Lock anti-locking mechanism and lock

Abstract

The present invention discloses a lock reverse locking mechanism, comprising a lock shell, an outer handle, an inner handle and a reverse locking assembly, wherein a locking plate is arranged on one side of the lock shell; the outer handle is arranged on the other side of the lock shell; one end of the handle has a rotating part, the rotating part passes through the locking plate and is rotatably connected to the lock shell; the reverse locking assembly is arranged in the rotating part and can move to a first position and a second position along the central axis of the rotating part; when the reverse locking assembly moves to the first position, the locking plate and the reverse locking assembly are engaged with each other, so that the outer handle is in a reverse locking state; when the reverse locking assembly moves to the second position, the reverse locking assembly is separated from the locking plate, so that the outer handle is in an unlocked state. The overall internal structure is simpler than the traditional structure, with fewer parts and components, and is relatively simple in the assembly and production process, saving material costs and labor costs.

Description

Technical Field

[0001] The present invention relates to the technical field of locks, and in particular to a lock anti-locking mechanism and a lock thereof. Background Art

[0002] Smart electronic locks are rapidly applied in the fields of smart home, office door lock management, smart rental, smart tourism, smart hotel management, etc. Smart electronic locks are a kind of door locks that use passwords or fingerprint recognition to open the door. They are now widely used in various places such as homes and shopping malls. Smart electronic locks are usually equipped with an anti-locking mechanism. When the user uses the anti-locking mechanism to lock the door from inside the door, people outside the door cannot open it. The internal structure of the existing anti-locking mechanism is too complicated, with many parts, which is complicated in the assembly process and increases material and labor costs. Summary of the invention

[0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, one object of the present invention is to provide a lock anti-locking mechanism, comprising:

[0004] A lock housing, wherein a locking plate is provided on one side of the lock housing;

[0005] An outer handle, the outer handle being arranged on the other side of the lock housing;

[0006] An inner handle, one end of which has a rotating portion, the rotating portion passes through the locking plate and is rotatably connected to the lock housing;

[0007] An anti-locking assembly, the anti-locking assembly is disposed in the rotating portion and can move to a first position and a second position along the central axis of the rotating portion;

[0008] When the anti-locking assembly moves to the first position, the locking plate and the anti-locking assembly engage with each other, so that the anti-locking assembly is in an anti-locking state;

[0009] When the anti-locking assembly moves to the second position, the anti-locking assembly is disengaged from the locking plate, so that the anti-locking assembly is in an unlocked state.

[0010] Preferably, according to one embodiment of the present invention, the anti-locking component comprises:

[0011] A push button, one end of which is inserted from the rotating portion into the inner handle;

[0012] an elastic member, one end of which is disposed inside the push button and the other end of which extends outside the push button;

[0013] A locking member is arranged at the other end of the push button so that the locking member and the push button move together to the first position or the second position.

[0014] Preferably, according to an embodiment of the present invention, the locking plate is provided with a through hole, and locking grooves are arranged opposite to each other in the through hole;

[0015] The outer wall of the locking member is provided with a locking portion corresponding to the locking groove;

[0016] When the locking member moves to the first position, the locking member moves into the through hole so that the locking portion is embedded in the locking groove;

[0017] When the locking member moves to the second position, the locking member moves out of the through hole, so that the locking portion is disengaged from the locking groove.

[0018] Preferably, according to an embodiment of the present invention, the inner wall of the rotating part is provided with a first buckle part and a limiting part opposite to each other, and the first buckle part and the limiting part are located on the same straight line;

[0019] Wherein, the outer wall of the push button is provided with a second buckle portion opposite thereto, and the second buckle portion is configured to be freely compressed or spring-up;

[0020] When the push button moves toward the locking member, the second buckle portion moves between the first buckle portion and the limiting portion, so that the push button is in the first position;

[0021] When the rotating portion is rotated, the first locking portion and the limiting portion are disengaged from the second locking portion, so that the elastic member pushes the push button to move to the second position.

[0022] Preferably, according to an embodiment of the present invention, grooves are provided on the outer walls of the push button and the locking member along the length direction, and the first snap portion and the limiting portion are both located in the grooves. When the rotating portion rotates, the first snap portion and the limiting portion abut against the side walls of the groove to drive the push button and the locking member to rotate.

[0023] Preferably, according to one embodiment of the present invention, a pin is arranged on the outer wall of the locking member close to the push button, and the push button is provided with a pin hole corresponding to the pin, and the pin is used to be inserted into the pin hole to connect the locking member with the push button.

[0024] Preferably, according to an embodiment of the present invention, the push button and the locking member are configured to be formed separately or integrally;

[0025] When the push button is in the first position, the push button is flush with the inner handle; when the push button is in the second position, the push button extends out of the inner handle.

[0026] Preferably, according to an embodiment of the present invention, it also includes a square rotating rod, one end of which is connected to the locking member, and the other end passes through the lock housing and is connected to the lock core, and the locking member is used to drive the square rotating rod to rotate so that the lock core is unlocked.

[0027] Preferably, according to an embodiment of the present invention, the elastic member is an elliptical spring, and the elastic member is located at one end of the locking member and abuts against the square rotating rod.

[0028] The present invention also provides a lock comprising the anti-locking mechanism as described above.

[0029] When the anti-lock mechanism provided by the present invention is in use, it only needs to move the anti-lock component to the first position so that the locking plate locks the anti-lock component, so that the outer handle is in the anti-lock state, and the lock is prevented from being opened from outside the door; when the anti-lock component is in the unlocked state, the anti-lock component will be separated from the locking plate and move to the second position, so that the lock can be opened from outside the door. Its overall internal structure is simpler than the traditional structure, with fewer parts and components, and is relatively simple in the assembly process, saving material costs and labor costs.

[0030] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] 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 the structures shown in these drawings without paying creative work.

[0032] Figure 1 is a schematic structural diagram of a lock provided in an embodiment of the present invention;

[0033] Figure 2 is a structural exploded view of a lock anti-locking mechanism provided in an embodiment of the present invention;

[0034] Figure 3 is a structural exploded view of the anti-locking assembly and the locking plate provided in an embodiment of the present invention;

[0035] Figure 4 is a cross-sectional view of a lock anti-locking mechanism provided in an embodiment of the present invention;

[0036] Figure 5 yes Figure 4 An enlarged view of section A is shown;

[0037] Figure 6 is another cross-sectional view of the anti-locking mechanism of the lock provided in an embodiment of the present invention;

[0038] Figure 7 yes Figure 6 An enlarged view of part B is shown.

[0039] Description of Figure Numbers:

[0040] 10. Lock housing; 20. Locking plate; 201. Through hole; 202. Locking groove; 30. Inner handle; 301. Rotating part; 302. First snap-fit ​​part; 303. Limiting part; 40. Anti-locking assembly; 401. Push button; 4011. Second snap-fit ​​part; 4012. Groove; 4013. Pin hole; 402. Elastic member; 403. Locking member; 4031. Locking part; 4032. Pin; 50. Square rotating rod; 60. Lock core; 70. Outer handle.

[0041] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0042] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but are not to be construed as limiting the present invention. All other embodiments obtained by ordinary technicians in the field without creative work based on the embodiments of the present invention are within the scope of protection of the present invention.

[0043] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “circumferential”, “radial”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0044] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0045] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0047] The lock anti-locking mechanism and the lock according to the embodiment of the present invention are described in detail below with reference to the accompanying drawings.

[0048] Reference Figure 1 and Figure 2 As shown, the lock anti-lock mechanism provided according to an embodiment of the present invention includes a lock shell 10, an outer handle 70, an inner handle 30 and an anti-lock assembly 40, a locking plate 20 is arranged on one side of the lock shell 10; the outer handle 70 is arranged on the other side of the lock shell; one end of the inner handle 30 has a rotating part 301, and the rotating part 301 passes through the locking plate 20 and is rotatably connected to the lock shell 10; the anti-lock assembly 40 is arranged in the rotating part 301, and can be moved to a first position and a second position along the central axis of the rotating part 301; when the anti-lock assembly 40 moves to the first position, the locking plate 20 and the anti-lock assembly 40 are engaged with each other, so that the outer handle 70 is in an anti-lock state; when the anti-lock assembly 40 moves to the second position, the anti-lock assembly 40 is disengaged from the locking plate 20, so that the outer handle 70 is in an unlocked state.

[0049] In this embodiment, the lock shell 10 can be installed on the door, and the inner handle 30 is the inner handle 30 inside the door. The locking plate 20 arranged on the lock shell 10 is fixed to the lock shell 10 by screws. The inner handle 30 is installed inside the door, and an outer handle 70 is also installed outside the corresponding door. The outer handle 70 can be opened by fingerprint recognition, password recognition, etc., and the anti-locking mechanism can be locked from the inside, so that the opening method from the outside of the door is not feasible. The lock core 60 and other components can be installed in the lock shell 10, so that the lock core 60 and other components are fixed in the door, thereby forming an overall lock structure, and can protect each component. It can be understood that the specific structure of the lock core 60 and other components can be set with reference to the existing technology, and will not be described one by one here.

[0050] Among them, the first position can be represented by the anti-lock component 40 moving to the position where the locking plate 20 is engaged, and the second position can be represented by the anti-lock component 40 moving to the position away from the locking plate 20. When the anti-lock component 40 is in the anti-lock state, the lock core 60 will be driven when the lock is opened from the outside. The lock core 60 is connected to the anti-lock component 40 and is locked together with the anti-lock component 40. Therefore, the lock cannot be opened from the outside. Since the overall structure of the anti-lock component 40 is simpler, the overall stability is better and the safety is higher.

[0051] When the anti-lock mechanism provided by the present invention is in use, it is only necessary to move the anti-lock component 40 to the first position so that the locking plate 20 locks the anti-lock component 40 to put it in an anti-lock state to prevent the lock from being opened from outside the door; when the anti-lock component 40 is in an unlocked state, the anti-lock component 40 will separate from the locking plate 20 and move to the second position, so that the lock can also be opened from outside the door. Its overall internal structure is simpler than the traditional structure, with fewer parts and components, and is relatively simple in the assembly process, saving material costs and labor costs.

[0052] Reference Figures 3 to 5 As shown, the anti-locking assembly 40 includes a push button 401, an elastic member 402 and a locking member 403. One end of the push button 401 is inserted from the rotating part 301 into the inner handle 30; one end of the elastic member 402 is arranged in the push button 401 and the other end extends out of the push button 401; the locking member 403 is arranged at the other end of the push button 401, so that the locking member 403 and the push button 401 move together to the first position or the second position.

[0053] In this embodiment, the push button 401 can push the elastic member 402 and the locking member 403 to move together, so that the push button 401, the elastic member 402 and the locking member 403 can move to the first position or the second position, that is, the push button 401 can move back and forth in the rotating part 301, and the user can press the push button 401 so that the push button 401 pushes the locking member 403 to move toward the locking plate 20, so that the locking member 403 is locked by the locking plate 20, and the elastic member 402 can be used to push the locking member 403 and the push button 401 to move to the second position, so that the locking member 403 is disengaged from the locking plate 20 to unlock it; wherein, the push button 401 is connected to the locking member 403, and the length of the push button 401 and the locking member 403 can be set according to the axial length of the rotating part 301.

[0054] Optionally, the push button 401 and the locking member 403 may be configured to be cylindrical so as to match with the rotating portion 301 and be driven by the rotating portion 301 to rotate together.

[0055] Specifically, the locking plate 20 is provided with a through hole 201, and a locking groove 202 is arranged opposite to the through hole 201; the outer wall of the locking member 403 is provided with a locking portion 4031 corresponding to the locking groove 202; when the locking member 403 moves to the first position, the locking member 403 moves into the through hole 201 so that the locking portion 4031 is embedded in the locking groove 202; when the locking member 403 moves to the second position, the locking member 403 moves out of the through hole 201 so that the locking portion 4031 is disengaged from the locking groove 202.

[0056] Among them, the locking plate 20 can be set to be circular, and the through hole 201 can be set at the center of the locking plate 20, and the diameter of the through hole 201 can be set to be consistent with the diameter of the locking piece 403; the locking groove 202 is opened at the circumferential position of the locking hole, so the locking portion 4031 of the locking plate 20 is set on the outer wall of the locking piece 403, when the locking piece 403 moves into the through hole 201, the locking portion 4031 is embedded in the locking groove 202, so that the locking piece 403 is fixed by the locking plate 20, so that the locking piece 403 and the push button 401 cannot be rotated from outside the door to open the lock cylinder 60.

[0057] It can be understood that the locking plate 20 is fixed on the lock shell 10, so the locking plate 20 cannot be rotated, and the shape of the locking plate 20 can be set according to actual needs, and the shape of the locking groove 202 can be matched with the locking portion 4031; for example, the locking groove 202 is circular, arc-shaped or square, etc., and the corresponding locking portion 4031 can also be set to be circular, arc-shaped or square, etc., so that the locking portion 4031 can be embedded in the locking groove 202 to achieve overall anti-locking.

[0058] Reference Figure 6 and Figure 7 As shown, the inner wall of the rotating part 301 is provided with a relative first snap portion 302 and a limiting portion 303, and the first snap portion 302 and the limiting portion 303 are located on the same straight line; wherein, the outer wall of the push button 401 is provided with a relative second snap portion 4011, and the second snap portion 4011 is configured to be freely compressed or popped up; when the push button 401 moves toward the locking member 403, the second snap portion 4011 moves between the first snap portion 302 and the limiting portion 303, so that the push button 401 is in the first position; when the rotating part 301 is rotated, the first snap portion 302 and the limiting portion 303 are disengaged from the second snap portion 4011, so that the elastic member 402 pushes the push button 401 to move to the second position.

[0059] In this embodiment, the first snap portion 302 and the limiting portion 303 are arranged relative to each other in the circumferential direction of the rotating portion 301, and the first snap portion 302 and the limiting portion 303 are arranged in sequence along the length direction of the rotating portion 301, and the second snap portion 4011 and the first snap portion 302 and the limiting portion 303 provided on the push button 401 are in the same straight line. Therefore, when the push button 401 is pressed, the second snap portion 4011 moves toward the first snap portion 302 and is squeezed by the first snap portion 302. After entering between the first snap portion 302 and the limiting portion 303, it is freely bounced up, thereby being buckled with the first snap portion 302, and forming a thrust in the opposite direction with the elastic member 402, thereby locking the push button 401, preventing the push button 401 and the locking member 403 from moving again, and ensuring the stability of the anti-locking process.

[0060] Furthermore, when unlocking is required, by rotating the inner handle 30, the inner handle 30 drives the rotating part 301 and the first snap part 302 and the limiting part 303 to rotate together, so that the first snap part 302 and the limiting part 303 are dislocated and disengaged from the second snap part 4011, and the elastic member 402 arranged in the push button 401 can elastically push the push button 401 and the locking member 403 to move to the second position, thereby completing the unlocking operation.

[0061] Among them, the first snap portion 302 and the limiting portion 303 are arranged as protrusions on the inner wall of the rotating portion 301, and the second snap portion 4011 is arranged as a protrusion on the surface of the push button 401. The first snap portion 302 and the second snap portion 4011 can be arranged as an oblique arc, so that when the first snap portion 302 is pressed against the second snap portion 4011, they can press against each other, and the second snap portion 4011 can be pushed and slid between the first snap portion 302 and the limiting portion 303. When pressing the push button 401, the resistance can be reduced, and the process of pressing the anti-lock is smoother.

[0062] Specifically, a groove 4012 is formed on the outer wall of the push button 401 and the locking member 403 along the length direction, and the first buckle portion 302 and the limiting portion 303 are both located in the groove 4012. When the rotating portion 301 rotates, the first buckle portion 302 and the limiting portion 303 abut against the side wall of the groove 4012 to drive the push button 401 and the locking member 403 to rotate.

[0063] In this embodiment, when the push button 401 is arranged in the rotating part 301, a groove 4012 is arranged on the outer wall of the push button 401, so that the first locking part 302 and the limiting part 303 can be located in the groove 4012. When the inner handle 30 is rotated, when the rotating part 301 drives the first locking part 302 and the limiting part 303 to be dislocated and disengaged from the second locking part 4011, and the push button 401 is elastically restored to the second position by the elastic member 402, and then when the inner handle 30 continues to be rotated, the side wall of the groove 4012 can abut against the first locking part 302 and the limiting part 303, thereby driving the push button 401 and the locking member 403 to rotate, wherein the locking member 403 is connected to the lock core 60 through the square rotating rod 50, and when rotating, it can drive the square rotating rod 50 to unlock the lock core 60 for unlocking.

[0064] Specifically, the outer wall of the locking member 403 close to the push button 401 is provided with a pin 4032, and the push button 401 is provided with a pin hole 4013 corresponding to the pin 4032. The pin 4032 is used to be inserted into the pin hole 4013 to connect the locking member 403 with the push button 401. The side of the locking member 403 close to the push button 401 is embedded in the push button 401, and the elastic member 402 is compressed in the push button 401. In this way, the locking member 403 and the push button 401 are fixed by the pin 4032, which makes the assembly between the push button 401 and the locking member 403 more convenient. In use, pressing the push button 401 can simultaneously drive the locking member 403 to move so as to reverse the lock.

[0065] Further, the push button 401 and the locking member 403 are configured to be formed separately or integrally; when the push button 401 is in the first position, the push button 401 is flush with the inner handle 30; when the push button 401 is in the second position, the push button 401 extends out of the inner handle 30. The push button 401 and the locking member 403 can be formed separately and connected to each other, or can be formed integrally, and those skilled in the art can set them according to actual needs; when the push button 401 is pressed to the first position, the push button 401 can be set to be flush with the inner handle 30, and after the inner handle 30 is turned, the push button 401 is pushed to the second position by the elastic member 402, so as to pop out of the inner handle 30; it can be understood that the height of the push button 401 extending out of the inner handle 30 can be set according to actual needs, and can be set according to the length of the push button 401 and the locking member 403 to ensure that pressing is more convenient.

[0066] Furthermore, it also includes a square rotating rod 50, one end of which is connected to the locking member 403, and the other end passes through the lock housing 10 and is connected to the lock core 60. The locking member 403 is used to drive the square rotating rod 50 to rotate so that the lock core 60 is driven to unlock.

[0067] Among them, the square rotating rod 50 needs to be connected to the outer handle 70 so that the outer handle 70 can control the rotation of the square rotating rod 50; when unlocking the door from inside, the push button 401 and the locking member 403 can be driven to rotate together by rotating the inner handle 30, and the square rotating rod 50 can be driven by the locking member 403 to open the lock core 60; when the locking member 403 is moved to abut against the locking plate 20, the square rotating rod 50 is also fixed accordingly, thereby, the square rotating rod 50 cannot be rotated outside the door to open the lock core 60, thereby ensuring its safety.

[0068] Specifically, the elastic member 402 is an elliptical spring. One end of the elastic member 402 located at the locking member 403 abuts against the square rotating rod 50 .

[0069] Among them, when the push button 401 is pressed, the push button 401 compresses the elastic member 402 inside it, and the square rotating rod 50 is inserted into the locking member 403. Therefore, when the elastic member 402 is compressed, the square rotating rod 50 can form a pushing force on the elastic member 402, and the elastic member 402 itself has elastic force. When the push button 401 moves toward the second position, the square rotating rod 50 can push the elastic member 402 so that the locking member 403 and the push button 401 are pushed to the second position, thereby unlocking; setting the elastic member 402 to an elliptical shape can enable the end of the elastic member 402 close to the square rotating rod 50 to be able to abut against the square rotating rod 50, so that the locking member 403 and the push button 401 can be quickly unlocked, which is more convenient to use.

[0070] The present invention also provides a lock including the above-mentioned anti-locking mechanism. The lock may be a fingerprint recognition lock, a password recognition lock, a mechanical lock, etc. The lock may adopt the above-mentioned anti-locking mechanism to realize its anti-locking, and its technical effects and technical solutions may be consistent with the above-mentioned ones, and will not be described one by one here.

[0071] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0072] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A lock anti-locking mechanism, characterized in that: include: A lock housing, wherein a locking plate is provided on one side of the lock housing; An outer handle, the outer handle being arranged on the other side of the lock housing; An inner handle, one end of which has a rotating portion, the rotating portion passes through the locking plate and is rotatably connected to the lock housing; An anti-locking assembly, the anti-locking assembly is disposed in the rotating portion and can move to a first position and a second position along the central axis of the rotating portion; When the anti-locking assembly moves to the first position, the locking plate and the anti-locking assembly engage with each other, so that the outer handle is in an anti-locking state; When the anti-locking assembly moves to the second position, the anti-locking assembly disengages from the locking plate, so that the outer handle is in an unlocked state; The anti-locking component comprises: A push button, one end of which is inserted from the rotating portion into the inner handle; an elastic member, one end of which is disposed inside the push button and the other end of which extends outside the push button; a locking member, wherein the locking member is disposed at the other end of the push button so that the locking member and the push button move together to the first position or the second position; The locking plate is provided with a through hole, and locking grooves are arranged opposite to each other in the through hole; The outer wall of the locking member is provided with a locking portion corresponding to the locking groove; When the locking member moves to the first position, the locking member moves into the through hole so that the locking portion is embedded in the locking groove; When the locking member moves to the second position, the locking member moves out of the through hole so that the locking portion is disengaged from the locking groove; The inner wall of the rotating part is provided with a first buckle part and a limiting part opposite to each other, and the first buckle part and the limiting part are located on the same straight line; Wherein, the outer wall of the push button is provided with a second buckle portion opposite thereto, and the second buckle portion is configured to be freely compressible or spring-up; When the push button moves toward the locking member, the second buckle portion moves between the first buckle portion and the limiting portion, so that the push button is in the first position; When the rotating part is rotated, the first buckle part and the limiting part are separated from the second buckle part, so that the elastic member pushes the push button to move to the second position; The outer walls of the push button and the locking member are provided with grooves along the length direction, and the first buckle portion and the limiting portion are both located in the grooves. When the rotating portion rotates, the first buckle portion and the limiting portion abut against the side walls of the groove to drive the push button and the locking member to rotate.

2. The anti-locking mechanism of the lock according to claim 1, characterized in that: The locking member is provided with a pin on the outer wall close to the push button, and the push button is provided with a pin hole corresponding to the pin. The pin is used to be inserted into the pin hole to connect the locking member with the push button.

3. The lock anti-locking mechanism according to claim 1, characterized in that: The push button and the locking member are configured to be formed separately or integrally; When the push button is in the first position, the push button is flush with the inner handle; when the push button is in the second position, the push button extends out of the inner handle.

4. The lock anti-locking mechanism according to claim 1, characterized in that: It also includes a square rotating rod, one end of which is connected to the locking member, and the other end passes through the lock housing and is connected to the lock core. The locking member is used to drive the square rotating rod to rotate so that the lock core is driven to unlock.

5. The lock anti-locking mechanism according to claim 4, characterized in that: The elastic member is an elliptical spring, and one end of the elastic member is located on the locking member and abuts against the square rotating rod.

6. A lock, characterized in that: It comprises the anti-locking mechanism as claimed in any one of claims 1 to 5.

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