Keyhole cleaning system, fast-response near-field lock control system and control method

Abstract

The present invention belongs to the field of cleaning technology, and in particular relates to a keyhole cleaning system, a fast-response near-field lock control system, and a control method. The present invention provides a keyhole cleaning system, comprising: a lock housing; a lock tongue, which is slidably assembled on the side wall of the lock housing; a lock core, which is rotatably arranged in the lock housing; a cleaning device, which is sleeved on the outer wall of the lock core and faces the keyhole; an anti-theft component, which is arranged in the keyhole and linked to the lock tongue; wherein, when a key is inserted into the lock core through the keyhole, the cleaning device is suitable for blowing air into the anti-theft component to clean impurities in the anti-theft component; by setting the cleaning device, when the key is inserted into the keyhole, the cleaning device blows air outward to clean impurities in the keyhole, thereby preventing impurities from staying in the keyhole and preventing the keyhole from being blocked by impurities.

Description

Technical Field

[0001] The present invention belongs to the field of cleaning technology, specifically relates to general cleaning, and in particular to a keyhole cleaning system, a fast-response near-field lock control system and a control method. Background Art

[0002] A lock refers to a device that serves a sealing function, which includes a lock, key and its accessories. In addition to being opened with a key, a lock can also be opened with commands such as light, electricity, magnetism, sound and fingerprints.

[0003] With the development of smart door locks, the use of mechanical keys has been reduced. However, in order to avoid short circuit or power failure of the smart electronic control system, the mechanical keyhole still needs to be retained on the external panel of the door lock. In order to improve the anti-theft performance, an anti-theft component is often set in the mechanical keyhole, and the anti-theft component is suitable for sliding in the keyhole. Dust or impurities entering the anti-theft component will affect the smoothness of the sliding of the anti-theft component, thereby affecting the smooth operation of the anti-theft component.

[0004] Therefore, how to prevent the anti-theft component from being blocked by impurities or dust, resulting in poor sliding, is a technical problem that urgently needs to be solved in this field.

[0005] It should be noted that the above information disclosed in this background technology section is only used to understand the background technology of the present application concept, and therefore, the above description is not considered to constitute information of the prior art. Summary of the Invention

[0006] The embodiments of the present disclosure provide at least a keyhole cleaning system, a fast-response near-field lock control system, and a control method.

[0007] In a first aspect, an embodiment of the present disclosure provides a keyhole cleaning system, comprising:

[0008] A lock tongue, which is slidably mounted on the side wall of the lock housing;

[0009] a lock cylinder rotatably disposed within the lock housing;

[0010] A cleaning device is sleeved on the outer wall of the lock core and faces the lock hole;

[0011] An anti-theft component is arranged in the keyhole and is linked to the lock tongue;

[0012] When the key is inserted into the lock core through the lock hole, the cleaning device is suitable for blowing air toward the anti-theft component to clean out impurities in the anti-theft component.

[0013] In an optional embodiment, the cleaning device includes: a power supply assembled in the lock housing;

[0014] an air pump disposed in the lock housing and electrically connected to a power source;

[0015] A cleaning ring is sleeved on the outer wall of the lock core, connected to the air pump, and has a plurality of air holes on its side wall;

[0016] The air pump delivers compressed air into the cleaning ring, and the compressed air is blown toward the lock hole through the air hole.

[0017] In a second aspect, the embodiments of the present disclosure further provide a fast-response near-field lock control system including:

[0018] The anti-theft component includes: an outer sleeve, which is sleeved on the outer wall of the lock core and is transmission-connected with the lock tongue;

[0019] an inner sleeve, which is slidably disposed in the outer sleeve and is adapted to rotate circumferentially relative to the outer sleeve;

[0020] The inner sleeve drives the outer sleeve to rotate axially, and the outer sleeve is suitable for driving the lock tongue to retract inwardly;

[0021] Among them, when the lock core is illegally opened, the lock tongue cannot be opened when the lock core rotates circumferentially;

[0022] When the key fits the lock cylinder, the inner sleeve of the anti-theft component slides inward to the unlocking position, and the lock cylinder drives the anti-theft component to rotate synchronously to open the lock tongue.

[0023] In an optional embodiment, a positioning ring is fixed to the outer sleeve, and the inner diameter of the positioning ring is larger than the outer diameter of the inner sleeve;

[0024] The positioning ring is symmetrically provided with two limiting grooves, and the limiting grooves are arranged along the radial direction of the positioning ring.

[0025] In an optional embodiment, two limit blocks are symmetrically provided on the outer wall of the inner sleeve, one limit block corresponds to one limit groove, and the limit block is suitable for being inserted into the limit groove.

[0026] In an optional embodiment, the anti-theft component further includes two dustproof plates, which are arranged opposite to each other and are respectively hinged in the inner sleeve to open and close the keyhole.

[0027] In an optional embodiment, a sensor is provided on the inner wall of the inner sleeve corresponding to the dustproof plate, and the sensor is electrically connected to the air pump.

[0028] The dustproof plate is flipped around the hinge point to abut against the sensor, and the air pump is suitable for delivering compressed air to the cleaning ring.

[0029] In an optional embodiment, a lifting plate is provided in the lock housing for lifting, and an upper end of the lifting plate is provided with an inclined surface adapted to the lock tongue;

[0030] The side wall of the lifting plate is provided with a linear rack;

[0031] The outer wall of the outer sleeve is fixed with a gear that matches the linear rack;

[0032] The outer sleeve rotates circumferentially to drive the lifting plate to move up and down.

[0033] In an optional embodiment, the lock tongue is slidably mounted on the side wall of the lock housing;

[0034] a lock cylinder rotatably disposed within the lock housing;

[0035] The anti-theft component rotates in the lock hole and is linked with the lock tongue;

[0036] The anti-theft component includes: an outer sleeve, which is sleeved on the outer wall of the lock core and is transmission-connected with the lock tongue;

[0037] an inner sleeve, which is slidably disposed in the outer sleeve and is adapted to rotate circumferentially relative to the outer sleeve;

[0038] The inner sleeve drives the outer sleeve to rotate axially, and the outer sleeve is suitable for driving the lock tongue to retract inward.

[0039] Thirdly, the present disclosure also provides a method for controlling a keyhole system, including:

[0040] When the lock cylinder is illegally opened, the lock tongue cannot be opened when the lock cylinder rotates circumferentially;

[0041] When the key fits the lock cylinder, the inner sleeve of the anti-theft component slides inward to the unlocking position, and the lock cylinder drives the anti-theft component to rotate synchronously to open the lock tongue.

[0042] The beneficial effects of the present invention are as follows: the lockhole cleaning system and the fast-response near-field lock control system, i.e., the control method, utilize a cleaning device to deliver compressed air into the lockhole when a key is inserted, thereby preventing dust or impurities from clogging the lockhole. Furthermore, the anti-theft component prevents the lock cylinder from being opened illegally, preventing the lock tongue from being opened by the circumferential rotation of the lock cylinder. When the key is engaged with the lock cylinder, the inner sleeve of the anti-theft component slides inward to the unlocking position, and the lock cylinder drives the anti-theft component to rotate synchronously to open the lock tongue. This prevents the lock tongue from being opened by an illegal key, thereby improving the anti-theft performance of the lock housing.

[0043] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purposes and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description, claims and drawings.

[0044] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are specifically cited herein and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0046] Figure 1 A perspective view of a keyhole cleaning system provided by an embodiment of the present disclosure;

[0047] Figure 2 A three-dimensional view of the interior of a lock housing provided in an embodiment of the present disclosure;

[0048] Figure 3 A cutaway perspective view of an anti-theft assembly provided in an embodiment of the present disclosure;

[0049] Figure 4 This is a schematic diagram of the inner sleeve driving the outer sleeve to rotate according to an embodiment of the present disclosure.

[0050] In the picture:

[0051] 1. Lock housing; 10. Lifting plate; 11. Incline;

[0052] 2. Lock tongue;

[0053] 3. Lock cylinder;

[0054] 4. Cleaning device; 41. Cleaning ring; 42. Air pump;

[0055] 5. Anti-theft component; 51. Outer sleeve; 52. Inner sleeve; 53. Positioning ring; 54. Limiting groove; 55. Limiting block; 56. Dustproof plate; 57. Gear. DETAILED DESCRIPTION

[0056] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0057] In this document, when it is mentioned that a first component is located on a second component, this may mean that the first component may be directly formed on the second component, or that a third component may be interposed between the first component and the second component. In addition, in the drawings, the thickness of components may be exaggerated or reduced in order to effectively describe technical content.

[0058] Herein, example embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as "at least one of..." when following a list of elements modify the entire list of elements, rather than modifying individual elements in the list. For example, the expression "at least one of a, b, and c" should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0059] The terms used herein are only used to describe specific exemplary configurations and are not intended to be limiting. As used herein, the singular articles "a", "an" and "the" may also be intended to include plural forms, unless otherwise clearly indicated herein. The terms "comprise", "include" and "have" are inclusive and therefore specify the presence of features, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components and / or combinations thereof. The method steps, processes and operations described herein should not be interpreted as necessarily requiring them to be performed in the particular order discussed or shown, unless specifically identified as an execution order. Additional or alternative steps may be adopted.

[0060] As used herein, the phrases "in one embodiment," "according to one embodiment," "in some embodiments," and the like generally refer to the fact that the particular feature, structure, or characteristic following the phrase may be included in at least one embodiment of the present disclosure. Thus, a particular feature, structure, or characteristic may be included in more than one embodiment of the present disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms "example," "exemplary," and the like are used to "serve as an example, instance, or illustration." Any implementation, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations, aspects, or designs. Instead, the use of the terms "example," "exemplary," and the like is intended to present concepts in a concrete manner.

[0061] Research has found shortcomings in existing technologies. With the development of smart door locks, the use of mechanical keys has been decreasing. However, to prevent short circuits or power outages in the intelligent electronic control system, the mechanical keyhole still needs to be retained on the door lock's exterior panel. To improve anti-theft performance, an anti-theft component is often installed within the mechanical keyhole, which is suitable for sliding within the keyhole. However, dust or impurities entering the anti-theft component will affect the smooth sliding of the anti-theft component, thereby affecting its smooth operation. The anti-theft component may rust in humid environments (high humidity or rainy weather). The rotation and relative sliding of the inner and outer sleeves of the anti-theft component can cause rust to wear away and fall into the gap between the inner and outer sleeves. This rust can affect the smooth sliding of the anti-theft component, making cleaning the anti-theft component essential.

[0062] Therefore, how to prevent the anti-theft component from being blocked by impurities or dust, resulting in poor sliding, is a technical problem that urgently needs to be solved in this field.

[0063] The defects in the above solutions are the results obtained by the inventors after practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed by the present disclosure in this article should be the contributions made by the inventors to the present disclosure during the disclosure process.

[0064] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0065] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features therein may be combined with each other.

[0066] like Figures 1 to 4As shown, some embodiments provide a keyhole cleaning system, comprising: a lock housing 1, which is mounted on the side wall of a door; a lock tongue 2, which is slidably mounted on the side wall of the lock housing 1; when the lock tongue 2 slides outward, it is adapted to be inserted into a groove in the side wall of the door frame to function as a door stop; a lock cylinder 3, which is rotatably disposed within the lock housing 1; and a cleaning device 4, which is sleeved on the outer wall of the lock cylinder 3 and faces the keyhole; wherein, when a key is inserted into the lock cylinder 3 through the keyhole, the cleaning device 4 is adapted to blow air outward to clean impurities in the keyhole. The cleaning device 4 includes: a power supply, which is assembled in the lock housing 1; an air pump 42, which is arranged in the lock housing 1 and electrically connected to the power supply; a cleaning ring 41, which is sleeved on the outer wall of the lock core 3, connected to the air pump 42, and has a plurality of air holes on the side wall; an anti-theft component 5, which is arranged in the lock hole and linked to the lock tongue 2; the cleaning ring 41 is arranged inside the anti-theft component 5; wherein, when the lock core 3 is illegally opened, the illegal opening described in this embodiment refers to the use of violent prying or other methods of unlocking with non-original keys. The lock tongue 2 cannot be opened when the lock core 3 rotates circumferentially; when an illegal key is inserted into the lock core 3, the illegal key drives the lock core 3 to rotate. At this time, the lock core 3 can rotate circumferentially relative to the lock housing 1, and the lock core 3 cannot drive the gear 57 to rotate. If the key is compatible with the lock cylinder 3, after the key is inserted into the lock cylinder 3, the key can push the inner sleeve 52 to move synchronously toward the lock cylinder 3 until the limit block 55 is inserted into the limit groove 54. At this time, the key drives the lock cylinder 3 to rotate, and the inner sleeve 52 and the outer sleeve 51 rotate synchronously with the lock cylinder 3. The inner sleeve 52 of the anti-theft component 5 slides inward to the unlocking position, and the lock cylinder 3 drives the anti-theft component 5 to rotate synchronously to open the lock tongue 2. Among them, the air pump 42 delivers compressed air into the cleaning ring 41, and the compressed air is blown toward the anti-theft component through the air hole. When the key is inserted into the lock cylinder 3, the air pump 42 delivers compressed air into the cleaning ring 41, and the compressed air flows toward the anti-theft component to clean dust and impurities in the lock anti-theft component and prevent dust and impurities from accumulating in the anti-theft component. Furthermore, in order to ensure that the air pump and other actuators that require power in this embodiment can operate normally, this embodiment can be connected to an external power supply to power the air pump and gas actuator.

[0067] Reference Attachment Figure 3Some embodiments provide a fast-response near-field lock control system, including: the anti-theft component 5 includes an outer sleeve 51, which is sleeved on the outer wall of the lock cylinder 3 and is in transmission connection with the lock tongue 2; the outer sleeve 51 is rotatably mounted on the door sidewall and is located on the outer ring of the lock hole; and an inner sleeve 52 is slidably mounted within the outer sleeve 51 and is adapted to rotate circumferentially relative to the outer sleeve 51. When an illegal key is inserted into the lock cylinder 3, the lock cylinder 3 is driven to rotate, which drives the inner sleeve 52 to rotate synchronously. At this time, the inner sleeve 52 does not slide toward the lock cylinder 3, and therefore, the inner sleeve 52 cannot drive the outer sleeve 51 to rotate synchronously. When a key compatible with the lock cylinder 3 is inserted into the lock cylinder 3, the key pushes the inner sleeve 52 toward the lock cylinder 3. When the inner sleeve 52 moves to the unlocking position, i.e., the limit block 55 is inserted into the limit groove 54, the key drives the lock cylinder 3 to rotate, and the lock cylinder 3 is adapted to drive the inner sleeve 52 and the outer sleeve 51 to rotate synchronously. The inner sleeve 52 drives the outer sleeve 51 to rotate axially, and the outer sleeve 51 is suitable for driving the lock tongue 2 to retract inward.

[0068] Reference Attachment Figure 3 The outer sleeve 51 is fixed with a positioning ring 53, the inner diameter of which is larger than the outer diameter of the inner sleeve 52; the positioning ring 53 is symmetrically provided with two limiting grooves 54, and the limiting grooves 54 are arranged radially along the positioning ring 53. The outer wall of the inner sleeve 52 is symmetrically provided with two limiting blocks 55, one limiting block 55 corresponds to one limiting groove 54, and the limiting blocks 55 are adapted to be inserted into the limiting grooves 54. When the limiting blocks 55 are not inserted into the limiting grooves 54, the inner sleeve 52 is adapted to rotate circumferentially relative to the outer sleeve 51; after the limiting blocks 55 are inserted into the limiting grooves 54, the inner sleeve 52 is adapted to drive the outer sleeve 51 to rotate synchronously with the shaft; and when the outer sleeve 51 rotates, it is adapted to drive the gear 57 to rotate synchronously. The circumferential rotation of the gear 57 is adapted to drive the lifting plate 10 to move upward or downward, so that the lock tongue 2 retracts or protrudes from the lock housing 1.

[0069] Furthermore, the anti-theft assembly 5 includes two dust shields 56, which are disposed opposite each other and hingedly connected to the inner sleeve 52 to open and close the keyhole. The dust shields 56 prevent dust and impurities from entering the keyhole. When the key pushes against the dust shields 56 and is inserted into the lock cylinder 3, the cleaning ring 41 delivers compressed air toward the keyhole to clean out impurities and dust.

[0070] Preferably, a sensor is provided on the inner wall of the inner sleeve 52 corresponding to the dustproof plate 56, which is electrically connected to the air pump 42, wherein the dustproof plate 56 flips around the hinge point to abut against the sensor, and the air pump 42 is suitable for delivering compressed air to the cleaning ring 41.

[0071] Reference Attachment Figure 3A lifting plate 10 is provided in the lock housing 1 for lifting. The upper end of the lifting plate 10 is provided with an inclined surface 11 adapted to the lock tongue 2. When the lifting plate 10 moves upward, the inclined surface 11 contacts the inclined groove provided in the lock tongue, and the lifting plate 10 is adapted to push the lock tongue inward to retract. The side wall of the lifting plate 10 is provided with a linear rack. Figure 2 The outer wall of the outer sleeve 51 is fixed with a gear 57 adapted to the linear rack. When the outer sleeve 51 rotates circumferentially, the gear 57 rotates synchronously to drive the linear rack to move up and down; wherein, the circumferential rotation of the outer sleeve 51 is suitable for driving the lifting plate 10 to move up and down.

[0072] Some embodiments provide a near-field lock control system, comprising: a lock tongue 2 slidably mounted on a side wall of a lock housing 1 ;

[0073] A lock cylinder 3 rotatably disposed within the lock housing 1 ;

[0074] The anti-theft component 5 rotates in the lock hole and is linked with the lock tongue 2;

[0075] The anti-theft component 5 includes: an outer sleeve 51, which is sleeved on the outer wall of the lock core 3 and is transmission-connected to the lock tongue 2;

[0076] an inner sleeve 52 slidably disposed within the outer sleeve 51 and adapted to rotate circumferentially relative to the outer sleeve 51;

[0077] The inner sleeve 52 drives the outer sleeve 51 to rotate axially, and the outer sleeve 51 is suitable for driving the lock tongue 2 to retract inward.

[0078] Some embodiments provide a method for controlling a keyhole system, the method comprising:

[0079] When the lock core 3 is illegally opened, the lock tongue 2 cannot be opened when the lock core 3 rotates circumferentially;

[0080] When the key fits into the lock core 3 , the inner sleeve 52 of the anti-theft component 5 slides inward to the unlocking position, and the lock core 3 drives the anti-theft component 5 to rotate synchronously to open the lock tongue 2 .

[0081] In the description of the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0082] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, terms such as "first", "second" and other numerical terms do not imply an order or sequence when used herein unless expressly indicated above. Therefore, without departing from the teachings of the example embodiments, the first element, component, region, layer or section discussed above may be referred to as a second element, component, region, layer or section.

[0083] With the above-described preferred embodiments of the present invention as a guide, and with reference to the above description, relevant personnel are fully capable of making various changes and modifications without departing from the technical scope of this invention. The technical scope of this invention is not limited to the contents of the specification and must be determined according to the scope of the claims.

Claims

1. A keyhole cleaning system, characterized in that: include: Lock housing (1); A lock tongue (2) which is slidably mounted on a side wall of the lock housing (1); A lock core (3) rotatably disposed within the lock housing (1); A cleaning device (4) is sleeved on the outer wall of the lock core (3) and faces the lock hole; An anti-theft component (5) is arranged in the lock hole and is linked to the lock tongue (2); When the key is inserted into the lock core (3) through the lock hole, the cleaning device (4) is suitable for blowing air toward the anti-theft component (5) to clean impurities in the anti-theft component (5); The anti-theft component (5) comprises: an outer sleeve (51), which is sleeved on the outer wall of the lock core (3) and is transmission-connected to the lock tongue (2); an inner sleeve (52) slidably disposed within the outer sleeve (51) and adapted to rotate circumferentially relative to the outer sleeve (51); When the lock core (3) is illegally opened, the lock tongue (2) cannot be opened when the lock core (3) rotates circumferentially; When the key is fitted into the lock core (3), the inner sleeve (52) slides inward to the unlocking position, and the lock core (3) drives the outer sleeve (51) to rotate synchronously to open the lock tongue (2); A positioning ring (53) is fixed inside the outer sleeve (51), and the inner diameter of the positioning ring (53) is larger than the outer diameter of the inner sleeve (52); Two limiting grooves (54) are symmetrically provided on the positioning ring (53), and the limiting grooves (54) are arranged radially along the positioning ring (53); Two limiting blocks (55) are symmetrically arranged on the outer wall of the inner sleeve (52), one limiting block (55) corresponds to one limiting groove (54), and the limiting block (55) is suitable for being inserted into the limiting groove (54); A lifting plate (10) is provided in the lock housing (1) for lifting, and an inclined surface (11) adapted to the lock tongue (2) is provided at the upper end of the lifting plate; The side wall of the lifting plate (10) is provided with a linear rack; The outer wall of the outer sleeve (51) is provided with a gear (57) adapted to the linear rack; The outer sleeve (51) rotates circumferentially and is suitable for driving the lifting plate (10) to move up and down.

2. The keyhole cleaning system according to claim 1, wherein: The cleaning device (4) comprises: a power supply, which is assembled in the lock housing (1); An air pump (42) is disposed in the lock housing (1) and is electrically connected to a power source; A cleaning ring (41) is sleeved on the outer wall of the lock core (3), is connected to the air pump (42), and has a plurality of air holes on its side wall; The air pump (42) delivers compressed air into the cleaning ring (41), and the compressed air is blown toward the lock hole through the air hole.

3. A fast-response near-field locking control system, characterized in that: Using the keyhole cleaning system as claimed in claim 2, The anti-theft component (5) further comprises two dustproof plates (56), which are arranged opposite to each other and are respectively hinged in the inner sleeve (52) to open and close the keyhole.

4. The fast-response near-field locking control system according to claim 3, characterized in that: A sensor is provided on the inner wall of the inner sleeve (52) corresponding to the dustproof plate (56), and is electrically connected to the air pump (42). The dustproof plate (56) is flipped around the hinge point as an axis to abut against the sensor, and the air pump (42) is suitable for delivering compressed air to the cleaning ring (41).

5. A method for controlling a keyhole system, characterized in that: Using the near-field locking control system according to any one of claims 3 or 4, the control method includes: When the lock core (3) is illegally opened, the lock tongue (2) cannot be opened when the lock core (3) rotates circumferentially; When the key is matched with the lock core (3), the inner sleeve (52) of the anti-theft component (5) slides inward to the unlocking position, and the lock core (3) drives the anti-theft component (5) to rotate synchronously to open the lock tongue (2).

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