Anti-theft door for container

By installing embedded lock bodies on the inner and outer walls of the container's security door and concealing the communication lines, the issues of smart lock compatibility and aesthetics were resolved, achieving both thickness compatibility and a smooth appearance.

CN224260200UActive Publication Date: 2026-05-19WUHAN SHAOZHANGMEN TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHAN SHAOZHANGMEN TECH CO LTD
Filing Date
2025-07-03
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing smart door lock designs are not compatible with the thickness of the security door of the container, and their external protrusion affects aesthetics.

Method used

An inwardly extending groove is set on the inner and outer walls of the security door to embed the inner and outer lock bodies. The lock bodies are fixed by fastening bolts and snap-fitting. The communication line is hidden in the cavity, flush with the outer surface, and covered with a glass protective plate.

Benefits of technology

It achieves intelligent door lock adaptation to the thickness of container security doors, with a smooth appearance, improving both aesthetics and security.

✦ Generated by Eureka AI based on patent content.

Smart Images

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    Figure CN224260200U_ABST
Patent Text Reader

Abstract

The utility model provides a counter anti-theft door, which belongs to the field of anti-theft doors and comprises a door body defined by an outer side door wall and an inner side door wall, and a cavity is formed between the outer side door wall and the inner side door wall. The first lock body and the second lock body are respectively arranged on the outer side door wall and the inner side door wall; a first groove and a second groove are formed in the wall face of the outer side door wall and the wall face of the inner side door wall respectively, and both the first groove and the second groove protrude and extend into the cavity. The first lock body and the second lock body are arranged in the first groove and the second groove respectively, the outer surface of the first lock body and the outer surface of the second lock body are flush with the wall face of the outer side door wall and the inner side door wall, and a communication line between the first lock body and the second lock body is arranged in the cavity in a penetrating mode. The grooves extending towards the interior of the door body are formed in the inner door wall and the outer door wall of the anti-theft door, the inner door lock part and the outer door lock part are embedded in the grooves, the door lock is flush with the surface of the door body, the distance between the inner lock part and the outer lock part is shortened, the intelligent door lock can be matched with the thickness of the anti-theft door of the container, and the inner door lock and the outer door lock cannot obviously protrude outwards.
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Description

Technical Field

[0001] This utility model relates to the field of security door technology, and in particular to a container security door. Background Technology

[0002] Recently, a type of security door with a function for receiving goods or packages has appeared on the market and has become very popular. For example, Chinese patent CN215369515U discloses a security door with a package receiving and delivery function. It mainly consists of a box or cabinet for receiving goods installed on the security door, with the door of the box or cabinet nested inside the security door body. This type of security door is equipped with both a security door lock and a cabinet door lock to lock the security door itself and the cabinet door respectively. The cabinet door lock can be controlled by the homeowner's mobile phone, thus enabling the effective receipt of goods or packages. While ensuring security and theft prevention, it also allows for convenient and quick package receipt even when no one is home.

[0003] With the development of technology, modern security doors no longer simply use the old mechanical door locks, but instead use smart door locks with fingerprint or password unlocking methods. For example, Chinese patent CN107191071A discloses a smart security lock, door lock anti-theft system and its control method. The smart door lock requires the installation of intelligent electrical components on both the inside and outside of the security door. The two electrical components communicate with each other through a communication line running inside the security door to achieve signal transmission and control.

[0004] However, applying currently available smart door locks to container security doors presents two problems: First, because container security doors have concealed cabinets, their thickness is much greater than that of conventional security doors. For example, the thickness of a conventional security door is generally around 20mm, while the thickness of a container security door is around 30mm. This results in the communication wiring between internal and external components needing to be increased by 5 to 10mm. Current smart door locks are designed according to the specifications of conventional security doors and are not suitable for container security doors. Second, current smart door locks are all externally mounted on the door, protruding outwards from the door surface, so they do not make the thickness of the security door appear significantly increased. However, if a smart door lock is used externally on a container security door, it will make users feel that the already thick security door has increased significantly, affecting the overall aesthetics of the container security door. Utility Model Content

[0005] In view of this, this utility model proposes a container security door to solve the problems that current smart door locks are designed according to the specifications of conventional security doors and are not suitable for the thickness of container security doors, and that the external protrusion of smart door locks will make the container security door unsightly.

[0006] The technical solution of this utility model is implemented as follows: This utility model provides a container anti-theft door, including a door body, which is formed by an outer door wall and an inner door wall, and a cavity is formed between the two; a first lock body is disposed on the outer door wall; a second lock body is disposed on the inner door wall; wherein, a first groove and a second groove are respectively provided on the corresponding positions of the outer door wall and the inner door wall, and both the first groove and the second groove extend protruding into the cavity; the first lock body and the second lock body are respectively disposed in the first groove and the second groove, the outer surface of the first lock body is flush with the wall surface of the outer door wall, the outer surface of the second lock body is flush with the wall surface of the inner door wall, and a communication line is connected between the first lock body and the second lock body and the communication line passes through the cavity.

[0007] Based on the above technical solutions, preferably, the inner end faces of the first groove and the second groove are provided with windows, the windows are connected to the cavity, and the communication line between the first lock body and the second lock body passes through the window and is placed in the cavity.

[0008] More preferably, the window area is smaller than the area of ​​the inner end face of the first groove or the second groove, and the inner walls of the first lock body and the second lock body overlap on the edge of the window and restrict the first lock body and the second lock body from moving towards the cavity.

[0009] More preferably, bolt holes are provided around the window on the inner end face of the first groove, and the first lock body is fastened to the end face of the first lock body facing the cavity by fastening bolts passing through the bolt holes, so that the first lock body is locked in the first groove.

[0010] Based on the above technical solutions, preferably, bolt holes are formed around the second groove on the outer surface of the inner door wall, and a flange is formed around the outer edge of the second lock body. The second lock body is screwed into the bolt holes through the flange by fastening bolts, and the flange is pressed and fixed on the inner door wall, so that the second lock body is firmly installed in the second groove.

[0011] More preferably, a step is provided around the second groove on the outer surface of the inner door wall, and a groove is opened on the step. The flange is engaged in the step and the outer surface of the flange is flush with the wall surface of the inner door wall.

[0012] Based on the above technical solutions, preferably, it also includes a movable plate; a slot is provided on the outer peripheral wall of the second lock body; a movable cavity is also provided inside the inner door wall, the movable cavity is close to the edge of the second groove, one end of the movable cavity penetrates the outer surface of the inner door wall and the other end penetrates the inner peripheral wall of the second groove, and a protrusion is provided on the inner wall of the movable cavity near the second groove; the movable plate is disposed in the movable cavity, one end of the movable plate extends to the outside of the inner door wall and the other end is inserted into the second groove, a locking block is provided on the end of the movable plate inserted into the second groove, and the middle part of the movable plate abuts against the protrusion, so that the two ends of the movable plate tilt around the protrusion and the locking block is locked or disengaged from the slot.

[0013] More preferably, it also includes an elastic element, which is disposed on the side of the movable plate away from the second groove, and is disposed between the movable plate and the inner wall of the movable cavity, with its two ends respectively connected to the movable plate and the inner wall of the movable cavity.

[0014] More preferably, the inner door wall is provided with two sets of movable cavities, movable plates and elastic elements, which are respectively located at the top and bottom of the second groove.

[0015] Based on the above technical solutions, preferably, it also includes a glass guard plate, which is laid on the outer surface of the first lock body or the second lock body; wherein the outer surface of the glass guard plate protrudes from the wall surfaces of the outer door wall and the inner door wall.

[0016] The anti-theft door for a shipping container of this invention has the following advantages over existing technologies:

[0017] (1) This utility model provides grooves extending into the interior of the door body on the inner and outer walls of the anti-theft door, and embeds the inner and outer door lock components in the grooves so that the door lock is flush with the surface of the door body. This not only shortens the distance between the inner and outer lock components, but also enables the current smart door lock to adapt to the thickness of the anti-theft container door. Moreover, the inner and outer door locks will not protrude outwards significantly, so that they will not appear too heavy, greatly improving the appearance and aesthetics of the anti-theft container door.

[0018] (2) In this utility model, the first lock body located on the outside is fastened by the fastening bolt inside the cavity, which avoids the first lock body being removed from the outside, while the second lock body on the inside can be fastened by bolts or snapped to achieve the purpose of quick disassembly and assembly.

[0019] (3) The present invention provides a glass guard plate on the outer surface of the lock body, which makes the outer surface of the lock body smoother and more beautiful. At the same time, the glass guard plate protrudes slightly from the outer surface of the door wall, making it easier for users to find in the dark. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a perspective view of the anti-theft door for the container of this utility model;

[0022] Figure 2 This is a side view of the anti-theft door for the container of this utility model;

[0023] Figure 3 This is a front view of the anti-theft door for the container of this utility model;

[0024] Figure 4 This is a side sectional view of the anti-theft door for the container of this utility model;

[0025] Figure 5 This is a side sectional view of another embodiment of the anti-theft door for the container of this utility model;

[0026] Figure 6 For the present utility model Figure 5 Enlarged view of point A in the middle.

[0027] In the diagram: 1. Outer door wall; 101. Cavity; 102. First groove; 103. Window; 2. Inner door wall; 21. Protrusion; 201. Second groove; 202. Step; 203. Movable cavity; 3. First lock body; 4. Second lock body; 41. Flange; 401. Slot; 5. Movable plate; 51. Block; 6. Elastic element; 7. Glass guard plate. Detailed Implementation

[0028] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0029] like Figure 1 As shown, combined with Figure 2 and Figure 3 The present invention relates to a container security door, comprising a door body, a first lock body 3 and a second lock body 4.

[0030] The door body is formed by an outer door wall 1 and an inner door wall 2, creating a cavity 101 between them. The door body is not solid; it has a container door design and a lock mounting area. This area is essentially a shell formed by the outer door wall 1 and the inner door wall 2. A first groove 102 and a second groove 201 are respectively formed on corresponding positions on the outer door wall 1 and the inner door wall 2, both protruding into the cavity 101.

[0031] The first lock body 3 is mounted on the outer door wall 1; the second lock body 4 is mounted on the inner door wall 2. The first lock body 3 and the second lock body 4 are the inner and outer components of a commercially available smart lock, and are therefore typically box-shaped, housing electronic components such as control chips. The first lock body 3 and the second lock body 4 are respectively located in the first groove 102 and the second groove 201. The outer surface of the first lock body 3 is flush with the wall surface of the outer door wall 1, and the outer surface of the second lock body 4 is flush with the wall surface of the inner door wall 2. A communication cable connects the first lock body 3 and the second lock body 4, and the communication cable passes through the cavity 101. Generally, the thickness of a container security door is 30mm, and the thickness of a conventional security door is 20mm. Therefore, the length of the communication cable in a commercially available smart lock is also approximately 20mm. Thus, if the first lock body 3 and the second lock body 4 are directly installed on the outer walls of the outer door wall 1 and the inner door wall 2, the distance between the first lock body 3 and the second lock body 4 will be 30mm, making it impossible to install a commercially available smart lock. Therefore, in this embodiment, grooves are formed inside the inner and outer walls of the container security door. Both grooves protrude 5mm into the cavity 101 of the door body, reducing the distance between the first lock body 3 and the second lock body 4 by a total of 10mm, thus adapting to the installation specifications of conventional smart locks. Simultaneously, since the first lock body 3 and the second lock body 4 are respectively embedded in the inner and outer grooves, the inner and outer walls of the door body can be kept flat and without significant protrusions, resulting in a visually appealing container security door.

[0032] exist Figure 4 In a preferred embodiment shown, windows 103 are provided on the inner end faces of the first groove 102 and the second groove 201. The windows 103 are connected to the cavity 101. The end faces of the first lock body 3 and the second lock body 4 facing the cavity 101 have wire harness interfaces. The communication line between the first lock body 3 and the second lock body 4 passes through the window 103 and is inserted into the cavity 101. Generally, the installation steps are: first, the first lock body 3 is installed into the first groove 102, then the two ends of the communication line are connected to the back interfaces of the first lock body 3 and the second lock body 4 respectively, and then the second lock body 4 is installed into the second groove 201. The window 103 can provide clearance space for the communication line connection structure.

[0033] exist Figure 4 In a preferred embodiment shown, the area of ​​the window 103 is smaller than the area of ​​the inner end face of the first groove 102 or the second groove 201, so that the inner end face of the groove forms a frame. The inner walls of the first lock body 3 and the second lock body 4 overlap on the edge of the window 103, that is, the frame blocks the back surface of the lock body. Therefore, the movement of the first lock body 3 and the second lock body 4 toward the cavity 101 can be restricted, and the lock body is prevented from sinking into the groove and becoming difficult to disassemble and remove.

[0034] exist Figure 4In a preferred embodiment shown, bolt holes are provided around the window 103 on the inner end face of the first groove 102. The first lock body 3 is fastened to the end face of the first lock body 3 facing the cavity 101 by fastening bolts passing through the bolt holes, thereby locking the first lock body 3 within the first groove 102. Since the first groove 102 is located on the outside of the container security door, the first lock body 3 is also installed on the outside of the door. By inserting fastening bolts from inside the cavity 101 to fasten the first lock body 3 into the first groove 102, the first lock body 3 is prevented from exiting the first groove 102 from the outside of the door, and it also prevents people outside the door from removing the first lock body 3 from the first groove 102 from the outside, thus ensuring the security of the container security door.

[0035] exist Figure 4 In a preferred embodiment shown, the second lock body 4 can also be installed in the second groove 201 by bolt fastening. Specifically, bolt holes are formed around the second groove 201 on the outer surface of the inner door wall 2, and a flange 41 is provided around the outer edge of the second lock body 4. The second lock body 4 is screwed into the bolt holes through the flange 41 by fastening bolts, which press and fix the flange 41 to the inner door wall 2, thus securing the second lock body 4 in the second groove 201. Since the second lock body 3 is located inside the door, there is no need to consider the risk that external personnel may damage or remove the second lock body 3.

[0036] exist Figure 4 In a preferred embodiment shown, a step 202 is provided around the second groove 201 on the outer surface of the inner door wall 2. The groove is provided on the step 202, and the flange 41 is engaged in the step 202 and the outer surface of the flange 41 is flush with the wall surface of the inner door wall 2. This ensures that after the second lock body 4 is installed on the inner door wall 2, the wall surface of the inner door wall 2 can remain flat and without protrusions.

[0037] exist Figure 6 In one preferred embodiment shown, in addition to using bolts to fasten the second lock body 4, a snap-fit ​​method can also be used to achieve a detachable installation of the second lock body 4 within the second groove 201. Specifically, this embodiment also includes a movable plate 5.

[0038] The second lock body 4 has a slot 401 on its outer peripheral wall; the inner door wall 2 also has a movable cavity 203, which is close to the edge of the second groove 201. One end of the movable cavity 203 penetrates the outer surface of the inner door wall 2 and the other end penetrates the inner peripheral wall of the second groove 201. A protrusion 21 is provided on the inner wall of the movable cavity 203 near the second groove 201. The movable plate 5 is disposed in the movable cavity 203. One end of the movable plate 5 extends to the outside of the inner door wall 2 and the other end is inserted into the second groove 201. A locking block 51 is provided on the end of the movable plate 5 inserted into the second groove 201. The middle part of the movable plate 5 abuts against the protrusion 21, so that the two ends of the movable plate 5 tilt around the protrusion 21 and the locking block 51 is locked or disengaged from the slot 401. When the second lock body 4 is securely installed in the second groove 201, the inner end of the movable plate 5 is pressed down, causing the locking block 51 to be locked in the slot 401, preventing the second lock body 4 from exiting the second groove 201. When it is necessary to remove the second lock body 4 from the second groove 201, first press the movable plate 5 downward from the outer end of the movable cavity 203. This will cause the movable plate 5 to rotate around the protrusion 21 and raise the inner end of the movable plate 5. At this time, the locking block will disengage from the slot 401 as the inner end of the movable plate 5 is raised, thus allowing the second lock body 4 to be removed. The second lock body 4 can be moved out of the second groove 201 without restriction; when the second lock body 4 is reinstalled, it is pushed from outside the door toward the cavity 101. The second lock body 4 slides into the second groove 201, which will simultaneously push the locking block 51 to move upward. After the second lock body 4 has moved a certain distance, the locking groove 401 of the second lock body 4 is aligned with the inner end of the movable cavity 203. The locking block 51 falls back into the locking groove 501 under its own weight, restricting the movement of the second lock body 4 in the second groove 201.

[0039] exist Figure 6 In a preferred embodiment shown, an elastic element 6 is also included. The elastic element 6 can be a spring. The elastic element 6 is disposed on the side of the movable plate 5 away from the second groove 201. The elastic element 6 is disposed between the movable plate 5 and the inner wall of the movable cavity 203, and its two ends are respectively connected to the movable plate 5 and the inner wall of the movable cavity 203. The function of the elastic element 6 is to drive the movable plate 5 to move and reset.

[0040] exist Figure 5 In a preferred embodiment shown, the inner door wall 2 is provided with two sets of movable cavities 203, movable plates 5, and elastic elements 6. The two sets of movable cavities 203, movable plates 5, and elastic elements 6 are respectively provided at the top and bottom of the second groove 201, which can lock the second lock body 4 from the upper and lower sides. In addition, two sets of movable cavities 203, movable plates 5, and elastic elements 6 can be symmetrically arranged on both sides of the second groove 201 to further improve the installation stability of the second lock body 4.

[0041] exist Figure 4In a preferred embodiment, the lock further includes a glass guard plate 7, which is laid on the outer surface of the first lock body 3 or the second lock body 4. The outer surface of the glass guard plate 7 protrudes beyond the walls of the outer door wall 1 and the inner door wall 2. The glass guard plate 7 on the outer surface of the lock body makes the outer surface smoother and more aesthetically pleasing. Simultaneously, the slight protrusion of the glass guard plate 7 from the outer surface of the door wall facilitates its placement by the user in dark environments. The outer edges of the glass guard plate 7 can be rounded to prevent scratches to the hands.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A container security door, characterized in that, include: The door body is formed by the outer door wall (1) and the inner door wall (2), and a cavity (101) is formed between the two. The first lock body (3) is installed on the outer door wall (1); The second lock body (4) is installed on the inner door wall (2); Among them, the outer door wall (1) and the inner door wall (2) are respectively provided with a first groove (102) and a second groove (201) at corresponding positions on the wall surface, and the first groove (102) and the second groove (201) both protrude into the cavity (101); The first lock body (3) and the second lock body (4) are respectively disposed in the first groove (102) and the second groove (201). The outer surface of the first lock body (3) is flush with the wall surface of the outer door wall (1), and the outer surface of the second lock body (4) is flush with the wall surface of the inner door wall (2). A communication line is connected between the first lock body (3) and the second lock body (4) and the communication line passes through the cavity (101).

2. The anti-theft door for a shipping container according to claim 1, characterized in that: The inner end face of the first groove (102) and the second groove (201) is provided with a window (103). The window (103) is connected to the cavity (101). The communication line between the first lock body (3) and the second lock body (4) passes through the window (103) and is placed inside the cavity (101).

3. A container security door according to claim 2, characterized in that: The area of ​​the window (103) is smaller than the area of ​​the inner end face of the first groove (102) or the second groove (201). The inner walls of the first lock body (3) and the second lock body (4) overlap on the edge of the window (103) and restrict the first lock body (3) and the second lock body (4) from moving toward the cavity (101).

4. A container security door according to claim 2, characterized in that: Bolt holes are provided around the window (103) on the inner end face of the first groove (102). The first lock body (3) is fastened to the end face of the first lock body (3) facing the cavity (101) by fastening bolts passing through the bolt holes, so that the first lock body (3) is locked in the first groove (102).

5. A container security door according to claim 1, characterized in that: Bolt holes are provided around the second groove (201) on the outer surface of the inner door wall (2). A flange (41) is provided around the outer edge of the second lock body (4). The second lock body (4) is screwed into the bolt hole through the flange (41) by fastening bolts and the flange (41) is pressed and fixed on the inner door wall (2), so that the second lock body (4) is firmly installed in the second groove (201).

6. A container security door according to claim 5, characterized in that: A step (202) is provided around the second groove (201) on the outer surface of the inner door wall (2). The groove is provided on the step (202). The flange (41) is engaged in the step (202) and the outer surface of the flange (41) is flush with the wall surface of the inner door wall (2).

7. A container security door according to claim 1, characterized in that: It also includes the activity board (5); The second lock body (4) has a slot (401) on its outer peripheral wall; The inner door wall (2) is also provided with a movable cavity (203). The movable cavity (203) is close to the edge of the second groove (201). One end of the movable cavity (203) penetrates the outer surface of the inner door wall (2) and the other end penetrates the inner peripheral wall of the second groove (201). A protrusion (21) is provided on the inner wall of the movable cavity (203) close to the second groove (201). The movable plate (5) is set in the movable cavity (203). One end of the movable plate (5) extends to the outside of the inner door wall (2) and the other end is inserted into the second groove (201). A locking block (51) is provided on the end of the movable plate (5) inserted into the second groove (201). The middle part of the movable plate (5) abuts against the protrusion (21), so that the two ends of the movable plate (5) move around the protrusion (21) and the locking block (51) is locked or disengaged from the slot (401).

8. A container security door according to claim 7, characterized in that: It also includes an elastic element (6), which is disposed on the side of the movable plate (5) away from the second groove (201). The elastic element (6) is disposed between the movable plate (5) and the inner wall of the movable cavity (203) and its two ends are respectively connected to the inner wall of the movable plate (5) and the inner wall of the movable cavity (203).

9. A container security door according to claim 8, characterized in that: The inner door wall (2) is provided with two sets of movable cavities (203), movable plates (5) and elastic elements (6), and the two sets of movable cavities (203), movable plates (5) and elastic elements (6) are respectively located at the top and bottom of the second groove (201).

10. A container security door according to claim 1, characterized in that, Also includes: A glass protective plate (7) is laid on the outer surface of the first lock body (3) or the second lock body (4); The outer surface of the glass panel (7) protrudes from the walls of the outer door wall (1) and the inner door wall (2).