Double-cover-edge T-shaped door

Abstract

The utility model discloses a double-cover-edge T-shaped door structure. The double-cover-edge T-shaped door structure comprises a double-cover-edge T-shaped door leaf, a door frame, a special-shaped concealed hinge assembly, a door leaf sealing strip A, a door leaf sealing strip B and a door frame sealing strip C, the T-shaped door leaf is at least provided with a first cover edge A and a second cover edge B on a hinged edge and a locking edge, matched with the door frame, of the door leaf; the door leaf hinge edge is in hinge running fit connection with the door frame through the special-shaped concealed hinge assembly; the door leaf sealing strip A is arranged on a first cover edge A of the door leaf, and the door leaf sealing strip B is arranged on a second cover edge B; a first shoulder A, a second shoulder B and a third shoulder C are arranged on at least the hinged edge and the locking edge of a hinged frame, an upper frame and a locking frame of the door frame matched with the T-shaped door leaf, and a door frame sealing strip C is arranged on the third shoulder C and abuts against the double-cover-edge T-shaped door leaf 1 to seal the abutting portion of the door leaf and the door frame.

Description

Technical Field

[0001] The utility model relates to a double-edge covered T-shaped door structure, belonging to the products of security protection category. Background Art

[0002] The utility model relates to a double-edge covered T-shaped door structure, belonging to the products of security protection category. Summary of the Invention

[0003] Based on the deficiencies of the above technologies, to achieve the above object, the utility model provides the following technical solutions: A T-shaped door with a double-edge covered T-shaped door leaf and a concealed hinge structure is designed by the rectangular T-shaped covered edge that forms the door leaf.

[0004] Solution 1: A double-edge covered T-shaped door, which includes a double-edge covered T-shaped door leaf, a door frame, a special-shaped concealed hinge assembly, a first sealing strip A, a second sealing strip B and a door frame sealing strip C. For the T-shaped door leaf, at least the hinged edge and the locking edge where the door leaf cooperates with the door frame are provided with a first covered edge A and a second covered edge B; the hinged edge of the door leaf is rotationally and cooperatively connected with the door frame through the special-shaped concealed hinge assembly; the first sealing strip A is arranged on the first covered edge A of the door leaf, and the second sealing strip B is arranged on the second covered edge B of the T-shaped door leaf 1 or the second shoulder B of the door frame; at least the hinged edge and the locking edge of the hinge frame, the upper frame and the locking frame where the door frame cooperates with the T-shaped door leaf are provided with a first shoulder A, a second shoulder B and a third shoulder C, and the door frame sealing strip C is arranged on the third shoulder C to abut and seal the abutting part between the double-edge covered T-shaped door leaf 1 and the door frame; the T-shaped door leaf is rotationally connected with the door frame through a plurality of special-shaped concealed hinge assemblies to form a double-edge covered T-shaped door structure. The double-edge covered structure of the door leaf is designed to improve the anti-prying performance of the door leaf and increase the sealing performance of the frame-leaf lapping shoulder.

[0005] The special-shaped concealed hinge assembly includes a door leaf hinge plate, an arc-shaped or multi-folded polygon-shaped special-shaped door frame hinge plate, a rotating shaft and a plain bearing; the arc-shaped or multi-folded polygon-shaped special-shaped door frame hinge plate includes a rotating connection part, an installation connection and fixing part, and a connection section between the rotating connection part and the installation connection and fixing part; the connection section sequentially forms a door leaf first covered edge shoulder A edge relief notch from the rotating connection part through a rotating part shaft hole, a shaft hole rolled edge, a bending angle A, an arc-shaped or multi-folded polygon-shaped surface, and a bending angle B to connect the installation connection and fixing part; the door leaf hinge plate is rotationally matched with the special-shaped door frame hinge plate through the rotating shaft, and the plain bearing is arranged at the outer end of the connecting rotating part shaft hole of the special-shaped door frame hinge plate to abut and install with the inner end of the connecting shaft hole of the door leaf hinge plate; the door leaf hinge plate includes a connecting part shaft hole, a shaft hole extension edge, a bending angle C, a bending edge A, a bending angle D, a 90-degree bending edge B, a bending angle E and a door leaf fixing part to form a double-shoulder door leaf hinge plate; the bending angle C is greater than 90 degrees or a 90-degree bending angle.

[0006] Further: The installation, connection, and fixing part of the special-shaped doorframe hinge plate includes a set of open long-shaped installation holes and at least one closed long-shaped installation hole A, or a set of open long-shaped installation holes, or a set of closed long-shaped installation holes A, or several circular installation holes; at least one set of long-shaped or circular installation holes A is designed on the door leaf hinge plate.

[0007] Further: The first sealing strip A is at least provided with a sealing abutting edge A and a sealing abutting edge B, or a sealing strip with a magnetic strip sealing abutting surface; the second sealing strip B is at least provided with a sealing abutting edge A, and the second sealing strip B has the same or different structural shapes as the doorframe sealing strip C.

[0008] Further: In addition, for a T-shaped door leaf, a combined lock is provided at its locking edge. The combined lock includes a main lock body, a combined lock strip, and a secondary lock point. The main lock body is connected to the secondary lock point through upper and lower connecting rods to drive the secondary lock point to move up and down; an L-shaped groove-type lock hole is designed at the corresponding position of the doorframe and the secondary lock point of the combined lock.

[0009] Further: At least two secondary lock points are provided up and down on the combined lock, and the secondary lock points are T-shaped cylindrical lock heads or T-shaped square lock heads.

[0010] Solution Two: A double-edge-covered T-shaped door, which includes a double-edge-covered T-shaped door leaf a, a doorframe a, a special-shaped concealed hinge assembly a, a first sealing strip A, a second sealing strip B, and a doorframe sealing strip C. For the T-shaped door leaf a, at least the hinged edge and the locking edge where the door leaf cooperates with the doorframe are provided with a first edge cover A and a second edge cover Ba; the hinged edge of the door leaf is rotationally and cooperatively connected to the doorframe a through the special-shaped concealed hinge assembly a; the first sealing strip A is provided on the first edge cover A of the door leaf, and the second sealing strip B is provided on the second edge cover Ba; at least the hinged edge and the locking edge of the hinge frame, the upper frame, and the locking frame of the doorframe a where the T-shaped door leaf a cooperates are provided with a first shoulder A, a second shoulder Da, and a third shoulder C, and the doorframe sealing strip C is provided on the third shoulder C to abut and seal the abutting part between the door leaf and the doorframe.

[0011] The special-shaped concealed hinge assembly a includes a door leaf hinge plate a, an arc-shaped or multi-folded polygon-shaped special-shaped doorframe hinge plate, a rotating shaft, and a plain bearing; the arc-shaped or multi-folded polygon-shaped special-shaped doorframe hinge plate includes a rotating connection part, an installation, connection, and fixing part, and a connection section between the rotating connection part and the installation, connection, and fixing part; the connection section sequentially forms a door leaf first edge cover shoulder A edge relief notch from the rotating connection part through a rotating part shaft hole, a shaft hole rolled-round extension edge, a bending angle A, an arc-shaped or multi-folded polygon surface, and a bending angle B to connect the installation, connection, and fixing part; the door leaf hinge plate a is rotationally cooperated with the special-shaped doorframe hinge plate through the rotating shaft, and the plain bearing is installed at the outer end of the shaft hole connecting the rotating part of the special-shaped doorframe hinge plate and abuts against the inner end of the shaft hole of the door leaf hinge plate a.

[0012] Further: The door leaf hinge plate a of the T-shaped door comprises a connecting part shaft hole a, a shaft hole extension edge a, a bending angle Fa, and a door leaf fixing part a which form the door leaf hinge plate a; the bending angle F is a bending angle greater than 90 degrees or 90 degrees; at least one group of longitudinal or transverse elongated mounting holes Aa are designed on the door leaf hinge plate a.

[0013] Further: On the mating surfaces of the T-shaped door leaf a and the hinge frame, upper frame, and lock frame of the door frame a, there are three shoulders including a first shoulder A, a second shoulder Da, and a third shoulder C, and on the T-shaped door leaf a, there are two cover edge shoulders including a first cover edge shoulder A and a second cover edge shoulder Ba.

[0014] In summary, compared with the single cover edge T-shaped door structure (attached Figure 21 ), the application effect of the present utility model is as follows:

[0015] 1. The hinge adopts a concealed hinge, and the appearance of the T-shaped door is more concise, generous, and has a high appearance value, which better meets the design requirements of the modern light luxury door leaf ceiling.

[0016] 2. The door leaf is designed as a T-shaped cover edge with double cover edges, which improves the anti-prying performance of the T-shaped cover edge of the door leaf. At the same time, adding a frame and leaf sealing shoulder, a sealing strip, and multiple sealing abutting edges improves the sealing performance of the overlapping surface between the T-shaped cover edge of the door leaf and the door frame.

[0017] 3. Multiple T-shaped cylindrical lock heads or T-shaped square lock head secondary lock points are adopted above and below the main lock body on the lock edge of the door leaf, which greatly improves the anti-prying function of the door leaf and meets the customer's demand for safety. Description of the Drawings

[0018] Figure 1 It is the front view of the T-shaped door.

[0019] Figure 2 It is the cross-sectional view A-A (I).

[0020] Figure 3 It is the partial enlarged view of the hinge edge A of the cross-sectional view A-A.

[0021] Figure 4 It is the partial enlarged view of the lock edge B of the cross-sectional view A-A.

[0022] Figure 5 It is the explanatory diagram (I) of the special-shaped concealed hinge assembly.

[0023] Figure 6 It is the explanatory diagram (I) of the special-shaped door frame hinge plate structure of the special-shaped concealed hinge.

[0024] Figure 7 It is the explanatory diagram (I) of the door leaf hinge plate structure of the special-shaped concealed hinge.

[0025] Figure 8It is the structural illustration diagram (II) of the special-shaped doorframe hinge plate of the special-shaped concealed hinge.

[0026] Figure 9 It is the structural illustration diagram (II) of the door leaf hinge plate of the special-shaped concealed hinge.

[0027] Figure 10 It is the structural illustration diagram of the cross-section of the first sealing strip A.

[0028] Figure 11 It is the structural illustration diagram of the cross-section of the first sealing strip A with a magnetic strip.

[0029] Figure 12 It is the structural illustration diagram of the cross-section of the second sealing strip B.

[0030] Figure 13 It is the structural illustration diagram of the integral lock.

[0031] Figure 14 It is the illustration diagram of the lock hole on the doorframe lock side.

[0032] Figure 15 It is the A-A cross-sectional view (II).

[0033] Figure 16 It is the partial enlarged view of the hinge side C of the A-A cross-sectional view (II).

[0034] Figure 17 It is the partial enlarged view of the lock side D of the A-A cross-sectional view (II).

[0035] Figure 18 It is the illustration diagram (II) of the special-shaped concealed hinge assembly a.

[0036] Figure 19 It is the structural illustration diagram (I) of the door leaf hinge plate of the special-shaped concealed hinge assembly a.

[0037] Figure 20 It is the structural illustration diagram (II) of the door leaf hinge plate of the special-shaped concealed hinge assembly a.

[0038] Figure 21 It is the structural illustration diagram of the single-cover-edge T-shaped door. Specific implementation manners

[0039] The technical solution of the present utility model will be further described in detail below in conjunction with the accompanying drawings: As Figures 1 to 14As shown in the figure, Embodiment 1: A double-edge T-shaped door, which includes a T-shaped door leaf 1 with double edges, a door frame 2, a special-shaped concealed hinge assembly 3, a first sealing strip A4, a second sealing strip B5, and a door frame sealing strip C6. For the T-shaped door leaf 1, at least the hinged edge and the locking edge where the door leaf cooperates with the door frame are provided with a first edge A1-1 and a second edge B1-2; the hinged edge of the door leaf is rotationally connected to the door frame 2 through the special-shaped concealed hinge assembly 3; the first sealing strip A4 is provided on the first edge A1-1 of the door leaf, and the second sealing strip B5 is provided on the second edge B1-2 of the T-shaped door leaf 1 or the second shoulder B2-2 of the door frame 2; at least the hinged edge and the locking edge of the hinge frame, the upper frame, and the locking frame of the door frame 2 that cooperate with the T-shaped door leaf 1 are provided with a first shoulder A2-1, a second shoulder B2-2, and a third shoulder C2-3, and the door frame sealing strip C6 is provided on the third shoulder C2-3 and abuts against the double-edge T-shaped door leaf 1 to seal the abutting part between the door leaf and the door frame; the T-shaped door leaf 1 is rotationally connected to the door frame 2 through a plurality of special-shaped concealed hinge assemblies 3 to form a double-edge T-shaped door structure.

[0040] The special-shaped concealed hinge assembly 3 includes a door leaf hinge plate 3-1, a special-shaped door frame hinge plate 3-2 in an arc or multi-folded polygon shape, a rotating shaft 3-3, and a plain bearing 3-4; the special-shaped door frame hinge plate 3-2 in an arc or multi-folded polygon shape includes a rotating connection part 3-2-1, an installation connection and fixing part 3-2-2, and a connection section 3-2-3 between the rotating connection part 3-2-1 and the installation connection and fixing part 3-2-2; the connection section 3-2-3 sequentially extends from the rotating connection part 3-2-1 through a rotating part shaft hole 3-2-4, a shaft hole rolled edge 3-2-5, a bending angle A3-2-6, an arc or multi-folded polygon surface 3-2-7, and a bending angle B3-2-8 to connect the installation connection and fixing part 3-2-2 to form a notch 3-2-9 for the edge of the first edge A1-1 of the door leaf to give way; the door leaf hinge plate 3-1 is rotationally matched with the special-shaped door frame hinge plate 3-2 through the rotating shaft 3-3, and the plain bearing 3-4 is installed with the outer end 3-2-10 of the special-shaped door frame hinge plate 3-2 connecting the rotating part shaft hole 3-2-4 abutting against the inner end 3-1-9 of the connection shaft hole of the door leaf hinge plate 3-1; the door leaf hinge plate 3-1 includes a connecting part shaft hole 3-1-1, a shaft hole extension edge 3-1-2, a bending angle C3-1-3, a bending edge A3-1-4, a bending angle D3-1-5, a 90-degree bending edge B3-1-6, a bending angle E3-1-7, and a door leaf fixing part 3-1-8 to form a door leaf hinge plate 3-1 with double shoulders; the bending angle C (3-1-3) is greater than 90 degrees or a 90-degree bending angle.

[0041] Preferably, the installation and connection fixing part 3-2-2 of the special-shaped door frame hinge plate 3-2 includes a group of open long installation holes 3-2-11 and at least one closed long installation hole A3-2-12, or a group of open long installation holes 3-2-11, or a group of closed long installation holes A3-2-12, or several circular installation holes; at least a group of long or circular installation holes A3-1-10 are designed on the door leaf hinge plate 3-1.

[0042] Preferably, the first sealing strip A4 is at least provided with a sealing abutting edge A4-1 and a sealing abutting edge B4-2, or a sealing strip with a magnetic strip sealing abutting surface 4-3; the second sealing strip B5 is at least provided with a sealing abutting edge A5-1, and the second sealing strip B5 has the same or different structural shapes as the door frame sealing strip C6.

[0043] Preferably, in addition, for the T-shaped door leaf 1, a combined lock 1-6 is provided at its locking edge. The combined lock 1-6 includes a main lock body 1-6-1, a combined lock bar 1-6-2, and a secondary lock point 1-6-3. The main lock body 1-6-1 is connected to the secondary lock point 1-6-3 through upper and lower connecting rods 1-6-4 to drive the secondary lock point 1-6-3 to move up and down; an L-shaped groove lock hole 2-4 is designed at the corresponding position of the door frame 2 and the secondary lock point 1-6-3 of the combined lock 1-6.

[0044] Preferably, several secondary lock points 1-6-3 are provided above and below the combined lock 1-6, and the secondary lock point 1-6-3 is a T-shaped cylindrical lock head or a T-shaped square lock head.

[0045] As Figures 15 to 20 shown, Embodiment 2: A double-edge-covered T-shaped door, which includes a double-edge-covered T-shaped door leaf 1a, a door frame 2a, a special-shaped concealed hinge assembly 3a, a first sealing strip A4, a second sealing strip B5, and a door frame sealing strip C6. For the T-shaped door leaf 1a, at least the hinged edge and the locking edge where the door leaf cooperates with the door frame are provided with a first cover edge A1-1 and a second cover edge Ba1-2a; the hinged edge of the door leaf is hingedly and rotationally connected to the door frame 2a through the special-shaped concealed hinge assembly 3a; the first sealing strip A4 is arranged on the first cover edge A1-1 of the door leaf, and the second sealing strip B5 is arranged on the second cover edge Ba1-2a of the T-shaped door leaf 1a or the second shoulder Da2-2a of the door frame 2a; at least the hinged edge and the locking edge of the hinge frame, the upper frame, and the locking frame of the door frame 2a that cooperate with the T-shaped door leaf 1a are provided with a first shoulder A2-1, a second shoulder Da2-2a, and a third shoulder C2-3, and the door frame sealing strip C6 is arranged on the third shoulder C2-3 to seal the abutting part between the door leaf and the door frame by abutting against the double-edge-covered T-shaped door leaf 1a.

[0046] The special-shaped concealed hinge assembly 3a comprises a door leaf hinge plate a3-1a, an arc-shaped or multi-folded special-shaped door frame hinge plate 3-2, a rotating shaft 3-3 and a plane bearing 3-4; the arc-shaped or multi-folded special-shaped door frame hinge plate 3-2 comprises a rotating connection part 3-2-1, an installation connection fixing part 3-2-2 and a connecting section 3-2-3 between the rotating connection part 3-2-1 and the installation connection fixing part 3-2-2; the connecting section 3-2-3 is composed of a rotating part shaft hole 3-2-4, a shaft hole winding hole 3-2-4, a rotating part shaft hole 3-2-5, a rotating part shaft hole 3-2-6, a rotating part shaft hole 3-2-7, a rotating part shaft hole 3-2-8, a rotating part shaft hole 3-2-9, a rotating part shaft hole 3-2-1, a rotating part shaft hole 3-2-1, a rotating part shaft hole 3-2-2, a rotating part shaft hole 3-2-1, a rotating part shaft hole 3-2-4, a rotating part shaft hole 3-2-2, a rotating part shaft hole 3-2-3, a rotating part shaft hole 3-2-4, a rotating part shaft hole 3-2-5, a rotating part shaft hole 3-2-6, a rotating part shaft hole 3-2-1, a rotating part shaft hole 3-2-1, a rotating part shaft hole 3-2-2, a rotating part shaft hole 3-2-3, a rotating part shaft hole 3-2-4, a rotating part shaft hole 3-2-1, a rotating part shaft hole 3-2-2, a rotating part shaft hole 3-2-3, a rotating part shaft hole 3-2-1, a rotating part shaft hole 3-2-4, a rotating part shaft hole 3-2-2, a rotating part shaft hole 3-2-1, a rotating part shaft hole 3-2-4, a rotating The circular extension edge 3-2-5, the bending angle A3-2-6, the arc or multi-folded edge surface 3-2-7, and the bending angle B3-2-8 are connected and installed to form a first cover edge A1-4 of the door leaf, which is composed of an edge yielding groove 3-2-9; the door leaf hinge plate a3-1a is rotated by the rotating shaft 3-3 to cooperate with the special-shaped door frame hinge plate 3-2, and the plane bearing 3-4 is arranged on the outer end 3-2-10 of the shaft hole 3-2-4 of the connecting rotating part of the special-shaped door frame hinge plate 3-2 and is installed against the inner end of the connecting shaft hole of the door leaf hinge plate a3-1a.

[0047] Preferably: the door hinge plate a3-1a includes a door hinge plate a3-1a consisting of a connecting axis hole a3-1a-1, an axis hole extension edge a3-1a-2, a bending angle Fa3-1a-3 and a door fixing portion a3-1a-4; the bending angle F3-1a-3 is greater than 90 degrees or a bending angle of 90 degrees; and at least one group of longitudinal or transverse elongated mounting holes Aa3-1-10a is designed on the door hinge plate a3-1a.

[0048] Preferably: the T-shaped door leaf 1a and the door frame 2a, the door frame 2a and the T-shaped door leaf 1a mating surfaces of the hinge frame, the upper frame and the lock frame are provided with a three-shouldered door frame with a first shoulder A2-1, a second shoulder Da2-2a and a third shoulder C2-3 and the T-shaped door leaf 1a is provided with a double-shouldered door leaf with a first cover edge shoulder A1-1 and a second cover edge shoulder Ba1-2a.

[0049] Finally, it should be noted that the above examples are only preferred embodiments of the present invention, but the scope of protection is not limited to the above examples. Obviously, there can be many variations. All variations of structure, principle and shape (especially changes in hinges or locks) that can be directly derived or associated by a person skilled in the art from the contents disclosed in the present invention should be considered as the scope of protection of the present invention.

Claims

1. A double-edge T-shaped door, which comprises a double-edge T-shaped door leaf (1), a door frame (2), a special-shaped concealed hinge assembly (3), a first sealing strip A (4), a second sealing strip B (5) and a door frame sealing strip C (6), and is characterized in that: The T-shaped door leaf (1) is provided with a first cover edge A (1-1) and a second cover edge B (1-2) at least at the hinged edge and the locking edge where the door leaf cooperates with the door frame; the hinged edge of the door leaf is hingedly and rotationally connected to the door frame (2) through a special-shaped concealed hinge assembly (3); a first sealing strip A (4) is arranged on the first cover edge A (1-1) of the door leaf, and a second sealing strip B (5) is arranged on the second cover edge B (1-2) of the T-shaped door leaf (1) or the second shoulder B (2-2) of the door frame (2); at least the hinged edge and the locking edge of the hinge frame, the upper frame and the locking frame of the door frame (2) that cooperate with the T-shaped door leaf (1) are provided with a first shoulder A (2-1), a second shoulder B (2-2) and a third shoulder C (2-3), and a door frame sealing strip C (6) is arranged on the third shoulder C (2-3) to abut against the double-cover-edge T-shaped door leaf (1) to seal the abutting part between the door leaf and the door frame; the T-shaped door leaf (1) is hingedly connected to the door frame (2) through a plurality of special-shaped concealed hinge assemblies (3) to form a double-cover-edge T-shaped door structure.

2. The double-edge T-shaped door according to claim 1, characterized in that: The special-shaped concealed hinge assembly (3) includes a door leaf hinge plate (3-1), a special-shaped door frame hinge plate (3-2) in an arc or multi-folded polygon shape, a rotating shaft (3-3) and a plain bearing (3-4); the special-shaped door frame hinge plate (3-2) in an arc or multi-folded polygon shape includes a rotating connection part (3-2-1), an installation connection and fixing part (3-2-2) and a connection section (3-2-3) between the rotating connection part (3-2-1) and the installation connection and fixing part (3-2-2); the connection section (3-2-3) sequentially consists of a rotating part shaft hole (3-2-4), a shaft hole rolled edge extension (3-2-5), a bending angle A (3-2-6), an arc or multi-folded polygon surface (3-2-7), a bending angle B (3-2-8) connecting the installation connection and fixing part (3-2-2) to form a notch (3-2-9) for the edge of the first cover edge A (1-1) of the door leaf to yield; the door leaf hinge plate (3-1) is rotationally matched with the special-shaped door frame hinge plate (3-2) through the rotating shaft (3-3), and the plain bearing (3-4) is arranged at the outer end (3-2-10) of the special-shaped door frame hinge plate (3-2) connecting the rotating part shaft hole (3-2-4) to abut against the inner end (3-1-9) of the connecting shaft hole of the door leaf hinge plate (3-1) for installation; the door leaf hinge plate (3-1) includes a connecting part shaft hole (3-1-1), a shaft hole extension (3-1-2), a bending angle C (3-1-3), a bending edge A (3-1-4), a bending angle D (3-1-5), a 90-degree bending edge B (3-1-6), a bending angle E (3-1-7) and a door leaf fixing part (3-1-8) to form a door leaf hinge plate (3-1) with double shoulders; the bending angle C (3-1-3) is greater than 90 degrees or a 90-degree bending angle.

3. The double-edge T-shaped door according to claim 2, characterized in that: The installation and connection fixing part (3-2-2) of the special-shaped door frame hinge plate (3-2) includes a set of open long installation holes (3-2-11) and at least one closed long installation hole A (3-2-12), or a set of open long installation holes (3-2-11), or a set of closed long installation holes A (3-2-12), or several circular installation holes; at least one set of long or circular installation holes A (3-1-10) is designed on the door leaf hinge plate (3-1).

4. A double-edge T-shaped door according to claim 1 or 2, characterized in that: The first sealing strip A (4) is at least provided with a sealing abutting edge A (4-1) and a sealing abutting edge B (4-2), or a sealing strip with a magnetic strip sealing abutting surface (4-3); the second sealing strip B (5) is at least provided with a sealing abutting edge C (5-1), and the second sealing strip B (5) has the same or different structural shapes as the door frame sealing strip C (6).

5. A double-edge T-shaped door according to any one of claims 1 and 2, characterized in that: For the T-shaped door leaf (1), a combined lock (1-6) is provided on its locking edge. The combined lock (1-6) includes a main lock body (1-6-1), a combined lock strip (1-6-2), and a secondary lock point (1-6-3). The main lock body (1-6-1) is connected to the secondary lock point (1-6-3) through upper and lower connecting rods (1-6-4) to drive the secondary lock point (1-6-3) to move up and down; an L-shaped groove lock hole (2-4) is designed at the corresponding position of the door frame (2) and the secondary lock point (1-6-3) of the combined lock (1-6).

6. A double-edge T-shaped door according to claim 5, characterized in that: Several secondary lock points (1-6-3) are provided above and below the combined lock (1-6), and the secondary lock point (1-6-3) is a T-shaped cylindrical lock head or a T-shaped square lock head.

7. A double-edge T-shaped door according to any one of claims 1 and 2, characterized in that: It includes a T-shaped door leaf a (1a) with double cover edges, a door frame a (2a), a special-shaped concealed hinge assembly a (3a), a first sealing strip A (4), a second sealing strip B (5), and a door frame sealing strip C (6). For the T-shaped door leaf a (1a), at least the hinged edge and the locking edge where the door leaf cooperates with the door frame are provided with a first cover edge A (1-1) and a second cover edge Ba (1-2a); the hinged edge of the door leaf is rotationally and cooperatively connected to the door frame a (2a) through the special-shaped concealed hinge assembly a (3a); the first sealing strip A (4) is provided on the first cover edge A (1-1) of the door leaf, and the second sealing strip B (5) is provided on the second cover edge Ba (1-2a) of the T-shaped door leaf a (1a) or the second shoulder Da (2-2a) of the door frame a (2a); at least the hinged edge and the locking edge of the hinge frame, the upper frame, and the locking frame where the door frame a (2a) cooperates with the T-shaped door leaf a (1a) are provided with a first shoulder A (2-1), a second shoulder Da (2-2a), and a third shoulder C (2-3), and the door frame sealing strip C (6) is provided on the third shoulder C (2-3) to seal the abutting part between the door leaf and the door frame by abutting against the T-shaped door leaf a (1a) with double cover edges.

8. A double-edge T-shaped door according to claim 7, characterized in that: The special-shaped concealed hinge assembly a (3a) includes a door leaf hinge plate a (3-1a), a special-shaped door frame hinge plate with an arc or multi-folded polygon shape (3-2), a rotating shaft (3-3), and a plain bearing (3-4); the special-shaped door frame hinge plate with an arc or multi-folded polygon shape (3-2) includes a rotating connection part (3-2-1), a mounting connection and fixing part (3-2-2), and a connection section (3-2-3) between the rotating connection part (3-2-1) and the mounting connection and fixing part (3-2-2); the connection section (3-2-3) sequentially forms a door leaf first cover edge shoulder A (1-4) edge relief notch (3-2-9) by connecting the mounting connection and fixing part (3-2-2) from the rotating connection part (3-2-1) through a rotating part shaft hole (3-2-4), a shaft hole rolled edge extension (3-2-5), a bending angle A (3-2-6), an arc or multi-folded polygon surface (3-2-7), and a bending angle B (3-2-8); the door leaf hinge plate a (3-1a) is rotationally matched with the special-shaped door frame hinge plate (3-2) through the rotating shaft (3-3), and the plain bearing (3-4) is installed with the outer end (3-2-10) of the special-shaped door frame hinge plate (3-2) connected to the rotating part shaft hole (3-2-4) abutted against the inner end of the connection shaft hole of the door leaf hinge plate a (3-1a).

9. A double-edge T-shaped door according to claim 8, characterized in that: The door leaf hinge plate a (3-1a) includes a connecting part shaft hole a (3-1a-1), a shaft hole extension edge a (3-1a -2), a bending angle Fa (3-1a -3), and a door leaf fixing part a (3-1a -4) to form the door leaf hinge plate a (3-1a); the bending angle F (3-1a-3) is a bending angle greater than 90 degrees or 90 degrees; at least one set of longitudinal or transverse long mounting holes Aa (3-1-10a) is designed on the door leaf hinge plate a (3-1a).

10. A double-edge T-shaped door according to claim 7, characterized in that: The T-shaped door leaf a (1a) and the door frame a (2a) have a three-shoulder door frame and a T-shaped door leaf a (1a) with a first shoulder A (2-1), a second shoulder Da (2-2a), and a third shoulder C (2-3) on at least the mating surfaces of the hinge frame and the lock frame of the door frame a (2a) and the T-shaped door leaf a (1a), and a double-cover edge door leaf with a first cover edge A (1-1) and a second cover edge Ba (1-2a).

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