Lock catch structure

Abstract

The utility model discloses a lock catch structure which comprises a lock catch seat and a lock hook assembly. The lock hook assembly comprises a lock hook seat, a first limiting part and a second limiting part, a rotating member; the rotating axis of the rotating piece and the rotating axis of the hooking piece are arranged at intervals; the locking structure is provided with a control part arranged on the side of the rotating piece in a protruding mode, and the locking structure is provided with a second limiting part; the locking structure is provided with a first position and a second position which are arranged in the left-right direction, and at the first position, the first limiting part limits the position of the second limiting part; at the second position, the second limiting part and the first limiting part are staggered; and the elastic structure enables the locking structure to have a trend of moving from the second position to the first position all the time. The lock catch structure cannot be easily unlocked due to vibration, and the safety of the storage box provided with the lock catch can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of latches, in particular to a latch structure. Background Art

[0002] Latches are generally used to connect two structures that can be separated from each other or are movably connected, so that the two structures are locked or can be opened and closed, such as locking and connecting the box body and the lid of a storage box, locking and connecting the cabinet door and the cabinet body of a storage cabinet, etc.

[0003] At present, most latches adopt a guiding and latching method to achieve the latching of two structures. Although the guiding and latching method simplifies the overall structure of the latch itself, the manufacturing cost of the storage box is reduced.

[0004] However, the locking strength of the guiding and latching method is insufficient. It is very easy for the latch to not only unlock when being impacted, but also be easily unlocked after being accidentally touched. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is: to provide a latch structure to solve one or more technical problems existing in the prior art, and at least provide a beneficial choice or create conditions.

[0006] The solution of the utility model to solve its technical problem is:

[0007] A latch structure, comprising a latch base and a latch hook assembly: the latch hook assembly includes:

[0008] A latch hook base, which is provided with a first limiting part;

[0009] A rotating member rotatably connected to the latch hook base;

[0010] A hook fastener rotatably connected to the rotating member, and the rotation axis of the rotating member is spaced from the rotation axis of the hook fastener;

[0011] A locking structure slidably connected to the rotating member, the locking structure is provided with a control part, the control part protrudes beside the rotating member, and the locking structure is provided with a second limiting part; the locking structure has a first position and a second position, the first position and the second position are arranged horizontally, in the first position, the second limiting part is correspondingly arranged with the first limiting part, and the first limiting part restricts the position of the second limiting part; in the second position, the second limiting part is misaligned with the first limiting part;

[0012] An elastic structure arranged between the rotating member and the locking structure, and the elastic structure makes the locking structure always have a tendency to move from the second position to the first position.

[0013] Through the above technical solution, when the locking structure is located in the first position, the first limiting part and the second limiting part are correspondingly arranged, the first limiting part limits the position of the second limiting part, and the second limiting part is used to cooperate with the first limiting part to limit the locking structure. By limiting the locking structure, the rotation of the rotating part can be limited, thereby realizing the locking of the position of the rotating part and the lock hook seat, and the hook member will not be separated from the lock seat, thereby ensuring that the lock structure will not be easily unlocked due to vibration, which is beneficial to ensuring the safety of the storage box installed with the lock.

[0014] When the locking structure is in the second position, the first limiting portion and the second limiting portion are staggered. At this time, the operator can pry the rotating part to make the rotating part move away from the lock hook seat to unlock the locking structure, or allow the rotating part to continue to move toward the lock hook seat.

[0015] As a further improvement of the above technical solution, the lock hook seat is provided with a lock connecting piece, the lock connecting piece extends out of the rotating piece, and the lock connecting piece is provided with a lock connecting hole.

[0016] Through the above technical solution, the lock connector is used to connect with the lock of the external device, so that the operator can lock the storage box to prevent others from opening the storage box, thereby improving the safety performance of the lock.

[0017] As a further improvement of the above technical solution, the locking structure is protruded with a position limiting structure, and the position limiting structure cooperates with the inner wall of the rotating part to limit the position of the locking structure.

[0018] Through the above technical solution, the position limiting structure is used to cooperate with the inner wall of the rotating member to limit the position of the locking structure, thereby preventing the locking structure from being separated from the rotating member after installation.

[0019] As a further improvement of the above technical solution, the first limiting portion is provided with a first guide surface, and the first guide surface is away from the lock hook seat; during the rotation of the rotating member toward the lock hook seat, the first guide surface drives the locking structure to move from the first position to the second position.

[0020] Through the above technical solution, in the process of the rotating part rotating toward the lock hook seat, after the first guide surface contacts the second limiting portion of the locking structure, the first guide surface can guide the locking structure to drive the locking structure to move from the first position to the second position, thereby realizing automatic movement of the locking structure, thereby reducing the trouble of the operator pressing the locking structure to continue to drive the rotating part to rotate toward the lock hook seat, so as to make the locking process simpler and more convenient.

[0021] As a further improvement of the above technical solution, the second limiting portion is provided with a second guiding surface, and the second guiding surface faces the locking hook seat.

[0022] Through the above technical solution, the second guiding surface can cooperate with the first guiding surface. When the rotating member is bent towards the locking hook seat, the locking structure will move closer to the locking hook seat as the rotating member moves. During the process of the locking structure approaching the locking hook seat, the second guiding surface will abut against the first guiding surface, and the first guiding surface and the second guiding surface jointly act to guide the locking structure, so that the locking structure automatically moves to the left or right, thereby reducing the trouble that the operator needs to press the locking structure to continue driving the rotating member to rotate towards the locking hook seat, and making the locking process simpler and more convenient.

[0023] As a further improvement of the above technical solution, the control portion is a sheet-like member, and the control portion is parallel to the side wall of the rotating member.

[0024] Through the above technical solution, by setting the control portion as a sheet-like structure, the contact area between the control portion and the operator's finger can be increased, thereby reducing the discomfort of the operator when controlling the locking structure.

[0025] As a further improvement of the above technical solution, the locking structure is provided with a guiding portion, and the guiding portion is slidably connected to the rotating member.

[0026] Through the above technical solution, by providing the guiding portion, the locking structure can be guided, thereby preventing the locking structure from deviating during movement and causing the locking structure to malfunction, so as to ensure the normal operation of this lock.

[0027] As a further improvement of the above technical solution, the elastic structure is a helical spring, and both ends of the elastic structure are respectively abutted against the inner wall of the rotating member and the locking structure.

[0028] As a further improvement of the above technical solution, the elastic structure is sleeved on the guiding portion.

[0029] Through the above technical solution, the guiding portion can limit the position of the elastic structure, and there is no need to additionally design a structure for limiting the elastic structure, thereby reducing the structural complexity of the lock.

[0030] As a further improvement of the above technical solution, the number of the guiding portions is two, both of the two guiding portions are arranged at the same end of the locking structure, and the two guiding portions are arranged in parallel.

[0031] The beneficial effect of the present utility model is that this lock will not be easily unlocked due to vibration, which is beneficial to ensuring the safety of the storage box installed with this lock.

[0032] The present utility model is used in the technical field of locks. Brief Description of the Drawings

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below. Obviously, the described drawings are only a part of the embodiments of the present utility model, rather than all embodiments. Those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative efforts.

[0034] Figure 1 is the overall structural schematic diagram of the locking state of the embodiment of the present utility model;

[0035] Figure 2 is the overall structural schematic diagram of the unlocking state of the embodiment of the present utility model;

[0036] Figure 3 is the overall structural schematic diagram of another angle of the unlocking state of the embodiment of the present utility model.

[0037] In the figure, 100, lock hook seat; 110, first limiting part; 111, first guiding surface; 120, lock connecting part; 200, rotating part; 210, inclined bending part; 300, hook fastener; 310, fastening part; 400, locking structure; 410, control part; 420, second limiting part; 421, second guiding surface; 430, position limiting structure; 440, guiding part; 500, elastic structure; 600, lock seat. Detailed Description of the Embodiments

[0038] The following will clearly and completely describe the concept, specific structure and technical effects generated by the present utility model in combination with the embodiments and the drawings, so as to fully understand the purpose, features and effects of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative efforts all fall within the scope of protection of the present utility model. In addition, all the connection / connection relationships mentioned in the text do not refer to the direct connection of components alone, but refer to the formation of a more optimal connection structure by adding or reducing connection accessories according to specific implementation situations. The various technical features in the present invention can be combined with each other without conflicting with each other.

[0039] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0040] In the description of the present utility model, the meaning of "a number of" is one or more, the meaning of "a plurality of" is two or more, and understandings such as "greater than", "less than", "exceeding", etc. do not include the base number, and understandings such as "above", "below", "within", etc. include the base number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0041] Refer to Figures 1 to 3 , a buckle structure, including a hook assembly and a buckle seat 600.

[0042] The hook assembly and the buckle seat 600 are respectively fixedly installed on two structures that can be separated from each other or movably connected. Here, a storage box is taken as an example. In this embodiment, the buckle seat 600 is fixedly connected to the box cover by screws, and the hook assembly is installed on the box body. In other embodiments, this buckle structure can also be applied to other objects that need to be locked, such as tents, and those skilled in the art can apply this buckle structure to different objects according to actual needs.

[0043] Specifically, in this embodiment, the hook assembly includes: a hook seat 100, a rotating member 200, a hook fastener 300, a locking structure 400, and an elastic structure 500.

[0044] The hook seat 100 is fixedly connected to the box body of the storage box by screws.

[0045] The hook seat 100 is provided with a first limiting portion 110, and the first limiting portion 110 is a sheet metal bending member. Specifically, in this embodiment, the first limiting portion 110 is provided with a first guiding surface 111, the first guiding surface 111 is set as a semi-cylindrical surface, the first guiding surface 111 faces away from the hook seat 100, and in other embodiments, the first guiding surface 111 can also be set as a semi-elliptical cylindrical surface, and those skilled in the art can select the structure of the first guiding surface 111 according to actual needs.

[0046] The hook seat 100 is provided with a lock connecting member 120, the rotating member 200 is provided with a through hole, the lock connecting member 120 passes through the rotating member 200 from the through hole and extends in a direction away from the storage box, and a lock connection hole is provided at one end of the lock connecting member 120 extending out of the rotating member 200. The lock connecting member 120 is used to connect with an external lock, so that an operator can lock the storage box to prevent others from opening the storage box, and the safety performance of the buckle can be improved.

[0047] The rotating member 200 is rotatably connected to the hook seat 100, and the rotating member 200 rotates around a first axis.

[0048] The end of the rotating member 200 away from the first axis (i.e. the end of the rotating member 200 away from the hinge end thereof) is provided with an inclined bending part 210, which extends in a direction away from the storage box. By providing the inclined bending part 210, the operator can bend the rotating member 200 more easily.

[0049] Specifically, in the present embodiment, the tilting and bending portion 210 is provided with an anti-slip pattern, which is a plurality of hemispherical raised structures, and the plurality of hemispherical raised structures are evenly arranged on the tilting and bending portion 210. In other embodiments, the anti-slip pattern can also be set as a strip-shaped raised pattern or a mesh groove structure. Those skilled in the art can select the specific structure of the anti-slip pattern according to actual needs.

[0050] The hook fastener 300 is rotatably connected to the rotating member 200, and the hook fastener 300 rotates around the second axis. A buckling portion 310 is provided at one end of the hook fastener 300 away from the second axis. The buckling portion 310 is used to buckle and connect with the lock seat 600 to lock the box cover and the box body. The second axis is parallel to the first axis and the second axis is spaced apart from the first axis, so that when the operator bends the rotating member 200 to rotate, one end of the hook fastener 300 will be driven to move around a circular arc in a direction close to the lock seat 600, so that the hook fastener 300 can be disengaged from the lock seat 600.

[0051] The locking structure 400 is provided with a second position and a first position arranged along the left and right sides. The locking structure 400 is provided with a control part 410, and the control part 410 is protrudingly arranged on the side of the rotating member 200 (the left side or the right side of the rotating member 200). The operator presses the control part 410 to make the locking structure 400 move along the left and right direction relative to the rotating member 200, so that the locking structure 400 switches between the second position and the first position.

[0052] The locking structure 400 is provided with a second limiting portion 420. When the locking structure 400 is located at the first position, the first limiting portion 110 and the second limiting portion 420 are correspondingly arranged. The first limiting portion 110 limits the position of the second limiting portion 420. The second limiting portion 420 is used to cooperate with the first limiting portion 110 to limit the locking structure 400. By limiting the locking structure 400, the rotation of the rotating member 200 can be limited, thereby ensuring that the lock will not be easily unlocked due to vibration, which is conducive to ensuring the safety of the storage box installed with the lock. When the locking structure 400 is located at the second position, the first limiting portion 110 and the second limiting portion 420 are misaligned. At this time, the operator can bend the rotating member 200 to unlock the lock.

[0053] Specifically, in this embodiment, the second limiting portion 420 is provided with a second guiding surface 421. The second guiding surface 421 is set as an inclined surface. The second guiding surface 421 can cooperate with the first guiding surface 111. When the rotating member 200 is bent towards the direction close to the locking hook seat 100, the locking structure 400 will move close to the locking hook seat 100 along with the movement of the rotating member 200. During the process of the locking structure 400 approaching the locking hook seat 100, the second guiding surface 421 will abut against the first guiding surface 111. The first guiding surface 111 and the second guiding surface 421 jointly act to guide the locking structure 400, so that the locking structure 400 automatically moves to the left or right, thereby reducing the trouble that the operator needs to press the locking structure 400 to continue driving the rotating member 200 to rotate towards the locking hook seat, and making the locking process simpler and more convenient.

[0054] The locking structure 400 is convexly provided with a position limiting structure 430. The position limiting structure 430 is arranged inside the rotating member 200. The position limiting structure 430 is used to cooperate with the inner wall of the rotating member 200 to limit the position of the locking structure 400. Thus, it is avoided that the locking structure 400 is separated from the rotating member 200 after being installed.

[0055] Specifically, in this embodiment, the position limiting structure 430 is formed by bending through a stamping process. The position limiting structure 430 is stamped after the locking structure 400 is installed on the rotating member 200. In other embodiments, the position limiting structure 430 can also be set as a convex structure fixed by welding. Those skilled in the art can select the forming method of the position limiting structure 430 according to actual needs.

[0056] Specifically, in this embodiment, the control portion 410 is set as a sheet-like structure. The control portion 410 is arranged parallel to the side wall of the rotating member 200. By setting the control portion 410 as a sheet-like structure, the contact area between the control portion 410 and the operator's finger can be increased, thereby reducing the discomfort of the operator when controlling the locking structure 400.

[0057] Specifically, in this embodiment, the locking structure 400 is provided with two guiding portions 440. The two guiding portions 440 are arranged in parallel. Guide holes are formed in the side wall of the rotating member 200. The guiding portions 440 correspond to and match the guide holes one by one. The guiding portions 440 pass through the guide holes and are slidably connected with the guide holes. By providing the guiding portions 440, the locking structure 400 can be guided, thereby avoiding the locking structure 400 from deviating during movement and causing the locking structure 400 to fail to work properly, so as to ensure the normal operation of this lock.

[0058] An elastic structure is disposed between the locking structure 400 and the rotating member 200. Specifically, in this embodiment, the elastic structure is arranged as a helical spring. In other embodiments, the elastic structure can also be arranged as other conventional elastic components such as spring pieces. Those skilled in the art can select the elastic structure according to actual needs.

[0059] Specifically, in this embodiment, the elastic structure is sleeved on the guiding portion 440. The two ends of the elastic structure are respectively in contact with the inner wall of the locking structure 400 and the rotating member 200. The guiding portion 440 can limit the position of the elastic structure, eliminating the need for an additional structure to limit the elastic structure, thereby reducing the structural complexity of the lock.

[0060] The elastic structure causes the locking structure 400 to always have a tendency to move from the second position to the first position.

[0061] The above has specifically described the preferred embodiments of the present invention, but the present invention is not limited to the described embodiments. Those skilled in the art can make various equivalent variations or substitutions without departing from the spirit of the present invention, and these equivalent variations or substitutions are all included within the scope defined by the claims of this application.

Claims

1. Locking structure, characterized by: It includes a lock seat and a lock hook assembly: the lock hook assembly includes: A lock hook seat, wherein the lock hook seat is provided with a first limiting portion; A rotating member rotatably connected to the lock hook seat; A hook fastener rotatably connected to the rotating member, wherein the rotation axis of the rotating member is spaced apart from the rotation axis of the hook fastener; A locking structure slidably connected to the rotating member, the locking structure is provided with a control portion, the control portion is protrudingly arranged on the side of the rotating member, and the locking structure is provided with a second limiting portion; the locking structure is provided with a first position and a second position, the first position and the second position are arranged along the left and right sides, in the first position, the second limiting portion is arranged corresponding to the first limiting portion, and the first limiting portion limits the position of the second limiting portion; in the second position, the second limiting portion is staggered with the first limiting portion; An elastic structure is arranged between the rotating member and the locking structure, and the elastic structure enables the locking structure to always have a tendency to move from the second position to the first position.

2. The lock structure according to claim 1, characterized in that: The lock hook seat is provided with a lock connecting piece, the lock connecting piece extends out of the rotating piece, and the lock connecting piece is provided with a lock connecting hole.

3. The lock structure according to claim 1, characterized in that: A position limiting structure is protruded from the locking structure, and the position limiting structure cooperates with the inner wall of the rotating member to limit the position of the locking structure.

4. The lock structure according to claim 1, characterized in that: The first limiting portion is provided with a first guide surface, and the first guide surface is away from the lock hook seat; during the rotation of the rotating member toward the lock hook seat, the first guide surface drives the locking structure to move from the first position to the second position.

5. The lock structure according to claim 4, characterized in that: The second limiting portion is provided with a second guide surface, and the second guide surface faces the lock hook seat.

6. The lock structure according to claim 1, characterized in that: The control part is a sheet-shaped component, and the control part is parallel to the side wall of the rotating member.

7. The lock structure according to claim 1, characterized in that: The locking structure is provided with a guide portion, and the guide portion is slidably connected to the rotating member.

8. The lock structure according to claim 7, characterized in that: The elastic structure is a coil spring, and two ends of the elastic structure are respectively in contact with the inner wall of the rotating member and the locking structure.

9. The lock structure according to claim 8, characterized in that: The elastic structure is sleeved on the guide portion.

10. The lock structure according to claim 7, characterized in that: The number of the guide parts is two, and the two guide parts are both arranged at the same end of the locking structure, and the two guide parts are arranged in parallel.

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