Self-locking reset lock and luggage

Abstract

The self-locking reset lock comprises a lock hook and a lock body, and the lock body comprises a locking assembly, a first unlocking maintaining assembly and a second unlocking maintaining assembly; the locking assembly has elastic force and is configured to move at least among a locking position, a first unlocking position and a second unlocking position in sequence, the locking hook is locked when the locking assembly is located at the locking position, and the locking hook is unlocked when the locking assembly is located at the other positions. The locking assembly can be driven by an unlocking external force to move from a locking position to a first unlocking position, and can sequentially move from the first unlocking position to a second unlocking position and the locking position through an elastic force; after being unlocked, the locking assembly is locked at the first unlocking position through the first unlocking maintaining assembly; and then along with the fact that the lock hook leaves the lock body, on one hand, the second unlocking maintaining assembly pushes the first unlocking maintaining assembly to release the limiting function of the first unlocking maintaining assembly, and on the other hand, the locking assembly is locked at the second unlocking position, so that the locking assembly has the automatic reset capacity when locking is conducted again.

Description

Technical Field

[0001] The utility model belongs to the technical field of luggage, and particularly relates to a self-locking and resetting lock and a luggage. Background Art

[0002] In the field of travel supplies, as an indispensable carrying tool for people when traveling, the safety and convenience of travel suitcases have always been the focus of consumers' attention. Among them, the lock, as an important part of the travel suitcase, is directly related to the safety protection of luggage and the user experience. However, there are still some significant technical defects in the design and function of the travel suitcase locks widely used on the market at present.

[0003] Most of the existing travel suitcase locks adopt traditional mechanical lock structures, and their core unlocking mechanism relies on the user to manually operate the separation of the lock tongue and the lock hook. Although this unlocking method is simple and intuitive, there are many inconveniences in actual applications. Specifically, there is a problem of "automatic re-locking" in the design of the existing technology locks. That is, after the user forces the separation of the lock tongue and the lock hook, once the external force is released, the lock tongue will automatically reset under the action of the internal spring and re-combine with the lock hook, resulting in the phenomenon of "false unlocking". This problem is particularly prominent when the travel suitcase is loaded with heavy objects. Due to the pressure of the heavy objects, the elastic ability of the lock hook is limited, making it more difficult for the lock tongue to be completely released. Even if the user successfully separates the lock tongue and the lock hook, it may be re-locked due to the automatic return of the lock tongue, bringing great troubles and potential safety hazards to the user.

[0004] In addition, the adaptability of the existing locks is poor, and they cannot automatically adjust the elastic force of the lock hook according to different loading states (such as empty load, half load, full load). This results in that in the full load state, due to the uneven weight and distribution of the items in the box, the lock hook may not be able to pop up smoothly, thereby affecting the unlocking success rate and the user experience.

[0005] To sum up, the existing travel suitcase locks all have deficiencies in terms of convenience and are difficult to meet the needs of consumers for high-quality travel suitcase products. Therefore, it is necessary to carry out technological innovation and improvement on the travel suitcase locks to overcome the defects of the existing technology and improve the user experience and the safety of luggage. Summary of the Utility Model

[0006] To solve the above problems, the purpose of the utility model is to provide a self-locking and resetting lock and a luggage, and the self-locking and resetting lock can achieve unlocking and holding, and does not require continuous manual pressing after unlocking.

[0007] To achieve the above purpose, the technical solution of the utility model is as follows:

[0008] A self-locking reset lock, comprising a lock hook and a lock body, wherein the lock body includes a locking component, a first unlocking and holding component, and a second unlocking and holding component that are movably arranged, and the lock hook enters the lock body and cooperates with the locking component to achieve locking;

[0009] The locking component has an elastic force and is configured to be movable at least successively between a locking position, a first unlocking position, and a second unlocking position. When in the locking position, the lock hook is locked, and in other positions, the lock hook is unlocked. The second unlocking position is located between the locking position and the first unlocking position. The locking component can be driven by an unlocking external force to move from the locking position to the first unlocking position, and can move from the first unlocking position to the second unlocking position and the locking position successively by elastic force. The locking component is provided with a first unlocking and holding portion and a second unlocking and holding portion;

[0010] The first unlocking and holding component has an elastic force, one end of which is connected to the lock body, and the other end abuts against the locking component. The first unlocking and holding component is provided with a first unlocking and holding cooperation portion;

[0011] When the locking component moves to the first unlocking position, the first unlocking and holding portion moves to be opposite to the first unlocking and holding cooperation portion, and the first unlocking and holding component moves towards the locking component by elastic force, so that the first unlocking and holding cooperation portion moves to cooperate with the first unlocking and holding portion to lock the locking component at the first unlocking position;

[0012] The second unlocking and holding component has an elastic force and is provided with a second unlocking and holding cooperation portion. When the locking component is in the locking position, the lock hook abuts against the second unlocking and holding component to keep it away from the locking component and the first unlocking and holding component;

[0013] When the locking component is in the first unlocking position and the lock hook leaves the lock body, the second unlocking and holding component moves towards the locking component and the first unlocking and holding component by elastic force, so that the second unlocking and holding cooperation portion moves to be opposite to the second unlocking and holding portion, and the second unlocking and holding cooperation portion pushes the first unlocking and holding component to move away from the locking component, so that the locking component is unlocked at the first unlocking position and moves to the second unlocking position by elastic force, and the second unlocking and holding portion moves to cooperate with the second unlocking and holding cooperation portion to lock the locking component at the second unlocking position.

[0014] According to an embodiment of the present invention, the locking component includes a locking member and a first elastic member. The locking member is used to lock the lock hook, and the first unlocking and holding portion and the second unlocking and holding portion are arranged on the locking member;

[0015] The first elastic member applies an elastic force to the locking member to move the locking member from the first unlocking position to the second unlocking position and from the second unlocking position to the locking position;

[0016] The unlocking external force drives the locking member from the locking position to the first unlocking position by overcoming the elastic force of the first elastic member.

[0017] According to an embodiment of the present invention, the locking assembly includes a button, the button is connected to the locking member, and the unlocking external force is transmitted to the locking member through the button.

[0018] According to an embodiment of the present invention, the first unlocking and holding assembly includes a second elastic member, and the second elastic member has an elastic force that deforms and moves toward the locking assembly;

[0019] The second unlocking and holding mating portion pushes it away from the locking assembly by overcoming the elastic force of the second elastic member.

[0020] According to an embodiment of the present invention, the second elastic member is a limiting elastic piece, and the limiting elastic piece is disposed between the lock body and the locking assembly.

[0021] According to an embodiment of the present invention, the second unlocking and holding assembly includes an unlocking and holding member and a third elastic member. The unlocking and holding member is used to lock the locking assembly in the second unlocking position, and the second unlocking and holding mating portion is disposed on the unlocking and holding member;

[0022] The third elastic member applies an elastic force to the unlocking and holding member to move toward the locking assembly and the first unlocking and holding assembly;

[0023] The lock hook drives the unlocking and holding member to move and hold it at a position away from the locking assembly and the first unlocking and holding assembly by overcoming the elastic force of the third elastic member.

[0024] According to an embodiment of the present invention, a locking portion is provided on the locking assembly, and after the lock hook enters the lock body, it cooperates with the locking portion to achieve locking.

[0025] According to an embodiment of the present invention, the locking portion is a locking tongue, a locking hole is provided on the lock hook, and the locking hole hooks the locking tongue to achieve locking.

[0026] According to an embodiment of the present invention, the first unlocking and holding portion is a limiting hole, the first unlocking and holding mating portion is a limiting post, and the limiting post is disposed in the limiting hole to limit the locking assembly.

[0027] According to an embodiment of the present utility model, the second unlocking and retaining portion is a limiting step, and the second unlocking and retaining cooperating portion is a limiting arm. The limiting arm abuts against the limiting step to limit the locking assembly.

[0028] Based on the same concept, the present utility model further provides a luggage case, including at least one self-locking and resetting lock according to any one of the above embodiments. The luggage case includes a first box body and a second box body, and the locking hook and the lock body are respectively disposed on the first box body and the second box body.

[0029] Due to the above technical solutions adopted by the present utility model, compared with the prior art, it has the following advantages and positive effects:

[0030] The present utility model has a dual unlocking and retaining mechanism and an automatic reset locking function. After the locking assembly is unlocked, it is first locked at the first unlocking position by the first unlocking and retaining assembly, so that the unlocked state can be maintained during the stage when the locking hook has not left the lock body; then as the locking hook successfully leaves the lock body, the second unlocking and retaining assembly intervenes immediately. On the one hand, it pushes the first unlocking and retaining assembly to release its limiting function, and on the other hand, it locks the locking assembly at the second unlocking position, so that the locking assembly has the ability of automatic reset when locking again; then when the locking hook enters the lock body again, the pushing force of the locking hook is used to directly trigger the second unlocking and retaining assembly to release its limitation on the locking assembly, so that the locking assembly can automatically reset and lock the locking hook.

[0031] That is to say, the present utility model can not only maintain the unlocked state after unlocking, so that no manual continuous pressing is required after unlocking, but also automatically reset and lock the locking hook when locking again. The entire unlocking and relocking process only requires pressing the locking assembly once, without the need for the user to continuously intervene or perform multiple operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The following further describes in detail the specific embodiments of the present utility model with reference to the drawings, wherein:

[0033] Figure 1 is a schematic diagram of the luggage case of the present utility model;

[0034] Figure 2 is a partial schematic diagram of the installation of the self-locking and resetting lock of the present utility model Figure 1 ;

[0035] Figure 3 is a partial schematic diagram of the installation of the self-locking and resetting lock of the present utility model Figure 2 ;

[0036] Figure 4 is a schematic diagram of the whole self-locking and resetting lock of the present utility model;

[0037] Figure 5Schematic diagram of the self-locking and resetting lock of the present utility model with the housing removed;

[0038] Figure 6 Partial schematic diagram of the self-locking and resetting lock of the present utility model with the housing removed;

[0039] Figure 7 Partial installation schematic diagram of the self-locking and resetting lock of the present utility model with the housing removed;

[0040] Figure 8 Schematic diagram of the limit elastic piece of the present utility model;

[0041] Figure 9 Schematic diagram of the locking member of the present utility model;

[0042] Figure 10 Schematic diagram of the unlocking and holding member of the present utility model;

[0043] Figure 11 Schematic diagram of the cooperation between the locking member and the unlocking and holding member of the present utility model;

[0044] Figure 12 Cross-section of the housing of the present utility model Figure 1 ;

[0045] Figure 13 Cross-section of the housing of the present utility model Figure 2 .

[0046] Explanation of reference numerals:

[0047] 1. First box body; 2. Second box body; 3. Self-locking and resetting lock; 4. Lock hook; 5. Lock housing; 6. Button; 7. Locking member; 8. Hollow cavity; 9. Lock tongue; 10. Limit hole; 11. Limit step; 12. First spring; 13. Limit elastic piece; 14. Limit column; 15. Unlocking and holding member; 16. Limit arm; 17. Second spring; 18. Insertion hole; 19. Lock hole. Detailed implementation manners

[0048] The following further elaborates on the present utility model in detail in conjunction with the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the present utility model will be clearer. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise ratios, only for the purpose of conveniently and clearly assisting in explaining the embodiments of the present utility model.

[0049] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0050] Embodiment 1

[0051] Referring to Figures 1 to 13 , the core of the present utility model is to provide a self-locking reset lock, which includes a lock hook 4 and a lock body. The lock body includes a lock shell 5 and a locking assembly, a first unlocking and holding assembly, and a second unlocking and holding assembly that are movably arranged in the lock shell 5. The lock hook 4 enters the lock shell 5 and cooperates with the locking assembly to achieve locking, and the locking assembly, the first unlocking and holding assembly, and the second unlocking and holding assembly all have elastic forces.

[0052] The locking assembly is configured to be movable at least successively between a locking position, a first unlocking position, and a second unlocking position. When the locking assembly is in the locking position, it locks the lock hook 4, and when it is in the first unlocking position and the second unlocking position, it unlocks the lock hook 4.

[0053] The first unlocking and holding assembly and the second unlocking and holding assembly are respectively arranged on both sides of the locking assembly. The first unlocking and holding assembly is configured to be movable at least successively between a first position and a first unlocking cooperation position. The second unlocking and holding assembly is configured to be movable at least successively between a second position and a second unlocking cooperation position.

[0054] When the locking assembly is in the locking position, the first unlocking and holding assembly is in the first position, and the second unlocking and holding assembly is in the second position driven by the lock hook 4.

[0055] When the locking assembly is driven by an unlocking external force to overcome its own elastic force and moves from the locking position to the first unlocking position, the first unlocking and holding assembly is driven by its own elastic force to move to the first unlocking cooperation position and cooperate with the locking assembly to lock it in the first unlocking position. At this time, the lock hook 4 does not leave the lock shell 5, and the unlocking state can be maintained through the first unlocking and holding assembly during the stage when the lock hook 4 does not leave the lock body.

[0056] Then, as the lock hook 4 smoothly leaves the lock shell 5, the limit of the lock hook 4 on the second unlocking and holding assembly disappears. The second unlocking and holding assembly is driven by its own elastic force to move to the second unlocking cooperation position and simultaneously drives the first unlocking and holding assembly to move to the first position. Then, the locking assembly is driven by its own elastic force to move to the second unlocking position and cooperate with the second unlocking and holding assembly to be locked in the second unlocking position by it, so that the locking assembly can automatically reset and lock the lock hook 4, laying a foundation for subsequent automatic reset locking.

[0057] When the lock hook 4 enters the lock body again, it drives the second unlocking and holding assembly to move to the second position, and then the locking assembly is driven by its own elastic force to move to the locking position to lock the lock hook 4.

[0058] That is to say, the present utility model can not only maintain the unlocked state after unlocking, so that no manual continuous pressing is required after unlocking, but also automatically reset and lock the locking hook 4 when locking again. The whole unlocking and relocking process only needs to press the locking component once, without the need for continuous intervention or multiple operations by the user.

[0059] The direction in which the locking hook 4 enters the lock housing 5 and engages with the locking part is the locking direction, and the direction of leaving the lock housing 5 is the opening direction; the direction in which the locking component moves from the locking position to the first unlocking position is the unlocking direction. The second unlocking position is located between the locking position and the first unlocking position. The direction in which the locking component moves from the first unlocking position to the second unlocking position and from the second unlocking position to the locking position is the locking direction.

[0060] In this embodiment, the locking direction, the opening direction are perpendicular to the locking direction and the unlocking direction.

[0061] The locking component includes a button 6, a locking member 7 and a first elastic member. The locking member 7 is used to lock the locking hook 4 and to cooperate with the first unlocking holding component and the second unlocking holding component. The button 6 is connected to the locking member 7, and the unlocking external force is transmitted to the locking member 7 through the button 6. The first elastic member gives the locking member 7 an elastic force to move from the first unlocking position to the second unlocking position and from the second unlocking position to the locking position. The unlocking external force drives the locking member 7 from the locking position to the first unlocking position by overcoming the elastic force of the first elastic member.

[0062] Specifically, a locking part is provided on the locking member 7. After the locking hook 4 enters the lock body, it cooperates with the locking part to achieve locking. In this embodiment, the locking part is a locking tongue 9. A locking hole 19 is provided on the locking hook 4, and the locking hole 19 hooks the locking tongue 9 to achieve locking. And in this embodiment, the locking member 7 is provided with a hollow cavity 8, and the locking tongue 9 is arranged on one side of the hollow cavity 8 facing the unlocking direction. When the locking hook 4 is locked, it extends into the hollow cavity 8. In this embodiment, the first elastic member is a first spring 12. The first spring 12 is arranged between the lock housing 5 and the locking member 7, giving the locking member 7 an elastic force towards the locking direction, and a first spring 12 is provided at each end of the locking member 7.

[0063] The first unlocking holding component includes a second elastic member. The second elastic member has an elastic force to deform and move towards the locking member 7. The second unlocking holding component drives it from the first unlocking cooperation position to the first position by overcoming the elastic force of the second elastic member. In this embodiment, the second elastic member is a limiting elastic piece 13. A jack 18 is provided in the lock housing 5. One end of the limiting elastic piece 13 is inserted into the jack 18, and the other end abuts against the locking member 7 by its own elastic force. And in this embodiment, a limiting elastic piece 13 is provided at each end of the locking member 7.

[0064] The locking member 7 is provided with a first unlocking and retaining portion, and the limiting elastic piece 13 is provided with a first unlocking and retaining cooperation portion. The limiting elastic piece 13 is abutted against the locking member 7 by an elastic force, and the limiting elastic piece 13 cooperates with the first unlocking and retaining portion through the first unlocking and retaining cooperation portion to lock the locking member 7 at the first unlocking position. Specifically, the first unlocking and retaining portion is a limiting hole 10, and the first unlocking and retaining cooperation portion is a limiting post 14. The limiting post 14 is arranged in the limiting hole 10 to realize the limitation of the locking member 7. When the limiting post 14 is not opposite to the limiting hole 10, the limiting post 14 abuts against the outer wall surface of the locking member 7, and when the locking member 7 moves, the limiting post 14 slides on the locking member 7.

[0065] The second unlocking and retaining assembly includes an unlocking and retaining member 15 and a third elastic member. The unlocking and retaining member 15 is used to lock the locking member 7 at the second unlocking position. The third elastic member gives the unlocking and retaining member 15 an elastic force to move from the second position to the second unlocking cooperation position. The lock hook 4 drives the unlocking and retaining member 15 from the second unlocking cooperation position to the second position by overcoming the elastic force of the third elastic member. In this embodiment, the third elastic member is a second spring 17. The second spring 17 is arranged between the lock housing 5 and the unlocking and retaining member 15. The second spring 17 gives the unlocking and retaining member 15 an elastic force towards the opening direction, and in this embodiment, a second spring 17 is respectively arranged at both ends of the unlocking and retaining member 15.

[0066] The locking member 7 is provided with a second unlocking and retaining portion, and the unlocking and retaining member 15 is provided with a second unlocking and retaining cooperation portion. The unlocking and retaining member 15 cooperates with the second unlocking and retaining portion through the second unlocking and retaining cooperation portion to lock the locking member 7 at the second unlocking position. And the unlocking and retaining member 15 pushes the limiting elastic piece 13 to move away from the locking member 7 and deform through the second unlocking and retaining cooperation portion, so that it moves from the first unlocking cooperation position to the first position.

[0067] Specifically, the second unlocking and retaining portion is a limiting step 11, and the second unlocking and retaining cooperation portion is a limiting arm 16. The limiting arm 16 abuts against the limiting step 11 to realize the limitation of the locking member 7, that is, the limiting arm 16 blocks and limits the locking member 7, and the unlocking and retaining member 15 pushes the limiting elastic piece 13 to the first position through the limiting arm 16. In this embodiment, a limiting arm 16 is respectively arranged at both ends of the unlocking and retaining member 15, and a limiting step 11 is respectively arranged at both ends of the locking member 7.

[0068] Embodiment 2

[0069] Another core of the present utility model is to provide a luggage, including at least one self-locking and resetting lock 3 of Embodiment 1, including a first box body 1 and a second box body 2. The lock hook 4 and the lock body are respectively arranged on the first box body 1 and the second box body 2. In this embodiment, a self-locking and resetting lock 3 is respectively arranged at both ends of the luggage.

[0070] The working process of the present utility model will be further described as follows:

[0071] When unlocking, first press the button 6 towards the unlocking direction against the elastic force of the first spring 12. When the locking member 7 moves towards the unlocking direction to the first unlocking position, the limiting hole 10 on the locking member 7 moves opposite to the limiting post 14 on the limiting elastic piece 13. The limiting elastic piece 13 deforms and moves towards the locking member 7 by its own elastic force, so that the limiting post 14 enters the limiting hole 10 to achieve the locking and holding of the locking member 7 and lock it in the first unlocking position. At this time, since the locking hook 4 does not leave the lock housing 5, the locking hook 4 always presses against the unlocking holding member 15 against the elastic force of the second spring 17 to limit the unlocking holding member 15 in the second position.

[0072] Then when the first box body 1 and the second box body 2 are separated, the locking hook 4 moves away from the lock housing 5 towards the opening direction. The limiting effect of the locking hook 4 on the unlocking holding member 15 disappears. The unlocking holding member 15 moves towards the opening direction by the elastic force of the second spring 17. The limiting arm 16 on the unlocking holding member 15 first moves to the side of the limiting step 11 on the locking member 7 towards the locking direction, but does not contact the limiting step 11, that is, there is still a gap between the limiting arm 16 and the limiting step 11 at this time. Then the limiting arm 16 moves to contact the limiting elastic piece 13 and pushes the limiting elastic piece 13 against its elastic force, causing it to deform and move away from the locking member 7, so that the limiting post 14 leaves the limiting hole 10. At this time, the limiting effect of the limiting elastic piece 13 on the locking member 7 disappears. The locking member 7 moves towards the locking direction by the elastic force of the first spring 12 until it moves to the position where the limiting step 11 abuts against the limiting arm 16. At this time, the locking member 7 is limited in the second unlocking position by the unlocking holding member 15.

[0073] Finally, when the first box body 1 and the second box body 2 are closed, the locking hook 4 moves towards the locking direction and enters the lock housing 5, and then enters the hollow cavity 8 of the locking member 7. Subsequently, the locking hook 4 contacts the unlocking holding member 15 and pushes it against the elastic force of the second spring 17, causing the unlocking holding member 15 to move towards the locking direction. When the limiting arm 16 on the unlocking holding member 15 moves to be misaligned with the limiting step 11, the limiting effect of the unlocking holding member 15 on the locking member 7 disappears. The locking member 7 moves towards the locking direction by the elastic force of the first spring 12 to the locking position. The locking tongue 9 in the hollow cavity 8 enters the locking hole 19 of the locking hook 4 to achieve the locking of the locking hook 4, and the first box body 1 and the second box body 2 are locked.

[0074] The present utility model can maintain the unlocked state after unlocking, so that it is not necessary to continuously press manually after unlocking. Moreover, even if the luggage is placed flat on the table and there is a load inside the luggage, it is not necessary to keep pressing the two buttons 6 all the time to open the box. Just press the button 6, and the inside of the lock body always maintains the unlocked state until after opening the box, and then it can be locked again.

[0075] The utility model can also automatically reset and lock the locking hook 4 when locking again. The whole unlocking and relocking process only needs to press the button 6 once, without the need for continuous intervention or multiple operations by the user.

[0076] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments. Even if various changes are made to the present utility model, provided that these changes fall within the scope of the claims of the present utility model and its equivalent technologies, they still fall within the protection scope of the present utility model.

Claims

1. A self-locking reset lock, characterized in that: It comprises a lock hook and a lock body, wherein the lock body comprises a movable locking assembly, a first unlocking and holding assembly and a second unlocking and holding assembly, and the lock hook enters the lock body and cooperates with the locking assembly to achieve locking; The locking assembly has elastic force and is configured to be movable at least sequentially between a locking position, a first unlocking position, and a second unlocking position, wherein the locking hook is locked in the locking position and the locking hook is unlocked in other positions, and the second unlocking position is located between the locking position and the first unlocking position; The locking assembly can be driven by an unlocking external force to move from the locking position to the first unlocking position, and can be sequentially moved from the first unlocking position to the second unlocking position and the locking position by an elastic force; The locking assembly is provided with a first unlocking and holding portion and a second unlocking and holding portion; The first unlocking and holding component has elastic force and one end of the first unlocking and holding component is connected to the lock body, and the other end of the first unlocking and holding component is in contact with the locking component; the first unlocking and holding component is provided with a first unlocking and holding matching portion; When the locking assembly moves to the first unlocking position, the first unlocking holding portion moves to be opposite to the first unlocking holding matching portion, and the first unlocking holding assembly moves toward the locking assembly by elastic force so that the first unlocking holding matching portion moves to match with the first unlocking holding portion to lock the locking assembly in the first unlocking position; The second unlocking and holding component has elastic force and is provided with a second unlocking and holding matching portion; when the locking component is in the locking position, the locking hook abuts against the second unlocking and holding component to keep it away from the locking component and the first unlocking and holding component; When the locking assembly is in the first unlocking position and the locking hook leaves the lock body, the second unlocking and maintaining assembly moves toward the locking assembly and the first unlocking and maintaining assembly through elastic force, so that the second unlocking and maintaining matching portion moves to be opposite to the second unlocking and maintaining portion, and the second unlocking and maintaining matching portion pushes the first unlocking and maintaining assembly to move away from the locking assembly, so that the locking assembly is unlocked in the first unlocking position and moves to the second unlocking position through elastic force, and the second unlocking and maintaining portion moves to match with the second unlocking and maintaining matching portion, so that the locking assembly is locked in the second unlocking position.

2. The self-locking reset lock according to claim 1, characterized in that: The locking assembly comprises a locking member and a first elastic member, the locking member is used to lock the locking hook, and the first unlocking holding portion and the second unlocking holding portion are arranged on the locking member; The first elastic member imparts an elastic force to the locking member to move from the first unlocking position to the second unlocking position and from the second unlocking position to the locking position; The unlocking external force drives the locking member from the locking position to the first unlocking position by overcoming the elastic force of the first elastic member.

3. The self-locking reset lock according to claim 2, characterized in that: The locking assembly includes a button, which is connected to the locking member, and the unlocking external force is transmitted to the locking member through the button.

4. The self-locking reset lock according to claim 1, characterized in that: The first unlocking and maintaining assembly includes a second elastic member, and the second elastic member has an elastic force to deform and move toward the locking assembly; The second unlocking and retaining fitting portion pushes the second elastic member away from the locking assembly by overcoming its elastic force.

5. The self-locking reset lock according to claim 4, characterized in that: The second elastic member is a limiting spring sheet, and the limiting spring sheet is arranged between the lock body and the locking assembly.

6. The self-locking reset lock according to claim 1, characterized in that: The second unlocking and holding assembly comprises an unlocking and holding member and a third elastic member, wherein the unlocking and holding member is used to lock the locking assembly at the second unlocking position, and the second unlocking and holding matching portion is arranged on the unlocking and holding member; The third elastic member imparts an elastic force to the unlocking and retaining member to move toward the locking assembly and the first unlocking and retaining assembly; The lock hook drives the unlocking retaining member to move and retain the unlocking retaining member at a position away from the locking assembly and the first unlocking retaining assembly by overcoming the elastic force of the third elastic member.

7. The self-locking reset lock according to claim 1, characterized in that: The locking assembly is provided with a locking portion, and after the locking hook enters the lock body, it cooperates with the locking portion to achieve locking.

8. The self-locking reset lock according to claim 7, characterized in that: The locking part is a locking tongue, and the locking hook is provided with a locking hole, and the locking hole hooks the locking tongue to achieve locking.

9. The self-locking reset lock according to claim 1, characterized in that: The first unlocking and retaining portion is a limiting hole, and the first unlocking and retaining matching portion is a limiting column. The limiting column is arranged in the limiting hole to limit the locking assembly.

10. The self-locking reset lock according to claim 1, characterized in that: The second unlocking and retaining portion is a limiting step, and the second unlocking and retaining matching portion is a limiting arm, and the limiting arm abuts against the limiting step to limit the locking assembly.

11. A bag, characterized in that: It comprises at least one self-locking and resetting lock according to any one of claims 1 to 10, comprising a first box body and a second box body, wherein the lock hook and the lock body are respectively arranged on the first box body and the second box body.

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