A clutch mechanism of a door lock, an intelligent lock and a door

Abstract

A clutch mechanism for a door lock, an intelligent lock, and a door, comprising a handle joint, a clutch rotor rotatably disposed on the handle joint, and a clutch pin movably and telescopically disposed on the handle joint. An elastic pressing member is disposed between the clutch pin and the handle joint, and the elastic pressing member can apply an elastic force to the clutch pin to cause the clutch pin to move away from the clutch rotor. A guide limit structure is disposed on the handle joint and on the side of the clutch pin, and a locking block is displaceably disposed within the guide limit structure. Under the direction of the guide limit structure, the locking block can be displaced by external force to contact and lock the clutch pin, thereby preventing the clutch pin from moving to a position where the handle joint and the clutch rotor can be linked. The present invention locks the clutch pin that is activated by external force by arranging a locking block within the guide limit structure, thereby preventing the clutch pin from being linked to the clutch rotor due to external force, thereby preventing the clutch pin from being illegally unlocked by force due to external force, thereby improving the safety performance of the door lock.

Description

Technical Field

[0001] The present invention relates to the technical field of door locks, and in particular to a clutch mechanism of a door lock, a smart lock and a door. Background Art

[0002] The safety performance of smart locks with clutches is greatly improved. When unlocking a common clutch, the clutch pin needs to be pushed into the clutch rotor to connect it, so that the handle joint and the clutch rotor can rotate in conjunction. The door can be opened by pressing down the handle.

[0003] However, existing smart locks with clutches have obvious defects. When the panel shell of the door lock is violently struck, the clutch pin installed inside is forced to move upward, so that the clutch pin can be inserted into the clutch rotor under the violent vibration, so that the handle joint and the clutch rotor are linked. Therefore, an outsider can activate the clutch pin through violent knocking and vibration, and then press down the handle to unlock the door, which poses a great safety hazard.

[0004] For example, the public document of the Chinese invention patent application with patent number 201910954328.X discloses an anti-knock door opening mechanism consisting of a clutch seat, a rotating seat, a sleeve, a clutch pin and a clutch spring. Although it has a certain degree of anti-knock effect compared to ordinary smart locks, the technical solution disclosed in the patent is mainly to surround and clamp the clutch pin by tightening the two side blocking pieces through an arc spring. Therefore, as long as the vibration force on the clutch pin is greater than the obstruction force of the two blocking pieces tightened by the arc spring on the clutch pin, the clutch pin will break through the two blocking pieces and insert into the clutch rotor. The door can still be unlocked and opened by violent knocking by outsiders. Therefore, the problem of violent unlocking is not fundamentally solved, and the anti-knock function is not very effective. Summary of the Invention

[0005] The purpose of the present invention is to address the defects in the background technology and propose a clutch mechanism, a smart lock and a door for a door lock. When installing the clutch pin, a pair of elastic pressing parts are provided to apply elastic force to the clutch pin, so that the clutch pin tends to move away from the clutch rotor, and a locking block is provided in the guide limit structure. When subjected to violent knocking, because the clutch pin has a slower reaction time than the locking block, the locking block can lock the clutch pin that is displaced due to external force knocking, and can accurately prevent the clutch pin displacement caused by external force knocking from being linked with the clutch rotor, thereby preventing violent and illegal unlocking and improving the safety performance of the door lock.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A clutch mechanism for a door lock comprises a handle joint, a clutch rotor rotatably mounted on the handle joint, and a clutch pin movably and telescopically mounted on the handle joint. By moving the clutch pin and changing the relative position between the clutch pin and the clutch rotor, the handle joint and the clutch rotor can be connected or disconnected in a coordinated rotation.

[0008] An elastic pressing member is provided between the clutch pin and the handle joint, and the elastic pressing member can apply an elastic force to the clutch pin to move away from the clutch rotor;

[0009] A guide and limiting structure is provided on the handle joint and on the side of the clutch pin, and a locking block is displaceably provided in the guide and limiting structure;

[0010] Under the direction guidance of the guide limiting structure, the locking block can be displaced by external force to contact and lock the clutch pin, so as to prevent the clutch pin from moving to a position where the handle joint can be linked to the clutch rotor.

[0011] Furthermore, the guide limiting structure is obliquely arranged on the side of the clutch pin; the end of the guide limiting structure close to the clutch rotor is the first end, and the other end away from the clutch rotor is the second end; the first end is closer to the clutch pin than the second end; and the locking block is displaced toward the clutch rotor by external force, and contacts and locks the clutch pin from the first end.

[0012] Furthermore, the locking block is provided with a limiting portion; the clutch pin is provided with a locking matching portion; wherein, when the locking block is displaced by external force to conflict with the clutch pin, the limiting portion and the locking matching portion limit each other to achieve locking of the clutch pin by the locking block.

[0013] According to some embodiments of the present invention, the retaining portion is designed to be a concave shape that matches the shape of the locking fitting portion; or, the locking fitting portion is designed to be a concave shape that matches the shape of the retaining portion.

[0014] According to some embodiments of the present invention, the locking portion and the locking mating portion are respectively provided with concave and convex teeth that cooperate with each other to perform positioning.

[0015] According to some embodiments of the present invention, the end section of the locking block that contacts the clutch pin is designed to be a turning section, and the locking portion is provided at the end of the turning section.

[0016] According to some embodiments of the present invention, there are two guide and limiting structures, which are obliquely arranged on both sides of the clutch pin respectively; and the locking blocks are displaceably arranged in the two guide and limiting structures respectively.

[0017] Furthermore, the guide limiting structure is a receiving groove adapted to the locking block, and the space inside the receiving groove can allow the locking block to move under force; and the side wall of the receiving groove guides the locking block in the moving direction.

[0018] Furthermore, the handle joint is provided with a mounting cavity, and the clutch pin is telescopically arranged in the mounting cavity; and the clutch pin is elastically connected to the inner wall of the mounting cavity through the elastic pressing part, so that the clutch pin tends to move away from the clutch rotor; the mounting cavity is connected to the first end of the accommodating groove, and after the end of the clutch pin close to the clutch rotor passes through the mounting cavity, it can be inserted into the clutch rotor, so that the clutch rotor and the handle joint can rotate in conjunction.

[0019] Furthermore, a rotation station is recessed in the middle of the handle joint, and the clutch rotor is rotatably arranged on the rotation station; and the rotation station is provided with a through hole for the clutch pin to enter and exit; the clutch rotor is provided with a linkage notch, and the linkage notch and the through hole are both aligned with the clutch pin; the clutch pin passes through the mounting cavity, and after passing through the through hole, it penetrates into the linkage notch, so as to realize the linkage rotation of the clutch rotor and the handle joint.

[0020] Furthermore, the handle joint is provided with a reversing installation mechanism and two symmetrically arranged anti-knock structure groups, each of the anti-knock structure groups is suitable for an installation direction of the handle joint; each of the anti-knock structure groups includes: the clutch pin, the elastic pressing part, the guide limiting structure, and a locking block movably arranged in the guide limiting structure.

[0021] According to some embodiments of the present invention, the elastic pressing member is a spring, and two ends of the spring are respectively connected to the clutch pin and the handle joint in a mutually abutting manner.

[0022] Furthermore, a driving unit is included, and the driving unit is used to drive the clutch pin to move to a position where the handle joint can be linked to the clutch rotor.

[0023] The present invention also discloses a smart lock, including a door lock panel mechanism and a lock body, wherein the door lock panel mechanism includes a control operation structure; the clutch mechanism of the door lock is arranged inside the door lock panel mechanism; the control operation structure is connected to the handle joint; and the clutch rotor is linked to the lock body through a connecting piece.

[0024] The present invention also discloses a door, comprising a door body and the smart lock; the smart lock is installed on the door body.

[0025] Beneficial effects:

[0026] In the present invention, an elastic pressing member is provided between the clutch pin and the handle joint. The elastic pressing member can apply an elastic force to the clutch pin to cause the clutch pin to move away from the clutch rotor. Since the elastic force applied by the elastic pressing member to the clutch pin is in the opposite direction to the external force of the violent knock, when subjected to the same external knock force, the locking block will move toward the clutch rotor faster than the clutch pin.

[0027] At the same time, the locking block is displaceably disposed within the guide and limit structure. Therefore, when the locking block is displaced by external force, the guide and limit structure guides the locking block until it contacts and locks the clutch pin. This prevents the clutch pin from being actuated by external force, causing the clutch rotor to engage the handle joint. This effectively prevents unauthorized unlocking by force and substantially improves the safety of the door lock. The mutual limiting structure between the locking block and the clutch pin is cleverly designed and easy to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic structural diagram of an installed clutch structure according to an embodiment of the present invention;

[0029] Figure 2 This is a structural diagram of an embodiment of the present invention in which the handle joint is equipped with the anti-knock structure group on one side;

[0030] Figure 3 1. It is a structural schematic diagram of a retaining ring, a clutch pin and an elastic pressing member according to an embodiment of the present invention;

[0031] Figure 4 is a schematic structural diagram of a locking block according to an embodiment of the present invention;

[0032] Figure 5 is an exploded view of a clutch structure according to an embodiment of the present invention;

[0033] Figure 6 This is a schematic diagram of a clutch structure according to an embodiment of the present invention being struck by an external force;

[0034] Figure 7 is a schematic diagram of a clutch structure in a natural state according to an embodiment of the present invention;

[0035] Figure 8 yes Figure 7 A side sectional view of

[0036] Figure 9 This is a simplified schematic diagram of the structure of the anti-knock structure group of the present invention having only one side and only one locking block;

[0037] Figure 10 This is a simplified schematic diagram of the structure of the anti-knock structure group of the present invention having only one side and two locking blocks;

[0038] Figure 11 1 is a simplified schematic diagram of the structure of the anti-knock structure group having symmetrical two sides, with two locking blocks on each side, in some embodiments of the present invention;

[0039] Figure 12 1 is a simplified schematic diagram of the structure of the anti-knock structure group having symmetrical two sides and a single locking block on each side in some embodiments of the present invention;

[0040] Figure 13 It is a structural diagram of an embodiment of the smart lock of the present invention.

[0041] Among them: handle joint 1, clutch rotor 2, linkage notch 21, clutch pin 3, locking fitting part 31, tightening ring 32, elastic pressing part 4, guide limiting structure 5, first end 51, second end 52, pressure plate 53, locking block 6, limiting part 61, turning section 62, installation cavity 7, rotation station 8, through hole 81, drive unit 9, door lock panel mechanism 101, handle 102. DETAILED DESCRIPTION

[0042] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0043] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship 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, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. 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, unless otherwise specified, "multiple" means two or more.

[0044] In the description of the present invention, it should be noted that, 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 the specific circumstances.

[0045] A clutch mechanism for a door lock of the present invention comprises a handle joint 1, a clutch rotor 2 rotatably disposed on the handle joint 1, and a clutch pin 3 movably and telescopically disposed on the handle joint 1. By moving the clutch pin 3 and changing the relative position between the clutch pin 3 and the clutch rotor 2, the handle joint 1 and the clutch rotor 2 can be connected or disconnected in a coordinated rotation.

[0046] In the prior art, when the door lock is normally unlocked, the clutch pin 3 is driven to extend and inserted into the clutch rotor 2 to realize the linkage between the clutch rotor 2 and the handle joint 1. At this time, the door can be unlocked and opened by the door opening operating part of the door lock (for example, a door lock provided with a rotating handle 102, at this time, the handle 102 of the door lock is pressed down). When the door is normally locked, the clutch pin 3 retracts and disconnects from the clutch rotor 2, so that the clutch rotor 2 is disconnected from the handle joint 1. At this time, even if the door opening operating part of the door lock is actuated (for example, a door lock provided with a rotating handle 102, at this time, the handle 102 is pressed down), only the handle joint is rotating, and the clutch rotor connected to the lock body through the connecting piece will not be driven to rotate, and thus unlocking cannot be achieved.

[0047] However, in existing smart locks with clutches, if the door lock is subjected to violent strikes, such as using a tool such as a rubber hammer to vigorously strike the bottom surface of the door lock panel, the external force may also vibrate the clutch pin 3 to extend and connect to the clutch rotor 2, thereby achieving illegal unlocking, which poses a serious safety hazard to the door lock. In order to overcome the technical defects of existing smart locks, the present application solves this technical problem by designing the following solution, specifically:

[0048] like Figure 6-Figure 7 As shown, an elastic pressing member 4 is provided between the clutch pin 3 and the handle joint 1, and the elastic pressing member 4 can apply an elastic force to the clutch pin 3 to move the clutch pin 3 away from the clutch rotor 2. Therefore, as shown in FIG. Figure 7The figure shows the position of the clutch pin 3 in its natural state, where the handle joint 1 and the clutch rotor 2 are disengaged. During normal unlocking operation, the clutch mechanism moves the clutch pin 3 and inserts it into the clutch rotor 2, so that the handle joint 1 and the clutch rotor 2 can rotate in conjunction with each other. That is, after the clutch pin 3 is inserted into the clutch rotor 2, rotating the handle joint 1 can drive the clutch rotor 2 in conjunction with the clutch rotor 2, which in turn drives the lock body to move, thereby opening the door.

[0049] In order to prevent illegal unlocking by force, such as Figure 6 As shown, the present invention is provided with a guide and limiting structure 5 on the handle joint 1 and on the side of the clutch pin 3, and a locking block 6 is displaceably provided in the guide and limiting structure 5; under the direction of the guide and limiting structure 5, the locking block 6 can be displaced by external force to contact and lock the clutch pin 3, so as to prevent the clutch pin 3 from moving to a position where the handle joint 1 can be linked to the clutch rotor 2. When an outsider does not have a legal unlocking tool (such as a door card, key, etc.), in order to illegally open the door and enter the house, he or she may violently knock on the smart lock equipped with the clutch mechanism of the present invention in an attempt to vibrate the clutch pin to a position where the lock can be unlocked; and the locking block 6 of the present invention will also be subjected to the violent knocking. Since the elastic pressing part 4 applies an elastic force opposite to the direction of the violence to the clutch pin 3, the locking block 6 will move toward the clutch rotor 2 faster than the clutch pin 3. The action time difference formed by the force difference and the limiting effect of the guide limiting structure 5 can be used to guide the locking block 6 to move to contact the clutch pin 3 and lock the clutch pin 3 before it enters the linkage position, thereby preventing the clutch pin 3 from being violently knocked and unlocked.

[0050] When the clutch mechanism is installed inside the door lock panel, according to the conventional installation method of the door lock in this technical field, the door lock panel mechanism is installed against the surface of the door body, and the door body is installed perpendicular to the ground. Therefore, the locking block 6 in the clutch mechanism is subject to gravity in a natural state, and will naturally fall to its initial position after being violently knocked, without affecting the normal unlocking and opening of the door lock. Of course, if the clutch mechanism is installed in a horizontal state (non-normal installation operation), a smaller spring can be provided between the bottom surface of the locking block 5 and the guide limit structure 5 to reset it to the initial position, but the elastic force applied by the smaller spring to the locking block 6 needs to be smaller than the elastic force applied to the clutch pin 3, so as to ensure that when violently knocked, the locking block 6 moves toward the clutch rotor 2 faster than the clutch pin 3. Similar conventional technical means belong to the inventive concept of the present invention and therefore also fall within the scope of protection of the present invention. In order to facilitate the clear description of the present invention, the following content takes the clutch mechanism in the above-mentioned normal installation state as an example, but is not limited to this.

[0051] Specifically, such as Figure 6 and Figure 7 As shown, the guide and limiting structure 5 is obliquely disposed on the side of the clutch pin 3; the end of the guide and limiting structure 5 closest to the clutch rotor 2 is a first end 51, and the other end away from the clutch rotor 2 is a second end 52; the first end 51 is closer to the clutch pin 3 than the second end 52; and the locking block 6 is displaced toward the clutch rotor 2 by an external force, and contacts and locks the clutch pin 3 from the first end 51. The inclined guide and limiting structure 5 guides the locking block 6, which is forced to move upward, to gradually approach the clutch pin 3 in the middle, and contacts and locks the clutch pin 3 from the first end 51.

[0052] For the integrity of the overall structure, such as Figure 2 and Figure 5 As shown, in some embodiments of the present invention, the guide limit structure 5 is a receiving groove adapted to the locking block 6, and the space in the receiving groove can be used for the locking block 6 to move under force; and the side walls of the receiving groove guide the locking block 6 in the direction of movement. The movement of the locking block 6 is limited in the receiving groove, which effectively protects the locking block 6; in addition, as shown in FIG. Figure 6 As shown in FIG. 1 , when the locking block 6 is violently struck, it moves toward the clutch rotor 2. The inclined groove wall outside the receiving groove gradually guides the locking block 6 toward the clutch pin 3 in the middle, and extends from the first end 51 of the receiving groove to abut and clamp the locking clutch pin 3. When the violent knocking disappears, as shown in FIG. Figure 7 As shown, due to the force of gravity, the locking block 6 naturally falls downward. During the falling process, the locking block 6 slides along the inclined groove wall inside the receiving groove to its original position. In other words, the inclined groove wall outside the receiving groove gathers the locking block 6 to contact and lock the clutch pin 3; and the inclined groove wall inside the receiving groove releases the reset locking block 6. Therefore, during normal unlocking, it does not affect the insertion of the clutch pin 3 into the clutch rotor 2.

[0053] Furthermore, in order to prevent the locking block 6 in the receiving groove from being out of position, Figure 1 、 2 As shown in FIG5 , a pressing plate 53 is provided on the upper cover of the accommodating groove.

[0054] It should be noted that the guide limit structure 5 shown is not limited to the structural form of the accommodating groove. For example, it is only two baffles, and the locking block 6 is movably arranged between the two baffles. Changes in similar and equivalent technical structures all fall within the scope of protection of the present invention.

[0055] In order to enable the locking block 6 to lock the clutch pin 3 in time when subjected to violent knocking, in some embodiments of the present invention, such as Figures 3-5As shown, the locking block 6 is provided with a limiting portion 61; the clutch pin 3 is provided with a locking matching portion 31; wherein, when the locking block 6 is displaced by an external force to conflict with the clutch pin 3, the limiting portion 61 and the locking matching portion 31 limit each other, so as to achieve locking of the clutch pin 3 by the locking block 6.

[0056] Furthermore, in some embodiments of the present invention, Figure 2 and 3 As shown, the locking portion 61 is designed to be concave and match the shape of the locking fitting portion 31; or the locking fitting portion 31 is designed to be concave and match the shape of the locking portion 61. By designing the locking portion 61 or the locking fitting portion 31 to be concave and match the shape of the other, the clutch pin 3 can be locked more firmly and promptly when preventing knocking. Figure 3 As shown, the retaining portion 61 on the locking block 6 is in a concave arc shape, which is adapted to the cylindrical clutch pin 3 .

[0057] Furthermore, in order to enhance the effect of the stuck lock, in some embodiments of the present invention, as Figure 3-Figure 5 As shown, the locking portion 61 and the locking matching portion 31 are respectively provided with concave and convex teeth that cooperate with each other to limit the position.

[0058] In order to reduce the displacement stroke of the locking block 6 from the initial position to the contact and lock of the locking block 6 when the locking block 6 is subjected to force, the clutch pin is stuck with a shorter reaction time to limit its insertion into the clutch rotor 2. Further, in some embodiments of the present invention, as Figure 4 As shown, the end section of the locking block 6 that contacts the clutch pin 3 is designed as a turning section 62, and the locking portion 61 is provided at the end of the turning section 62. By providing the turning section 62, the span length between the guide limit structure 5 and the locking block 6 is shortened, and the force applied to the turning section 62 is consistent with the force applied to the clutch pin, thereby further improving the action sensitivity of the locking block 6 and optimizing the overall structure of the clutch mechanism. Figure 4 As shown, the end of the turning section 62 of the locking block 6 is designed to be the concave locking portion 61, and the concave and convex tooth patterns are provided on the concave wall surface.

[0059] To further enhance the locking effect, through the force analysis developed, in some embodiments of the present invention, such as Figure 10As shown, there are two guide and limit structures 5, each obliquely positioned on either side of the clutch pin 3. The locking blocks 6 are each displaceably positioned within the two guide and limit structures 5. The presence of two locking blocks 6 on either side ensures that the clutch pin 3 is subjected to opposing forces, resulting in a more even distribution of forces and a more precise moment of engagement and locking. Furthermore, the two guide and limit structures 5 are symmetrically positioned on the left and right sides of the clutch pin 3.

[0060] Since the clutch pin 3 needs to change its relative position with the clutch rotor 2 frequently, in order to protect the clutch pin 3, further, in some embodiments of the present invention, as shown in FIG. Figure 1 、 2 As shown in Figure 5, the handle joint 1 is provided with a mounting cavity 7, and the clutch pin 3 is telescopically arranged in the mounting cavity 7; and the clutch pin 3 is elastically connected to the inner wall of the mounting cavity 7 through the elastic pressing member 4, so that the clutch pin 3 tends to move away from the clutch rotor 2. The elastic force applied by the elastic pressing member 4 to the clutch pin 3 can not only slow down the speed of the clutch pin 3 moving toward the clutch rotor 2 when subjected to violence; but also the elastic force makes the clutch pin more sensitive when resetting; in some embodiments of the present invention, the elastic pressing member 4 is a spring, and the two ends of the spring are respectively connected to the clutch pin 3 and the handle joint 1 in contact with each other to provide elastic force for the clutch pin 3; specifically, as shown in Figure 5, the clutch pin 3 is elastically connected to the inner wall of the mounting cavity 7 through the elastic pressing member 4, so that the clutch pin 3 tends to move away from the clutch rotor 2. Figures 1-8 As shown, a limit ring is provided on the surface of the clutch pin 3; after the spring is sleeved on the outer periphery of the clutch pin 3, the clutch pin 3 is restricted in the mounting cavity 7 by means of a retaining ring 32; Figure 6 and 7 As shown, the two ends of the spring are pressed against the limiting ring and the inner top surface of the installation cavity 7 respectively, providing an elastic force for the clutch pin 3 to move away from the clutch rotor 2;

[0061] The installation cavity 7 is connected to the first end 51 of the accommodating groove, and the clutch pin 3, after passing through the installation cavity 7 at one end close to the clutch rotor 2, can be inserted into the clutch rotor 2, so that the clutch rotor 2 and the handle joint 1 can rotate in conjunction. For structural optimization, further, in some embodiments of the present invention, Figure 2 or Figure 5 As shown, the two receiving grooves on both sides of the clutch pin 3 are connected at their first ends 51; and the installation cavity 7 is provided with an inlet and outlet near the top of the clutch rotor 2, through which the clutch pin 3 can enter the first ends 51 connected to the two receiving grooves (and then be inserted into the clutch rotor 2). When violently struck, the locking block 6 will clamp the clutch pin here to prevent the clutch pin 6 from being further inserted into the clutch rotor 2.

[0062] It is understood that the installation method and position of the clutch pin 3 are not limited to the structural method of the installation cavity 7 shown in the drawings, so it should not be understood as a limitation to the present invention.

[0063] Furthermore, in some embodiments of the present invention, a rotation station 8 is recessed in the middle of the handle joint 1, and the clutch rotor 2 is rotatably mounted on the rotation station 8. The rotation station 8 is provided with a through hole 81 for the clutch pin 3 to enter and exit. The clutch rotor 2 is provided with a linkage notch 21, and both the linkage notch 21 and the through hole 81 are aligned with the clutch pin 3. The clutch pin 3 passes through the mounting cavity 7 and the through hole 81, and then penetrates the linkage notch 21, thereby achieving linkage rotation between the clutch rotor 2 and the handle joint 1. This allows the clutch rotor 2 to be stably mounted on the handle joint 1, and its linkage connection with the handle joint 1 can be controlled by the clutch pin 3.

[0064] Furthermore, in order to improve the adaptability of the product to the market, in some embodiments of the present invention, a reversing installation mechanism and two symmetrically arranged anti-knock structure groups are provided on the handle joint 1, and each of the anti-knock structure groups is suitable for an installation direction of the handle joint 1; each of the anti-knock structure groups includes: the clutch pin 3, the elastic pressing part 4, the guide limiting structure 5, and a locking block 6 movably arranged in the guide limiting structure 5.

[0065] It is understandable that in each of the anti-knock structure groups, changing the combination number, combination shape, position of the locking block 6 and the guide limit structure 5, as well as the structure of the clamping portion and the locking matching portion by conventional technical means, all fall within the scope of protection of the present invention. Figures 9-12 The diagram is a simplified schematic diagram of some embodiments. Furthermore, the aforementioned reversing installation mechanism can refer to the reversing installation mechanism of door locks with reversing installation functions. For example, the handle connector 1 is mounted inside the door lock panel via a torsion spring. The handle connector 1 is provided with a fixed shift block and a removable reversing installation screw. Reversing installation can be achieved by simply loosening the reversing installation screw, rotating the handle 102 180°, and then tightening the reversing installation screw. The clutch mechanism of the present invention is provided with two symmetrically arranged anti-knock structure groups, which not only provides a reversing installation function for the door lock, but also provides anti-knock safety for installation in both directions.

[0066] Furthermore, in some embodiments of the present invention, a driving unit 9 is further included, and the driving unit 9 is used to drive the clutch pin 3 to move to a position where the handle joint 1 can be linked to the clutch rotor 2. For example, an internal motor is provided to drive the clutch pin 3 to move by an electronically controlled motor; or a mechanical control switch is provided. Reference may be made to other driving mechanisms of the clutch pin 3. The present invention also discloses a smart lock, comprising a door lock panel mechanism 101 and a lock body, wherein the door lock panel mechanism 101 comprises a control operation structure (such as a rotating handle 102 and its connecting accessories); the clutch mechanism described above is provided inside the door lock panel mechanism 101; the control operation structure is connected to the handle joint 1; and the clutch rotor 2 is linked to the lock body through a connector (such as a square core). This constitutes a smart lock that prevents violent knocking to open the door and has high safety performance.

[0067] A door comprises a door body and the above-mentioned smart lock; the smart lock is installed on the door body, thereby forming a modern door that is resistant to violent knocking and has high safety performance.

[0068] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and are not to be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will readily conceive of other specific embodiments of the present invention without inventive effort, and such embodiments will fall within the scope of protection of the present invention.

Claims

1. A clutch mechanism for a door lock, comprising a handle joint, a clutch rotor rotatably disposed on the handle joint, and a clutch pin movably and telescopically disposed on the handle joint. By moving the clutch pin and changing the relative position between the clutch pin and the clutch rotor, the handle joint and the clutch rotor can be connected or disconnected in a coordinated rotational manner. The clutch mechanism is characterized in that: An elastic pressing member is provided between the clutch pin and the handle joint, and the elastic pressing member can apply an elastic force to the clutch pin to move away from the clutch rotor; A guide and limiting structure is provided on the handle joint and on the side of the clutch pin, and a locking block is displaceably provided in the guide and limiting structure; Under the direction of the guide limit structure, the locking block can be displaced by an external force to contact and lock the clutch pin, thereby preventing the clutch pin from moving to a position where the handle joint can be linked to the clutch rotor; The guide limiting structure is obliquely arranged on the side of the clutch pin; The end of the guide limiting structure close to the clutch rotor is a first end, and the other end away from the clutch rotor is a second end; The first end is closer to the clutch pin than the second end; The locking block is displaced toward the clutch rotor by an external force, and contacts and locks the clutch pin from the first end; The locking block is provided with a locking portion; The clutch pin is provided with a locking fitting portion; When the locking block is displaced by an external force to come into contact with the clutch pin, the locking portion and the locking matching portion limit each other, so that the clutch pin is locked by the locking block; The locking portion is designed to be a concave shape that matches the shape of the locking fitting portion; Alternatively, the locking fitting portion is designed to be a concave shape that matches the shape of the locking portion; The locking portion and the locking matching portion are respectively provided with concave and convex tooth patterns that cooperate with each other to limit the position; The end section of the locking block that contacts the clutch pin may be designed as a turning section, and the locking portion is provided at the end of the turning section; The guide limiting structure is a receiving groove adapted to the locking block, and the space inside the receiving groove can allow the locking block to move under force; The side wall of the accommodating groove guides the locking block in the moving direction.

2. The clutch mechanism of a door lock according to claim 1, characterized in that: There are two guide limit structures, which are respectively arranged obliquely on both sides of the clutch pin; The locking blocks are respectively displaceably arranged in the two guide limiting structures.

3. The clutch mechanism of a door lock according to claim 1, characterized in that: The handle joint is provided with a mounting cavity, and the clutch pin is telescopically arranged in the mounting cavity; Furthermore, the clutch pin is elastically connected to the inner wall of the mounting cavity through the elastic pressing member, so that the clutch pin tends to move away from the clutch rotor; The installation cavity is communicated with the first end of the accommodating groove; After one end of the clutch pin close to the clutch rotor passes through the installation cavity, it can be inserted into the clutch rotor to achieve the linkage rotation of the clutch rotor and the handle joint.

4. The clutch mechanism of a door lock according to claim 3, characterized in that: A rotation station is recessed in the middle of the handle joint, and the clutch rotor is rotatably arranged on the rotation station; The rotating station is provided with a through hole for the clutch pin to enter and exit; The clutch rotor is provided with a linkage notch, and the linkage notch and the through hole are both aligned with the clutch pin; The clutch pin passes through the installation cavity and the through hole and then penetrates into the linkage notch to realize the linkage rotation of the clutch rotor and the handle joint.

5. The clutch mechanism of a door lock according to claim 1, characterized in that: The handle joint is provided with a reversing installation mechanism and two symmetrically arranged anti-knock structure groups, each of the anti-knock structure groups is suitable for one installation direction of the handle joint; Each of the anti-knock structure groups includes: the clutch pin, the elastic pressing member, the guide limiting structure, and a locking block movably arranged in the guide limiting structure.

6. The clutch mechanism of a door lock according to claim 1, characterized in that: The elastic pressing member is a spring, and two ends of the spring are respectively connected to the clutch pin and the handle joint in a mutually abutting manner.

7. The clutch mechanism of a door lock according to claim 1, characterized in that: The invention also includes a driving unit for driving the clutch pin to move to a position where the handle joint can be linked to the clutch rotor.

8. A smart lock comprising a door lock panel mechanism and a lock body, wherein the door lock panel mechanism includes a control operation structure, characterized in that: The door lock panel mechanism is provided with a clutch mechanism of the door lock according to any one of claims 1 to 7; The control operation structure is connected to the handle joint; The clutch rotor is linked to the lock body through a connecting piece.

9. A door, comprising a door body, characterized in that: It also includes the smart lock according to claim 8; the smart lock is installed on the door body.

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