Modularized protective air-tight door adopting cold assembly and mounting method

Abstract

The invention discloses a modular protective air-tight door adopting cold assembly and an installation method, the protective air-tight door comprises a door frame, a door leaf, a locking mechanism and a hinge mechanism, the door frame is arranged in a wall, the door leaf is connected with the door frame through the hinge mechanism, and the locking mechanism is arranged on the door leaf and connected with the door frame. The door frame and the door leaf both adopt the main beams of the same specification as main materials, the manufacturing cost of the airtight protective door is effectively reduced, the main beams are connected through the connecting pieces, assembly of the door leaf and the door frame is achieved, the manufacturing efficiency of the airtight protective door is greatly improved, the main beams have high assembly efficiency through the structural design, and the assembly efficiency of the airtight protective door is greatly improved. And meanwhile, the sealing protective door further has high anti-load performance, so that the sealing protective door has protective performance, construction convenience and stability.

Description

Technical Field

[0001] The present invention relates to the technical field of protective airtight doors, and in particular to a modular protective airtight door using cold assembly and an installation method. Background Art

[0002] As an important part of civil air defense projects, protective sealed doors need to have a stable and safe protective effect. Therefore, heavy protective doors are generally used. However, lightweight sealed protective doors are now used in areas where existing civil air defense projects are being renovated or where protection requirements are low. They can meet the protection needs without requiring major improvements to the existing structure, and take into account protection, portability, and ease of construction. Conventional sealed protective doors are mostly prefabricated as a whole and then transported to the site for installation and construction. The construction generally requires a huge amount of work, and the manufacturing process of sealed protective doors is also relatively complicated, which leads to a long entire construction period. Although existing lightweight sealed protective doors also mostly use modular structures, they still cannot effectively take into account both protection and ease of construction. The present invention provides a modular protective sealed door and installation method that uses cold assembly to solve the above problems. Summary of the Invention

[0003] The present invention provides a modular protective airtight door and an installation method using cold assembly. The lightweight airtight protective door adopts a modular structure and is constructed by cold assembly, taking into account both protectiveness and construction convenience.

[0004] The technical solution adopted by the present invention to solve the above technical problems is: A modular protective airtight door using cold assembly, comprising a door frame, a door leaf, a locking mechanism and a hinge mechanism, wherein the door frame is arranged in a wall, the door leaf is connected to the door frame via the hinge mechanism, and the locking mechanism is arranged on the door leaf and connected to the door frame; The door leaf includes a frame, a filling block and a panel, the filling block is arranged in the frame, and the panel is arranged on the front and rear sides of the frame; the frame includes a main beam and a connecting piece, and the main beams are connected to each other through the connecting piece to form the frame.

[0005] Furthermore, the main beam is provided with a cavity and a connecting groove, the cavity is provided in the middle of the main beam, and the connecting groove is provided on the side of the main beam; The connecting piece includes a transverse plug-in block and a longitudinal plug-in block. The longitudinal plug-in blocks are arranged on both sides of the transverse plug-in block. The transverse plug-in block is arranged in the connecting groove of the main beam, and the longitudinal plug-in block is arranged in the cavity of the adjacent main beam to connect the two adjacent main beams together.

[0006] Furthermore, both the transverse insert block and the longitudinal insert block are provided with a fixing seat, and the fixing seat is connected to the main beam via a locking bolt.

[0007] Furthermore, the door frame includes a frame, a fixing rod and a sealing strip, the fixing rod is arranged on the frame and connects the frame to the wall, and the sealing strip is arranged on the front side of the frame.

[0008] Furthermore, the frame includes main beams and corner connectors, and the main beams of the frame are connected by the corner connectors to form a rectangular frame structure; The corner connector is provided in the main beam to connect adjacent main beams together, and the sealing strip is provided on the front side of the main beam; The inner end of the fixing rod is located in the wall, and the outer end passes through the main beam of the frame and is fixedly connected to the main beam.

[0009] Furthermore, the locking mechanism is arranged on the inner side of the door leaf, and the locking mechanism includes a locking head, a linkage rod and a handle assembly. The locking heads are arranged at intervals on the door leaf and are connected to the door frame for locking. The linkage rod is arranged between adjacent locking heads, and the handle assembly is arranged on one of the locking heads.

[0010] Furthermore, the locking head includes a locking box, a transmission gear, a locking rack and a linkage rack. The locking box is arranged on the door leaf, and the transmission gear, the locking rack and the linkage rack are arranged in the locking box. The locking rack and the linkage rack are both engaged with the transmission gear, and the linkage racks on adjacent locking heads are connected by a linkage connecting rod.

[0011] Furthermore, the handle assembly is fixedly connected to the transmission gear of the locking head, and the locking rack and the linkage rack are perpendicular to each other and staggered front to back.

[0012] Furthermore, the hinge mechanism includes a mounting seat, a hinge ear seat, a hinge ear and a mounting piece, the mounting seat is arranged on the door frame and connected to the wall, the hinge ear seat is arranged on the mounting seat, the hinge ear is arranged on the door leaf and connected to the hinge ear seat, and the hinge ear is connected to the door leaf through the mounting piece.

[0013] A method for installing a modular protective airtight door using cold assembly comprises the following steps: S1, component prefabrication: according to the size of the protective airtight door, the main beams of the door frame and door leaf are manufactured, and then the door frame and door leaf are assembled separately, and the locking mechanism is assembled at the same time; When assembling the door leaf, the main beams are connected to each other using connectors to form a skeleton, and then the filling blocks are placed in the skeleton. Finally, the panels are installed to complete the assembly of the door leaf. When assembling the door frame, use the corner connectors to connect the main beams to form a frame, and install the sealing strip on the front side of the frame to complete the assembly of the door frame; S2, door frame installation: first install the mounting base on the door frame, then anchor the door frame and mounting base to the wall through the fixing rod; S3, door leaf installation: first install the locking mechanism on the inner side of the door leaf, then install the hinge ear on the door leaf, install the hinge ear seat on the mounting seat, and then connect the assembled door leaf to the door frame through the hinge ear to complete the installation.

[0014] The beneficial effects of the present invention are as follows: The door frame and door leaf both use main beams of the same specifications as the main material, which effectively reduces the production cost of the enclosed protective door. The main beams are connected by connectors to realize the assembly of the door leaf and door frame, which greatly improves the production efficiency of the enclosed protective door. The main beams have a faster assembly efficiency through structural design and also have strong load resistance, so that the enclosed protective door takes into account protection, construction convenience and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front side of the installation state of the present invention; Figure 2 This is a schematic diagram of the rear side of the present invention in an installed state; Figure 3 It is a schematic diagram of the overall structure of the present invention; Figure 4 This is a schematic diagram of the overall structure of the door frame of the present invention; Figure 5 This is a schematic diagram of the connection state of the internal components of the door frame of the present invention; Figure 6 It is a schematic diagram of the framework structure of the present invention; Figure 7 This is a schematic structural diagram of the corner connector of the present invention; Figure 8 This is a schematic diagram of the internal structure of the door leaf of the present invention; Figure 9 This is a schematic diagram of the connection state of the main beam and the connecting member of the present invention; Figure 10 It is a schematic diagram of the main beam of the present invention; Figure 11 It is a schematic cross-sectional view of the main beam of the present invention; Figure 12 It is a schematic diagram of the structure of the connector of the present invention; Figure 13 It is a schematic diagram of the overall structure of the locking mechanism of the present invention; Figure 14 It is a schematic structural diagram of the locking box of the present invention; Figure 15 This is a schematic diagram of the hinge connection state of the present invention; Figure 16 Schematic diagram of the hinge structure of the present invention; Figure 17 This is a schematic diagram of the installation state of the mounting piece of the present invention.

[0016] Figure markings: 1. Door frame; 11. Frame; 111. Corner connector; 12. Fixing rod; 13. Sealing strip; 2. Door leaf; 21. Skeleton; 211. Main beam; 2111. Cavity; 2112. Connecting groove; 212. Connecting piece; 2121. Horizontal insert; 2122. Vertical insert; 2123. Fixing seat; 22. Panel; 3. Locking mechanism; 31. Locking head; 311. Locking box; 312. Transmission gear; 313. Locking rack; 314. Linking rack; 32. Linking connecting rod; 33. Handle assembly; 4. Hinge mechanism; 41. Mounting seat; 42. Hinge ear seat; 43. Hinge ear; 44. Mounting piece. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 cannot be understood as limiting the present invention.

[0019] like Figure 1 、 2 As shown in Figure 3, a modular protective airtight door using cold assembly includes a door frame 1, a door leaf 2, a locking mechanism 3 and a hinge mechanism 4. The door frame 1 is arranged in a wall, the door leaf 2 is connected to the door frame 1 through the hinge mechanism 4, and the locking mechanism 3 is arranged on the inner side of the door leaf 2 and connected to the door frame 1.

[0020] The specific embodiment of the present invention adopts a modular structure and a non-welding cold assembly method to realize the assembly of the door frame 1 and the door leaf 2, and the door frame and the door leaf use the main beam 211 of the same specification as the main component, which improves the versatility and reduces the cost, and improves the convenience of installation and construction. At the same time, the main beam 211 is used as the main protective component, which can effectively meet the protection requirements.

[0021] like Figure 8 、 9As shown in Figures 10, 11 and 12, the door leaf 2 includes a frame 21, a filling block and a panel 22. The frame 21 includes a main beam 211 and a connecting piece 212. The main beams 211 are interconnected by the connecting piece 212 to form the frame 21. The frame 21 is a grid-like frame structure. The filling block is arranged in the space of the frame 21, and the panel 22 is arranged on the front and rear sides of the frame 21.

[0022] The skeleton 21 of the frame structure formed by the main beam 211 has extremely strong impact resistance and can meet the protection requirements of the protective door. The filling blocks arranged in the skeleton 21 have the functions of buffering, fire prevention and sound insulation. After the filling blocks are arranged in the skeleton 21, the front and rear sides thereof are respectively fitted with the inner sides of the front and rear panels 22, and the auxiliary skeleton 21 supports the panels 22 and has a certain buffering effect.

[0023] Preferably, the panel 22 is formed by bending a 3mm thin plate, and the filling block is a honeycomb or foam-shaped fireproof core material, and is bonded to the skeleton 21 and the panel 22 by a resin adhesive; the material of the main beam 211 is high-strength aluminum material or high-strength fiber-reinforced composite material. When using high-strength fiber-reinforced composite materials, such as carbon fiber reinforced epoxy resin composite materials or glass fiber reinforced unsaturated polyester resin composite materials are used, which have the characteristics of high strength, high modulus, light weight and corrosion resistance, which can not only meet the load resistance requirements, but also effectively reduce the dead weight of the structure.

[0024] like Figure 9 、 10 As shown in Figure 11, further, the main beam 211 is a square tube, and a cavity 2111 and a connecting groove 2112 are provided on the main beam 211. The cavity 2111 is provided in the middle of the main beam 211. The provision of the cavity 2111 effectively reduces the dead weight of the structure while meeting the structural strength. The connecting groove 2112 is provided on the side of the main beam 211, which plays a role in strengthening the structural strength and being used for connection.

[0025] Furthermore, the panel 22 is connected to the frame 21 through rivet nuts.

[0026] like Figure 9 、 10 As shown in FIG11 , further, the connecting grooves 2112 are T-shaped grooves and are arranged in groups, and a group of two connecting grooves 2112 are arranged on each side of the main beam 211 .

[0027] like Figure 9 、 12 As shown, the connecting member 212 includes a transverse inserting block 2121 and a longitudinal inserting block 2122 . The longitudinal inserting blocks 2122 are arranged perpendicular to the transverse inserting block 2121 and are arranged on both sides of the transverse inserting block 2121 to form a U-shaped connecting member 212 .

[0028] When connecting, the two main beams 211 are arranged perpendicular to each other and connected by a connecting piece 212; the horizontal insertion block 2121 of the connecting piece 212 is set in the connecting groove 2112 on the side of one main beam 211, and the vertical insertion block 2122 of the connecting piece 212 is inserted into the cavity 2111 of the adjacent main beam 211, connecting the two adjacent and mutually perpendicular main beams 211 together.

[0029] like Figure 12 As shown, further, a fixing seat 2123 is provided on each of the transverse insert block 2121 and the longitudinal insert block 2122 , and the fixing seat 2123 is connected to the main beam 211 through a locking bolt.

[0030] like Figure 9 、 11 As shown in Figures 12 and 13, preferably, the transverse inserts 2121 are arranged in groups of two, the two transverse inserts 2121 being arranged in parallel, and their inner ends being connected by a fixing seat 2123. The longitudinal inserts 2122 are arranged in groups of two, the two longitudinal inserts 2122 being respectively arranged at the outer ends of the two transverse inserts 2121, and fixing seats 2123 being provided on the inner sides of the longitudinal inserts 2122. When the connector 212 is connected, the two transverse inserts 2121 are correspondingly arranged in the two connecting grooves 2112 on the side of the main beam 211, and the longitudinal inserts 2122 are inserted into the cavities 2111 of adjacent main beams 211, and the two longitudinal inserts 2122 are respectively in contact with the upper and lower surfaces of the cavities 2111.

[0031] like Figure 4 、 5 As shown, further, the door frame 1 includes a frame 11, a fixing rod 12 and a sealing strip 13. The fixing rod 12 is arranged on the frame 11 and connects the frame 11 to the wall. The sealing strip 13 is arranged on the front side of the frame 11.

[0032] like Figure 6 、 7 As shown, further, the frame 11 includes a main beam 211 and an angle connector 111 , and the main beams 211 of the frame 11 are connected by the angle connector 111 to form a rectangular frame structure.

[0033] like Figure 5 、 6 As shown in Figures 7 and 7, the corner connector 111 is arranged in the cavity 2111 of the main beam 211. The corner connector 111 is an L-shaped structure, with both ends respectively located in the cavities 2111 of two adjacent main beams 211, connecting the two adjacent main beams 211 together. The sealing strips 13 are arranged in pairs in the connecting grooves 2112 of the main beams 211 to form a double sealing structure.

[0034] Furthermore, the fixing rod 12 is an anchor bar and is installed in a through-connection manner. During installation, the outer end of the fixing rod 12 passes through the main beam 211 of the frame 11 and is fixedly connected to the main beam 211 through a thread, and the inner end of the fixing rod 12 is anchored in the wall to connect the door frame 1 to the wall.

[0035] like Figure 13 、 14 As shown, further, the locking mechanism 3 is arranged on the inner side surface of the door leaf 2, and the locking mechanism 3 includes a locking head 31, a linkage rod 32 and a handle assembly 33. The locking heads 31 are arranged at intervals on the door leaf 2 and are connected to the door frame 1 for locking. The linkage rod 32 is arranged between adjacent locking heads 31 for linkage of the locking heads 31. The handle assembly 33 is arranged on one of the locking heads 31 for manual opening and closing of manual locking. When the handle assembly 33 is used for locking and opening, its action will be transmitted through the linkage rod 32, thereby realizing the synchronous action of all locking heads 31.

[0036] like Figure 14 As shown, further, the locking head 31 includes a locking box 311, a transmission gear 312, a locking rack 313 and a linkage rack 314, the locking box 311 is arranged on the door leaf 2, the transmission gear 312, the locking rack 313 and the linkage rack 314 are arranged in the locking box 311, the locking rack 313 and the linkage rack 314 are both engaged with the transmission gear 312, and the linkage racks 314 on adjacent locking heads 31 are connected through a linkage connecting rod 32.

[0037] The operating principle of the locking head 31 is as follows: under the drive of the handle assembly 33, the transmission gear 312 rotates in the locking box 311, and the locking rack 313 and the linkage rack 314 engaged with the transmission gear 312 will move at the same time. The locking rack 313 is driven by the transmission gear 312 to extend and retract horizontally, thereby realizing the extension and retraction of the lock tongue. The linkage rack 314 is driven by the transmission gear 312 to extend and retract vertically, and transmits the motion to the linkage rack 314 connected to it through the linkage connecting rod 32. When the driven linkage rack 314 moves, it will drive the transmission gear 312 engaged with it to rotate, and then drive the locking rack 313 in the adjacent locking head 31 to extend and retract horizontally through the transmission gear 312. Through the above-mentioned power transmission path, the synchronous opening and closing of the lock is realized.

[0038] Furthermore, the handle assembly 33 is fixedly connected to the transmission gear 312 of the locking head 31, the locking rack 313 and the linkage rack 314 are perpendicular to each other and staggered front and back, the locking rack 313 is arranged horizontally, and the linkage rack 314 is arranged vertically, and the adjacent linkage racks 314 are connected by a vertically arranged linkage rod 32.

[0039] Furthermore, the handle assembly 33 includes a handle and a drive shaft, and the handle is connected to the transmission gear 312 through the drive shaft.

[0040] like Figure 15 、 16 As shown, further, the hinge mechanism 4 includes a mounting seat 41, a hinge ear seat 42, a hinge ear 43 and a mounting member 44, the mounting seat 41 is set on the door frame 1 and connected to the wall, the hinge ear seat 42 is set on the mounting seat 41, the hinge ear 43 is set on the door leaf 2 and connected to the hinge ear seat 42, and the hinge ear 43 is connected to the door leaf 2 through the mounting member 44.

[0041] like Figure 17 As shown, further, the mounting member 44 is arranged in the connecting groove 2112 of the door leaf main beam, and the mounting member 44 is connected to the hinge ear 43 by bolts. The mounting member 44 is a T-shaped structure and can be adjusted to any position in the connecting groove 2112 of the main beam 211. After being adjusted into place, it is connected to the hinge ear 43 with bolts to fix its position.

[0042] A method for installing a modular protective airtight door using cold assembly comprises the following steps: S1, component prefabrication: according to the size of the protective airtight door, the main beam 211 of the door frame 1 and the door leaf 2 is manufactured, and then the door frame 1 and the door leaf 2 are assembled separately, and the locking mechanism 3 is assembled at the same time; When assembling the door leaf 2, the main beams 211 are connected to each other using the connectors 212 to form the frame 21, and then the filler blocks are placed in the frame 21, and finally the panels 22 are installed to complete the assembly of the door leaf 2; When assembling the door frame 1, the main beams 211 are connected to each other using the corner connectors 111 to form the frame 11, and the sealing strip 13 is installed on the front side of the frame 11 to complete the assembly of the door frame 1; S2, door frame installation: first install the mounting base 41 on the door frame 1, and then anchor the door frame 1 and the mounting base 41 to the wall through the fixing rod 12; S3, door leaf installation: first install the locking mechanism 3 on the inner side of the door leaf 2, then install the hinge ear 43 on the door leaf 2, install the hinge ear seat 42 on the mounting seat 41, and then connect the assembled door leaf 2 to the door frame 1 through the hinge ear 43 to complete the installation.

[0043] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description. It is intended that all variations within the meaning and range of equivalents of the claims be embraced herein, and any reference signs in the claims should not be construed as limiting the claims to which they relate.

Claims

1. A modular protective airtight door using cold assembly, characterized by: The invention comprises a door frame (1), a door leaf (2), a locking mechanism (3) and a hinge mechanism (4), wherein the door frame (1) is arranged in a wall, the door leaf (2) is connected to the door frame (1) via the hinge mechanism (4), and the locking mechanism (3) is arranged on the door leaf (2) and connected to the door frame (1); The door leaf (2) comprises a frame (21), a filling block and a panel (22), wherein the filling block is arranged in the frame (21), and the panel (22) is arranged on the front and rear sides of the frame (21); the frame (21) comprises a main beam (211) and a connecting member (212), and the main beams (211) are connected to each other via the connecting member (212) to form the frame (21).

2. The cold-assembled modular protective airtight door according to claim 1, characterized in that: The main beam (211) is provided with a cavity (2111) and a connecting groove (2112), wherein the cavity (2111) is provided in the middle of the main beam (211), and the connecting groove (2112) is provided on a side surface of the main beam (211); The connecting member (212) comprises a transverse insert block (2121) and a longitudinal insert block (2122), wherein the longitudinal insert blocks (2122) are arranged on both sides of the transverse insert block (2121), the transverse insert block (2121) is arranged in a connecting groove (2112) of the main beam (211), and the longitudinal insert block (2122) is arranged in a cavity (2111) of an adjacent main beam (211), thereby connecting two adjacent main beams (211) together.

3. The cold-assembled modular protective airtight door according to claim 2, characterized in that: A fixing seat (2123) is provided on each of the transverse insert block (2121) and the longitudinal insert block (2122), and the fixing seat (2123) is connected to the main beam (211) via a locking bolt.

4. The cold-assembled modular protective airtight door according to claim 1, characterized in that: The door frame (1) comprises a frame (11), a fixing rod (12) and a sealing strip (13); the fixing rod (12) is arranged on the frame (11) and connects the frame (11) to the wall; and the sealing strip (13) is arranged on the front side of the frame (11).

5. The cold-assembled modular protective airtight door according to claim 4, characterized in that: The frame (11) comprises a main beam (211) and an angle connector (111), and the main beam (211) of the frame (11) is connected via the angle connector (111) to form a rectangular frame structure; The corner connector (111) is provided in the main beam (211) of the frame (11) to connect adjacent main beams (211) together, and the sealing strip (13) is provided on the front side of the main beam (211); The inner end of the fixing rod (12) is located in the wall, and the outer end passes through the main beam (211) of the frame (11) and is fixedly connected to the main beam (211).

6. The cold-assembled modular protective airtight door according to claim 1, characterized in that: The locking mechanism (3) is arranged on the inner side surface of the door leaf (2), and comprises a locking head (31), a linkage rod (32) and a handle assembly (33). The locking heads (31) are arranged at intervals on the door leaf (2) and are connected to the door frame (1) for locking. The linkage rod (32) is arranged between adjacent locking heads (31), and the handle assembly (33) is arranged on one of the locking heads (31).

7. The cold-assembled modular protective airtight door according to claim 6, characterized in that: The locking head (31) comprises a locking box (311), a transmission gear (312), a locking rack (313) and a linkage rack (314); the locking box (311) is arranged on the door leaf (2); the transmission gear (312), the locking rack (313) and the linkage rack (314) are arranged in the locking box (311); the locking rack (313) and the linkage rack (314) are both engaged with the transmission gear (312); and the linkage racks (314) on adjacent locking heads (31) are connected via a linkage connecting rod (32).

8. The cold-assembled modular protective airtight door according to claim 7, characterized in that: The handle assembly (33) is fixedly connected to the transmission gear (312) of the locking head (31), and the locking rack (313) and the linkage rack (314) are perpendicular to each other and staggered in front and back.

9. The cold-assembled modular protective airtight door according to claim 5, characterized in that: The hinge mechanism (4) comprises a mounting seat (41), a hinge ear seat (42), a hinge ear (43) and a mounting piece (44); the mounting seat (41) is arranged on the door frame (1) and connected to the wall; the hinge ear seat (42) is arranged on the mounting seat (41); the hinge ear (43) is arranged on the door leaf (2) and connected to the hinge ear seat (42); and the hinge ear (43) is connected to the door leaf (2) via the mounting piece (44).

10. The method for installing a modular protective airtight door using cold assembly according to claim 9, wherein: The following steps are included: S1, component prefabrication: according to the size of the protective closed door, the main beam (211) of the door frame (1) and the door leaf (2) is manufactured, and then the door frame (1) and the door leaf (2) are assembled separately, and the locking mechanism (3) is assembled at the same time; When assembling the door leaf (2), the main beams (211) are spliced ​​together using the connector (212) to form a frame (21), and then the filling blocks are placed in the frame (21), and finally the panel (22) is installed to complete the assembly of the door leaf (2); When assembling the door frame (1), the main beams (211) are spliced ​​together using the corner connectors (111) to form a frame (11), and a sealing strip (13) is installed on the front side of the frame (11) to complete the assembly of the door frame (1); S2, door frame installation: first install the mounting base (41) on the door frame (1), and then anchor the door frame (1) and the mounting base (41) in the wall through the fixing rod (12); S3, door leaf installation: first install the locking mechanism (3) on the inner side of the door leaf (2), then install the hinge ear (43) on the door leaf (2), install the hinge ear seat (42) on the mounting seat (41), and then connect the assembled door leaf (2) to the door frame (1) through the hinge ear (43) to complete the installation.

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