Case and bag lock capable of being prevented from being unlocked by falling

Abstract

The utility model relates to the technical field of locksets, in particular to an anti-drop unlocking luggage lock which comprises a lock shell, a linkage rod, a lock hook, a password assembly and a key assembly, the lock hook is movably installed in the lock shell and is aligned with a lock hole of the lock shell, and the linkage rod is slidably installed in the lock shell to drive the lock hook to movably unlock. The linkage rod is controlled by the password assembly and the key assembly. The lock further comprises a button, the button is installed in the lock shell in an elastic floating mode, the linkage rod is provided with an unlocking inclined face, and the button moves downwards to drive the linkage rod to slide in the vertical direction. In a locking state, the password assembly doubly limits the press-down of the button from the side part and the bottom part of the button to ensure that the button is not pressed down due to collision and heavy falling; during password unlocking, double restrictions are relieved at the same time; the key assembly comprises a lock cylinder and a shifting block installed at the bottom of the lock cylinder, and when the lock cylinder rotates, the shifting block is driven to move by a preset distance, and then the linkage rod is delayed to move. Even if the lock cylinder slightly rotates due to shaking and collision, the linkage rod cannot be driven to move, and the safety coefficient is high.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, in particular to a luggage lock which is resistant to falling and unlocking. Background Art

[0002] As people travel and go on business trips, various types of bags such as travel bags, suitcases, mobile bags and briefcases play an increasingly important role in people's lives because they carry a lot of valuables or materials; therefore, the safety and convenience of their use are also widely valued by people.

[0003] In order to improve the safety of luggage, the traditional practice is to install luggage locks on both ends of the luggage, with two independent locks installed on each end. Later, central locks, also known as linkage locks, appeared. The key password mechanism and operating parts in the middle simultaneously control the lock hooks on both sides, eliminating the need to operate the two sets of lock hooks separately, making it convenient to use.

[0004] For example, a Chinese patent document with the authorization announcement number CN218843998U discloses a compact linkage lock, including a lock shell, a lock hook located at both ends of the lock shell for locking the peripheral lock buckle, a locking device located in the middle of the lock shell, and a linkage plate located between the locking device and the lock hook, one end of the linkage plate limits or unlocks the lock hook, and the other end of the linkage plate is limited or unlocked by the locking device, and the locking device includes a password mechanism, a key mechanism, a lock block and a button, the button is elastically installed above the two linkage plates in a floating manner, and the button can drive the two linkage plates to slide and unlock the lock hook when the button is subjected to an external force downward; the lock block is arranged below the button and is provided with a clearance hole, and the button is provided with an unlocking column, and only after the password is correct or the key is correct, the unlocking column can be aligned and inserted into the clearance hole so that the button can be pressed. The operation is convenient by driving the two linkage plates to unlock the lock hook by pressing the button; and the unlocking column of the button is arranged to align with the clearance hole of the lock block to unlock, and the structure is compact and stable.

[0005] The linkage lock controls the sliding of the linkage plate through the middle button / push-twist to unlock the lock hook. For the password mechanism, the existing technology uses a center rod inserted in the password wheel to push against the button. After the correct password is entered, the center rod can move axially to unlock. For the key mechanism, the linkage plate is generally unlocked by moving the block at the bottom of the lock body.

[0006] In practice, if the luggage is hit or dropped maliciously, the center rod may be easily unlocked passively due to insufficient strength, or the lock core and its shift block may shake and hit the linkage plate, which may cause unexpected unlocking and pose a certain safety hazard. Utility Model Content

[0007] In view of all or part of the above-mentioned technical problems in the prior art, the utility model provides a luggage lock which is resistant to being thrown and unlocked.

[0008] To achieve the above object, the present utility model provides the following technical solutions:

[0009] Provided is a luggage lock with anti-fall unlocking function, including a lock housing, a linkage rod, a lock hook, a password component and a key component. The lock hook is movably installed in the lock housing and aligned with the lock hole of the lock housing. The linkage rod is slidably installed in the lock housing to drive the lock hook to move for unlocking. The linkage rod is controlled by the password component and the key component. Its characteristics are:

[0010] It further includes a button, which is elastically and floatingly installed in the lock housing and partially exposed. The linkage rod is provided with an unlocking inclined surface, so that when the button moves downward, it drives the linkage rod to slide in the vertical direction.

[0011] In the locked state, the password component doubly restricts the downward pressing of the button from the side and bottom of the button; when unlocking with the password, the double restriction is released simultaneously.

[0012] The key component includes a lock core and a dial block installed at the bottom of the lock core. When the lock core rotates, it drives the dial block to move a preset distance before delaying to drive the linkage rod to move.

[0013] As a further optional solution, the password component includes a central rod, a plurality of password wheels and a plurality of code adjustment wheels. The plurality of code adjustment wheels are respectively installed inside the corresponding plurality of password wheels. The password wheels and the corresponding code adjustment wheels rotate together. The central rod passes through the plurality of code adjustment wheels. The end of the central rod abuts against the side inclined surface of the button via a limiting inclined surface to limit the button in the pressing direction.

[0014] Respective position-limiting protrusions are provided inside each code adjustment wheel. A plurality of axially aligned position-limiting grooves are formed on the outside of the central rod. When any position-limiting groove is staggered from the position-limiting protrusion, the axial movement of the central rod is restricted. After the password wheels drive the code adjustment wheels to rotate to the correct password, the position-limiting protrusions of each code adjustment wheel are aligned with the corresponding position-limiting grooves of the central rod, and the central rod can move axially to release the limit on the button in the pressing direction.

[0015] As a further optional solution, the password component further includes a lock piece located below the code adjustment wheel. A first spring for applying force to the lock piece is provided in the lock housing to keep the lock piece in a tendency to approach the code adjustment wheel. The lock piece is provided with a plurality of unlocking arched portions. A plurality of unlocking grooves are provided on the outside of the code adjustment wheel extending out of the password wheel. After the password wheels drive the code adjustment wheels to rotate to the correct password, each unlocking groove is aligned with the unlocking arched portion, and each unlocking arched portion is embedded into the corresponding unlocking groove to make the lock piece float upward.

[0016] A limiting rod and a connecting piece are further provided below the lock piece. The limiting rod is slidably installed in the lock housing and extends below the button to block the button. A second spring for applying force to the limiting rod is provided in the lock housing to keep the limiting rod in a tendency to release the block on the button. The connecting piece is controlled by the lock piece to abut against the limiting rod to keep blocking the button.

[0017] As a further optional solution, the connecting piece can be rotatably installed on the lock housing, which includes an axis body, a first swing arm and a second swing arm. The first swing arm and the second swing arm are formed at a preset angle on the axis body, the first swing arm abuts against the lock plate, and the second swing arm abuts against the limit rod.

[0018] As a further optional solution, the lock core is rotatably installed in the button, a third spring for applying force to the button upward is arranged in the lock housing, and the limiting rod is provided with a makeshift hole to leave installation space for the third spring.

[0019] As a further optional scheme, the linkage rod is rotatably provided with a pendulum seat, and a fourth spring is provided between the pendulum seat and the linkage rod. When the key is unlocked, the shift block overcomes the force of the fourth spring and drives the pendulum seat to rotate until the pendulum seat rotates to the extreme position and hits the linkage rod, and the shift block continues to push the pendulum seat and the linkage rod to slide.

[0020] As a further optional solution, the button is provided with an unlocking boss for squeezing the unlocking inclined surface of the linkage rod, and when the pendulum seat rotates to the extreme position, it sticks to the unlocking inclined surface and avoids the unlocking boss.

[0021] As a further optional scheme, the lock hooks are respectively provided at both ends of the lock shell, and the lock hooks are adapted to be fitted with lock buckles that are interlocked. The linkage rods are respectively provided on the two opposite sides of the button, and the moving directions of the two linkage rods are opposite. The unlocking protrusions are respectively provided on the two opposite sides of the button, and the shift block is provided with two shift rod protrusions corresponding to the swing seats of the two linkage rods.

[0022] Beneficial effects of the utility model:

[0023] Compared with the prior art, the luggage lock of the utility model which is resistant to falling and unlocking has a password component which double-restricts the pressing of a button from the side and bottom of the button in a locked state, thereby ensuring that the button will not be pressed due to impact or heavy fall; and the lock core will drive the shift block to move a certain distance before driving the linkage rod, so even if the lock core rotates slightly due to shaking or impact, it will not drive the linkage rod to move, and the safety factor is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The figure is a schematic diagram of the structure of a luggage lock that is resistant to falling and unlocking in an embodiment.

[0025] Figure 2 The figure is an exploded view of a luggage lock that is resistant to falling and unlocking in an embodiment.

[0026] Figure 3 It is a schematic diagram of the core structures such as the key assembly, password assembly, linkage rod, button, dial block and limiter in the embodiment, which is in a locked state.

[0027] Figure 4 for Figure 3Schematic diagram of another perspective.

[0028] Figure 5 is Figure 3 exploded view of.

[0029] Figure 6 is Figure 5 exploded view that further hides the linkage rod.

[0030] Figure 7 is Figure 3 schematic diagram of another state, in a state where the password is correct and the button is not pressed.

[0031] Figure 8 is based on Figure 7 and further shows the state of unlocking after the password is correct and the button is pressed.

[0032] Figure 9 is a schematic diagram after the password is incorrect and the key is used to unlock.

[0033] Reference numerals:

[0034] Lock housing 1, keyhole 11;

[0035] Linkage rod 2, unlocking inclined surface 21, swing seat 22;

[0036] Lock hook 3, lock catch 4;

[0037] Password component 5, central rod 51, limiting inclined surface 511, stop groove 512, password wheel 52, code adjustment wheel 53, unlocking groove 531, lock piece 54, unlocking arch 541, limiting rod 55, relief hole 551, connecting piece 56, shaft body 561, first swing arm 562, second swing arm 563;

[0038] Key component 6, lock core 61, dial block 62, dial rod protrusion 621;

[0039] Button 7, unlocking stud 71, side inclined surface 72. Detailed implementation manner

[0040] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0041] A drop-proof unlocking luggage lock in this embodiment, as Figures 1 to 9As shown, it includes a lock shell 1, a linkage rod 2, a lock hook 3, a password component 5 and a key component 6. The lock shell 1 is in the shape of a long strip. Two sets of lock hooks 3 can be movably installed at the two ends of the lock shell 1 and aligned with the lock hole 11 of the lock shell 1 so that the matching lock buckle 4 can be inserted and buckled with each other. When in use, the lock shell 1 is fixed to one opening and closing side of the bag, and the lock buckle 4 is installed on the other opening and closing side of the bag. The two sets of linkage rods 2 can be slidably installed in the lock shell 1. The sliding of the linkage rod 2 can drive the lock hook 3 to move and unlock. The linkage rod 2 is controlled by the password component 5 and the key component 6. The limit unlocking of the linkage rod 2 can be released only after the correct password is entered or the correct key is inserted. The main improvements are:

[0042] It also includes a button 7, which can be elastically and floatingly installed in the lock housing 1 and partially exposed. The linkage rod 2 is provided with an unlocking inclined surface 21, and the button 7 is provided with an unlocking protrusion 71 for squeezing the unlocking inclined surface 21 of the linkage rod 2 to move the button 7 downward and drive the linkage rod 2 to slide in the vertical direction.

[0043] The password assembly 5 includes a central rod 51, a plurality of password wheels 52 and a plurality of code adjustment wheels 53. The plurality of code adjustment wheels 53 are coaxially mounted on the inner side of the plurality of password wheels 52 in a one-to-one correspondence. The password wheels 52 and the corresponding code adjustment wheels 53 rotate together. The central rod 51 passes through the plurality of code adjustment wheels 53. The end of the central rod 51 abuts against the side inclined surface 72 of the button 7 via the limiting inclined surface 511 to limit the button 7 in the pressing direction, thereby realizing the first restriction on the button 7. Stop protrusions are respectively arranged on the inner side of each code adjustment wheel 53. A plurality of stop grooves 512 aligned along the axial direction are arranged on the outer side of the central rod 51. If any stop groove 512 is staggered from the stop protrusion, the axial movement of the central rod 51 is restricted. After the password wheel 52 drives the code adjustment wheel 53 to rotate to the correct password, the stop protrusions of each code adjustment wheel 53 are aligned with the corresponding stop grooves 512 of the central rod 51. The central rod 51 can then move axially to release the restriction on the button 7 in the pressing direction.

[0044] The password component 5 further includes a locking piece 54 located below the code adjustment wheel 53. A first spring for applying a force to the locking piece 54 is arranged in the lock housing 1 so that the locking piece 54 maintains an upward trend. The locking piece 54 is provided with a plurality of unlocking arched portions 541 that abut against the outer side of the code adjustment wheel 53. A plurality of unlocking grooves 531 are arranged on the outer side of the code adjustment wheel 53 extending out of the password wheel 52. After the password wheel 52 drives the code adjustment wheel 53 to rotate to the correct password, each unlocking groove 531 is aligned with the unlocking arched portion 541, and each unlocking arched portion 541 is embedded into the corresponding unlocking groove 531 to make the locking piece 54 float upward. A limiting rod 55 and a connecting piece 56 are further arranged below the locking piece 54. The limiting rod 55 is slidably installed in the lock housing 1 and extends below the button 7 to block the button 7, realizing a second-level restriction on the button 7. A second spring for applying a force to the limiting rod 55 is arranged in the lock housing 1 so that the limiting rod 55 maintains a trend of releasing the block on the button 7. The connecting piece 56 is controlled by the locking piece 54 to abut against the limiting rod 55 to keep blocking the button 7. Specifically, the connecting piece 56 is rotatably installed in the lock housing 1 and includes a shaft body 561, a first swing arm 562 and a second swing arm 563. The first swing arm 562 and the second swing arm 563 are formed on the shaft body 561 at a preset angle. The first swing arm 562 abuts against the locking piece 54, and the second swing arm 563 abuts against the limiting rod 55. When the password is incorrect, the locking piece 54 presses down the first swing arm 562, and the second swing arm 563 presses against the limiting rod 55 so that the end of the limiting rod 55 keeps blocking the button 7, as shown in Figure 3 the state shown; when the password is correct, the locking piece 54 moves upward, the connecting piece 56 rotates, and the second spring drives the limiting rod 55 to move to release the block on the button 7, as shown in Figure 7 the state shown. Then the button 7 is pressed down, and the unlocking convex column 71 presses down to unlock the lower part, so that the linkage rod 2 drives the lock hook 3 to unlock in a direction perpendicular thereto, as shown in Figure 8 the state shown.

[0045] The above realizes that in the locked state, the password component 5 doubly restricts the downward pressing of the button 7 from the side and bottom of the button 7; when the password is unlocked, the double restriction is released simultaneously.

[0046] In this embodiment, the key assembly 6 includes a lock core 61 and a shift block 62 installed at the bottom of the lock core 61. When the lock core 61 rotates, the shift block 62 is driven to move a preset distance before delaying the movement of the linkage rod 2. The lock core 61 is rotatably installed in the button 7. A third spring is provided in the lock shell 1 to apply force to the button 7 upward. The limit rod 55 is provided with an elliptical clearance hole 551 to leave installation space for the third spring. The linkage rod 2 is rotatably provided with a pendulum seat 22. A fourth spring is provided between the pendulum seat 22 and the linkage rod 2 to keep the pendulum seat 22 in a tilted state. The shift block 62 is provided with two shift rod protrusions 621 corresponding to the pendulum seats 22 of the two linkage rods 2 respectively. When the key is used to unlock the lock, the shift rod protrusion 621 of the shift block 62 overcomes the force of the fourth spring and drives the pendulum seat 22 to rotate. After the pendulum seat 22 rotates to the limit position and hits the linkage rod 2, the shift block 62 continues to push the pendulum seat 22 to slide together with the linkage rod 2. Figure 9 When the swing seat 22 rotates to the limit position, it abuts against the unlocking inclined surface 21 and avoids the unlocking protrusion 71.

[0047] 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.

[0048] Therefore, the above detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of the utility model.

[0049] In the description of the present utility model, 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 utility model product is usually placed when in use, which are only for the convenience of describing the present utility model 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 a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0050] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "arranged", "connected" and "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection. It may be a mechanical connection or an electrical connection. It may be directly connected or indirectly connected through an intermediate medium, and may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

Claims

1. A luggage lock that is resistant to falling and unlocking, comprising a lock shell (1), a linkage rod (2), a lock hook (3), a password assembly (5) and a key assembly (6), wherein the lock hook (3) is movably mounted in the lock shell (1) and aligned with a lock hole (11) of the lock shell (1), and the linkage rod (2) is slidably mounted in the lock shell (1) to drive the lock hook (3) to be movably unlocked, and the linkage rod (2) is controlled by the password assembly (5) and the key assembly (6); the characteristics are: The lock also comprises a button (7), which can be elastically and floatingly installed in the lock housing (1) and partially exposed, and the linkage rod (2) is provided with an unlocking inclined surface (21) so that the button (7) moves downward to drive the linkage rod (2) to slide in a vertical direction; In the locked state, the password component (5) double-restricts the button (7) from the side and bottom of the button (7) and presses down; when the password is unlocked, the double restrictions are released at the same time; The key assembly (6) comprises a lock core (61) and a shifting block (62) installed at the bottom of the lock core (61). When the lock core (61) rotates, the shifting block (62) is driven to move a preset distance before delaying the movement of the linkage rod (2).

2. The anti-dropping and unlocking luggage lock according to claim 1 is characterized by: The password assembly (5) comprises a central rod (51), a plurality of password wheels (52) and a plurality of code adjustment wheels (53). The plurality of code adjustment wheels (53) are mounted one by one on the inner sides of the plurality of password wheels (52). The password wheels (52) and the corresponding code adjustment wheels (53) rotate together. The central rod (51) passes through the plurality of code adjustment wheels (53). The end of the central rod (51) abuts against the side inclined surface (72) of the button (7) via a limiting inclined surface (511) to limit the button (7) in the pressing direction. A stop protrusion is arranged on the inner side of each code adjustment wheel (53), and a plurality of stop grooves (512) aligned along the axial direction are arranged on the outer side of the center rod (51). If any stop groove (512) is staggered from the stop protrusion, the axial movement of the center rod (51) is restricted. After the code wheel (52) drives the code adjustment wheel (53) to rotate to a correct code, the stop protrusions of each code adjustment wheel (53) are aligned with the stop grooves (512) corresponding to the center rod (51), and the center rod (51) can move axially to release the limit on the button (7) in the pressing direction.

3. The anti-drop unlocking luggage lock according to claim 2 is characterized by: The password component (5) also includes a locking plate (54) located below the coding wheel (53); a first spring is arranged in the lock housing (1) to apply force to the locking plate (54) so ​​that the locking plate (54) keeps a tendency to approach the coding wheel (53); the locking plate (54) is provided with a plurality of unlocking arches (541); a plurality of unlocking grooves (531) are arranged on the outer side of the coding wheel (53) extending from the coding wheel (52); after the coding wheel (52) drives the coding wheel (53) to rotate to a correct password, each unlocking groove (531) is aligned with the unlocking arch (541), and each unlocking arch (541) is embedded in the corresponding unlocking groove (531) to make the locking plate (54) float upward; A limiting rod (55) and a connecting piece (56) are also provided below the lock plate (54); the limiting rod (55) is slidably installed in the lock housing (1) and extends to the bottom of the button (7) to block the button (7); a second spring is provided in the lock housing (1) to apply force to the limiting rod (55) so that the limiting rod (55) maintains a tendency to release the blocking of the button (7); The connecting piece (56) is controlled by the locking piece (54) and abuts against the limiting rod (55) to keep the blocking button (7).

4. The anti-dropping and unlocking luggage lock according to claim 3 is characterized by: The connecting member (56) is rotatably mounted on the lock housing (1), and comprises a shaft body (561), a first swing arm (562) and a second swing arm (563). The first swing arm (562) and the second swing arm (563) are formed on the shaft body (561) at a preset angle. The first swing arm (562) abuts against the lock plate (54), and the second swing arm (563) abuts against the limit rod (55).

5. The anti-drop unlocking luggage lock according to claim 3 is characterized by: The lock core (61) is rotatably mounted in the button (7), a third spring for applying force to the button (7) upward is arranged in the lock housing (1), and the limiting rod (55) is provided with a clearance hole (551) for leaving installation space for the third spring.

6. The anti-drop unlocking luggage lock according to claim 1, characterized in that: The linkage rod (2) is rotatably provided with a pendulum seat (22), and a fourth spring is provided between the pendulum seat (22) and the linkage rod (2). When the key is unlocked, the shift block (62) overcomes the action force of the fourth spring and drives the pendulum seat (22) to rotate until the pendulum seat (22) rotates to the limit position and abuts against the linkage rod (2), and then the shift block (62) continues to push the pendulum seat (22) and the linkage rod (2) to slide.

7. The anti-drop unlocking luggage lock according to claim 6, characterized in that: The button (7) is provided with an unlocking convex column (71) for pressing the unlocking inclined surface (21) of the linkage rod (2); when the swing seat (22) rotates to the extreme position, it sticks to the unlocking inclined surface (21) and avoids the unlocking convex column (71).

8. The anti-drop unlocking luggage lock according to claim 7, characterized in that: The lock hooks (3) are respectively arranged at both ends of the lock housing (1), and the lock hooks (3) are adapted to be fitted with lock buckles (4) that are locked with each other. The linkage rods (2) are respectively arranged on the two opposite sides of the button (7), and the two linkage rods (2) move in opposite directions. The unlocking protrusions (71) are respectively arranged on the two opposite sides of the button (7), and the shifting block (62) is provided with two shifting rod protrusions (621) that respectively correspond to the swing seats (22) of the two linkage rods (2).

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