A magnetic door lock

Abstract

The present invention belongs to the technical field of door locks, and particularly refers to a magnetic door lock, which includes a lock case. Inside the lock case, there is a lock tongue that can extend outward and insert into the lock groove on the door frame. A linkage part located inside the lock case is formed on the lock tongue. A lock tongue driving part is provided inside the lock case. A linkage groove is formed on the linkage part, and a linkage cylinder that moves along the linkage groove is formed on the lock tongue driving part. When the lock tongue driving part rotates, the linkage cylinder makes the lock tongue translate towards the lock case by pushing the inner wall of the linkage groove. An operating handle driving part and a lock hole for installing a lock core are respectively provided inside the lock case. A lock tongue dialing block is formed on the operating handle driving part. An operating handle dialing block pushed by the lock tongue dialing block and a lock core dialing block pushed by the lock core are formed on the circumferential direction of the lock tongue driving part. This door lock can achieve various functions such as locking, anti-locking, and unlocking only through the simple cooperation between the lock tongue driving part and the operating handle driving part, effectively simplifying the structure and reducing the cost and difficulty of production and manufacturing.

Description

Technical Field

[0001] The present invention belongs to the technical field of door locks and relates to a magnetic door lock. Background Art

[0002] A magnetic door lock is a door lock that forms a door closing effect by attracting a lock tongue in a lock case into a buckle box on a door frame through magnetic force. In addition to being able to lock a door panel through the lock tongue, the existing magnetic door locks also have an anti-lock function. After the door lock is anti-locked, it cannot be opened by turning the door handle.

[0003] For example, CN201921474581.7 discloses an optimized structure of a magnet lock body. By rotating the key inserted into the lock core counterclockwise, the lock core drives the lock tongue dial to rotate clockwise through the lock core dialing part. The anti-lock block on the lock tongue dial presses against the limit step on one side of the lock tongue trigger part through the inner insertion contact piece thereon. At the same time, in order not to let the door handle affect the lock tongue dial, the second lock tongue block of the door handle knob is staggered from the door handle contact piece of the lock tongue dial in the vertical direction. Although the above lock body structure simplifies the number of parts used, when implementing the anti-lock function, the cooperation requirements between the lock tongue dial, the anti-lock block, and the door handle knob are relatively high. Therefore, more complex shapes are also required for cooperation, which will increase the manufacturing difficulty and production cost of the lock body.

[0004] In view of the above problems, a magnetic door lock with a simplified structure and capable of realizing the anti-lock function through simple part cooperation can be designed. Summary of the Invention

[0005] According to the above problems, the present invention provides a magnetic door lock, which optimizes the internal structure, is easier to realize functions such as anti-locking, free rotation of the door handle, and normal unlocking, and reduces the production difficulty.

[0006] The object of the present invention is achieved as follows:

[0007] A magnetic door lock comprises a lock shell, a lock tongue which can extend outward and be inserted into a lock groove on a door frame, a linkage part located in the lock shell is formed on the lock tongue, a lock tongue driving member which drives the lock tongue to translate by rotation is provided in the lock shell, a linkage groove is formed on the linkage part, a linkage column which moves along the linkage groove is formed on the lock tongue driving member, and the linkage column pushes the inner wall of the linkage groove when the lock tongue driving member rotates to make the lock tongue translate into the lock shell, and a handle driving member which can drive the lock tongue driving member to rotate and a lock hole for installing a lock core are also respectively provided in the lock shell, a lock tongue shifting block is formed on the handle driving member, a handle shifting block driven by the lock tongue shifting block and a lock core shifting block driven by the lock core are formed on the lock tongue driving member in the circumferential direction, When the lock tongue block moves in a direction close to the handle block, it pushes the handle block, and when the handle block moves in a direction close to the lock tongue block, it is staggered with the lock tongue block; when the lock tongue block on the handle driving member pushes the handle block on the lock tongue driving member, the lock tongue retreats into the lock housing; when the lock core pushes the lock core block on the lock tongue driving member and allows the lock tongue driving member to rotate in a direction that makes the handle block move away from the lock tongue block, the lock tongue retreats into the lock housing; when the lock core pushes the lock core block on the lock tongue driving member and allows the lock tongue driving member to rotate in a direction that makes the handle block close to the lock tongue block, the handle block rotates to be staggered with the lock tongue block, the handle driving member is in an idling state, and the door lock is reversed.

[0008] Furthermore, a reset block is formed on the circumference of the lock tongue driving member, and a reset spring capable of resisting the reset block is arranged in the lock housing, so that the reset spring enables the lock tongue driving member to have a tendency to push the handle driving member to reset.

[0009] Furthermore, a relatively aligned sleeve rod and a spring positioning block are formed in the lock housing, a curved portion fixed to the inner wall of the lock housing is formed on the sleeve rod, and the reset spring is sleeved on the sleeve rod and abuts between the curved portion and the spring positioning block.

[0010] Furthermore, at least two positioning grooves are formed on the circumference of the lock tongue driving member, a lock tongue positioning column is formed in the lock housing, a positioning torsion spring is sleeved on the lock tongue positioning column, and a positioning portion extending into the positioning groove is formed on the positioning torsion spring.

[0011] Furthermore, a torsion spring positioning block is formed in the lock housing, and a limiting arm that can resist the torsion spring positioning block is formed on the positioning torsion spring, one end of the limiting arm is formed with a ring that is sleeved on the lock tongue positioning column, the other end of the limiting arm is bent and extended, and a swingable reset arm is formed, and the positioning portion is formed on the reset arm.

[0012] Furthermore, a reset groove is formed on the linkage portion of the lock tongue, and a reset torsion spring extending to the reset groove is sleeved on the lock tongue positioning column.

[0013] Furthermore, a handle torsion spring is coaxially connected to the handle driving member, and the handle torsion spring makes the lock tongue block tend to move away from the handle block. A handle positioning column is formed in the lock housing, and a handle positioning block is formed on the handle driving member. Support arms are formed on the handle torsion spring, which are against the two ends of the handle positioning column and the handle positioning block that are close to each other, and the handle positioning block can push the support arms to approach each other.

[0014] Furthermore, a limiting groove is formed on the handle driving member, the handle positioning column is located in the limiting groove, and the handle torsion spring causes the inner wall of the limiting groove to press against an end of the handle positioning column away from the support arm.

[0015] Furthermore, a travel groove is formed on the linkage part of the lock tongue, and a guide column is formed in the lock shell and passes through the lock tongue driving member and the travel groove in sequence. The lock tongue driving member rotates around the guide column, and the travel groove can translate relative to the guide column.

[0016] Furthermore, the guide column is covered with a protective sleeve which abuts against the travel groove.

[0017] Compared with the prior art, the present invention has the following outstanding and beneficial technical effects:

[0018] 1. The door lock only needs to rotate the handle block on the lock tongue driving member until it is offset from the lock tongue block on the handle driving member, so that the handle installed on the door lock and the handle driving member connected to the handle can be idle, so that the lock tongue is not affected by the rotation of the handle, thereby forming an anti-lock, further simplifying the matching structure required to realize the anti-lock function, and reducing the difficulty and cost of production.

[0019] 2. The lock tongue can be controlled to move correspondingly by rotating the lock tongue driving member inside the door lock, which further simplifies the matching structure required to realize the unlocking function, so that the normal function of the door lock is optimized. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 The structure diagram of the door lock in the locked stateFigure 1 .

[0022] Figure 2 Schematic structure of the door lock in the locked state Figure 2 .

[0023] Figure 3 Schematic structure of the door lock in the deadlocked state Figure 1 .

[0024] Figure 4 Schematic structure of the door lock in the deadlocked state Figure 2 .

[0025] Figure 5 Schematic structure of the door lock in the open state Figure 1 .

[0026] Figure 6 Schematic structure of the door lock in the open state Figure 2 .

[0027] 1 - Lock housing, 11 - Sleeve rod, 111 - Bending part, 12 - Spring positioning block, 13 - Lock tongue positioning column, 14 - Torsion spring positioning block, 15 - Handle positioning column, 16 - Guide column, 161 - Protective sleeve, 2 - Lock tongue, 21 - Linkage part, 211 - Linkage groove, 212 - Reset groove, 213 - Stroke groove, 3 - Lock tongue driving part, 31 - Linkage cylinder, 32 - Handle dial block, 33 - Lock core dial block, 34 - Reset dial block, 35 - Positioning groove, 4 - Handle driving part, 41 - Lock tongue dial block, 42 - Handle positioning block, 43 - Limit groove, 5 - Lock hole, 6 - Reset spring, 7 - Positioning torsion spring, 71 - Positioning part, 72 - Limit arm, 73 - Sleeve ring, 74 - Reset arm, 8 - Reset torsion spring, 9 - Handle torsion spring, 91 - Support arm. Detailed implementation manners

[0028] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other implementation manners obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present invention.

[0029] The present invention will be further described below with specific embodiments in conjunction with the accompanying drawings,

[0030] Such as Figures 1-6As shown, a magnetic door lock comprises a lock shell 1, a lock tongue 2 which can extend outward and be inserted into a lock groove on a door frame is arranged in the lock shell 1, a linkage portion 21 located in the lock shell 1 is formed on the lock tongue 2, a lock tongue driving member 3 which drives the lock tongue 2 to translate by rotation is arranged in the lock shell 1, a linkage groove 211 is formed on the linkage portion 21, a linkage column 31 which moves along the linkage groove 211 is formed on the lock tongue driving member 3, and the linkage column 31 pushes the inner wall of the linkage groove 211 when the lock tongue driving member 3 rotates to make the lock tongue 2 move into the lock shell 1 Translationally, the lock housing 2 is also provided with a handle driving member 4 that can drive the lock tongue driving member 3 to rotate, and a lock hole 5 for installing the lock core, a lock tongue block 41 is formed on the handle driving member 4, and the lock tongue driving member 3 is circumferentially formed with a handle block 32 pushed by the lock tongue block 41, and a lock core block 33 pushed by the lock core, the lock tongue block 41 pushes the handle block 32 when moving in a direction close to the handle block 32, and the handle block 32 is staggered with the lock tongue block 41 when moving in a direction close to the lock tongue block 41.

[0031] When the door lock is locked normally, the lock tongue 2 extends out of the lock housing 1 and extends into the lock groove with magnetic force on the door frame, and the lock groove attracts the lock tongue 2 through magnetic force. In this door lock, the handle is inserted into the lock housing 1 and is coaxially connected with the handle driver 4. When the door lock is not reversed, the handle is pressed down, and the handle driver 4 rotates in the direction of pushing the lock tongue driver 3 to rotate, so that the lock tongue 2 retreats into the lock housing 1, thereby forming an unlocking state. The key is inserted into the lock core, and the lock core pushes the lock tongue driver 3 by turning the key, which can also achieve unlocking. Reversing the key can also make the lock core push the lock tongue driver 3 to form a reverse lock. Specifically, the structural coordination form of the door lock is that when the lock tongue block 41 on the handle driving member 4 pushes the handle block 32 on the lock tongue driving member 3, the lock tongue driving member 3 rotates, so that the linkage column 31 on the lock tongue driving member 3 moves in the direction that can push the inner wall of the linkage groove 211 on the linkage part 21, and the linkage part 21 of the lock tongue 2 is pushed accordingly, and the lock tongue driving member 3 can push the lock tongue 2 back into the lock housing 1 through the linkage column 3; when the lock core pushes the lock core block 33 on the lock tongue driving member 3, and the lock tongue driving member 3 rotates in the direction that makes the handle block 32 move away from the lock tongue block 41, the linkage column 3 will also move in the direction that can push the inner wall of the linkage groove 211 on the linkage part 21, so The lock tongue 2 is pushed back into the lock housing 1 due to the linkage part 21 being pushed; when the lock core pushes the lock core block 33 on the lock tongue driving member 3 and allows the lock tongue driving member 3 to rotate in the direction that makes the handle block 32 close to the lock tongue block 41, the handle block 32 rotates to be staggered with the lock tongue block 41. At this time, the handle driving the handle driving member 41 to rotate will not affect the lock tongue driving member, that is, the lock tongue 2 will not be retreated into the lock housing 1 when the handle is rotated, and the handle driving member 4 is in an idling state, and the door lock is reversed. If the key is turned in the opposite direction again, the lock core can make the lock core driving member 3 rotate by pushing the lock core block 33. After the rotation, the lock core block 33 of the lock core driving member 3 can be pushed by the handle block 41 of the handle driving member 4 again, and the reverse locking of the door lock is released.

[0032] like Figure 2 , Figure 4 and Figure 6As shown, a reset dial 34 is formed on the circumferential direction of the bolt driving member 3. A reset spring 6 is provided in the lock housing 1 and can abut against the reset dial 34. The reset spring 6 makes the bolt driving member 3 tend to push the handle driving member 4 to reset. Specifically, when the bolt driving member 3 rotates in a direction such that the linkage cylinder 31 can push the bolt 2 back into the lock housing 1, the reset dial 34 pushes the reset spring 6 as the lock core driving member 3 rotates, causing the reset spring 6 to be compressed. When the handle or key is rotated to drive the lock core driving member 3 by the handle driving member 4 or the lock core and the bolt 2 retracts into the lock housing 1, and then the handle or key is released, the reset spring 6 starts to rebound and pushes the lock core driving member 3 to rotate back to its original position. After the bolt 2 aligns with the lock slot on the door frame, it is re-attracted by the magnetic force of the lock slot, thus completing the door locking again.

[0033] As an improved embodiment, a sleeve rod 11 and a spring positioning block 12 that are aligned with each other are formed in the lock housing 1. A bent portion 111 fixed to the inner wall of the lock housing 1 is formed on the sleeve rod 11. The reset spring 6 is sleeved on the sleeve rod 11 and abuts between the bent portion 111 and the spring positioning block 12. Specifically, the reset spring 6 expands and contracts between the bent portion 111 and the spring positioning block 12. When the reset spring 6 is compressed, the reset spring 6 abuts against the bent portion 111 of the sleeve rod 11. When the reset spring 6 rebounds, the spring positioning block 12 limits the rebounding distance of the reset spring 6, so that the reset spring 6 is positioned.

[0034] As an improved embodiment, at least two positioning grooves 35 are formed on the circumferential direction of the bolt driving member 3. A bolt positioning post 13 is formed in the lock housing 1. A positioning torsion spring 7 is sleeved on the bolt positioning post 13, and a positioning portion 71 extending into the positioning groove 35 is formed on the positioning torsion spring 7. Specifically, when the bolt driving member 3 rotates to a state where it can be normally engaged for door locking or anti-locking, the positioning torsion spring 7 positions the bolt driving member 3 by making the positioning portion 71 extend into the positioning groove 35, so that in the state of door locking or anti-locking of this door lock, the bolt driving member 3 stably maintains its corresponding position.

[0035] As an improved embodiment, a torsion spring positioning block 14 is formed inside the lock housing 1. A limiting arm 72 that can abut against the torsion spring positioning block 14 is formed on the positioning torsion spring 7. A collar 73 sleeved on the lock tongue positioning post 13 is formed at one end of the limiting arm 72. The other end of the limiting arm 72 bends and extends, and a swingable reset arm 74 is formed. The positioning portion 71 is formed on the reset arm 74. Specifically, when the lock tongue driving member 3 rotates such that the positioning groove 35 is no longer aligned with the positioning portion 71 of the positioning torsion spring 7, during the rotation process, the lock tongue driving member 3 will cause the reset arm 74 to swing by pushing the positioning portion 71, thereby deforming the positioning torsion spring 7. At the same time, the torsion spring positioning block 14 abuts against the limiting arm 72 of the positioning torsion spring 7, and cooperates with the collar 73 sleeved on the lock tongue positioning post 13 to prevent the limiting arm 72 from displacing, so that the positioning torsion spring 7 only deforms without displacing. When the lock tongue driving member 3 rotates again to the direction where the positioning groove 35 is aligned with the positioning torsion spring 7, the positioning torsion spring 7 drives the reset arm 74 to reset by its own elasticity and drives the positioning portion 71 to extend into the positioning groove 35 of the lock tongue driving member 3 again.

[0036] As Figure 1 , Figure 3 and Figure 5 shown, a reset groove 212 is formed on the linkage portion 21 of the lock tongue 2. A reset torsion spring 8 extending into the reset groove 212 is sleeved on the lock tongue positioning post 13. Specifically, when the handle or the key inserted into the lock core rotates to open the door lock, during the process of the lock tongue 2 retracting into the lock housing 1, the reset torsion spring 8 is driven to swing and deform through the reset groove 212 of the linkage portion 21. When the door lock is locked again, the reset torsion spring 8 can help the lock tongue 2 to extend out of the lock housing 1 again by pushing the inner wall of the reset groove 212 through its own elasticity.

[0037] As Figure 2 and Figure 6As shown, a handle torsion spring 9 is coaxially connected to the handle driving member 4. The handle torsion spring 9 causes the lock tongue dial block 41 to have a tendency to move away from the handle dial block 32. A handle positioning post 15 is formed inside the lock housing 1. A handle positioning stop block 42 is formed on the handle driving member 4. A support arm 91 is formed on the handle torsion spring 9 and abuts against the two ends of the handle positioning post 15 and the handle positioning stop block 42 that are close to each other. The handle positioning stop block 15 can push the support arms 91 closer to each other. Specifically, since the handle installed on this door lock can drive the handle driving member 4 to rotate synchronously, when opening the door and pressing down and rotating the handle, during the rotation of the handle driving member 4, the handle positioning stop block 42 thereon pushes the support arm 91 in contact with it towards the support arm 91 abutting against the handle positioning post 15. The handle torsion spring 9 deforms due to the approaching of the support arms 91. When the handle is released, the handle torsion spring 9 rebounds due to its own elasticity. The support arm 91 will drive the handle driving member 4 to rotate by pushing the handle positioning stop block 42. The handle driving member 4 will drive the handle to reset accordingly. That is, after the handle installed on this door lock rotates and the handle is released, the handle can be reset again.

[0038] As an improved embodiment, a limiting groove 43 is formed on the handle driving member 4. The handle positioning post 15 is located inside the limiting groove 43. The handle torsion spring 9 causes the inner wall of the limiting groove 43 to abut against one end of the handle positioning post 15 that is far from the support arm 91. Specifically, the limiting groove 43 defines the range of rotation of the handle driving the handle driving member 4. When the inner wall of the limiting groove 43 abuts against one end of the handle positioning post 15 that is close to the support arm 91, the handle on this door lock can no longer be pressed down and rotated. Similarly, when the handle is reset, after the limiting groove 43 abuts against one end of the handle positioning post 15 that is far from the support arm 91, the handle and the handle driving member 4 can no longer rotate further.

[0039] As Figure 1 、 Figure 3 and Figure 5 As shown, a travel groove 213 is formed on the linkage part 21 of the lock tongue 2. A guide post 16 that sequentially passes through the lock tongue driving member 3 and the travel groove 213 is formed inside the lock housing 1. The lock tongue driving member 3 rotates around the guide post 16. The travel groove 213 can translate relative to the guide post 16. Specifically, the cooperation between the guide post 16 and the travel groove 213 guides the lock tongue 2 when it extends out of or retracts into the lock housing 1, enabling the linkage part 21 to stably drive the lock tongue 2 to translate, and also enabling the lock tongue driving member 3 to rotate stably.

[0040] As an improved embodiment, a protective sleeve 161 is sleeved on the guide post 16 and abuts against the travel groove 213. Specifically, when the travel groove 213 moves translationally relative to the guide post 16 along with the linkage portion 21 of the lock tongue 2, the protective sleeve 161 can prevent abrasion between the inner wall of the travel groove 213 and the guide post 16.

[0041] The above embodiments are only preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A magnetic door lock, comprising a lock housing, a lock tongue inside the lock housing that can extend outward and be inserted into a lock groove on a door frame, It is characterized in that The lock tongue is formed with a linkage part located in the lock shell, and the lock shell is provided with a lock tongue driving member that drives the lock tongue to translate by rotation, and a linkage groove is formed on the linkage part, and a linkage column is formed on the lock tongue driving member that moves along the linkage groove, and when the lock tongue driving member rotates, the linkage column pushes the inner wall of the linkage groove to make the lock tongue translate into the lock shell, and the lock shell is also respectively provided with a handle driving member that can drive the lock tongue driving member to rotate, and a lock hole for installing the lock core, a lock tongue block is formed on the handle driving member, and a hand block pushed by the lock tongue block and a lock core block pushed by the lock core are formed on the lock tongue driving member in the circumferential direction, and when the lock tongue block moves in a direction close to the hand block, it pushes the hand block, and when the hand block moves in a direction close to the lock tongue block, it is staggered with the lock tongue block; When the lock tongue pusher block on the handle driving member pushes the handle pusher block on the lock tongue driving member, the lock tongue retreats into the lock housing; When the lock core pushes the lock core block on the lock tongue driving member and the lock tongue driving member rotates in a direction that makes the handle block move away from the lock tongue block, the lock tongue retreats into the lock housing; When the lock core pushes the lock core block on the lock tongue driving member and the lock tongue driving member rotates in a direction that makes the handle block approach the lock tongue block, the handle block rotates to be offset from the lock tongue block, the handle driving member is in an idling state, and the door lock is reversely locked; The bolt driving member is formed with at least two positioning grooves in the circumferential direction, a bolt positioning column is formed in the lock housing, a positioning torsion spring is sleeved on the bolt positioning column, and a positioning portion extending into the positioning groove is formed on the positioning torsion spring; A travel groove is formed on the linkage part of the lock tongue, and a guide column is formed in the lock shell and passes through the lock tongue driving member and the travel groove in sequence. The lock tongue driving member rotates around the guide column, and the travel groove can translate relative to the guide column.

2. The magnetic door lock according to claim 1, It is characterized in that A reset block is formed on the circumference of the bolt driving member, and a reset spring capable of resisting the reset block is arranged in the lock housing. The reset spring enables the bolt driving member to have a tendency to push the handle driving member to reset.

3. The magnetic door lock according to claim 2, It is characterized in that A sleeve rod and a spring positioning block which are aligned with each other are formed in the lock housing. A curved portion which is fixed to the inner wall of the lock housing is formed on the sleeve rod. The reset spring is sleeved on the sleeve rod and abuts between the curved portion and the spring positioning block.

4. The magnetic door lock according to claim 1, It is characterized in that A torsion spring positioning stop is formed inside the lock housing. A limiting arm that can abut against the torsion spring positioning stop is formed on the positioning torsion spring. A collar sleeving on the lock tongue positioning post is formed at one end of the limiting arm. The other end of the limiting arm bends and extends, and a swingable reset arm is formed. The positioning portion is formed on the reset arm.

5. The magnetic lock according to claim 1, characterized in that a reset groove is formed on the linkage portion of the lock tongue, and a reset torsion spring extending into the reset groove is sleeved on the lock tongue positioning post.

6. The magnetic lock according to claim 1, characterized in that a handle torsion spring is coaxially connected to the handle driving member. The handle torsion spring causes the lock tongue dial block to have a tendency to move away from the handle dial block. A handle positioning post is formed inside the lock housing. A handle positioning stop is formed on the handle driving member. A support arm abutting against the two ends of the handle positioning post and the handle positioning stop that are close to each other is formed on the handle torsion spring. The handle positioning stop can push the support arms closer to each other.

7. The magnetic lock according to claim 6, characterized in that a limiting groove is formed on the handle driving member. The handle positioning post is located inside the limiting groove. The handle torsion spring causes the inner wall of the limiting groove to abut against the end of the handle positioning post away from the support arm.

8. The magnetic lock according to claim 1, characterized in that a protective sleeve abutting against the travel groove is sleeved on the guide post.

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