Rotary self-locking mechanism and locking device

Abstract

The present invention provides a rotary self-locking mechanism and a locking device. The rotary self-locking mechanism includes: a lock housing, a rotary sliding member, an elastic member, a hook, and a male head; the lock housing is provided with a sliding cavity, and the opening of the sliding cavity is located on the surface of the lock housing facing the first direction; the rotary sliding member is slidably connected to the lock housing through a rotating side surface, and the rotary sliding member is rotatably connected to the lock housing along the axial straight line direction of the first direction through the rotating side surface; the rotary groove is a closed annular groove; a guiding column is fixedly arranged in the sliding cavity, and the guiding column is slidably connected to the rotary sliding member through the guiding column; the second card position is located on the side of the first card position facing the first direction; the rotary groove is used for guiding the guiding column; the male head is located on the side of the rotary sliding member facing the first direction; the hook is located on the side of the rotary sliding member facing the first direction, and the hook is fixedly connected to the rotary sliding member. The structure of the present invention is simple, the service life is long, and the locking is firm and stable.

Description

Technical Field

[0001] The present invention relates to the technical field of device latch connections, and particularly to a rotary self-locking mechanism and a locking device. Background Art

[0002] The self-locking mechanism can achieve rapid and efficient locking connections between two devices. However, the internal structure of the existing self-locking mechanisms is complex, and the structural durability is poor, seriously reducing the service life and locking effect of the self-locking mechanism. Summary of the Invention

[0003] To solve the above problems, the rotary self-locking mechanism and locking device provided by the present invention have a simple structure, a long service life, and firm and stable locking.

[0004] In a first aspect, the present invention provides a rotary self-locking mechanism, including: a lock housing, a rotary sliding member, an elastic member, a hook, and a male head;

[0005] The lock housing is provided with a sliding cavity, and the opening of the sliding cavity is located on the surface of the lock housing facing the first direction;

[0006] Both the rotary sliding member and the elastic member are located in the sliding cavity. The rotary sliding member includes a rotating side surface. The rotary sliding member is slidably connected to the lock housing along the axial linear direction of the first direction through the rotating side surface, and the rotary sliding member is rotatably connected to the lock housing along the axial linear direction of the first direction through the rotating side surface;

[0007] The rotary sliding member is provided with a rotary groove on the rotating side surface, and the rotary groove is a closed annular groove;

[0008] A guiding column is fixedly arranged in the sliding cavity, the guiding column is inserted into the rotary groove, and the guiding column is slidably connected to the rotary sliding member through the guiding column;

[0009] The elastic member is used to drive the rotary sliding member to move in the first direction;

[0010] The rotary groove includes a first card position and a second card position, and the second card position is located on the side of the first card position facing the first direction;

[0011] The rotary groove is used to guide the guiding column so that the guiding column reciprocates between the first card position and the second card position;

[0012] The male head is located on the side of the rotary sliding member facing the first direction, and the male head is used to push the rotary sliding member to slide in a direction opposite to the first direction;

[0013] The guide post is used to stop the rotary sliding member from moving in the first direction when the guide post is located at the first locking position;

[0014] The guide post is also used to stop the rotary sliding member from moving in the first direction when the guide post is located at the second locking position;

[0015] The hook is located on one side of the rotary sliding member facing the first direction, and the hook is fixedly connected to the rotary sliding member;

[0016] The hook is used to be locked and connected with the male head when the guide post is located at the first locking position.

[0017] Optionally, the rotary groove further includes: a first rotation point and a second rotation point;

[0018] Both the first rotation point and the second rotation point are located on one side of the second locking position facing the first direction, and the first rotation point and the second rotation point are respectively located on opposite sides of the axial line where the second locking position is located;

[0019] Wherein, the axial line where the second locking position is located is parallel or coincident with the first direction.

[0020] Optionally, a jack is provided on one surface of the lock housing along a second direction, the jack is communicated with the sliding cavity, and the second direction is perpendicular to the first direction;

[0021] The guide post passes through the jack and is inserted into the rotary groove;

[0022] A support plate is arranged on the outer side of the lock housing, the support plate is fixedly connected to the guide post, and the support plate is detachably and fixedly connected to the lock housing.

[0023] Optionally, the elastic member includes: a compression spring;

[0024] The compression spring is located on one side of the rotary sliding member away from the hook.

[0025] Optionally, a storage groove is provided on the surface of the rotary sliding member away from the hook, and one end of the compression spring is located in the storage groove.

[0026] Optionally, a first mounting member is arranged on the outer side of the lock housing, the first mounting member is fixedly connected to the lock housing; the first mounting member is used to mount the lock housing.

[0027] Optionally, the hook includes: a first connecting portion and a first locking portion;

[0028] One end of the first connecting portion facing the first direction is fixedly connected to the first locking portion, and the other end of the first connecting portion is fixedly connected to the rotary sliding member. At least one end of the first locking portion away from the first connecting portion extends out of the first connecting portion in a direction perpendicular to the first direction, so that the rotary sliding member, the first connecting portion and the second connecting portion form a card slot.

[0029] The male head includes: a second connecting portion and a second locking portion. One end of the second connecting portion away from the first direction is fixedly connected to the second locking portion.

[0030] When the guiding column is located at the first card position, one end of the second locking portion away from the second connecting portion is located in the card slot.

[0031] When the guiding column is located at the second card position, one end of the second locking portion away from the second connecting portion disengages from the card slot.

[0032] Optionally, a second mounting member is fixedly provided at one end of the second connecting portion away from the second locking portion, and the second mounting member is used for mounting the male head.

[0033] Optionally, the rotary self-locking mechanism further includes: a rotary member.

[0034] The rotary member is located on one side of the rotary sliding member facing the first direction, and the rotary member is in rolling connection or rotational connection along the first direction with the rotary sliding member.

[0035] Or, the rotary member is located on one side of the male head facing the rotary sliding member, and the rotary member is in rolling connection or rotational connection along the first direction with the male head.

[0036] In a second aspect, the present invention provides a locking device, including: a first connecting member, a second connecting member and the rotary self-locking mechanism according to any one of the above.

[0037] The first connecting member is fixedly connected to the lock housing, and the second connecting member is fixedly connected to the male head.

[0038] In the rotary self-locking mechanism and the locking device provided by the embodiments of the present invention, the rotary sliding member rotates under the guidance of the guiding column by providing an annular rotary groove on the circumferential side, so as to be able to change the position of the hook relative to the male head. By providing an elastic member, the guiding column can be snap-fitted at the first card position or the second card position, so that when the guiding column is located at the first card position, the male head can be stably locked with the hook; and when the guiding column is located at the second card position, the male head can be stably disengaged from the hook, so that the locking relationship between the male head and the hook is released. Description of the Drawings

[0039] Figure 1 Cross-sectional view of the rotary self-locking mechanism when the guide post is at the second card position in an embodiment of the present application;

[0040] Figure 2 Cross-sectional view of the rotary self-locking mechanism when the guide post is at the first card position in an embodiment of the present application;

[0041] Figure 3 Structural diagram of the rotary sliding member in an embodiment of the present application;

[0042] Figure 4 Schematic structural diagram of the rotary side surface in the unfolded state in an embodiment of the present application;

[0043] Figure 5 Exploded view of the rotary self-locking mechanism in an embodiment of the present application;

[0044] Figure 6 Structural diagram of the rotary self-locking mechanism in the state where the hook is locked and connected to the male head in an embodiment of the present application;

[0045] Figure 7 Cross-sectional view of the rotary sliding member in an embodiment of the present application.

[0046] Reference numerals

[0047] 1. Lock housing; 11. First mounting member; 111. First mounting hole; 12. Sliding cavity; 13. Insertion hole; 14. Threaded hole; 2. Rotary sliding member; 21. Rotary side surface; 22. Left surface; 23. Right surface; 24. Rotary groove; 241. First card position; 242. Second card position; 243. First rotation point; 244. Second rotation point; 25. Storage groove; 26. Storage slot; 3. Elastic member; 4. Hook; 41. First connection portion; 42. First locking portion; 43. Card slot; 5. Male head; 51. Second connection portion; 52. Second locking portion; 53. Second mounting member; 531. Second mounting hole; 54. Projection; 61. Guide post; 62. Support plate; 621. Counterbore; 7. Rotating member. Detailed implementation manners

[0048] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0049] In a first aspect, the present invention provides a rotary self-locking mechanism, in combination with Figure 1 andFigure 5 The rotary self-locking mechanism includes: a lock housing 1, a rotary sliding member 2, an elastic member 3, a hook 4, and a male head 5. Among them, the elastic member 3 is used to drive the rotary sliding member 2 to move in the first direction.

[0050] In this embodiment, the elastic member 3 is a compression spring; the first direction is the rightward direction, and the second direction is the downward direction.

[0051] Furthermore, the rotary sliding member 2 includes: a rotating side surface 21, a left surface 22, and a right surface 23. The lock housing 1 is provided with a sliding cavity 12, and the opening of the sliding cavity 12 is located on the right surface 23 of the lock housing 1; first mounting members 11 are fixedly arranged on the front and rear sides of the opening respectively, and the first mounting members 11 are fixedly connected to the lock housing 1; the first mounting members 11 are provided with first mounting holes 111, and the lock housing 1 is mounted through the cooperation of the first mounting holes 111 and screws.

[0052] Both the rotary sliding member 2 and the elastic member 3 are located in the sliding cavity 12. The rotary sliding member 2 is slidably connected to the lock housing 1 along the left-right direction through the rotating side surface 21, and the rotary sliding member 2 is rotatably connected to the lock housing 1 along its own axis direction through the rotating side surface 21; the rotary sliding member 2 is provided with a rotary groove 24 on the rotating side surface 21, and the rotary groove 24 is a closed annular groove.

[0053] Among them, combined with Figure 3 and Figure 4 , the shape of the rotary sliding member 2 is a cylindrical shape with its axis facing the left-right direction. The rotating side surface 21 is the side surface of the cylinder, the left surface 22 is the end surface of the cylinder facing the left, and the right surface 23 is the end surface of the cylinder facing the right. The rotary groove 24 includes: a first card position 241, a second card position 242, a first rotary point 243, and a second rotary point 244. The second card position 242 is located on the right side of the first card position 241; both the first rotary point 243 and the second rotary point 244 are located on the right side of the second card position 242, and the first rotary point 243 and the second rotary point 244 are respectively located on the opposite sides of the axial line where the second card position 242 is located; among them, the axial line where the second card position 242 is located is parallel or coincident with the first direction.

[0054] Combined with Figure 1 and Figure 5, a guide post 61 is fixedly arranged in the sliding cavity 12. The rotary groove 24 is used to guide the guide post 61 so that the guide post 61 reciprocates between the first clamping position 241 and the second clamping position 242. The guide post 61 is inserted into the rotary groove 24, and the guide post 61 is slidably connected to the rotary sliding member 2 through the guide post 61. Further, a jack 13 and a threaded hole 14 are formed in the upper surface of the lock housing 1, and a support plate 62 is arranged outside the lock housing 1. Among them, the jack 13 communicates with the sliding cavity 12. The bottom end of the guide post 61 passes through the jack 13 and is inserted into the rotary groove 24; the top end of the guide post 61 is fixedly connected to the support plate 62. A counterbore 621 is formed in the support plate 62, and the support plate 62 is detachably and fixedly connected to the lock housing 1 through the counterbore 621, the threaded hole 14 and a screw.

[0055] Combined with Figure 1 , Figure 2 and Figure 6 , both the hook 4 and the male head 5 are located on the right side of the rotary sliding member 2, and the hook 4 is fixedly connected to the rotary sliding member 2. The male head 5 is used to be inserted into the lock housing 1 through the opening and push the rotary sliding member 2 to slide in a direction opposite to the first direction. Further, a protrusion 54 is fixedly arranged at one end of the male head 5 facing the rotary sliding member 2, and the male head 5 is used to push the rotary sliding member 2 to move leftward through the protrusion 54; the guide post 61 is used to stop the rotary sliding member 2 from moving in the first direction when the guide post 61 is located at the first clamping position 241; the guide post 61 is also used to stop the rotary sliding member 2 from moving in the first direction when the guide post 61 is located at the second clamping position 242; the hook 4 is used to be locked and connected to the male head 5 when the guide post 61 is located at the first clamping position 241.

[0056] In this embodiment, the hook 4 includes: a first connecting portion 41 and a first locking portion 42. One end of the first connecting portion 41 facing right is fixedly connected to the first locking portion 42; the other end of the first connecting portion 41 facing left is fixedly connected to the right surface 23; one end of the first locking portion 42 away from the first connecting portion 41 extends out of the first connecting portion 41 in a direction perpendicular to the first direction, so that a clamping groove 43 is formed between the rotary sliding member 2, the first connecting portion 41 and the second connecting portion 51, that is, one end of the first locking portion 42 away from the first connecting portion 41 can be vertically pointed to the rotation center of the rotary sliding member 2, or can be in a direction vertically pointing away from the rotation center of the rotary sliding member 2. In this embodiment, an example is taken where one end of the first locking portion 42 away from the first connecting portion 41 can be vertically pointed to the rotation center of the rotary sliding member 2.

[0057] The male connector 5 includes a second connecting portion 51 and a second locking portion 52. One end of the second connecting portion 51 facing left is fixedly connected to the second locking portion 52. When the guiding post 61 is located at the first locking position 241, one end of the second locking portion 52 away from the second connecting portion 51 is located in the card slot 43, so as to realize the locking connection between the male connector 5 and the hook 4. When the guiding post 61 is located at the second locking position 242, one end of the second locking portion 52 away from the second connecting portion 51 disengages from the card slot 43, so as to facilitate the removal of the male connector 5 from the opening of the locking shell 1.

[0058] A second mounting member 53 is fixedly provided at one end of the second connecting portion 51 away from the second locking portion 52. The second mounting member 53 is of a plate-like structure. The second mounting member 53 is provided with a second mounting hole 531. The second mounting member 53 mounts the male connector 5 through the cooperation of the second mounting hole 531 and a screw.

[0059] In this embodiment, the compression spring is located on the left side of the rotary sliding member 2. A storage groove 25 is formed on the left surface 22. One end of the compression spring is located in the storage groove 25, and the other end of the compression spring faces left and abuts against the locking shell 1, so that a rightward thrust can always be applied to the rotary sliding member 2.

[0060] The rotary self-locking mechanism provided by the embodiment of the present invention can rotate under the guidance of the guiding post 61 by providing an annular rotary groove 24 on the peripheral side, so as to change the position of the hook 4 relative to the male connector 5. By providing the elastic member 3, the guiding post 61 can be clamped at the first locking position 241 or the second locking position 242, so that when the guiding post 61 is located at the first locking position 241, the male connector 5 can be stably locked with the hook 4. And when the guiding post 61 is located at the second locking position 242, the male connector 5 can be stably disengaged from the hook 4, so that the locking relationship between the male connector 5 and the hook 4 is released.

[0061] In an alternative embodiment, in combination with Figure 2 and Figure 7, the rotary self-locking mechanism further includes: a rotary member 7. The rotary member 7 is located on the right side of the rotary sliding member 2. Among them, the rotary member 7 can be a vertically placed turntable or a ball; when the rotary member 7 is a vertically placed turntable, the rotary member 7 can be rotatably connected to the rotary sliding member 2 along the first direction through a bearing on the right surface 23, or can be on the left side of the second locking portion 52 and rotatably connected to the second locking portion 52 along the first direction through a bearing; when the rotary member 7 is a ball, the rotary member 7 can be in rolling connection with the rotary sliding member 2 on the right surface 23, or can be at the left end of the second locking portion 52 and in rolling connection with the second locking portion 52.

[0062] In this embodiment, the rotary member 7 is a vertically placed turntable. A storage groove 26 is formed on the right surface 23. The turntable is located in the storage groove 26, and the surface of the turntable away from the rotary sliding member 2 is flush with the right surface 23. By providing the rotary member 7, when the male head 5 pushes the rotary sliding member 2 to rotate relative to the lock housing 1, the male head 5 can be made to contact the rotary member 7, thereby preventing the male head 5 from rubbing against the right surface 23 and affecting the rotation of the rotary sliding member 2.

[0063] In a second aspect, the present invention provides a locking device, including: a first connecting member, a second connecting member, and the rotary self-locking mechanism as described in any one of the above. The first connecting member is fixedly connected to the lock housing 1 through a first mounting member 11, and the second connecting member is fixedly connected to the male head 5 through a second mounting member 53. Among them, the first connecting member can be a door frame or a box body, a bracket, etc., and the second connecting member can be a door panel or a push plate, etc. In this embodiment, the first connecting member is a box body, the second connecting member is a door panel, and one end of the second connecting member is pivotally connected to the first connecting member.

[0064] The working principle of the push-button self-locking mechanism in the locking device is as follows:

[0065] During the process of changing the first connecting member from the closed state to the open state, at this time, the guide post 61 is located at the first card position 241, as Figure 2 shown. Due to the action of the spring, each structure remains balanced here. At this time, the compression amount of the spring is small, and the hook 4 is located below and latches the male head 5.

[0066] First, press the door panel where the male head 5 is located in the direction of the box body; at this time, the male head 5 is inserted into the lock housing 1 through the opening, thereby pushing the rotary sliding member 2 to move leftward. Combining Figure 3, during the process of the rotary sliding member 2 moving leftward, the guiding post 61 moves from the first clamping point 241 to the first rotation point 243. Since the guiding post 61 is in the guiding groove, at this time, the rotary sliding member 2 will also perform a rotary motion; as the rotary sliding member 2 moves backward, the guiding post 61 moves to the first rotation point 243. At this time, the right part of the guiding post 61 abuts against the rotary sliding member 2, so that the rotary sliding member 2 can no longer move leftward.

[0067] Then, stop pressing the door panel connected to the male head 5; under the action of the compression spring, the rotary sliding member 2 is pushed out a certain distance to the right. At this time, the rotary sliding member 2 rotates, and the guiding post 61 moves to the second clamping point 242 under the guidance of the rotary groove 24 and maintains balance at the second clamping point 242. At this time, the hook 4 of the rotary sliding member 2 rotates upward, as Figure 1 shown; after the male head 5 is no longer restricted by the hook 4, it moves out of the lock housing 1 through the opening to the right. At this time, the door panel and the box body are in an open state.

[0068] When the door panel and the box body are in an open state and need to be closed, first, press the door panel where the male head 5 is located toward the box body; the male head 5 will push the rotary sliding member 2 to move leftward for a certain distance. During the moving process, combined with Figure 3 , the rotary sliding member 2 rotates under the guidance of the guiding post 61, so that the guiding post 61 is at the second rotation point 244. At this time, the right part of the guiding post 61 abuts against the rotary sliding member 2, so that the rotary sliding member 2 can no longer move leftward.

[0069] Then, stop pressing the door panel connected to the male head 5; under the action of the compression spring, the rotary sliding member 2 is pushed out a certain distance to the right. At this time, the rotary sliding member 2 rotates, and the guiding post 61 moves to the first clamping point 241 under the guidance of the rotary groove 24 and maintains balance at the first clamping point 241. At this time, the hook 4 of the rotary sliding member 2 rotates downward, as Figure 2 shown; the male head 5 and the hook 4 are locked. At this time, the door panel and the box body are in a closed state.

[0070] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A rotary self-locking mechanism, characterized in that, Comprising: A lock housing, a rotary sliding member, an elastic member, a hook, and a male connector; The lock housing is provided with a sliding cavity, and the opening of the sliding cavity is located on the surface of the lock housing facing the first direction; Both the rotary sliding member and the elastic member are located in the sliding cavity. The rotary sliding member includes a rotating side surface. The rotary sliding member is slidably connected to the lock housing along the axial linear direction where the first direction is located through the rotating side surface, and the rotary sliding member is rotatably connected to the lock housing along the axial linear direction where the first direction is located through the rotating side surface; The shape of the rotary sliding member is cylindrical, and the rotary sliding member is provided with a rotary groove on the rotating side surface, and the rotary groove is a closed annular groove; A guiding column is fixedly arranged in the sliding cavity, the guiding column is inserted into the rotary groove, and the guiding column is slidably connected to the rotary sliding member through the rotary groove; The elastic member is used to drive the rotary sliding member to move in the first direction; The rotary groove includes a first locking point and a second locking point, and the second locking point is located on the side of the first locking point facing the first direction; The rotary groove is used to guide the guiding column so that the guiding column reciprocates between the first locking point and the second locking point; The male connector is located on the side of the rotary sliding member facing the first direction, and the male connector is used to push the rotary sliding member to slide in the direction opposite to the first direction; The guiding column is used to stop the rotary sliding member from moving in the first direction when the guiding column is located at the first locking point; The guiding column is also used to stop the rotary sliding member from moving in the first direction when the guiding column is located at the second locking point; The rotary groove further includes a first turning point and a second turning point; Both the first turning point and the second turning point are located on the side of the second locking point facing the first direction, and the first turning point and the second turning point are respectively located on the opposite sides of the axial straight line where the second locking point is located; the axial straight line where the second locking point is located is parallel or coincident with the first direction, and the first locking point, the first turning point, the second locking point, and the second turning point are arranged in sequence along the rotary groove; The hook is located on the side of the rotary sliding member facing the first direction, and the hook is fixedly connected to the rotary sliding member; The hook is used to be locked and connected to the male connector when the guiding column is located at the first locking point; 2. The rotary self-locking mechanism according to claim 1, characterized in that, A jack is provided on one surface of the lock housing along a second direction, and the jack is communicated with the sliding cavity, and the second direction is perpendicular to the first direction; The guiding column passes through the jack and is inserted into the rotary groove; A support plate is arranged on the outer side of the lock housing, the support plate is fixedly connected to the guiding column, and the support plate is detachably and fixedly connected to the lock housing; 3. The rotary self-locking mechanism according to claim 1, wherein, The elastic member includes a compression spring; The compression spring is located on the side of the rotary sliding member away from the hook; 4. The rotary self-locking mechanism according to claim 3, characterized in that, A storage groove is provided on the surface of the rotary sliding member away from the hook, and one end of the compression spring is located in the storage groove.

5. The rotary self-locking mechanism according to claim 1, characterized in that, A first mounting member is provided on the outer side of the lock housing, and the first mounting member is fixedly connected to the lock housing; the first mounting member is used for mounting the lock housing.

6. The rotary self-locking mechanism according to claim 1, wherein, The hook includes: a first connecting portion and a first locking portion; One end of the first connecting portion facing the first direction is fixedly connected to the first locking portion, the other end of the first connecting portion is fixedly connected to the rotary sliding member, and at least one end of the first locking portion away from the first connecting portion extends out of the first connecting portion in a direction perpendicular to the first direction, so that the rotary sliding member and the first connecting portion and the second connecting portion form a card slot; The male head includes: a second connecting portion and a second locking portion, and one end of the second connecting portion away from the first direction is fixedly connected to the second locking portion; When the guide post is located at the first card position, one end of the second locking portion away from the second connecting portion is located in the card slot; When the guide post is located at the second card position, one end of the second locking portion away from the second connecting portion is disengaged from the card slot.

7. The rotary self-locking mechanism according to claim 6, characterized in that, A second mounting member is fixedly provided at one end of the second connecting portion away from the second locking portion, and the second mounting member is used for mounting the male head.

8. The rotary self-locking mechanism according to claim 1, characterized in that, The rotary self-locking mechanism further includes: a rotary member; The rotary member is located on the side of the rotary sliding member facing the first direction, and the rotary member is in rolling connection or rotational connection along the first direction with the rotary sliding member; Alternatively, the rotary member is located on the side of the male head facing the rotary sliding member, and the rotary member is in rolling connection or rotational connection along the first direction with the male head.

9. A locking device, characterized in that, Comprising: A first connecting member, a second connecting member and the rotary self-locking mechanism according to any one of claims 1 to 8; The first connecting member is fixedly connected to the lock housing, and the second connecting member is fixedly connected to the male head.

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