A central locking system with hook unlocking and retraction

Abstract

The present application relates to the technical field of luggage lock, in particular to a central control lock with retractable lock hooks, comprising a long strip-shaped lock box, two groups of lock hooks slidingly installed at both ends of the lock box, the lock hooks passing through the lock box and engaging with corresponding lock buckles, a sliding transmission rod installed in the lock box, a traction seat connected to the end of the transmission rod, the traction seat being provided with a guide column; the lock hook comprises a hook part for hooking the lock buckle and an inclined guide hole, the guide column is embedded in the guide hole, and a directional guide structure is arranged between the lock hook and the lock box; when unlocking, the transmission rod drives the traction seat and the lock hook to slide, the lock hook slides in the same direction as the traction seat under the constraint of the directional guide structure to release the clamping of the lock buckle, then the directional guide structure is separated, the lock hook is retracted into the lock box under the cooperation of the guide column and the guide hole, the lock hook does not obviously protrude from the lock box, the overall appearance is enhanced, the lock hook is prevented from being bumped after the box is opened, and the user experience is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of luggage lock technology, specifically to a central locking system with a lock hook that retracts upon unlocking. Background Technology

[0002] As people travel for leisure and business, various types of bags, such as travel bags, handbags, portable bags, and briefcases, play an increasingly important role in people's lives because they carry many valuables or documents; therefore, their safety and convenience have also received widespread attention.

[0003] For enhanced security, the traditional approach was to install two independent buckles at each end of the bag. Later, a central locking system, also known as a linkage lock, emerged. This system uses a key combination mechanism and an operating element in the center to simultaneously control the two locking hooks, eliminating the need for separate operation of each set of hooks and offering greater convenience.

[0004] Central locking systems use a central operating mechanism (button / push lever) to control the sliding of a transmission rod, thus unlocking the lock. For combination locks, after entering the correct combination, external force actuates the operating mechanism, causing the transmission rod to slide and unlock. For key locks, the lock cylinder typically rotates, which in turn moves a lever at the bottom, driving the transmission rod to unlock.

[0005] In some existing technologies, the locking hook rotates within the lock case, while in others it extends beyond the lock case, inserting into the clasp and sliding laterally to lock in place, with the clasp then inseparable from the lock case. However, this type of locking hook extending beyond the lock case affects the appearance of the bag, and after opening the bag, the hook protruding from the clasp is prone to bumps and knocks, impacting the user experience.

[0006] Furthermore, the lock body in the current central locking system is a single, integrated structure, embedded entirely within the lock housing. Replacing it with a different type of lock body requires replacing the entire unit, necessitating significant adjustments to the production line and compromising flexibility. Additionally, the existing button and push-operated mechanisms require further modification to better meet user needs. Summary of the Invention

[0007] In view of the above-mentioned technical problems existing in the prior art, the present invention provides a central locking system with a lock hook that retracts upon unlocking.

[0008] To achieve the above objectives, the present invention provides the following technical solution: A central locking system with a retractable locking hook is provided, comprising an elongated lock box, two sets of locking hooks slidably mounted at both ends of the lock box, the locking hooks extending out of the lock box and engaging corresponding latches, a slidable transmission rod installed inside the lock box, the end of the transmission rod being connected to a traction seat, and the traction seat having a guide post; the locking hooks include hooks for hooking the latches and inclined guide holes, the guide posts being embedded in the guide holes, and a directional guiding structure being provided between the locking hooks and the lock box; When unlocking, the transmission rod drives the traction seat and the lock hook to slide. During the sliding process, the lock hook first slides in the same direction as the traction seat under the constraint of the directional guide structure to release the lock buckle. Then the directional guide structure separates, and the lock hook is driven to retract into the lock box under the cooperation of the guide post and the guide hole. The top of the lock box is connected to a panel and a combination module. The panel is detachably fixed to the lock box. The combination module is detachably installed below the panel, and its multiple number wheels protrude from the panel. The panel is hinged with a rocker arm. After the correct combination module is entered, it releases the constraint on the transmission rod. The rocker arm rotates and tilts up, which can drive the transmission rod to slide.

[0009] Specifically, the directional guiding structure includes a directional groove formed on the open side of the lock hook and a directional rib formed on the lock box. The directional groove and the directional rib are arranged along the sliding direction of the traction seat. When the directional rib is embedded in the directional groove, the lock hook slides in the same direction under the drive of the traction seat. After sliding a preset stroke, the directional groove and the directional rib separate.

[0010] Specifically, the lock box has a first guide surface and a second guide surface arranged perpendicularly. When the directional rib and the directional groove are engaged, the side wall of the lock hook is attached to the first guide surface; when the directional rib and the directional groove are separated, the other side wall of the lock hook is attached to the second guide surface.

[0011] Specifically, when the lock hook is retracted, its hook portion blocks the opening in the lock box through which the lock hook passes.

[0012] Specifically, the lock box is equipped with a sliding connecting plate and a rotating connecting disc. The connecting plate and the connecting disc are linked together, and the connecting disc is linked together with the transmission rod. The rocker knob has an extension, and the connecting plate has an upward-opening connecting groove. The extension is inserted into the downward-facing connecting groove so that when the rocker knob is rotated and tilted up, it drives the connecting plate to slide, thereby driving the connecting disc to rotate and then driving the transmission rod to slide.

[0013] Specifically, the transmission rod includes a first rod and a second rod symmetrically arranged on both sides of the connecting plate. The first rod and the second rod slide synchronously in opposite directions, thereby driving two sets of locking hooks respectively.

[0014] Specifically, the connecting plate and the transmission rod are arranged in parallel, the connecting disc is provided with multiple protrusions, and the connecting plate, the first rod and the second rod are respectively provided with long guide grooves perpendicular to the sliding direction. The protrusions of the connecting disc are embedded in different long guide grooves.

[0015] Specifically, the password module also includes a password base, inner sleeves, and a floating plate. Multiple inner sleeves are coaxially installed in multiple digital wheels, and the floating plate is installed below the digital wheels and cooperates with the inner sleeves. The bottom of the floating plate is equipped with a spring to keep it moving upward. In the locked state, the floating plate abuts against and restricts the sliding of the transmission rod. In the password unlocked state, the floating plate swings upward to release the constraint on the transmission rod.

[0016] Specifically, the oscillating knob has a button, and a spring inside the oscillating knob keeps the button protruding out of the oscillating knob; the button has a limit hook, and the panel has a limit groove. The limit hook and the limit groove cooperate to prevent the oscillating knob from tilting up; external force presses the button to disengage the limit hook from the limit groove, and only then can the oscillating knob tilt up.

[0017] Specifically, the top of the panel is recessed to form a receiving groove, and the oscillating button is installed in the receiving groove. The length of the receiving groove is greater than the length of the oscillating button.

[0018] The beneficial effects of this invention are: The present invention provides a central locking system with a retractable locking hook. Compared with the prior art, after unlocking, the locking hook retracts into the lock box and does not protrude significantly from the lock box, enhancing the overall aesthetics and preventing the locking hook from being bumped after opening the box, thus greatly improving the user experience.

[0019] Furthermore, the panel is connected to the lock box, and the combination module is installed below the panel, allowing for easy replacement of the panel and combination module to meet the needs of different lock models, thus enhancing production flexibility. The lock is operated via a rocker switch, a novel method that satisfies user requirements. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings. However, the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the central locking system in the embodiment, showing the rocker arm tilted up after unlocking.

[0022] Figure 2 This is a schematic diagram of the central locking system in the embodiment, showing the lever in the locked position when pressed down.

[0023] Figure 3 This is a partial three-dimensional view of the central locking system in the embodiment.

[0024] Figure 4 This is an exploded view of part of the central locking system in the embodiment.

[0025] Figure 5 This is a partial structural cross-sectional view of the central locking system in the embodiment.

[0026] Figure 6 This is a schematic diagram showing the interaction of the central locking knob, connecting plate, connecting disc, and transmission rod in the embodiment.

[0027] Figure 7 This is an exploded view of the central locking system in the embodiment.

[0028] Figure 8This is a cross-sectional view of the end structure in the embodiment, where the locking hook is in the state of extending out of the lock box and hooking the lock.

[0029] Figure 9 This is a cross-sectional view of the end structure in the embodiment, wherein the locking hook is in a retracted state after the constraint on the latch has been released.

[0030] Figure label: Lock box 1, directional rib 101, first guide surface 102, second guide surface 103; 2. Locking hook; 201. Hook part; 202. Guide hole; 203. Lock 3; Transmission rod 4, first rod body 401, second rod body 402; Panel 5, limiting groove 501, receiving groove 502; 6. Oscillating button; 601. Extension part; 602. Button; 603. Limit hook; Password module 7, number wheel 701, password base 702, inner sleeve 703, floating plate 704, lock core module 705; Connecting plate 8, connecting groove 801; Connecting plate 9, protruding post 901; Long guide groove 10; Positioning plate 11; Traction seat 12, guide column 1201. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0032] The central locking system in this embodiment, such as Figures 1 to 9As shown, the bag includes a long, narrow lock box 1 and two sets of locking hooks 2 located at both ends of the lock box 1. The lock box 1 and the locking hooks 3 are fixed to the opening and closing sides of the bag, respectively. The locking hooks 2 extend out of the lock box and engage with the corresponding locking hooks 3 to prevent the bag from being opened. Inside the lock box 1, there is a transmission rod 4 that can slide along the length of the lock box 1. The end of the transmission rod 4 is connected to a traction seat 12, and the traction seat 12 is provided with a guide post 1201. The locking hook 2 includes a hook portion 201 for hooking the lock buckle 3 and an inclined guide hole 202. The guide post 1201 is embedded in the guide hole 202. A directional guide structure is provided between the locking hook 2 and the lock box 1. The directional guide structure includes a directional groove 203 formed on the open side of the locking hook 2 and a directional rib 101 formed on the lock box 1. The directional groove 203 and the directional rib 101 are arranged along the sliding direction of the traction seat 12. When the directional rib 101 is embedded in the directional groove 203, the locking hook 2 slides in the same direction under the drive of the traction seat 12 (the relative position of the guide post 1201 and the guide hole 202 remains unchanged). After sliding a preset stroke, the directional groove 203 and the directional rib 101 separate.

[0033] When unlocking, the transmission rod 4 drives the traction seat 12 and the lock hook 2 to slide. During the sliding process, the lock hook 2 first slides in the same direction as the traction seat 12 under the constraint of the directional guide structure to release the lock buckle 3. Then, the directional groove 203 separates from the directional rib 101. With the cooperation of the guide post 1201 and the guide hole 202, the lock hook 2 is driven to retract into the lock box 1 in the vertical direction. In the retracted state of the lock hook 2, its hook part 201 blocks the opening of the lock box 1 through which the lock hook 2 passes.

[0034] In this embodiment, the lock box 1 is formed with a first guide surface 102 and a second guide surface 103 arranged perpendicularly. When the directional rib 101 and the directional groove 203 are engaged, the side wall of the lock hook 2 is in contact with the first guide surface 102, and the lock hook 2 can only slide in the same direction as the traction seat 12. When the directional rib 101 and the directional groove 203 are separated, the other side wall of the lock hook 2 is in contact with the second guide surface 103, and the lock hook 2 slides in a perpendicular direction.

[0035] The top of the lock box 1 is connected to a panel 5 and a combination module 7. The panel 5 is fixed to the lock box 1 with screws. The combination module 7 is installed below the panel 5, with its multiple number wheels 701 extending upwards out of the panel 5. The combination module 7 locks the transmission rod 4 by abutting and restraining it. The panel 5 is hinged with a rocker button 6. After the correct combination is entered into the combination module 7 (each number wheel 701 rotates to the correct combination), the restraint on the transmission rod 4 is released. The rocker button 6 rotates and tilts, which can drive the transmission rod 4 to slide, thereby causing the lock hook 2 to move and release the latch 3.

[0036] In this embodiment, a sliding connecting plate 8 and a rotatable connecting disc 9 are installed inside the lock box 1. The connecting plate 8 and the connecting disc 9 are linked, and the connecting disc 9 is linked to the transmission rod 4. The rocker button 6 has an extension 601, so the whole is roughly L-shaped. The connecting plate 8 has an upward-facing connecting groove 801, and the extension 601 is inserted downward into the connecting groove 801, so that when the rocker button 6 rotates and tilts up, it drives the connecting plate 8 to slide, thereby driving the connecting disc 9 to rotate, and then driving the transmission rod 4 to slide. The connecting groove 801 is open upward, and the extension 601 can be directly inserted / removed, making disassembly and assembly convenient.

[0037] Specifically, the transmission rod 4 includes a first rod 401 and a second rod 402 symmetrically arranged on both sides of the connecting plate 9. The first rod 401 and the second rod 402 slide synchronously in opposite directions, thereby driving two sets of locking hooks 2 respectively. The first rod 401 and the second rod 402 are respectively connected to the traction seat 12, driving the corresponding locking hooks 2. The transmission principle at both ends is the same in this example.

[0038] Specifically, the connecting plate 8 and the transmission rod 4 are arranged in parallel, the connecting disk 9 is provided with multiple protrusions 901, and the connecting plate 8, the first rod body 401 and the second rod body 402 are respectively provided with long guide grooves 10 perpendicular to the sliding direction. The protrusions 901 of the connecting disk 9 are embedded in different long guide grooves 10, thereby realizing the transmission between linear sliding and rotation.

[0039] Specifically, the password module 7 also includes a password base 702, an inner sleeve 703, and a floating plate 704. Multiple inner sleeves 703 are coaxially mounted in multiple digital wheels 701, with some extending axially. The floating plate 704 is installed below the digital wheels 701 and engages with the protruding parts of the inner sleeves 703. A spring is provided at the bottom of the floating plate 704 to maintain its upward movement tendency. In the locked state, the floating plate 704 abuts against and restricts the sliding of the transmission rod 4. In the unlocked state, the floating plate 704 swings upward to release the constraint on the transmission rod 4. The engagement between the floating plate 704 and the inner sleeve 703 is achieved through multiple concave and convex structures, which is existing technology and will not be elaborated upon.

[0040] Specifically, the combination lock 702 is equipped with a lock core module 705. When the correct key is inserted into the lock core module 705 and it rotates, it causes the floating plate 704 to swing downward to release the constraint on the transmission rod 4.

[0041] Specifically, a positioning plate 11 is fixed inside the lock box 1 by screws, and the combination key 702 is detachably snapped onto the positioning plate 11.

[0042] Specifically, the oscillating knob 6 has a button 602, and a spring inside the oscillating knob 6 keeps the button 602 tending to protrude from the oscillating knob 6. The button 602 has a limiting hook 603, and the panel 5 has a limiting groove 501. The limiting hook 603 cooperates with the limiting groove 501 to prevent the oscillating knob 6 from tilting up. When an external force presses the button 602, the limiting hook 603 disengages from the limiting groove 501, and the oscillating knob 6 can then tilt up. The hinge shaft of the oscillating knob 6 has a torsion spring, so the oscillating knob 6 automatically tilts up after the button 602 is pressed.

[0043] Specifically, the top of panel 5 is recessed to form a receiving groove 502, and the oscillating button 6 is installed in the receiving groove 502. The top surface of the oscillating button 6 is flush with the opening of the receiving groove 502, resulting in an overall aesthetically pleasing and compact design. The length of the receiving groove 502 is greater than the length of the oscillating button 6, so that a finger can be inserted into the receiving groove 502 to press the button 602.

[0044] In the description of this invention, it is obvious that the described embodiments are merely a part of the embodiments of the invention, and not all of them. The components of the embodiments of the invention described and illustrated herein can generally be arranged and designed in various different configurations.

[0045] Therefore, the above detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0046] In the description of this invention, it should be noted that the terms "middle," "upper," "lower," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0047] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

Claims

1. A central locking system with a retractable locking hook, characterized in that: The lock includes a long lock box (1), two sets of lock hooks (2) slidably installed at both ends of the lock box (1), the lock hooks (2) protrude out of the lock box and engage with the corresponding lock buckles (3), a sliding transmission rod (4) is installed inside the lock box (1), the end of the transmission rod (4) is connected to a traction seat (12), and the traction seat (12) is provided with a guide post (1201); the lock hook (2) includes a hook part (201) for hooking the lock buckle (3) and an inclined guide hole (202), the guide post (1201) is embedded in the guide hole (202), and a directional guide structure is provided between the lock hook (2) and the lock box (1); When unlocking, the transmission rod (4) drives the traction seat (12) and the lock hook (2) to slide. During the sliding process, the lock hook (2) first slides in the same direction as the traction seat (12) under the constraint of the directional guide structure to release the lock buckle (3). Then the directional guide structure separates, and under the cooperation of the guide post (1201) and the guide hole (202), the lock hook (2) is driven to retract into the lock box (1). The top of the lock box (1) is connected to a panel (5) and a password module (7). The panel (5) is detachably fixed to the lock box (1). The password module (7) is detachably installed below the panel (5) and its multiple number wheels (701) protrude from the panel (5). The panel (5) is hinged with a rocker arm (6). After the password module (7) inputs the correct password to release the constraint on the transmission rod (4), the rocker arm (6) rotates and tilts up, which can drive the transmission rod (4) to slide.

2. A central locking system with a locking hook for unlocking and retracting according to claim 1, characterized in that: directional... The guiding structure includes a directional groove (203) formed on the open side of the lock hook (2) and a directional rib (101) formed on the lock box (1). The directional groove (203) and the directional rib (101) are arranged along the sliding direction of the traction seat (12). When the directional rib (101) is embedded in the directional groove (203), the lock hook (2) slides in the same direction under the drive of the traction seat (12). After sliding a preset stroke, the directional groove (203) and the directional rib (101) separate.

3. A central locking system with a locking hook that retracts upon unlocking, as described in claim 2, characterized in that: The lock box (1) is formed with a first guide surface (102) and a second guide surface (103) arranged perpendicularly. When the directional rib (101) and the directional groove (203) are engaged, the side wall of the lock hook (2) is attached to the first guide surface (102); when the directional rib (101) and the directional groove (203) are separated, the other side wall of the lock hook (2) is attached to the second guide surface (103).

4. A central locking system with a lock hook that retracts upon unlocking, as described in claim 1, characterized in that: When the lock hook (2) is in the retracted state, its hook part (201) blocks the opening of the lock box (1) through which the lock hook (2) passes.

5. A central locking system with a lock hook retraction mechanism according to claim 1, characterized in that: The lock box (1) is equipped with a sliding connecting plate (8) and a rotating connecting disc (9). The connecting plate (8) and the connecting disc (9) are linked together, and the connecting disc (9) is linked together with the transmission rod (4). The rocker (6) is provided with an extension (601), and the connecting plate (8) is provided with an upward-facing connecting groove (801). The extension (601) is embedded downward-facing into the connecting groove (801) so that when the rocker (6) rotates and tilts up, it drives the connecting plate (8) to slide, thereby driving the connecting disc (9) to rotate and then driving the transmission rod (4) to slide.

6. A central locking system with a lock hook retraction mechanism according to claim 5, characterized in that: The transmission rod (4) includes a first rod (401) and a second rod (402) symmetrically arranged on both sides of the connecting plate (9). The first rod (401) and the second rod (402) slide synchronously in opposite directions and drive two sets of locking hooks (2) respectively.

7. A central locking system with a lock hook retraction mechanism according to claim 6, characterized in that: The connecting plate (8) and the transmission rod (4) are arranged in parallel. The connecting plate (9) is provided with multiple protrusions (901). The connecting plate (8), the first rod (401) and the second rod (402) are respectively provided with long guide grooves (10) perpendicular to the sliding direction. The protrusions (901) of the connecting plate (9) are embedded in different long guide grooves (10).

8. A central locking system with a lock hook that retracts upon unlocking, as described in claim 1, characterized in that: The password module (7) also includes a password base (702), an inner sleeve (703) and a floating plate (704). Multiple inner sleeves (703) are coaxially installed in multiple digital wheels (701) in a one-to-one correspondence. The floating plate (704) is installed below the digital wheel (701) and cooperates with the inner sleeve (703). The bottom of the floating plate (704) is provided with a spring to keep it moving upward. In the locked state, the floating plate (704) abuts against and restricts the sliding of the transmission rod (4). In the password unlocked state, the floating plate (704) swings upward to release the constraint on the transmission rod (4).

9. A central locking system with a lock hook that retracts upon unlocking, as described in claim 1, characterized in that: The sway knob is equipped with a button (602), and a spring is provided inside the sway knob (6) to keep the button (602) protruding out of the sway knob; the button (602) is equipped with a limit hook (603), and the panel (5) is equipped with a limit groove (501). The limit hook (603) and the limit groove (501) cooperate to prevent the sway knob (6) from tilting up; when the button (602) is pressed by external force, the limit hook (603) is disengaged from the limit groove (501), and the sway knob (6) can then tilt up.

10. A central locking system with a lock hook retraction mechanism according to claim 9, characterized in that: The top of the panel (5) is recessed to form a receiving groove (502), and the swivel (6) is installed in the receiving groove (502). The length of the receiving groove (502) is greater than the length of the swivel (6).

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