Primary-secondary door leaf with anti-deformation structure

Abstract

The utility model discloses a primary-secondary door leaf with an anti-deformation structure, which comprises a first door leaf used as a secondary door and a second door leaf used as a primary door, and laminated veneer lumber is arranged at the adjacent ends of the first door leaf and the second door leaf. The laminated veneer lumber and the hollow shaving board arranged on the side of the laminated veneer lumber are used as core materials of the first door leaf and the second door leaf; the front side and the rear side of the laminated veneer lumber and the hollow-core shaving board are respectively provided with a medium-density fiberboard, the outer surfaces of the medium-density fiberboards are coated with facing material layers, and edge sealing materials are arranged at the ends of the laminated veneer lumber and the hollow-core shaving board. The high-strength laminated veneer lumber is adopted as one part of the core plate, the overall strength of the door leaf is guaranteed, the other part of the core plate is made of the hollow-core shaving board, and gaps used for absorbing deformation are formed in the hollow-core shaving board. In addition, the medium-density fiberboards arranged on the surfaces of the laminated veneer lumber and the hollow-core shaving board are made of soft materials, small gaps exist in the medium-density fiberboards, and the anti-deformation effect can also be achieved.

Description

Technical Field

[0001] This utility model relates to the field of home decoration, and in particular to a mother-and-child door leaf with a deformation-resistant structure. Background Technology

[0002] A double door, also known as a mother-and-child door, is a special type of double-leaf door. It consists of a smaller door leaf (the child door) and a larger door leaf (the mother door). It is typically used when the doorway is wide enough that two identical double doors cannot be installed. The double door is made up of two door leaves of different widths, mounted on the door frame by hinges and other hardware, and can be opened independently or simultaneously.

[0003] For example, patent application No. 202410694438.8 discloses a soundproof double door structure, including a main door and a secondary door. The main door and the secondary door have matching door panel stops on their adjacent sides. The main door and the secondary door are respectively fixedly installed inside the main door and the secondary door. Door panels are fixedly connected to both sides of the main door and the secondary door. The main door support is fixedly connected inside the main door frame. Soundproofing panels are installed on the upper and lower sides of the main door support and fixedly connected to the main door frame. The secondary door support is fixedly connected inside the secondary door frame. Soundproofing cotton strips fixedly connected to the secondary door frame are glued to the surface of the secondary door support.

[0004] The above technical solution uses internal frames for support in the main door and the secondary door, and fills the frames with sound insulation material. This not only improves the sound insulation effect and reduces the transmission of noise, but also reduces deformation and improves stability and security due to the internal frame support. In addition, the door panels are relatively lightweight, which improves installation flexibility.

[0005] However, due to the significant difference in expansion properties between metal parts and wooden materials, the above-mentioned technical solutions will cause both to bend, warp, twist and other deformations to varying degrees under the same humidity environment, resulting in the loosening of the connection structure. Moreover, this phenomenon will become more and more serious as the size of the cabinet door increases.

[0006] Therefore, it is necessary to improve such a structure to overcome the above-mentioned defects. Utility Model Content

[0007] The purpose of this invention is to provide a door leaf with a deformation-resistant structure to solve the problems existing in the prior art.

[0008] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0009] A door leaf with a deformation-resistant structure includes a first door leaf used as a child door and a second door leaf used as a mother door. The adjacent ends of the first door leaf and the second door leaf are provided with laminated veneer material. The laminated veneer material and hollow particleboard disposed on the side of the laminated veneer material are used as the core material of the first door leaf and the second door leaf.

[0010] Medium-density fiberboard (MDF) is provided on the front and rear sides of the laminated veneer lumber (LVL) and hollow particleboard, respectively. The outer surface of the MDF is covered with a finishing material layer, and edge sealing material is provided at the ends of the LVL and hollow particleboard.

[0011] Furthermore, the adjacent ends of the first door leaf and the second door leaf are provided with a limiting structure. The limiting structure includes a protruding end provided on the first door leaf and an opening groove provided on the second door leaf. The opening groove has an L-shaped main structure.

[0012] Furthermore, a handle is provided on the second door leaf used as the main door, and the handles are symmetrically arranged on the inner and outer sides of the second door leaf.

[0013] Furthermore, the medium-density fiberboard is provided with a decorative groove that extends along the length of the second door leaf.

[0014] In summary, this utility model has the following beneficial effects:

[0015] By using high-strength laminated veneer lumber as part of the core board, the overall strength of the door leaf is ensured. The other part of the core board uses hollow particleboard, which has voids inside to absorb deformation. In addition, medium-density fiberboard (MDF), a soft material with small internal voids, is placed on the surface of the laminated veneer lumber and hollow particleboard, which also helps to resist deformation. Attached Figure Description

[0016] Figure 1 This is a front view of the mother-daughter door leaf with anti-deformation structure described in this utility model.

[0017] Figure 2 This is a top view of the mother-daughter door leaf with anti-deformation structure described in this utility model.

[0018] Figure 3 This is a cross-sectional view of the mother-daughter door leaf with anti-deformation structure described in this utility model. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with the illustrations and specific embodiments.

[0020] like Figures 1 to 3As shown, the present invention proposes a door leaf with a deformation-resistant structure, including a first door leaf 1 used as a child door and a second door leaf 2 used as a mother door. The adjacent ends of the first door leaf 1 and the second door leaf 2 are provided with veneer laminate 3. The veneer laminate 3 and the hollow particleboard 4 provided on the side of the veneer laminate 3 are used as the core material of the first door leaf 1 and the second door leaf 2.

[0021] Medium-density fiberboard (MDF) 5 is provided on the front and rear sides of the laminated veneer lumber (3) and hollow particleboard (4), respectively. The outer surface of the MDF 5 is covered with a finishing material layer 6, and edge sealing material 7 is provided at the ends of the laminated veneer lumber (3) and hollow particleboard (4).

[0022] The adjacent ends of the first door leaf 1 and the second door leaf 2 are provided with a limiting structure. The limiting structure includes a protruding end 8 on the first door leaf 1 and an opening groove 9 on the second door leaf 2. The opening groove 9 has an L-shaped main structure.

[0023] A handle 10 is provided on the second door leaf 2, which is used as the main door. The handles 10 are symmetrically arranged on the inner and outer sides of the second door leaf 2.

[0024] The medium-density fiberboard 5 is provided with a decorative groove 51, which extends along the length of the second door leaf 2.

[0025] The working principle of this utility model is as follows:

[0026] By using high-strength laminated veneer lumber 3 as part of the core board, the overall strength of the door leaf is ensured. The other part of the core board uses hollow particleboard 4, which has voids inside to absorb deformation. In addition, the medium-density fiberboard 5, which is a soft material and has small voids inside, is placed on the surface of the laminated veneer lumber 3 and the hollow particleboard 4, and also plays a role in resisting deformation.

[0027] In this document, the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer", "vertical", and "horizontal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the purpose of clarifying the technical solution and for the convenience of description, and therefore should not be construed as limiting the present utility model.

[0028] In this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0029] 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. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A door leaf with a deformation-resistant structure, comprising a first door leaf (1) serving as a child door and a second door leaf (2) serving as a mother door, characterized in that, The adjacent ends of the first door leaf (1) and the second door leaf (2) are provided with veneer laminate (3), and the veneer laminate (3) and the hollow particleboard (4) provided on the side of the veneer laminate (3) are used as the core material of the first door leaf (1) and the second door leaf (2). Medium density fiberboard (5) is provided on the front and rear sides of the laminated veneer lumber (3) and the hollow particleboard (4), respectively. The outer surface of the medium density fiberboard (5) is covered with a decorative material layer (6), and edge sealing material (7) is provided at the ends of the laminated veneer lumber (3) and the hollow particleboard (4).

2. The sub-leaf with anti-deformation structure according to claim 1, characterized in that, The adjacent ends of the first door leaf (1) and the second door leaf (2) are provided with a limiting structure. The limiting structure includes a protruding end (8) provided on the first door leaf (1) and an opening groove (9) provided on the second door leaf (2). The opening groove (9) has an L-shaped main structure.

3. The sub-leaf with anti-deformation structure according to claim 1, characterized in that, A handle (10) is provided on the second door leaf (2) used as the main door, and the handles (10) are symmetrically arranged on the inner and outer sides of the second door leaf (2).

4. The sub-leaf with anti-deformation structure according to claim 1, characterized in that, The medium-density fiberboard (5) is provided with a decorative groove (51), which extends along the length of the second door leaf (2).

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