Electronic seal for lockset on container door

Abstract

The invention relates to an electronic seal for a lock on a container door, and relates to the technical field of electronic seals. The electronic seal for the lockset on the container door comprises a device body, a trigger mechanism and a sealing mechanism are further arranged in the device body, the trigger mechanism comprises a trigger frame, a reset piece and a trigger switch, one end of the trigger frame is rotationally connected with the device body, and the other end of the trigger frame is used for abutting against a lock body of the lockset on the door. The trigger switch is located on the side, away from the lock body, of the trigger frame, the reset piece is used for enabling the trigger frame to return to the initial position after the lock body moves and enabling the trigger frame to abut against the trigger switch, and the trigger switch is used for switching on an induction circuit in the device body after abutting against the trigger frame. And after the identification is successful, the closing mechanism relieves the limit to the lock body of the lockset. The electronic seal has the effect of prolonging the single-time use time of the battery on the electronic seal.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic seals, in particular to an electronic seal for a container door lock. BACKGROUND

[0002] As the core carrier of global logistics transportation, containers bear about 90% of global sea freight volume. In the container transportation process, it is crucial to ensure the safety of goods in the container and to clarify the responsibility of transportation. Therefore, containers usually need to be equipped with a container seal, which serves as a physical voucher and an important basis for determining whether illegal opening, cargo theft or smuggling has occurred in the logistics link.

[0003] With regard to the above related technologies, since the transportation and storage requirements of existing containers are generally several months or even several years, the electronic seal in the prior art generally causes the sensing circuit inside itself to be in a continuous or intermittent power-on state in order to achieve real-time monitoring, which increases the power consumption of the sensing circuit, thereby reducing the single use time of the battery on the electronic seal, and thus needs to be improved. SUMMARY

[0004] In order to increase the single use time of the battery on the electronic seal, the present application provides an electronic seal for a container door lock.

[0005] The electronic seal for a container door lock provided by the present application adopts the following technical solution: An electronic seal for a container door lock, comprising a device body, a triggering mechanism and a closing mechanism are further arranged in the device body, the triggering mechanism comprises a triggering frame, a reset member and a triggering switch, one end of the triggering frame is rotatably connected with the device body, and the other end is used for abutting against a lock body of a door lock, the triggering switch is located on the side of the triggering frame away from the lock body of the lock, the reset member is used for returning the triggering frame to the initial position after the displacement of the lock body, and the triggering frame abuts against the triggering switch, the triggering switch is used for connecting the sensing circuit in the device body after abutting against the triggering frame, and the closing mechanism is used for releasing the limiting of the lock body after successful identification.

[0006] Compared with the prior art, in order to realize real-time monitoring, the inductive circuit in the electronic seal is in a continuous or intermittent power-on state, thereby increasing the power consumption of the inductive circuit and reducing the single use time of the electronic seal battery. The trigger mechanism and the closing mechanism are arranged in the application, so that after the lock body on the lockset is displaced, the trigger frame can be rotated under the elastic force of the reset member, thereby making the trigger frame abut against the trigger switch, making the trigger switch connect the inductive circuit in the device body, and after successful identification, the closing mechanism releases the limiting of the lock body of the lockset. Compared with the prior art in which the inductive circuit is in a continuous or intermittent power-on state, the inductive circuit in the application is only in a working state when the lock body on the lockset is in an unlocked state, and thus the power consumption of the inductive circuit is effectively reduced, thereby increasing the single use time of the electronic seal battery.

[0007] Preferably, an opening is formed in the device body for the lock body to pass through, the closing mechanism comprises a driving member, two limiting assemblies and two closing frames, the closing frames are respectively located on opposite sides of the opening of the device body, and one end of each closing frame is rotatably connected to the device body, and the other end of each closing frame is arranged close to each other to close the opening of the device body, and the driving member is electrically connected to the inductive circuit in the device body and is used to drive the limiting assemblies to release the limiting of the corresponding closing frames, so that the closing frames can be rotated after abutting against the lock body.

[0008] By arranging the closing mechanism, when the trigger switch in the device body is triggered by the trigger frame, the inductive circuit in the trigger switch is connected, the driving member can drive the limiting assemblies to release the limiting of the corresponding closing frames, so that the closing frames can be rotated by the lock body, thereby releasing the limiting of the lock body. When the lock body rotates, the closing frame is driven to rotate together by abutting, so that the cabinet door can be smoothly opened. Compared with the prior art in which the driving member drives the closing frame to actively rotate or move, the application effectively reduces the stroke or angle required by the driving member, thereby reducing the size and space required by the driving member, thereby realizing the lightweight setting of the electronic seal of the application and ensuring the use effect of the application.

[0009] Preferably, the limiting assembly comprises a limiting frame and an unlocking member, the limiting frame is rotatably connected to the device body, one end of the limiting frame is located on the displacement path of the corresponding closing frame away from the other closing frame, and the driving member is used to release the limiting of the rotation of the limiting frame through the unlocking member.

[0010] By adopting the above technical scheme, the limiting assembly is arranged, so that when the inductive circuit fails to identify, the limiting frame can be located on the rotating path of the closing frame, and the rotation of the closing frame can be limited by abutting, thereby achieving the closing of the opening on the device body, and when the inductive circuit identifies successfully, the driving member can release the limiting of the rotation of the limiting frame through the unlocking member, so that the limiting frame can rotate under the abutting action of the closing frame, thereby enabling the closing frame to rotate smoothly, achieving the unlocking of the closing frame, and effectively ensuring the locking and unlocking effect of the box door.

[0011] Preferably, the unlocking member comprises an unlocking frame, and a locking portion is further arranged on the unlocking frame, the locking portion is located on the rotating path of the limiting frame, the unlocking frame is in sliding connection with the device body, and the driving member is used to drive the sliding of the unlocking frame, so that the locking portion is away from the limiting frame.

[0012] By adopting the above technical scheme, the locking portion on the unlocking frame can be located on the rotating path of the limiting frame, so as to limit the rotation of the limiting frame, thereby achieving the limiting of the rotation of the closing frame, effectively ensuring the limiting effect of the closing frame, and at the same time, the unlocking frame and the limiting frame can be located in the device body, reducing the probability of opening the closed opening by unscrupulous persons, and even when the driving member fails, the state of the unlocking frame can limit the rotation of the limiting frame, thereby continuing to limit the closing frame, maintaining the limiting effect of the lock of the present application, compared with the prior art scheme of directly driving the displacement of the closing frame, effectively reducing the probability of opening the box door by unscrupulous persons by interfering with the work of the driving member, and ensuring the limiting effect of the lock of the present application.

[0013] Preferably, the closing frame is further provided with an abutting frame away from the side of the trigger frame, and the abutting frame is located on the displacement path of the lock body after being unlocked on the lock.

[0014] By adopting the above technical scheme, the abutting frame can be located on the displacement path of the lock body after being unlocked on the lock, so that the abutting frame can limit the lock body by abutting with the lock body, so that when the inductive circuit fails to identify, even if the lock body is in the unlocked state, the box door is difficult to open, and the limiting effect of the lock of the present application is effectively ensured.

[0015] Preferably, one end of the abutting frame extends into the closing frame and is in sliding connection with the closing frame, and a driving mechanism is further arranged on the closing frame, and the closing frame is used to drive the abutting frame to slide when rotating, so as to retract into the closing frame.

[0016] By adopting the above technical scheme, the driving mechanism and the abutting frame are arranged, so that when the closing frame rotates after abutting against the lock body, the driving mechanism can drive the abutting frame to slide, so that the abutting frame gradually retracts into the closing frame, so that the abutting frame can gradually cancel the abutting against the lock body, thereby reducing the wear between the abutting frame and the lock body when abutting, thereby ensuring the service life of the abutting frame and the lock body.

[0017] Preferably, the driving mechanism comprises a driving frame, a transmission frame and a linkage, the driving frame is in sliding connection with the closing frame, and the sliding direction is different from the sliding direction of the abutting frame, one end of the transmission frame is in rotary connection with the driving frame, and the other end is in rotary connection with the abutting frame, and the closing frame drives the driving frame to slide through the linkage.

[0018] By adopting the above technical scheme, the driving mechanism is arranged, so that after the closing frame rotates, the closing frame can drive the driving frame to slide through the linkage, and then the driving frame drives the abutting frame to slide through the transmission frame, thereby realizing the linkage between the closing frame and the driving frame, effectively replacing the scheme of driving the abutting frame to slide through the driving device, saving the space required for setting, and compared with the scheme of directly driving the abutting frame to slide through the linkage, the scheme of driving the abutting frame to slide through the driving frame through the linkage in the application makes the closing frame, the linkage and the driving frame, and the driving frame, the transmission frame and the abutting frame only need to realize transmission in one plane, effectively ensuring the effect and stability of driving the abutting frame.

[0019] Preferably, the linkage comprises a linkage frame, one end of the linkage frame is in rotary connection with the driving frame, and the other end is in rotary connection with the device body.

[0020] By adopting the above technical scheme, the linkage frame is arranged, so that when the closing frame rotates, the closing frame can drive the linkage frame to rotate relative to itself, thereby smoothly driving the driving frame to slide, effectively realizing the linkage between the closing frame and the driving frame, and ensuring the stability of transmission.

[0021] Preferably, the limiting frame further extends a abutting portion, the abutting portion is located on the side of the closing frame away from the locking portion, the closing frame is located on the rotation path of the abutting portion rotating with the limiting frame, and the closing mechanism further comprises a driving member, and the unlocking frame is used to drive the limiting frame to rotate through the driving member when the limiting frame is away from the limiting frame.

[0022] By adopting the above technical scheme, when the door body of the container needs to be closed again after being opened, the driving member can drive the unlocking frame to slide reversely, so that the unlocking frame can drive the limiting frame to rotate through the unlocking assembly, so that the abutting portion on the limiting frame abuts against the closing frame, and the closing frame is pushed to slide, so that the lock body on the door can smoothly enter the opening of the device body, thereby facilitating the relevant personnel to close the door again, and at the same time, when the driving member drives the unlocking frame to slide forwardly, the limiting frame can maintain its state, the probability of interference and influence between the unlocking frame and the limiting frame is reduced, and the smooth opening of the closing frame is ensured.

[0023] Preferably, the limiting frame further extends an inclined portion away from the closing frame, the inclined portion is outwardly inclined away from the closing frame, and the driving member comprises a driving frame, one end of the driving frame is connected with the unlocking frame, and the outwardly inclined side of the extending portion is located on the displacement path of the other end of the driving frame.

[0024] By adopting the above technical scheme, when the driving member drives the unlocking frame to slide away from the limiting frame, the driving frame on the unlocking frame can abut against the inclined portion on the limiting frame, so that the limiting frame is pushed to rotate, and then the abutting portion on the limiting frame pushes the closing frame to rotate, thereby achieving the driving of the rotation of the closing frame.

[0025] In summary, the present application has at least one of the following beneficial technical effects: 1. By arranging the trigger mechanism and the closing mechanism, when the lock body on the lock is displaced, the trigger frame can be rotated under the elastic force of the reset member, so that the trigger frame abuts against the trigger switch, the trigger switch is connected to the inductive circuit in the device body, and after successful identification, the closing mechanism releases the limiting of the lock body of the lock, compared with the existing technology in which the inductive circuit is in a continuous or intermittent power-on state, the inductive circuit in the present application only works when the lock body on the lock is in an unlocked state, and only then consumes the power of the electronic sealing battery, thereby effectively reducing the power consumption of the inductive circuit, thereby increasing the single use time of the electronic sealing battery. 2. The setting of the closing mechanism is such that when the trigger switch in the device body is triggered by the trigger frame, the induction circuit in the trigger switch is turned on, and the driving member can drive the limiting component to release the limiting of the corresponding closing frame, so that the closing frame can be driven to rotate by the lock body, thereby releasing the limiting of the lock body, so that the lock body can rotate and drive the closing frame to rotate by abutting, so that the box door can be smoothly opened. Compared with the prior art, the driving member actively rotates or moves the closing frame. The application effectively reduces the stroke or angle required by the driving member, thereby reducing the size and space required by the driving member, thereby realizing the lightweight setting of the electronic seal of the application, and ensuring the use effect of the application. 3. The setting of the driving mechanism and the abutting frame is such that when the closing frame rotates after abutting with the lock body, the abutting frame can be driven to slide by the driving mechanism, so that the abutting frame gradually retracts into the closing frame, so that the abutting frame can gradually cancel the abutment with the lock body, thereby reducing the wear between the abutting frame and the lock body when abutting, thereby ensuring the service life of the abutting frame and the lock body. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a schematic diagram of the electronic seal of the container door lock of the embodiment 1 of the application.

[0027] Figure 2 is a structural schematic diagram of the limiting component in the embodiment 1 of the application.

[0028] Figure 3 is a structural schematic diagram of the trigger switch in the embodiment 1 of the application.

[0029] Figure 4 is a structural schematic diagram of the limiting frame in the embodiment 2 of the application.

[0030] Figure 5 is a structural schematic diagram of the inclined part in the embodiment 2 of the application.

[0031] Figure 6 is a structural schematic diagram of the transmission frame in the embodiment 2 of the application.

[0032] Explanation of reference numerals in the attached drawings: 1. Device body; 2. Triggering mechanism; 21. Trigger frame; 211. Switch part; 22. Reset part; 23. Trigger switch; 3. Closing mechanism; 31. Driving part; 32. Limiting component; 321. Limiting frame; 3211. Limiting part; 3212. Abutting part; 3213. Inclined part; 322. Unlocking part; 3221. Unlocking frame; 33. Closing frame; 331. Extension part; 34. Driving part; 341. Driving frame; 3411. Driving part; 4. Locking part; 5. Abutting frame; 6. Driving mechanism; 61. Driving frame; 62. Transmission frame; 63. Linkage part; 631. Linkage frame. Detailed Implementation

[0033] The following is in conjunction with the appendix Figures 1-6 This application will be described in further detail.

[0034] Example 1: Embodiment 1 of this application discloses an electronic sealing device for a lock on a container door. (See also...) Figure 1 and Figure 2 The electronic sealing mechanism for container door locks includes a device body 1, which also contains a triggering mechanism 2 and a sealing mechanism 3. The triggering mechanism 2 includes a trigger frame 21, a reset component 22, and a trigger switch 23. One end of the trigger frame 21 is rotatably connected to the device body 1, and the other end abuts against the lock body of the door lock. The trigger switch 23 is located on the side of the trigger frame 21 furthest from the lock body. The reset component 22 returns the trigger frame 21 to its initial position after the lock body is displaced, causing the trigger frame 21 to abut against the trigger switch 23. After abutting against the trigger frame 21, the trigger switch 23 activates the sensing circuit within the device body 1, and upon successful identification, causes the sealing mechanism 3 to release the lock body from its limiting position.

[0035] Reference Figure 1 and Figure 2 An opening is provided on one side wall of the device body 1, and the opening extends to another adjacent side wall and communicates with the outside. The trigger frame 21 is located inside the opening, and one end is rotatably connected to the device body 1 via a pin. In this embodiment, the reset member 22 is a torsion spring, which is sleeved on the pin for rotatably connecting the trigger frame 21, with one end abutting against the trigger frame 21 and the other end abutting against the device body 1, so that the trigger frame 21 can be returned to its initial position by its own elastic force.

[0036] Reference Figure 2 and Figure 3In this embodiment, the lock body can specifically be a latch (not shown in the figure). One end of the latch extends out of the lock and abuts against the side wall of the trigger frame 21, thereby pushing the trigger frame 21 to rotate against the elastic force of the torsion spring. A switch part 211 is also provided on one end of the trigger frame 21, and the switch part 211 is integrally formed with the trigger frame 21.

[0037] Reference Figure 2 and Figure 3 In this embodiment, the trigger switch 23 is configured as a contact mechanical switch. This contact mechanical switch is mounted on the sensing circuit, and the button for connecting the circuit protrudes from the switch and is located on the rotation path of the switch portion 211. This allows the contacts to close after the button receives a contact action. This contact mechanical switch is prior art, and the control of the connection of the sensing circuit is also prior art, so it will not be described again. The contact mechanical switch is fixedly installed inside the opening of the device body 1 and is located on the side of the trigger frame 21 away from the latch, thus ensuring that the switch button on the contact mechanical switch is located on the rotation path of the switch portion 211.

[0038] Reference Figure 1 and Figure 2 The closing mechanism 3 includes a drive member 31, two limiting components 32, and two closing frames 33. In this embodiment, the drive member 31 is configured as an electric telescopic rod, which is fixedly installed inside the device body 1 and located on opposite sides of the trigger frame 21. The piston rod of each electric telescopic rod extends away from the trigger frame 21, and each electric telescopic rod is connected to the power supply circuit of the device body 1 and is controlled by the control element inside the device body 1 together with the sensing circuit. The connection of the electric telescopic rod to the power supply circuit and its control by the control element together with the sensing circuit are existing technologies and will not be described in detail here.

[0039] Reference Figure 2 Each limiting component 32 includes a limiting frame 321 and an unlocking component 322. Each unlocking component 322 includes an unlocking frame 3221, and each unlocking frame 3221 is fixedly connected to the piston rod of the corresponding electric telescopic rod. In this embodiment, a pressure spring is sleeved on the piston rod of each electric telescopic rod. One end of the pressure spring abuts against the corresponding unlocking frame 3221, and the other end abuts against the end of the electric telescopic rod, so that the unlocking frame 3221 remains away from the electric telescopic rod body.

[0040] Reference Figure 2Each unlocking bracket 3221 is slidably connected to the device body 1 via a slide rail, and the sliding direction is the same as the movement direction of the electric telescopic rod piston rod. A locking part 4 extends from the end of the unlocking bracket 3221 away from the electric telescopic rod, and the locking part 4 is integrally formed with the unlocking bracket 3221. The middle part of each limiting bracket 321 is rotatably connected to the device body 1 via a pin, and one end extends to the side of the locking part 4 near the electric telescopic rod, so that the locking part 4 is located on the rotation path of that end of the limiting bracket 321.

[0041] Reference Figure 2 Each limiting frame 321 has a limiting portion 3211 extending from the end away from the unlocking frame 3221. Each limiting portion 3211 is integrally formed with the corresponding limiting frame 321. Each limiting portion 3211 is located on the side of the corresponding closing frame 33 closest to the corresponding electric telescopic rod. Each limiting frame 321 has an abutment portion 3212 at the end away from the unlocking frame 3221. Each abutment portion 3212 is located on the side of the limiting frame 321 away from the closing frame 33 and is integrally formed with the limiting frame 321.

[0042] Reference Figure 2 Each closing frame 33 is located on the side of the device body 1 away from the trigger frame 21, thus placing the closing frame 33 on the side of the locking tongue away from the trigger frame 21. Each closing frame 33 is rotatably connected to the device body 1 via a pin. Each closing frame 33 has an extension portion 331 extending towards the corresponding limiting frame 321. The extension portion 331 is integrally formed with the closing frame 33, and its end extends between the upper limiting portion 3211 and the abutment portion 3212 of the corresponding limiting frame 321, such that the limiting portion 3211 and the abutment portion 3212 are both located on the rotation path of the extension portion 331.

[0043] Reference Figure 2 Each closing frame 33 extends towards another closing frame 33 at its end, and they are close to each other to close the opening end of the closing frame 33, thereby positioning it on the displacement path of the lock tongue and limiting the rotation of the lock and the door. In this embodiment, each closing frame 33 is provided with an arc surface to match the shape of the end of the lock tongue.

[0044] Reference Figure 2 Each enclosure 33 has an abutment 5 at its end. Each abutment 5 is located on the side of the corresponding enclosure 33 away from the trigger frame 21 and is integrally formed with the corresponding enclosure 33. Each abutment 5 is located on the displacement path of the rear end of the lock tongue (i.e., the end that is still exposed outside the lock when the lock tongue is retracted into the lock), so that even if the lock tongue rotates, the abutment 5 can limit the lock tongue and thus prevent the door from rotating.

[0045] ReferenceFigure 2 In this embodiment of the application, each enclosure 33 is provided with a torsion spring. Each torsion spring is sleeved on a pin for rotating the enclosure 33, with one end abutting against the enclosure 33 and the other end abutting against the device body 1, so that the enclosure 33 can return to its initial position under the elastic force of the torsion spring.

[0046] Reference Figure 2 In this embodiment, each limiting frame 321 has an opening on the side away from the corresponding electric telescopic rod, so that one end of the pressure spring can be inserted. The other end of the pressure spring extends out of the opening and abuts against the inner wall of the device body 1. Thus, after the unlocking frame 3221 releases the lock on the limiting frame 321, the pressure spring can use its own elasticity to make the limiting frame 321 rotate, so that the abutment frame 5 pushes the closing frame 33 to rotate slightly.

[0047] The implementation principle of the electronic sealing device for a container door lock in Embodiment 1 of this application is as follows: When the latch rotates, it releases the limiting position on the trigger frame 21. At this time, the trigger frame 21 rotates under the elastic force of the reset member 22, causing the switch part 211 on the trigger frame 21 to abut against the button on the trigger switch 23, thereby activating the sensing circuit. When the sensing circuit successfully recognizes the device, the control element in the device body 1 controls the electric telescopic rod to slide the unlocking frame 3221 towards the closing frame 33, so that the locking part 4 on the unlocking frame 3221 is no longer located on the rotation path of the end of the limiting frame 321. At this time, the limiting frame 321 and the trigger frame 21 are in the unlocked state. Afterwards, relevant personnel can rotate the container door, and the end of the latch on the container door lock abuts against the abutment frame 5, thereby pushing the closing frame 33 to rotate, making room for the latch, so that the container door can be opened smoothly.

[0048] Example 2: The difference between Embodiment 2 and Embodiment 1 in this application is that: (Refer to...) Figure 4 and Figure 5 The closing mechanism 3 also includes a driving member 34, which includes a driving frame 341. One end of the driving frame 341 is integrally formed with the corresponding unlocking frame 3221, and the other end extends towards the side closer to the corresponding closing frame 33. The end of the driving frame 341 away from the unlocking frame 3221 is also provided with a driving part 3411, which is integrally formed with the driving frame 341.

[0049] Reference Figure 4 and Figure 5The limiting frame 321 extends an inclined portion 3213 on the side near the corresponding electric telescopic rod. Each inclined portion 3213 is inclined at the end away from the corresponding enclosure frame 33 towards the side near the corresponding electric telescopic rod to form an inclined guide surface. The sidewall of the inclined portion 3213 is located on the sliding path of the corresponding driving part 3411 when it slides away from the corresponding electric telescopic rod, so that the limiting frame 321 is driven to rotate during the process of the driving part 3411 abutting against the inclined portion 3213.

[0050] Reference Figure 4 and Figure 5 Each limiting frame 321 has an abutment portion 3212 extending towards the corresponding closing frame 33, and the side of each closing frame 33 near the electric telescopic rod is located on the rotation path of the abutment portion 3212 on the corresponding limiting frame 321, so that when each limiting frame 321 rotates, the abutment portion 3212 can abut against the closing frame 33, thereby pushing the closing frame 33 to rotate.

[0051] Reference Figure 4 , Figure 5 and Figure 6 One end of the abutment frame 5 extends into the enclosure frame 33 and is slidably connected to the enclosure frame 33, with the sliding direction being the thickness direction of the corresponding enclosure frame 33. Each enclosure frame 33 is also provided with a drive mechanism 6, each drive mechanism 6 including a drive frame 61, a transmission frame 62, and a linkage member 63, each linkage member 63 including a linkage frame 631. One end of each linkage frame 631 is rotatably connected to the corresponding mounting frame via a pin, and the other end is rotatably connected to the corresponding drive frame 61 via a pin.

[0052] Reference Figure 5 and Figure 6 Each drive frame 61 is located within a corresponding enclosed frame 33 and is slidably connected to the corresponding enclosed frame 33 via a sliding groove, with the sliding direction set to the width direction of the enclosed frame 33. One end of each transmission frame 62 is rotatably connected to the corresponding drive frame 61 via a pin, and the other end is inclined and rotatably connected to the end of the corresponding abutment frame 5 extending into the enclosed frame 33 via a pin.

[0053] Reference Figure 4 , Figure 5 and Figure 6 In the initial state, when the locking part 4 on the unlocking frame 3221 is located on the rotation path of the end of the limiting frame 321, the unlocking frame 3221 is located in the middle of its own sliding path. At this time, the end of the abutment frame 5 extends out of the closing frame 33, and the closing frame 33 is in a closed state of the opening on the device body 1.

[0054] Reference Figure 4 , Figure 5 and Figure 6When the door needs to be closed again, the drive unit 31 drives the unlocking bracket 3221 to gradually move away from the limiting bracket 321. At this time, the unlocking bracket 3221 drives the drive bracket 341 to slide together, causing the drive part 3411 on the drive bracket 341 to abut against the side wall of the inclined part 3213 on the limiting bracket 321, thereby pushing the limiting bracket 321 to rotate. During this process, the abutting part 3212 on the limiting bracket 321 abuts against the end of the corresponding closing bracket 33, thereby pushing the closing bracket 33 to rotate. During this process, the extension part 331 on the closing bracket 33 gradually disengages from the space between the limiting part 3211 and the abutting part 3212.

[0055] Reference Figure 4 , Figure 5 and Figure 6 During this process, the closing frame 33 rotates, which in turn causes the linkage frame 631 to rotate. The linkage frame 631 then causes the drive frame 61 to slide relative to the closing frame 33. At this time, the drive frame 61 drives the abutment frame 5 to rotate through the transmission frame 62, causing the closing frame 33 to gradually retract into itself and no longer be located on the rotation path of the latch. This facilitates the latch on the lock door to enter between the trigger frame 21 and the closing frame 33, thus achieving re-closing.

[0056] The implementation principle of the electronic sealing device for a container door lock in Embodiment 2 of this application is as follows: When the container door needs to be closed again, the drive member 31 drives the unlocking frame 3221 to gradually move away from the limiting frame 321. At this time, the unlocking frame 3221 drives the drive frame 341 to slide together, causing the drive part 3411 on the drive frame 341 to abut against the side wall of the inclined part 3213 on the limiting frame 321, thereby pushing the limiting frame 321 to rotate. During this process, the abutting part 3212 on the limiting frame 321 abuts against the end of the corresponding closing frame 33, thereby pushing the closing frame 33 to rotate. During this process, the extension part 331 on the closing frame 33 gradually disengages from the space between the limiting part 3211 and the abutting part 3212.

[0057] During this process, the closing frame 33 rotates, which in turn causes the linkage frame 631 to rotate. The linkage frame 631 then causes the drive frame 61 to slide relative to the closing frame 33. At this time, the drive frame 61 drives the abutment frame 5 to rotate via the transmission frame 62, causing the closing frame 33 to gradually retract into itself and no longer be located on the rotation path of the latch. This facilitates the latch on the lock door to enter between the trigger frame 21 and the closing frame 33, thus achieving re-closing.

[0058] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An electronic sealing device for a lock on a container door, comprising a device body (1), characterized in that: The device body (1) is also provided with a triggering mechanism (2) and a closing mechanism (3). The triggering mechanism (2) includes a trigger frame (21), a reset member (22) and a trigger switch (23). One end of the trigger frame (21) is rotatably connected to the device body (1), and the other end is used to abut against the lock body of the door lock. The trigger switch (23) is located on the side of the trigger frame (21) away from the lock body. The reset member (22) is used to allow the trigger frame (21) to return to the initial position after the lock body is displaced, and to make the trigger frame (21) abut against the trigger switch (23). The trigger switch (23) is used to connect the sensing circuit in the device body (1) after abutting against the trigger frame (21), and to make the closing mechanism (3) release the restriction on the lock body after successful recognition.

2. The electronic sealing device for a container door lock according to claim 1, characterized in that: The device body (1) has an opening for the lock body to pass through. The closing mechanism (3) includes a drive member (31), two limiting components (32) and two closing frames (33). The closing frames (33) are located on opposite sides of the opening of the device body (1), and one end of each is rotatably connected to the device body (1), while the other end is close to each other to close the opening of the device body (1). The drive member (31) is used to electrically connect to the sensing circuit inside the device body (1) and to drive the limiting component (32) to release the limiting of the corresponding closing frame (33) so that the closing frame (33) can rotate after it comes into contact with the lock body.

3. An electronic sealing device for a container door lock according to claim 2, characterized in that: The limiting component (32) includes a limiting frame (321) and an unlocking component (322). The limiting frame (321) is rotatably connected to the device body (1). One end of the limiting frame (321) is located on the displacement path of the corresponding closed frame (33) away from another closed frame (33). The driving component (31) is used to release the limitation on the rotation of the limiting frame (321) through the unlocking component (322).

4. An electronic sealing device for a container door lock according to claim 3, characterized in that: The unlocking component (322) includes an unlocking frame (3221), and the unlocking frame (3221) is also provided with a locking part (4). The locking part (4) is located on the rotation path of the corresponding limiting frame (321). The unlocking frame (3221) is slidably connected to the device body (1). The driving component (31) is used to drive the corresponding unlocking frame (3221) to slide, so that the locking part (4) moves away from the corresponding limiting frame (321).

5. An electronic sealing device for a container door lock according to claim 2, characterized in that: The closed frame (33) is further provided with an abutment frame (5) on the side away from the trigger frame (21), and the abutment frame (5) is located on the displacement path of the lock body after the lock is unlocked.

6. An electronic sealing device for a container door lock according to claim 5, characterized in that: One end of the abutment frame (5) extends into the enclosure frame (33) and is slidably connected to the enclosure frame (33). The enclosure frame (33) is also provided with a drive mechanism (6). When the enclosure frame (33) rotates, the drive mechanism (6) drives the abutment frame (5) to slide, thereby retracting into the enclosure frame (33).

7. An electronic sealing device for a container door lock according to claim 6, characterized in that: The drive mechanism (6) includes a drive frame (61), a transmission frame (62), and a linkage (63). The drive frame (61) is slidably connected to the corresponding closed frame (33), and the sliding direction is different from the sliding direction of the corresponding abutment frame (5). One end of the transmission frame (62) is rotatably connected to the corresponding drive frame (61), and the other end is rotatably connected to the corresponding abutment frame (5). The closed frame (33) drives the drive frame (61) to slide through the linkage (63).

8. An electronic sealing device for a container door lock according to claim 7, characterized in that: The linkage component (63) includes a linkage frame (631), one end of which is rotatably connected to the drive frame (61), and the other end is rotatably connected to the device body (1).

9. An electronic sealing device for a container door lock according to claim 3, characterized in that: The limiting frame (321) also extends an abutment portion (3212), which is located on the side of the closing frame (33) away from the locking portion (4). The closing frame (33) is located on the rotation path of the abutment portion (3212) when it rotates together with the limiting frame (321). The closing mechanism (3) also includes a driving member (34). The unlocking frame (3221) is used to drive the limiting frame (321) to rotate through the driving member (34) when it is away from the limiting frame (321).

10. An electronic sealing device for a container door lock according to claim 9, characterized in that: The limiting frame (321) extends an inclined portion (3213) on the side away from the closing frame (33). The inclined portion (3213) is inclined outward on the side away from the closing frame (33). The driving member (34) includes a driving frame (341). One end of the driving frame (341) is connected to the unlocking frame (3221). The side of the extension (331) that is inclined outward is located on the displacement path of the other end of the driving frame (341).

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