Bearing device

Abstract

The present invention relates to a bearing device, and to the technical field of vehicle accessories. The bearing device comprises a box body and a box cover, and further comprises a fixed lock element, a movable lock element and an unlocking device, the movable lock element lockingly fitting the fixed lock element. With regard to the movable lock element and the fixed lock element, one is arranged on the box body while the other one is arranged on the box cover. The movable lock element is further provided with a linkage member and a driving member which movably fit each other. When the linkage member moves in a first direction, the driving member moves in a second direction, such that the movable lock element can be movably switched between a locked state and an unlocked state. The unlocking device is arranged on the box body or the box cover, and is provided with a shifting block assembly capable of driving the movable lock element to move, a first unlocking module and a second unlocking module, the first unlocking module and / or the second unlocking module being used for locking and releasing the shifting block assembly. The present invention avoids the risk of brute-force unlocking or technical lock picking, thereby achieving the effect of enhancing anti-theft performance.

Description

A carrying device

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 202411357354.1, filed on September 27, 2024, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the technical field of vehicle accessories, in particular to a carrying device. BACKGROUND

[0004] The storage box installed on the roof of the car, that is, the roof box, as a device to expand the carrying space of the vehicle, has been widely used in outdoor travel, long-distance self-driving and other scenes. The roof box is usually made of solid material, which can effectively protect the luggage, sports equipment, camping supplies and other items stored inside from the external environment, such as wind, rain, dust, etc.

[0005] The roof box is generally fixed by a clamp installed on the roof beam or hanger. This design makes the installation and uninstallation of the roof box relatively convenient, while providing sufficient stability and safety to ensure that it does not negatively affect driving safety during vehicle travel. With the popularity of roof boxes, their safety issues have become increasingly prominent. In order to provide additional safety and anti-theft functions, existing roof boxes are usually equipped with a locking mechanism to lock the lid of the roof box, preventing unauthorized personnel from opening the box and removing the items inside.

[0006] However, the existing locking mechanism has a relatively simple structure, making it easy for others to quickly complete the unlocking of the locking mechanism. Once the unlocking tool or method is obtained, the roof box can be opened within a short period of time, leading to the theft of the items inside and posing a certain safety hazard to the roof box. SUMMARY

[0007] The present application provides a carrying device to solve the problems raised in the background art.

[0008] In order to achieve the above-mentioned application purpose, the present application adopts the following technical solutions:

[0009] A carrying device, comprising an openable and closable box body and a box cover, characterized in that it further comprises:

[0010] A fixed lock element;

[0011] A movable lock element, which can be locked with the fixed lock element, one of the movable lock element and the fixed lock element is arranged on the box body, and the other is arranged on the box cover. The movable lock element can be switched between a locked state and an unlocked state;

[0012] An unlocking device is arranged on the box body or the box cover, and the unlocking device is provided with a dial block assembly capable of driving the mobile lock element to move, and at least one unlocking module for releasing the dial block assembly.

[0013] As an optional embodiment, the unlocking module is arranged as one of an electronic unlocking module and a key unlocking module.

[0014] As an optional embodiment, the mobile lock element is provided with a movable linkage and a driving element, when the linkage moves in a first direction, the driving element moves in a second direction, so that the mobile lock element can move and switch between a locked state and an unlocked state.

[0015] As an optional embodiment, the linkage is provided with a mounting hole arranged in the second direction, and the linkage is located outside the mounting hole and is in transmission connection with the dial block assembly.

[0016] The driving element is movably arranged in the mounting hole, and the mobile lock element is provided with a lock hook assembly at one end of the driving element, and the lock hook assembly moves and switches between a locked state and an unlocked state according to the movement state of the driving element in the second direction.

[0017] As an optional embodiment, the lock hook assembly comprises:

[0018] A hook seat is fixedly arranged on the mobile lock element, and a hook groove is formed in the hook seat, and the hook groove is configured to provide a space for at least part of the fixed lock element to be arranged in the space;

[0019] A first lock hook is movably connected to the hook seat and the driving element at opposite ends, so that the first lock hook can move relative to the hook seat along with the driving element;

[0020] A second lock hook is rotatably arranged on the hook seat, and the second lock hook is in transmission cooperation with the first lock hook to close or open the slot of the hook groove along with the movement of the first lock hook.

[0021] As an optional embodiment, the second lock hook comprises:

[0022] A clasp is arranged at a first end of the second lock hook, and the clasp can move between a position for closing and a position for opening the slot of the hook groove; and

[0023] A top hook is arranged at a second end of the second lock hook, and the top hook is in sliding cooperation with the first lock hook and can extend into or exit from the hook groove from the bottom of the hook groove.

[0024] As an optional implementation, the mobile lock element further comprises:

[0025] A foolproofing element movably arranged in the mounting hole, the foolproofing element is configured to be movable in a third direction, so that an end of the foolproofing element is reciprocable between a position of extending out of the mobile lock element and a position of retracting into the mobile lock element;

[0026] A first elastic element acting on the foolproofing element, so that the foolproofing element has a tendency of extending out of the mobile lock element;

[0027] The linkage further comprises a pressing portion, when the mobile lock element is in the locked state, the pressing portion is offset from the foolproofing element, so that the foolproofing element is movable in the third direction, when the mobile lock element is in the unlocked state, the pressing portion abuts against the foolproofing element, so as to block the foolproofing element from extending out of the mobile lock element.

[0028] As an optional implementation, the linkage is formed with a guide slope extending in the first direction and inclined in the first direction in the mounting hole, and an outer surface of the driving element is formed with a matching slope surface matching the guide slope;

[0029] The driving element is slidably abutted against the guide slope through the matching slope surface, so that when the linkage is movable in the first direction, the driving element is pushed to move in the second direction through the guide slope.

[0030] As an optional implementation, further comprising: a fitting shell, an internal hollow mounting cavity is formed in the fitting shell, and the linkage and the driving element are movably arranged in the mounting cavity;

[0031] A second elastic element arranged in the mounting cavity and acting on the linkage and / or the driving element, so that the mobile lock element has a tendency of moving to the locked state.

[0032] As an optional implementation, the unlocking device further comprises:

[0033] A connecting rod, the connecting rod is provided with a free stroke section, the connecting rod is connected with the dial block assembly or the linkage through the free stroke section, and opposite ends of the free stroke section are connected with the dial block assembly or the linkage.

[0034] The present application has the following beneficial effects over the prior art:

[0035] The mobile lock element adopts a two-way motion coupling structure of linkage and driving element, so that the breaker cannot directly operate the unlocking through single direction force or simple tool. For example, the traditional lock core can be unlocked by rotating, but the scheme needs to push the linkage in the first direction to release the horizontal locking, and then complete the vertical unlocking through the driving element in the second direction. The complexity of the motion trajectory increases the difficulty of illegal unlocking operation, effectively delays the cracking process. At the same time, in the vehicle bumping or vibration scene, the two-way motion constraint of the linkage and the driving element can automatically compensate the deformation gap, avoid the false unlocking caused by resonance, effectively prevent the case of opening the box cover caused by accident, and improve the use safety of the bearing device in complex road conditions.

[0036] By setting the combined locking mechanism of the first unlocking module and the second unlocking module, double control of the dial block assembly is realized. Once the traditional single module unlocking device is cracked, the box cover can be directly opened. Even if a single module is illegally invaded, the other module can still prevent the unlocking action, fundamentally eliminating the risk of violent cracking or technical unlocking, and enhancing the anti-theft performance of the bearing device. BRIEF DESCRIPTION OF DRAWINGS

[0037] The drawings accompanying the specification of this application form a part thereof, serve to provide further understanding of the application, and together with the description, explain the application. The specific embodiments of the application and its description are used to explain the application without forming an improper limitation on the application.

[0038] In the drawings:

[0039] Fig. 1 is a perspective view of an embodiment provided by the present application;

[0040] Fig. 2 is a cooperation diagram of the fixed lock element, the mobile lock element and the unlocking device provided by the embodiment of the present application;

[0041] Fig. 3 is an exploded diagram of the fixed lock element, the mobile lock element and the unlocking device provided by the embodiment of the present application.

[0042] Fig. 4 is a structural diagram of the mobile lock element provided by the embodiment of the present application.

[0043] Fig. 5 is one of the exploded views of the mobile lock element provided by the embodiment of the present application.

[0044] Fig. 6 is the second exploded view of the mobile lock element provided by the embodiment of the present application.

[0045] Fig. 7 is a diagram of the internal structure of the mobile lock element provided by the embodiment of the present application.

[0046] Fig. 8 is a diagram of the internal structure of the mobile lock element provided by the embodiment of the present application.

[0047] Fig. 9 is a schematic view of the locking state structure of the hook assembly according to an embodiment of the present application.

[0048] Fig. 10 is a schematic view of the unlocking state structure of the hook assembly according to an embodiment of the present application.

[0049] Fig. 11 is a schematic view of the unlocking device according to an embodiment of the present application (the moving lock element is in the locking state).

[0050] Fig. 12 is a schematic view of the unlocking device according to an embodiment of the present application (the moving lock element is in the unlocking state).

[0051] Fig. 13 is a schematic view of the unlocking device according to an embodiment of the present application (the third state).

[0052] Fig. 14 is an exploded view of the unlocking device according to an embodiment of the present application.

[0053] Reference signs: fixed lock element (10); pressing rod (11); moving lock element (20); linkage (21); mounting hole (211); pressing part (212); guide slope (213); driving element (22); fitting slope (221); waist-shaped hole (222); hook assembly (23); hook base (231); hook groove (2311); first hook (232); second hook (233); clasp (2331); top hook (2332); foolproof element (24); first elastic element (25); assembly shell (26); second elastic element (27); unlocking device (30); push block assembly (31); first unlocking module (32); second unlocking module (33); connecting rod (34); idle stroke section (341); mounting shell (35); warning strip (36); box body (40); box cover (50). DETAILED DESCRIPTION

[0054] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is actually illustrative, rather than any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without any creative effort fall within the scope of protection of the present application.

[0055] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0056] The relative arrangement of parts and steps, numerical expressions, and numerical values set forth in the examples are not intended to limit the scope of the application unless otherwise specifically stated. It is to be understood that the drawings are not necessarily to scale of the actual proportions used in the fabrication, assembly, and operation of the products shown therein. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail herein. However, where appropriate, such techniques, methods, and apparatus should be considered as being within the scope of the present application. In the examples shown and discussed herein, any specific values are to be interpreted as illustrative and not as a limitation. Thus, other examples of the example embodiments can have different values. It is to be noted that like reference numerals and letters refer to like items in the drawings, and once an item is defined in one drawing, it need not be discussed further in subsequent drawings.

[0057] The storage box installed on the roof of the car, that is, the roof box, is a practical equipment specially designed to expand the storage capacity of the vehicle. It provides additional storage space for self-driving travel, outdoor exploration or family travel by adding it to the roof rack, thereby freeing up space inside the car and avoiding the impact of luggage on comfort. It has been widely used in outdoor travel, long-distance self-driving and other scenarios.

[0058] The roof box is usually made of a sturdy material that can withstand impact, scratches, and other effects, and can achieve rain and dust protection when combined with a sealing strip, protecting the contents of the box from moisture, dust, or sun damage.

[0059] As known from the background art, the roof box is generally fixed by a clamp installed on the roof beam or hanger. This design makes the installation and removal of the roof box relatively convenient, while providing sufficient stability and safety to ensure that it does not negatively affect driving safety during vehicle operation. With the popularity of roof boxes, safety issues have become increasingly prominent. To provide additional safety and anti-theft features, existing roof boxes are usually equipped with a locking mechanism to lock the lid of the roof box, preventing unauthorized personnel from opening the box and removing the contents.

[0060] However, the existing locking mechanism structure is relatively simple, so that others can quickly complete the unlocking of the locking mechanism, and once the unlocking tool or method is obtained, the roof box can be opened in a short time, causing internal items to be stolen, and bringing certain security risks to the roof box.

[0061] Therefore, the present embodiment provides a carrying device, which adopts a nonlinear linkage design for the moving lock element, so as to increase the cracking difficulty, and the unlocking device is provided with a first unlocking module and a second unlocking module to achieve double anti-theft protection, thereby solving the problem of safety risks caused by the simple structure of the locking structure for related products.

[0062] Please refer to FIGS. 1-8, the carrying device includes an openable box body 40 and a box cover 50. Among them, the box body 40 is the main part of the carrying device, mainly undertakes the task of storing things, can expand the storage space of the vehicle, and is convenient for carrying more luggage or articles; the box cover 50 is responsible for closing the box body 40, protecting the internal articles from the influence of the external environment (such as wind, rain, dust), and providing safety protection to prevent the luggage from falling or being stolen during driving.

[0063] Based on the above structure, the carrying device further includes a fixed lock element 10 and a moving lock element 20, one of the fixed lock element 10 and the moving lock element 20 is arranged on the box body 40, and the other is arranged on the box cover 50, and the moving lock element 20 can be locked with the fixed lock element 10, so that the box cover 50 can be firmly closed on the box body 40 through the locking of the moving lock element 20 and the fixed lock element 10.

[0064] It is worth mentioning that, taking a set of fixed lock elements 10 and moving lock elements 20 that can cooperate with each other as an example, a set or multiple sets of lock units can be arranged between the box body 40 and the box cover 50, and then an unlocking device 30 is arranged between the box body 40 and the box cover 50. In the unlocking, the unlocking device 30 is actuated, and the unlocking of one or more sets of lock mechanisms can be realized.

[0065] According to the above embodiment, the moving lock element 20 is further provided with a movable linkage 21 and a driving element 22, the linkage 21 is configured to reciprocate along a first direction, and the driving element 22 is configured to reciprocate along a second direction. It should be noted that the first direction and the second direction can be a rotating direction (such as clockwise or counterclockwise), or a straight line direction (such as horizontally forward or backward). When the linkage 21 moves along the first direction, the driving element 22 moves along a direction different from the first direction (usually perpendicular or at a certain angle), so that the moving lock element 20 can move between the locked state (capable of locking with the fixed lock element 10) and the unlocking state (capable of releasing from the fixed lock element 10).

[0066] It is also to be understood that, in the actual application scenario of the carrying device as a roof box, the linkage 21 is generally located close to the user's operating end, that is, the movement of the linkage 21 is usually triggered by user operation (such as rotation, pressing or pulling), when the user wants to lock the lid 50 on the box body 40, or wants to unlock the lid 50 from the box body 40, he can operate the linkage 21 to move in the first direction, the movement of the linkage 21 drives the driving member 22 to move in the second direction, and the movement of the driving member 22 further pushes or pulls other parts (such as a lock tongue or a lock catch, etc.) of the moving lock element 20 to tightly cooperate with or separate from the fixed lock element 10, thereby achieving the locking or unlocking of the lid 50.

[0067] For the convenience of understanding the scheme, it is assumed that the linkage 21 is a knob, the user rotates the knob (the first direction is the rotation direction, such as clockwise), and the rotation of the knob is converted into the linear motion (the second direction is up and down or forward and backward) of the driving member 22 through the internal mechanism (such as a cam, a gear or a thread). The linear motion of the driving member 22 pushes or pulls other parts of the moving lock element 20 to cooperate with or separate from the fixed lock element 10, thereby achieving locking or unlocking.

[0068] Another possibility is that the linkage 21 moves in the horizontal direction (the first direction is horizontal), and the driving member 22 moves in the vertical direction (the second direction is vertical), for example, the linkage 21 and the driving member 22 realize the conversion of the movement direction through connecting rods 34, sliding blocks and other components, and this embodiment will not be further described.

[0069] Based on the above embodiment, the carrying device further comprises an unlocking device 30, which is used to provide a corresponding operating position for the user on the box body 40 or the lid 50, so that the user can operate the moving lock element 20 through the unlocking device 30, therefore, the position of the unlocking device 30 needs to be determined according to the component where the moving lock element 20 is located. In the case that the moving lock element 20 is arranged on the lid 50, the unlocking device 30 is arranged on the lid 50, and in the case that the moving lock element 20 is arranged on the box body 40, the unlocking device 30 is also arranged on the box body 40.

[0070] In actual application scenarios, the unlocking device 30 can receive unlocking signals from the outside, which can come from a key, a button, a remote control, and various input methods. Once the unlocking device 30 receives a valid unlocking signal, the unlocking device 30 will immediately respond and trigger the unlocking action, so that the user can further operate the mobile lock element 20 through the unlocking device 30. In the daily state, the unlocking device 30 is in a locked state, so that the user cannot directly operate the mobile lock element 20 through the unlocking device 30, thereby further improving the closure stability and anti-theft performance of the box cover 50 and the box body 40, preventing the box cover 50 from being accidentally opened due to bumps or wind resistance during driving, and ensuring driving safety. At the same time, the unlocking device 30 is designed with more complex anti-theft mechanisms, which also improves the anti-theft performance of the carrying device.

[0071] Specifically, the unlocking device 30 is provided with a dial block assembly 31 that can drive the mobile lock element 20 to move. The dial block assembly 31 is a movable component in the unlocking device 30. As can be understood from the above, when the unlocking device 30 receives an unlocking signal, the dial block assembly 31 is allowed to move under the operation of the user, so that it can drive the mobile lock element 20 to switch between the locked state and the unlocked state. In the daily use state of the unlocking device 30, the dial block assembly 31 is locked by the unlocking device 30 to avoid misoperation of the mobile lock element 20.

[0072] In an embodiment, the unlocking device 30 is also provided with a first unlocking module 32 and a second unlocking module 33. As described above, the first unlocking module 32 and / or the second unlocking module 33 are used to lock and release the dial block assembly 31. The first unlocking module 32 and the second unlocking module 33 can be two unlocking modules with the same structure and function, or two unlocking modules with different structures and functions. For example, the first unlocking module 32 and the second unlocking module are respectively set as a key unlocking module and an electronic unlocking module. As a traditional unlocking method, the key unlocking module allows the user to insert and rotate the physical key to trigger the unlocking mechanism. When the key is inserted into the lock hole and rotated, it drives the mechanical structure (such as cam, gear) inside the unlocking device 30 to move, which in turn drives the locking component (such as lock pin, buckle) to move, thereby releasing the dial block assembly 31. The electronic unlocking module is a modern unlocking method. The electronic unlocking module allows the user to trigger the unlocking mechanism through electronic signals (such as remote control, mobile phone APP, fingerprint recognition, etc.). When the user sends an electronic unlocking signal, the receiver in the unlocking device 30 receives the signal and converts it into an electrical signal or mechanical movement. This electrical signal or mechanical movement drives the locking component (such as electromagnet, motor-driven lock pin) to move, thereby releasing the dial block assembly 31.

[0073] In this embodiment, the key unlocking module and the electronic unlocking module are two independent unlocking modes, but they both act on the same dial block assembly 31, which means that no matter which unlocking mode the user chooses, as long as the unlocking is successful, the dial block assembly 31 will be released.

[0074] The present application sets up a combined locking mechanism of the first unlocking module 32 and the second unlocking module 33, so that even if a single module is illegally intruded, the other module can still prevent the unlocking action. Once the traditional single-module unlocking device 30 is cracked, the box cover 50 can be directly opened. However, even if a single module is illegally intruded in the present application, the other module can still prevent the unlocking action, which fundamentally eliminates the risk of violent cracking or technical unlocking and enhances the anti-theft performance of the bearing device.

[0075] Moreover, the design of the unlocking device 30 should ensure that the dial block assembly 31 will only be released after a valid unlocking signal is received, which can prevent the accidental opening of the box cover 50 due to misoperation or illegal operation. In addition, through the cooperative design of the moving lock element 20 and the fixed lock element 10, the bidirectional motion constraint of the linkage 21 and the driving element 22 can automatically compensate for the deformation gap in the vehicle bumping or vibration scene, avoiding misunlocking due to resonance and preventing the accidental opening of the box cover 50 due to accidental touching, thereby significantly improving the use safety of the bearing device in complex road conditions.

[0076] In the above-mentioned embodiment using two unlocking modes, the user can also choose the most convenient unlocking mode according to their own preferences and actual situations. Whether it is the traditional key unlocking or the modern electronic unlocking, both can provide a quick and convenient unlocking experience.

[0077] In addition, the moving lock element 20 of the bearing device adopts a bidirectional motion coupling structure of the linkage 21 and the driving element 22, making it impossible for the cracker to directly operate its unlocking through single-direction force or simple tools. For example, the traditional lock core can be unlocked by simply rotating, while the present application needs to first push the linkage 21 in the first direction to release the horizontal locking, and then complete the vertical unlocking through the driving element 22 in the second direction. The complexity of the movement trajectory increases the difficulty of illegal unlocking operation, effectively delaying the cracking process. At the same time, in the vehicle bumping or vibration scene, the bidirectional motion constraint of the linkage 21 and the driving element 22 can automatically compensate for the deformation gap, avoiding misunlocking due to resonance and effectively preventing the accidental opening of the box cover 50, thereby improving the use safety of the bearing device in complex road conditions.

[0078] Please continue to refer to the description of the drawings 4-8, as an alternative embodiment, the linkage 21 through the installation hole 211 in the second direction, linkage 21 is located outside the installation hole 211 and the drive block assembly 31 transmission connection, the drive member 22 can be driven by the drive block assembly 31 along the predetermined direction (first direction) movement.

[0079] And the drive member 22 is movably arranged in the installation hole 211 in the second direction, so that the linkage 21 can be driven by the drive block assembly 31 along the first direction movement ability, the mobile lock element 20 is located at one end of the drive member 22 is also provided with the hook assembly 23, the hook assembly 23 according to the drive member 22 in the second direction, the movement state between the locking state and the unlocking state movement switching. Specifically, the installation hole 211 in the mobile lock element 20 is mainly used for the drive member 22 and other related components provide corresponding installation space and movement space, installation hole 211 along the second direction, for the drive member 22 provides a clear movement path, the drive member 22 in the installation hole 211 under the guidance of, can be along the predetermined direction linear motion, so as to ensure the accuracy and reliability of the unlocking device 30, to ensure that the drive member 22 can be partially or completely embedded in, so that the drive member 22 in the process of movement can be stable, not because of the external force and deviate or fall off.

[0080] At the same time, part of the structure of the installation hole 211 as the drive member 22 of the guide part, in addition to ensure the drive member 22 along the predetermined direction (second direction) linear motion, but also allows the two in the transmission process of the moment generated more gathered in the center of the drive member 22, avoid the drive member 22 in the process of movement due to the trajectory deviation of the additional moment, improve the movement precision of the drive member 22, but also makes the drive member 22 stress more uniform, avoid the eccentricity of the additional stress and vibration, further improve the stability and reliability of the mechanism, to avoid the drive member 22 and linkage 21 bear unnecessary stress, accelerate the wear and reduce the efficiency.

[0081] In addition, the linkage 21 through the installation hole 211 around part of the linkage 21, also can be used as a physical barrier in the mobile lock element 20 of the linkage 21, can effectively prevent the linkage 21 and other components (such as assembly shell 26) of the friction, avoid the damage to the drive member 22 and other precision components, prolong the service life of the components.

[0082] It should be understood that the hook assembly 23 is a component of the mobile lock element 20 directly involved in the locking and unlocking operation, and its function is to achieve the stable locking and convenient opening of the trunk cover 50 and the trunk body 40 by being buckled or disengaged with the fixed lock element 10. When the driving element 22 is in the initial state, the hook assembly 23 is in the locked state, so that it can be tightly buckled with the fixed lock element 10. When the user triggers the unlocking signal (such as pressing the remote control button or rotating the key), the mobile lock element 20 starts to work, the linkage 21 drives the driving element 22 to move in the second direction in the mounting hole 211, and the movement of the driving element 22 is transmitted to the hook assembly 23, so that the hook assembly 23 is switched from the locked state to the unlocked state, so that it can be disengaged from the buckle with the fixed lock element 10.

[0083] Generally speaking, the hook assembly 23 can but is not limited to including a rotatable or retractable hook structure, which has a specific shape and size to meet the buckling requirements of the fixed lock element 10. Moreover, the hook assembly 23 needs to be arranged at the end of the mobile lock element 20 and be tightly connected with the mobile lock element 20, so that the hook assembly 23 can move with the movement of the mobile lock element 20, thereby achieving the locking and unlocking with the fixed lock element 10.

[0084] Please refer to FIGS. 4-10 of the specification, in an embodiment, the hook assembly 23 includes a hook base 231, a first hook 232 and a second hook 233. Among them, the hook base 231 is fixedly arranged on the mobile lock element 20, and the hook base 231 serves as the basic structure of the hook assembly 23, providing a stable mounting platform for the first hook 232 and the second hook 233, and ensuring the stability of the overall structure of the hook assembly 23. The hook base 231 is also provided with a hook groove 2311, which is configured to provide space for at least part of the fixed lock element 10 to be placed therein, that is, the shape and size of the hook groove 2311 match the part of the fixed lock element 10 used for locking with the mobile lock element 20, ensuring that the fixed lock element 10 can be tightly placed in the hook groove 2311 in the locked state. The opposite ends of the first hook 232 are movably connected to the hook base 231 and the driving element 22, respectively, so that the first hook 232 can move with the driving element 22 relative to the hook base 231. When the driving element 22 is subjected to external operating force (such as the user rotating the key or pressing the button), the driving element 22 will move in the second direction, driving the first hook 232 to move. The second hook 233 is rotatably arranged on the hook base 231, and the second hook 233 is in transmission cooperation with the first hook 232. The movement of the first hook 232 is further transmitted to the second hook 233, driving the second hook 233 to rotate, thereby achieving the closing or opening of the slot of the hook groove 2311, so that the second hook 233 can lock the fixed lock element 10 in the hook groove 2311, or release the fixed lock element 10, so that the fixed lock element 10 can be disengaged from the hook groove 2311.

[0085] In an embodiment, a resilient member (e.g., a torsion spring) is further arranged between the first hook 232 and / or the second hook 233 and the hook seat 231. The resilient member can continuously act on the first hook 232 and / or the second hook 233, so that the second hook 233 has a tendency to close the notch of the hook groove 2311, thereby ensuring that the second hook 233 can stably lock the fixed locking element 10 therein after the fixed locking element 10 is placed in the hook groove 2311, and guaranteeing the stability between the box cover 50 and the box body 40.

[0086] The hook assembly 23 is compactly integrated with the hook seat 231, the first hook 232, and the second hook 233 through integrated design, thereby reducing the volume of the lock and adapting to the demand for compact space of a carrying device (a roof box) or the like.

[0087] Meanwhile, as a driving component, the first hook 232 is directly connected to the linkage 21, and can efficiently transmit external operating force (e.g., force generated by a user rotating a key or pressing a button) to the second hook 233, thereby improving mechanical efficiency and making the locking or unlocking process more rapid and smooth. Through the cooperative work of the first hook 232 and the second hook 233, force amplification or direction change can also be achieved. This force conversion mechanism makes the lock more flexible in coping with various use scenarios, and improves the adaptability and reliability of the lock. When the second hook 233 is directly impacted, the force acting on the second hook 233 can also be transmitted to the first hook 232 and other components such as the lock seat, thereby reducing the risk of direct damage to the hook assembly 23.

[0088] Please continue to refer to FIGS. 9-10 of the drawings. As an optional embodiment, in order to improve the reliability of the hook assembly 23 and enable it to have a function of assisting the fixed locking element 10 to disengage from the hook groove 2311, the second hook 233 in this embodiment includes a clasp 2331 and a top hook 2332, which are respectively located at two ends of the second hook 233 and respectively play a role of clamping the fixed locking element 10 when the second hook 233 is in a state of closing the hook groove 2311, and assisting the fixed locking element 10 to disengage from the hook groove 2311 when the second hook 233 opens the hook groove 2311.

[0089] The clasp 2331 is arranged at the first end of the second hook 233, and can move between the positions of closing and opening the notch of the hook groove 2311 through rotation or translation or the like, thereby preventing the fixed locking element 10 from disengaging from the hook groove 2311, and opening the notch of the hook groove 2311 in the unlocked state to allow the fixed locking element 10 to freely enter and exit.

[0090] The top hook 2332 is arranged at the second end of the second locking hook 233. In a specific application scenario, the buckle hook 2331 is arranged closer to the slot opening of the hook groove 2311 relative to the top hook 2332, and the top hook 2332 is arranged closer to the slot bottom of the hook groove 2311 relative to the buckle hook 2331. Therefore, the top hook 2332 can be closer to the first locking hook 232, so that the top hook 2332 can better form a sliding fit with the first locking hook 232, so that the top hook 2332 can be driven by the first locking hook 232 to extend into or exit the hook groove 2311 from the slot bottom of the hook groove 2311. In this way, the top hook 2332 can assist in ejecting the fixed locking element 10 in the hook groove 2311.

[0091] Through the above arrangement, especially in the embodiment in which the locking hook assembly 23 is provided with a resilient member, the fixed locking element 10 can be effectively prevented from disengaging from the hook groove 2311, thereby providing safety protection for the roof box. When the buckle hook 2331 exits the hook groove 2311, the top hook 2332 can also extend from the slot bottom of the hook groove 2311 to provide additional support for the fixed locking element 10, thereby assisting in opening the box cover 50 and improving the user experience.

[0092] In order to further improve the safety performance of the bearing device, the movable locking element 20 further comprises a foolproof member 24. At least part of the foolproof member 24 is movably arranged in the mounting hole 211, thereby optimizing the installation space of the movable locking element 20 and providing certain protection for the foolproof member 24. In the embodiment, as shown in FIGS. 4-8, the foolproof member 24 is configured to move in a third direction, so that the end of the foolproof member 24 can reciprocate between a position extending outside the movable locking element 20 or retracting into the movable locking element 20. In the embodiment in which the movable locking element 20 is provided with the locking hook assembly 23, and the hook groove 2311 is formed in the locking seat of the locking hook assembly 23, the foolproof member 24 is arranged on one side of the hook seat 231. When the foolproof member 24 extends from the movable locking element 20 to the outside, the end of the foolproof member 24 is located on one side of the hook groove 2311, so that it can act on the fixed locking element 10 together with the top hook 2332 to assist it in disengaging from the hook groove 2311.

[0093] In order for the foolproof member 24 to have the above functions, the movable locking element 20 further comprises a first resilient member 25 (such as a compression spring, a tension spring, etc.). The first resilient member 25 continuously acts on the foolproof member 24, so that the foolproof member 24 has a tendency to extend out of the movable locking element 20. When the fixed locking element 10 is pressed into the hook groove 2311 and presses against the foolproof member 24, the foolproof member 24 can retract into the movable locking element 20 by overcoming the elastic force of the first resilient member 25. When the fixed locking element 10 needs to disengage from the hook groove 2311, the first resilient member 25 can also assist the fixed locking element 10 to disengage by extending the foolproof member 24 out of the movable locking element 20.

[0094] Please refer to the description of FIG. 9-10, for example, the part of the fixed lock element 10 for placing into the hook groove 2311 is the pressing rod 11, in the process of the box cover 50 and the box body 40 cover, the pressing rod 11 can be placed into the hook groove 2311 and resist to the top hook 2332, so that the second lock hook 233 moves, the top hook 2332 exits from the bottom of the hook groove 2311 and lets the buckle hook 2331 enter the hook groove 2311 to lock the pressing rod 11, at the same time, the pressing rod 11 can also press the anti-fooling piece 24 on one side of the lock seat, so that the anti-fooling piece 24 retracts and moves into the lock element 20, when the lock hook assembly 23 is operated by the user to exit the buckle hook 2331 from the hook groove 2311, the top hook 2332 can be taken out of the hook groove 2311 together with the anti-fooling piece 24 to assist the pressing rod 11, which prevents the box cover 50 and the box body 40 from being stuck, and is beneficial to improve the user experience.

[0095] In an embodiment, in order to avoid the anti-fooling piece 24 from being misdisengaged from the hook groove 2311 due to the action of the first elastic piece 25 when the pressing rod 11 (fixed lock element) is locked in the moving lock element 20, as shown in FIG. 4-8, the linkage 21 is also provided with a pressing part 212, when the moving lock element 20 is in the locked state, the pressing part 212 is offset from the anti-fooling piece 24, so that the anti-fooling piece 24 can move in the third direction, so that it extends out of the moving lock element 20 under the action of the first elastic piece 25, thereby assisting the fixed lock element 10 to disengage; when the moving lock element 20 is in the unlocked state, the pressing part 212 abuts against the anti-fooling piece 24 to block the anti-fooling piece 24 from extending out of the moving lock element 20, in this way, after the pressing rod 11 is placed into the hook groove 2311 and locked by the lock hook assembly 23, the anti-fooling piece 24 can also be stably kept in the moving lock element 20 under the action of the pressing part 212, avoiding the situation that the end of the anti-fooling piece 24 continuously acts on the pressing rod 11 to cause the pressing rod 11 to disengage from the hook groove 2311, thereby improving the locking stability of the fixed lock element 10 and the moving lock element 20.

[0096] It should be understood that during the entire unlocking process described above, the linkage 21 will first contact the driving piece 22, so that the driving piece 22 can drive the lock hook assembly 23 to unlock, and then the pressing part 212 disengages from the anti-fooling piece 24, which has a certain sequence, thereby reducing unnecessary problems caused by misoperation, and at the same time, this sequence also ensures the anti-fooling effect, otherwise, if the anti-fooling piece 24 is reset before reaching the unlocking state, the anti-fooling effect will be poor.

[0097] In one embodiment, referring to FIGS. 6-8, the linkage 21 is disposed in the mounting hole 211 and has a guide slope 213 extending along the first direction and inclined along the first direction, and the outer surface of the driving member 22 has a matching slope 221 matching the guide slope 213. Accordingly, the driving member 22 is slidably abutted against the guide slope 213 through the matching slope 221, so that when the linkage 21 moves along the first direction, the driving member 22 is pushed to move along the second direction by the guide slope 213.

[0098] In the above embodiment, the linear movement of the linkage 21 along the first direction is converted into the linear movement of the driving member 22 along the second direction through the guide slope 213 and the matching slope 221, without the need for additional steering mechanisms (such as gear sets or levers), which significantly reduces the number of parts, makes the overall structure more compact, and is particularly suitable for scenarios such as roof boxes where space is limited. Moreover, the guide slope 213 and the matching slope 221 can be directly matched by the surface structure of the driving member 22 and the mounting hole 211, avoiding external protrusions or complex transmission structures, optimizing the space occupancy of the moving lock element 20, and making the loading space inside the carrying device larger.

[0099] In addition, the linkage 21 and the driving member 22 have a larger contact area through the slope matching, so that the interaction force distribution between the two is more uniform, the wear is smaller compared to point contact or line contact transmission (such as cam mechanisms), the service life is longer, and the durability of the carrying device is effectively improved.

[0100] For example, in the embodiment, the first direction is the X-axis direction in the horizontal plane, the second direction is the Y-axis direction in the horizontal plane, and the third direction is the Z-axis direction. During the reciprocating movement of the linkage 21 in the first direction, the position of the guiding slope 213 acting on the portion of the driving member 22 abutting the slope 221 in the second direction changes, so that the linkage 21 moves in the horizontal X-axis direction, and the driving member 22 changes in height in the horizontal Y-axis direction. Further, the first locking hook 232 and the second locking hook 233 are driven by rotating movement. In the embodiment, in order to convert the vertical movement of the driving member 22 into the rotating movement of the first locking hook 232, the connection between the driving member 22 and the first locking hook 232 is provided with a waist-shaped hole 222 extending in the Z-axis direction, so that the driving member 22 can drive the first locking hook 232 to rotate without interference during the horizontal movement of the driving member 22. During the unlocking of the moving lock element 20, the linkage 21 moves in the horizontal direction, and the driving member 22 is driven upward by the guiding slope 213 and the abutting slope 221. The driving member 22 drives the first locking hook 232 to reverse through the waist-shaped hole 222, so that the first locking hook 232 drives the second locking hook 233 to move to the state that the hook 2331 exits the hook groove 2311, and the top hook 2332 extends into the hook groove 2311 from the bottom of the hook groove 2311. In order to reset the moving lock element 20 to the locked state after losing external force in the unlocked state, the driving member 22 and / or the linkage 21 can be provided with a second elastic member 27, so that the driving member 22 and the linkage 21 can be reset by the second elastic member 27 and the linkage 21, and the first locking hook 232 is driven to rotate in the positive direction by the elastic member and the driving member 22, so that the second locking hook 233 can rotate to the state that the hook 2331 extends into the hook groove 2311 and the top hook 2332 exits the hook groove 2311 from the bottom of the hook groove 2311.

[0101] It is worth noting that when the hook groove 2311 is not pressed by the pressure rod 11 (the fixed lock element 10), the foolproof member 24 will be kept in the state of extending the moving lock element 20 under the action of the first elastic member 25, which will hinder the movement of the linkage 21. Therefore, the linkage 21, the driving member 22, and the locking hook assembly 23 can only be reset when the foolproof member 24 is pressed into the moving lock element 20 by the pressure rod 11, so that the compression part 212 of the linkage 21 can be offset from the foolproof member 24, and the moving lock assembly can be reset from the unlocked state to the locked state, thereby completing the locking of the moving lock element 20 and the fixed lock element 10, and playing a real foolproof role.

[0102] Please refer to the description of Figure 4, in an embodiment, the mobile lock element 20 further comprises an assembly shell 26, which serves as the support base of the mobile lock element 20, and a hollow mounting cavity is formed in the interior of the assembly shell 26, the linkage 21 and the driving element 22 are movably arranged in the mounting cavity, and in the embodiment in which the mobile lock element 20 further comprises the lock hook assembly 23 and the foolproof element 24, the hook seat 231 in the lock hook assembly 23 and the foolproof element 24 can also be arranged in the assembly shell 26, so as to avoid the intrusion of external dust and moisture, and significantly improve the reliability of the mobile lock element 20 in harsh environments (such as rain, snow, and dust).

[0103] And the second elastic element 27 mentioned above is also arranged in the mounting cavity and acts on the linkage 21 and / or the driving element 22, so that the mobile lock element 20 has a tendency to move to the locked state, and the lock hook assembly 23 can have a resetting effect after the foolproof element 24 is pressed into the assembly shell 26.

[0104] Please refer to Figures 1-3 of the description, the unlocking device 30 further comprises a connecting rod 34, the connecting rod 34 is provided with an idle stroke section 341, the connecting rod 34 is connected with the dial block assembly 31 or the linkage 21 through the idle stroke section 341, in the case where the idle stroke section 341 is connected with the dial block assembly 31, the extension direction of the idle stroke section 341 is determined according to the operation direction of the dial block assembly 31, and in the case where the idle stroke section 341 is connected with the linkage 21, the idle stroke section 341 matches the movement direction of the linkage 21, that is, it is arranged in extension in the first direction. The opposite ends of the idle stroke section 341 can be linked with the dial block assembly 31 or the linkage 21, so that after the dial block assembly 31 is operated for a distance from the initial position to the position for driving the mobile lock element 20 to unlock, the idle stroke section 341 can be linked with the dial block assembly 31, thereby realizing the movement of the linkage 21; or after the dial block assembly 31 is operated for a distance from the initial position to the position for driving the mobile lock element 20 to unlock, the idle stroke section 341 is linked with the linkage 21, thereby realizing the subsequent linkage operation.

[0105] According to the unlocking process mentioned in the above embodiment, it can be understood that in the process of driving the dial block assembly 31 from the initial position to the position for driving the mobile lock element 20 to unlock, the dial block assembly 31 and the linkage 21 will first pass through an idle stroke due to the presence of the connecting rod 34, and then the formal unlocking will be started, and the idle stroke section 341 forms a “non-effective stroke” in the movement path of the connecting rod 34. When the user accidentally touches the unlocking button or the lock is slightly vibrated, the connecting rod 34 will produce displacement, but the presence of the idle stroke section 341 ensures that the displacement will not be directly transmitted to the dial block assembly 31 or the linkage 21, thereby avoiding false unlocking. It also prolongs the time of malicious unlocking by thieves to a certain extent, and improves the security, for example, in an outdoor or poorly lit location, once someone wants to unlock the roof box, the load bearing in this embodiment has relatively high security.

[0106] In one embodiment, when there are multiple mobile lock mechanisms, the unlocking device 30 can connect multiple mobile lock elements 20 through the connecting rod 34, and the idle stroke section 341 on the connecting rod 34 can be arranged between the connecting rod 34 and at least one mobile lock element 20, so that when the idle stroke section 341 moves, the hook assembly 23 of part of the mobile lock element 20 has completed locking, thereby achieving the effect of single-point locking.

[0107] Further, compared with the locking control in the prior art, the prominent feature of the embodiment is that when two or more mobile lock elements 20 and the fixed lock element 10 achieve locking, at least one of the mobile lock elements 20 is in a locked state, and the other mobile lock elements 20 and the fixed lock element 10 can achieve more accurate positioning, and by exerting an external force on the mobile lock element 20 still in the unlocked state, it can be more easily locked with the fixed lock element 10 and the mobile lock element 20, thereby improving the operation experience of the user in the locking process.

[0108] Please refer to the drawings in the specification. As an optional embodiment, the dial block assembly 31 includes a dial member connected with the first unlocking module 32 and the second unlocking module 33. In order to facilitate the transmission between the dial member and the linkage 21, stable and reliable connection is needed between the dial member and the linkage 21. The dial member includes a dial body and a first dial rod (not shown in the figure) and a second dial rod (not shown in the figure) arranged on one side of the dial body. The first dial rod and the second dial rod are in transmission cooperation with the linkage 21.

[0109] It can be understood that in the above embodiment in which the unlocking device 30 is also provided with the connecting rod 34, the first dial rod and the second dial rod cooperate with the connecting rod 34, and correspondingly, the connecting rod 34 is also provided with a connecting structure matched with the first dial rod and the second dial rod.

[0110] In one embodiment, the first dial rod and the second dial rod are arranged in the direction in which the connecting rod 34 extends, so as to further improve the force stability of the dial member and the connecting rod 34.

[0111] In order to facilitate the dialing of the dial body, the second side of the dial body is also provided with a dialing handle exposed outside the unlocking device 30.

[0112] Further, please continue to refer to FIGS. 1-3 and 11-14 of the drawings. The fixed lock element 10 and the mobile lock element 20 of the embodiment of the application are all provided with three, and the three mobile lock elements 20 are arranged along the length direction of the connecting rod 34, and the three mobile lock elements 20 are respectively located at the two end portions and the middle portion of the connecting rod 34. The three mobile lock elements 20 of the embodiment can move with the movement of the connecting rod 34, so that the user can drive the three mobile lock elements 20 to be unlocked synchronously when operating the dial member.

[0113] In order to facilitate the installation of the unlocking device 30 on the box cover 50 or the box body 40, the unlocking device 30 further comprises an installation shell 35, and the dial block assembly 31 and the first unlocking module 32 and the second unlocking module 33 are arranged in the installation shell 35, and the dial handle on the dialing member and the parts for providing user operation of the first unlocking module 32 and the second unlocking module 33 are exposed outside the installation shell 35.

[0114] Referring to FIGS. 11-14, in order to facilitate reminding the user of the existence of false locking or no locking, the embodiment further comprises a warning strip 36 arranged in the installation shell 35, the warning strip 36 is arranged on the side of the dialing member close to the inside of the installation shell 35, and is only located on one side of the movement track of the dialing member, in the locking process of the moving locking element 20, if the moving locking element 20 is in the false locking state (each part is not reset to the position conforming to the locking state), the connecting rod 34 will be in the state of restraining the dialing member, so that the dialing member is also in the state of not being reset, the warning strip 36 is exposed, and the user can be reminded in time that the box is not completely locked at this time and needs to be checked and locked again.

[0115] In the description of the present application, it should be understood that the orientation words such as "front, back, up, down, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and in the absence of contrary statements, these orientation words do not indicate and imply that the devices or elements referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the scope of protection of the present application; the orientation words "inner, outer" refer to the inner and outer of the contour of each part itself.

[0116] In order to facilitate the description, spatial relative terms such as "over", "above", "upper surface", "upper" and the like can be used herein to describe the spatial positional relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the devices described in the drawings. For example, if the devices in the drawings are inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0117] In addition, it should be noted that the use of the terms "first", "second" and the like is intended to distinguish between similar objects, and is not intended to limit the scope of the present application unless otherwise stated, and therefore cannot be understood as limiting the scope of protection of the present application.

[0118] The above description is merely the preferred embodiments of the present application, and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, and the like made by those skilled in the art within the spirit and principle of the present application shall be included in the scope of protection of the present application.

Claims

1. A carrying device comprising an openable and closable case (40) and a case cover (50), characterized in that, Also include: Fixed lock element (10); Mobile lock element (20), which can be locked with the fixed lock element (10), one of the mobile lock element (20) and the fixed lock element (10) is arranged in the box (40), the other is arranged in the box cover (50), the mobile lock element (20) can be switched between the locked state and the unlocked state; Unlocking device (30) is arranged in the box (40) or the box cover (50), the unlocking device (30) is provided with the block component (31) which can drive the mobile lock element (20) to move, and at least one unlocking module, the unlocking module is used for releasing the block component (31).

2. The load bearing device of claim 1, wherein, The unlocking module is set as one of electronic unlocking module or key unlocking module.

3. The load bearing device of claim 1, wherein, The mobile lock element (20) is provided with movable linkage (21) and driving element (22), when the linkage (21) moves along the first direction, the driving element (22) moves along the second direction, so that the mobile lock element (20) can be switched between the locked state and the unlocked state.

4. The load bearing device of claim 3, wherein, The linkage (21) is through the mounting hole (211) arranged in the second direction, the linkage (21) is located outside the mounting hole (211) and the block component (31) transmission connection; The driving element (22) is movably arranged in the mounting hole (211), one end of the mobile lock element (20) is further provided with a lock hook assembly (23), the lock hook assembly (23) is switched between the locked state and the unlocked state according to the movement state of the driving element (22) in the second direction.

5. The load bearing device of claim 4, wherein, The lock hook assembly (23) comprises: Hook seat (231), fixedly arranged in the mobile lock element (20), the hook seat (231) is provided with hook groove (2311), the hook groove (2311) is configured to provide space for the fixed lock element (10) to be placed in; First lock hook (232), which is movably connected to the hook seat (231) and the driving element (22) at opposite ends, so that the first lock hook (232) can move with the driving element (22) relative to the hook seat (231); Second lock hook (233), rotatably arranged in the hook seat (231), and the second lock hook (233) is in transmission with the first lock hook (232), so as to close or open the notch of the hook groove (2311) with the movement of the first lock hook (232).

6. The load bearing device of claim 5, wherein, The second lock hook (233) comprises: Hook (2331), arranged at the first end of the second lock hook (233), the hook (2331) can move between the position of closing and opening the notch of the hook groove (2311); and Top hook (2332), arranged at the second end of the second lock hook (233), the top hook (2332) is in sliding fit with the first lock hook (232), and can be inserted into or withdrawn from the hook groove (2311) from the groove bottom of the hook groove (2311).

7. The load bearing device of claim 4, wherein, The mobile lock element (20) further comprises: A foolproof part (24) movably arranged in the mounting hole (211), the foolproof part (24) is configured to move in a third direction, so that the end of the foolproof part (24) can reciprocate between a position of extending outside the mobile lock element (20) or retracting into the mobile lock element (20); A first elastic part (25) acting on the foolproof part (24), so that the foolproof part (24) has a tendency to extend out of the mobile lock element (20); The linkage (21) is further provided with a pressing part (212), when the mobile lock element (20) is in a locked state, the pressing part (212) is offset from the foolproof part (24), so that the foolproof part (24) can move in a third direction, when the mobile lock element (20) is in an unlocked state, the pressing part (212) abuts against the foolproof part (24), so as to block the foolproof part (24) from extending out of the mobile lock element (20).

8. The load bearing device of claim 4, wherein, The linkage (21) is located in the mounting hole (211) and forms a guide slope (213) extending in the first direction and inclined in the first direction, and the outer surface of the driving part (22) forms a matching slope (221) matched with the guide slope (213); The driving part (22) is slidably abutted on the guide slope (213) through the matching slope (221), so that when the linkage (21) moves in the first direction, the driving part (22) is pushed to move in the second direction through the guide slope (213).

9. The load bearing device of claim 3, wherein, Further comprising: An assembly shell (26) having a hollow mounting cavity formed inside, the linkage (21) and the driving part (22) are movably arranged in the mounting cavity; A second elastic part (27) arranged in the mounting cavity and acting on the linkage (21) and / or the driving part (22), so that the mobile lock element (20) has a tendency to move to a locked state.

10. The load bearing device of claim 3, wherein, The unlocking device (30) further comprises: A connecting rod (34) provided with an idle stroke section (341), the connecting rod (34) is connected with the dial block assembly (31) or the linkage (21) through the idle stroke section (341), and opposite ends of the idle stroke section (341) are connected with the dial block assembly (31) or the linkage (21).

Images