Sound-proof fireproof door and manufacturing method thereof

Abstract

The invention relates to a sound-proof fireproof door and a manufacturing method thereof. The sound insulation fireproof door comprises a door frame and a door leaf, the door leaf comprises a bottom plate, two first safety plates, a keel frame and two sound insulation pads, the bottom plate comprises a keel frame and heat insulation cotton, and the heat insulation cotton is embedded into the keel frame; the two first safety plates are located on the two opposite faces of the bottom plate correspondingly, and the first safety plates are connected with the bottom plate. The keel frame surrounds the bottom plate and is connected with the bottom plate, and the keel frame is hinged to the door frame; the sound insulation pads are connected with the face, back on to the bottom plate, of the first sound insulation plate, and the bottom plate is located between the two sound insulation pads. According to the scheme, the fireproof and sound insulation effects can be achieved, the structure is simple, the cost is low, and the weight is light.

Description

Technical Field

[0001] This application relates to the technical field of fire doors, and particularly to sound-insulating fire doors and their manufacturing methods. Background Art

[0002] European standard sound-insulating fire doors are special door products that possess both fire prevention and sound insulation functions. Existing European standard sound-insulating fire doors are usually made of high-strength steel. The interior of the European standard sound-insulating fire doors is filled with non-combustible, fire-resistant, and heat-insulating materials, such as expanded perlite boards or centrifugal glass wool, etc. Rubber sealing strips are used to seal the door gaps to ensure that the sound-insulating fire doors have good sound insulation and fire prevention effects.

[0003] In related technologies, compared with ordinary doors, European standard sound-insulating fire doors have higher manufacturing costs and relatively expensive prices; and due to their special structures and sealing requirements, the installation process of European standard sound-insulating fire doors is relatively complex and requires professional technicians to operate to ensure the fire prevention and sound insulation performance of the doors; the accessories such as sound insulation strips of European standard sound-insulating fire doors are prone to aging or damage and need to be replaced regularly, increasing the maintenance cost; fire and sound insulation doors are usually heavy and require special fixing methods, which may pose higher requirements on the building structure. Summary of the Invention

[0004] To solve or partially solve the problems existing in related technologies, this application provides a sound-insulating fire door and its manufacturing method, which can achieve the effects of fire prevention and sound insulation, and has a simple structure, low cost, and light weight.

[0005] In the first aspect of this application, a sound-insulating fire door is provided, which includes a door frame and a door leaf; the door leaf includes a bottom plate, two first mounting plates, a keel frame, and two sound insulation pads. The bottom plate includes a keel frame and heat-insulating cotton, and the heat-insulating cotton is embedded in the keel frame; the two first mounting plates are respectively located on opposite sides of the bottom plate, and the first mounting plates are connected to the bottom plate; the keel frame surrounds the bottom plate and is connected to the bottom plate, and the keel frame is hinged to the door frame; the sound insulation pads are connected to the side of the first mounting plate facing away from the bottom plate, and the bottom plate is located between the two sound insulation pads.

[0006] Further, the door frame includes three frame edges, and the three frame edges enclose a U shape. The frame edge includes a bottom strip plate, a first door stop strip, and a second door stop strip. One side of the bottom strip plate is respectively connected to the keel frame and the first door stop strip, and the second door stop strip is connected to the side of the first door stop strip facing away from the bottom strip plate. The width of the first door stop strip is smaller than the width of the bottom strip plate, and the width of the second door stop strip is smaller than the width of the first door stop strip. One side edge of the bottom strip plate, one side edge of the first door stop strip, and one side edge of the second door stop strip are arranged in a stepped shape, and one side edge of the first door stop strip and one side edge of the second door stop strip form a double-opening structure.

[0007] Furthermore, the door frame includes a first protective rubber strip and a second protective rubber strip, the first protective rubber strip is connected to a side of the first door stop strip facing the door leaf, and the second protective rubber strip is connected to a side of the second door stop strip facing the door leaf.

[0008] Furthermore, the door frame includes a fireproof expansion strip, and a mounting groove is provided on a side of the bottom strip plate facing the door leaf, the fireproof expansion strip is embedded in the mounting groove, and the fireproof expansion strip and the first door stop strip are coplanar on the bottom strip plate.

[0009] Furthermore, a clearance groove is provided on one side of the door leaf, and the clearance groove matches the double-opening structure. When the door leaf closes the door frame, one end of the second door stop bar extends into the clearance groove.

[0010] Furthermore, the bottom strip includes a second safety board, a flame retardant board and two main plywoods, the flame retardant board is connected to one side of the second safety board, the flame retardant board and the second safety board are located between the two main plywoods, and the two main plywoods are respectively connected to one side of the flame retardant board and one side of the second safety board.

[0011] Furthermore, the first door stop strip includes a third safety plate and a first clamping plate, one side of the third safety plate is connected to one side of the first clamping plate, the second door stop strip includes a fourth safety plate and a second clamping plate, one side of the fourth safety plate is connected to one side of the second clamping plate; the third safety plate is connected to the bottom strip, and the third safety plate is connected to the first door stop strip.

[0012] Furthermore, the door leaf also includes two decorative panels, and the two decorative panels are respectively connected to a side of each sound insulation pad facing away from the base plate. On the other hand, the present application provides a method for manufacturing a soundproof fireproof door, which comprises the following steps: Fill the empty space of the keel frame with heat insulation cotton, so that the keel frame and the heat insulation cotton form a plate-like bottom plate; Glue two first security panels to two opposite sides of the bottom panel respectively, and press the first security panels and the bottom panel together to form a door core; Place the keel frame around the base plate and glue the keel frame to the side of the base plate, and press the base plate and the keel frame together; Stick two sound insulation pads on the opposite sides of the door core, and press the two sound insulation pads together on the door core; Assemble the keel frame and the door frame into one piece.

[0013] Furthermore, before the keel frame and the door frame are assembled into one, the method further includes: The bottom strip, the first door stop strip and the second door stop strip are sequentially glued together to form a double-opening structure, the bottom strip, the first door stop strip and the second door stop strip are pressed together to form a frame edge, and the three frame edges are fixed together in a U shape to form a door frame; a clearance groove is opened at the position of the door leaf corresponding to the double-opening structure.

[0014] The technical solution provided by the present application may include the following beneficial results: by embedding heat-insulating cotton in the keel frame, the door leaf can have a heat-insulating effect, and the first safety board is set on both sides of the keel to achieve the fire-resistant performance of the door leaf. The first safety board is lighter than steel and will not make the door leaf too heavy. The first safety board can ensure that the door leaf has sufficient strength. By setting the sound insulation pad on the first safety board, the door leaf has a good sound insulation effect, meeting the requirements of sound insulation, fire prevention and light weight of the door leaf. The overall cost of the door leaf is low and it is also convenient for workers to install.

[0015] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and other objects, features and advantages of the present application will become more apparent by describing in more detail exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0017] Figure 1 It is a structural schematic diagram of a soundproof fireproof door shown in an embodiment of the present application; Figure 2 1 is an exploded schematic diagram of a soundproof fireproof door shown in an embodiment of the present application; Figure 3 is a schematic diagram of the structure of the base plate shown in the embodiment of the present application; Figure 4 It is a structural schematic diagram of a door core shown in an embodiment of the present application; Figure 5 It is a schematic diagram of the pressing of the door core and the keel frame shown in the embodiment of the present application; Figure 6 This is a schematic diagram of the pressing of the door core and the sound insulation pad shown in the embodiment of the present application. ; Figure 7 is a schematic diagram of bonding of a decorative panel shown in an embodiment of the present application; Figure 8 is a schematic diagram of bonding of the first edge sealing shown in an embodiment of the present application; Figure 9 is a schematic diagram of the pressing of the bottom strip shown in the embodiment of the present application; Figure 10 is a schematic diagram of the pressing of the first door stopper shown in the embodiment of the present application; Figure 11 It is a pressing schematic diagram of the second door stop strip shown in the embodiment of the present application; Figure 12 It is a pressing schematic diagram of the frame edge shown in the embodiment of the present application; Figure 13 It is an adhesive bonding schematic diagram of the second edge seal shown in the embodiment of the present application; Figure 14 It is an exploded schematic diagram of the frame edge shown in the embodiment of the present application; Figure 15 It is an assembly schematic diagram of the door frame shown in the embodiment of the present application.

[0018] Reference numerals: door frame 1; bottom strip board 11; second mounting plate 111; flame retardant board 112; main splint 113; first door stop strip 12; third mounting plate 121; first splint 122; second door stop strip 13; fourth mounting plate 131; second splint 132; first protective rubber strip 14; second protective rubber strip 15; fireproof expansion strip 16; second edge seal strip 17; door leaf 2; bottom plate 21; keel frame 211; keel strip 2111; heat insulation cotton 212; first mounting plate 22; keel framework 23; composite keel 231; sound insulation pad 24; relief groove 25; decorative panel 26; first edge seal strip 27; lock wood 28. Detailed implementation manners

[0019] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0020] It should be understood that although the terms "first", "second", "third", etc. may be used in the present application to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0021] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0022] Unless otherwise clearly specified and defined, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0023] In the related art, compared with ordinary doors, the European standard soundproof and fireproof doors have a higher manufacturing cost and relatively expensive prices; and due to their special structure and sealing requirements, the installation process of European standard soundproof and fireproof doors is relatively complex and requires professional technical personnel to operate to ensure the fireproof and soundproof performance of the doors; the accessories such as the soundproof strips of European standard soundproof and fireproof doors are prone to aging or damage and need to be replaced regularly, increasing the maintenance cost; the fireproof and soundproof doors are usually heavy and require special fixing methods, which may put higher requirements on the building structure.

[0024] In view of the above problems, the embodiments of the present application provide a soundproof and fireproof door and its manufacturing method, which can achieve the effects of fireproofing and soundproofing, and have a simple structure, low cost and light weight.

[0025] The technical solutions of the embodiments of the present application will be described in detail below with reference to the drawings.

[0026] See Figures 1-3 , the soundproof and fireproof door includes a door frame 1 and a door leaf 2. The door leaf 2 is hinged to the door frame 1, and the door leaf 2 can rotate relative to the door frame 1 so that the door leaf 2 closes the door frame 1 or opens the doorway. The door leaf 2 includes a bottom plate 21, two first mounting plates 22, a keel frame 23 and two soundproof pads 24. The bottom plate 21 includes a keel frame 211 and heat insulation cotton 212. The keel frame 211 includes a plurality of keel strips 2111, and the plurality of keel strips 2111 are fixed together by splicing, gluing or pressing. A plurality of rectangular vacancies are formed in the middle of the keel frame 211; the heat insulation cotton 212 is embedded in the keel frame 211. Specifically, the keel frame 211 has eight vacancies, and the heat insulation cotton 212 is filled into the vacancies so that the heat insulation cotton 212 and the keel frame 211 form a plate-like structure; wherein the heat insulation cotton 212 can be glass wool.

[0027] See Figures 1-4 , two first safety plates 22 are respectively located on opposite sides of the bottom plate 21, the bottom plate 21 is sandwiched between the two first safety plates 22, and the plate surfaces of the first safety plates 22 are connected to the plate surface of the bottom plate 21. Preferably, the first safety plates 22 are adhered to the bottom plate 21 through fireproof glue, and the first safety plates 22 and the bottom plate 21 are pressed together by a high-frequency framing machine to form a plate-shaped door core; wherein the first safety plate 22 is a mixed curing structure of magnesium phosphate and a curing agent, or a cured structure of magnesium phosphate and a curing agent after foaming with a foaming agent. The material of the first safety plate 22 includes magnesium phosphate, a foaming agent, and a curing agent. Among them, calculated by weight, magnesium phosphate is 35 to 65 parts. The first safety plate 22 and the keel frame 211 are made of the same material, and the density of the first safety plate 22 and the density of the keel frame 211 may be the same or different.

[0028] See Figures 1-5 , the keel frame 23 is formed by surrounding four long strip-shaped composite keels 231. The composite keel 231 is composed of a single-layer laminated wood and a magnesium oxychloride board. The keel frame 23 is in a rectangular frame shape. The keel frame 23 surrounds the outside of the bottom plate 21 and is connected to the bottom plate 21. Specifically, the keel frame 23 can be adhered to the bottom plate 21 through fireproof glue and then pressed together with the bottom plate 21 by a high-frequency framing machine; the keel frame 23 is hinged to the door frame 1. Specifically, the keel frame 23 can be connected to the door frame 1 through hinges. The sound insulation pad 24 is made of sound insulation cotton. The sound insulation pad 24 is in a plate shape. The sound insulation pad 24 is connected to the side of the first safety plate 22 facing away from the bottom plate 21. The bottom plate 21 is located between the two sound insulation pads 24. The sound insulation pad 24 can play an effect of blocking sound transmission. Preferably, the plate surface of the sound insulation pad 24 can be adhered to the plate surface of the door core through fireproof glue, and then the sound insulation pad 24 and the door core are pressed together by a high-frequency framing machine.

[0029] In this application, by embedding the heat insulation cotton 212 in the keel frame 211, the door leaf 2 can play a heat insulation effect. The first safety plate 22 is arranged on both sides of the keel to achieve the fire resistance performance of the door leaf 2. Moreover, the first safety plate 22 is relatively light in weight compared to steel, and will not make the door leaf 2 too heavy. And the first safety plate 22 can ensure that the door leaf 2 has sufficient strength. By arranging the sound insulation pad 24 on the first safety plate 22, the door leaf 2 has a good sound insulation effect, meeting the requirements of sound insulation, fire prevention, and low weight of the door leaf 2. And the overall cost of the door leaf 2 is low, and it is also convenient for workers to install.

[0030] See Figure 1 and Figure 15, the door frame 1 includes three frame edges that form a U shape. One of them is a shorter frame edge, and the other beam body is a longer frame edge. The shorter frame edge is located at the top of the door frame 1. The frame edge includes a bottom strip 11, a first door stop strip 12, and a second door stop strip 13. One side of the bottom strip 11 is connected to the keel frame 23 and the first door stop strip 12 respectively. The second door stop strip 13 is connected to the side of the first door stop strip 12 facing away from the bottom strip 11. Specifically, the bottom strip 11 is adhered to the first door stop strip 12 with fireproof glue, and the first door stop strip 12 is adhered to the second door stop strip 13 with fireproof glue. Moreover, the bottom strip 11, the first door stop strip 12, and the second door stop strip 13 are pressed together by a high-frequency frame assembly machine. The width of the first door stop strip 12 is smaller than that of the bottom strip 11, and the width of the second door stop strip 13 is smaller than that of the first door stop strip 12. One side edge of the bottom strip 11, one side edge of the first door stop strip 12, and one side edge of the second door stop strip 13 are aligned. The other side edges of the bottom strip 11, the first door stop strip 12, and the second door stop strip 13 are arranged in a stepped manner. One side edge of the first door stop strip 12 and one side edge of the second door stop strip 13 form a double-opening structure, where the double-opening structure faces the middle of the door frame 1. Here, the side edges of the bottom strip 11 are the two opposite sides in the length direction and the two opposite sides in the width direction of the bottom strip 11. The side edges of the first door stop strip 12 are the two opposite sides in the length direction and the two opposite sides in the width direction of the first door stop strip 12. The side edges of the second door stop strip 13 are the two opposite sides in the length direction and the two opposite sides in the width direction of the second door stop strip 13. By forming a double-opening structure in the door frame 1, after the door leaf 2 is closed on the door frame 1, the double-opening structure can increase the tightness between the door leaf 2 and the door frame 1, thereby improving the sound insulation effect of the door leaf 2 and the door frame 1 and enhancing the fireproof performance.

[0031] See Figure 1 and Figure 14 , a relief groove 25 is provided on one side edge of the door leaf 2. The relief groove 25 is matched with the double-opening structure. When the door leaf 2 is closed on the door frame 1, one end of the second door stop strip 13 extends into the relief groove 25, thereby improving the tightness of the soundproof and fireproof door after the door leaf 2 is closed on the door frame 1, making it more difficult for sound to pass through the gap between the door leaf 2 and the door frame 1, improving the sound insulation effect of the soundproof and fireproof door, and enhancing the fireproof effect of the soundproof and fireproof door.

[0032] See Figure 1In some embodiments, the door frame 1 includes a first protective rubber strip 14 and a second protective rubber strip 15, the first protective rubber strip 14 is connected to the side of the first door stop strip 12 facing the door leaf 2, and the second protective rubber strip 15 is connected to the side of the second door stop strip 13 facing the door leaf 2, wherein the cross-section of the first protective rubber strip 14 is V-shaped, and the cross-section of the second protective rubber strip 15 is V-shaped. When the door leaf 2 closes the door frame 1, the door leaf 2 can abut against the first protective rubber strip 14 and the second protective rubber strip 15. Specifically, the bottom of the groove 25 abuts against the first protective rubber strip 14, and the outer surface of the door leaf 2 abuts against the second protective rubber strip 15. The first protective rubber strip 14 and the second protective rubber strip 15 can cache the door leaf 2 when the door leaf 2 closes the door frame 1 to prevent the door leaf 2 from hitting the door frame 1, and the first protective rubber strip 14 and the second protective rubber strip 15 can improve the airtightness of the door leaf 2 and the door frame 1, and the first protective rubber strip 14 and the second protective rubber strip 15 can also have a sound insulation effect.

[0033] See also Figure 1 In some embodiments, the door frame 1 includes a fireproof expansion strip 16, and a mounting groove is provided on the side of the bottom strip 11 facing the door leaf 2, and the fireproof expansion strip 16 is embedded in the mounting groove. The fireproof expansion strip 16 and the first door stop strip 12 are coplanar on the bottom strip 11. When encountering flames, the fireproof expansion strip 16 can expand rapidly to block the gap between the door leaf 2 and the door frame 1, thereby preventing the flame from passing through the door leaf 2 and spreading, thereby improving the fireproof performance and safety of the soundproof fireproof door.

[0034] See also Figure 1 and Figure 9 In some embodiments, the bottom strip 11 includes a second safety board 111, a flame retardant board 112 and two main plywoods 113. The flame retardant board 112 is connected to one side of the second safety board 111. The flame retardant board 112 and the second safety board 111 are located between the two main plywoods 113. The flame retardant board 112 can reduce the burning speed of the flame. The two main plywoods 113 are respectively connected to one side of the flame retardant board 112 and one side of the second safety board 111, wherein the flame retardant board 112 is on the side of the second safety board 111 close to the door leaf 2; the material of the second safety board 111 is the same as that of the first safety board 22, and the bottom strip 11 mainly plays the role of structural strength support and fire prevention. The second safety board 111 can be respectively bonded to the flame retardant board 112 and the main plywood 113 by fireproof adhesive, and the flame retardant board 112 can be bonded to the main plywood 113 by fireproof adhesive, and then the second safety board 111, the flame retardant board 112 and the two plywood are pressed together by a high-frequency frame assembly machine.

[0035] See also Figures 9-11, in some embodiments, the first door stop bar 12 includes a third mounting plate 121 and a first clamping plate 122. One side of the third mounting plate 121 is connected to one side of the first clamping plate 122. The second door stop bar 13 includes a fourth mounting plate 131 and a second clamping plate 132. One side of the fourth mounting plate 131 is connected to one side of the second clamping plate 132. The third mounting plate 121 is connected to the bottom strip 11, and the third mounting plate 121 is connected to the first door stop bar 12. The material of the third mounting plate 121 is the same as that of the first mounting plate 22, and the third mounting plate 121 can play a role in structural strength support and fire prevention. The material of the fourth mounting plate 131 is the same as that of the first mounting plate 22, and the fourth mounting plate 131 can play a role in structural strength support and fire prevention. The third mounting plate 121 can be adhered to the first clamping plate 122 with fireproof glue, and then the third mounting plate 121 and the first clamping plate 122 are pressed together by a high-frequency framing machine. The fourth mounting plate 131 can be adhered to the second clamping plate 132 with fireproof glue, and then the fourth mounting plate 131 and the second clamping plate 132 are pressed together by a high-frequency framing machine.

[0036] See Figures 2-6 , the door leaf 2 further includes two decorative panels 26 and four first edge sealing strips 27. The two decorative panels 26 are respectively connected to the side of each sound insulation pad 24 facing away from the bottom plate 21. Among them, the decorative panel 26 can be adhered to the sound insulation pad 24 with fireproof glue, and then the decorative panel 26 and the sound insulation pad 24 are pressed together by a high-frequency framing machine. The first edge sealing strip 27 is pasted on the side of the keel frame 23 facing away from the bottom plate 21. The decorative panel 26 and the first edge sealing strip 27 can play a decorative role for the door leaf 2. The decorative panel 26 can also protect the door leaf 2 to prevent the door leaf 2 from being corroded. The first edge sealing strip 27 can also protect the keel frame 23 to prevent the keel frame 23 from being corroded.

[0037] Corresponding to the foregoing application function implementation device embodiments, the present application also provides a manufacturing method of a sound insulation and fireproof door and corresponding embodiments.

[0038] See Figures 1-8 , the manufacturing method of the sound insulation and fireproof door includes the following steps: S01. Fill the heat insulation cotton 212 in the vacancies of the keel frame 211 so that the keel frame 211 and the heat insulation cotton 212 form a plate-shaped bottom plate 21.

[0039] Among them, it is necessary to first cut out multiple keel strips 2111 from the raw materials, splice the multiple keel strips 2111 into a keel frame 211 according to the shape of the door leaf 2, form multiple vacancies in the keel frame 211, and then use the heat insulation cotton 212 to fill the vacancies. The thickness of the heat insulation cotton 212 can be greater than the thickness of the keel strip 2111 or equal to the thickness of the keel strip 2111.

[0040] S02. Stick two first mounting plates 22 to the opposite two sides of the bottom plate 21 respectively, press the first mounting plates 22 and the bottom plate 21 together so that the first mounting plates 22 and the bottom plate 21 form a door core.

[0041] Among them, apply fireproof glue to both surfaces of the bottom plate 21 in terms of its thickness, then stick two first mounting plates 22 to the two surfaces of the bottom plate 21 in terms of its thickness respectively. Then, press the bottom plate 21 and the two first mounting plates 22 together through a high-frequency frame assembling machine and wait for the fireproof glue to solidify, so that the bottom plate 21 and the two first mounting plates 22 are firmly fixed together and form a door core.

[0042] S03. Surround the bottom plate 21 with the keel frame 23 and stick the keel frame 23 to the side of the bottom plate 21, and press the bottom plate 21 and the keel frame 23 together.

[0043] Specifically, it is necessary to first apply fireproof glue to the four sides of the bottom plate 21, then surround the bottom plate 21 with four strip-shaped composite keels 231 to form the keel frame 23, and stick them to the sides of each bottom plate 21 through the fireproof glue. Then, press the bottom plate 21 and the composite keels 231 together through a high-frequency frame assembling machine and wait for the fireproof glue to solidify; the four sides of the bottom plate 21 are the two opposite sides in the length direction of the bottom plate 21 and the two opposite sides in the width direction. The keel frame 23 and the bottom plate 21 are tightly combined through the fireproof glue to avoid gaps between the bottom plate 21 and the keel frame 23. In case of a fire, there will be no risk of fire spreading between the bottom plate 21 and the keel frame 23. In addition, it is also necessary to open holes in the door core, insert the lock block 28 into the holes of the door core, and fix it through the fireproof glue.

[0044] S04. Stick two sound insulation pads 24 to the opposite two sides of the door core and press the two sound insulation pads 24 together on the door core.

[0045] Among them, it is necessary to first apply fireproof glue to the two opposite sides of the door core in terms of its thickness, then stick the sound insulation pads 24 to the door core, and then press the bottom door core and the sound insulation pads 24 together through a high-frequency frame assembling machine and wait for the fireproof glue to solidify. Prepare two decorative panels 26, then apply fireproof glue to the side of the two sound insulation pads 24 facing away from the door core, stick the two decorative panels 26 to the side of the two sound insulation pads 24 facing away from the door core respectively through the fireproof glue, and press the bottom door core, the sound insulation pads 24 and the decorative panels 26 together through a high-frequency frame assembling machine and wait for the fireproof glue to solidify. Prepare four edge strips, apply fireproof glue to the side of each of the four composite keels 231 facing away from the bottom plate 21, stick the edge strips to the side of the composite keels 231 facing away from the bottom plate 21 through the fireproof glue and wait for the fireproof glue to solidify, so that the edge strips are firmly fixed on the composite keels 231, and the door leaf 2 can be completed.

[0046] S05. Assemble the keel frame 23 and the door frame 1 into one body.

[0047] Refer to Figure 1 and Figures 9-15 , wherein the manufacturing process of the door frame 1 can be carried out simultaneously with that of the door leaf 2, or the door frame 1 can be manufactured before manufacturing the door leaf 2, or the door frame 1 can be manufactured after the door leaf 2 is manufactured. After the door frame 1 and the door leaf 2 are completed, the door frame 1 and the door leaf 2 are connected together through hinges, so that the door leaf 2 can rotate relative to the door frame 1.

[0048] By embedding the heat insulation cotton 212 in the keel frame 211, the door leaf 2 can achieve the heat insulation effect. The first safety board 22 is arranged on both sides of the keel to achieve the fire resistance performance of the door leaf 2. Moreover, the first safety board 22 is relatively light in weight compared with steel, and will not make the door leaf 2 too heavy. And the first safety board 22 can ensure that the door leaf 2 has sufficient strength. By arranging the sound insulation pad 24 on the first safety board 22, the door leaf 2 has a good sound insulation effect, meeting the requirements of sound insulation, fire prevention and small weight of the door leaf 2. And the overall cost of the door leaf 2 is low, and it is also convenient for workers to install.

[0049] In some embodiments, before assembling the keel frame 23 and the door frame 1 into one body, it is necessary to first manufacture the door frame 1. The manufacturing method of the door frame 1 includes the following steps: The bottom strip 11, the first door stop strip 12 and the second door stop strip 13 are adhesively connected together in sequence to form a double-opening structure. The bottom strip 11, the first door stop strip 12 and the second door stop strip 13 are pressed together to form a frame edge. The three frame edges are fixed together in a U shape to form the door frame 1; a relief groove 25 is opened at the position of the door leaf 2 corresponding to the double-opening structure.

[0050] During the production of the bottom strip 11, first prepare the second mounting plate 111, the fireproof board 112 and two main clamping plates 113. First, apply fireproof glue on the two opposite sides in the thickness direction of the second mounting plate 111, then attach the fireproof board 112 and one main clamping plate 113 to the two opposite sides in the thickness direction of the second mounting plate 111 respectively. Then apply fireproof glue on the side of the fireproof board 112 facing away from the second mounting plate 111, and attach the other main clamping plate 113 to the side of the fireproof board 112 facing away from the second mounting plate 111. Use a high-frequency framing machine to press the second mounting plate 111, the fireproof board 112 and the two main clamping plates 113 together, wait for the fireproof glue to solidify, and then cut according to the required width and length of the bottom strip 11, thus completing the bottom strip 11. During the production of the first door stop strip 12, first prepare the third mounting plate 121 and the first clamping plate 122. Apply fireproof glue on one side in the thickness direction of the third mounting plate 121, and attach the first clamping plate 122 to the third mounting plate 121 through the fireproof glue. Use a high-frequency framing machine to press the third mounting plate 121 and the first clamping plate 122 together, wait for the fireproof glue to solidify, and then cut according to the required width and length of the first door stop strip 12, thus completing the first door stop strip 12. During the production of the second door stop strip 13, first prepare the fourth mounting plate 131 and the second clamping plate 132. Apply fireproof glue on one side in the thickness direction of the fourth mounting plate 131, and attach the second clamping plate 132 to the fourth mounting plate 131 through the fireproof glue. Use a high-frequency framing machine to press the fourth mounting plate 131 and the second clamping plate 132 together, wait for the fireproof glue to solidify, and then cut according to the required width and length of the second door stop strip 13, thus completing the second door stop strip 13.

[0051] During the production of the frame edge, first apply fireproof glue on one side in the thickness direction of the second door stop strip 13, align the side of the second door stop strip 13 with one side of the first door stop strip 12 and attach the second door stop strip 13 to the first door stop strip 12 through the fireproof glue. Apply fireproof glue on the side of the first door stop strip 12 facing away from the second door stop strip 13, align the side of the first door stop strip 12, the side of the second door stop strip 13 with one side of the bottom strip 11 and attach the first door stop strip 12 to the bottom strip 11 through the fireproof glue. Use a high-frequency framing machine to press the bottom strip 11, the first door stop strip 12 and the second door stop strip 13 together, wait for the fireproof glue to solidify, and then attach the second sealing strip 17 to the sides of the bottom strip 11, the first door stop strip 12 and the second door stop strip 13 respectively, thus completing one frame edge with a double-opening structure. After completing the three frame edges, enclose the three frame edges in a U-shape for splicing and fixing to form the door frame 1. The door leaf 2 starts to have an avoidance groove at the position corresponding to the double-opening structure, so that after the door leaf 2 is closed on the door frame 1, the double-opening structure can be directly opposite to the avoidance groove, and one end of the second door stop strip 13 can extend into the avoidance groove, thereby improving the sealing performance between the door leaf 2 and the door frame 1.

[0052] The solution of the present application has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of the respective embodiments have their own emphases. For parts not described in detail in a certain embodiment, reference may be made to the relevant descriptions of other embodiments. Those skilled in the art should also be aware that the actions and modules involved in the specification are not necessarily essential to the present application. In addition, it can be understood that the steps in the method embodiments of the present application can be adjusted, combined, and deleted according to actual needs, and the modules in the device embodiments of the present application can be combined, divided, and deleted according to actual needs.

[0053] The various embodiments of the present application have been described above. The above description is exemplary and not exhaustive, and is also not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, the practical application, or the improvement of the technology in the market, or to enable other ordinary skill in the art in the technical field to understand the embodiments disclosed herein.

Claims

1. A sound-insulating and fire-proof door, characterized in that, include: Door frame; A door leaf, the door leaf comprising a base plate, two first safety plates, a keel frame and two sound insulation pads, the base plate comprising a keel frame and heat insulation cotton, the heat insulation cotton being embedded in the keel frame; the two first safety plates are respectively located on two opposite sides of the base plate, the first safety plate is connected to the base plate; the keel frame surrounds the base plate and is connected to the base plate, the keel frame is hinged to the door frame; the sound insulation pad is connected to a side of the first safety plate facing away from the base plate, and the base plate is located between the two sound insulation pads.

2. The sound-insulating and fire-proof door according to claim 1, wherein: The door frame includes three frame edges, which form a U-shape. The frame edges include a bottom strip, a first door stop strip and a second door stop strip. One side of the bottom strip is respectively connected to the keel frame and the first door stop strip, and the second door stop strip is connected to a side of the first door stop strip facing away from the bottom strip. The width of the first door stop strip is smaller than the width of the bottom strip, and the width of the second door stop strip is smaller than the width of the first door stop strip. One side edge of the bottom strip and the first door stop strip and one side edge of the second door stop strip are arranged in a step shape, and one side edge of the first door stop strip and one side edge of the second door stop strip form a double opening structure.

3. The sound-insulating and fire-proof door according to claim 2, wherein: The door frame includes a first protective rubber strip and a second protective rubber strip, wherein the first protective rubber strip is connected to a side of the first door stop strip facing the door leaf, and the second protective rubber strip is connected to a side of the second door stop strip facing the door leaf.

4. The sound-insulating and fire-proof door according to claim 2, wherein: The door frame includes a fireproof expansion strip, and a mounting groove is provided on a side of the bottom strip plate facing the door leaf. The fireproof expansion strip is embedded in the mounting groove, and the fireproof expansion strip and the first door stop strip are coplanar on the bottom strip plate.

5. The soundproof and fireproof door according to claim 2, wherein: A clearance groove is provided on one side of the door leaf, and the clearance groove matches the double-opening structure. When the door leaf is closed on the door frame, one end of the second door stop bar extends into the clearance groove.

6. The sound-insulating and fire-proof door according to claim 2, wherein: The bottom strip includes a second safety board, a flame retardant board and two main plywoods, the flame retardant board is connected to one side of the second safety board, the flame retardant board and the second safety board are located between the two main plywoods, and the two main plywoods are respectively connected to one side of the flame retardant board and one side of the second safety board.

7. The sound-insulating and fire-proof door according to claim 2, characterized in that: The first door stop strip includes a third safety plate and a first clamping plate, one side of the third safety plate is connected to one side of the first clamping plate, the second door stop strip includes a fourth safety plate and a second clamping plate, one side of the fourth safety plate is connected to one side of the second clamping plate; the third safety plate is connected to the bottom strip, and the third safety plate is connected to the first door stop strip.

8. The sound-insulating and fire-proof door according to claim 2, wherein: The door leaf further comprises two decorative panels, and the two decorative panels are respectively connected to a side of each sound insulation pad facing away from the bottom plate.

9. A manufacturing method of a sound-insulating and fire-proof door, characterized in that, The following steps are involved: Fill the empty space of the keel frame with heat insulation cotton, so that the keel frame and the heat insulation cotton form a plate-like bottom plate; Glue two first security panels to two opposite sides of the bottom panel respectively, and press the first security panels and the bottom panel together to form a door core; Place the keel frame around the base plate and glue the keel frame to the side of the base plate, and press the base plate and the keel frame together; Attach two sound insulation pads to the two opposite sides of the door core and press the two sound insulation pads together on the door core; Assemble the keel frame and the door frame into one body.

10. The manufacturing method of the sound-insulating and fire-proof door according to claim 9, characterized in that, Before assembling the keel frame and the door frame into one body, it further includes: Adhere the bottom strip, the first door stop strip and the second door stop strip together in sequence to form a double-opening structure, press the bottom strip, the first door stop strip and the second door stop strip together to form a frame edge, and fix the three frame edges together in a U shape to form a door frame; Open a relief groove at the position of the door leaf corresponding to the double-opening structure.

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