Mechanical magnetic lock body with simple structure

Abstract

The utility model relates to a mechanical magnetic lock body with a simple structure, which comprises a lock shell, a rotatable magnetic tongue component, a lock tongue shifting piece, a handle shifting peach and a lock cylinder shifting peach are movably mounted in the lock shell, the handle shifting peach is arranged at the upper end of the lock tongue shifting piece, and the lock tongue shifting piece can be driven to rotate and is abutted against the magnetic tongue component by rotating the handle shifting peach. Therefore, the magnetic tongue assembly is driven to retract into the lock shell. The lock cylinder shifting peach is arranged at the lower end of the spring bolt shifting piece, the lock cylinder shifting peach is rotated clockwise, the spring bolt shifting piece can be driven to rotate and make the spring bolt shifting piece abut against the magnetic tongue assembly, and therefore the magnetic tongue assembly is driven to retract into the lock shell. When the lock cylinder shifting peach is rotated anticlockwise, the spring bolt shifting piece can be driven to rotate, and the spring bolt shifting piece and the magnetic bolt assembly are locked through the locking structure, so that the magnetic bolt assembly is locked in a state of extending out of the lock shell; an elastic reset device arranged on the right side of the spring bolt stirring piece is further installed in the lock shell and used for automatically resetting after the spring bolt stirring piece rotates and under the non-locking state.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of door lock, concretely relates to a simple structure's mechanical magnetic lock body. BACKGROUND

[0002] As an important safety protection device, door locks are widely used in various building entrances to prevent illegal intrusion. Traditional mechanical door locks are usually composed of a lock shell, a lock tongue assembly, and a control mechanism. The lock tongue assembly is restricted inside the lock shell and reciprocally slides in a specific direction, while the control mechanism is responsible for driving the lock tongue to lock out or lock in. With the development of technology, mechanical magnetic locks that work on the principle of permanent magnet attraction have appeared in the market. This type of lock achieves locking function through the natural attraction between magnets when the door is closed. When the user operates the handle, the magnetic force can be overcome to separate the lock body from the magnet in the lock box, thereby achieving unlocking and opening the door. This design based on permanent magnets provides a more convenient user experience, while avoiding the wear and tear problems that may exist in traditional mechanical lock cores, improving safety.

[0003] For example, the authorized announcement number is CN220621456U, and the patent name is an improved magnetic lock body. It discloses a lock body and a magnetic tongue assembly, a handle knob assembly, a driving piece, and a locking assembly arranged in the lock body. The driving piece is arranged between the handle knob assembly and the magnetic tongue assembly and can drive the magnetic tongue assembly to retract into the lock body through the sequential transmission of the three. The locking assembly is movably arranged and moves to the lower side of the magnetic tongue assembly to form a locking state. When the locking assembly moves away from the magnetic tongue assembly, it forms an unlocking state. When in the locking state, the locking assembly can lock the magnetic tongue assembly in the outwardly extended form, and the handle knob assembly and the driving piece are disconnected. When in the unlocking state, the handle knob assembly and the driving piece remain in transmission.

[0004] The above-mentioned patent is a prior application of the applicant. During the research and development process, it was found that although the locking assembly can achieve the locking and unlocking states, the overall structure is complex, the number of components is large, the assembly is inconvenient, and the production cost is high. Therefore, the applicability and practicality are limited. At the same time, due to the complex structure and numerous components, the overall reliability is poor during long-term use, and the lock body may be stuck or damaged after long-term use, causing inconvenience to users.

[0005] Therefore, how to overcome the above-mentioned defects has become an important topic for technicians in this field to solve. Utility model content

[0006] The utility model overcomes the shortcomings of the above-mentioned technology and provides a simple structure's mechanical magnetic lock body.

[0007] In order to achieve the above object, the utility model adopts the following technical scheme:

[0008] A simple structure's mechanical magnetic force lock body, including the lock shell, the rotatable magnetic tongue assembly, the bolt knob, the handle knob and the lock core knob are movably installed in the lock shell, the handle knob is arranged on the upper end of the bolt knob, the handle knob is rotated to drive the bolt knob to rotate and make it abut on the magnetic tongue assembly, thereby drive the magnetic tongue assembly to retract into the lock shell, the lock core knob is arranged on the lower end of the bolt knob, the clockwise rotation of the lock core knob can drive the bolt knob to rotate and make it abut on the magnetic tongue assembly, thereby drive the magnetic tongue assembly to retract into the lock shell, the counterclockwise rotation of the lock core knob can drive the bolt knob to rotate and make the bolt knob and the magnetic tongue assembly lock through the locking structure, thereby the magnetic tongue assembly is locked in the form of outwardly extending the lock shell, the elastic reset device for being arranged on the right side of the bolt knob is further installed in the lock shell, and the elastic reset device is used for automatic reset after the bolt knob rotates and belongs to the non-locking state.

[0009] Further, the first pin shaft is arranged on the lock shell, the elastic reset device includes the first torsional spring rotatably connected on the first pin shaft, the first torsional spring includes the first torsional arm and the second torsional arm, the first torsional arm always keeps abutting on the right side inner wall surface of the lock shell, and the second torsional arm always keeps abutting on the bolt knob.

[0010] Further, the support column for providing support for the second torsional arm is further installed on the lock shell, the support column is arranged on the left side of the first pin shaft, the bolt knob includes the first clamping groove formed on the right side wall of the bolt knob, the first slope located below the first clamping groove, the second clamping groove located below the first slope and the second slope located below the second clamping groove.

[0011] Further, the second pin shaft is arranged on the lock shell, the bolt knob is rotatably connected on the second pin shaft, the bolt knob includes the first knob, the second knob, the third knob and the limiting part, the first limiting block for blocking the limiting part to limit the rotation angle of the bolt knob is arranged on the lock shell, and the second limiting block for blocking the third knob to limit the rotation angle of the bolt knob is further arranged on the lock shell.

[0012] Further, the magnetic tongue assembly includes the rotatingly arranged bolt rod, the bolt head connected on the upper end of the bolt rod and the crank arm connected on the lower end of the bolt rod, the magnet is detachably arranged in the bolt head, the third pin shaft is installed on the lock shell, the bolt rod is rotatably arranged on the third pin shaft, and the crank arm is transmissionally connected with the second knob and the third knob respectively by rotating the bolt knob.

[0013] Further, the locking structure includes the third clamping groove arranged on the third knob and the convex strip arranged on the lower end of the crank arm.

[0014] Further, the third tab end is provided with a first protrusion and a fourth clamping groove connected to the left side of the first protrusion, the first protrusion is connected to the left side of the third clamping groove, and the protruding strip comprises a fifth clamping groove formed at the end thereof and a second protrusion symmetrically arranged on the left and right sides of the fifth clamping groove.

[0015] Further, the lock shell is further provided with a first limiting plate and a second limiting plate, the first limiting plate and the second limiting plate are arranged on the right side of the lock tongue head and abut against the first limiting plate and the second limiting plate when the lock tongue head is fully retracted into the lock shell.

[0016] Further, the first limiting plate and the second limiting plate are sleeved with rubber gaskets.

[0017] Further, the handle knob comprises a fourth tab, a fifth tab, a sixth tab and a handle mounting hole, a limiting column for limiting the rotation angle of the handle knob is arranged between the fourth tab and the fifth tab, the limiting column is fixedly connected to the lock shell, rotating the handle knob can make the sixth tab in transmission connection with the lock tongue driving piece, and a reset spring for automatically resetting the handle knob after rotation is sleeved on the handle knob.

[0018] Compared with the prior art, the beneficial effects of the mechanical magnetic lock body are as follows: through the organic combination of the above technical features, the present application proposes a mechanical magnetic lock body which is simple in structure and easy to produce and assemble. The required components only include a magnetic tongue assembly, a lock tongue driving piece, a handle knob, a lock core knob and an elastic reset device. This design greatly reduces the number of components, reduces the manufacturing cost and improves the assembly efficiency. In addition, by reducing the number of moving parts, the possibility of failure is effectively reduced, and the common problems of jamming or damage in traditional complex structures are avoided. For example, after long-term use, the incidence of problems such as spring fatigue and gear wear is significantly reduced. This simplified design enhances the reliability and durability of the lock body and reduces the failure points that may occur during long-term use. In particular, by introducing the elastic reset device, the user experience is further improved because the lock body can quickly return to the ready state in the case of normal unlocking or accidental unlocking. At the same time, this design scheme balances the convenient operation of ordinary users and high-level security requirements, supports fast unlocking and allows additional security locking through the lock core, and meets the application requirements of different scenes. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a schematic view of the unlocking state of the mechanical magnetic lock body of the present application.

[0020] Figure 2 is a schematic view of the anti-lock state of the mechanical magnetic lock body of the present application.

[0021] Figure 3 is a structural schematic view of the lock tongue of the present application.

[0022] Figure 4 is a structural schematic view of the magnetic tongue assembly of the present application. DETAILED DESCRIPTION

[0023] The features of the present application and other related features are further described in detail by the following examples, so as to facilitate the understanding of the skilled in the art:

[0024] For the convenience of description and understanding, the positional relationship of the components in the present application, such as front, back, up, down, left, right, inside and outside, please refer to the orientation shown in Figure 1 . The A direction in Figure 2 is clockwise, and vice versa.

[0025] As Figures 1 to 4As shown, the case provides a simple structure of mechanical magnetic lock body, including the lock shell 100, the lock shell 100 is movably mounted with rotatable magnetic tongue assembly 1, lock tongue driving piece 2, handle driving piece 3 and lock cylinder driving piece 4. That is to say, the magnetic tongue assembly 1, the lock tongue driving piece 2, the handle driving piece 3 and the lock cylinder driving piece 4 are movably mounted on the lock shell and are in a state of being rotatable relative to the lock shell. When the door is closed, the magnet in the magnetic tongue assembly 1 is attracted to the magnet on the door frame, so that the door is automatically locked; when the lock needs to be opened, the magnetic tongue assembly 1 is driven to retract into the lock shell 100, and the locking state is released. The lock tongue driving piece 2 acts as an intermediate transmission element, receives driving force from the handle driving piece 3 or the lock cylinder driving piece 4, and converts it into action on the magnetic tongue assembly 1 to achieve unlocking or locking. The handle driving piece 3 is arranged at the upper end of the lock tongue driving piece 2, and rotating the handle driving piece 3 can drive the lock tongue driving piece 2 to rotate and abut against the magnetic tongue assembly 1, thereby driving the magnetic tongue assembly 1 to retract into the lock shell 100. That is to say, under the premise that the lock cylinder driving piece 4 does not anti-lock the lock tongue driving piece 2, when the user presses the handle, the handle driving piece 3 rotates, thereby driving the lock tongue driving piece 2 to rotate, and finally making the magnetic tongue assembly 1 retract into the lock shell, completing the unlocking process. The lock cylinder driving piece 4 is arranged at the lower end of the lock tongue driving piece 2, and rotating the lock cylinder driving piece 4 clockwise can drive the lock tongue driving piece 2 to rotate and abut against the magnetic tongue assembly 1, thereby driving the magnetic tongue assembly 1 to retract into the lock shell 100, achieving the purpose of unlocking. Counterclockwise rotation of the lock cylinder driving piece 4 can drive the lock tongue driving piece 2 to rotate and lock the lock tongue driving piece 2 and the magnetic tongue assembly 1 through the locking structure, thereby locking the magnetic tongue assembly 1 in the form of extending outward from the lock shell, realizing the anti-lock function. The lock shell 100 further comprises an elastic reset device 5 arranged on the right side of the lock tongue driving piece 2. The elastic reset device is used for automatic reset after the lock tongue driving piece 2 rotates and belongs to the non-locking state, thereby releasing the transmission of the lock tongue driving piece 2, the handle driving piece 3 and the lock cylinder driving piece 4 with the magnetic tongue assembly 1, and ensuring the next action. Through the combination of the above technical features, the case realizes significant technical progress. By greatly simplifying the structure, not only the manufacturing cost and assembly difficulty are reduced, but also the reliability and durability of the system are improved. Most importantly, the production cost is significantly reduced, and the economic benefit is good. The simple and efficient transmission mechanism and intuitive operation experience improve the user's use experience. The simple structure also facilitates the user's disassembly and maintenance, and the user can operate it by himself without professional technical personnel. The improved structure of the mechanical magnetic lock body has high cost performance and wide market prospect.

[0026] Further, as Figures 1-3As shown, the lock shell 100 is provided with a first pin shaft 101, and the elastic reset device 5 comprises a first torsion spring 51 which is rotationally connected to the first pin shaft 101. The first pin shaft 101 provides a mounting point and a fulcrum for the first torsion spring 51. The first torsion spring 51 comprises a first torsion arm 511 and a second torsion arm 512, the first torsion arm 511 always abuts against the right inner wall surface of the lock shell 100, and the second torsion arm 512 always abuts against the lock tongue poking member 2. The first torsion spring 51 is a common torsion spring in the art, comprising two torsion arms at both ends, that is, no matter when the lock tongue poking member 2 rotates or is static, the first torsion arm 511 always abuts against the right inner wall surface of the lock shell 100, and the second torsion arm 512 always abuts against the lock tongue poking member 2, and through such continuous abutment, it is ensured that the first torsion spring 51 can always stably transmit a reset force to reset the lock tongue poking member 2. Compared with the prior art, only by setting a first torsion spring 51 in cooperation with the structural design of the lock tongue poking member 2, the same reset effect is achieved, and the structure is relatively simple, the cost is low, the operation is convenient, and the practicality is good. It should be noted that in specific implementation, the lock tongue poking member 2 and the handle poking peach 3 are integrally formed, which is convenient for production and assembly, and the structure is stable.

[0027] Further, continue as Figures 1-3As shown, the lock shell 100 is also provided with a support column 102 for supporting the second torsion arm 512, which is arranged on the left side of the first pin shaft 101. The support column 102 is used to support the second torsion arm 512, ensuring that the second torsion arm 512 can maintain stable contact in different rotating states of the latch knob 2. And through the support column 102, an additional support point is provided to ensure the consistency and stability of the path of the second torsion arm 512 moving on the latch knob 2 during the rotation of the latch knob 2, preventing deviation or jamming. At the same time, the friction between the second torsion arm 512 and the latch knob 2 is reduced, prolonging the service life. The latch knob 2 includes a first clamping groove 21 formed on the right side wall of the latch knob 2, a first slope 22 located below the first clamping groove 21, a second clamping groove 23 located below the first slope 22, and a second slope 24 located below the second clamping groove 23. In the normal state, the magnetic tongue assembly 1 always maintains an outwardly extended state, at this time, the end of the second torsion arm 512 is embedded in the first clamping groove 21, when the lock cylinder knob 4 is rotated counterclockwise, the latch knob 2 can be driven to rotate and be locked with the magnetic tongue assembly 1 through the locking structure, thereby locking the magnetic tongue assembly 1 in the form of extending out of the lock shell; at this time, the end of the second torsion arm 512 remains abutting against the right side wall of the latch knob 2, gradually slides from the second clamping groove 23 to the first clamping groove 21 through the first slope 22, and finally is clamped in the first clamping groove 21, at this time the latch knob 2 cannot be reset and needs to be driven to rotate by rotating the lock cylinder knob 4 clockwise to unlock the latch knob 2 and reset it, that is, the second torsion arm 512 always moves in the path composed of the first clamping groove 21, the first slope 22, the second clamping groove 23, and the second slope 24, and the path composed of the first clamping groove 21, the first slope 22, the second clamping groove 23, and the second slope 24 provides different positioning points and stable sliding paths for the second torsion arm 512, ensuring the stable connection between the second torsion arm 512 and the latch knob 2. The design of this structure greatly reduces the number of parts compared to the prior art, makes the rotation of the latch knob 2 more smooth, and greatly reduces the noise during rotation and resetting.

[0028] With reference to the foregoing Figures 1-3As shown, further, the lock shell 100 is provided with a second pin shaft 103, and the lock tongue actuator 2 is rotationally connected to the second pin shaft 103. The second pin shaft 103 provides a mounting point and a rotation fulcrum for the lock tongue actuator 2, and serves as a fulcrum for the lock tongue actuator 2, so that the lock tongue actuator 2 can rotate around the second pin shaft 103 when subjected to external force. The lock tongue actuator 2 includes a first actuating piece 25, a second actuating piece 26, a third actuating piece 27, and a limiting portion 28. The lock shell 100 is provided with a first limiting block 104 for blocking the limiting portion 28 to limit the rotation angle of the lock tongue actuator 2. The lock shell 100 is also provided with a second limiting block 105 for blocking the third actuating piece 27 to limit the rotation angle of the lock tongue actuator 2. The first limiting block 104 and the second limiting block 105 cooperate to limit the maximum rotation angle of the lock tongue actuator 2, preventing excessive rotation and damage to internal components, and effectively ensuring the consistency and stability of the opening, closing, and reverse locking stroke of the lock tongue actuator 2. In specific implementation, the limiting portion 28 is limited by the first limiting block 104, limiting the rotation angle when the lock core actuator 4 reverses the lock tongue actuator 2. The third actuating piece 27 is limited by the second limiting block 105, limiting the rotation angle of the lock tongue actuator 2 when the lever actuator 3 or the lock core actuator 4 drives the lock tongue actuator 2 to retract the magnetic tongue assembly 1 into the lock shell 100 for unlocking operation.

[0029] As Figures 1-4As shown, specifically, the magnetic tongue assembly 1 includes a rotatably mounted latch rod 11, a latch tongue 12 connected to the upper end of the latch rod 11, and a crank arm 13 connected to the lower end of the latch rod 11. The latch rod 11, as the core component of the magnetic tongue assembly 1, is responsible for transmitting force from the crank arm 13 and driving the latch tongue 12 to move. A magnet is detachably mounted inside the latch tongue 12. The latch tongue 12 achieves a natural locking function by attracting a corresponding magnet on the door frame through its built-in magnet. The detachable design of the magnet facilitates replacement or maintenance. A third pin 106 is mounted on the lock housing 100, and the latch rod 11 is rotatably mounted on the third pin 106. The third pin 106 serves as the mounting point and rotation fulcrum of the latch rod 11, allowing the entire magnetic tongue assembly 1 to rotate around the third pin 106 when subjected to external force. In practical implementation, apart from the detachable magnet, the magnetic tongue assembly 1, including the locking tongue rod 11, locking tongue 12, and crank arm 13, is manufactured as a single piece, resulting in good structural stability, convenient production and assembly, and reduced costs. Rotating the locking tongue actuating component 2 enables the crank arm 13 to be connected to the second lever 26 and the third lever 27 respectively. The crank arm 13 serves as an intermediate component connecting the locking tongue actuating component 2 and the magnetic tongue assembly 1. The crank arm 13 is connected between the third lever 27 and the second lever 26; that is, when the locking tongue actuating component 2 rotates clockwise, the third lever 27 abuts against the lower end of the crank arm 13, thereby achieving the transmission connection between the locking tongue actuating component 2 and the magnetic tongue assembly 1, and locking the magnetic tongue assembly 1 in the form of extending outwards from the lock housing 100. When the latch actuator 2 rotates counterclockwise, the second lever 26 abuts against the upper end of the crank arm 13, thereby achieving a transmission connection between the two, which in turn drives the magnetic tongue assembly 1 to retract into the lock housing 100 to unlock.

[0030] Continue as Figures 1-4 As shown, specifically, the locking structure includes a third slot 271 on the third lever 27 and a protrusion 131 at the lower end of the crank arm 13. When the magnetic tongue assembly 1 is in the outward extension position of the lock housing, as the lock tongue actuator 2 rotates clockwise, the protrusion 131 can be engaged in the third slot 271, thereby locking the magnetic tongue assembly 1 in the outward extension position of the lock housing 100. The cooperation between the third slot 271 and the protrusion 131 ensures that the magnetic tongue assembly 1 can be firmly locked in the outward extension state, preventing accidental unlocking or loosening due to external impact. Using the existing third lever 27 and crank arm 13 for locking reduces additional locking components, lowering design complexity and production costs.

[0031] Furthermore, continue as Figures 1-4As shown, the third dial 27 is provided with a first protrusion 272 at the end thereof and a fourth clamping slot 273 connected to the left side of the first protrusion 272, the first protrusion 272 is connected to the left side of the third clamping slot 271, and the protrusion 131 is provided with a fifth clamping slot 1311 formed at the end thereof and a second protrusion 1312 symmetrically arranged on the left and right sides of the fifth clamping slot 1311. In the prior art, similar magnetic lock bodies have certain safety risks. Specifically, when the user does not use the key to drive the lock core dial 4 to lock the lock bolt dial 2, the magnetic force of the magnet of the lock bolt head 12 is not enough, at this time, the lock bolt head 12 is in a state of partially extending out of the lock shell 100 and cannot be completely inserted into the door plate buckle box. Under this premise, the front end of the third dial 27 abuts against the protrusion 131 at the lower end of the crank arm 13, at this time, if the user forcibly uses the handle dial 3 action or the lock core dial 4 drives the lock bolt dial 2 to rotate to try to unlock, if the rotation direction is reversed, or encounters external impact force, the protrusion 131 is easily clamped into the third clamping slot 271, resulting in direct locking and unable to open the door, which is inconvenient for the user. However, through the arrangement of the first protrusion 272, the fourth clamping slot 273, the second protrusion 1312, and the fifth clamping slot 1311, and the structural cooperation therebetween, the user can not be clamped in this case, which is convenient for the user to unlock. The specific principle is that the front end of the third dial 27 abuts against the protrusion 131 at the lower end of the crank arm 13, at this time, due to the clamping cooperation of the first protrusion 272 and the fourth clamping slot 273 and the clamping cooperation of the second protrusion 1312 and the fifth clamping slot 1311, even if the user reverses the rotation direction of the lock bolt dial 2 or encounters external impact force, only the first protrusion 272 will be clamped into the fourth clamping slot 273 and cannot be taken out, and the second protrusion 1312 will be clamped into the fifth clamping slot 1311 and cannot be taken out, which plays a temporary locking state, at this time, the user only needs to drive the lock bolt dial 2 in the correct direction to act, which can successfully unlock, is convenient and practical, and avoids unnecessary trouble.

[0032] As Figure 1 , Figure 2 , Figure 4As shown, the lock shell 100 is further provided with a first limiting plate 108 and a second limiting plate 109, which are arranged on the right side of the lock tongue head 12 and abut against the first limiting plate 108 and the second limiting plate 109 when the lock tongue head 12 is fully retracted into the lock shell 100. By arranging the first limiting plate 108 and the second limiting plate 109, the final position of the lock tongue head 12 after being fully retracted into the lock shell 100 is accurately controlled, so that the lock tongue head 12 cannot exceed the set safe retraction range, and the failure caused by improper operation or external impact is avoided. In specific implementation, rubber pads are arranged on the first limiting plate 108 and the second limiting plate 109. By the buffering effect of the rubber pads, the impact and friction of the lock tongue head 12 on the first limiting plate 108 and the second limiting plate 109 are reduced, and the product life is prolonged. At the same time, the rubber pads can effectively absorb the noise generated when the lock tongue head 12 contacts the first limiting plate 108 and the second limiting plate 109, further improving the mute effect of the mechanical magnetic lock body.

[0033] As shown, Figures 1-3 The handle knob 3 includes a fourth knob 31, a fifth knob 32, a sixth knob 33, and a handle mounting hole 34. In specific implementation, the handle mounting hole 34 facilitates the installation of an external handle. A limiting column 110 for limiting the rotation angle of the handle knob 3 is arranged between the fourth knob 31 and the fifth knob 32, and the limiting column 110 is fixedly connected to the lock shell 100. The limiting column 110 cooperates with the fourth knob 31 and the fifth knob 32 to limit the maximum rotation angle of the handle knob 3, prevent excessive rotation, and ensure that the handle knob 3 cannot exceed the set safe rotation range. At the same time, the consistency and stability of the rotation angle of the handle knob 3 when it is rotated to unlock are ensured. By using the existing fourth knob 31 and fifth knob 32 to cooperate with the limiting column 110 for limiting, additional limiting components are reduced, and the design complexity and production cost are reduced. Rotating the handle knob 3 can make the sixth knob 33 in transmission connection with the lock tongue driving member 2. That is, rotating the handle knob 3 can make the sixth knob 33 abut against the lock tongue driving member 2, thereby driving the lock tongue driving member 2 to rotate, so as to drive the magnetic tongue assembly 1 to retract into the lock shell 100, thereby achieving unlocking. A reset spring 35 that can automatically reset the handle knob 3 after rotation is arranged on the handle knob 3, so as to ensure that the handle knob 3 can automatically reset after operation and maintain the initial state for the next operation.

[0034] Next, the working principle of the present case will be described throughout the text:

[0035] When the magnetic tongue assembly 1 is in the state of extending out of the lock shell 100, the second torsion arm 512 end is embedded in the first clamping groove 21, and keeps abutting against the lock tongue driving member 2. The handle knob 3 and the lock core knob 4 are both in the initial position

[0036] Unlocking process through the lock core knob 4: the user drives the lock core knob 4 clockwise with the key, so that the first paddle 25 drives the latch driver 2 counterclockwise. The counterclockwise rotation of the latch driver 2 eventually makes the second paddle 26 abut the upper end of the toggle arm 13 and drive the toggle arm 13 downward, thereby driving the latch rod 11 to drive the latch head 12 to retract into the lock shell 100, achieving unlocking. After the latch head 12 is completely retracted into the lock shell 100, it abuts the rubber pad on the first limiting plate 108 and the second limiting plate 109, ensuring that it does not move excessively and reducing noise. After unlocking, the end of the second torsion arm 512 slides out of the first clamping groove 21 and moves along the path of the first slope 22, the second clamping groove 23 and the second slope 24, and finally abuts the second slope 24.

[0037] Unlocking process through the handle knob 3: the user rotates the handle knob 3 clockwise, so that the sixth paddle 33 abuts the limiting portion 28 of the latch driver 2, driving the latch driver 2 counterclockwise. With the counterclockwise rotation of the latch driver 2, the second paddle 26 abuts the upper end of the toggle arm 13 and drives the toggle arm 13 downward, thereby driving the latch rod 11 to drive the latch head 12 to retract into the lock shell 100, achieving unlocking. After the latch head 12 is completely retracted into the lock shell 100, it abuts the first limiting plate 108 and the second limiting plate 109. After unlocking is completed, the reset spring 35 automatically resets the handle knob 3, preparing for the next operation.

[0038] Locking through the lock core knob 4: the user drives the lock core knob 4 counterclockwise with the key, so that the first paddle 25 drives the latch driver 2 clockwise. The clockwise rotation of the latch driver 2 eventually makes the third paddle 27 abut the lower end of the toggle arm 13 and drive the toggle arm 13 upward, thereby driving the latch rod 11 to drive the latch head 12 to extend outward from the lock shell 100, achieving locking. During the locking process, the convex strip 131 is clamped into the third clamping groove 271, locking the magnetic tongue assembly 1 in the outwardly extended state. After locking, the end of the second torsion arm 512 is embedded in the first clamping groove 21, maintaining abutment with the latch driver 2.

[0039] As described above, the case protects a simple mechanical magnetic lock body, and all technical solutions similar or similar to the case should be shown to fall within the protection scope of the case.

Claims

1. A simple structure mechanical magnetic lock body, comprising a lock housing (100), a rotatable magnetic tongue assembly (1), a lock tongue pusher (2), a handle pusher (3) and a lock cylinder pusher (4) movably installed in the lock housing (100), characterized in that: The handle knob (3) is arranged on the upper end of the bolt knob (2), and rotating the handle knob (3) can drive the bolt knob (2) to rotate and abut against the magnetic bolt assembly (1), thereby driving the magnetic bolt assembly (1) to retract into the lock shell (100); the lock core knob (4) is arranged on the lower end of the bolt knob (2), and rotating the lock core knob (4) clockwise can drive the bolt knob (2) to rotate and abut against the magnetic bolt assembly (1), thereby driving the magnetic bolt assembly (1) to retract into the lock shell (100); rotating the lock core knob (4) counterclockwise can drive the bolt knob (2) to rotate and lock the bolt knob (2) and the magnetic bolt assembly (1) through the locking structure, thereby locking the magnetic bolt assembly (1) in the form of extending outward from the lock shell; the lock shell (100) is further provided with an elastic reset device (5) arranged on the right side of the bolt knob (2), and the elastic reset device is used for automatic reset after the bolt knob (2) rotates and in the non-locked state.

2. A mechanically simple magnetic lock body according to claim 1, characterized in that: The lock shell (100) is provided with a first pin shaft (101), and the elastic reset device (5) comprises a first torsion spring (51) rotatably connected to the first pin shaft (101), wherein the first torsion spring (51) comprises a first torsion arm (511) and a second torsion arm (512), the first torsion arm (511) always abuts against the right inner wall surface of the lock shell (100), and the second torsion arm (512) always abuts against the bolt knob (2).

3. A mechanically simple magnetic lock body according to claim 2, characterized in that: The lock shell (100) is further provided with a support column (102) for supporting the second torsion arm (512), and the support column (102) is arranged on the left side of the first pin shaft (101); the bolt knob (2) comprises a first clamping groove (21) formed on the right side wall of the bolt knob (2), a first slope (22) located below the first clamping groove (21), a second clamping groove (23) located below the first slope (22), and a second slope (24) located below the second clamping groove (23).

4. A mechanically simple magnetic lock body according to claim 3, characterized in that: The lock shell (100) is provided with a second pin shaft (103), and the bolt knob (2) is rotatably connected to the second pin shaft (103); the bolt knob (2) comprises a first knob (25), a second knob (26), a third knob (27), and a limiting portion (28); the lock shell (100) is provided with a first limiting block (104) for blocking the limiting portion (28) to limit the rotation angle of the bolt knob (2); and the lock shell (100) is further provided with a second limiting block (105) for blocking the third knob (27) to limit the rotation angle of the bolt knob (2).

5. A mechanically simple magnetic lock body according to claim 4, characterized in that: The magnetic tongue assembly (1) comprises a rotatingly arranged lock tongue rod (11), a lock tongue head (12) connected to the upper end of the lock tongue rod (11), and a crank arm (13) connected to the lower end of the lock tongue rod (11), the lock tongue head (12) is detachably provided with a magnet, the lock shell (100) is provided with a third pin shaft (106), the lock tongue rod (11) is rotatably arranged on the third pin shaft (106), and rotating the lock tongue actuator (2) can make the crank arm (13) be in transmission connection with the second actuating piece (26) and the third actuating piece (27) respectively.

6. A mechanically simple magnetic lock body according to claim 5, characterized in that: The locking structure comprises a third clamping groove (271) formed on the third actuating piece (27) and a convex strip (131) arranged at the lower end of the crank arm (13).

7. A mechanically simple magnetic lock body according to claim 6, characterized in that: The third actuating piece (27) is provided with a first protrusion (272) at the end thereof and a fourth clamping groove (273) connected to the left side of the first protrusion (272), the first protrusion (272) is connected to the left side of the third clamping groove (271), and the convex strip (131) comprises a fifth clamping groove (1311) formed at the end thereof and a second protrusion (1312) symmetrically arranged on the left and right sides of the fifth clamping groove (1311).

8. A mechanically simple magnetic lock body according to claim 4, characterized in that: The lock shell (100) is further provided with a first limiting plate (108) and a second limiting plate (109), the first limiting plate (108) and the second limiting plate (109) are arranged on the right side of the lock tongue head (12) and abut against the first limiting plate (108) and the second limiting plate (109) when the lock tongue head (12) is completely retracted into the lock shell (100).

9. A mechanically simple magnetic lock body according to claim 8, characterized in that: The first limiting plate (108) and the second limiting plate (109) are provided with rubber gaskets.

10. A mechanically simple magnetic lock body according to claim 1, characterized in that: The handle actuator (3) comprises a fourth actuating piece (31), a fifth actuating piece (32), a sixth actuating piece (33), and a handle mounting hole (34), the fourth actuating piece (31) and the fifth actuating piece (32) are provided with a limiting column (110) for limiting the rotation angle of the handle actuator (3), the limiting column (110) is fixedly connected to the lock shell (100), rotating the handle actuator (3) can make the sixth actuating piece (33) be in transmission connection with the lock tongue actuator (2), and the handle actuator (3) is provided with a reset spring (35) capable of automatically resetting the handle actuator (3) after rotation.

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