Mute magnetic lock capable of being locked back

Abstract

The mute magnetic lock comprises a lock shell, a magnetic tongue assembly, a locking piece, a movable plate and a handle shifting assembly are sequentially arranged in the lock shell from left to right, the handle shifting assembly is rotationally connected into the lock shell, and the upper end of the handle shifting assembly is connected with the magnetic tongue assembly to drive the magnetic tongue assembly to slide relative to the lock shell; the locking piece is rotationally connected to the lock shell through a limiting guide structure, the movable plate is slidably connected into the lock shell through a first reset mechanism, and when the locking piece is rotated, the left side of the locking piece abuts against the magnetic tongue assembly, the right side of the locking piece abuts against the movable plate, the movable plate is driven to move rightwards to abut against the handle shifting peach assembly, and rotation of the handle shifting peach assembly is limited at the moment; and when the locking piece is rotated to enable the two ends of the locking piece to relieve the abutting pressure on the magnetic tongue assembly and the movable plate, the movable plate relieves the rotation limitation on the lever handle shifting peach assembly through the automatic reset of the first reset mechanism at the moment. According to the scheme, the structure is simple, the number of parts is small, and the movable plate can be automatically reset after the locking piece relieves pressure on the movable plate.

Description

Technical Field

[0001] The utility model relates to the field of locks for door locks, and particularly relates to a silent magnetic lock that can be anti-locked. Background Art

[0002] At present, with the development of society and the improvement of people's living standards, the demand for family security and personal privacy protection is increasing day by day. As an important part of ensuring security, the importance of door locks is self-evident. Among various types of door locks, mortise locks occupy an important position in the market due to their simple installation and convenient operation. Especially single-tongue mortise locks are favored by the majority of consumers because of their simple structure and low cost.

[0003] Traditional single-tongue mortise locks mainly include a lock case, a lock tongue, a lock core assembly, a handle dial cam, and an anti-lock device. Indoors, users can lock the door lock by rotating the anti-lock device to prevent external opening. Outdoors, users can rotate the anti-lock device by using a key to lock the door lock. Although this design is simple and effective, it also exposes many problems in practical applications.

[0004] First of all, in the existing single-tongue mortise locks, the linkage structure design between the anti-lock device and the door lock handle is relatively complex. This complex design not only increases the manufacturing difficulty and cost, but also reduces the overall reliability and service life. During long-term use, the complex linkage structure is prone to wear or looseness, resulting in unstable door lock functions and even possible jamming.

[0005] Secondly, many existing single-tongue mortise locks lack an automatic reset function. This means that when the user unlocks the door with a key, if the linkage structure does not reset in time, then even if the anti-lock device has been rotated to unlock, the door lock may still remain locked due to the incomplete reset of the linkage structure, resulting in the user being unable to open the door normally. This situation not only brings great inconvenience to users, but also may pose a safety hazard in case of emergency.

[0006] In summary, although the existing single-tongue mortise locks have certain competitiveness in the market, there is still much room for improvement in terms of structural design, reliability, user experience, etc. Therefore, developing a new type of mortise lock with a simpler structure, more reliable performance, more convenient use, and an automatic reset function is an important research direction in the current industry. Content of the Utility Model

[0007] The utility model overcomes the above-mentioned deficiencies in technology and provides a silent magnetic lock that can be anti-locked.

[0008] To achieve the above object, the utility model adopts the following technical solutions:

[0009] A mute magnetic lock with anti-locking function, comprising a lock housing. Inside the lock housing, a magnetic tongue assembly, a locking member, a movable plate and a handle dial assembly are sequentially arranged from left to right. The handle dial assembly is rotatably connected inside the lock housing. The upper end of the handle dial assembly is connected to the magnetic tongue assembly to drive the magnetic tongue assembly to slide relative to the lock housing. The locking member is rotatably connected to the lock housing through a limit guiding structure. The movable plate is slidably connected inside the lock housing through a first reset mechanism. When the locking member is rotated so that its left side presses against the magnetic tongue assembly, its right side presses against the movable plate and drives the movable plate to move rightward to press against the handle dial assembly, at this time the handle dial assembly is restricted from rotating. When the locking member is rotated so that its two ends release the pressing against the magnetic tongue assembly and the movable plate, at this time the movable plate is automatically reset by the first reset mechanism to release the rotation restriction on the handle dial assembly.

[0010] Further, a first mute structure for buffering the magnetic tongue assembly when the magnetic tongue assembly slides relative to the lock housing to lock / unlock is fixedly arranged inside the lock housing.

[0011] Further, the magnetic tongue assembly includes a square tongue and a pull rod fixedly connected to one end of the square tongue extending into the lock housing. The pull rod is slidably connected to the lock housing. The other end of the pull rod extends horizontally into the lock housing above the locking member, the movable plate and the handle dial assembly. The other end of the pull rod is connected to the upper end of the handle dial assembly. Rotating the handle dial assembly can drive the pull rod to slide to drive the square tongue to slide synchronously.

[0012] Further, the first mute structure includes a limit block fixedly arranged on the lock housing and a first mute sleeve sleeved on the limit block. The pull rod includes a limit groove opened downward. The limit groove includes a first limit portion on the left side and a second limit portion on the right side. When the square tongue completely extends out relative to the lock housing and is in the locked state, the second limit portion abuts against the right side of the first mute sleeve. When the square tongue completely retracts into the lock housing and is in the unlocked state, the first limit portion abuts against the left side of the first mute sleeve.

[0013] Further, the first reset mechanism includes a fixed seat fixedly connected to the lock housing and a first spring with one end connected to the fixed seat. The movable plate is slidably connected to the fixed seat. A sliding hole is opened on the movable plate, and the fixed seat is arranged in the sliding hole. The left side of the movable plate is connected to the first spring.

[0014] Further, the limit guiding structure includes an arc-shaped guiding hole opened on the bottom wall of the lock housing and a sliding block arranged at the bottom of the locking member and capable of sliding in the guiding hole.

[0015] Further, a second reset mechanism is connected to the lower end of the handle dial assembly. After rotating the handle dial assembly to drive the magnetic tongue assembly to slide relative to the lock housing to unlock, the handle dial assembly is automatically reset through the second reset mechanism.

[0016] Further, the handle dialing component includes a handle mounting part, a first dial piece, a second dial piece and a connecting part which are integrally formed. The first dial piece is arranged upward and connected to the magnetic tongue component. The second dial piece is arranged on the right side of the first dial piece. The connecting part is arranged below the second dial piece and connected to the second reset mechanism.

[0017] Further, the second reset mechanism includes a first pin shaft fixedly arranged on the lock case, a connecting piece with one end sleeved on the first pin shaft, and a second spring sleeved on the connecting piece. The other end of the connecting piece is connected to the connecting part. The second spring is limited between the connecting piece and the connecting part. A second pin shaft is also arranged on the lock case on the right side of the first dial piece. A second silent sleeve is sleeved on the second pin shaft. When the square tongue completely extends out relative to the lock case and is in the locked state, the second dial piece abuts against the second silent sleeve.

[0018] Further, it further includes a buckle box. The buckle box includes a buckle box body and a fixing plate fixedly connected to the buckle box body. One end of the buckle box body facing the fixing plate is provided with a cavity for the magnetic tongue component to extend into, and a silent gasket is installed at the bottom of the cavity.

[0019] Compared with the prior art, the beneficial effects of the present utility model are:

[0020] A reversible silent magnetic lock provided in this case specifically includes a lock shell. Inside the lock shell, a magnetic tongue assembly, a locking member, a movable plate, and a handle dial component are sequentially arranged from left to right. The handle dial component is rotatably connected inside the lock shell. The upper end of the handle dial component is connected to the magnetic tongue assembly to drive the magnetic tongue assembly to slide relative to the lock shell. The locking member is rotatably connected to the lock shell through a limit guiding structure. The movable plate is slidably connected inside the lock shell through a first reset mechanism. When the locking member is rotated so that its left side presses against the magnetic tongue assembly, its right side presses against the movable plate, and the movable plate is driven to move rightward to press against the handle dial component, at this time, the handle dial component is restricted from rotating. When the locking member is rotated so that its two ends release the pressure on the magnetic tongue assembly and the movable plate, at this time, the movable plate is automatically reset through the first reset mechanism to release the rotation restriction on the handle dial component. As described above, for the reversible silent magnetic lock with this structure in this case, compared with the prior art, its structure is simple, the number of components is small, making the installation relatively convenient, and the production cost is low. The anti-lock function of the door lock can be realized through the rotation action of the locking member, simplifying the operation process and enhancing the convenience of use. In addition, by setting the first reset mechanism in this case, the linkage between the locking member and the movable plate is well realized. The movable plate is connected to the first reset mechanism and can automatically reset after the locking member releases the pressure on the movable plate. The automatic reset function provided by the first reset mechanism ensures that the door lock can quickly return to the normal state after unlocking, avoiding the trouble of manual reset and improving the user experience. At the same time, the simplification of the structure and the setting of the first reset mechanism effectively enhance the overall stability and reliability of the reversible silent magnetic lock in this case. Among them, the simplification of the structure makes it not easy to have situations such as the overall failure, instability, and jamming of the lock due to the wear and looseness of internal parts, effectively improving the overall service life of the lock. The setting of the first reset mechanism can effectively make the movable plate automatically reset after the locking member rotates to unlock, effectively improving the stability of the door lock and preventing the situation of being unable to open the door after unlocking. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of the separated state of the lock shell and the buckle box in this case.

[0022] Figure 2 It is a schematic structural diagram of the locked state when the lock shell and the buckle box are assembled in this case.

[0023] Figure 3 It is a schematic structural diagram of the unlocked state when the lock shell and the buckle box are assembled in this case.

[0024] Figure 4 It is a schematic diagram of the limit guiding structure in this case.

[0025] Figure 5 It is an exploded view of the parts of the buckle box in this case. DETAILED DESCRIPTION OF THE INVENTION

[0026] The features of the present utility model and other related features are further described in detail through the following embodiments for the understanding of those skilled in the same industry:

[0027] Regarding the descriptions of the positional relationships of components such as front, rear, top, bottom, left, right, outside, and inside in this case, please refer to Figure 2 the orientation shown in

[0028] As Figures 1 to 5As shown in the figure, this case provides a soundproof magnetic lock with anti-locking function, aiming to solve the problems existing in the existing single-tongue mortise lock, such as complex linkage structure, poor stability, and lack of automatic reset function. The soundproof magnetic lock with anti-locking function in this case includes a lock shell 100, and a magnetic tongue assembly 1, a locking member 2, a movable plate 3, and a handle pick assembly 4 are sequentially arranged in the lock shell 100 from left to right. By setting the magnetic tongue assembly 1, the locking of the door is realized by using the magnetic adsorption principle, reducing the wear and noise caused by traditional mechanical contact. The handle pick assembly 4 is rotatably connected in the lock shell 100, and the upper end of the handle pick assembly 4 is connected to the magnetic tongue assembly 1 to drive the magnetic tongue assembly 1 to slide relative to the lock shell 100. The locking member 2 is rotatably connected to the lock shell 100 through a limit guiding structure. The setting of the limit guiding structure is beneficial to the stable rotation of the locking member 2 within a preset range, enhancing the stability of the rotation of the locking member 2, thereby improving the stability of the entire lock when locking and unlocking. Specifically, during implementation, the locking member 2 is used to connect an external knob or key to realize the locking and unlocking of the handle. The locking member 2 is preferably made of a plastic material with good soundproof effect to avoid generating excessive noise when it rotates to lock or unlock, hitting the magnetic tongue assembly 1 on the left and the movable plate 3 on the right, further improving the overall soundproof effect. The movable plate 3 is slidably connected to the lock shell 100 through a first reset mechanism 5, ensuring that after the locking member releases the pressure on the movable plate 3, the first reset mechanism can automatically return the movable plate 3 to its initial position, ensuring that the movable plate 3 can quickly reset each time it is unlocked, thereby releasing the locking of the handle pick assembly 4, improving the convenience and reliability of use. When in use, the user needs to rotate the knob or key to rotate the locking member 2. When the user rotates the locking member 2 so that its left side presses against the magnetic tongue assembly 1, its right side presses against the movable plate 3 and drives the movable plate 3 to move to the right to press against the handle pick assembly 4, at this time, the handle pick assembly 4 is restricted from rotating, thereby realizing the locking of the lock; when the user rotates the locking member 2 so that its two ends release the pressure on the magnetic tongue assembly 1 and the movable plate 3, at this time, the movable plate 3 releases the rotation restriction on the handle pick assembly 4 through the automatic reset of the first reset mechanism 5, thereby realizing the unlocking of the lock. Through the above design, this case effectively realizes the automatic reset function of the lock when locking / unlocking, simplifies the internal structure of the lock, and also provides a good soundproof effect for the whole lock. It greatly improves the user experience and the reliability of the product. Compared with the traditional single-tongue mortise lock, the solution provided in this case not only solves the problem of complex internal linkage structure, is more convenient to operate, has good stability, but also improves the service life and safety of the door lock.

[0029] As Figure 2 , Figure 3As shown, in order to further improve the overall sound insulation effect of the lock in this case, a first sound insulation structure is fixedly provided in the lock housing 100 to buffer the magnetic tongue assembly 1 when the magnetic tongue assembly 1 slides relative to the lock housing 100 for locking / unlocking. The first sound insulation structure reduces the direct collision between the magnetic tongue assembly 1 and other components through buffering, thereby reducing wear. By adding the first sound insulation structure to the sliding path of the magnetic tongue assembly 1, the noise generated during the movement of the magnetic tongue assembly 1 is further reduced.

[0030] As Figures 1 - 3 shown, specifically, the magnetic tongue assembly 1 of this case includes a square tongue 11 and a pull rod 12 fixedly connected to one end of the square tongue 11 extending into the lock housing 100. The pull rod 12 is slidably connected to the lock housing 100. The other end of the pull rod 12 extends horizontally into the lock housing 100 and is disposed above the locking member 2, the movable plate 3, and the handle pick assembly 4. The other end of the pull rod 12 is connected to the upper end of the handle pick assembly 4. Rotating the handle pick assembly 4 can drive the pull rod 12 to slide, thereby driving the magnetic tongue assembly 1 to slide synchronously. The other end of the pull rod 12 of this case extends horizontally above the locking member 2, the movable plate 3, and the handle pick assembly 4, ensuring that the magnetic tongue assembly 1 can be accurately driven to slide when the handle pick assembly 4 rotates. The design of the pull rod 12 structure in this case and the characteristics of its installation position simplify the connection between the magnetic tongue assembly 1 and the handle pick assembly 4, reduce the complexity of the internal linkage structure, are beneficial to manufacturing and maintenance, and also improve the overall stability and reliability of the lock. During specific implementation, to improve the overall sound insulation effect of the lock in this case, the pull rod 12 is preferably made of a plastic material with good sound insulation effect to reduce the noise generated when it slides relative to the lock housing 100. The outside of the square tongue 11 is also preferably made of plastic material to reduce the noise generated between the square tongue and the buckle box 200 when the square tongue automatically extends into the buckle box 200. During specific implementation, a magnet is provided inside the square tongue 11.

[0031] As Figure 2 、 Figure 3As shown in the figure, specifically, the first mute structure includes a limiting block 101 fixedly arranged on the lock housing 100 and a first mute sleeve 1011 sleeved on the limiting block 101. During implementation, the limiting block 101 can be in the shape of a sheet, column, etc. extending from the bottom to the top of the lock housing 100. In this case, it is preferably a sheet. The pull rod 12 is provided with a limiting groove 121 opened downward. The limiting groove 121 includes a first limiting portion 1211 on the left side and a second limiting portion 1212 on the right side. When the square tongue 11 completely extends out relative to the lock housing 100 and is in the locked state, the second limiting portion 1212 abuts against the right side of the first mute sleeve 1011; when the square tongue 11 completely retracts relative to the lock housing 100 and is in the unlocked state, the first limiting portion 1211 abuts against the left side of the first mute sleeve 1011. That is to say, when the user uses the handle turning and cam component 4 to drive the magnetic tongue component 1 to move, the handle turning and cam component 4 can drive the pull rod 12 to slide to drive the square tongue 11 to slide synchronously, thereby realizing the locking and unlocking of the lock in this case. During this movement process, the limiting block 101 is movable relative to the pull rod 12, and its movement stroke is limited in the limiting groove 121. By sleeving the first mute sleeve 1011 on the limiting block 101, the first limiting portion 1211 can be effectively buffered during locking to prevent the first limiting portion 1211 from directly hitting the limiting block, effectively protecting the first limiting portion 1211 and the limiting block 101, and at the same time can play a good mute effect, further improving the overall mute performance of the lock in this case. The principle and function of the first mute sleeve 1011 and the second limiting portion 1212 during unlocking are the same as those of the first limiting portion 1211. Refer to the above content and will not be elaborated here. During specific implementation, the first mute sleeve 1011 can preferably be made of materials with good mute effects such as sound-absorbing cotton, silicone, rubber, etc.

[0032] As Figures 1 - 3 shown in the figure, specifically, the first reset mechanism 5 includes a fixed seat 51 fixedly connected to the lock housing 100 and a first spring 52 with one end connected to the fixed seat 51. The fixed seat 51 is fixedly connected to the lock housing 100, used to fix one end of the first spring 52 and serve as a guide rail for the sliding of the movable plate 3. One end of the first spring 52 is connected to the fixed seat 51, and the other end is connected to the left side of the movable plate 3. The setting of the first spring 52 ensures that when the locking member 2 releases the pressure on the movable plate 3, sufficient reset force can be provided. The movable plate 3 is slidably connected to the fixed seat 51. The first spring 52 is used to provide the reset force for the movable plate 3 to ensure that it can automatically reset when not affected by external forces. A sliding hole 31 is opened on the movable plate 3, and the fixed seat 51 is arranged in the sliding hole 31 to ensure that the movable plate 3 will not deviate during sliding. The setting of the sliding hole 31 ensures the smooth sliding of the movable plate 3 and reduces the friction during the sliding process.

[0033] As Figure 4As shown in the figure, specifically, the limit guiding structure includes an arc-shaped guiding hole 102 formed on the bottom wall of the lock housing 100, and a slider 21 provided at the bottom of the locking member 2 and capable of sliding in the guiding hole 102. The guiding hole 102 is formed on the bottom wall of the lock housing 100 to define the sliding path of the locking member 2. The arc-shaped design of the guiding hole 102 ensures that the locking member 2 can slide along a predetermined trajectory when rotating. Through the cooperation of the slider 21 and the arc-shaped guiding hole 102, precise guiding of the locking member 2 is achieved. In specific implementation, the slider 21 should be designed in a shape matching the arc-shaped guiding hole 102 to ensure that it does not come out of the guiding hole during sliding. The limit guiding structure with this kind of structure in this case has good stability and high precision. In specific implementation, the user can add an additional auxiliary guiding hole on the basis of the original arc-shaped guiding hole 102 to further stabilize the position of the locking member 2. The auxiliary guiding hole can provide additional support to ensure that the locking member 2 slides more smoothly. The user can add balls between the slider 21 and the arc-shaped guiding hole 102 according to needs to reduce the friction during sliding, further improve the smoothness of sliding, and extend the service life. As a preferred implementation manner, in specific implementation, the user can design the arc-shaped guiding hole 102 as a multi-segment type, with each segment corresponding to a different locking state. This multi-segment type design can provide different guiding supports according to different locking states and improve the flexibility of operation.

[0034] Further, as Figures 1 - 3 shown, a second reset mechanism 6 is connected to the lower end of the handle turning piece assembly 4. After the handle turning piece assembly 4 is rotated to drive the magnetic tongue assembly 1 to slide relative to the lock housing 100 for unlocking, the handle turning piece assembly 4 is automatically reset through the second reset mechanism 6. The user rotates the handle turning piece assembly 4 to drive the magnetic tongue assembly 1 to slide to achieve locking or unlocking. After unlocking, the handle turning piece assembly 4 is automatically reset under the action of the second reset mechanism 6 for the next operation. The second reset mechanism 6 provides a reset force when the handle turning piece assembly 4 rotates, ensuring that it can be automatically reset after unlocking, reducing the steps of manual reset by the user, improving the convenience of use, reducing the possible incorrect operations during manual reset, and improving the overall stability of the lock.

[0035] Specifically, as Figures 1 - 3As shown in the figure, the handle turning piece assembly 4 of this case includes a handle mounting part 41, a first turning piece 42, a second turning piece 43, and a connecting part 44 which are integrally formed. That is to say, the handle turning piece assembly 4 is integrally formed by a mold during production and manufacturing. This method is convenient for production and saves costs. At the same time, the integrally formed design improves the overall strength and stability, and reduces the possibility of failures. The handle mounting part 41 is used to mount the handle, enabling the user to drive the movement of the entire handle turning piece assembly 4 by rotating the handle. The first turning piece 42 is upwardly connected to the magnetic tongue assembly 1, and drives the magnetic tongue assembly 1 to slide through its rotation, realizing locking or unlocking. Specifically, during implementation, the first turning piece 42 is connected to the position near the end of the pull rod 12 of the magnetic tongue assembly 1. The second turning piece 43 is arranged on the right side of the first turning piece 42 and is used to cooperate with the second pin shaft 103 on the lock housing 100 to limit the rotation angle for the automatic reset of the handle turning piece assembly 4, so as to facilitate the user to perform the door opening operation. The connecting part 44 is arranged below the second turning piece 43 and is connected to the second reset mechanism 6, so that the handle turning piece assembly 4 can be automatically reset after unlocking through the second reset mechanism 6.

[0036] As Figures 1 - 3As shown, specifically, the second reset mechanism 6 includes a first pin shaft 61 fixedly arranged on the lock housing 100, a connecting piece 62 with one end sleeved on the first pin shaft 61, and a second spring 63 sleeved on the connecting piece 62. The first pin shaft 61 is designed to fixedly connect the connecting piece 62 to ensure that the position of the connecting piece 62 is fixed and will not move with the rotation of the handle picking component 4. The other end of the connecting piece 62 is connected to the connecting portion 44, and the second spring 63 is limited between the connecting piece 62 and the connecting portion 44. The second spring 63 provides a reset force through its elasticity to ensure that the handle picking component 4 can automatically reset after unlocking. When the handle picking component 4 rotates to unlock, its connecting portion 44 slides on the connecting piece 62, thereby compressing the second spring 63. When the user releases the handle picking component 4, the second spring 63 elastically resets, thereby driving the connecting portion 44 to reverse to achieve the automatic reset of the handle picking component 4. A second pin shaft 103 is also arranged on the lock housing 100 on the right side of the first pick piece 42, and a second silent sleeve 1031 is sleeved on the second pin shaft 103. By arranging the second pin shaft 103, it is used to limit the excessive rotation of the handle picking component 4 in the case of elastic reset, which may cause the failure of the lock in this case. At the same time, by sleeving the second silent sleeve 1031 on the second pin shaft 103, after the user releases the handle picking component 4, the second spring 63 elastically resets, and the second silent sleeve 1031 can effectively buffer the handle picking component 4 to prevent the second pick piece 43 from directly hitting the second pin shaft 103, effectively protecting the second pick piece 43 and the second pin shaft 103, and at the same time can play a good silent effect, further improving the overall silent performance of the lock in this case. Specifically in implementation, the second silent sleeve 1031 can preferably be made of materials with good silent effects such as sound-absorbing cotton, silica gel, rubber, etc. When the square tongue 11 completely extends out relative to the lock housing 100 and is in the locked state, the second pick piece 43 abuts against the second silent sleeve 1031. That is to say, after the handle picking component 4 automatically resets, it finally limits the position through the second pin shaft 103 so that the second pick piece 43 abuts against the second silent sleeve 1031.

[0037] As Figures 1 - 3 , Figure 5As shown in the figure, a soundproof magnetic lock with anti-locking function provided in this case further includes a buckle box 200, which includes a buckle box body 201 and a fixing plate 202 fixedly connected to the buckle box body 201. The fixing plate 202 is provided to facilitate the installation and disassembly of the buckle box 200, which is convenient for later maintenance and replacement. A cavity 2011 for the magnetic tongue assembly 1 to extend into is provided at one end of the buckle box body 201 facing the fixing plate 202. In specific implementation, a magnet is also provided in the buckle box body 201, so that when the user closes the door, the magnetic tongue assembly 1 is automatically magnetically attracted and extends into the cavity 2011. A soundproof gasket 2012 is installed at the bottom of the cavity 2011. The soundproof gasket 2012 provides a buffering effect during the telescopic movement of the magnetic tongue assembly 1, reducing noise. In specific implementation, the soundproof gasket 2012 can preferably be made of materials with good soundproof effects such as sound-absorbing cotton, silica gel, rubber, etc.

[0038] As described above, the present case protects a soundproof magnetic lock with anti-locking function. All technical solutions identical or similar to those of the present case should be regarded as falling within the protection scope of the present case.

Claims

1. A soundproof magnetic lock that can be anti-locked, characterized in that: It includes a lock case (100). Inside the lock case (100), a magnetic tongue assembly (1), a locking member (2), a movable plate (3), and a handle cam assembly (4) are sequentially arranged from left to right. The handle cam assembly (4) is rotatably connected inside the lock case (100). The upper end of the handle cam assembly (4) is connected to the magnetic tongue assembly (1) to drive the magnetic tongue assembly (1) to slide relative to the lock case (100). The locking member (2) is rotatably connected to the lock case (100) through a limit guiding structure. The movable plate (3) is slidably connected inside the lock case (100) through a first reset mechanism (5). When the locking member (2) is rotated so that its left side presses against the magnetic tongue assembly (1), its right side presses against the movable plate (3), and the movable plate (3) is driven to move rightward to press against the handle cam assembly (4), at this time, the handle cam assembly (4) is restricted from rotating. When the locking member (2) is rotated so that its two ends release the pressing on the magnetic tongue assembly (1) and the movable plate (3), at this time, the movable plate (3) releases the rotation restriction on the handle cam assembly (4) through the automatic reset of the first reset mechanism (5).

2. The anti-lockable silent magnetic lock according to claim 1, characterized in that: Inside the lock case (100), a first silent structure for buffering the magnetic tongue assembly (1) when the magnetic tongue assembly (1) slides relative to the lock case (100) for locking / unlocking is also fixedly provided.

3. The anti-lockable silent magnetic lock according to claim 2, characterized in that: The magnetic tongue assembly (1) includes a square tongue (11) and a pull rod (12) fixedly connected to one end of the square tongue (11) extending into the lock case (100). The pull rod (12) is slidably connected to the lock case (100). The other end of the pull rod (12) extends horizontally into the lock case (100) above the locking member (2), the movable plate (3), and the handle cam assembly (4). The other end of the pull rod (12) is connected to the upper end of the handle cam assembly (4). Rotating the handle cam assembly (4) can drive the pull rod (12) to slide to drive the square tongue (11) to slide synchronously.

4. The anti-lockable silent magnetic lock according to claim 3, wherein: The first silent structure includes a limit block (101) fixedly arranged on the lock case (100) and a first silent sleeve (1011) sleeved on the limit block (101). The pull rod (12) includes a limit groove (121) opened downward. The limit groove (121) includes a first limit portion (1211) on the left side and a second limit portion (1212) on the right side. When the square tongue (11) completely extends out of the lock case (100) and is in the locked state, the second limit portion (1212) abuts against the right side of the first silent sleeve (1011). When the square tongue (11) completely retracts into the lock case (100) and is in the unlocked state, the first limit portion (1211) abuts against the left side of the first silent sleeve (1011).

5. The anti-lockable silent magnetic lock according to claim 1, characterized in that: The first reset mechanism (5) includes a fixed seat (51) fixedly connected to the lock case (100) and a first spring (52) with one end connected to the fixed seat (51). The movable plate (3) is slidably connected to the fixed seat (51). A sliding hole (31) is opened on the movable plate (3). The fixed seat (51) is arranged in the sliding hole (31). The left side of the movable plate (3) is connected to the first spring (52).

6. The mute magnetic lock with anti-locking function according to claim 1, characterized in that: The limit guiding structure includes an arc-shaped guiding hole (102) formed in the bottom wall of the lock housing (100), and a sliding block (21) provided at the bottom of the locking member (2) and slidable in the guiding hole (102).

7. A soundproof magnetic lock with anti-locking function according to any one of claims 1-6, characterized in that: The lower end of the handle and cam component (4) is connected with a second reset mechanism (6). After the handle and cam component (4) is rotated to drive the magnetic tongue component (1) to slide relative to the lock housing (100) for unlocking, the handle and cam component (4) is automatically reset through the second reset mechanism (6).

8. A soundproof magnetic lock with anti-locking function according to claim 7, characterized in that: The handle and cam component (4) includes a handle mounting portion (41), a first flap (42), a second flap (43) and a connecting portion (44) which are integrally formed. The first flap (42) is arranged upward and connected to the magnetic tongue component (1). The second flap (43) is arranged on the right side of the first flap (42). The connecting portion (44) is arranged below the second flap (43) and connected with the second reset mechanism (6).

9. A soundproof magnetic lock with anti-locking function according to claim 8, characterized in that: The second reset mechanism (6) includes a first pin shaft (61) fixedly arranged on the lock housing (100), a connecting piece (62) with one end sleeved on the first pin shaft (61), and a second spring (63) sleeved on the connecting piece (62). The other end of the connecting piece (62) is connected with the connecting portion (44). The second spring (63) is limited between the connecting piece (62) and the connecting portion (44). A second pin shaft (103) is further arranged on the lock housing (100) on the right side of the first flap (42). A second silent sleeve (1031) is sleeved on the second pin shaft (103). When the square tongue (11) completely extends out relative to the lock housing (100) and is in the locked state, the second flap (43) abuts against the second silent sleeve (1031).

10. A soundproof magnetic lock with anti-locking function according to claim 9, characterized in that: It further includes a buckle box (200). The buckle box (200) includes a buckle box body (201) and a fixing plate (202) fixedly connected with the buckle box body (201). One end of the buckle box body (201) facing the fixing plate (202) is provided with a cavity (2011) for the magnetic tongue component (1) to extend into. A silent gasket (2012) is installed at the bottom of the cavity (2011).

Images