Molded door framework structure

By introducing a rectangular metal frame structure and glue injection system into the molded door, the bubble and cracking problems of molded doors during drilling are solved, and the stability and installation convenience of molded doors are achieved.

CN223281937UActive Publication Date: 2025-08-29ZHEJIANG KUCHUAN DOOR IND CO LTD
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Patent Information

Application Number
CN202422594839.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-24
Publication Date
2025-08-29
Estimated Expiration
2034-10-24

AI Technical Summary

Technical Problem

Existing molded doors are prone to bubbles, fall off and cracking when drilling lock installation holes.

Method used

The rectangular metal frame structure is adopted, including wooden upper door panels, middle door panels and lower door panels. The middle door panel is surrounded by a rectangular metal frame and is equipped with installation grooves and installation holes. The glue layer is uniformly applied through the glue injection cavity and the glue cavity to avoid cutting and drilling holes directly on the middle plate body.

Benefits of technology

It improves the stability and compressive resistance of molded doors, avoids cracking and falling off, and ensures the convenience of installation and the stability of the overall structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a mould pressing door framework structure which comprises a wooden upper door plate, a middle door plate and a wooden lower door plate which are stacked and bonded in a cold pressing mode, the middle door plate comprises a rectangular metal frame and a wooden middle plate body which is surrounded and fixed through the rectangular metal frame, an installation groove for installing a lock is formed in the rectangular metal frame, and an installation hole is formed in the installation groove. An original mold pressing door is changed into a wood skeleton structure with the rectangular metal frame, the mounting groove for mounting the lock is formed in the rectangular metal frame, the mounting hole is formed in the mounting groove, the mold pressing door plate is firmer, more stable and resistant to pressure, and the mounting groove in the rectangular metal frame promotes stacking, cold pressing and bonding of the middle door plate, the upper door plate and the lower door plate; the lock can be directly installed after glue injection is completed, cracking and damage to the middle plate body and the glue layer caused by cutting of the installation groove and installation drill holes are avoided, overall machining and installation are convenient and flexible, and the internal structure of the whole mold pressing door plate is kept stable and not prone to deformation and cracking.
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Description

Technical Field

[0001] The present application relates to the fields of construction and home decoration, and in particular to a molded door frame structure. Background Art

[0002] The internal structure of the molded door is uniform and stable, not easy to deform, has a smooth surface and good wear resistance.

[0003] The existing general structure is composed of three high-density fiber molded door panels that are cold-pressed and composited with a glue layer to form a molded door. The molded door is moisture-proof, has a small expansion coefficient, and is resistant to deformation.

[0004] Since molded doors are molded structures, their interior texture is soft and their strength is low. When drilling holes to install locks, the glue layer and internal structure of the molded door panels are easily damaged, causing the molded door panels to bubble and fall off, and the molded doors to deform and crack. Utility Model Content

[0005] Based on the disadvantages of the prior art that molded doors are prone to blistering, falling off and cracking when drilling lock installation holes, the utility model provides a molded door skeleton structure.

[0006] The technical solution adopted by the present invention to solve the above technical problems is:

[0007] The molded door frame structure includes stacked and cold-pressed wooden upper door panels, middle door panels, and wooden lower door panels. The middle door panel includes a rectangular metal frame and a wooden middle panel body surrounded and fixed by the rectangular metal frame. The rectangular metal frame is provided with an installation groove for installing a lock, and the installation groove is provided with an installation hole.

[0008] Preferably, the rectangular metal frame includes an upper frame, a left frame, a lower frame, and a right frame connected in sequence; the length of the right frame is equal to the sum of the widths of the upper frame, the lower frame, and the middle plate.

[0009] Preferably, rectangular notches are provided on the upper and lower edges of the right ends of the upper frame, the lower frame and the middle plate, and the rectangular notches on the upper and lower edges are connected to form a straight line.

[0010] Preferably, the mounting groove is arranged on the right side wall of the right frame, and the mounting hole is arranged at the bottom of the mounting groove.

[0011] Preferably, a glue injection cavity and a glue diffusion cavity are provided inside the right frame from right to left, and a glue hole is provided in the middle of the glue injection cavity and the glue diffusion cavity to connect the two; the glue injection cavity is connected to the mounting hole, and glue diffusion holes are provided above and below the left end of the glue diffusion cavity.

[0012] Preferably, the glue diffusion hole and the rectangular gap are connected, and the glue is injected into the mounting hole and flows into the glue injection cavity, and then enters the glue diffusion cavity through the glue hole from the glue injection cavity. After entering the glue diffusion cavity, it overflows from the glue diffusion hole into the upper and lower rectangular gaps, and overflows outside the rectangular gap after filling the rectangular gap.

[0013] Preferably, a transverse partition is provided between the glue injection cavity and the glue diffusion cavity to divide the glue injection cavity and the glue diffusion cavity into two.

[0014] Preferably, two mounting holes are provided, and the two holes are connected to the glue injection cavity on the upper side and the lower side respectively.

[0015] Preferably, the upper glue injection cavity is communicated with the upper glue diffusion cavity, and the lower glue injection cavity is communicated with the lower glue diffusion cavity.

[0016] Preferably, the glue injection cavity is narrow in the middle, and its width gradually increases from the middle to both sides.

[0017] Compared with the prior art, the advantages of the present invention are as follows: the present application changes the original molded door into a wooden frame structure with a rectangular metal frame, and an installation groove for installing a lock is provided on the rectangular metal frame, and an installation hole is provided in the installation groove, so that the molded door panel is more firm, stable and pressure-resistant. The installation groove on the rectangular metal frame can complete the internal glue injection to form upper and lower glue layers, thereby promoting the stacking and cold pressing of the middle door panel, upper door panel and lower door panel, which is simple and convenient to operate; the lock can also be directly installed after the glue injection is completed, avoiding the cracking and damage to the middle plate body and the glue layer caused by cutting the installation groove and drilling the installation holes, making the overall processing and installation convenient and flexible, and keeping the internal structure of the entire molded door panel stable and not easy to deform and crack. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and should not be construed as limiting the scope of the present invention. Furthermore, unless otherwise specified, the drawings are merely schematic representations of the composition or structure of the depicted objects and may contain exaggerated representations. Furthermore, the drawings are not necessarily drawn to scale.

[0019] Figure 1 This is an exploded view of the application;

[0020] Figure 2 This is a top view of the middle door panel;

[0021] Figure 3 It is a cross-sectional view of the middle door panel;

[0022] Figure 4 This is a cross-sectional view of the middle door panel;

[0023] Figure 5 for Figure 3Enlarged view of point H in the middle;

[0024] In the figure: 10, upper door panel; 20, middle door panel; 200, rectangular notch; 201, mounting groove; 202, mounting hole; 203, upper frame; 204, left frame; 205, lower frame; 206, right frame; 207, middle panel; 208, glue injection cavity; 209, glue diffusion cavity; 210, glue hole; 211, horizontal partition; 212, glue diffusion hole; 30, lower door panel. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0026] It should be noted that like reference numerals denote like items in the following drawings, and thus, once an item is defined in one drawing, it may not be further defined or explained in subsequent drawings.

[0027] This embodiment mainly describes the structure of the molded door frame, as follows:

[0028] Molded door frame structure, refer to the attached Figure 1-Figure 5 , comprising a wooden upper door panel 10, a middle door panel 20, and a wooden lower door panel 30 that are stacked and cold-pressed and bonded together. The middle door panel 20 comprises a rectangular metal frame and a wooden middle panel body 207 that is surrounded and fixed by the rectangular metal frame. The rectangular metal frame is provided with a mounting groove 201 for mounting a lock, and the mounting groove 201 is provided with a mounting hole 202. This solution sets a metal frame outside the middle door panel 20 to surround the middle door panel 20, thereby improving the strength of the middle door panel 20. In addition, the mounting groove 201 and the mounting hole 202 are provided on the metal frame for mounting the lock, avoiding the problem of slotting and opening holes in the molded middle door panel 20, which affects the strength of the door panel, and also avoids damage to the door panel when opening holes. At the same time, installing the lock in the mounting groove 201 is more stable.

[0029] Preferably, the rectangular metal frame comprises an upper frame 203, a left frame 204, a lower frame 205, and a right frame 206, which are connected in sequence. The length of the right frame 206 is equal to the sum of the widths of the upper frame 203, the lower frame 205, and the middle panel 207. The four frames are connected in sequence to form a rectangular frame, which surrounds and secures the middle panel 207 in the center. Together with the middle panel 207, it forms the middle door panel 20. This ensures that the middle door panel 20 is evenly stressed and more stable, relieves pressure from the upper door panel 10 and the lower door panel 30, and increases the compressive and load-bearing capacity of the middle door panel 20.

[0030] Preferably, rectangular notches 200 are provided on the upper and lower edges of the right ends of the upper frame 203, the lower frame 205, and the middle panel 207. The rectangular notches 200 on the upper and lower edges are connected to form a straight line. The rectangular notches 200 on the upper and lower edges create a gap, which facilitates the flow of glue out of the gap during glue injection. The flowed glue is evenly applied to the upper and lower surfaces of the middle door panel 20 to form a glue layer, so that the upper surface is bonded to the upper door panel 10 and the lower surface is bonded to the lower door panel 30. The three door panels are stacked and cold-pressed to form a molded door.

[0031] Preferably, the mounting groove 201 is provided on the right side wall of the right frame 206, and the mounting hole 202 is provided at the bottom of the mounting groove 201. The mounting groove 201 is provided on the right frame 206, and no holes are directly cut or drilled on the middle plate 207 made of a special material. This avoids damage to the middle plate 207 and the glue layer, maintaining the stability of the entire middle door panel 20. The mounting hole 202 facilitates glue injection and installation of the lock cylinder.

[0032] Preferably, a glue injection cavity 208 and a glue diffusion cavity 209 are provided inside the right frame 206 from right to left. A glue hole 210 is provided between the glue injection cavity 208 and the glue diffusion cavity 209 to connect the two. The glue injection cavity 208 is connected to the mounting hole 202, and glue diffusion holes 212 are provided above and below the left end of the glue diffusion cavity 209. The glue holes 210 are evenly spaced and arranged in rows to facilitate the uniform and rapid flow of glue from the glue injection cavity 208 into the glue diffusion cavity 209. Glue diffusion holes 212 are provided above and below the left end of the glue diffusion cavity 209 to facilitate the glue to flow out of the glue diffusion holes 212 from the top and bottom of the glue diffusion cavity 209, respectively.

[0033] Preferably, the glue diffusion hole 212 is connected to the rectangular notch 200. After being injected into the mounting hole 202, the glue flows into the glue injection cavity 208, then enters the glue diffusion cavity 209 from the glue injection cavity 208 through the glue hole 210. After entering the glue diffusion cavity 209, it overflows from the glue diffusion hole 212 into the upper and lower rectangular notches 200, and overflows outside the rectangular notch 200 after filling the rectangular notch 200. After the glue enters the mounting groove 201, the mounting hole 202, the glue injection cavity 208, the glue hole 210, the glue diffusion cavity 209, the glue diffusion hole 212, the rectangular notch 200, and the outside of the rectangular notch 200 in sequence from right to left, the glue injection is completed. The glue outside the rectangular notch 200 at the upper and lower edges is evenly applied to the upper and lower surfaces of the middle door panel 20 to form a glue layer. The middle door panel 20 is then stacked with the upper door panel 10 and the lower door panel 30 and cold-pressed to form a molded door.

[0034] Preferably, a transverse partition 211 is provided between the glue injection cavity 208 and the glue diffusion cavity 209 to divide the glue injection cavity 208 and the glue diffusion cavity 209 into two equal parts. The transverse partition 211 is provided to divide the glue injection cavity 208 and the glue diffusion cavity 209 into two identical upper and lower glue injection cavities 208 and glue diffusion cavities 209, respectively, so as to guide the glue to flow smoothly into the rectangular notches 200 at the upper and lower edges.

[0035] As an advantage, there are two mounting holes 202, which are respectively connected to the glue injection cavity 208 on the upper side and the lower side. This facilitates the injection of glue and the upward and downward flow of the fixed glue. After the glue injection is completed, the lock core can be installed and fixed.

[0036] Preferably, the upper glue injection cavity 208 is connected to the upper glue diffusion cavity 209, and the lower glue injection cavity 208 is connected to the lower glue diffusion cavity 209. This facilitates draining the glue in the upper glue injection cavity 208 into the upper glue diffusion cavity 209, and draining the glue in the lower glue injection cavity 208 into the lower glue diffusion cavity 209.

[0037] Preferably, the glue injection cavity 208 is narrow in the middle and gradually increases in width from the middle to the sides. After the glue enters the middle of the glue injection cavity 208, the glue in the middle quickly flows into the wide areas on both sides due to the narrow middle, and the glue in the middle of the glue injection cavity 208 can continue to enter.

[0038] The above is a detailed introduction to the titles provided by the utility model. Specific examples are used in this article to illustrate the principles and implementation methods of the utility model. The description of the above embodiments is only used to help understand the utility model and its core ideas. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the utility model can also be improved and modified. These improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. Molded door frame structure, including stacked and cold-pressed wooden upper door panel, middle door panel, and wooden lower door panel, characterized by: The middle door panel comprises a rectangular metal frame and a wooden middle panel body surrounded and fixed by the rectangular metal frame. The rectangular metal frame is provided with an installation groove for installing the lock, and the installation groove is provided with an installation hole.

2. The molded door frame structure according to claim 1, characterized in that: The rectangular metal frame includes an upper frame, a left frame, a lower frame, and a right frame which are connected in sequence; the length of the right frame is equal to the sum of the widths of the upper frame, the lower frame, and the middle plate.

3. The molded door frame structure according to claim 2, characterized in that: Rectangular notches are provided on the upper and lower edges of the right ends of the upper frame body, the lower frame body and the middle plate body, and the rectangular notches on the upper and lower edges are connected into a straight line.

4. The molded door frame structure according to claim 3, characterized in that: The mounting groove is arranged on the right side wall of the right frame body, and the mounting hole is arranged on the bottom of the mounting groove.

5. The molded door frame structure according to claim 4, characterized in that: A glue injection cavity and a glue diffusion cavity are provided inside the right frame from right to left, and a glue hole is provided in the middle of the glue injection cavity and the glue diffusion cavity to connect the two; the glue injection cavity is connected to the mounting hole, and glue diffusion holes are provided above and below the left end of the glue diffusion cavity.

6. The molded door frame structure according to claim 5, characterized in that: The glue diffusion hole and the rectangular gap are connected. After the glue is injected into the installation hole, it flows into the glue injection cavity, enters the glue diffusion cavity through the glue hole from the glue injection cavity, and then flows out from the glue diffusion hole into the upper and lower rectangular gaps after entering the glue diffusion cavity. After filling the rectangular gaps, it overflows outside the rectangular gaps.

7. The molded door frame structure according to claim 5, characterized in that: A transverse partition is arranged between the glue injection cavity and the glue diffusion cavity to divide the glue injection cavity and the glue diffusion cavity into two.

8. The molded door frame structure according to claim 7, characterized in that: There are two mounting holes, which are connected to the glue injection cavity on the upper side and the lower side respectively.

9. The molded door frame structure according to claim 8, characterized in that: The glue injection cavity on the upper side is communicated with the glue diffusion cavity on the upper side, and the glue injection cavity on the lower side is communicated with the glue diffusion cavity on the lower side.

10. The molded door frame structure according to claim 5, characterized in that: The injection cavity is narrow in the middle, and its width gradually increases from the middle to both sides.