Four-core magnetic lock structure

Abstract

The utility model relates to the technical field of magnetic lock structure, and discloses a four-core magnetic lock structure, including a lock shell, a lock plate, two long lock assemblies and two short lock assemblies, the two long lock assemblies are respectively assembled with the lock plate, the two short lock assemblies are respectively arranged correspondingly with the lock plate, the lock plate has two short lock grooves, the lock shell has two long lock grooves, the lock plate is pressed and arranged to move, the lock plate is used to drive the long lock assembly to move, the short lock assembly and the short lock groove are arranged to lock or unlock, and the long lock assembly and the long lock groove are arranged to lock or unlock. When locking, the lock plate moves to drive the two long lock assemblies to move until the long lock assembly and the long lock groove are embedded and locked, and the short lock assembly and the short lock groove are embedded and locked; in this way, through the coordinated locking of the two long lock assemblies and the two short lock assemblies, the four-core locking is adopted to greatly improve the locking firmness, and it is not easy to be unlocked when subjected to strong knocking in any direction, thereby ensuring the reliability of the magnetic lock.

Description

Technical Field

[0001] The utility model patent relates to the technical field of magnetic lock structure, specifically, to a four-core magnetic lock structure. Background Art

[0002] Magnetic locks use the principle of electromagnetism. When current passes through silicon steel sheets, the electromagnetic lock will generate a strong suction force to achieve locking. Magnetic locks are often used in monitoring or guardianship products. They are worn by straps to lock and unlock objects or people.

[0003] For example, a prior patent with authorization announcement number CN209528095U discloses a magnetic lock and a child-proof belt with a magnetic lock. The magnetic lock includes a male buckle and a female buckle. The female buckle is provided with a cavity with at least one side open, and the male buckle is inserted into the cavity from the open side. Its characteristics are: a locking mechanism is provided in the cavity, and the male buckle is provided with a hook; the cavity at least includes a lower cavity wall; the lower end of the locking mechanism is connected to the lower cavity wall, and the upper end of the locking mechanism is inserted into or leaves the hook to lock or unlock the male buckle and the female buckle.

[0004] In the prior art, the locking mechanism relies solely on the locking of the male buckle and the female buckle, which is not sufficiently secure and is easily damaged by external force, thus affecting the monitoring or surveillance effect. Utility Model Content

[0005] The utility model aims to provide a four-core magnetic lock structure, aiming to solve the problem of insufficient locking reliability of magnetic locks in the prior art.

[0006] The utility model is implemented as follows: a four-core magnetic lock structure includes a lock shell, a lock plate, two long lock assemblies and two short lock assemblies, wherein the lock plate, the two long lock assemblies and the two short lock assemblies are respectively assembled in the lock shell, the two long lock assemblies are respectively assembled with the lock plate, the two short lock assemblies are respectively arranged corresponding to the lock plate, the lock plate has two short lock grooves, the lock shell has two long lock grooves, the lock plate is pressed to be arranged to move, the lock plate is used to drive the long lock assembly to be arranged to move, the short lock assembly is arranged to be locked or unlocked with the short lock groove, and the long lock assembly is arranged to be locked or unlocked with the long lock groove.

[0007] Furthermore, the long lock assembly includes a long lock shaft, a long lock spring and a long lock head, the long lock spring is sleeved on the long lock shaft, the long lock shaft is used to be embedded in the long lock slot to be locked or disengaged from the unlocked state, the long lock spring is used to apply elastic force to cause the long lock shaft to be embedded in the long lock slot to be in a locked state; the long lock shaft and the long lock head are assembled, and the long lock head is used to be pulled by the magnetic force of the unlocking device to disengage the long lock shaft from the long lock slot to be in an unlocked state.

[0008] Furthermore, the lock plate has a middle plate groove, the long lock shaft has a shaft ring, the shaft ring is convexly arranged, one end of the long lock spring is docked with the shaft ring, the long lock spring and the shaft ring are respectively in the middle plate groove, and the other end of the long lock spring is docked with the lock plate; when unlocked, the long lock spring is in a compressed state.

[0009] Furthermore, the long lock shaft has a shaft connection section, and the shaft connection section is threadedly connected to the long lock head.

[0010] Furthermore, the long lock head includes four locking cut surfaces, and the four locking cut surfaces are arranged correspondingly at four corners. The locking cut surfaces are arranged to extend horizontally along the axial direction of the long lock shaft, and the four locking cut surfaces are synchronously arranged to be flat and in contact with the lock shell.

[0011] Furthermore, the locking direction and unlocking direction of the two long lock assemblies are arranged in opposite directions.

[0012] Furthermore, the short lock assembly includes a short lock shaft, a short lock spring and a short lock head, one end of the short lock spring is docked with the lock housing, the other end of the short lock spring is docked with the inner end of the short lock head, the outer end of the short lock head is docked with the short lock shaft, and the short lock shaft and the short lock slot are locked or unlocked; the short lock spring is used to apply elastic force to cause the short lock shaft to be embedded in the short lock slot in a locked state, and the short lock head is used to pull the short lock shaft out of the short lock slot to an unlocked state under the magnetic force of the unlocker.

[0013] Furthermore, the short lock head has a short lock cavity, the short lock cavity is recessed in a direction away from the short lock spring, the short lock cavity has a bottom cavity wall, the short lock spring is embedded in the short lock cavity, and the short lock spring and the bottom cavity wall are butt-jointed.

[0014] Furthermore, the shaft head at the outer end of the short lock shaft is arranged in an arched arc shape in a direction away from the short lock head; the short lock groove has a short groove wall, and the short groove wall is arranged in an arc shape; when in the locked state, the shaft head and the short groove wall are arranged in a flat and abutting manner.

[0015] Furthermore, along the length direction of the lock plate, the two short lock grooves are arranged correspondingly at both ends, the two short lock shafts are arranged correspondingly at both ends, and the short lock spring applies elastic force in the direction toward the lock plate to cause the short lock shaft to be embedded in the short lock groove; along the width direction of the lock plate, the short lock groove is arranged between the two long lock assemblies.

[0016] Compared with the prior art, the four-core magnetic lock structure provided by the utility model has a locking mechanism in which the lock plate is pressed and arranged to move relative to the lock shell, and in the process of movement, the lock plate drives the two long lock assemblies to move, and the lock plate moves relative to the two short lock assemblies until the two long lock assemblies are respectively embedded and locked with the two long lock grooves, and the two short lock assemblies are respectively embedded and locked with the two short lock grooves; when unlocking, the unlocker utilizes the magnetic force of the unlocker to achieve the disengagement and unlocking of the long lock assembly and the disengagement and unlocking of the short lock assembly from the short lock groove; in this way, through the coordinated locking of the two long lock assemblies and the two short lock assemblies, the four-core locking is adopted to greatly improve the locking firmness, and it is not easy to disengage when subjected to strong knocking in any direction, thereby ensuring the reliability of the magnetic lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an exploded schematic diagram of the four-core magnetic lock structure provided by the utility model;

[0018] Figure 2 It is a cross-sectional schematic diagram of a long lock assembly of a four-core magnetic lock structure provided by the utility model in a locked state;

[0019] Figure 3 It is a cross-sectional schematic diagram of a short lock assembly of a four-core magnetic lock structure provided by the utility model in a locked state;

[0020] Figure 4 It is a cross-sectional schematic diagram of a long lock assembly of a four-core magnetic lock structure provided by the utility model in an unlocked state;

[0021] Figure 5 It is a cross-sectional schematic diagram of a short lock assembly of a four-core magnetic lock structure provided by the utility model in an unlocked state;

[0022] Figure 6 It is a three-dimensional schematic diagram of a long lock assembly of a four-core magnetic lock structure provided by the utility model;

[0023] Figure 7 It is a three-dimensional schematic diagram of a short lock assembly of a four-core magnetic lock structure provided by the utility model;

[0024] Figure 8 It is a three-dimensional schematic diagram of a lock plate of a four-core magnetic lock structure provided by the utility model. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0026] The implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0027] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present utility model, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it 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 direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0028] Reference Figure 1-8 As shown, it is a preferred embodiment provided by the utility model.

[0029] A four-core magnetic lock structure comprises a lock housing 1, a lock plate 2, two long lock assemblies 3 and two short lock assemblies 4. The lock plate 2, the two long lock assemblies 3 and the two short lock assemblies 4 are respectively assembled in the lock housing 1. The two long lock assemblies 3 are respectively assembled with the lock plate 2, and the two short lock assemblies 4 are respectively arranged corresponding to the lock plate 2. The lock plate 2 has two short lock grooves 21, and the lock housing 1 has two long lock grooves 11. The lock plate 2 is pressed to be arranged to move, and the lock plate 2 is used to drive the long lock assembly 3 to be arranged to move. The short lock assembly 4 and the short lock groove 21 are arranged to be locked or unlocked, and the long lock assembly 3 and the long lock groove 11 are arranged to be locked or unlocked.

[0030] The above-mentioned four-core magnetic lock structure, when locking, the lock plate 2 is subjected to the pressing force and is arranged to move relative to the lock shell 1. During the movement of the lock plate 2, the two long lock assemblies 3 are driven to be arranged to move, and the lock plate 2 moves relative to the two short lock assemblies 4 until the two long lock assemblies 3 are respectively embedded and locked with the two long lock grooves 11, and the two short lock assemblies 4 are respectively embedded and locked with the two short lock grooves 21; when unlocking, the unlocker uses magnetic force to achieve the disengagement and unlocking of the long lock assembly 3 and the long lock groove 11, and the disengagement and unlocking of the short lock assembly 4 and the short lock groove 21; in this way, through the coordinated locking of the two long lock assemblies 3 and the two short lock assemblies 4, the four-core locking is adopted to greatly improve the locking firmness, and it is not easy to be unlocked even if it is strongly knocked in any direction, thereby ensuring the reliability of the magnetic lock.

[0031] The lock plate 2 is subjected to a pressing force, and the four-core magnetic lock structure can be converted into a locked state by pressing with a finger.

[0032] The long lock assembly 3 includes a long lock shaft 31, a long lock spring 32 and a long lock head 33. The long lock spring 32 is sleeved on the long lock shaft 31. The long lock shaft 31 is used to be embedded in the long lock groove 11 to be locked or disengaged from the unlocking. The long lock spring 32 is used to apply elastic force to cause the long lock shaft 31 to be embedded in the long lock groove 11 to be in a locked state; the long lock shaft 31 and the long lock head 33 are assembled and arranged, and the long lock head 33 is used to be pulled by the magnetic force of the unlocking device to disengage the long lock shaft 31 from the long lock groove 11 to be in an unlocked state.

[0033] When in the unlocked state, the long lock spring 32 is blocked by the lock shell 1 and is in a compressed state. When locked, the lock plate 2 is moved by the pressing force and synchronously drives the long lock shaft 31, the long lock spring 32 and the long lock head 33 to move until the long lock shaft 31 moves to a corresponding arrangement with the long lock groove 11. Under the elastic force of the long lock spring 32, the long lock shaft 31 is embedded in the long lock groove 11 to achieve locking. When unlocking again, the unlocker is used to overcome the elastic force of the long lock spring 32 through magnetic force, and pull the long lock shaft 31 out of the long lock groove 11 to achieve unlocking.

[0034] The lock plate 2 has a middle plate groove, and the long lock shaft 31 has an axle ring, which is convexly arranged. One end of the long lock spring 32 is docked with the axle ring. The long lock spring 32 and the axle ring are respectively in the middle plate groove, and the other end of the long lock spring 32 is docked with the lock plate 2. When unlocked, the long lock spring 32 is in a compressed state.

[0035] In this way, under the action of the shaft ring, one end of the long lock spring 32 is limited, which facilitates the switching of the long lock spring 32 between the compressed and extended states, and under the action of the middle plate groove, the long lock spring 32 is restricted, which facilitates the assembly of the long lock spring 32.

[0036] The long lock shaft 31 has an axial connection section, which is threadedly connected to the long lock head 33; in this way, according to the embedding depth of the long lock shaft 31, the embedding depth of the long lock shaft 31 can be adjusted before leaving the factory to meet different assembly requirements and facilitate the assembly of the long lock assembly 3.

[0037] The long lock head 33 includes four locking cut surfaces, which are arranged at four corresponding corners. The locking cut surfaces are arranged to extend horizontally in the axial direction along the long lock shaft 31 , and the four locking cut surfaces are synchronously arranged to be flat and in contact with the lock housing 1 .

[0038] In this way, under the cooperation of the lock cut surface and the lock housing 1, the erroneous rotation and non-axial movement of the long lock head 33 are avoided, and the assembly stability of the long lock head 33 is enhanced.

[0039] The locking direction and unlocking direction of the two long lock assemblies 3 are arranged in opposite directions; in this way, when locking, the two long lock assemblies 3 are locked along different locking directions, which improves the locking firmness, plays a reinforcing role in different directions, avoids strong knocks in different directions, and improves the monitoring effect of the magnetic lock.

[0040] The lock plate 2 has four plate fixing parts 22, and the four plate fixing parts 22 are arranged in pairs. The middle plate groove is arranged between the two plate fixing parts 22, and the long lock shaft 31 synchronously passes through the two plate fixing parts 22 on one side of the lock plate 2. Under the action of the two plate fixing parts 22, the assembly stability of the long lock shaft 31 is enhanced, and a limiting effect is exerted on the long lock shaft 31 to avoid non-axial displacement of the long lock shaft 31, so that the long lock shaft 31 can reciprocate along the axial direction, which is convenient for switching between the locked state and the unlocked state.

[0041] The short lock assembly 4 includes a short lock shaft 41, a short lock spring 42 and a short lock head 43. One end of the short lock spring 42 is docked with the lock housing 1, the other end of the short lock spring 42 is docked with the inner end of the short lock head 43, the outer end of the short lock head 43 is docked with the short lock shaft 41, and the short lock shaft 41 and the short lock groove 21 are locked or unlocked; the short lock spring 42 is used to apply elastic force to cause the short lock shaft 41 to be embedded in the short lock groove 21 in a locked state, and the short lock head 43 is used to limit the non-axial movement direction of the short lock assembly and can be pulled by the magnetic force of the unlocking device to pull the short lock shaft 41 out of the short lock groove 21 to an unlocked state.

[0042] When unlocked, the short lock spring 42 is blocked by the lock shell 1 and is in a compressed state. When locked, the lock plate 2 is moved by the pressing force and moves synchronously relative to the short lock shaft 41, the short lock spring 42 and the short lock head 43 until the short lock shaft 41 moves to a corresponding arrangement with the short lock groove 21. Under the elastic force of the short lock spring 42, the short lock shaft 41 is embedded in the short lock groove 21 to achieve locking. When unlocking again, the unlocker is used to overcome the elastic force of the short lock spring 42 through magnetic force, and the short lock shaft 41 is pulled out of the long lock groove 11 to achieve unlocking.

[0043] The short lock head 43 has a short lock cavity 44 which is recessed in a direction away from the short lock spring 42 . The short lock cavity 44 has a bottom cavity wall. The short lock spring 42 is embedded in the short lock cavity 44 and the short lock spring 42 is butt-jointed with the bottom cavity wall.

[0044] In this way, under the action of the short lock cavity 44, the short lock spring 42 has a larger setting space, ensuring that the short lock spring 42 has sufficient elastic force to prompt the short lock shaft 41 to be embedded in the short lock groove 21. At the same time, the short lock cavity 44 plays a limiting role on the short lock spring 42, ensuring that the short lock spring 42 is axially extended or contracted, thereby ensuring the driving of the short lock shaft 41. In addition, such a setting makes the overall space occupied by the short lock assembly 4 smaller, which is convenient for the assembly of the short lock assembly 4.

[0045] When in the unlocked state, the short lock spring 42 is in a compressed state in the short lock cavity 44, so that the shaking of the short lock shaft 41 and the short lock head 43 is reduced, which makes it easier for the short lock shaft 41 to be embedded in the short lock groove 21 when the lock plate 2 moves and the short lock groove 21 corresponds to the short lock shaft 41.

[0046] The outer end shaft head of the short lock shaft 41 is arranged in an arched arc shape in the direction away from the short lock head 43; the short lock groove 21 has a short groove wall, and the short groove wall is arranged in an arc shape; when in the locked state, the shaft head and the short groove wall are arranged in a flat and abutting manner.

[0047] In this way, the shaft head can slide into the short locking groove 21 more easily when locked, and the shaft head is arranged in this way to have a better buffering effect, thereby increasing the service life of the shaft head.

[0048] Along the length direction of the lock plate 2, two short lock grooves 21 are arranged correspondingly at both ends, two short lock shafts 41 are arranged correspondingly at both ends, and the short lock spring 42 applies elastic force in the direction toward the lock plate 2 to cause the short lock shaft 41 to be embedded in the short lock groove 21; in this way, locking force is applied in relative directions to improve the locking firmness and avoid unlocking due to strong knocking in different directions.

[0049] Along the width direction of the lock plate 2, the short lock groove 21 is arranged between the two long lock assemblies 3; in this way, the cooperation between the long lock assembly 3 and the short lock assembly 4 is enhanced, the locking firmness is improved, and the monitoring effect of the magnetic lock is guaranteed.

[0050] When knocking in any locking axial direction, there will always be two of the four long and short locks that are locked toward each other, so the magnetic lock cannot be unlocked by knocking in any direction.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Four-core magnetic lock structure, characterized by: It includes a lock shell, a lock plate, two long lock assemblies and two short lock assemblies, the lock plate, the two long lock assemblies and the two short lock assemblies are respectively assembled in the lock shell, the two long lock assemblies are respectively assembled with the lock plate, the two short lock assemblies are respectively arranged corresponding to the lock plate, the lock plate has two short lock grooves, the lock shell has two long lock grooves, the lock plate is pressed to be moved, the lock plate is used to drive the long lock assembly to be moved, the short lock assembly is locked or unlocked with the short lock groove, and the long lock assembly is locked or unlocked with the long lock groove.

2. The four-core magnetic lock structure according to claim 1, characterized in that: The long lock assembly includes a long lock shaft, a long lock spring and a long lock head. The long lock spring is sleeved on the long lock shaft. The long lock shaft is used to be embedded in the long lock slot to be locked or disengaged from the long lock slot to be unlocked. The long lock spring is used to apply elastic force to cause the long lock shaft to be embedded in the long lock slot to be in a locked state; the long lock shaft and the long lock head are assembled and arranged, and the long lock head is used to be pulled by the magnetic force of the unlocking device to disengage the long lock shaft from the long lock slot to be in an unlocked state.

3. The four-core magnetic lock structure according to claim 2, characterized in that: The lock plate has a middle plate groove, the long lock shaft has a shaft ring, the shaft ring is convexly arranged, one end of the long lock spring is docked with the shaft ring, the long lock spring and the shaft ring are respectively in the middle plate groove, and the other end of the long lock spring is docked with the lock plate; when unlocked, the long lock spring is in a compressed state.

4. The four-core magnetic lock structure according to claim 2, characterized in that: The long lock shaft has a shaft connection section, and the shaft connection section is arranged in threaded connection with the long lock head.

5. The four-core magnetic lock structure according to claim 4, characterized in that: The long lock head includes four locking cut surfaces, which are arranged correspondingly at four corners, and the locking cut surfaces are arranged to extend horizontally along the axial direction of the long lock shaft. The four locking cut surfaces are synchronously arranged to be flat and in contact with the lock shell.

6. The four-core magnetic lock structure according to any one of claims 1 to 5, characterized in that: The locking direction and unlocking direction of the two long lock assemblies are arranged in opposite directions.

7. The four-core magnetic lock structure according to any one of claims 1 to 5, characterized in that: The short lock assembly includes a short lock shaft, a short lock spring and a short lock head. One end of the short lock spring is docked with the lock housing, the other end of the short lock spring is docked with the inner end of the short lock head, the outer end of the short lock head is docked with the short lock shaft, and the short lock shaft and the short lock slot are locked or unlocked. The short lock spring is used to apply elastic force to cause the short lock shaft to be embedded in the short lock slot in a locked state, and the short lock head is used to be pulled by the magnetic force of the unlocking device to disengage the short lock shaft from the short lock slot to an unlocked state.

8. The four-core magnetic lock structure according to claim 7, characterized in that: The short lock head has a short lock cavity, the short lock cavity is recessed in a direction away from the short lock spring, the short lock cavity has a bottom cavity wall, the short lock spring is embedded in the short lock cavity, and the short lock spring and the bottom cavity wall are butt-jointed.

9. The four-core magnetic lock structure according to claim 7, characterized in that: The outer end shaft head of the short lock shaft is arranged in an arched arc shape along the direction away from the short lock head; the short lock groove has a short groove wall, and the short groove wall is arranged in an arc shape; when in the locked state, the shaft head and the short groove wall are arranged in a flat and abutting manner.

10. The four-core magnetic lock structure according to claim 7, characterized in that: Along the length direction of the lock plate, the two short lock grooves are arranged correspondingly at both ends, the two short lock shafts are arranged correspondingly at both ends, and the short lock spring applies elastic force in the direction toward the lock plate to cause the short lock shaft to be embedded in the short lock groove; along the width direction of the lock plate, the short lock groove is arranged between the two long lock assemblies.

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