Auxiliary fireproof mechanism for wooden door

By designing fireproof layers and filling grooves with solid fireproof materials in the inner core and surface layers of wooden doors, combined with locking strips and frame structures, the problems of insufficient fire resistance and color difference in traditional wooden doors are solved, achieving a more efficient fireproof effect and color consistency.

CN224260183UActive Publication Date: 2026-05-19ZHEJIANG SOFT HOME DOOR
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG SOFT HOME DOOR
Filing Date
2025-04-24
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Traditional wooden doors rely solely on spraying fire-retardant paint, which is insufficient to effectively improve fire resistance and can easily lead to color differences, affecting the consistency of product color.

Method used

It adopts an inner core layer and fireproof layer structure. The inner core layer is made of pressed laminate and fireproof layer through solid wood strips. The fireproof surface layer is fixedly connected to both sides of the inner core layer. The groove is filled with solid fireproof material and fireproof paint is sprayed on the surface layer. Combined with locking strips and frame design, the fireproof effect is enhanced and the paint color is uniformly sprayed.

Benefits of technology

It improves the fire resistance of wooden doors, reduces color differences, and achieves effective protection of wooden doors in fire situations. It also allows for flexible adjustment of the distribution of fire-resistant materials according to the pattern design.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an auxiliary fireproof mechanism for a wooden door, and relates to the technical field of wooden door fire prevention. The inner core layer comprises a press-fit laminate and fireproof laminates, the press-fit laminate and the fireproof laminates are formed by bonding solid wood strips in a press-fit mode, the fireproof laminates are bonded to the two sides of the press-fit laminate in a press-fit mode, the fireproof face layers are fixedly connected to the front side and the rear side of the inner core layer, and the frames are bonded to the left side and the right side of the inner core layer in a buckled mode. The upper side and the lower side of the inner core layer are buckled and bonded with edge strip plates; the outer side of the fireproof surface layer is laminated and bonded with a surface layer plate; and a clamping and locking strip is spliced and bonded in the frame. If a fire occurs, the solid fireproof material in the groove can reinforce the fireproof performance of the wooden door, the shape of the groove can be flexibly designed according to the pattern design of the wooden door, each door can be used for each purpose, the part, with relatively weak fireproof performance, of the wooden door is reinforced and assisted in fire prevention, and the problem that the fireproof performance of a traditional wooden door only depends on a layer of fireproof paint, and the fireproof performance is poor is solved. And the fireproof performance of the wooden door is difficult to improve.
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Description

Technical Field

[0001] This utility model relates to the field of fireproofing technology for wooden doors, and in particular to an auxiliary fireproofing mechanism for wooden doors. Background Technology

[0002] When producing wooden doors for home use, manufacturers often use solid wood composite painted doors as their main product. However, due to fire safety requirements, wooden doors need to have a certain level of fire resistance. Traditionally, fire resistance is achieved by spraying a layer of fire-retardant paint. However, relying solely on a layer of fire-retardant paint is insufficient to improve the fire resistance of the wooden door. Furthermore, if the fire-retardant paint is applied before the wood grain veneer is bonded to the solid wood composite door, the inconsistent texture and color of the veneer can lead to color differences during painting, resulting in inconsistent product color. Summary of the Invention

[0003] This disclosure relates to an auxiliary fireproofing mechanism for wooden doors, in which solid fireproofing material inside the groove can enhance the fireproofing performance of the wooden door in the event of a fire.

[0004] In a first aspect, this disclosure provides an auxiliary fireproof mechanism for wooden doors, specifically comprising: an inner core layer; the inner core layer includes a pressed layer and a fireproof layer, the pressed layer and the fireproof layer being formed by pressing together solid wood strips, the fireproof layer being pressed and bonded to both sides of the pressed layer, a fireproof surface layer being fixedly connected to the front and rear sides of the inner core layer, a frame being snapped and bonded to the left and right sides of the inner core layer, and edge strips being snapped and bonded to the top and bottom sides of the inner core layer; a surface layer being pressed and bonded to the outer side of the fireproof surface layer; and a locking strip being inserted and bonded to the inside of the frame.

[0005] In at least some embodiments, a plug-in plate is fixedly connected to the edge strip plate, the plug-in plate has a locking hole inside, a snap-fit ​​plate is fixedly connected to the edge strip plate, the snap-fit ​​plate snaps into the rectangular groove formed by the first snap-fit ​​groove and the second snap-fit ​​groove, and a snap-fit ​​block is also fixedly connected to the edge strip plate, the snap-fit ​​block snaps into the slot.

[0006] In at least some embodiments, when the plug plate is inserted into the plug hole, the lock hole and the lock cavity are connected, and the locking strip is engaged with the inside of the lock cavity.

[0007] In at least some embodiments, the surface panel is formed by bonding and pressing solid wood strips together. The surface panel has slots on both the upper and lower sides of the end face opposite to the inner core layer, and the end face opposite to the inner core layer is sprayed with fire-retardant paint and colored paint from the inside out.

[0008] In at least some embodiments, an insert is fixedly connected to the end face of the frame near the inner core layer, and insertion holes are provided at the upper and lower ends of the frame. Locking holes are provided in the left and right directions of the insertion holes, and the outer end face of the locking holes is connected to the outer end face of the frame.

[0009] In at least some embodiments, the pressing layer has a first slot at both the upper and lower ends, and an inner slot is formed on the upper and lower sides and the left and right ends of the pressing layer. The inner slot is located inside the first slot. The opposing surfaces of the two fireproof layers have grooves filled with solid fireproof material. The left and right sides of the fireproof layers have first insertion holes. A locking strip is pressed onto one side of the opposite surface of the two fireproof layers. The upper and lower ends of the fireproof layers have a second slot, and the locking strip is engaged inside the inner slot.

[0010] This utility model provides an auxiliary fireproof mechanism for wooden doors, which has the following beneficial effects:

[0011] After installation, in the event of a fire, the solid fireproof material inside the groove can enhance the fire resistance of the wooden door. The shape of the groove can be flexibly designed according to the pattern of the wooden door, so that each door can be used for its own purpose. It can strengthen the relatively weak parts of the wooden door in terms of fire resistance and assist in fire prevention.

[0012] In addition, spraying fire-retardant paint on the surface of the board can further enhance the fire resistance and also unify the base color before the paint is applied, resulting in less color difference after the wooden door is made into a finished product. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0014] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the present invention.

[0015] In the attached diagram:

[0016] Figure 1 A schematic diagram of the assembled structure of this application is shown;

[0017] Figure 2 A schematic diagram of the unfolded structure of the frame and side strips of this application is shown;

[0018] Figure 3 A schematic diagram of the structure of the border of this application is shown;

[0019] Figure 4 This diagram shows the unfolded structure between the core layer and the surface layer of this application.

[0020] Figure 5 A schematic diagram of the structure of the spiral edge strip of this application is shown;

[0021] Figure 6 A schematic diagram of the structure of the core layer of this application is shown.

[0022] List of reference numerals

[0023] 1. Inner core layer; 11. Pressed layer; 1101. First slot; 1102. Inner slot; 12. Fireproof layer; 1201. Groove; 1202. First insertion hole; 1203. Locking strip; 1204. Second slot;

[0024] 2. Fireproof surface layer;

[0025] 3. Surface panel; 301, bayonet;

[0026] 4. Edge strip; 401. Plug-in plate; 4011. Lock hole; 402. Snap-in plate; 403. Locking block;

[0027] 5. Frame; 501. Insert strip; 502. Connecting hole; 5021. Lock hole;

[0028] 6. Locking bar. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] Example: Please refer to Figures 1 to 6 :

[0031] This utility model proposes an auxiliary fireproof mechanism for wooden doors, comprising: an inner core layer 1; the inner core layer 1 includes a pressed layer 11 and a fireproof layer 12, the pressed layer 11 and the fireproof layer 12 are respectively formed by pressing together solid wood strips, the fireproof layer 12 is pressed and bonded to both sides of the pressed layer 11, the front and rear sides of the inner core layer 1 are fixedly connected to the fireproof surface layer 2, the left and right sides of the inner core layer 1 are fastened and bonded to the frame 5, the upper and lower sides of the inner core layer 1 are fastened and bonded to the edge strip 4; the outer side of the fireproof surface layer 2 is pressed and bonded to the surface layer 3; the inside of the frame 5 is inserted and bonded to the locking strip 6.

[0032] In this embodiment of the disclosure, such as Figure 5As shown, a plug-in plate 401 is fixedly connected to the edge strip plate 4. The plug-in plate 401 has a locking hole 4011 inside. A snap-fit ​​plate 402 is fixedly connected to the edge strip plate 4. The snap-fit ​​plate 402 snaps into the rectangular groove formed by the first snap-fit ​​groove 1101 and the second snap-fit ​​groove 1204. A snap-fit ​​block 403 is also fixedly connected to the edge strip plate 4. The snap-fit ​​block 403 snaps into the slot 301. After the surface layer plate 3 is pressed and bonded to the front and rear sides of the fireproof surface layer 2, glue is applied to the plug-in plate 401, the edge strip plate 4 and the snap-fit ​​block 403 on the two edge strip plates 4, and they are inserted into the upper and lower ends of the surface layer plate 3. The edge strip plate 4 is inserted into the rectangular groove, completing the fixed connection between the edge strip plate 4 and the surface layer plate 3. The snap-fit ​​block 403 snaps into the slot 301, and the fixed connection is completed by glue.

[0033] In this embodiment of the disclosure, such as Figure 4 and Figure 6 As shown, the pressed layer 11 has first slots 1101 at both the top and bottom ends, and inner slots 1102 at the top and bottom sides and left and right ends. The inner slots 1102 are located inside the first slots 1101. Grooves 1201 are formed on the opposite surfaces of the two fireproof layers 12, and the grooves 1201 are filled with solid fireproof material. First insertion holes 1202 are formed on the left and right sides of the fireproof layers 12. A retaining strip 1203 is pressed onto one side of the opposite surface of the two fireproof layers 12. Second slots 1204 are formed at the top and bottom ends of the fireproof layers 12, and the retaining strip 1203 is engaged with the inner slots. Inside the groove 1102, the fireproof surface layer 2 can provide auxiliary fireproofing to the outer surface of the inner core layer 1. After the fireproof layer 12 is coated with glue, it is pressed onto the front and rear sides of the pressed layer 11. The clip 1203 is snapped into the inner groove 1102 and fixed with glue. The first clip 1101 and the second clip 1204 form a complete rectangular groove to cooperate with the edge strip 4 for edge sealing assembly. In case of fire, the solid fireproof material inside the groove 1201 can enhance the fireproof performance of the wooden door. The shape of the groove 1201 can be flexibly opened according to the pattern design of the wooden door to realize the different uses of each door.

[0034] In this embodiment of the disclosure, such as Figure 2 As shown, when the plug plate 401 is inserted into the plug hole 502, the lock hole 4011 is connected to the lock hole 5021, and the locking strip 6 is locked into the lock hole 5021. After the frame 5 and the side strip plate 4 are assembled, the locking strip 6 with glue is inserted into the lock hole 5021 connected to the lock hole 4011. The assembly is completed after the glue dries.

[0035] In this embodiment of the disclosure, such as Figure 4As shown, a strip 501 is fixedly connected to the end face of the frame 5 near the inner core layer 1. Insertion holes 502 are provided at the upper and lower ends of the frame 5. Locking holes 5021 are provided in the left and right directions of the insertion holes 502. The outer end face of the locking holes 5021 is connected to the outer end face of the frame 5. After the strip 501 is coated with glue, the strip 501 is inserted into the first insertion hole 1202. The frame 5 is fastened to the left and right sides of the inner core layer 1 and the surface plate 3. When the side strip plate 4 is fastened to the upper and lower ends of the frame 5, the insertion plate 401 is inserted into the insertion hole 502.

[0036] In this embodiment of the disclosure, such as Figure 4 As shown, the surface panel 3 is made by bonding and pressing solid wood strips together. The end face of the surface panel 3 opposite to the inner core layer 1 has slots 301 on both the upper and lower sides. The end face of the surface panel 3 opposite to the inner core layer 1 is sprayed with fire-retardant paint and colored paint from the inside to the outside. The surface panel 3 allows the wooden door to be outlined with patterns and shapes that meet the design or usage requirements. The slots 301 allow the surface panel 3 to be fixed in position by the edge strip 4. The fire-retardant paint spraying on the surface can further enhance the fire resistance.

[0037] The working principle of this embodiment is as follows: First, the shape of the groove 1201 is outlined according to the pattern design of the wooden door. The inside of the groove 1201 is filled with solid fireproof material. After the fireproof layer 12 is coated with glue, it is pressed onto the front and back sides of the pressed layer 11. The clip 1203 is snapped into the inside of the inner clip groove 1102 and fixed and bonded by glue. The fireproof surface layer 2 is first soaked in cationic solutions such as calcium and aluminum, and then soaked in anionic solutions such as phosphate and silicate to form a fireproof and insect-proof surface layer similar to ceramic. Then, the outer surface of the inner core layer 1 is fixedly connected to the fireproof surface layer 2. The pattern shape that meets the design requirements or usage requirements is outlined on the surface layer 3. The surface layer 3 is pressed and bonded to the front and back sides of the fireproof surface layer 2.

[0038] After applying glue to the insert 501, insert 501 is inserted into the first insertion hole 1202. The frame 5 is fastened to the left and right sides of the inner core layer 1 and the surface plate 3. Then, after applying glue to the insert plate 401, the side plate 4 and the locking block 403 on the two side plates 4, they are inserted into the upper and lower ends of the surface plate 3. The side plate 4 is inserted into the rectangular groove to complete the fixed connection between the side plate 4 and the surface plate 3. Finally, the locking strip 6 with glue is inserted into the lock hole 5021 that communicates with the lock hole 4011. After the glue dries, the assembly is completed.

[0039] The following points should be noted in this article:

[0040] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0041] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0042] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A wood door auxiliary fireproofing mechanism, comprising: The inner core layer (1) is characterized in that the inner core layer (1) includes a pressed layer (11) and a fireproof layer (12), the pressed layer (11) and the fireproof layer (12) are respectively pressed together by adhesive solid wood strips, the fireproof layer (12) is pressed and adhesive to both sides of the pressed layer (11), the fireproof surface layer (2) is fixedly connected to the front and rear sides of the inner core layer (1), the left and right sides of the inner core layer (1) are fastened and adhesive to the frame (5), the upper and lower sides of the inner core layer (1) are fastened and adhesive to the side strip (4); the outer side of the fireproof surface layer (2) is pressed and adhesive to the surface layer (3); the inside of the frame (5) is inserted and adhesive to the locking strip (6).

2. The auxiliary fireproof mechanism for wooden doors according to claim 1, characterized in that, The press-fit plate (11) has a first slot (1101) at both the top and bottom ends. The press-fit plate (11) has an inner slot (1102) at both the top and bottom sides and at both the left and right ends. The inner slot (1102) is located inside the first slot (1101). The opposite surfaces of the two fireproof plates (12) have grooves (1201). The grooves (1201) are filled with solid fireproof material. The fireproof plates (12) have first insertion holes (1202) at both the left and right sides. The two fireproof plates (12) have a locking strip (1203) pressed on one side of the opposite surface. The fireproof plates (12) have a second slot (1204) at both the top and bottom ends. The locking strip (1203) is engaged inside the inner slot (1102).

3. The auxiliary fireproof mechanism for wooden doors according to claim 2, characterized in that, The surface panel (3) is formed by bonding and pressing solid wood strips together. The surface panel (3) and the inner core layer (1) are provided with slots (301) on the upper and lower sides of the end face opposite to each other. The surface panel (3) and the inner core layer (1) are sprayed with fireproof paint and colored paint from the inside to the outside.

4. The auxiliary fireproof mechanism for wooden doors according to claim 3, characterized in that, A plug-in plate (401) is fixedly connected to the side strip plate (4). A lock hole (4011) is provided inside the plug-in plate (401). A snap-fit ​​plate (402) is fixedly connected to the side strip plate (4). The snap-fit ​​plate (402) snaps into the rectangular groove formed by the first snap-fit ​​groove (1101) and the second snap-fit ​​groove (1204). A snap-fit ​​block (403) is also fixedly connected to the side strip plate (4). The snap-fit ​​block (403) snaps into the slot (301).

5. The auxiliary fireproof mechanism for wooden doors according to claim 4, characterized in that, A strip (501) is fixedly connected to the end face of the frame (5) near the inner core layer (1). Insertion holes (502) are opened at the upper and lower ends of the frame (5). Locking holes (5021) are opened in the left and right directions of the insertion holes (502). The outer end face of the locking holes (5021) is connected to the outer end face of the frame (5).

6. The auxiliary fireproof mechanism for wooden doors according to claim 5, characterized in that, When the plug plate (401) is inserted into the plug hole (502), the lock hole (4011) is connected to the lock hole (5021), and the locking strip (6) is locked into the lock hole (5021).