CN117287093A - lock device - Google Patents

Abstract

The invention relates to a lock device which is applicable to a first object and a second object which can move relatively. The driving module is used for driving the sliding block to be in an unlocking position or an unlocking position; the lock tongue can move relative to the sliding block; the power module is used for providing electric energy to the driving module; when the second object is in a folding position relative to the first object, the driving module can drive the sliding block to be in the locking position; when the driving module cannot be driven by the power module and the sliding block is at the locking position, the second object can be moved to an opening direction to drive the lock tongue so as to link the sliding block to move from the locking position to the unlocking position.

Description

Lock device

Technical Field

The present invention relates to locks, and more particularly to a lock device for two objects that are movable relative to each other.

Background

Generally, the track assembly may be used in a rack system of a home, office, or electronic device. The sliding rail assembly comprises a first rail and a second rail which are respectively arranged on a first object and a second object, such as a cabinet body and a drawer, so that the drawer can be opened or closed relative to the first rail and/or the cabinet body through the second rail. Depending on the needs, it is sometimes undesirable for the market or user to have the second rail (second object) arbitrarily operated from a predetermined position relative to the first rail (first object) to leave the predetermined position.

For example, US 8,328,299B2 discloses a drawer slide and lock mechanism. The lock mechanism is an electronic lock. As can be seen from fig. 1 of the scheme, the drawer slide includes an outer rail and an inner rail. The inner rail can be in a folding position relative to the outer rail. Wherein the rear end of the inner rail is provided with a pin. In another aspect, a lock mechanism includes a latch receiver, a lever arm, and a motor. As shown in fig. 1 and 2, the latch receiver may be in a first position, and in the first position, the latch receiver is in a state of capturing a pin of the inner rail, and the pin of the inner rail pushes the latch receiver to rotate from the first position to the second position through the folding action of the inner rail, so as to lock the inner rail. As shown in FIG. 11 of the drawings, once the motor receives an electronic control signal, the motor drives the lever arm to rotate, so that the top of the lever arm can be linked and push the latch receiver to rotate from the second position to the first position to release the pin of the inner rail. According to this arrangement, the inner rail can be released relative to the outer rail, i.e. the inner rail can be moved away from the retracted position relative to the outer rail.

It is worth mentioning that this patent discloses a manual release that extends or is exposed out of a housing of the lock mechanism; when the power supply to the motor is lost or the electronic parts are damaged, the manual release piece is pulled by a user to drive the lever arm to an unlocking position, so that the latch receiving piece can return to the first position to unlock the pin of the inner rail, and the inner rail can leave the folding position.

As disclosed in US patent publication No. US2019/0063113A1, an electronic lock is disclosed in which a motor controls a lock bolt to lock or unlock the lock bolt, and a pull cord manual unlocking mechanism assembly is additionally provided for a user to pull to drive the lock bolt from locking to unlocking.

Also disclosed are electronic locks such as CN112746774a and TWI 702017. When the power is off or no power is applied, an external mechanism is needed to apply force to the unlocking position to achieve manual unlocking, and the external mechanism can be a nylon rope or a group of linkage mechanisms, and is placed on a certain appearance surface of the cabinet body and hidden by using designs such as ornamental plates, so that the problems of use and attractive appearance are caused.

Depending on market demands or different ways of operating the structure, it is sometimes undesirable to implement the lock function in the manner of the above-mentioned patent, and as mentioned above, this type of electronic lock requires another set of mechanical structure means (e.g. the above-mentioned manual release) for manual unlocking when the power supply is lost or the electronic parts are damaged, and the unlocking mechanism is activated by an external force. Therefore, how to develop a product with different types becomes a considerable issue.

Disclosure of Invention

The present invention is directed to a lock device that can be applied to a first object and a second object that are relatively movable.

According to one aspect of the present invention, a lock device for a first object and a second object that are movable relative to each other includes a slider, a driving module, a latch, and a power module. The driving module is used for driving the sliding block to be at one of a locking position and an unlocking position; the bolt is movably arranged to the slider; the power module is used for providing electric energy to the driving module; when the second object is in a folding position relative to the first object, the driving module can drive the sliding block to be in the locking position, so that the lock tongue can block the second object; when the driving module cannot be driven by the power module and the sliding block is at the locking position, the second object can drive the lock tongue to move from an initial state to a non-initial state through the displacement of the second object to a preset position in an opening direction, so as to link the sliding block to move from the locking position to the unlocking position.

Preferably, the driving module comprises a magnet; when the slider is in the unlocked position, the slider can be held in the unlocked position by the magnet.

Preferably, the lock device further comprises an elastic member; when the sliding block is kept at the unlocking position and the second object is displaced from the preset position to a folding direction, the lock tongue can return to the initial state from the non-initial state in response to the elastic force of the elastic piece, so as to allow the second object to be displaced to an extending position in the opening direction.

Preferably, the lock device further comprises a first sensor for sensing whether the second object is in the retracted position.

Preferably, the lock device further comprises a second sensor for sensing whether the slider is in the locked position.

Preferably, the lock device further comprises a base for mounting to one of the first object and the second object, the slider, the drive module, the first sensor and the second sensor being arranged on the base.

According to another aspect of the present invention, a lock device is adapted for a first object and a second object that are relatively linearly movable, and includes a slider, a driving module, a latch, and a power module. The driving module is used for driving the sliding block to be at one of a locking position and an unlocking position; the lock tongue can move relative to the sliding block; the power module is used for providing electric energy to the driving module; when the second object is at a folding position relative to the first object, the driving module can drive the sliding block to be at the locking position; when the driving module cannot be driven by the power module and the sliding block is at the locking position, the second object can be displaced towards an opening direction to drive the lock tongue to rotate by an angle so as to link the sliding block to move from the locking position to the unlocking position.

Preferably, the driving module comprises a magnet; when the slider is in the unlocked position, the slider can be held in the unlocked position by the magnet.

Preferably, the lock device further comprises an elastic member; when the sliding block is kept at the unlocking position and the second object is displaced towards a retracting direction, the lock tongue can return to an initial state in response to the elastic force of the elastic piece, so as to allow the second object to be displaced towards the opening direction to an extending position.

Preferably, the latch is pivotally connected to the slider.

Preferably, the lock device further comprises a base for mounting to one of the first object and the second object, the slider and the drive module being arranged on the base.

Preferably, the lock device further comprises a first sensor for sensing whether the second object is in the retracted position.

Preferably, the lock device further comprises a second sensor for sensing whether the slider is in the locked position.

According to yet another aspect of the present invention, a lock device adapted for use with a first object and a second object that are movable relative to each other, the lock device being communicatively coupled to a communication device, the lock device comprising a slider, a drive module, a locking bolt, and a power module. The driving module is used for controlling the sliding block to move; the lock tongue can move relative to the sliding block; the power module is used for providing electric energy to the driving module; when the second object is at a folding position relative to the first object and the lock device receives a locking signal of the communication device, the driving module is used for driving the sliding block to be at a locking position so that the lock tongue can block the second object; when the lock device receives an unlocking signal of the communication device, the driving module is used for driving the sliding block to be at an unlocking position, so that the lock tongue cannot block the second object; when the driving module cannot be driven by the power module and the sliding block is at the locking position, the second object can drive the lock tongue to move from an initial state to a non-initial state through the displacement of the second object to a preset position in an opening direction, so as to link the sliding block to move from the locking position to the unlocking position.

Preferably, the driving module comprises a magnet; when the slider is in the unlocked position, the slider can be held in the unlocked position by the magnet.

Preferably, the lock device further comprises an elastic member; when the sliding block is kept at the unlocking position and the second object is displaced from the preset position to a folding direction, the lock tongue can return to the initial state from the non-initial state in response to the elastic force of the elastic piece, so as to allow the second object to be displaced to an extending position in the opening direction.

Preferably, the lock device further comprises a first sensor for sensing whether the second object is in the retracted position.

Preferably, the lock device further comprises a second sensor for sensing whether the slider is in the locked position.

Preferably, the lock device further comprises a base for mounting to the first object, the slider, the drive module, the first sensor and the second sensor being arranged on the base.

Preferably, the base is detachably mounted to the first object.

Drawings

For further explanation and to demonstrate the above noted objects, structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings, wherein:

fig. 1 shows a schematic view of a lock device according to an embodiment of the present invention applied to a piece of furniture.

Fig. 2 shows a schematic view of a lock device according to an embodiment of the present invention applied to the furniture.

FIG. 3 is a schematic view showing a combination of a first object and a second object which are relatively movable and are applied to furniture by the lock device according to an embodiment of the present invention.

Fig. 4 shows an exploded view of a lock device according to an embodiment of the present invention applied to a first article and a second article of furniture that are relatively movable.

Fig. 5 shows a combined schematic view of a lock device according to an embodiment of the invention.

Fig. 6 shows a schematic view of a driving module of the lock device according to an embodiment of the invention.

FIG. 7 is a block diagram illustrating a lock device and a communication device that are communicatively coupled to each other according to an embodiment of the present invention.

FIG. 8 is a schematic diagram showing the locking of the second object with the first object of the furniture by the matching of the locking device in a locked state with an accessory according to an embodiment of the present invention.

FIG. 9 is a schematic diagram showing the second object of the furniture being unlocked from the first object by the lock device in an unlocked state according to an embodiment of the present invention.

Fig. 10 is a schematic view showing a first operation flow of the lock device according to the embodiment of the present invention applied to the furniture.

Fig. 11 is a schematic view showing a second operation flow of the lock device according to the embodiment of the present invention applied to the furniture.

FIG. 12 is a schematic diagram showing a first operation of a user manually unlocking the lock device according to an embodiment of the invention.

FIG. 13 is a diagram showing a second operation of the lock device manually unlocked by a user according to an embodiment of the present invention.

FIG. 14 is a schematic view showing a third operation of the lock device manually unlocked by a user according to an embodiment of the invention.

Detailed Description

As shown in fig. 1 and 2, a lock device 20, such as a smart lock device or an electronic lock, is suitable for a piece of furniture 22, and the piece of furniture 22 includes a first object 24 and a second object 26 that are movable relative to each other.

Preferably, a third object 28 is movably mounted between the first object 24 and the second object 26. Here, the first object 24 is taken as a first rail (e.g. a fixed rail), the second object 26 is taken as a second rail (e.g. a movable rail), and the third object 28 is taken as a third rail (e.g. a middle rail), but the implementation is not limited thereto. The first object 24, the second object 26 and the third object 28 are movable longitudinally or linearly with respect to each other and together form a bottom-mounted slide assembly 29.

Preferably, the first item 24 is arranged (e.g., secured) on a cabinet 30, and the second item 26 is configured to carry a drawer 32. Wherein the drawer 32 is in an extended position E relative to the first object 24 (or cabinet 30) through the second object 26.

Preferably, the first object 24 includes an extension 34 and the second object 26 includes a carrier 36.

As shown in fig. 3 and 4, the second object 26 can be at a folding position R relative to the first object 24. In the retracted position R, the position of the carrying portion 36 of the second object 26 substantially corresponds to the extending portion 34 of the first object 24 (as shown in fig. 3).

Preferably, the lock device 20 is mounted to the first article 24. Specifically, the lock device 20 has a mounting feature 40, and a side wall 35 of the extension 34 of the first object 24 has a mounting structure 42 that is detachably mounted to the mounting feature 40, where one of the mounting feature 40 and the mounting structure 42 is a protrusion, and the other of the mounting feature 40 and the mounting structure 42 is a slot, for example, but not limited to, implementation.

Preferably, the lock device 20 has a housing 44 that can be used to cover most of the associated components of the lock device 20 for protection.

Preferably, the furniture 22 further includes a fitting 46, and the fitting 46 is detachably mounted to the carrier 36 of the second object 26. For example, the fitting 46 has a connection feature 48, and the carrier portion 36 of the second object 26 has a connection structure 50 that can be mutually mounted with the connection feature 48, where one of the connection feature 48 and the connection structure 50 is a slot, and the other of the connection feature 48 and the connection structure 50 is a protrusion, for example, but not limited to, a practical implementation. Since the fitting 46 is mounted to the second object 26, the fitting 46 and the second object 26 may be considered as one piece.

Preferably, the fitting 46 includes a first predetermined portion 52, a second predetermined portion 54, and a space 56 defined between the first predetermined portion 52 and the second predetermined portion 54.

As shown in fig. 5 and 6, the lock device 20 includes a slider 58, a driving module 60, and a latch 62.

Preferably, the lock device 20 further includes a base 66, an elastic member 68, a first sensor 70, a second sensor 72, a fixing base 74 and a control circuit board 76.

The lock device 20 is configured to be mountable to the first item 24 through the base 66 with the mounting feature 40; the slider 58, the driving module 60, the latch 62, the elastic member 68, the first sensor 70, the second sensor 72, the fixing base 74 and the control circuit board 76 are all disposed on the base 66. The mounting block 74 is disposed vertically or vertically relative to the base 66, and at least a portion of the control circuit board 76 is disposed to the mounting block 74.

The driving module 60 is electrically connected to the control circuit board 76. Here, the driving module 60 is exemplified as being electrically connected to the control circuit board 76 through a first electronic wire 77a and a second electronic wire 77b, but the implementation is not limited thereto.

The drive module 60 includes a magnet 78 (e.g., a permanent magnet, but is not limited in implementation), preferably the drive module 60 is an electromagnet module, and the drive module 60 further includes a housing 80, a metal rod 82 (e.g., a core, but is not limited in implementation), a coil 84, and a spring 86. Wherein the magnet 78 and the coil 84 are arranged within the housing 80; the metal rod 82 is energized through the coil 84 to be telescopically movable with respect to the housing 80, wherein the spring 86 can provide an elastic force to the metal rod 82, and the spring 86 is disposed on the metal rod 82 as an example.

The slider 58 is coupled (e.g., affixed, without limitation) to the metal rod 82. The tongue 62 is movable relative to the slider 58, where the tongue 62 is movably arranged to the slider 58. For example, the latch bolt 62 is pivotally coupled to the slider 58 via a shaft 88, but is not limited in implementation.

Preferably, the elastic member 68 can provide elastic force to the latch bolt 62; the first sensor 70 and the second sensor 72 can be electrically connected to the control circuit board 76.

As shown in fig. 7, the lock device 20 includes a power module 90, and the power module 90 can be used to provide an electrical energy 92 to the driving module 60. Preferably, the power module 90 is electrically connected to the control circuit board 76. A communication device 94 may be communicatively coupled to the lock device 20 via wireless or wired means for controlling the drive module 60. The communication device 94 is, for example, a mobile phone, a tablet computer or a smart watch, but is not limited to practice.

As shown in fig. 8 and 9, the fitting 46 may be mounted to the second item 26 (fig. 8 and 9 only show that the fitting 46 represents the second item 26 or drawer 32), and the lock device 20 may be mounted to the first item 24 (fig. 8 and 9 only show that the lock device 20 represents the first item 24 or cabinet 30).

The driving module 60 is used for driving the slider 58. Further, the driving module 60 is configured to drive the slider 58 to be at one of a locked position X1 (fig. 8) and an unlocked position X2 (fig. 9). Here, since the slide block 58 is connected to the metal rod 82, when the power module 90 supplies the power 92 to the driving module 60, the coil 84 is powered by different power signals (e.g. reverse power or forward power), so that the metal rod 82 is movable to drive the slide block 58 to the locking position X1 (fig. 8) or the unlocking position X2 (fig. 9).

Preferably, when the metal rod 82 and the slider 58 are located at the locking position X1, the spring 86 can provide elastic force to the metal rod 82, so that the metal rod 82 and the slider 58 are kept at the locking position X1 (fig. 8); alternatively, when the metal bar 82 and the slider 58 are located at the unlocking position X2, the magnetic force of the magnet 78 can be used to attract the metal bar 82, so that the metal bar 82 and the slider 58 are kept at the unlocking position X2 (see fig. 9).

Preferably, the direction (transverse direction) in which the metal rod 82 and the slider 58 move is perpendicular to the direction (longitudinal direction, e.g., direction D1 or D2) in which the object (e.g., second object 26) moves.

When the second object 26 (the second object 26 is shown by the fitting 46) is at the retracted position R relative to the first object 24 (the first object 24 is shown by the locking device 20), the driving module 60 can drive the slider 58 to a first lateral direction T1 at the locking position X1, so that the latch 62 can block the second object 26 (fig. 8). For example, when the slider 58 is in the locking position X1, the locking tongue 62 may partially extend into the space 56 of the fitting 46, such that the locking tongue 62 may block the first predetermined portion 52 of the fitting 46 to prevent the second object 26 from being displaced from the retracted position R to an opening direction D1 to the extended position E relative to the first object 24.

Alternatively, the driving module 60 can drive the slider 58 in the unlocking position X2 in a second lateral direction T2 opposite to the first lateral direction T1, so that the latch tongue 62 cannot block the second object 26 (see fig. 9). For example, when the slider 58 is in the unlocking position X2, the latch 62 does not extend into the space 56 of the fitting 46, such that the latch 62 cannot block the first predetermined portion 52 of the fitting 46, so as to allow the second object 26 to be displaced from the retracted position R to the opening direction D1, for example, to the extended position E, relative to the first object 24. It should be noted that the second object 26 may also return to the retracted position R from the extended position E to a retracted direction D2 relative to the first object 24.

In addition, the first sensor 70 is configured to sense whether the second object 26 (the second object 26 or the drawer 32 is represented by the accessory 46) is at the retracted position R. Specifically, the first sensor 70 may be configured to generate a first signal or a second signal, for example, when the second object 26 is at the retracted position R, the second object 26 (the second object 26 or the drawer 32 is shown by the accessory 46) may press a first elastic sensing portion 70a of the first sensor 70, so that the first sensor 70 generates the second signal, which indicates that the second object 26 (or the drawer 32) is at the retracted position R (as shown in fig. 8); alternatively, the second object 26 (the fitting 46 represents the second object 26 or the drawer 32) does not press against the first elastic sensing portion 70a of the first sensor 70, and the first sensor 70 generates the first signal to indicate that the second object 26 (or the drawer 32) is not at the retracted position R at this time, for example, the second object 26 or the drawer 32 is in an opened state or an extended state (as shown in fig. 9).

The second sensor 72 is configured to sense whether the slider 58 is in the locked position X1. Specifically, the second sensor 72 may be configured to generate a third signal or a fourth signal, for example, when the slider 58 is at the locking position X1, the slider 58 does not press a second elastic sensing portion 72a of the second sensor 72, so that the second sensor 72 generates the fourth signal, which indicates that the slider 58 is at the locking position X1 (fig. 8); alternatively, the slider 58 presses against the second elastic sensing portion 72a of the second sensor 72, and the second sensor 72 generates the third signal to indicate that the slider 58 is at the unlock position X2 (see fig. 9).

Fig. 10 is a first operation flow diagram of the lock device 20 according to an embodiment of the invention, which includes the following steps:

step S110: the communication device sets the drawer state as locked.

In step S110, the communication device 94 is installed with an Application (App), and the user can send a locking signal through the App of the communication device 94.

Step S120: detecting whether the first sensor is the second signal.

In step S120, as shown in fig. 8, the lock device 20 can detect whether the first sensor 70 is in the state of the second signal. For example, the second object 26 (or the drawer 32 is shown as the accessory 46) can press the first elastic sensing portion 70a of the first sensor 70, so that the first sensor 70 generates the second signal to indicate that the second object 26 (or the drawer 32) is at the retracted position R relative to the first object 24 (or the cabinet 30).

If yes, go to step S130: the driving module is connected with a first power signal, and the sliding block is locked at the locking position. In this step, when the second object 26 is at the retracted position R relative to the first object 24 and the locking device 20 receives the locking signal of the communication device 94, the driving module 60 is used to drive the slider 58 to be at the locking position X1 (as shown in fig. 8), so that the latch 62 can block the second object 26 (the second object 26 or the drawer 32 is represented by the accessory 46). Specifically, the metal rod 82 of the driving module 60 can be driven according to the first power signal (e.g. reverse power, but not limited to) provided by the power module 90 on the control circuit board 76 by the coil 84, so that the slider 58 can be located at the locking position X1 (as shown in fig. 8) in response to the movement of the metal rod 82, and the latch bolt 62 can block the second object 26 in an initial state S1.

If not, go to step S140: the communication device alerts that the drawer is not fully closed. In this step, if the first sensor 70 does not generate the second signal, the communication device 94 may send out an alarm sound and/or an electronic message through the application program for the user to know that the second object 26 (drawer 32) is not in the retracted position R.

Further, after step S130, step S150 may be performed: detecting whether the second sensor is the fourth signal. In this step S150, as shown in fig. 8, the lock device 20 can detect whether the second sensor 72 is in the state of the fourth signal. For example, the second elastic sensing portion 72a of the second sensor 72 is not pressed by the slider 58, so that the second sensor 72 generates the fourth signal to indicate that the slider 58 is at the locking position X1.

If yes, go to step S160: the drawer cannot be opened. In step S160, if the second sensor 72 generates the fourth signal and the slider 58 is at the locking position X1, the second object 26 (drawer 32) cannot be displaced from the closing position R toward the opening direction D1 (as shown in fig. 8) relative to the first object 24 (cabinet 30).

If not, go to step S170: the communication device alerts the system to the error message. In step S170, if the second sensor 72 does not generate the fourth signal, which indicates that the slider 58 is not at the locked position X1, the communication device 94 may send out an alarm sound and/or an electronic message to the user through the application program for informing the user of the system error message that the slider 58 is not at the locked position X1.

Fig. 11 is a second operation flow diagram of the lock device 20 according to an embodiment of the invention, which includes the following steps:

step S210: the communication device sets the drawer state to be unlocked.

In step S210, the user can send an unlock signal through the application program of the communication device 94.

Step S220: the driving module is connected with a second power signal, and the sliding block is at the unlocking position. In this step, when the lock device 20 receives the unlocking signal of the communication device 94, the driving module 60 is used to drive the slider 58 to be at the unlocking position X2, so that the lock tongue 62 cannot block the second object 26 (the second object 26 or the drawer 32 is represented by the accessory 46). Specifically, the metal rod 82 of the driving module 60 can be driven according to the second power signal (e.g. forward power, but not limited to) provided by the power module 90 on the control circuit board 76 by the coil 84, so that the slide 58 can be in the unlocking position X2 (as shown in fig. 9) in response to the movement of the metal rod 82, and the latch bolt 62 cannot block the second object 26 in the initial state S1.

Step S230: detecting whether the second sensor is the third signal. In step S230, as shown in fig. 9, the lock device 20 can detect whether the second sensor 72 is in the state of the third signal. For example, the second elastic sensing portion 72a of the second sensor 72 is pressed by the slider 58, so that the second sensor 72 generates the third signal to indicate that the slider 58 is at the unlock position X2.

If yes, go to step S240: the drawer may be opened. In step S240, if the second sensor 72 generates the third signal and the slider 58 is at the unlock position X2, the second object 26 (drawer 32) can be displaced from the closing position R toward the opening direction D1 (as shown in fig. 9) relative to the first object 24 (cabinet 30).

If not, go to step S250: the communication device alerts the system to the error message. In step S250, if the second sensor 72 does not generate the third signal, indicating that the slider 58 is not at the unlock position X2, the communication device 94 may send out an alarm sound and/or an electronic message to the user through the application program to inform the user that the slider 58 is not at the unlock position X2.

As shown in fig. 12 and 13, when the driving module 60 cannot be driven by the power module 90, for example, the power module 90 is damaged, dead, or insufficient power to drive the driving module 60, and the slide block 58 is at the locking position X1, the second object 26 (only the fitting 46 is used to indicate the second object 26 or the drawer 32) is displaced from the closing position R (as shown in fig. 12) toward the opening direction D1, for example, to a predetermined position Y (as shown in fig. 13), and the second object 26 can drive the lock block 62 to move from the initial state S1 to a non-initial state S2, for example, the first predetermined portion 52 of the fitting 46 contacts the lock block 62, so that the lock block 62 rotates an angle from the initial state S1 to the non-initial state S2 in a predetermined direction K, so as to link (for example, push) the slide block 58 (and the metal rod 82) to move from the locking position X1 (as shown in fig. 12) toward the second lateral direction T2 to the unlocking position X2 (as shown in fig. 13). When the latch bolt 62 is in the non-initial state S2, the elastic member 68 is in a state of accumulating an elastic force (see fig. 13).

Preferably, the space 56 of the fitting 46 has an abutting portion 96 (such as a groove, but not limited to) adjacent to the first predetermined portion 52, and the abutting portion 96 can be used to provide a detent during the process of pivoting the latch bolt 62 from the initial state S1 to the non-initial state S2, so as to facilitate the latch bolt 62 to move the slider 58 and the metal rod 82 from the locking position X1 (fig. 12) to the unlocking position X2 (fig. 13) and facilitate the slider 58 and the metal rod 82 to move to the second transverse direction T2, so as to overcome the elastic force of the spring 86.

Preferably, when the slider 58 is in the unlocked position X2, the slider 58 can be held in the unlocked position X2 by the magnet 78 of the drive module 60. For example, the slider 58 can be held in the unlock position X2 by attracting the metal rod 82 through the magnetic force of the magnet 78. Because the latch 62 pivots to abut against a guide 98 (such as a slope, but not limited to) of the slider 58, the force of the second object 26 (only the fitting 46 indicates the second object 26 or the drawer 32) moving toward the opening direction D1 is converted to act on the slider 58 to be limited (as shown in fig. 13), so that the second object 26 (only the fitting 46 indicates the second object 26 or the drawer 32) cannot be opened further toward the first direction D1.

As shown in fig. 13 and 14, since the second object 26 (only the fitting 46 represents the second object 26 or the drawer 32) cannot be opened in the first direction D1 (fig. 13), the second object 26 (only the fitting 46 represents the second object 26 or the drawer 32) can only be displaced in the folding direction D2 (fig. 14). Further, when the slider 58 is kept at the unlocking position X2 and the second object 26 is displaced from the predetermined position Y (fig. 13) toward the folding direction D2 (fig. 14), the latch 62 is able to return to the initial state S1 from the non-initial state S2 in response to the elastic force released by the elastic member 68, and the latch 62 does not block the first predetermined portion 52 (fig. 14) of the fitting 46, so as to allow the second object 26 (only the second object 26 or the drawer 32 is represented by the fitting 46) to be displaced toward the opening direction D1 to the extending position E.

From the above description, it can be seen that the enhancement effect and advantage of the present invention are: when the power supply of the lock device 20 is lost or the related electronic parts are damaged, the user only needs to pull the second object 26 (the drawer 32) to the opening direction D1 by a distance by hand without adding a manual unlocking mechanism assembly, so that the slide block 58 can be unlocked manually from the locking position X1 to the unlocking position X2, and the use is convenient.

While the invention has been described with reference to the present specific embodiments, it will be appreciated by those skilled in the art that the above embodiments are for illustration only, and that various equivalent changes and modifications may be made without departing from the spirit of the invention, and therefore, all changes and modifications to the above embodiments are intended to be within the scope of the claims of the present application as long as they come within the true spirit of the invention.

Claims (20)

1. A lock device for a first object and a second object that are movable relative to each other, the lock device comprising a drive module and a power module, characterized in that:

a slide block;

the driving module is used for driving the sliding block to be in one of a locking position and an unlocking position;

a lock tongue movably arranged to the slider; and

the power module is used for providing electric energy to the driving module;

when the second object is in a folding position relative to the first object, the driving module can drive the sliding block to be in the locking position, so that the lock tongue can block the second object;

when the driving module cannot be driven by the power module and the sliding block is at the locking position, the second object can drive the lock tongue to move from an initial state to a non-initial state through the displacement of the second object to a preset position in an opening direction, so as to link the sliding block to move from the locking position to the unlocking position.

2. The lock device of claim 1, wherein the drive module comprises a magnet; when the slider is in the unlocked position, the slider can be held in the unlocked position by the magnet.

3. The lock apparatus of claim 2, further comprising an elastic member; when the sliding block is kept at the unlocking position and the second object is displaced from the preset position to a folding direction, the lock tongue can return to the initial state from the non-initial state in response to the elastic force of the elastic piece, so as to allow the second object to be displaced to an extending position in the opening direction.

4. The lock apparatus of claim 1, further comprising a first sensor for sensing whether the second object is in the retracted position.

5. The lock apparatus of claim 4, further comprising a second sensor for sensing whether the slider is in the locked position.

6. The lock apparatus of claim 5, further comprising a base for mounting to one of the first object and the second object, the slider, the drive module, the first sensor, and the second sensor being disposed on the base.

7. A lock device adapted for relatively linearly moving a first object and a second object, the lock device comprising a drive module and a power module, characterized in that:

a slide block;

the driving module is used for driving the sliding block to be in one of a locking position and an unlocking position;

a lock tongue can move relative to the slide block; and

the power module is used for providing electric energy to the driving module;

when the second object is at a folding position relative to the first object, the driving module can drive the sliding block to be at the locking position;

when the driving module cannot be driven by the power module and the sliding block is at the locking position, the second object can be displaced towards an opening direction to drive the lock tongue to rotate by an angle so as to link the sliding block to move from the locking position to the unlocking position.

8. The lock apparatus of claim 7, wherein the drive module comprises a magnet; when the slider is in the unlocked position, the slider can be held in the unlocked position by the magnet.

9. The lock apparatus of claim 8, further comprising an elastic member; when the sliding block is kept at the unlocking position and the second object is displaced towards a retracting direction, the lock tongue can return to an initial state in response to the elastic force of the elastic piece, so as to allow the second object to be displaced towards the opening direction to an extending position.

10. The lock device of claim 7, wherein the locking bolt is pivotally connected to the slider.

11. The lock apparatus of claim 7, further comprising a base for mounting to one of the first object and the second object, the slider and the drive module being disposed on the base.

12. The lock apparatus of claim 7, further comprising a first sensor for sensing whether the second object is in the retracted position.

13. The lock apparatus of claim 7, further comprising a second sensor for sensing whether the slider is in the locked position.

14. A lock device for a first object and a second object which are movable relative to each other, the lock device being communicably connected to a communication device, the lock device comprising a drive module and a power module, characterized in that:

a slide block;

the driving module is used for driving the sliding block;

a lock tongue can move relative to the slide block; and

the power module is used for providing electric energy to the driving module;

when the second object is at a folding position relative to the first object and the lock device receives a locking signal of the communication device, the driving module is used for driving the sliding block to be at a locking position so that the lock tongue can block the second object;

when the lock device receives an unlocking signal of the communication device, the driving module is used for driving the sliding block to be at an unlocking position, so that the lock tongue cannot block the second object;

when the driving module cannot be driven by the power module and the sliding block is at the locking position, the second object can drive the lock tongue to move from an initial state to a non-initial state through the displacement of the second object to a preset position in an opening direction, so as to link the sliding block to move from the locking position to the unlocking position.

15. The lock apparatus of claim 14, wherein the drive module comprises a magnet; when the slider is in the unlocked position, the slider can be held in the unlocked position by the magnet.

16. The lock apparatus of claim 15, further comprising an elastic member; when the sliding block is kept at the unlocking position and the second object is displaced from the preset position to a folding direction, the lock tongue can return to the initial state from the non-initial state in response to the elastic force of the elastic piece, so as to allow the second object to be displaced to an extending position in the opening direction.

17. The lock apparatus of claim 14, further comprising a first sensor for sensing whether the second object is in the retracted position.

18. The lock apparatus of claim 17, further comprising a second sensor for sensing whether the slider is in the locked position.

19. The lock apparatus of claim 18, further comprising a base for mounting to the first article, the slider, the drive module, the first sensor, and the second sensor being disposed on the base.

20. The lock apparatus of claim 19 wherein the base is removably mounted to the first article.