A folding cabinet door system

Abstract

A folding cabinet door system, which comprises a cabinet body, the front end of the cabinet body is provided with an opening, the top of the opening is provided with an upper hanging rail, and the bottom of the opening is provided with a lower guide rail; further comprising a first door body and a second door body; the top of the first door body is provided with a door hanging pulley set offset from one side of the second door body, and the top of the first door body is connected with the upper hanging rail through the door hanging pulley set. The utility model has the advantages that: the structure combines the two opening and closing modes of the sliding door and the sliding door, when the cabinet door is opened, the first door body and the second door body are folded and stacked together, then the whole is driven to slide to one side of the cabinet body along the rail by the second door body, so that the whole cabinet opening is completely exposed, and the "full opening" effect of the cabinet door is realized. This completely solves the problem that the opening degree of the traditional sliding door is limited, so that the user can easily and barrier-free store and take the articles in any position of the cabinet, and the utilization efficiency and the taking convenience of the space in the cabinet are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of furniture hardware technology, specifically a folding cabinet door system. Background Technology

[0002] In daily life, the design of cabinet doors, especially wardrobes and storage cabinets, is crucial to the practicality, space utilization, and user experience of the furniture. Currently, the mainstream cabinet door systems on the market mainly include two types: sliding doors and hinged doors (outward-opening doors), but both of these forms have their own limitations.

[0003] Firstly, regarding sliding doors, also known as sliding doors or push-pull doors, their main characteristic is that multiple door panels slide along a horizontal track, opening and closing the cabinet doors by overlapping the panels. This design avoids the problem of cabinet doors opening outwards and occupying front space, offering certain advantages in space-constrained environments. However, sliding doors have a significant drawback: regardless of the number of doors, usually only half or less of the cabinet width can be opened, severely restricting the retrieval of items inside. For example, in a two-door wardrobe, only the width of one door can be opened at a time, making it extremely inconvenient to access items in the middle area; for some large items, it may even be difficult to retrieve them smoothly. This limitation of "opening only halfway" greatly reduces the utilization efficiency of the cabinet space and the user's convenience, often requiring users to turn sideways or even bend over to reach the obstructed areas, resulting in very limited operating space.

[0004] Secondly, regarding traditional hinged doors, also known as swing doors or hinged cabinet doors, their characteristic is that the door panel is installed on the side of the cabinet via hinges and opens by swinging outwards. Hinged doors can usually be fully opened, making the interior space of the cabinet unobstructed and convenient for accessing items. However, the disadvantages of hinged doors are also prominent: when the cabinet door is fully opened, it swings outwards significantly, occupying a large amount of space in front of the cabinet. This means that when using hinged door cabinets, a passageway or operating area larger than the width of the door panel needs to be reserved in front of the cabinet. In the context of increasingly tight modern home space, this high requirement for usable space undoubtedly brings many inconveniences to home layout and daily activities. For example, in the bedroom, when the distance between the bed and the wardrobe is close, the hinged door may not be able to open fully, and may even collide with the bed or other furniture; in narrow hallways or small apartments, the opening of the hinged door often obstructs passage and affects the overall flow of the space. In addition, large hinged doors will experience significant dynamic loads and fatigue stress on their hinges during frequent opening and closing, which can easily lead to problems such as door panel sagging, hinge loosening, or damage over time.

[0005] In addition to the main drawbacks mentioned above, some existing cabinet door systems also have shortcomings in terms of operational stability, ease of installation, and flexibility of post-installation adjustments. For example, some multi-door linkage or sliding systems may experience jamming, shaking, or noise during operation, affecting the user experience. Furthermore, to ensure the long-term smooth operation of the cabinet door system, precise adjustments to the vertical height and horizontal position of the doors are often required during installation. However, the adjustment mechanisms provided in existing technologies may be complex in structure, cumbersome in operation, have low adjustment precision, or have a limited adjustment range, resulting in low installation efficiency. Moreover, if the doors sag or tilt, subsequent maintenance and adjustments are extremely inconvenient. Therefore, further improvements are necessary. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a folding cabinet door system with a more compact structure, a more aesthetically pleasing appearance, better space utilization, a more convenient opening method, and more stable and easily adjustable operating performance.

[0007] The purpose of this utility model is achieved through the following means: a folding cabinet door system, which includes a cabinet body, an opening at the front end of the cabinet body, an upper hanging rail installed at the top of the opening, and a lower guide rail installed at the bottom of the opening. It also includes the first gate body and the second gate body; A hanging door pulley assembly is provided on the top of the first door body, which is offset from the second door body. The top of the first door body is connected to the upper hanging rail through the hanging door pulley assembly.

[0008] The top of the second door is provided with a hanging door pulley assembly on the side offset from the first door, and the top of the second door is connected to the upper hanging rail through the hanging door pulley assembly.

[0009] The bottom of the first door is provided with a guide pulley assembly on the side opposite to the second door, and the bottom of the first door is connected to the lower guide rail through the guide pulley assembly.

[0010] The bottom of the second door is provided with a guide pulley assembly on the side offset from the first door, and the bottom of the second door is connected to the lower guide rail through the guide pulley assembly; The first door and the second door are hinged on opposite sides.

[0011] Furthermore, the hinges are provided in a plurality of units, which are vertically spaced and installed between the first door body and the second door body.

[0012] Furthermore: the aforementioned door pulley assembly includes a pulley frame that is slidably installed in the upper hanging rail, with a hanging rod extending downward from the pulley frame; it also includes a height adjustment seat that is connected to the corresponding door body via a movable hinge, with a hook groove on the top of the height adjustment seat, and the hook groove is connected to the hanging rod.

[0013] Furthermore: the height adjustment seat includes a base plate, a hook groove is provided on the top of the base plate, and a transverse sliding plate is stacked on the base plate. The transverse sliding plate has several transverse sliding grooves, and transverse guide rivets pass through the transverse sliding grooves and connect to the base plate. A transverse adjustment device is also provided between the transverse sliding plate and the base plate, and the transverse adjustment device drives the relative transverse displacement between the transverse sliding plate and the base plate.

[0014] Furthermore, the end face of the transverse plate is also covered with a height adjustment plate, which has a vertically extending height adjustment groove. The height adjustment rivet passes through the height adjustment groove and is riveted to the transverse plate. The movable hinge is installed on the height adjustment plate. A height adjustment device is also provided between the base plate and the height adjustment plate to drive the height displacement between the height adjustment plate and the base plate.

[0015] Furthermore: the lateral adjustment device includes a lateral adjustment bolt that is rotated and screwed onto the lateral sliding plate. A positioning ring is provided on the cylindrical surface of the lateral adjustment bolt. Correspondingly, a limit groove is provided on the base plate. The limit groove is engaged with the positioning ring and connected to the lateral adjustment bolt.

[0016] Furthermore: the guide pulley assembly includes a lower hinge connected to the corresponding door body, and a lower base connected to the lower hinge. The lower base is provided with a guide groove, and the lifting frame is vertically slidably installed in the guide groove. A lower guide wheel is installed on the top of the lifting frame, and the lower guide wheel extends into the lower guide rail for sliding.

[0017] Furthermore, the lifting frame is also provided with an adjustment groove extending vertically. The height adjustment bolt passes through the adjustment groove and connects to the lower base. Tightening the height adjustment bolt locks the relative height between the lifting frame and the lower base.

[0018] Furthermore, the lifting frame is also equipped with a height adjustment nut seat, and an anti-detachment adjustment bolt is installed inside the height adjustment nut seat. An anti-detachment guide wheel is installed on the top of the anti-detachment adjustment bolt, and the anti-detachment guide wheel is snapped onto the outer back of the lower guide rail and slides.

[0019] Furthermore, the base plate is also equipped with an anti-collision rubber sleeve. The beneficial effects of this utility model are: 1. Simple structure, low production cost, and improved market competitiveness.

[0020] 2. This structure combines two opening methods: hinged doors and sliding doors. When the cabinet door is opened, the first and second doors fold and overlap each other. The second door then drives the entire structure to slide along a track to one side of the cabinet, fully exposing the entire cabinet opening and achieving a "fully open" effect. This completely solves the problem of limited opening of traditional sliding doors, allowing users to easily and unobstructed access to items anywhere inside the cabinet, greatly improving the utilization efficiency and convenience of the cabinet space.

[0021] 3. Because the first and second doors fold and overlap each other during opening, the two doors occupy only the thickness of one door panel when open, and slide along the side of the cabinet opening. Compared to traditional hinged doors, this overlapping and sliding opening and closing method greatly reduces the encroachment on the space in front of the cabinet when the doors are open. Even when furniture such as beds and desks are close to the front of the cabinet, the cabinet door system of this utility model can be opened and closed smoothly and conveniently, significantly improving the flexibility and practicality of home space layout.

[0022] 4. When opening the cabinet door, the door first folds inward or outward along the hinges. Compared with traditional hinged doors that must rotate 90 degrees outward, the folding opening method of this system greatly saves the indoor space required when opening the cabinet door, making it very suitable for areas with limited space.

[0023] 5. After the door is folded open, the entire door assembly remains suspended and guided on the track via pulleys. Users can then push or pull the folded door assembly as a whole along the track to any desired position. This completely solves the problem of traditional sliding doors that can only open halfway, leaving half always obscured. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the door in the closed state in this utility model.

[0025] Figure 2 , 3 This is a schematic diagram of the door in the open state in this utility model.

[0026] Figure 4 , 5 This is a schematic diagram of the door in the present invention in the state of being open and the cabinet body hidden.

[0027] Figure 6 In this utility model Figure 4 Enlarged view of the structure of part A.

[0028] Figure 7 In this utility model Figure 5 Enlarged view of the structure of part B.

[0029] Figure 8 In this utility model Figure 5 Enlarged view of the C-section structure.

[0030] Figure 9 In this utility model Figure 5 Enlarged view of the structure of part D.

[0031] Figure 10 , 11 This is a schematic diagram of the sliding door pulley assembly structure in this utility model.

[0032] Figure 12 , 13 This is an assembly drawing of the hanging door pulley and decorative cover in this utility model.

[0033] Figure 14 , 15 This is a schematic diagram of the structure behind the concealed decorative cover of the hanging door pulley assembly in this utility model.

[0034] Figure 16 This is an exploded view of the structure of the hanging door pulley assembly in this utility model.

[0035] Figure 17 , 18 Figures 1 and 19 are schematic diagrams of the guide pulley block structure in this utility model.

[0036] Figure 20 This is an exploded view of the guide pulley block structure in this utility model.

[0037] Explanation of reference numerals in the attached diagram: 1. Cabinet body; 2. Upper hanging rail; 3. Lower guide rail; 4. First door body; 5. Second door body; 7. Hinge; 8. Hanging door pulley assembly; 81. Pulley frame; 82. Hanging rod; 83. Movable hinge; 84. Height adjustment seat; 841. Base plate; 8410. Limiting groove; 842. Horizontal sliding plate; 843. Horizontal sliding groove; 844. Guide rivet; 845. Height adjustment plate; 846. Height adjustment groove; 847. Height adjustment rivet; 848. Horizontal adjustment bolt; 849. Positioning ring; 85. Hook groove; 850. Height adjustment bolt; 9. Guide pulley assembly; 91. Lower hinge; 910. Anti-detachment guide wheel; 92. Base; 93. Guide groove; 94. Lifting frame; 95. Adjustment groove; 96. Height adjustment bolt; 97. Height adjustment nut seat; 98. Anti-detachment adjustment bolt; 99. Lower guide wheel. Detailed Implementation

[0038] The present invention will be further described in detail below with reference to the accompanying drawings. A folding cabinet door system includes a cabinet body 1, an opening at the front end of the cabinet body 1, an upper hanging rail 2 installed at the top of the opening, and a lower guide rail 3 installed at the bottom of the opening; It also includes the first gate body 4 and the second gate body 5; A hanging door pulley assembly 8 is provided on the top of the first door body 4, which is offset from the second door body 5. The top of the first door body 4 is connected to the upper hanging rail 2 through the hanging door pulley assembly 8.

[0039] The top of the second door body 5 is provided with a hanging door pulley assembly 8 on the side offset from the first door body 4, and the top of the second door body 5 is connected to the upper hanging rail 2 through the hanging door pulley assembly 8.

[0040] The bottom of the first door body 4 is provided with a guide pulley group 9 on the side opposite to the second door body 5, and the bottom of the first door body 4 is connected to the lower guide rail 3 through the guide pulley group 9.

[0041] The bottom of the second door body 5 is provided with a guide pulley group 9 on the side that is offset from the first door body 4, and the bottom of the second door body 5 is connected to the lower guide rail 3 through the guide pulley group 9; The first door 4 and the second door 5 are hinged on opposite sides by a hinge 7.

[0042] In this embodiment, the structure is based on a combination of two actions: "folding" and "sliding".

[0043] Folding principle: The first door 4 and the second door 5 are hinged together by the middle hinge 7, which allows the two doors to flip relative to each other like a book, thus achieving the "folding" action.

[0044] Sliding principle: The key is that the system's pulley system is not installed at the folding point, but rather on the outside of the two door panels. This makes the first door panel 4 and the second door panel 5 each an independent sliding unit, both supported by the upper hanging rail 2 and guided by the lower guide rail 3.

[0045] Combined action: When the cabinet door is opened and folded, the two doors are folded and placed side by side. At this time, since the two doors are still connected to the tracks, the folding unit they form can slide freely to the left or right along the upper hanging rail 2 and the lower guide rail 3.

[0046] Compared to traditional technologies, this system completely solves the problem that traditional sliding doors can only open to a maximum of 50%. After folding, this system can be pushed to one side of the cabinet, allowing the cabinet opening to be nearly 100% open, greatly facilitating users' access to large items.

[0047] Meanwhile, compared to traditional hinged doors that require outward rotation and occupy a lot of interior space, this system's folding action is completed near the cabinet door plane, without encroaching on too much external walkway space. Therefore, users can "fold first, then push and pull," stopping the open door at any position on the track, offering extremely high convenience.

[0048] In one embodiment: several hinges 7 are provided and are vertically spaced and installed between the first door body 4 and the second door body 5.

[0049] In this embodiment, multiple hinges distribute the stress generated during folding to different heights of the door, making the stress more even and effectively preventing the door, especially tall cabinet doors, from twisting or deforming.

[0050] At the same time, installing multiple short hinges is easier than installing a single long hinge that requires precise alignment. Similarly, if a hinge is damaged, only the damaged individual needs to be replaced, resulting in low maintenance costs.

[0051] In one embodiment: the sliding door pulley assembly 8 includes a pulley frame 81 that is slidably installed in the upper rail 2, and a hanging rod 82 extending downward from the pulley frame 81; it also includes a height adjustment seat 84 connected to the corresponding door body via a movable hinge 83, and a hook groove 85 is provided on the top of the height adjustment seat 84, which is connected to the hanging rod 82.

[0052] In this embodiment: Pulley frame 81: Rolls inside the upper rail 2 to achieve sliding.

[0053] Hanging rod 82: connects pulley frame 81 and height adjustment seat 84 to transfer the weight of the door.

[0054] The hook slot 85 is connected to the hanger rod 82: This is a suspension installation method that allows the height adjustment seat 84, together with the door body, to be "hung" on the hanger rod 82.

[0055] Movable hinge 83: This is one of the key components. It connects the height adjustment seat 84 and the door body.

[0056] Compared with traditional technology, the design of the hook groove 85 in this case allows the height adjustment seat 84 to be fixed on the door body first, and then it can be easily "hung" as a whole onto the hanging rod 82 that has been installed in the track, simplifying the installation process.

[0057] Meanwhile, the presence of the movable hinge 83 is crucial. When the door folds around the hinge 7, the door itself will swing at an angle. Without this movable hinge 83, the sliding door roller assembly 8 would be "stuck," causing the folding to jam or be damaged. The movable hinge 83 allows the door to swing relative to the height adjustment seat 84 during folding, ensuring that the folding and sliding actions do not interfere with each other, resulting in smooth operation.

[0058] In one embodiment: the height adjustment seat 84 includes a base plate 841, a hook groove 85 is disposed on the top of the base plate 841, and a transverse sliding plate 842 stacked on the base plate 841. The transverse sliding plate 842 is provided with a plurality of transverse sliding grooves 843, and transverse guide rivets 844 pass through the transverse sliding grooves 843 and are connected to the base plate 841. A transverse adjustment device is also provided between the transverse sliding plate 842 and the base plate 841, and the transverse adjustment device drives the relative transverse displacement between the transverse sliding plate 842 and the base plate 841.

[0059] In this embodiment, the height adjustment seat 84 is composed of a fixed base plate 841 and a movable transverse plate 842 stacked together. A transverse groove 843 and guide rivets 844 limit the transverse plate 842 to move only left and right relative to the base plate 841. A lateral adjustment device is used to drive and fix this translation.

[0060] This structure provides a fine-tuning function for the left and right sides after the door is installed. This allows the installer to precisely adjust the gap between the door and the cabinet side panel, or to adjust the closing gap after the two doors are folded, ensuring that the cabinet doors close tightly and have a neat appearance.

[0061] In one embodiment: the end face of the transverse plate 842 is also covered with a height adjustment plate 845, the height adjustment plate 845 is provided with a vertically extending height adjustment groove 846, the height adjustment rivet 847 passes through the height adjustment groove 846 and is riveted to the transverse plate 842, the movable hinge 83 is installed on the height adjustment plate 845, and a height adjustment device is also provided between the base plate 841 and the height adjustment plate 845 to drive the height displacement between the height adjustment plate 845 and the base plate 841.

[0062] In this embodiment, a "vertical adjustment" function is added to the horizontal sliding plate 842. The height adjustment plate 845 is mounted on the horizontal sliding plate 842 via a height adjustment groove 846. A height adjustment bolt 850 in the height adjustment device is screwed onto the base plate. Rotating the height adjustment bolt 850 drives the height adjustment plate 845 to move up and down along the guide of the height adjustment groove 846, fixing it at a specific height.

[0063] This embodiment provides a fine-tuning function for the door's vertical position after installation. This allows the installer to precisely adjust the gap between the bottom of the door and the lower guide rail or the ground, ensuring the door is level and does not tilt, preventing scratches on the ground, and ensuring consistent vertical gaps.

[0064] In one embodiment: the lateral adjustment device includes a lateral adjustment bolt 848 that is rotatably screwed onto the transverse plate 842. A positioning ring 849 is provided on the cylindrical surface of the lateral adjustment bolt 848. Correspondingly, a limiting groove 8410 is provided on the base plate 841. The limiting groove 8410 is snapped into the positioning ring 849 and connected to the lateral adjustment bolt 848.

[0065] In this embodiment: the thread of the lateral adjusting bolt 848 is screwed into the transverse sliding plate 842.

[0066] The positioning ring 849 of the lateral adjusting bolt 848 is stuck by the limiting groove 8410 on the base plate 841.

[0067] When the lateral adjusting bolt 848 is rotated, the bolt itself cannot move axially because the limiting groove 8410 jams the positioning ring 849, i.e., it cannot move in or out of the base plate 841; it can only rotate in place. However, since its thread engages with the internal thread on the transverse plate 842, this rotation forces the transverse plate 842 to move laterally along the axial direction of the bolt.

[0068] In this embodiment, the screw drive converts rotational motion into minute linear motion, making lateral adjustment highly precise. Simultaneously, adjustment is very effortless, and once adjusted to the correct position, the transverse sliding plate 842 automatically locks in place due to thread friction, preventing displacement due to door vibration and ensuring high stability.

[0069] In one embodiment: the guide pulley assembly 9 includes a lower hinge 91 connected to the corresponding door body, and a lower base 92 connected to the lower hinge 91. The lower base 92 is provided with a guide groove 93. The lifting frame 94 is vertically slidably installed in the guide groove 93. The top of the lifting frame 94 is equipped with a lower guide wheel 99, which extends into the lower guide rail 3 and slides.

[0070] In this embodiment, the lower guide wheel 99 slides within the lower guide rail 3, which restricts the swing of the bottom of the door and ensures that the door always moves in a straight line.

[0071] The lifting frame 94 is designed to slide vertically within the guide groove 93 of the lower base 92. During installation of the guide pulley assembly 9 and the lower guide rail 3, the sliding design of the lifting frame 94 allows the lifting frame to be lowered to its lowest position first, so that the lower guide wheel 99 can initially be positioned at the bottom of the lower guide rail 3. Once the two are aligned, the lifting frame 94 is pushed upward, causing the lower guide wheel 99 to insert into the lower guide rail 3.

[0072] In this embodiment: the lifting frame 94 is also provided with an adjustment groove 95 extending vertically, and the height adjustment bolt 96 passes through the adjustment groove 95 and is connected to the lower base 92. Tightening the height adjustment bolt 96 locks the relative height between the lifting frame 94 and the lower base 92.

[0073] In this embodiment: during installation or adjustment, first loosen the height adjustment bolt 96, allowing the lifting frame 94 to slide up and down along the adjustment groove 95; after determining the height, tighten the height adjustment bolt 96, and the bolt head will press against the lifting frame 94, fixing it to the lower base 92. This also achieves reliable locking of the lower guide wheel height. This, in conjunction with the height adjustment of the upper hanging wheels, together completes the vertical positioning and leveling of the entire door body.

[0074] In one embodiment: the lifting frame 94 is also provided with a height adjustment nut seat 97, and an anti-detachment adjustment bolt 98 is provided inside the height adjustment nut seat 97. An anti-detachment guide wheel 910 is installed on the top of the anti-detachment adjustment bolt 98, and the anti-detachment guide wheel 910 is snapped to the outer back of the lower guide rail 3 and slides.

[0075] In this embodiment, an additional anti-detachment guide wheel 910 is installed on the lifting frame 94.

[0076] The lower guide wheel 99 slides inside the track, while the anti-detachment guide wheel 910 is adjusted to be locked on the back of the track. During normal sliding, the anti-detachment guide wheel 910 does not contact or only slightly contacts the track; however, if the door is lifted or shaken violently and tends to jump off the lower guide rail 3, the upper edge of the lower guide rail 3 will be immediately blocked by the anti-detachment guide wheel 910. This effectively prevents the bottom of the door from derailing from the track, avoiding the door tipping over and injuring or damaging people. At the same time, the lower guide wheel 99 and the anti-detachment guide wheel 910 clamp the lower guide rail from above and below, minimizing the shaking at the bottom of the door and making the sliding smoother.

[0077] An anti-collision rubber sleeve is also provided on the base plate 841.

[0078] When the door slides to the end of the track, or when two sliding door roller assemblies approach each other, the anti-collision sleeves, made of rubber or silicone, will make contact first and absorb the impact. This serves two purposes: first, it prevents metal parts from colliding and generating noise, achieving silent operation; second, it protects the hardware from impact damage and extends its service life.

[0079] In summary, this system perfectly integrates the two functions of "folding" and "sliding" through a sophisticated mechanical structure. Its complete working principle is summarized as follows: Core operating principle: The system consists of a first door body 4 and a second door body 5, which are hinged together by a hinge 7. Unlike traditional folding doors, the hanging door pulley group 8 and the guide pulley group 9 of this system are respectively installed on the outside of the two door bodies, so that the two doors are independently connected to the upper hanging rail 2 and the lower guide rail 3.

[0080] This allows the door, after being folded together using hinge 7, to form a "folding unit" that can still slide freely along the upper and lower tracks as a whole. This achieves 100% cabinet opening and minimal space occupation.

[0081] The upper sliding door pulley assembly 8 is the main load-bearing and sliding component. It slides within the upper hanging rail 2 via the pulley bracket 81. It is connected to the door body via a movable hinge 83, allowing the door body to fold.

[0082] In addition, a three-dimensional adjustment system is also integrated: The left and right adjustments of the door can be achieved through a lateral adjustment device and a precise bolt drive. The height adjustment device allows for fine-tuning of the door's vertical position.

[0083] The anti-collision rubber sleeve provides cushioning when the door slides to the limit, achieving silence and protecting the components.

[0084] The lower guide pulley assembly 9 is the main guiding and safety component. The lower guide wheel 99 slides within the lower guide rail 3 to ensure that the bottom of the door does not wobble; its lifting frame 94 can be locked in height by the height adjustment bolt 96, and the door can be leveled in conjunction with the upper adjustment.

[0085] Most importantly, it also integrates an anti-derailment guide wheel 910, which is locked in the opposite direction on the outside of the lower guide rail 3. When the door tends to derail, the anti-derailment guide wheel 910 will immediately stop it, effectively preventing the door from derailing and tipping over, ensuring the safety and long-term stability of the system.

[0086] In summary, this system is a high-performance push-pull folding cabinet door solution that integrates "folding and sliding", "three-dimensional precision adjustment", "anti-detachment safety protection" and "buffering and silent" functions, and therefore can be widely promoted and used.

[0087] 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 folding cabinet door system, characterized in that: It includes a cabinet (1), with an opening at the front end of the cabinet (1), an upper hanging rail (2) installed at the top of the opening, and a lower guide rail (3) installed at the bottom of the opening. It also includes the first gate body (4) and the second gate body (5); A hanging door pulley assembly (8) is provided on the top of the first door body (4) on the side that is away from the second door body (5). The top of the first door body (4) is connected to the upper hanging rail (2) through the hanging door pulley assembly (8). The top of the second door body (5) is provided with a hanging door pulley assembly (8) on the side that is away from the first door body (4), and the top of the second door body (5) is connected to the upper hanging rail (2) through the hanging door pulley assembly (8); The bottom of the first door body (4) is provided with a guide pulley group (9) on the side that is away from the second door body (5), and the bottom of the first door body (4) is connected to the lower guide rail (3) through the guide pulley group (9); The bottom of the second door (5) is provided with a guide pulley group (9) on the side that is away from the first door (4), and the bottom of the second door (5) is connected to the lower guide rail (3) through the guide pulley group (9); The first door (4) and the second door (5) are hinged on opposite sides by a hinge (7).

2. The folding cabinet door system according to claim 1, characterized in that: The hinges (7) are provided in several units and are installed vertically at intervals between the first door body (4) and the second door body (5).

3. A folding cabinet door system according to claim 1, characterized in that: The sliding door pulley assembly (8) includes a pulley frame (81) that is slidably installed in the upper rail (2), and a hanging rod (82) extending downward on the pulley frame (81); it also includes a height adjustment seat (84) connected to the corresponding door body through a movable hinge (83), and a hook groove (85) is provided on the top of the height adjustment seat (84), which is connected to the hanging rod (82).

4. A folding cabinet door system according to claim 3, characterized in that: The height adjustment seat (84) includes a base plate (841), a hook groove (85) is provided on the top of the base plate (841), and a transverse sliding plate (842) is stacked on the base plate (841). The transverse sliding plate (842) has several transverse sliding grooves (843) and transverse guide rivets (844) pass through the transverse sliding grooves (843) and connect to the base plate (841). A transverse adjustment device is also provided between the transverse sliding plate (842) and the base plate (841). The transverse adjustment device drives the relative transverse displacement between the transverse sliding plate (842) and the base plate (841).

5. A folding cabinet door system according to claim 4, characterized in that: The end face of the transverse plate (842) is also covered with a height adjustment plate (845). The height adjustment plate (845) is provided with a vertically extending height adjustment groove (846). The height adjustment rivet (847) passes through the height adjustment groove (846) and is riveted to the transverse plate (842). The movable hinge (83) is installed on the height adjustment plate (845). A height adjustment device is also provided between the base plate (841) and the height adjustment plate (845) to drive the height displacement between the height adjustment plate (845) and the base plate (841).

6. A folding cabinet door system according to claim 4, characterized in that: The lateral adjustment device includes a lateral adjustment bolt (848) that is rotated and screwed onto the transverse plate (842). A positioning ring (849) is provided on the cylindrical surface of the lateral adjustment bolt (848). Correspondingly, a limiting groove (8410) is provided on the base plate (841). The limiting groove (8410) is snapped into the positioning ring (849) and connected to the lateral adjustment bolt (848).

7. A folding cabinet door system according to claim 1, characterized in that: The guide pulley assembly (9) includes a lower hinge (91) connected to the corresponding door body, and a lower base (92) connected to the lower hinge (91). A guide groove (93) is provided on the lower base (92). The lifting frame (94) is vertically slidably installed in the guide groove (93). A lower guide wheel (99) is installed on the top of the lifting frame (94). The lower guide wheel (99) extends into the lower guide rail (3) and slides.

8. A folding cabinet door system according to claim 7, characterized in that: The lifting frame (94) is also provided with an adjustment groove (95) extending vertically. The height adjustment bolt (96) passes through the adjustment groove (95) and connects to the lower base (92). Tightening the height adjustment bolt (96) locks the relative height between the lifting frame (94) and the lower base (92).

9. A folding cabinet door system according to claim 8, characterized in that: The lifting frame (94) is also provided with a height adjustment nut seat (97), and an anti-detachment adjustment bolt (98) is provided inside the height adjustment nut seat (97). An anti-detachment guide wheel (910) is installed on the top of the anti-detachment adjustment bolt (98), and the anti-detachment guide wheel (910) is snapped to the outer back of the lower guide rail (3) and slides.

10. A folding cabinet door system according to claim 4, characterized in that: The base plate (841) is also provided with a collision protection rubber sleeve.

Images