Wood-plastic door with fire resistance

Abstract

The utility model discloses a wood-plastic door with fire resistance, which belongs to the technical field of wood-plastic doors and is characterized in that a mounting cavity is formed in the middle of each of a first door frame and a second door frame, and a composite door plate is mounted in each mounting cavity; the first door frame and the second door frame are mutually locked through an anti-disengaging nut, multiple sets of arc-shaped inserting grooves are formed in the outer side of the threaded ring, arc-shaped extrusion cavities are formed in the inner sides of the arc-shaped inserting grooves, locking cavities penetrating through the threaded ring are formed in the inner sides of the arc-shaped extrusion cavities, and locking pieces are slidably installed in the locking cavities. A locking ring is movably installed on the outer side of the threaded ring, and a plurality of sets of locking arc plates are arranged at the bottom of the locking ring. A plurality of sets of mounting holes are formed in the arc-shaped extrusion cavity, and the extrusion part is connected with the outer side of the reset spring. According to the utility model, the first door frame and the second door frame can be quickly assembled under the matching of the positioning columns and the positioning holes, and can be tightly fixed under the action of the anti-drop nuts. And under the locking of the cladding plates on the two sides, the stability of the wood-plastic door with the fire resistance can be further improved.

Description

Technical Field

[0001] This utility model relates to the field of wood-plastic door technology, specifically a wood-plastic door with fire-resistant properties. Background Technology

[0002] Fire-resistant and soundproof doors and windows refer to aluminum alloy doors and windows with excellent thermal insulation properties, made by mechanically connecting the indoor and outdoor aluminum alloy profiles with reinforced nylon thermal insulation strips with low thermal transfer coefficients. This is combined with insulated glass and optimized sealing measures. With rapid economic development and accelerated urbanization, more and more high-rise buildings are rising, and many fire-resistant applications require wood-plastic composite doors with fire-resistant and heat-insulating functions.

[0003] Patent application CN222010034U discloses a fire-resistant and heat-insulating steel fire door, including a fire door frame. The fire door frame has two symmetrically distributed fire-resistant hinges on its exterior. Both fire-resistant hinges are enclosed in a single fire-resistant steel shell. The fire-resistant steel shell contains a fire-resistant cooling component and a first filter component. A partition is fixedly connected inside the fire-resistant steel shell. A sprinkler component is located on one side of the partition, and a second filter component is located on the other side. The fire-resistant plate provides fire protection, and the cooling plate reduces the temperature of the fire-resistant steel shell. This structure filters toxic and harmful gases produced during a fire, preventing them from entering the room and being inhaled by users, thus avoiding harm to their health and greatly facilitating user convenience.

[0004] However, the fire doors disclosed above have a complicated installation process that is time-consuming and labor-intensive. Furthermore, after a fire occurs and the doors are exposed to high temperatures for an extended period of time, the bolts and the door body will deform, causing them to loosen and allowing the fire to spread. Utility Model Content

[0005] The purpose of this utility model is to provide a fire-resistant wood-plastic composite door to solve the problems of cumbersome and time-consuming installation process of existing fire doors, and the deformation of bolts and door body after fire and prolonged high temperature baking, which causes loosening and spread of fire.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: a fire-resistant wood-plastic door, comprising a first door frame and a second door frame spliced ​​together, wherein an installation cavity is provided in the middle of the first door frame and the second door frame, and a composite door panel is installed in the installation cavity; the first door frame and the second door frame are locked together by an anti-loosening nut, wherein the anti-loosening nut includes a threaded ring, wherein multiple sets of arc-shaped slots are provided on the outer side of the threaded ring, an arc-shaped compression cavity is provided on the inner side of the arc-shaped slots, and a locking cavity penetrating the threaded ring is provided on the inner side of the arc-shaped compression cavity, wherein a locking member is slidably installed in the locking cavity; a locking ring is movably installed on the outer side of the threaded ring, wherein multiple sets of locking arc plates are provided at the bottom of the locking ring, the locking arc plates are movably disposed in the arc-shaped compression cavity and compress and lock the locking member; the locking member includes a locking part and a compression part, wherein multiple sets of installation holes are provided inside the arc-shaped compression cavity, wherein a return spring is provided inside the installation hole, and the compression part is connected to the outer side of the return spring.

[0007] As a further improvement of this utility model, the top of the locking ring is provided with multiple sets of toggle blocks.

[0008] As a further embodiment of this utility model: multiple sets of positioning posts are provided on the inner side of the first door frame, and multiple sets of positioning holes are provided on the inner side of the second door frame; sliding grooves are provided on both sides of the first door frame and the second door frame, and a covering plate for locking the first door frame and the second door frame is installed between the sliding grooves, and the covering plate includes a slide rail that cooperates with the sliding groove.

[0009] As a further improvement of this utility model: the composite door panel includes steel sheets on both sides, and a fire-resistant layer and a flame-retardant layer are provided between the steel sheets.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] This invention allows for the rapid assembly of the first and second door frames through the cooperation of the positioning posts and positioning holes, and they can be firmly fixed by the anti-loosening nuts. The locking of the side covering plates further enhances the stability of the first and second door frames. During installation, the locking ring compresses the locking component, causing the compression part to slide inward and lock the threads on the screw, preventing the threaded ring from loosening after prolonged use. This design improves the stability of the fire-resistant wood-plastic door. Attached Figure Description

[0012] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a three-dimensional structural diagram of the first door frame in this utility model;

[0015] Figure 3 This is a three-dimensional structural diagram of the second door frame in this utility model;

[0016] Figure 4 This is a three-dimensional structural diagram of the composite door panel in this utility model;

[0017] Figure 5 This is a three-dimensional structural diagram of the threaded ring in this utility model;

[0018] Figure 6 This is a cross-sectional view of the threaded ring in this utility model;

[0019] Figure 7 This is a three-dimensional structural diagram of the locking ring in this utility model;

[0020] Figure 8 This is a three-dimensional structural diagram of the locking component in this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. First door frame; 2. Second door frame; 3. Positioning post; 4. Positioning hole; 5. Mounting cavity; 6. Composite door panel; 7. Steel sheet; 8. Fire-resistant layer; 9. Flame-retardant layer; 10. Anti-loosening nut; 1001. Threaded ring; 1002. Arc-shaped slot; 1003. Arc-shaped extrusion cavity; 1004. Locking cavity; 1005. Locking element; 1006. Locking part; 1007. Extrusion part; 1008. Mounting hole; 1009. Return spring; 1010. Locking ring; 1011. Locking arc plate; 1012. Actuating block; 11. Slide groove; 12. Covering plate; 13. Slide rail. Detailed Implementation

[0023] The following will be combined with the appendix Figures 1 to 8 The technical solution of this utility model has been clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] This utility model provides an improved wood-plastic composite door with fire-resistant properties, such as... Figures 1-8As shown, the structure includes a first door frame 1 and a second door frame 2 that are spliced ​​together. A mounting cavity 5 is formed in the middle of the first door frame 1 and the second door frame 2, and a composite door panel 6 is installed within the mounting cavity 5. The first door frame 1 and the second door frame 2 are locked together by an anti-loosening nut 10. The anti-loosening nut 10 includes a threaded ring 1001. Multiple sets of arc-shaped slots 1002 are formed on the outer side of the threaded ring 1001. An arc-shaped compression cavity 1003 is formed on the inner side of the arc-shaped slots 1002. A locking cavity 1004, penetrating the threaded ring 1001, is formed on the inner side of the arc-shaped compression cavity 1003. The locking cavity 1004 slides within the locking cavity 1004. A locking element 1005 is installed; a locking ring 1010 is movably installed on the outer side of the threaded ring 1001, and multiple sets of locking arc plates 1011 are provided at the bottom of the locking ring 1010. The locking arc plates 1011 are movably disposed in the arc-shaped extrusion cavity 1003 and extrude and lock the locking element 1005; the locking element 1005 includes a locking part 1006 and an extrusion part 1007. Multiple sets of mounting holes 1008 are opened inside the arc-shaped extrusion cavity 1003. A return spring 1009 is provided inside the mounting hole 1008, and the extrusion part 1007 is connected to the outer side of the return spring 1009.

[0025] In this embodiment: With the cooperation of the positioning post 3 and the positioning hole 4, the first door frame 1 and the second door frame 2 can be quickly assembled, and they can be tightly fixed by the anti-loosening nut 10. First, the threaded ring 1001 is installed on the bolt. When installing the locking ring 1010, the locking arc plate 1011 is first inserted into the arc-shaped slot 1002, and then the locking ring 1010 is rotated clockwise. When the locking arc plate 1011 presses against the pressing part 1007, the locking member 1005 slides inward along the locking cavity 1004 and locks the thread on the bolt. When the whole assembly needs to be disassembled, the locking ring 1010 is rotated counterclockwise and the locking arc plate 1011 is disengaged from the pressing part 1007. At this time, under the action of the return spring 1009, the locking member 1005 automatically pops outward, and the locking part 1006 is disengaged from the bolt and unlocked.

[0026] See appendix Figure 5 -Appendix Figure 8 The top of the locking ring 1010 is provided with multiple sets of toggle blocks 1012.

[0027] In this embodiment: To facilitate the rotation of the locking ring 1010, a toggle block 1012 structure is designed.

[0028] See appendix Figure 1 -Appendix Figure 3The inner side of the first door frame 1 is provided with multiple sets of positioning posts 3, and the inner side of the second door frame 2 is provided with multiple sets of positioning holes 4; the first door frame 1 and the second door frame 2 are provided with sliding grooves 11 on both sides, and a covering plate 12 for locking the first door frame 1 and the second door frame 2 is installed between the sliding grooves 11. The covering plate 12 includes a slide rail 13 that cooperates with the sliding groove 11.

[0029] In this embodiment: During installation, the positioning post 3 and positioning hole 4 can quickly assemble the first door frame 1 and the second door frame 2. With the cooperation of the slide rail 13 and slide groove 11, the covering plate 12 can further fix and cover the first door frame 1 and the second door frame 2 on the front and rear sides.

[0030] See appendix Figure 4 The composite door panel 6 includes steel sheets 7 on both sides, and a fire-resistant layer 8 and a flame-retardant layer 9 are provided between the steel sheets 7.

[0031] In this embodiment: when a fire occurs, the steel sheet 7, the fire-resistant layer 8, and the flame-retardant layer 9 work together to block the high-temperature radiation, preventing the high-temperature radiation from reaching the other side of the door.

[0032] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and inventive features disclosed herein.

Claims

1. A wood-plastic door with fire resistance, characterized in that: The utility model provides a composite door frame, including mutually spliced first door frame (1) and second door frame (2), the middle part of first door frame (1) and second door frame (2) is equipped with installation cavity (5), and the installation cavity (5) is installed with composite door panel (6);First door frame (1) and second door frame (2) are locked each other through anti -drop nut (10), and the anti -drop nut (10) includes threaded ring (1001), a plurality of groups of arc -shaped slot (1002) are equipped on the outside of threaded ring (1001), arc -shaped extrusion cavity (1003) is equipped on the inside of arc -shaped slot (1002), locking chamber (1004) is equipped in the inside of arc -shaped extrusion cavity (1003) and penetrates threaded ring (1001), locking piece (1005) is slidably installed in locking chamber (1004);Locking ring (1010) is movably installed on the outside of threaded ring (1001), and the bottom of locking ring (1010) is provided with a plurality of locking arc plates (1011), the locking arc plate (1011) is movably arranged in arc -shaped extrusion cavity (1003) and extrusion locking locking piece (1005);Locking piece (1005) includes locking portion (1006) and extrusion portion (1007), a plurality of installation holes (1008) are equipped in the inside of arc -shaped extrusion cavity (1003), reset spring (1009) is arranged in the inside of installation hole (1008), and extrusion portion (1007) is connected with the outside of reset spring (1009).

2. The wood-plastic door with fire resistance performance according to claim 1, characterized in that: The top of locking ring (1010) is provided with a plurality of groups of knob (1012).

3. The wood-plastic door with fire resistance performance according to claim 1, characterized in that: The inside of first door frame (1) is provided with a plurality of groups of positioning column (3), and the inside of second door frame (2) is equipped with a plurality of groups of positioning hole (4);Both sides of first door frame (1) and second door frame (2) are equipped with sliding groove (11), and the sliding groove (11) is installed with the cladding plate (12) for locking first door frame (1) and second door frame (2), and the cladding plate (12) includes the slide rail (13) matched with the sliding groove (11).

4. The wood-plastic door with fire resistance performance according to claim 1, characterized in that: The composite door panel (6) includes steel skin (7) on both sides, and the steel skin (7) is further provided with fire -resistant layer (8) and fire -retardant layer (9).

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