Compact high-safety luggage lock

Abstract

The invention relates to the technical field of locks, in particular to a compact high-safety luggage lock which comprises a lock shell, a lock hook, a lock tongue plate, a button, a password assembly and a lock cylinder, a stop block is arranged in the button and provided with a limiting protrusion, the lock tongue plate is provided with a long-strip-shaped receding hole, and the limiting protrusion is inserted into the receding hole, so that the lock tongue plate can be locked in a locked state. The limiting protrusion locks the spring bolt plate. The stop block is provided with a long-strip-shaped stop groove, the bottom of the lock cylinder is embedded into the stop groove so that the lock cylinder and the stop block can rotate together, and the stop block can move in the length direction of the stop groove relative to the lock cylinder. During password unlocking, the button is pressed by external force to drive the center rod to move, and the center rod drives the spring bolt plate and the stop block to slide for unlocking; when the key is used for unlocking, the stop block is driven to rotate, and the limiting protrusion of the stop block drives the spring bolt plate to slide for unlocking. Compared with the prior art, the luggage lock is compact in structure, the lock tongue plate cannot slide for unlocking even if the luggage lock falls down heavily, and the safety performance of the luggage lock is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of locks, and in particular to a compact and highly secure luggage lock. Background Art

[0002] With the development of social economy, people have more and more opportunities to go out, and the use of luggage is becoming more and more frequent. In order to ensure the privacy and security of luggage, many luggage are equipped with combination locks. For example, in the Chinese patent document entitled "A luggage combination lock" with application number 201320464356.1, the disclosed luggage lock includes a shell, a lock hook opening is opened on the shell, a code wheel, a lock hook, and a lock hook reset device are arranged in the shell, a spring is connected to the rear of the lock hook, the spring retracts the lock hook into the lock hook opening, the lock hook reset device pushes the lock hook out of the lock hook opening, the code wheel can push a positioning block back and forth, the positioning block is used to limit the movement of the lock hook; the lock hook reset device includes a pressing block, a first push rod, and a second push rod, one end of the pressing block is hinged in the shell, the pressing part of the pressing block extends outside the shell, one end of the first push rod is hinged in the shell, and the other end is hinged to the second push rod, the second push rod is used to push the lock hook, and the pressing block is used to press the hinge point of the first push rod and the second push rod.

[0003] For another example, the Chinese patent document with publication number CN207513338U discloses a new type of luggage lock, including a shell and a lock core assembly, a code adjustment assembly and a lock tongue assembly arranged inside the shell, the shell including a panel and a back cover, the panel and the back cover are buckled together to form a accommodating space for accommodating the lock core assembly, the code adjustment assembly and the lock tongue assembly, the code adjustment assembly and the lock tongue assembly are axially parallel and arranged side by side in the accommodating space, the lock core assembly is located at one end of the code adjustment assembly and the lock tongue assembly, the axial direction of the lock core assembly is vertically arranged, and the lock core assembly is against the code adjustment assembly and the lock tongue assembly; when an incorrect password is entered in the code adjustment assembly, the lock core assembly cannot move axially along the code adjustment assembly, and when a correct password is entered in the code adjustment assembly, the lock core assembly can move axially along the code adjustment assembly, thereby driving the lock tongue assembly to move axially along its own axis to unlock, and the rotation of the lock core assembly can drive the lock tongue assembly to move axially along its own axis to unlock.

[0004] For button locks, when the password is unlocked, the button is pressed to push the bolt plate; when the key is unlocked, the lock core is rotated to make the protrusion at the bottom push the bolt plate. Since it is necessary to be able to unlock the lock independently in both password and key modes, the bolt plate needs to have a long slot hole so that it will not be restrained by the other mode when unlocking in one mode. However, due to the space of the long slot hole, this structure makes the bolt plate movable (relying on the spring to position). When the luggage is deliberately dropped or accidentally overturned, it is easy to overcome the spring force and move the bolt plate, thereby unlocking the luggage, which reduces the safety performance of the luggage lock. Furthermore, the internal structure layout of the existing luggage lock is not entirely reasonable, and a large space is required to accommodate the complex structure, making the lock body large. Summary of the invention

[0005] In view of all or part of the above-mentioned technical problems in the prior art, the present invention provides a compact and highly secure luggage lock.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] Provided is a compact high-security luggage lock, comprising a lock shell, a lock hook, a lock tongue plate, a button, a password component and a lock core, wherein the lock shell is provided with a lock hole, and the lock hook is movably installed in the lock shell and corresponds to the lock hole;

[0008] The bolt plate is slidably mounted in the lock housing and is used to drive the lock hook to unlock;

[0009] The button is elastically mounted on the lock housing and partially exposed outside the lock housing, and the lock core is mounted on the button;

[0010] The password assembly includes a center rod, a plurality of password wheels and a plurality of code adjustment wheels, wherein the plurality of code adjustment wheels are installed in the plurality of password wheels in a one-to-one correspondence, the center rod passes through the plurality of code adjustment wheels and is parallel to the bolt plate, and the center rod can move axially only after the plurality of password wheels rotate to the correct password;

[0011] Entering the correct password in the password component or inserting the correct key to turn the lock core can operate the sliding bolt plate to push the lock hook to unlock. Its characteristics are:

[0012] A stop block is arranged in the button, and a limit protrusion is arranged on the stop block. The bolt plate is provided with a long strip-shaped clearance hole perpendicular to its sliding direction, and the limit protrusion is inserted into the clearance hole; so that in the locked state, the limit protrusion locks the bolt plate;

[0013] The stop block is provided with a long strip stop groove, and the bottom of the lock core is embedded in the stop groove, so that the lock core and the stop block rotate together, and the stop block can move along the length direction of the stop groove relative to the lock core;

[0014] The pressing direction of the button is perpendicular to the axial direction of the center rod, and a transmission inclined surface is provided between the button and the center rod;

[0015] When the password is unlocked, the password wheel rotates to the correct password, and the button is pressed by external force to drive the center rod to move, and the center rod drives the lock tongue plate and the stop block to slide and unlock;

[0016] When the key is unlocked, the correct key is inserted and the lock core is turned, which drives the stop block to rotate, and the limiting protrusion of the stop block drives the lock tongue plate to slide and unlock.

[0017] Specifically, the button includes a lower support, an inner support and an upper support. The inner support is clamped and stored between the lower support and the upper support. The lock core is passed through the inner support. A slot for embedding a stop block is provided on the top of the lower support. The stop block can rotate at the slot or slide along the unlocking direction of the lock tongue plate.

[0018] Specifically, the slot wall of the slot is arranged to penetrate, so that the stop block can pass out of the lower support.

[0019] Specifically, the inner support is provided with a first inclined portion passing through the upper support, the central rod is provided with a second inclined portion, and the first inclined portion abuts against the second inclined portion.

[0020] Specifically, an avoidance hole is opened in the middle of the lock tongue plate, and the center rod is partially embedded in the avoidance hole, so that when the password is unlocked, the center rod presses against the groove wall of the avoidance groove along the unlocking direction; and when the key is unlocked, the center rod moves relatively in the avoidance groove.

[0021] Specifically, a support seat is provided in the lock housing, and the lock hook is movably installed on the support seat.

[0022] Specifically, the bolt plate is installed at the bottom of the support seat.

[0023] Specifically, the support seat is integrally injection molded with a plurality of elastic arms, the plurality of elastic arms correspond to the plurality of code wheels one by one, the outer side of the code wheel is circumferentially separated with step rotation grooves, and the elastic arms are provided with damping protrusions embedded in the step rotation grooves.

[0024] Specifically, the lock housing comprises a bottom plate and an upper cover body which are clamped and fixed to each other, and the support seat and the upper cover body are clamped and fixed to each other.

[0025] Specifically, the lock hook and the button are respectively arranged at two ends of the lock shell, and the password component is arranged in the middle of the lock shell.

[0026] Beneficial effects of the present invention:

[0027] Compared with the prior art, the compact and high-security luggage lock of the present invention has a limit protrusion that locks the bolt plate in the locked state, so even if the luggage lock is hit hard, the bolt plate cannot slide to unlock, thereby ensuring the safety performance of the luggage lock. Furthermore, a stop block is arranged inside the button, which has a compact structure and provides an implementation basis for password unlocking and key unlocking. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention is further described below using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention. A person skilled in the art can obtain other drawings based on the following drawings without creative work.

[0029] Figure 1 It is a schematic structural diagram of a compact and high-security luggage lock in an embodiment.

[0030] Figure 2 Detailed description of the invention The figure is an exploded view of a compact and high-security luggage lock in an embodiment.

[0031] Figure 3 Schematic diagram of the internal structure of a compact and high-security luggage lock in an embodiment.

[0032] Figure 4 It is an exploded view of part of the internal structure of a compact and high-security luggage lock in an embodiment.

[0033] Reference numerals:

[0034] Lock housing 1, lock hole 11, bottom plate 12, upper cover 13;

[0035] Lock hook 2;

[0036] The bolt plate 3, the clearance hole 31, the avoidance hole 32;

[0037] Button 4, lower support 41, slot 411, inner support 42, first inclined portion 421, upper support 43;

[0038] Stop block 5, limiting protrusion 51, stop groove 52;

[0039] Password assembly 6, center rod 61, second inclined portion 611, password wheel 62, stepping rotation slot 621, code adjustment wheel 63;

[0040] Lock Ren 7;

[0041] Support seat 8, elastic arm 81, damping protrusion 82. DETAILED DESCRIPTION

[0042] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0043] A compact and highly secure luggage lock of this embodiment, such as Figures 1 to 4As shown, it includes a lock shell 1, a lock hook 2, a bolt plate 3, a button 4, a password component 6 and a lock core 7. The lock shell 1 has a lock hole 11, and the lock hook 2 is movably installed in the lock shell 1 and corresponds to the lock hole 11. The bolt plate 3 is slidably installed in the lock shell 1 to drive the lock hook 2 to unlock. The button 4 is elastically and movably installed on the lock shell 1 through its bottom spring and partially exposed outside the lock shell 1. The lock core 7 is installed at the button 4. The password component 6 includes a center rod 61, a plurality of password wheels 62 and a plurality of code adjustment wheels 63. The plurality of code adjustment wheels 63 are installed in the plurality of password wheels 62 in a one-to-one correspondence. The center rod 61 passes through the plurality of code adjustment wheels 63 and is parallel to the bolt plate 3. The center rod 61 can only move axially after the plurality of password wheels 62 are turned to the correct password. When the correct password is entered in the password component 6 or the correct key is inserted to turn the lock core 7, the button 4 can be operated or the lock core 7 can be turned to drive the bolt plate 3 to slide and push the lock hook 2 to unlock. These structures are the basic structures of existing luggage locks, which are also included in this embodiment and will not be described in detail. The main improvements are:

[0044] A stop block 5 is provided in the button 4, which is in a flat oval shape. A cylindrical limiting protrusion 51 is provided at the bottom of the stop block 5, which deviates from the rotation center. The lock tongue plate 3 is provided with a long strip-shaped clearance hole 31 perpendicular to its sliding direction. The limiting protrusion 51 is inserted into the clearance hole 31. The limiting protrusion 51 can move in the length direction of the clearance hole 31, but can hardly move in the width direction of the clearance hole 31, so that in the locked state, the limiting protrusion 51 locks the lock tongue plate 3.

[0045] The top of the stop block 5 is provided with a long stop groove 52 , and the bottom of the lock core 7 is embedded in the stop groove 52 . The lock core 7 and the stop block 5 rotate together, and the stop block 5 can move along the length direction of the stop groove 52 relative to the lock core 7 .

[0046] When the password is unlocked, the password wheel 62 rotates to the correct password, and the button 4 is pressed by external force to drive the center rod 61 to move, and the center rod 61 drives the bolt plate 3 and the stop block 5 to slide and unlock. When the key is unlocked, the correct key is inserted and the lock core 7 is rotated to drive the stop block 5 to rotate, and the limit protrusion 51 of the stop block 5 drives the bolt plate 3 to slide and unlock.

[0047] Specifically, the button 4 includes a lower support 41, an inner support 42 and an upper support 43. The inner support 42 is clamped and accommodated between the lower support 41 and the upper support 43. The lock core 7 is passed through the inner support 42 and the keyhole is exposed from the top of the upper support 43. A slot 411 is provided on the top of the lower support 41 for the stop block 5 to be embedded. The stop block 5 can rotate at the slot 411 and slide along the unlocking direction of the lock tongue plate 3.

[0048] Specifically, the pressing direction of the button 4 is perpendicular to the axial direction of the center rod 61, and a transmission slope is provided between the button 4 and the center rod 61. The inner support 42 is provided with a first inclined portion 421 passing through the upper support 43, and the center rod 61 is provided with a second inclined portion 611, and the first inclined portion 421 abuts against the second inclined portion 611.

[0049] Specifically, the groove wall of the locking groove 411 is arranged to penetrate, so that the stop block 5 can pass through the lower support 41 .

[0050] Specifically, a avoidance hole 32 is opened in the middle of the lock tongue plate 3, and the center rod 61 is partially embedded in the avoidance hole 32, so that when the password is unlocked, the center rod 61 presses against the groove wall of the avoidance groove along the unlocking direction; and when the key is unlocked, the center rod 61 moves relatively in the avoidance groove.

[0051] Specifically, a support seat 8 is provided in the lock housing 1 , and the lock hook 2 is movably mounted on the support seat 8 . The bolt plate 3 is mounted on the bottom of the support seat 8 .

[0052] Specifically, the support seat 8 is integrally injection-molded with a plurality of elastic arms 81, and the plurality of elastic arms 81 correspond one-to-one to the plurality of code wheels 62. The outer side of the code wheel 62 is circumferentially separated with step rotation grooves 621, and the elastic arms 81 are provided with damping protrusions 82 embedded in the step rotation grooves 621, so that the user has a good touch when turning the code wheel 62. The seat body supporting the lock hook 2 has the function of the previous spring piece, and the structure is simpler.

[0053] Specifically, the lock housing 1 includes a bottom plate 12 and an upper cover body 13 which are clamped and fixed to each other, and the support seat 8 and the upper cover body 13 are clamped and fixed to each other.

[0054] Specifically, the lock hook 2 and the button 4 are respectively arranged at two ends of the lock housing 1 , and the password component 6 is arranged in the middle of the lock housing 1 .

[0055] In the description of the present invention, it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments. The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations.

[0056] Therefore, the above detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0057] In the description of the present invention, it should be noted that the terms "middle", "upper", "lower", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0058] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "disposed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A compact high-security luggage lock, comprising a lock housing (1), a lock hook (2), a lock tongue plate (3), a button (4), a password component (6) and a lock core (7); the lock housing (1) is provided with a lock hole (11); the lock hook (2) is movably mounted in the lock housing (1) and corresponds to the lock hole (11); The bolt plate (3) is slidably mounted in the lock housing (1) and is used to drive the lock hook (2) to unlock; The button (4) is elastically mounted on the lock housing (1) and partially exposed outside the lock housing (1), and the lock core (7) is mounted on the button (4); The password assembly (6) comprises a central rod (61), a plurality of password wheels (62) and a plurality of code adjustment wheels (63), wherein the plurality of code adjustment wheels (63) are mounted in the plurality of password wheels (62) in a one-to-one correspondence, the central rod (61) passes through the plurality of code adjustment wheels (63) and is parallel to the bolt plate (3), and the central rod (61) can only move axially after the plurality of password wheels (62) rotate to a correct password; By inputting a correct password into the password component (6) or inserting a correct key and turning the lock core (7), the sliding bolt plate (3) can be operated to push the lock hook (2) to unlock the lock. The invention is characterized in that: A stop block (5) is arranged inside the button (4), and a limiting protrusion (51) is arranged on the stop block (5). The bolt plate (3) is provided with a long strip-shaped clearance hole (31) perpendicular to its sliding direction, and the limiting protrusion (51) is inserted into the clearance hole (31); so that in the locked state, the limiting protrusion (51) locks the bolt plate (3); The stop block (5) is provided with a long strip stop groove (52), and the bottom of the lock core (7) is embedded in the stop groove (52), so that the lock core (7) and the stop block (5) rotate together, and the stop block (5) can move relative to the lock core (7) along the length direction of the stop groove (52); The pressing direction of the button (4) is perpendicular to the axial direction of the center rod (61), and a transmission inclined surface is provided between the button (4) and the center rod (61); When the password is unlocked, the password wheel (62) rotates to the correct password, and the button (4) is pressed by external force to drive the center rod (61) to move, and the center rod (61) drives the lock tongue plate (3) and the stop block (5) to slide and unlock; When the key is unlocked, the correct key is inserted and the lock core (7) is rotated, which drives the stop block (5) to rotate, and the limiting protrusion (51) of the stop block (5) drives the bolt plate (3) to slide and unlock.

2. A compact high-security luggage lock according to claim 1, characterized in that: The button (4) comprises a lower support (41), an inner support (42) and an upper support (43); the inner support (42) is clamped and accommodated between the lower support (41) and the upper support (43); the lock core (7) is inserted into the inner support (42); a slot (411) for a stop block (5) to be embedded is provided at the top of the lower support (41); the stop block (5) can rotate at the slot (411) or slide along the unlocking direction of the lock tongue plate (3).

3. A compact high-security luggage lock according to claim 2, characterized in that: The groove wall of the clamping groove (411) is arranged to penetrate, so that the stop block (5) can pass out of the lower support (41).

4. A compact high-security luggage lock according to claim 2, characterized in that: The inner support (42) is provided with a first inclined portion (421) penetrating the upper support (43), the central rod (61) is provided with a second inclined portion (611), and the first inclined portion (421) abuts against the second inclined portion (611).

5. The compact high-security luggage lock according to claim 1 is characterized in that: The middle part of the bolt plate (3) is provided with an escape hole (32), and the center rod (61) is partially embedded in the escape hole (32), so that when the password is unlocked, the center rod (61) abuts against the groove wall of the escape groove along the unlocking direction; and when the key is unlocked, the center rod (61) moves relatively in the escape groove.

6. A compact high-security luggage lock according to claim 1, characterized in that: A support seat (8) is arranged inside the lock housing (1), and the lock hook (2) is movably mounted on the support seat (8).

7. A compact high-security luggage lock according to claim 6, characterized in that: The bolt plate (3) is mounted on the bottom of the support seat (8).

8. A compact high-security luggage lock according to claim 6, characterized in that: The support seat (8) is integrally injection molded with a plurality of elastic arms (81), the plurality of elastic arms (81) correspond one to one with the plurality of code wheels (62), the outer side of the code wheel (62) is provided with step rotation grooves (621) in a circumferentially spaced manner, and the elastic arms (81) are provided with damping protrusions (82) embedded in the step rotation grooves (621).

9. A compact high-security luggage lock according to claim 6, characterized in that: The lock housing (1) comprises a bottom plate (12) and an upper cover body (13) which are fixedly connected to each other, and a support seat (8) and the upper cover body (13) are fixedly connected to each other.

10. A compact high-security luggage lock according to claim 1, characterized in that: The lock hook (2) and the button (4) are respectively arranged at the two ends of the lock housing (1), and the password component (6) is arranged in the middle of the lock housing (1).

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