Splicing door system with lower fixed guiding function

Abstract

The utility model provides a spliced door system with lower fixed guiding function, which comprises a shutter leaf installed on a door frame through a door hinge, a first guide rail fixedly installed on the top of the shutter leaf, a second guide rail fixedly installed on the top of the door frame, a slidingly installed sliding door leaf in the second guide rail through a hoisting wheel set, a movable butt joint seat installed on the end of the first guide rail, a fixed butt joint seat installed on the end of the second guide rail, a lower guide rail arranged on the back of the shutter leaf, and a lower guide block correspondingly arranged on the back of the sliding door leaf and sliding in the lower guide rail. The utility model has the beneficial effects that the lower guide rail is creatively arranged on the back of the shutter leaf, and the lower guide block is correspondingly arranged on the back of the sliding door leaf. When the door system operates, the lower guide block is limited to slide in the lower guide rail. This unique design makes the bottom of the sliding door leaf no longer in a free suspension state, but always accurately constrained and guided by the lower guide rail.

Description

Technical Field

[0001] This utility model relates to the field of furniture technology, specifically a splicing door system with a bottom guide function. Background Technology

[0002] In architectural decoration and space partitioning, various types of door systems are widely used. Among them, modular doors (also known as folding sliding doors or PD doors) and interlocking door systems are favored for their flexible space utilization and diverse opening methods. These door systems typically consist of one or more hinged door panels (hinged doors) and one or more sliding door panels (sliding doors), with specific connecting mechanisms enabling the doors to operate in conjunction or independently.

[0003] However, existing modular door or sliding door systems, especially those involving the coordinated opening and closing of hinged and sliding door panels, generally suffer from several technical defects. Specifically, in many existing PD (Dual-Plank) door or sliding door systems, the bottom of the sliding door panel is typically left freely suspended, lacking an effective limiting or guiding structure. This means that the lower part of the sliding door panel does not form a stable guiding connection with the ground or the lower part of the door frame, and its movement trajectory is not sufficiently controlled in the vertical or lateral directions.

[0004] The core problem caused by this structural defect is that when the sliding door opens or closes along with the hinged door, the lack of precise positioning or guidance at the bottom of the sliding door makes it prone to wobbling. This unstable movement easily leads to unwanted impacts between the bottom of the sliding door and the hinged door, generating significant noise. Repeated impacts over time not only severely affect the user experience and reduce product comfort, but can also cause wear and tear on door components, shortening the lifespan of the entire door system. In some cases, severe impacts can even damage the door itself, thus necessitating further improvements. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of existing technologies and provide an innovative door system with a more compact structure, a more beautiful appearance, and a stable and reliable guiding function for the bottom of the sliding door leaf, so as to improve the overall performance of the system, reduce operating noise, and improve durability.

[0006] The purpose of this utility model is achieved by the following means: a splicing door system with a bottom guide function, which includes a door leaf mounted on the door frame by a door hinge, and a first guide rail fixedly installed on the top of the door leaf; It also includes a second guide rail fixed to the top of the door frame, and a sliding door leaf is slidably installed in the second guide rail via a set of hanging wheels; It also includes a movable docking seat installed at the end of the first guide rail and a fixed docking seat installed at the end of the second guide rail. When the door is closed, the movable docking seat and the fixed docking seat dock together, so that the first guide rail and the second guide rail are connected. It also includes a lower guide rail set on the back of the sliding door leaf, and correspondingly, a lower guide block is set on the back of the sliding door leaf, which slides within the lower guide rail.

[0007] Furthermore: the lower guide rail has a "Z" shaped cross section, and its top and the sliding door leaf form a top opening guide area; the lower guide block includes a guide seat connected to the sliding door leaf, and the guide seat extends downward to provide a guide head, which extends into the guide area to slide.

[0008] Furthermore, the guide head is provided with an isolation block protruding towards the sliding door leaf, and the isolation block is in contact with the lower guide rail.

[0009] Furthermore, a lower support plate is provided extending forward from the bottom of the lower guide rail, and the lower support plate covers the bottom of the hinged door leaf.

[0010] Furthermore, the guide seat is provided with several mounting holes, through which fixing screws are passed to install the sliding door leaf.

[0011] Furthermore: the lower guide rail is made of aluminum profile and has several fixing holes, through which fixing screws pass to fix the door leaf.

[0012] The beneficial effects of this utility model are: 1. Simple structure, low production cost, and improved market competitiveness.

[0013] 2. This utility model creatively incorporates a lower guide rail on the back of the hinged door leaf and a corresponding lower guide block on the back of the sliding door leaf. When the door system is in operation, the lower guide block is confined to slide within the lower guide rail. This unique design ensures that the bottom of the sliding door leaf is no longer in a free-floating state, but is always precisely constrained and guided by the lower guide rail. This fundamentally solves the problem of unstable bottom movement of sliding door leaves in existing technologies.

[0014] 3. Because the bottom of the sliding door is stably guided and limited by the lower guide rail throughout the entire movement, undesirable impacts caused by shaking between the sliding door and the hinged door (or door frame, ground) are effectively prevented. This makes the opening and closing process of the door system smoother and more stable, greatly reducing or even eliminating the noise generated during operation, and significantly improving the user's comfort and overall experience.

[0015] 4. The stable lower guide structure not only reduces noise but also lowers the risk of component wear and damage due to frequent impacts. This helps extend the service life of the entire splicing gate system, reduce maintenance costs, and improve product reliability and durability.

[0016] 5. The lower guide mechanism of this utility model is ingeniously designed. Through the cooperation of simple guide rails and guide blocks, it effectively solves complex problems. The structure is relatively simple and easy to process, manufacture and install. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the door leaf of this utility model in the fully closed state.

[0018] Figure 2 This is a schematic diagram of the sliding door in the open state in this utility model.

[0019] Figure 3 , 4 This is a schematic diagram showing the sliding door and the hinged door in the open state in this utility model.

[0020] Figure 5 This is a schematic diagram of the hidden door frame structure of this utility model.

[0021] Figure 6 This is an exploded view of the guide rail, fixed docking seat, and movable docking seat in this utility model.

[0022] Figure 7 This is an exploded view of the lower guide rail and sliding door panel structure of this utility model.

[0023] Explanation of reference numerals in the attached drawings: 1. Door hinge; 2. Door frame; 3. Door leaf; 31. Lower guide rail; 32. Guide area; 33. Lower support plate; 4. First guide rail; 5. Second guide rail; 6. Hanging roller assembly; 7. Door leaf; 71. Lower guide block; 711. Guide seat; 712. Guide head; 713. Isolation block; 714. Mounting hole; 715. Fixing screw; 8. Movable mating seat; 9. Fixed mating seat Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings. A splicing door system with a bottom guide function includes a hinged door leaf 3 mounted on a door frame 2 via a door hinge 1, and a first guide rail 4 is fixedly mounted on the top of the hinged door leaf 3; It also includes a second guide rail 5 fixed to the top of the door frame 2, and a sliding door leaf 7 is slidably installed in the second guide rail 5 through a set of hanging wheels 6; It also includes a movable docking seat 8 installed at the end of the first guide rail 4 and a fixed docking seat 9 installed at the end of the second guide rail 5. When the door leaf 3 is closed, the movable docking seat 8 and the fixed docking seat 9 dock with each other, so that the first guide rail 4 and the second guide rail 5 are connected. It also includes a lower guide rail 31 provided on the back of the hinged door 3, and correspondingly, a lower guide block 71 is provided on the back of the sliding door 7, and the lower guide block 71 slides within the lower guide rail 31.

[0025] In this embodiment: the hinged door 3 is a swing door connected to the door frame 2 via a hinge 1, and its top has a first guide rail 4. The sliding door 7 is a sliding door, suspended by a set of casters 6 and can slide within a second guide rail 5 at the top of the door frame 2. When the hinged door 3 is closed, the movable docking seat 8 installed at the end of the first guide rail 4 precisely engages with the fixed docking seat 9 installed at the end of the second guide rail 5, achieving smooth communication between the first guide rail 4 and the second guide rail 5. This allows the sliding door 7 to smoothly slide into the second guide rail 5 and pass over the first guide rail 4, thereby opening or closing the entire doorway.

[0026] The hinged door 3 has a lower guide rail 31 on its back, and the sliding door 7 has a lower guide block 71 on its back that cooperates with the lower guide rail 31. Regardless of whether the hinged door 3 is open, closed, or in motion, the lower guide block 71 of the sliding door 7 always slides inside the lower guide rail 31 on the back of the hinged door 3.

[0027] Therefore, this door has both a hinged door with a swing function and a sliding door with a push-pull function, and can be linked together through a docking mechanism.

[0028] Most importantly, a lower positioning and guidance mechanism has been introduced. This fundamentally changes the shortcomings of the bottom of the sliding door panel in existing technology, providing stable bottom support and precise movement trajectory guidance for the sliding door panel, which is the basis for solving the problems of shaking, impact and noise.

[0029] In one embodiment: the lower guide rail 31 has a "Z" shaped cross section, and its top and the sliding door 3 form a top opening guide area 32; the lower guide block 71 includes a guide seat 711 connected to the sliding door 7, and the guide seat 711 extends downward to provide a guide head 712, which extends into the guide area 32 and slides.

[0030] In this embodiment, the lower guide rail 31 is designed with a "Z"-shaped cross-section to mate with the back of the sliding door leaf 3, forming a guide area 32 with a top opening. The lower guide block 71 includes a guide seat 711 that is firmly connected to the sliding door leaf 7, and a guide head 712 extending downward from the guide seat 711. When the door system moves, the guide head 712 is precisely inserted into the guide area 32 formed by the lower guide rail 31 and slides therein.

[0031] The "Z"-shaped guide rail, combined with the guide head, effectively prevents the bottom of the sliding door from swaying laterally during the sliding process.

[0032] In addition, the "Z" shaped design makes full use of space, resulting in a high degree of integration of the entire lower guide mechanism without taking up too much door thickness.

[0033] In one embodiment: the guide head 712 is provided with an isolation block 713 protruding in the direction of the sliding door 7, and the isolation block 713 is in contact with the lower guide rail 31.

[0034] In this embodiment, an isolation block 713 is protruding on the guide head 712 on the side facing the sliding door leaf 7, that is, the side opposite to the inner wall of the lower guide rail. When the guide head 712 slides within the guide area 32, this isolation block 713 contacts the inner wall of the lower guide rail 31.

[0035] In this embodiment, the isolation block 713 is usually made of wear-resistant, low-friction, or elastic materials, such as plastic or rubber. Its presence can reduce the direct metal collision that may occur between the guide head 712 and the lower guide rail 31, thereby effectively absorbing vibration and reducing operating noise.

[0036] In addition, the isolation block 713, as a wear component, protects the main guide head and guide rail structure, extending the system's service life. Simultaneously, the isolation block's elastic or low-friction characteristics help ensure a smoother sliding process and reduce jamming.

[0037] In one embodiment: the bottom of the lower guide rail 31 extends forward and is provided with a lower support plate 33, which covers the bottom of the hinged door 3.

[0038] In this embodiment, a lower support plate 33 extends forward from the bottom of the lower guide rail 31, i.e., toward the front or outside of the door leaf. The function of this lower support plate 33 is to cover the bottom area of ​​the hinged door leaf 3.

[0039] In this embodiment, the lower support plate 33 can conceal the lower edge of the hinged door leaf 3 and the mounting structure of the lower guide rail 31, making the bottom of the entire door leaf look neater and more integrated, thus improving the overall aesthetics of the product. Simultaneously, covering the bottom of the hinged door leaf 3 protects the door leaf edges from daily bumps, scratches, or liquid corrosion, extending the door leaf's lifespan. Furthermore, the smooth surface of the lower support plate is easier to clean, preventing dust and debris from accumulating at the bottom of the door leaf.

[0040] In one embodiment: the guide seat 711 is provided with a plurality of mounting holes 714, and the fixing screws 715 pass through the mounting holes to install with the sliding door 7.

[0041] In this embodiment, the guide seat 711 body has several mounting holes 714. By passing the fixing screws 715 through these mounting holes, the guide seat 711 can be firmly fixed to the back of the sliding door leaf 7.

[0042] In one embodiment: the lower guide rail 31 is made of aluminum profile and has several fixing holes, through which fixing screws pass to fix the door leaf 3.

[0043] In this embodiment, the lower guide rail 31 is made of extruded aluminum profile, and its structure has pre-drilled fixing holes. By passing fixing screws through these holes, the lower guide rail 31 is securely fixed to the back of the hinged door leaf 3. Aluminum profiles have advantages such as being lightweight, high-strength, corrosion-resistant, and easy to process and form, making them suitable as a material for door and window guide rails. At the same time, the aluminum profile extrusion process ensures the dimensional accuracy and surface finish of the guide rail, ensuring smooth sliding of the lower guide block within it.

[0044] In summary, this utility model provides a splicing door system with a bottom-guiding function, the core of which is to solve the problem caused by the free suspension of the bottom of the sliding door leaf in traditional PD doors or docking doors. Its overall working principle is as follows: When a user needs to open or close the doorway, the first step is to operate the hinged door 3. The hinged door 3 moves in a swing motion on the door frame 2 via the hinge 1. When the hinged door 3 is fully closed, the movable mating seat 8 at the end of the first guide rail 4 at its top precisely mates with and locks into place the fixed mating seat 9 at the end of the second guide rail 5 at the top of the door frame 2. This mating process allows for smooth horizontal communication between the first guide rail 4 and the second guide rail 5, providing a continuous top sliding path for the sliding door 7.

[0045] After the top connection is completed, the sliding door 7 can smoothly slide horizontally within the continuously connected second guide rail 5 and first guide rail 4 via its hanging roller assembly 6. Whether the sliding door 7 slides independently or in conjunction with the hinged door 3, its top movement is precisely guided by the guide rail system.

[0046] The key innovation and core advantage of this utility model lies in the positioning and guiding of the bottom of the sliding door leaf 7: On the back of the hinged door 3, a lower guide rail 31 with a "Z"-shaped cross-section is fixedly installed. This "Z"-shaped structure cooperates with the back of the hinged door 3 to form a guide area 32 with a top opening. At the same time, a lower guide block 71 is installed at a corresponding position on the back of the sliding door 7. This lower guide block 71 consists of a guide seat 711 that is firmly connected to the sliding door 7 and a guide head 712 that extends downward and is inserted into the guide area 32 of the lower guide rail 31.

[0047] Throughout the operation of the entire door system, including the opening of the hinged door 3 and the sliding of the sliding door 7, the guide head 712 of the lower guide block 71 of the sliding door 7 is always confined within the guide area 32 formed by the lower guide rail 31 on the back of the hinged door 3. This means that no matter how the sliding door 7 moves, its bottom will not suspend freely or wobble randomly as in existing technologies. The lower guide rail 31 provides continuous and precise lateral and vertical limiting support for the lower guide block 71.

[0048] To further optimize the sliding experience and extend service life, an isolation block 713 is also provided on the side of the guide head 712 facing the sliding door leaf 7. The isolation block 713 is made of wear-resistant material and contacts the inner wall of the lower guide rail 31, playing a role in buffering, shock absorption and reducing friction, thereby further reducing noise generation and preventing component wear.

[0049] In addition, the bottom of the lower guide rail 31 extends forward to form a lower support plate 33, which covers the bottom of the hinged door 3. This not only enhances the overall aesthetics of the door, but also provides additional protection for the lower edge of the door.

[0050] Through this innovative combination of top guide rail docking and bottom guide limit, this invention achieves comprehensive and precise control over the movement trajectory of sliding door panels in a modular door system. It fundamentally solves the problems of bottom wobbling of sliding door panels, noise caused by impacts with hinged door panels, and component wear found in existing technologies. Ultimately, this system provides a modular door solution that offers extremely smooth operation, minimal noise, longer service life, and a simpler appearance, thus enabling its widespread adoption.

[0051] 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 splicing door system with a bottom-guided function, characterized in that: It includes a hinged door leaf (3) mounted on a door frame (2) via a door hinge (1), and a first guide rail (4) is fixedly mounted on the top of the hinged door leaf (3); It also includes a second guide rail (5) fixed to the top of the door frame (2), and a sliding door leaf (7) is slidably installed in the second guide rail (5) through a set of hanging wheels (6); It also includes a movable docking seat (8) installed at the end of the first guide rail (4) and a fixed docking seat (9) installed at the end of the second guide rail (5). When the door leaf (3) is closed, the movable docking seat (8) and the fixed docking seat (9) dock with each other, so that the first guide rail (4) and the second guide rail (5) are connected. It also includes a lower guide rail (31) set on the back of the sliding door (3), and correspondingly, a lower guide block (71) is set on the back of the sliding door (7), and the lower guide block (71) slides within the lower guide rail (31).

2. The splicing door system with downward guiding function according to claim 1, characterized in that: The lower guide rail (31) has a Z-shaped cross section, and its top and the hinged door leaf (3) form a top opening guide area (32); the lower guide block (71) includes a guide seat (711) connected to the sliding door leaf (7), and the guide seat (711) extends downward to provide a guide head (712), which extends into the guide area (32) and slides.

3. The splicing door system with bottom-guiding function according to claim 2, characterized in that: The guide head (712) is provided with an isolation block (713) protruding in the direction of the sliding door leaf (7), and the isolation block (713) is in contact with the lower guide rail (31).

4. The splicing door system with bottom-guide function according to any one of claims 1 and 2, characterized in that: The lower guide rail (31) extends forward at its bottom and is provided with a lower support plate (33), which covers the bottom of the hinged door (3).

5. The splicing door system with bottom-guiding function according to claim 2, characterized in that: The guide seat (711) is provided with several mounting holes (714), and the fixing screw (715) passes through the mounting holes to install with the sliding door leaf (7).

6. The splicing door system with bottom-guiding function according to claim 1, characterized in that: The lower guide rail (31) is made of aluminum profile and has several fixing holes. Fixing screws pass through the fixing holes and are fixed to the door leaf (3).

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