Arc-shaped door

Abstract

The arc-shaped door comprises a door frame, the door frame is formed by splicing and gluing a plurality of frame strips, connecting pieces used for fixing are arranged between the frame strips in a penetrating mode, each frame strip comprises stand columns located on the two sides, an arch-shaped part is connected between the tops of the two stand columns, and the stand columns and the arch-shaped part are integrally formed. When the arc-shaped door is applied, the door frame adopts the design of the stand columns and the arch-shaped parts which are integrally formed, structural weak points possibly generated by traditional segmented splicing are avoided, the overall strength is higher, the deformation resistance is higher, the arc-shaped door is fixed through cooperation of the connecting pieces and glue, the assembling process of the arc-shaped door is simplified, accurate alignment of the frame strips is ensured, and the manual adjustment time is shortened.

Description

An arched door Technical Field

[0001] This utility model relates to the field of door frame technology, and in particular to an arc-shaped door. Background Technology

[0002] Currently, most wooden doors on the market are made from a single piece of timber, according to the required specifications. This type of door is prone to cracking and warping after prolonged use. Furthermore, the use of a single piece of timber requires the consumption of a large number of old, mature trees, causing significant damage to the natural environment. It also involves multi-layered solid wood laminated together with a surface layer of MDF; this method is costly and has a long production cycle. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the purpose of this utility model is to provide an arc-shaped door.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] An arched door includes a door frame formed by splicing and gluing together several frame strips, with connecting members for fixing inserted between each frame strip. Each frame strip includes uprights on both sides, and an arched portion is connected between the tops of the two uprights. The uprights and the arched portion are integrally formed.

[0006] Furthermore, each of the frame bars is provided with a number of connecting holes, and the connector is fixed in the connecting holes.

[0007] Furthermore, expansion joints are provided on the splicing surfaces between adjacent frame strips.

[0008] Furthermore, both the inner and outer surfaces of the door frame are covered with adhesive panels.

[0009] Furthermore, the panel is a single-layer melamine plate.

[0010] Furthermore, edge banding strips are arranged at both ends of the door frame, and the edge banding strips are used to seal the edges of the panel.

[0011] Furthermore, the frame strip is cut from MDF.

[0012] Furthermore, the connector is a wooden tenon.

[0013] The beneficial effects of this utility model are:

[0014] 1. The present invention proposes an arc-shaped door with an integrally molded column and arch design for the door frame, which avoids the structural weaknesses that may occur in traditional segmented splicing, resulting in higher overall strength and stronger resistance to deformation. The assembly process of the arc-shaped door is simplified by using connectors and adhesive to fix it, ensuring that each frame strip is accurately aligned and reducing manual adjustment time.

[0015] 2. The arc-shaped door proposed in this utility model features a standardized connection hole and segmented frame design, which allows for flexible adjustment of the door frame length, making it suitable for door openings of different sizes and reducing customization costs.

[0016] 3. The arc-shaped door proposed in this utility model effectively prevents the edge of the panel from being worn, damp, or warped by setting the edge sealing strip, thereby enhancing its durability. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 is a schematic diagram of an arc-shaped door according to the present invention;

[0019] Figure 2 is a front view of an arc-shaped door according to this utility model;

[0020] Figure 3 is a side view of an arc-shaped door according to this utility model;

[0021] Figure 4 is a top view of an arc-shaped door according to this utility model.

[0022] In the diagram, 10 is the door frame; 101 is the frame strip; 1011 is the post; 1012 is the arch; and 1013 is the connecting hole. Detailed Implementation

[0023] The present invention will now be described in detail with reference to Figures 1-3.

[0024] An arched door includes a door frame 10, which is formed by splicing and gluing together several frame strips 101. Connectors for fixing are provided between each frame strip 101. Each frame strip 101 includes a column 1011 located on both sides. An arched portion 1012 is connected between the tops of the two columns 1011. The columns 1011 and the arched portion 1012 are integrally formed.

[0025] The door frame 10 adopts a one-piece molded column 1011 and arch 1012 design, avoiding structural weaknesses that may arise from traditional segmented splicing, resulting in higher overall strength and stronger resistance to deformation. The arch 1012 can be adjusted in curvature according to different architectural needs, such as semi-circular, parabolic, or custom curves, suitable for various door opening designs. The standardized connecting holes 1013 and segmented frame strips 101 design allow for flexible adjustment of the length of the door frame 10, suitable for door openings of different sizes, reducing customization costs.

[0026] In this embodiment, each frame strip 101 is provided with a plurality of corresponding connecting holes 1013, and the connectors are fixed in the connecting holes 1013. Using connectors, such as wooden dovetails or metal pins, and adhesive bonding, the assembly process of the curved door is simplified, ensuring precise alignment of each frame strip 101 and reducing manual adjustment time. The connecting holes 1013 are hidden in a non-visible surface and concealed by decorative covers, keeping the door frame 10 clean and avoiding exposed fasteners that affect aesthetics. Some connectors support tool-less installation, facilitating later maintenance or panel replacement.

[0027] In this embodiment, an expansion joint is also provided on the splicing surface between adjacent frame strips 101. The grooved or wavy splicing surface, combined with an elastic rubber strip, allows the door frame 10 to naturally expand and contract with changes in temperature and humidity, preventing cracking or deformation. The expansion joint structure can absorb stress caused by minor vibrations or building settlement, extending its service life.

[0028] In this embodiment, both the inner and outer surfaces of the door frame 10 are covered with an adhesive panel. Furthermore, the panel is a single-layer melamine board. The panel can be made of materials such as melamine board or solid wood veneer to meet different decoration style requirements and enhance the decorative effect.

[0029] In this embodiment, edge banding strips are arranged at both ends of the door frame 10 to seal the edges of the panel. The edge banding strips effectively prevent edge wear, moisture damage, or warping, enhancing durability. The concealed edge banding design makes the surface of the door frame 10 smooth and visually cleaner, suitable for high-end decorative scenarios.

[0030] In this embodiment, the frame strip 101 is cut from MDF. The MDF uses recycled wood fiberboard or bamboo laminated timber, reducing dependence on natural wood and meeting green building standards; the formaldehyde-free finishing material improves indoor air quality. Pre-drilled connection holes 1013 are made at the joints of the frame strip 101, into which wooden doves are inserted as connectors. After gluing the joint surfaces, pressure is applied using clamps to cure the joints, forming a stable overall structure.

[0031] The frame strip 101 is cut from MDF or composite materials. The arched portion 1012 can be adapted to different building openings, such as semicircles, ellipses, or custom curves. Pre-drilled connection holes 1013 are made at the joints of the frame strips 101, into which wooden doves are inserted as connectors. After gluing the joint surfaces, pressure is applied using clamps to cure the joints, forming a stable overall structure. The joint surfaces of adjacent frame strips 101 are machined into grooves or wavy interfaces, with pre-reserved expansion joints and embedded elastic strips to adapt to environmental deformation. The frame strips 101 are designed in sections, with standardized connection holes 1013. Users can add or remove frame strips 101 according to the door opening size and quickly assemble them using connectors. The inner and outer panels of the door frame 10 can be made of melamine board or solid wood veneer, with the edges sealed with edge banding strips.

[0032] In this embodiment, the connector is a wooden dovetail. Alternatively, a pre-embedded metal clip or carbon fiber reinforced rod can be used to replace the traditional wooden dovetail, offering higher shear and torsional resistance than traditional wooden dovetails. This is suitable for large-span or high-load-bearing curved doors, improving the torsional resistance between the frame strips 101.

[0033] The present invention provides an arc-shaped door, the manufacturing method of which is as follows:

[0034] 1. Based on the size requirements of the irregular door opening, use materials such as MDF and use a machining center to mill out the required dimensions of the frame. The number of frames depends on the depth of the door opening. Specifically, use a CNC machining center to perform three-dimensional milling on the MDF / MDF to complete the forming of the column 1011, the arch 1012 and the irregular connecting surface in one go. The edges are chamfered to avoid stress concentration.

[0035] 2. Dowel connection holes 1013 need to be drilled on the frame. Glue and dowels are used to connect them. Use a bench drill with positioning clamps to drill holes on the splicing surface of the frame strips 101. The holes are distributed in a diamond shape to enhance shear resistance. Epoxy resin glue is pre-coated on the surface of the dowels. After insertion, pulse pressure is applied to make the glue penetrate evenly into the wood fibers.

[0036] 3. Use 2mm single-layer melamine paper MDF on both the inner and outer sides, or use common 5mm single-layer melamine board for sanding, and cut according to the visible size of the inner side;

[0037] 4. Apply all-purpose adhesive evenly to the panel and frame, then bond them together. Use a notched scraper to apply contact-type neoprene adhesive to the frame and panel, and let it dry to the touch. Use a flip-type press to first align one side of the panel, then gradually press to remove air bubbles. Use a silicone roller to manually press irregularly shaped parts. Place the whole assembly into a cold press to ensure that the adhesive layer is fully cross-linked.

[0038] 5. Use the same color edge banding strip to manually seal the edges. Before sealing, use an edge milling cutter to trim excess material from the panel to ensure a smooth seam. After sealing, use an edge trimming knife to remove burrs and then use color wax to repair minor color differences.

[0039] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the scope of protection of this utility model.

Claims

1. An arc-shaped door, characterized in that, The device includes a door frame, which is formed by splicing and pressing several frame strips together. Connectors for fixing are provided between the frame strips. Each frame strip includes uprights on both sides, and an arched portion is connected between the tops of the two uprights. The uprights and the arched portion are integrally formed.

2. The arc-shaped door as described in claim 1, characterized in that, Each of the frame bars has a number of corresponding connecting holes, and the connector is fixed in the connecting holes.

3. The arc-shaped door as described in claim 1, characterized in that, Expansion joints are also provided at the splicing surfaces between adjacent frame strips.

4. An arc-shaped door as described in claim 1, characterized in that, Both the inner and outer surfaces of the door frame are covered with adhesive panels.

5. An arc-shaped door as described in claim 4, characterized in that, The panel is a single-layer melamine board.

6. An arc-shaped door as described in claim 4, characterized in that, Edge sealing strips are arranged at both ends of the door frame, and the edge sealing strips are used to seal the edges of the panel.

7. An arc-shaped door as described in claim 1, characterized in that, The frame strip is cut from MDF.

8. An arc-shaped door as described in claim 1, characterized in that, The connector is a wooden tenon.

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