A front door for easy collection of items

Abstract

The application discloses a kind of entry door of convenient collection article, it is related to entry door technical field, including metal door, the surface of metal door is provided with peephole, door lock mechanism, the surface of metal door is provided with mail collection structure, the mail collection structure includes mounting bracket, mail collection box, movable plate, mail drop mouth, opening and closing door, password mechanism, two installation plate one, two installation plate two, one central control mechanism, one rechargeable battery, one electric latch mechanism, one fixed rod, three fixed plates, the outside of movable plate is fixedly provided with limit board, two connecting pieces.The entry door of convenient collection article of the application, the combination method of using the function of password mechanism and metal door avoids the face-to-face contact between owner and expressman, and the combination method of password mechanism and mail collection box prevents the loss of articles, and multiple repeated delivery reduces the trouble of multiple pickups.

Description

Technical Field

[0001] This invention relates to the field of entrance door technology, and in particular to an entrance door that facilitates the receipt and storage of items. Background Technology

[0002] Front doors are typically made of metal and serve to open and close doors for security and protection. Metal doors used in homes are usually single-leaf designs. They are frequently used in modern home renovations, being both practical and safe. However, there is currently no multi-functional metal door on the market that is both practical and safe, and also allows for the storage of items, letters, and packages, preventing direct contact between delivery personnel and other visitors.

[0003] However, traditional metal doors do not have the function of receiving express packages; they only serve the functions of opening and closing and protection. Due to the rapid development of the internet and the express delivery industry, users shop online frequently. As demand increases, couriers deliver packages to the door. Sometimes, when users are not at home, the packages need to be left at the express station, and users have to go to the station to pick them up again, which is very inconvenient. Therefore, this invention proposes an entrance door that facilitates the receipt of items. Summary of the Invention

[0004] The main objective of this invention is to provide a convenient entrance door for receiving items, which can effectively solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: An entrance door for easy access to items includes a metal door, the surface of which is provided with a peephole and a door lock mechanism, and the surface of which is provided with a receiving structure. The receiving structure includes a mounting frame, a receiving box, a movable plate, a receiving port, an opening and closing door, a combination lock mechanism, two mounting plates (first and second), a central control mechanism, a rechargeable battery, an electric bolt lock mechanism, a fixing rod, and three fixing plates. The movable plate is externally fixed with a limit plate and two connecting pieces. Bases are fixedly installed on both sides of the mounting frame. A multi-stage electric telescopic rod (first) is rotatably mounted on one side of each base. One end of the multi-stage electric telescopic rod (first) is fixedly connected to a connecting plate, and a movable ring is rotatably mounted on the inner side of the connecting plate. The movable ring and the corresponding connecting piece are connected by bolts.

[0006] In a preferred embodiment of the present invention, the mounting bracket is welded to the outside of the metal door, the mail box is slidably disposed on the inside of the mounting bracket, and the mail box is penetrated by a limiting plate, with one end of the movable plate and the mail box slidably disposed through each other.

[0007] In a preferred embodiment of the present invention, the loading port is located outside the metal door and extends through the front and rear of the metal door. The opening and closing door is located inside the loading port and is rotatably connected to the metal door via a fixing rod. The fixing plate is connected to the metal door via several screws. A motor is installed outside the fixing plate, and the output shaft of the motor is fixedly connected to a bevel gear through the fixing plate. Three bevel gears are fixedly installed outside the fixing rod, and the bevel gears mesh with each other.

[0008] As a preferred technical solution of the present invention, the password mechanism, mounting plate one, mounting plate two, and electric bolt lock mechanism are all fixedly connected to the door opening and closing mechanism. The central control mechanism is connected to mounting plate one by several screws one. The rechargeable battery is connected to mounting plate two by several screws one. The inside of the insertion port is provided with a reserved opening. The electric bolt lock mechanism and the reserved opening are compatiblely matched.

[0009] As a preferred technical solution of the present invention, the receiving structure further includes a limiting component one, the limiting component one including a base plate, the base plate and the mounting bracket being fixedly connected, two guide rods being provided through the outside of the base plate, the two ends of the two guide rods being fixedly connected by a handle and a plug plate respectively, and a spring one being provided between the plug plate and the base plate, the spring one being located on the periphery of the corresponding guide rod, the limiting plate having an opening on the outside, and the plug plate and the limiting plate having an adaptive match.

[0010] As a preferred embodiment of the present invention, the receiving structure further includes a second limiting component, which includes a limiting block and a first baffle. The limiting block is fixedly connected to the mounting bracket, and the first baffle is slidably connected to the limiting block.

[0011] As a preferred embodiment of the present invention, the receiving structure further includes a sliding auxiliary component, which includes a fixed frame, two sliding plates, and a shelf. The fixed frame and the sliding plates are fixedly connected to the movable plate. One end of the shelf is rotatably connected to the fixed frame, and the other end of the shelf is slidably connected to the sliding plate. Several movable rollers are rotatably arranged on the outside of the shelf, and several springs are arranged between the shelf and the movable plate.

[0012] As a preferred embodiment of the present invention, the inner side of the receiving box is provided with a lifting structure, the lifting structure includes four serrated plates and a shelf, the serrated plates are fixedly connected to the receiving box, the shelf is slidably disposed inside the receiving box, the top of the shelf is fixedly provided with two fixed frames and two protective plates, a gear transmission component is rotatably disposed through the inner side of the fixed frame, and one end of the gear transmission component is fixedly connected to the output shaft of the second motor, the gear transmission component and the serrated plates are meshed together.

[0013] As a preferred embodiment of the present invention, the outside of the mail box is provided with an anti-theft structure. The anti-theft structure includes a sliding plate 2, which is connected to the mail box by a plurality of screws 3. A baffle 2 and a multi-stage electric telescopic rod 2 are fixedly provided on the outside of the sliding plate 2. An anti-theft plate is slidably provided on the outside of the sliding plate 2. A push plate is fixedly connected to one end of the multi-stage electric telescopic rod 2, and the push plate and the anti-theft plate are fixedly connected. The anti-theft plate is used to protect the door lock mechanism.

[0014] As a preferred embodiment of the present invention, the receiving box has a receiving port on its exterior, and the receiving port and the delivery port are positioned to match.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting up a package receiving structure, the combination of a password mechanism and a metal door avoids direct contact between the owner and the courier, and the combination of the password mechanism and the package receiving box prevents the loss of items. It also allows for repeated delivery, reducing the inconvenience of multiple pickups. The movable plate can serve as a barrier for the package receiving box, and its usage can be changed as needed through the cooperation of connectors, multi-stage electric telescopic rods, movable rings, and bolt fasteners to achieve different usage effects and improve work adaptability. 2. By setting a limit component one in conjunction with the receiving structure, it is beneficial to fix the receiving box inside the mounting frame, which can prevent the receiving box from moving during operation, and at the same time facilitate the installation and disassembly of the receiving box. Limit component two in conjunction with limit component one can block the insert plate through baffle one, which facilitates the removal and installation of the receiving box. 3. By setting up a sliding auxiliary component in conjunction with the receiving structure, it helps to make up for the shortcomings of the receiving box and can solve the problem that large-sized express packages cannot be put into the receiving box. At the same time, the setting of the shelf, movable roller and spring can play a role in buffering and unloading express packages. 4. By setting up a lifting structure in conjunction with the receiving structure, it is convenient to receive small-sized express packages, which can prevent fragile express packages from being directly placed in the receiving box and thus causing damage. At the same time, the shelf can block the receiving box, preventing the courier from reaching inside to open the door lock mechanism during the receiving process, thus improving the anti-theft effect. 5. By setting up an anti-theft structure in conjunction with the receiving structure, the anti-theft effect of the entrance door can be further enhanced. This can solve the problem of the receiving box being completely unprotected after the movable plate rotates down. Before the movable plate rotates down, the central control mechanism can act on the multi-stage electric telescopic rod to make the anti-theft plate cover and protect the door lock mechanism, preventing the courier from reaching inside and touching the door lock mechanism after the movable plate rotates down, thus preventing the theft. Attached Figure Description

[0016] Figure 1 This is a rear-view perspective three-dimensional structural diagram of a metal door for conveniently receiving items, according to the present invention. Figure 2 This is a front-view perspective three-dimensional structural diagram of a metal door for conveniently receiving items, according to the present invention. Figure 3 This is a rear-view three-dimensional structural diagram of the opening and closing structure of an entrance door for convenient collection of items according to the present invention. Figure 4 This invention provides an entrance door for conveniently receiving items. Figure 3 Enlarged view of point A in the middle; Figure 5 This is a three-dimensional structural diagram of the opening and closing door and the metal door of an entrance door for convenient collection of items according to the present invention. Figure 6 This invention provides an entrance door for conveniently receiving items. Figure 5 Enlarged view at point B in the middle; Figure 7 This is a three-dimensional structural diagram showing the disassembled movable panel, mail box, and mounting bracket of an entrance door for convenient collection of items according to the present invention. Figure 8 This invention provides an entrance door for conveniently receiving items. Figure 7 Enlarged view at point C; Figure 9 This is a three-dimensional structural diagram showing the guide rod, base plate, and baffle of an entrance door for convenient collection of items according to the present invention. Figure 10 This is a three-dimensional structural diagram of a storage rack and fixing frame for a front door that facilitates the collection of items, according to the present invention. Figure 11 This is a partial three-dimensional structural diagram of an entrance door for convenient collection of items according to the present invention. Figure 12 This is a three-dimensional structural diagram of a storage panel and a mail box for a front door that facilitates the collection of items, according to the present invention. Figure 13 This is a three-dimensional structural diagram of the anti-theft plate, sliding plate 2, and mail box of an entrance door for convenient collection of items according to the present invention. Figure 14 This is a schematic diagram of the overall upward structure of an entrance door for convenient collection of items according to the present invention; Figure 15 This is a top view schematic diagram of the overall structure of an entrance door for convenient collection of items according to the present invention; Figure 16 This is a schematic diagram of the overall side view of an entrance door for convenient collection of items according to the present invention; Figure 17 This is a schematic diagram of the overall rear view structure of an entrance door that facilitates the receipt of items according to the present invention.

[0017] In the diagram: 1. Metal door; 2. Peephole; 3. Door lock mechanism; 4. Mail receiving structure; 5. Lifting structure; 6. Anti-theft structure; 7. Mounting bracket; 8. Mailbox; 9. Movable plate; 10. Mail slot; 11. Door opening / closing mechanism; 12. Password mechanism; 13. Mounting plate one; 14. Mounting plate two; 15. Screw one; 16. Central control mechanism; 17. Rechargeable battery; 18. Electric bolt lock mechanism; 19. Fixing rod; 20. Fixing plate; 21. Screw two; 22. Motor one; 23. Bevel gear one; 24. Limit plate; 25. Connector; 26. Base; 27. Multi-stage electric telescopic mechanism 1. Rod 1; 28. Connecting plate; 29. ​​Movable ring; 30. Bolt fastener; 31. Base plate; 32. Guide rod; 33. Handle; 34. Insert plate; 35. Spring 1; 36. Limiting block; 37. Baffle 1; 38. Fixing frame; 39. Slide plate 1; 40. Shelf; 41. Movable roller; 42. Spring 2; 43. Serrated plate; 44. Shelf; 45. Fixing frame; 46. Protective plate; 47. Gear transmission component; 48. Motor 2; 49. Slide plate 2; 50. Screw 3; 51. Baffle 2; 52. Anti-theft plate; 53. Multi-stage electric telescopic rod 2; 54. Push plate. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0019] like Figures 1-17 As shown, an entrance door for easy collection of items includes a metal door 1, a peephole 2 and a door lock mechanism 3 on the surface of the metal door 1, and a collection structure 4 on the surface of the metal door 1. The receiving structure 4 includes a mounting frame 7, a receiving box 8, a movable plate 9, a receiving port 10, an opening and closing door 11, a password mechanism 12, two mounting plates 13, two mounting plates 14, a central control mechanism 16, a rechargeable battery 17, an electric bolt lock mechanism 18, a fixing rod 19, and three fixing plates 20. The movable plate 9 is externally fixed with a limit plate 24 and two connecting pieces 25. The mounting frame 7 is fixedly mounted with a base 26 on both sides. A multi-stage electric telescopic rod 27 is rotatably mounted on one side of the base 26. A connecting plate 28 is fixedly connected to one end of the multi-stage electric telescopic rod 27, and a movable ring 29 is rotatably mounted on the inner side of the connecting plate 28. The movable ring 29 and the corresponding connecting piece 25 are connected by bolts and fasteners 30.

[0020] The package receiving structure 4 utilizes the combination of the password mechanism 12 and the metal door 1 to avoid direct contact between the owner and the courier, and the combination of the password mechanism 12 and the package receiving box 8 to prevent the loss of items. It also allows for repeated delivery, reducing the hassle of picking up packages multiple times.

[0021] In this embodiment, the mounting bracket 7 is welded to the outside of the metal door 1, the mail box 8 is slidably disposed inside the mounting bracket 7, and the mail box 8 is penetrated by the limiting plate 24. One end of the movable plate 9 is slidably disposed through the mail box 8.

[0022] The movable plate 9 can serve as a enclosure for the mail box 8, and its usage state can be changed as needed by the cooperation of the connector 25, the multi-stage electric telescopic rod 27, the movable ring 29, and the bolt fasteners 30, so as to achieve different usage effects and improve work adaptability.

[0023] In this embodiment, the loading port 10 is located outside the metal door 1 and passes through the front and rear parts of the metal door 1. The opening and closing door 11 is located inside the loading port 10 and is rotatably connected to the metal door 1 via a fixing rod 19. The fixing plate 20 is connected to the metal door 1 via several screws 21. A motor 22 is provided outside the fixing plate 20, and a bevel gear 23 is fixedly connected to the output shaft of the motor 22 through the fixing plate 20. Three bevel gears are fixedly provided outside the fixing rod 19, and the bevel gears 23 and bevel gears are meshed together.

[0024] The motor 22 engages with the bevel gear 23 and the corresponding bevel gear 2, enabling the door 11 to rotate and open or close.

[0025] In this embodiment, the password mechanism 12, mounting plate one 13, mounting plate two 14, and electric bolt lock mechanism 18 are all fixedly connected to the door 11. The central control mechanism 16 is connected to the mounting plate one 13 by several screws one 15. The rechargeable battery 17 is connected to the mounting plate two 14 by several screws one 15. The loading port 10 has a reserved opening inside, and the electric bolt lock mechanism 18 is compatible with the reserved opening.

[0026] Under the command of the central control mechanism 16, the electric bolt lock mechanism 18 causes the plug to be inserted into the reserved opening of the insertion port 10 to restrain the opening and closing door 11.

[0027] In this embodiment, the receiving structure 4 also includes a limiting component 1, which includes a base plate 31. The base plate 31 and the mounting bracket 7 are fixedly connected. Two guide rods 32 are provided through the outside of the base plate 31. The two ends of the two guide rods 32 are fixedly connected by a handle 33 and an insert plate 34, respectively. A spring 35 is provided between the insert plate 34 and the base plate 31. The spring 35 is located on the periphery of the corresponding guide rod 32. The limiting plate 24 has an insertion port on its outside. The insertion ports of the insert plate 34 and the limiting plate 24 are compatiblely matched.

[0028] The limiting component, together with the receiving structure 4, can fix the receiving box 8 inside the mounting frame 7, which can prevent the receiving box 8 from moving during operation and facilitate the installation and disassembly of the receiving box 8.

[0029] In this embodiment, the receiving structure 4 also includes a second limiting component, which includes a limiting block 36 and a baffle 37. The limiting block 36 is fixedly connected to the mounting bracket 7, and the baffle 37 is slidably connected to the limiting block 36.

[0030] Limiting component 2, together with limiting component 1, can block the insert plate 34 through baffle 37, making it easier to remove and install the mail box 8.

[0031] In this embodiment, the receiving structure 4 also includes a sliding auxiliary component, which includes a fixed frame 38, two sliding plates 39, and a shelf 40. The fixed frame 38 and the sliding plates 39 are fixedly connected to the movable plate 9. One end of the shelf 40 is rotatably connected to the fixed frame 38, and the other end of the shelf 40 is slidably connected to the sliding plate 39. Several movable rollers 41 are rotatably arranged on the outside of the shelf 40, and several springs 42 are arranged between the shelf 40 and the movable plate 9.

[0032] The sliding auxiliary component, together with the receiving structure 4, can make up for the shortcomings of the receiving box 8 and solve the problem that large-sized express packages cannot be put into the receiving box 8. At the same time, the setting of the shelf 40, the movable roller 41, and the spring 42 can play a role in buffering and unloading the express packages.

[0033] In this embodiment, a lifting structure 5 is provided inside the receiving box 8. The lifting structure 5 includes four serrated plates 43 and a shelf 44. The serrated plates 43 are fixedly connected to the receiving box 8. The shelf 44 is slidably disposed inside the receiving box 8. Two fixed frames 45 and two protective plates 46 are fixedly disposed on the top of the shelf 44. A gear transmission component 47 is rotatably disposed through the inner side of the fixed frame 45. One end of the gear transmission component 47 is fixedly connected to the output shaft of the second motor 48. The gear transmission component 47 and the serrated plates 43 are meshed together.

[0034] The lifting structure 5, in conjunction with the receiving structure 4, facilitates the receipt of small-sized express packages, preventing fragile packages from being directly placed into the receiving box 8 and thus avoiding damage. At the same time, the shelf 44 can block the receiving box 8, preventing the courier from reaching inside and opening the door lock mechanism 3 during the package receiving process, thereby improving the anti-theft effect.

[0035] In this embodiment, the outside of the mail box 8 is provided with an anti-theft structure 6. The anti-theft structure 6 includes a slide plate 49. The slide plate 49 is connected to the mail box 8 by a number of screws 50. A baffle 51 and a multi-stage electric telescopic rod 53 are fixedly provided on the outside of the slide plate 49. An anti-theft plate 52 is slidably provided on the outside of the slide plate 49. A push plate 54 is fixedly connected to one end of the multi-stage electric telescopic rod 53, and the push plate 54 and the anti-theft plate 52 are fixedly connected. The anti-theft plate 52 is used to protect the door lock mechanism 3.

[0036] The anti-theft structure 6, in conjunction with the receiving structure 4, can further enhance the anti-theft effect of the entrance door. It can solve the problem that the receiving box 8 is completely unprotected after the movable plate 9 rotates down. Before the movable plate 9 rotates down, the central control mechanism 16 acts on the multi-stage electric telescopic rod 53 to make the anti-theft plate 52 cover and protect the door lock mechanism 3, preventing the courier from reaching inside and touching the door lock mechanism 3 after the movable plate 9 rotates down, thus opening the metal door 1 and preventing theft.

[0037] In this embodiment, the outside of the mail box 8 is provided with a mail receiving port, and the mail receiving port and the mail dropping port 10 are positioned to match.

[0038] The express package enters the receiving box 8 through the drop-off port 10 and the receiving port 8.

[0039] It should be noted that this invention is an entrance door that facilitates the collection of items. Before use, the metal door 1 is installed in the required location to enable it to meet the operating conditions. The central control mechanism 16 and the rechargeable battery 17 are connected to several mounting plates 13 and 14 at corresponding positions. The mounting bracket 7 is then welded to the metal door 1. The handle 33 is pulled to move the insert plate 34 to the predetermined position. The sliding baffle 37 is manually slid towards the insert plate 34, blocking it. The mail box 8 is then inserted into the mounting bracket 7. The sliding baffle 37 is slid back to its original position. The insert plate 34, under the action of the spring 35, is inserted into the slot of the limiting plate 24 to constrain the position of the mail box 8. The multi-stage electric telescopic rod 27 is rotated to the predetermined angle so that the movable ring 29 and the connecting piece 25 are aligned. The bolt fastener 30 is then installed to connect the movable ring 29 and the connecting piece 25. The sliding plate 49 is then installed on the mail box 8 using several screws 50. At this point, the entrance door reaches its initial state. Figure 1 , Figure 2 The state shown; When the package is small, the courier first contacts the homeowner and informs them of the package size. The homeowner then provides the courier with a pre-set password. Upon arrival at the homeowner's door, the courier enters the corresponding password at the password mechanism 12. The central control mechanism 16 then sends an opening command to the electric bolt lock mechanism 18, causing its plug to be pulled out of the reserved slot in the package inlet 10 to release the restriction. Subsequently, the central control mechanism 16 sends a command to motor 22, causing it to engage bevel gears 23 and 2, thus rotating and opening the door 11. Simultaneously, the central control mechanism 16 sends a command to motor 48, causing the gear transmission... The 47 and the serrated plate 43 engage, causing the shelf 44 to move upward toward the delivery port 10 until the top surface of the shelf 44 is flush with the inner bottom surface of the delivery port 10. The courier places the package from the delivery port 10 onto the top of the shelf 44 and then removes his hand. The central control mechanism 16 sequentially inputs commands to motor 22, electric bolt lock mechanism 18, and motor 48. Motor 22 causes the door 11 to rotate and close. At the same time, the electric bolt lock mechanism 18 acts to re-insert the plug into the reserved slot inside the delivery port 10. Motor 48 acts to move the shelf 44 down to the initial position and then stops, thus completing one package collection operation. When a package is large, the courier first contacts the homeowner and informs them of the package's size. The homeowner then provides the courier with a pre-set password. Upon arrival at the homeowner's door, the courier enters the corresponding password at the password mechanism 12. The central control mechanism 16 then sends an opening command to the electric bolt lock mechanism 18, causing its plug to be pulled out of the reserved slot in the package delivery port 10, thus releasing the lock. Subsequently, the central control mechanism 16 sends a command to motor 22, causing motor 22 to engage bevel gears 23 and 2, thereby opening and closing door 11. Rotating to open, the central control mechanism 16 sends a command to the multi-stage electric telescopic rod 53, causing it to act on the push plate 54, moving the anti-theft plate 52 towards the door lock mechanism 3 until the anti-theft plate 52 covers the door lock mechanism 3 and stops. At this point, the anti-theft plate 52 protects the door lock mechanism 3, preventing the courier from reaching into the package slot 10 and opening the door lock mechanism 3 from the inside, thus achieving an anti-theft effect. Then, the central control mechanism 16 sends a command to the multi-stage electric telescopic rod 27, due to the tightening of the bolts. Part 30 connects the movable ring 29 and the connecting part 25, so the multi-stage electric telescopic rod 27 will act on the movable plate 9 to gradually rotate and move downward. When the movable plate 9 rotates and moves downward to the predetermined position, it stops. At this time, the movable plate 9 is tilted and one end of the movable plate 9 is close to the ground. The courier inserts the express package into the delivery port 10. The express package first contacts the movable roller 41 and then gradually slides to the ground under the action of the movable roller 41. The spring 42 can buffer and unload the express package. After the express package lands, it is conveyed by the central control mechanism 16. The corresponding commands cause the door 11 to rotate and close, the electric bolt lock mechanism 18 to insert the plug into the reserved slot in the package receiving port 10, the multi-stage electric telescopic rod 27 to act on the movable plate 9 to return to the initial position, and the multi-stage electric telescopic rod 53 to act on the anti-theft plate 52 to return to the initial position, thus completing one package receiving operation; in addition, the central control mechanism 16 controls the electric bolt lock mechanism 18, the motor 22, the multi-stage electric telescopic rod 27, the motor 48, and the multi-stage electric telescopic rod 53 respectively by transmitting commands, which is a conventional technical means.

Claims

1. A convenient entrance door for receiving items, comprising a metal door (1), wherein the surface of the metal door (1) is provided with a peephole (2) and a door lock mechanism (3), characterized in that: The surface of the metal door (1) is provided with a receiving structure (4). The receiving structure (4) includes a mounting frame (7), a receiving box (8), a movable plate (9), a receiving port (10), an opening and closing door (11), a password mechanism (12), two mounting plates (13), two mounting plates (14), a central control mechanism (16), a rechargeable battery (17), an electric bolt lock mechanism (18), a fixed rod (19), and three fixed plates (20). The movable plate (9) is fixedly provided with a limit plate (24) and two connecting pieces (25) on its outside. The mounting frame (7) is fixedly provided with a base (26) on both sides of its outside. A multi-stage electric telescopic rod (27) is rotatably provided on one side of the base (26). A connecting plate (28) is fixedly connected to one end of the multi-stage electric telescopic rod (27), and a movable ring (29) is rotatably provided on the inner side of the connecting plate (28). The movable ring (29) and the corresponding connecting piece (25) are connected by bolt fasteners (30).

2. The entrance door for conveniently receiving items according to claim 1, characterized in that: The mounting bracket (7) is welded to the outside of the metal door (1). The mail box (8) is slidably disposed inside the mounting bracket (7), and the mail box (8) is penetrated by the limiting plate (24). One end of the movable plate (9) and the mail box (8) are slidably disposed through each other.

3. The entrance door for conveniently receiving items according to claim 1, characterized in that: The loading port (10) is located outside the metal door (1) and passes through the front and rear of the metal door (1). The opening and closing door (11) is located inside the loading port (10) and is rotatably connected to the metal door (1) via a fixing rod (19). The fixing plate (20) is connected to the metal door (1) via several screws (21). A motor (22) is installed outside the fixing plate (20), and the output shaft of the motor (22) passes through the fixing plate (20) and is fixedly connected to a bevel gear (23). Three bevel gears are fixedly installed outside the fixing rod (19), and the bevel gears (23) and bevel gears (23) are meshed together.

4. The entrance door for conveniently receiving items according to claim 1, characterized in that: The password mechanism (12), mounting plate one (13), mounting plate two (14), and electric bolt lock mechanism (18) are all fixedly connected to the door (11). The central control mechanism (16) is connected to mounting plate one (13) by several screws one (15). The rechargeable battery (17) is connected to mounting plate two (14) by several screws one (15). The loading port (10) has a reserved opening inside. The electric bolt lock mechanism (18) and the reserved opening are compatible.

5. A front door for conveniently receiving items according to claim 1, characterized in that: The receiving structure (4) also includes a limiting component one, which includes a base plate (31). The base plate (31) and the mounting bracket (7) are fixedly connected. Two guide rods (32) are provided through the outside of the base plate (31). The two ends of the two guide rods (32) are fixedly connected by a handle (33) and a plug plate (34) respectively. A spring (35) is provided between the plug plate (34) and the base plate (31). The spring (35) is located on the periphery of the corresponding guide rod (32). The limiting plate (24) has an insertion port on its outside. The insertion port of the plug plate (34) and the limiting plate (24) are compatible.

6. The entrance door for conveniently receiving items according to claim 1, characterized in that: The receiving structure (4) also includes a second limiting component, which includes a limiting block (36) and a baffle (37). The limiting block (36) and the mounting bracket (7) are fixedly connected, and the baffle (37) and the limiting block (36) are slidably connected.

7. A front door for conveniently receiving items according to claim 1, characterized in that: The receiving structure (4) also includes a sliding auxiliary component, which includes a fixed frame (38), two sliding plates (39), and a shelf (40). The fixed frame (38) and the sliding plates (39) are fixedly connected to the movable plate (9). One end of the shelf (40) is rotatably connected to the fixed frame (38), and the other end of the shelf (40) is slidably connected to the sliding plates (39). Several movable rollers (41) are rotatably arranged on the outside of the shelf (40), and several springs (42) are arranged between the shelf (40) and the movable plate (9).

8. A front door for conveniently receiving items according to claim 1, characterized in that: The inner side of the receiving box (8) is provided with a lifting structure (5). The lifting structure (5) includes four serrated plates (43) and a shelf (44). The serrated plates (43) are fixedly connected to the receiving box (8). The shelf (44) is slidably disposed inside the receiving box (8). The top of the shelf (44) is fixedly provided with two fixed frames (45) and two protective plates (46). The inner side of the fixed frame (45) is provided with a gear transmission component (47) that rotates through it. One end of the gear transmission component (47) is fixedly connected to the output shaft of the second motor (48). The gear transmission component (47) and the serrated plates (43) are meshed together.

9. A front door for conveniently receiving items according to claim 1, characterized in that: The mailbox (8) is provided with an anti-theft structure (6) on its exterior. The anti-theft structure (6) includes a sliding plate (49). The sliding plate (49) is connected to the mailbox (8) by a number of screws (50). A baffle (51) and a multi-stage electric telescopic rod (53) are fixedly provided on the exterior of the sliding plate (49). An anti-theft plate (52) is slidably provided on the exterior of the sliding plate (49). A push plate (54) is fixedly connected to one end of the multi-stage electric telescopic rod (53), and the push plate (54) and the anti-theft plate (52) are fixedly connected. The anti-theft plate (52) is used to protect the door lock mechanism (3).

10. A front door for conveniently receiving items according to claim 1, characterized in that: The outside of the mail box (8) is provided with a mail receiving port, and the mail receiving port and the mail dropping port (10) are matched in position.

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