A lock and a remote locking device
Patent Information
- Application Number
- CN202522072141.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-25
- Publication Date
- 2026-09-11
- Estimated Expiration
- 2035-09-25
AI Technical Summary
在实际使用中发现，基于杠杆原理，由于锁扣至驱动力位置处的力臂距离的增加，通过辅助连接件4施加的推力F3很难使高位装置3顶开所述弹簧门2，实际使用中较为不方便
[0025]综上，本实用新型提供了一种锁扣及远距离锁扣装置，该锁扣通过增设辅助门的方式，使得锁扣能够工作在不同状态下，不同状态下的锁扣能够供外部设备装置以不同方向进入至所述主体内侧，从而使得锁扣能够以多种方式完成挂载，在实际应用中能够更方便及更安全的应用于不同的使用场景中；该远距离锁扣装置可利用辅助牵引件带动锁扣对高点位处的外部设备装置进行挂载，满足实际使用需求。
Smart Images
Figure CN224742722U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of auxiliary equipment, specifically to a latch and a remote latching device. Background Technology
[0002] Figure 1 This is a front view of a lock structure in the prior art. Currently, common locks on the market generally include a structure 1 and a spring door 2. The structure 1 has an entrance channel for other equipment to enter, and the spring door 2 is openable and closable at the entrance channel. Combined with... Figure 1 As shown in the diagram, to open the spring door, a driving force needs to be applied to the spring door 2 in the direction indicated by the thrust F1. In actual implementation, the latch is usually directly attached to an external device. Therefore, a thrust is usually applied to the latch in the position and direction of the force indicated by the thrust F2, and the external device is used to open the spring door 2.
[0003] Figure 2 This is a schematic diagram illustrating the implementation principle of a latch for mounting a high-position device using existing technology. When mounting a high-position device 3 using existing technology, if the distance to the high-position device 3 is relatively far, due to the limited length of the arm, an auxiliary connector 4 is needed to extend the arm's distance. In this state, to mount the latch onto the high-position device 3, a swinging thrust F3 or a lateral thrust F4 (the common method is to apply a swinging thrust F3) needs to be applied to the auxiliary connector 4. In practical use, it has been found that, based on the lever principle, due to the increased distance of the lever arm from the latch to the driving force position, the thrust F3 applied through the auxiliary connector 4 is insufficient to make the high-position device 3 open the spring door 2, making it inconvenient in actual use. Utility Model Content
[0004] To overcome the limitations of existing locks in terms of application scenarios, this utility model provides a lock and a remote locking device. By adding an auxiliary door, the lock can temporarily change the mounting method when the main body is mounted to an external device as needed, so as to adapt to more application scenarios.
[0005] This utility model provides a latch, including a main body, a first spring-loaded structure, and a spring-loaded door. The main body has an opening, and a first connecting end and a second connecting end are provided at the opening. The root of the spring-loaded door is hinged to the first connecting end. In the open state, the end of the spring-loaded door swings inward toward the inside of the main body, forming an entry channel between the spring-loaded door and the second connecting end. In the locked state, the end of the spring-loaded door is driven by the first spring-loaded structure to abut against the second connecting end from the inside of the main body.
[0006] The latch also includes an auxiliary door, the base of which is hinged to the main body, and the end of which swings inside the main body.
[0007] When the auxiliary door swings to a preset position, during the process of the spring-loaded door switching from the open state to the locked state, the spring-loaded door abuts against the auxiliary door, and the entry passage is closed based on the auxiliary door.
[0008] In an optional implementation, the first rebound structure includes a first torsion spring, which is disposed at the hinge position between the rebound door and the first connecting end.
[0009] One end of the first torsion spring engages with the main body, and the other end of the first torsion spring engages with the spring-loaded door.
[0010] An optional implementation may also include a second springback structure;
[0011] The end of the auxiliary door abuts against the main body from the inside of the main body under the drive of the second spring structure;
[0012] The second connecting end and the auxiliary door end abutting positions on the main body are respectively located on both sides of the hinge position of the auxiliary door root on the main body.
[0013] In an optional embodiment, the second rebound structure includes a second torsion spring, which is disposed at the hinge position between the auxiliary door and the main body;
[0014] One end of the second torsion spring engages with the main body, and the other end of the second torsion spring engages with the auxiliary door.
[0015] In an optional implementation, the main body is provided with a limiting structure to restrict the end point of the swing stroke of the auxiliary door;
[0016] Based on the limiting structure, when the auxiliary door moves to the end point of the swing, the auxiliary door is in the preset position.
[0017] In an optional implementation, the limiting structure includes a locking step disposed on the main body.
[0018] In an optional embodiment, the end of the spring-loaded door is provided with a limiting groove with an opening facing the second connecting end;
[0019] In the locked state, when the end of the spring-loaded door abuts against the second connecting end from the inside of the main body based on the first spring-loaded structure, the second connecting end falls into the limiting slot.
[0020] In an optional implementation, the auxiliary door has a U-shaped structure, with the root of the auxiliary door being the open end of the U-shaped structure and the end of the auxiliary door being the closed end of the U-shaped structure.
[0021] In an optional embodiment, a recessed locking groove is provided on the side of the end of the spring-loaded door facing the second connecting end;
[0022] When the auxiliary door swings to a preset position, during the process of the spring-loaded door switching from the open state to the locked state, the spring-loaded door abuts against the auxiliary door through the locking groove, and the entry passage is closed based on the auxiliary door.
[0023] Accordingly, this utility model also discloses a long-distance locking device, including the aforementioned locking device and an auxiliary traction component;
[0024] One end of the auxiliary traction component is connected to the main body.
[0025] In summary, this utility model provides a latch and a remote latching device. By adding an auxiliary door, the latch can operate in different states, allowing external devices to enter the inner side of the main body from different directions. This enables the latch to complete the mounting in multiple ways, making it more convenient and safer to use in various application scenarios. The remote latching device can use an auxiliary traction component to drive the latch to mount external devices at high points, meeting practical usage needs. Attached Figure Description
[0026] 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.
[0027] Figure 1 This is a front view of the locking structure under existing technology.
[0028] Figure 2 This is a schematic diagram illustrating the working principle of a locking device at a high position when it is mounted using existing technology.
[0029] Figure 3 This is a simplified schematic diagram of the locking structure in the locked state according to Embodiment 1 of this utility model.
[0030] Figure 4 This is a simplified schematic diagram of the latch structure in the open state according to Embodiment 1 of this utility model.
[0031] Figure 5 This is a simplified schematic diagram of the locking structure in the holding state according to Embodiment 1 of this utility model.
[0032] Figure 6 This is a simplified schematic diagram of the locking structure in Embodiment 2 of this utility model.
[0033] Figure 7 This is a simplified schematic diagram of the locking structure in Embodiment 3 of this utility model.
[0034] Figure 8 This is a three-dimensional structural diagram of the latch in Embodiment 4 of this utility model.
[0035] Figure 9 This is a front view schematic diagram of the latch structure of Embodiment 4 of this utility model.
[0036] Figure 10 This is a three-dimensional structural diagram of the long-distance locking device according to Embodiment 5 of this utility model.
[0037] Figure 11 This is a schematic diagram illustrating the working principle of the long-distance locking device in Embodiment 5 of this utility model. Detailed Implementation
[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0039] Example 1
[0040] Figure 3 This is a simplified schematic diagram of the locking structure in the locked state according to an embodiment of the present invention.
[0041] Figure 4 This is a simplified schematic diagram of the latch structure in the open state according to an embodiment of the present invention.
[0042] Figure 5 This is a simplified schematic diagram of the locking structure in the holding state according to an embodiment of the present invention.
[0043] This utility model embodiment discloses a latch, which basically includes a main body 10, a first spring-loaded structure, and a spring-loaded door 11.
[0044] The main body 10 has an opening, and the two ends of the main body 10 at the opening are respectively named the first connecting end 17 and the second connecting end 18. Commonly, the main body 10 can be a D-shaped structure, an elliptical structure, a pear-shaped structure, etc. In this embodiment of the utility model, a D-shaped structure main body 10 is used as an example for explanation.
[0045] Specifically, the root of the spring-loaded door 11 is hinged to the first connecting end 17, and the opening is opened or closed by opening and closing the spring-loaded door 11.
[0046] Specifically, in the open state, the end of the spring-loaded door 11 swings toward the inside of the main body 10, the opening is opened, and an entry channel is formed between the spring-loaded door 11 and the second connecting end 18, which can be used to allow external equipment devices to enter.
[0047] Specifically, in the locked state, the end of the spring-loaded door 11 is driven from the inside of the main body 10 to abut against the second connecting end 18 based on the first spring-loaded structure, and the opening 19 is closed; due to the limiting effect of the second connecting end 18 on the end of the spring-loaded door 11, the external equipment device that has been fitted onto the main body 10 cannot be dislodged under the pulling force, and the main body 10 can be safely mounted on the external equipment device.
[0048] Specifically, in this embodiment of the utility model, the latch also includes an auxiliary door 13.
[0049] The base of the auxiliary door 13 is hinged to the main body 10, and the end of the auxiliary door 13 swings inside the main body 10. When the auxiliary door 13 swings to a preset position, during the process of the spring-loaded door 11 switching from the open state to the locked state, the spring-loaded door 11 abuts against the auxiliary door 13, and the access passage is closed based on the auxiliary door.
[0050] For details, please refer to Figures 3 to 5The dotted lines indicate the rebound trajectory 14 at preset points on the rebound door 11 and the auxiliary trajectory 15 at the end of the auxiliary door 13. The rebound trajectory 14 and the auxiliary trajectory 15 intersect at point 16. It should be noted that, in the schematic diagram, the rebound trajectory 14 covers the entire inner area of the main body 10, and the auxiliary trajectory 15 also covers the entire inner area of the main body 10. In actual design, the lengths of the rebound trajectory 14 and the auxiliary trajectory 15 can be adjusted according to requirements. Furthermore, on the one hand, the preset point actually refers to the position where the spring-back door 11 contacts the auxiliary door 13 when it abuts against the end of the auxiliary door 13, and is not a predefined point; on the other hand, due to the differences in the physical structure of the auxiliary door 13, the position where the spring-back door 11 abuts against the auxiliary door 13 is not necessarily the end of the auxiliary door 13. This utility model embodiment only names the position where the auxiliary door 13 provides the abutment function for the spring-back door 11 by the naming method of "end". In actual implementation, after this "end" position, a physical structure can be added according to the actual function.
[0051] Specifically, the latch of this utility model embodiment has at least three commonly used states depending on the positions of the spring-loaded door 11 and the auxiliary door 13: locked state, open state, and held state.
[0052] In the locked state, refer to the attached diagram. Figure 3 The illustration shows that the end of the spring-loaded door 11, driven by the first spring-loaded structure, abuts against the second connecting end 18 from the inside of the main body 10, closing the opening 19 on the main body 10. In this state, if it is necessary to attach the latch to an external device, an external force F10 is generally applied to the opposite side of the opening 19 of the main body 10. Through the contact between the spring-loaded door 11 and the external device, the reaction force F5 given by the external device is used to open the spring-loaded door 11.
[0053] With the application open, please refer to the attached diagram. Figure 4The illustration shows that, under the action of the reaction force F5 or the active thrust F6 provided by the external device, the end of the spring-loaded door 11 swings inward toward the main body 10, the opening 19 is opened, and the end of the spring-loaded door 11 disengages from the second connecting end 18, forming an entry channel between the end of the spring-loaded door 11 and the second connecting end 18. It should be noted that when the spring-loaded door 11 opens based on the reaction force F5 provided by the external device, the external device needs to maintain contact with the spring-loaded door 11 to continuously provide the reaction force. When the end of the spring-loaded door 11 swings inward, the tilt of the spring-loaded door 11 can provide a guiding effect for the external device, allowing it to slide into and engage with the main body 10.
[0054] In the held state, refer to the attached diagram. Figure 5 The illustration shows that under the action of external force F8, the end of the auxiliary door 13 swings to the intersection point 16 of the trajectory. In this state, due to motion interference, during the process of the latch switching from the open state to the closed state, the spring-loaded door 11, driven by the first spring-loaded mechanism, abuts against the auxiliary door 13 at the preset point. At this time, although the opening 19 of the main body 10 is open, the access passage is closed by the auxiliary door 13. In this state, external equipment devices can enter the inside of the main body 10 not only by applying a horizontal reaction force to the spring-loaded door 11 to open it, but also by applying an upward reaction force F7 to open the auxiliary door 13. Correspondingly, after the auxiliary door 13 is opened, the spring-loaded door 11 can spring back under the drive of the first spring-loaded mechanism, and the latch returns to the closed state.
[0055] It should be noted that in the schematic diagrams and related descriptions in the accompanying drawings, the forces F1 to F9 of this utility model embodiment are only used to illustrate the main direction of the force and the implementation form of the main force, and do not limit the actual implementation method of the force; in actual implementation, the direction of the relevant force may change depending on the specific implementation of the force, and this utility model embodiment will not describe it separately.
[0056] Based on the above description of the three common usage states of the latch, the latch of this utility model embodiment has two main mounting methods in actual implementation. The first usage method is that when the latch is in the closed state, pressure is applied to the main body 10 on the other side relative to the spring-loaded door 11, so that the external device pushes open the spring-loaded door 11 and engages with the main body 10. The direction of the applied pressure is close to the horizontal direction. The second usage method is that when the latch is in the holding state, after the external device enters and passes through the opening 19, a downward pulling or pushing force is applied to the main body 10, so that the external device pushes open the auxiliary door 13 and engages with the main body 10.
[0057] In summary, compared with existing locking devices, the locking device of this utility model embodiment, while maintaining the original structure and usage habits, adds an active auxiliary door 13 structure. The auxiliary door 13 interferes with the rebound and reset movement of the rebound door 11, thereby providing the locking device with an additional mounting direction. This allows the locking device to be mounted and used more conveniently and safely under the drive of vertical and lateral forces, expanding the range of application scenarios for the locking device.
[0058] Specifically, in actual implementation, the first rebound structure includes a first torsion spring 12, which is disposed at the hinge position between the rebound door 11 and the first connecting end 17; one end of the first torsion spring 12 cooperates with the main body 10, and the other end of the first torsion spring 12 cooperates with the rebound door 11.
[0059] Example 2
[0060] Specifically, when the latch is in the holding state, in order to enable the auxiliary door 13 to form a stable interference structure with the spring-loaded door 11, it is necessary to refine the design of the relevant structure of the auxiliary door 13. Two implementation methods are provided in this utility model embodiment for reference. The first implementation method is described in this utility model embodiment, and the second implementation method is described in embodiment three.
[0061] Figure 6 This is a simplified schematic diagram of the locking structure according to an embodiment of the present utility model.
[0062] Specifically, in this embodiment of the invention, the latch further includes a second spring-loaded structure;
[0063] The end of the auxiliary door 13 abuts against the main body 10 from the inside under the drive of the second spring structure; the abutting position of the end of the auxiliary door 13 on the main body 10 and the second connecting end 18 are respectively located on both sides of the position where the root of the auxiliary door 13 is set on the main body 10.
[0064] Specifically, refer to the attached diagram. Figure 5 The diagram illustrates the force exerted. When the latch is in the open state, it drives the end of the spring-loaded door 11 to swing inward toward the main body 10. After the preset point of the spring-loaded door 11 passes the trajectory intersection point 16, it drives the auxiliary door 13 to swing. After the end of the auxiliary door 13 passes the trajectory intersection point 16, the spring-loaded door 11 is released. Driven by the first spring-loaded structure, the spring-loaded door 11 rebounds and abuts against the end of the auxiliary door 13. At this time, the auxiliary door 13 is released, and the auxiliary door 13 swings back under the drive of the second spring-loaded structure. Through the balance of the reset driving force provided by the first spring-loaded structure to the spring-loaded door 11 and the reset driving force provided by the second spring-loaded structure to the auxiliary door 13, the preset point of the spring-loaded door 11 and the end of the auxiliary door 13 remain in contact and interfere at the trajectory intersection point 16. In actual use, due to the deviation of the driving force of the spring-loaded structure, there may be a slight deviation in the contact position between the spring-loaded door 11 and the auxiliary door 13. The description of this utility model embodiment is only used to illustrate the case of the latch under ideal conditions.
[0065] Accordingly, the second rebound structure includes a second torsion spring 20, which is disposed at the hinge position between the auxiliary door 13 and the main body 10; one end of the second torsion spring 20 is engaged with the main body 10, and the other end of the second torsion spring 20 is engaged with the auxiliary door 13.
[0066] Example 3
[0067] Figure 7 This is a simplified schematic diagram of the locking structure according to an embodiment of the present utility model.
[0068] Correspondingly, the main body 10 is provided with a limiting structure to restrict the swing stroke end point of the auxiliary door 13;
[0069] Based on the limiting structure, when the auxiliary door 13 moves to the swing endpoint, the auxiliary door 13 is in the preset position. In this embodiment of the utility model, the limiting structure includes a locking step 2121 disposed on the main body 103. Based on the locking step 2121, the end of the auxiliary door 13 can be stably located at the trajectory intersection point 16.
[0070] Example 4
[0071] Figure 8 This is a three-dimensional structural diagram of the latch according to an embodiment of the present utility model.
[0072] Figure 9 This is a front view schematic diagram of the latch structure according to an embodiment of the present utility model.
[0073] This utility model embodiment provides a physical structure of a latch for reference.
[0074] Specifically, the main body 10 can be made by bending strip raw materials and then using hot pressing plasticity to process the required structure and form it.
[0075] The spring-loaded door 11 is manufactured by machining. In specific implementation, in order to enhance the sealing effect of the spring-loaded door 11 on the open opening 19 and prevent the spring-loaded door 11 from disengaging, the end of the spring-loaded door 11 is provided with a limiting groove 22 with the opening facing the second connecting end 18. In the locked state, when the end of the spring-loaded door 11 is driven by the first spring structure to abut against the second connecting end 18 from the inside of the main body 10, the second connecting end 18 falls into the limiting groove 22.
[0076] The torsion spring in the first rebound structure is built into the hinge position between the rebound door 11 and the first connecting end 17.
[0077] Furthermore, in this embodiment of the present invention, the auxiliary door 13 is a U-shaped structure; the root of the auxiliary door 13 is the open end of the U-shaped structure, and the end of the auxiliary door 13 is the closed end of the U-shaped structure.
[0078] Similarly, the torsion spring in the first rebound structure is built into the hinge position between the auxiliary door 13 and the main body 10.
[0079] Furthermore, a recessed locking groove 23 is provided on the side of the end of the spring-loaded door 11 facing the second connecting end 18; when the auxiliary door 13 swings to the preset position, during the process of the spring-loaded door 11 switching from the open state to the locked state, the spring-loaded door 11 abuts against the auxiliary door 13 through the locking groove 23, and the entry passage is closed based on the auxiliary door.
[0080] On the one hand, in the holding state, the locking groove 23 can maintain the positional stability between the spring-loaded door 11 and the auxiliary door 13. On the other hand, the locking groove 23 needs to be transitioned by an arc in actual processing, which is beneficial to the smooth disengagement of the auxiliary door 13 from the spring-loaded door 11 when external force is applied to the auxiliary door 13, thus avoiding the formation of a motion dead zone.
[0081] Example 5
[0082] Figure 10 This is a three-dimensional structural diagram of the long-distance locking device 100 according to an embodiment of the present utility model.
[0083] Based on the above embodiments of the latch 100, this utility model embodiment provides a long-distance latch 100 device, including the latch 100 and an auxiliary traction member 200; one end of the auxiliary traction member 200 is connected to the main body 10.
[0084] Specifically, in this embodiment of the present invention, the auxiliary traction member 200 includes a connector 201 and a traction belt 202. The connector 201 is sleeved on the main body 10 of the lock 100, and one end of the traction belt 202 is connected to the connector 201.
[0085] Figure 11 This is a schematic diagram illustrating the working principle of the long-distance locking device 100 according to an embodiment of the present utility model.
[0086] In practical use, if it is necessary to access external devices at higher locations (such as...) Figure 11 The mounting plate 30 shown is used to mount the latch 100. First, the latch 100 is adjusted to the holding state, and then the latch 100 is driven onto the mounting plate 30 by the auxiliary traction member 200. The fixing hole 31 of the mounting plate 30 is first inserted into the second connecting end 18 (that is, the mounting plate 30 enters the opening 19 of the main body 10 first). Then, a downward pulling force F10 is applied to the main body 10 by pulling down, so that the mounting plate 30 can push open the auxiliary door 13 and enter the inside of the main body 10. The spring door 11 resets after losing the interference of the auxiliary door 13. The end of the spring door 11 abuts against the second connecting end 18, and the latch 100 returns to the closed state.
[0087] In summary, this utility model provides a latch and a remote latching device. By adding an auxiliary door, the latch can operate in different states, allowing external devices to enter the inner side of the main body from different directions. This enables the latch to complete the mounting in multiple ways, making it more convenient and safer to use in various application scenarios. The remote latching device can use an auxiliary traction component to drive the latch to mount external devices at high points, meeting practical usage needs.
[0088] The above provides a detailed description of a latch and a remote latching device provided by the embodiments of this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.
Claims
1. A latch, comprising a body, a first spring-loaded structure, and a spring-loaded door, wherein the body has an opening, a first connecting end and a second connecting end are provided at the opening, and the root of the spring-loaded door is hinged to the first connecting end; in an open state, the end of the spring-loaded door swings toward the inside of the body, forming an entry channel between the spring-loaded door and the second connecting end; in a locked state, the end of the spring-loaded door is driven by the first spring-loaded structure to abut against the second connecting end from the inside of the body; characterized in that The latch also includes an auxiliary door, the base of which is hinged to the main body, and the end of which swings inside the main body. When the auxiliary door swings to a preset position, during the process of the spring-loaded door switching from the open state to the locked state, the spring-loaded door abuts against the auxiliary door, and the entry passage is closed based on the auxiliary door.
2. The lock catch of claim 1, wherein, The first rebound structure includes a first torsion spring, which is disposed at the hinge position between the rebound door and the first connecting end; One end of the first torsion spring engages with the main body, and the other end of the first torsion spring engages with the spring-loaded door.
3. The lock catch of claim 1 wherein, It also includes a second spring-loaded structure; The end of the auxiliary door abuts against the main body from the inside of the main body under the drive of the second spring structure; The second connecting end and the auxiliary door end abutting positions on the main body are respectively located on both sides of the hinge position of the auxiliary door root on the main body.
4. The hasp of claim 3 wherein, The second rebound structure includes a second torsion spring, which is disposed at the hinge position between the auxiliary door and the main body; One end of the second torsion spring engages with the main body, and the other end of the second torsion spring engages with the auxiliary door.
5. The hasp of claim 1 wherein, The main body is provided with a limiting structure that restricts the end point of the swing stroke of the auxiliary door; Based on the limiting structure, when the auxiliary door moves to the end point of the swing, the auxiliary door is in the preset position.
6. The hasp of claim 5 wherein, The limiting structure includes a locking step disposed on the main body.
7. The hasp of claim 1 wherein, The end of the spring-loaded door is provided with a limiting groove with an opening facing the second connecting end; In the locked state, when the end of the spring-loaded door abuts against the second connecting end from the inside of the main body based on the first spring-loaded structure, the second connecting end falls into the limiting slot.
8. A catch as claimed in any one of claims 1 to 7, characterised in that The auxiliary door has a U-shaped structure, with the root of the auxiliary door being the open end of the U-shaped structure and the end of the auxiliary door being the closed end of the U-shaped structure.
9. A catch as claimed in any one of claims 1 to 7, characterised in that The end of the spring-loaded door is provided with a recessed locking groove on the side facing the second connecting end; When the auxiliary door swings to a preset position, during the process of the spring-loaded door switching from the open state to the locked state, the spring-loaded door abuts against the auxiliary door through the locking groove, and the entry passage is closed based on the auxiliary door.
10. A remote locking device, characterized in that Includes the locking mechanism and auxiliary traction element as described in any one of claims 1 to 9; One end of the auxiliary traction component is connected to the main body.