 and the second vertical rod 4, connecting the first vertical rod 3 and the second vertical rod 4 into one unit. The support frame 1 is connected to the upper slider 54, the middle slider 55, and the lower slider 56.
[0023] The sliding mechanism includes an upper slide rail, a middle slide rail, and a lower slide rail, as well as upper sliders, middle sliders, and lower sliders that are slidably connected to the aforementioned slide rails. The upper slide rail is installed across the upper ends of the first and second vertical rods, the middle slide rail is installed across the middle of the first and second vertical rods, and the lower slide rail is installed across the lower ends of the first and second vertical rods. These three slide rails are parallel and form a multi-point support connection, firmly connecting the first and second vertical rods into a single unit, making the entire frame structure more stable and improving the overall structural rigidity. Furthermore, the use of multiple slide rails and sliders significantly enhances the load-bearing capacity of the entire sliding mechanism, making it particularly suitable for the assembly movement of large cabinet doors, further ensuring the smoothness and precision of the sliding mechanism during movement.
[0024] The upper slide rail 51, the middle slide rail 52 and the lower slide rail 53 divide the frame into an upper sliding area and a lower sliding area. The upper sliding area and the lower sliding area are respectively equipped with an upper guide device 6 and a lower guide device 7.
[0025] By utilizing the parallel distribution of the upper, middle, and lower sliding rails, the entire frame is divided into an upper sliding area and a lower sliding area. Upper and lower guide devices are installed in the corresponding sliding areas. While the cabinet door slides horizontally, the upper and lower guide devices precisely position and assist the vertical movement of the cabinet door, thereby enabling the cabinet door to fold in and out more effectively when opened, achieving a concealed effect.
[0026] The upper guiding device 6 includes a first guide wheel 61 and a second guide wheel 62 connected to the first vertical rod 3, and a third guide wheel 63 and a fourth guide wheel 64 connected to the second vertical rod 4. A first traction rope 65, wrapped around the first guide wheel 61, extends and wraps around the fourth guide wheel 64. The upper end of the first traction rope 65 is fixedly connected to the upper slider 54, and its lower end is fixedly connected to the middle slider 55. A second traction rope 66, wrapped around the third guide wheel 63, extends and wraps around the second guide wheel 62. The upper end of the second traction rope 66 is fixedly connected to the upper slider 54, and its lower end is fixedly connected to the middle slider 55. The first traction rope 65 and the second traction rope 66 are distributed crosswise.
[0027] The upper guiding device includes a first guide wheel, a second guide wheel, a third guide wheel, and a fourth guide wheel diagonally distributed on the first and second vertical rods, as well as two intersecting traction ropes: a first traction rope and a second traction rope. When the upper or middle slider slides laterally, the traction ropes, fixedly connected to the upper and middle sliders, are guided by the guide wheels, forcing a specific relative movement between them. This allows the cabinet door to move laterally while simultaneously performing precise vertical positioning or folding movements, enabling the cabinet door to be fully retracted into the cabinet without occupying additional interior space. The guide wheels, as guiding components, ensure smooth guidance of the traction ropes during movement, avoiding potential friction or jamming, and ensuring the accuracy and stability of the linkage between the upper and middle sliders.
[0028] The lower guide device 7 includes a fifth guide wheel 71 and a sixth guide wheel 72 connected to the first vertical rod 3, and a seventh guide wheel 73 and an eighth guide wheel 74 connected to the second vertical rod 4. A third traction rope 75, which is wound around the fifth guide wheel 71, extends and is wound around the eighth guide wheel 74. The upper end of the third traction rope 75 is fixedly connected to the middle slider 55, and its lower end is fixedly connected to the lower slider 56. A fourth traction rope 76, which is wound around the seventh guide wheel 73, extends and is wound around the sixth guide wheel 72. The upper end of the fourth traction rope 76 is fixedly connected to the middle slider 55, and its lower end is fixedly connected to the lower slider 56. The third traction rope 75 and the fourth traction rope 76 are distributed in a crisscross pattern.
[0029] The lower guide device includes a fifth, sixth, seventh, and eighth guide wheel diagonally distributed on the first and second vertical rods, and two intersecting third and fourth traction ropes. When the middle or lower slider slides laterally, the traction ropes, fixedly connected to the middle and lower sliders, are guided by the guide wheels to generate a specific relative movement between them. This allows the cabinet door to move laterally while simultaneously performing precise vertical positioning or folding movements, enabling the door to be fully retracted into the cabinet without occupying additional interior space. The guide wheels, as guiding components, ensure smooth guidance of the traction ropes during movement, avoiding potential friction or jamming, and ensuring the accuracy and stability of the linkage between the middle and lower sliders. The lower guide device works in conjunction with the upper guide device to complete the complex trajectory movement of the cabinet door in its fully concealed state, ensuring the stability and reliability of the door's movement.
[0030] The first vertical rod 3 and the second vertical rod 4 are bent relative to each other to form an upper insert plate 81, a middle insert plate 82 and a lower insert plate 83. The upper insert plate 81 is inserted into both ends of the upper slide rail 51, the middle insert plate 82 is inserted into both ends of the middle slide rail 52 and the lower insert plate 83 is inserted into both ends of the lower slide rail 53, thus connecting the sliding mechanism 5 with the first vertical rod 3 and the second vertical rod 4 as a whole.
[0031] The upper, middle, and lower insert plates are formed by bending the main body of the first and second vertical rods on opposite sides. These plates are precisely inserted into the ends of the upper, middle, and lower slide rails, thus tightly connecting them to the first and second vertical rods. This method is faster and more precise than traditional screw connections or welding. The insert-type connection structure significantly simplifies the on-site installation process for users, improving assembly efficiency and installation accuracy.
[0032] The upper insert plate 81, the middle insert plate 82 and the lower insert plate 83 are respectively provided with baffles 9 on their outer sides, and the sliding mechanism 5 is locked on the inner wall of the baffle 9 to limit the sliding stroke of the sliding mechanism 5.
[0033] Baffles are provided on the outer sides of the upper, middle and lower insert plates. When the sliding mechanism slides to the preset position, it is locked on the inner wall of the baffle, thus forming a physical limit. This effectively restricts the sliding stroke of the sliding mechanism, ensuring that the cabinet door will not exceed the preset range when opening or closing. This avoids damage to structural components caused by excessive movement, ensures accurate stopping of the cabinet door, and improves user safety and experience.
[0034] In summary: The overall installation component uses the first and second vertical rods as vertical support components, and is horizontally mounted across the upper, middle, and lower ends of the first and second vertical rods via the upper, middle, and lower slide rails of the sliding mechanism, forming a unified frame structure. The cabinet door is connected to the sliding mechanism via the support frame. When the cabinet door needs to be opened or closed, the sliding mechanism slides laterally between the two vertical rods, moving the cabinet door via the support frame. The support frame acts as the intermediate component between the cabinet door and the sliding mechanism, making the entire frame structure a complete installation component. This complete installation component is pre-assembled and tested at the factory. During the actual installation of the cabinet door, the user does not need to perform tedious assembly and testing of these precision moving parts on-site. They only need to fix the pre-assembled installation component to the cabinet door as a whole, simplifying the on-site installation process, significantly improving installation efficiency, and reducing the user's installation time and costs.
[0035] The installation structure includes an upper guide device and a lower guide device. The upper guide device guides and positions the upper part of the cabinet door, while the lower guide device guides and positions the lower part of the cabinet door. The two guide devices work together to allow the support frame connected to the upper, middle, and lower sliders to precisely position the cabinet door vertically while it slides horizontally. This allows the cabinet door to be fully retracted into the cabinet, achieving a concealed effect and ensuring that the cabinet door can be fully opened without occupying external indoor space.
[0036] Furthermore, the bodies of the first and second vertical rods are bent to form upper, middle, and lower insert plates. These insert plates can be precisely inserted into the corresponding slide rail ends, ensuring a stable connection between the sliding mechanism and the vertical rods. Simultaneously, a baffle is provided on the outer side of the insert plates to limit the sliding stroke of the sliding mechanism, ensuring the safety and precise positioning of the cabinet door movement. This forms an efficient, stable, concealed, and highly secure installation structure, making it widely applicable.
[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A concealed cabinet door installation structure, characterized in that: It includes a first vertical rod (3) and a second vertical rod (4) that are symmetrically distributed vertically. A sliding mechanism (5) is installed across the two vertical rods. The first vertical rod (3), the second vertical rod (4) and the sliding mechanism (5) form a frame-like structure. The support frame (1) is connected to the sliding mechanism (5). The support frame (1) is equipped with several door hinges (2), and the cabinet door is installed on the support frame (1) through several door hinges (2). The sliding mechanism (5) slides laterally and drives the cabinet door to move through the support frame (1).
2. The concealed cabinet door installation structure according to claim 1, characterized in that: The sliding mechanism (5) includes an upper slide rail (51), a middle slide rail (52), and a lower slide rail (53), and an upper slider (54), a middle slider (55), and a lower slider (56) slidably connected thereto. The upper slide rail (51) is installed across the upper ends of the first vertical rod (3) and the second vertical rod (4). The middle slide rail (52) is installed across the middle of the first vertical rod (3) and the second vertical rod (4). The lower slide rail (53) is installed across the lower ends of the first vertical rod (3) and the second vertical rod (4), connecting the first vertical rod (3) and the second vertical rod (4) into one unit. The support frame (1) is connected to the upper slider (54), the middle slider (55), and the lower slider (56).
3. The concealed cabinet door installation structure according to claim 2, characterized in that: The upper slide rail (51), middle slide rail (52) and lower slide rail (53) divide the frame into an upper sliding area and a lower sliding area. The upper sliding area and the lower sliding area are respectively equipped with an upper guide device (6) and a lower guide device (7).
4. The concealed cabinet door installation structure according to claim 3, characterized in that: The upper guide device (6) includes a first guide wheel (61) and a second guide wheel (62) connected to the first vertical rod (3), and a third guide wheel (63) and a fourth guide wheel (64) connected to the second vertical rod (4). A first traction rope (65) wrapped around the first guide wheel (61) extends and wraps around the fourth guide wheel (64). The upper end of the first traction rope (65) is fixedly connected to the upper slider (54), and its lower end is fixedly connected to the middle slider (55). A second traction rope (66) wrapped around the third guide wheel (63) extends and wraps around the second guide wheel (62). The upper end of the second traction rope (66) is fixedly connected to the upper slider (54), and its lower end is fixedly connected to the middle slider (55). The first traction rope (65) and the second traction rope (66) are intersected.
5. The concealed cabinet door installation structure according to claim 3, characterized in that: The lower guide device (7) includes a fifth guide wheel (71) and a sixth guide wheel (72) connected to the first vertical rod (3), and a seventh guide wheel (73) and an eighth guide wheel (74) connected to the second vertical rod (4). A third traction rope (75) wrapped around the fifth guide wheel (71) extends and wraps around the eighth guide wheel (74). The upper end of the third traction rope (75) is fixedly connected to the middle slider (55), and its lower end is fixedly connected to the lower slider (56). A fourth traction rope (76) wrapped around the seventh guide wheel (73) extends and wraps around the sixth guide wheel (72). The upper end of the fourth traction rope (76) is fixedly connected to the middle slider (55), and its lower end is fixedly connected to the lower slider (56). The third traction rope (75) and the fourth traction rope (76) are distributed in a cross pattern.
6. The concealed cabinet door installation structure according to claim 2, characterized in that: The first vertical rod (3) and the second vertical rod (4) are bent relative to each other to form an upper insert plate (81), a middle insert plate (82) and a lower insert plate (83). The upper insert plate (81) is inserted into both ends of the upper slide rail (51), the middle insert plate (82) is inserted into both ends of the middle slide rail (52), and the lower insert plate (83) is inserted into both ends of the lower slide rail (53), thus connecting the sliding mechanism (5) with the first vertical rod (3) and the second vertical rod (4) as a whole.
7. The concealed cabinet door installation structure according to claim 6, characterized in that: The upper insert plate (81), middle insert plate (82) and lower insert plate (83) are respectively provided with baffles (9), and the sliding mechanism (5) is locked on the inner wall of the baffle (9) to limit the sliding stroke of the sliding mechanism (5).