Double-button padlock compact in layout

Abstract

The invention relates to the technical field of locks, in particular to a compact-layout double-button padlock which comprises a first lock body and a second lock body, the second lock body comprises a second lock shell and a turning cover, the turning cover is hinged to the second lock shell, and a lock catch is arranged at the bottom of the turning cover. The first lock body comprises a first lock shell, a spring bolt assembly, a left button, a right button, a key assembly and a password assembly, and the spring bolt assembly is installed in the first lock shell in a sliding mode. The password assembly is installed between the left button and the right button, and after a correct password is input, limitation on the left button and the right button can be relieved. After unlocking, external force presses the left button and the right button inwards to synchronously apply force to the spring bolt assembly to relieve constraint to the lock catch. The key assembly comprises a lock core and a linkage plate, and when the lock core rotates, the linkage plate can be driven to slide, and the lock tongue assembly is driven to relieve constraint on the lock catch. Compared with the prior art, the requirement for bilateral pressing unlocking can be met, the linkage plate can be directly driven by rotating the lock cylinder to drive the spring bolt assembly to unlock, convenience and rapidness are achieved, and use is more flexible.

Description

Technical Field

[0001] The present invention relates to the technical field of locks, and in particular to a double-button buckle lock with a compact layout. Background Art

[0002] Luggage locks are often installed on the panel where the luggage is closed. The lock body on one side of the luggage is buckled onto the locking piece on the other side to form a locking fit. The lock body is provided with an operating piece for separating the locking piece from the lock body. The operating piece is locked by a password wheel assembly and can only be operated by the user when the seal is correct. Due to its convenience of not requiring a key to be inserted, it is widely used by people who travel frequently.

[0003] As disclosed in the Chinese patent document with announcement number CN219605083U, a convex-concave positioning buckle lock comprises a first body and a second body respectively fixed on the two opening and closing sides of the luggage, the first body is provided with a lock tongue, an unlocking piece and a lock body, the lock tongue is movably installed in the lock hole of the first body, and the second body is hinged with a rotating piece, and the lock buckle of the rotating piece can be inserted into the lock hole of the first body and locked by the lock tongue; after the correct instruction is input into the lock body, the lock body can release the constraint on the unlocking piece, and operating the unlocking piece can drive the lock tongue to move and release the constraint on the lock buckle; the first body and the second body are matched through the through curved surface, so after the two are matched, there is only a limit in the longitudinal direction perpendicular to the opening and closing seam, and there is no limit in the transverse direction of the length direction of the opening and closing seam of the luggage, so the first body and the second body are easier to fit together in the longitudinal direction; and in the transverse direction, the limit groove at the bottom of the first body and the second body is embedded in the rotating piece, which makes operation simpler and improves the user experience.

[0004] Another example is a TSA combination buckle lock disclosed in Chinese patent publication CN107419973B. The lock comprises an upper shell and a lower shell. The upper shell has an upper notch at one end, and a lower notch at one end. The upper and lower notches abut to form a buckle cover groove. The lower notch has a buckle hole. The upper notch houses a buckle cover that automatically pops up after being unlocked. The lower shell is equipped with left and right lock tongue structures that lock the buckle cover and prevent it from automatically popping up. The lower shell also houses a combination wheel, a lock cylinder, a swingable block, and push buttons for controlling the left and right lock tongue structures to release the buckle cover. The lock and unlock mechanism is simple, the internal structure is minimal, and the lock and unlock mechanism is easy to install.

[0005] The above technologies are all previously developed by the inventors. During further research and development, it was discovered that the two sets of lock tongues in the above-mentioned buckle locks need to move closer together to lock or farther apart to unlock. Therefore, a push mechanism at the end of the lock shell is required to drive the lock tongues through the inclined surface. Only a single push mechanism can be provided, which cannot meet the requirement of double-sided push unlocking. Furthermore, whether unlocking by password or key, both require unlocking and then pressing the push mechanism to unlock. In practice, some require that the lock core be rotated when unlocking with a key to unlock, without the need for further push mechanism operation. The above-mentioned existing technologies cannot meet this requirement. Summary of the Invention

[0006] In view of all or part of the above-mentioned technical problems in the prior art, the present invention provides a double-button buckle lock with a compact layout.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A double-button lock with a compact layout is provided, comprising a first lock body and a second lock body, wherein the second lock body comprises a second lock shell and a flip cover, the flip cover is hinged to the second lock shell, and a lock buckle is provided at the bottom of the flip cover;

[0009] The first lock body includes a first lock shell, a lock tongue assembly, a left button, a right button, a key assembly and a password assembly. A lock hole is provided on the top of the first lock shell. The lock tongue assembly is slidably mounted in the first lock shell to clamp a lock buckle inserted through the lock hole.

[0010] The left button and the right button are respectively slidably mounted on the left and right sides of the first lock housing within a preset travel range. The password assembly is mounted between the left button and the right button to limit the two buttons. The restrictions on the left and right buttons can only be released after a correct password is entered into the password assembly. After unlocking, external force is applied inward to the left and right buttons to simultaneously apply force to the lock tongue assembly to release the constraint on the lock buckle.

[0011] The key assembly includes a lock core and a linkage plate. The linkage plate is slidably installed under the password assembly. The lock core and the lock tongue assembly are respectively located on the front and back sides of the password assembly. When the lock core is inserted with the correct key and turned, it can drive the linkage plate to slide. The linkage plate drives the lock tongue assembly to release the constraint on the lock buckle. The driving of the lock tongue assembly by the linkage plate is independent of the driving of the lock tongue assembly by the left button and the right button.

[0012] Specifically, the lock tongue assembly includes a left lock tongue member and a right lock tongue member, the right end portion of the left lock tongue member is provided with a left tongue portion, and the left end portion of the right lock tongue member is provided with a right tongue portion. The left lock tongue member and the right lock tongue member are installed in the first lock shell in an alternating and sliding manner, and the left tongue portion and the right lock tongue portion are arranged facing each other at the aligned lock holes; after the password is unlocked, the left button is pressed to push the left lock tongue member to move to the right, and the right button is pressed to push the right lock tongue member to move to the left, so that the left tongue portion moves to the right and the right tongue portion moves away from each other to the left.

[0013] Specifically, a first spring that applies force to the right on the right lock tongue member and a second spring that applies force to the left on the left on the left are provided in the first lock shell, so that the left and right tongue portions tend to approach each other. When unlocking, the elastic force must be overcome to drive the left and right lock tongue members to slide.

[0014] Specifically, the left locking tongue piece is provided with a clearance groove arranged along the sliding direction, and the right locking tongue piece is slidably embedded in the clearance groove.

[0015] Specifically, the password assembly includes a center rod, a floating plate, multiple password wheels and multiple coding wheels. The multiple coding wheels are coaxially installed in the multiple password wheels one by one and partially extend axially out of the password wheels. The coding wheels rotate together with the corresponding password wheels, and the center rod passes through the multiple coding wheels; the floating plate is installed below the password wheel and cooperates with the coding wheel. A third spring that applies upward force to the floating plate is provided in the first lock shell; in the locked state, the floating plate presses against the left button and the right button to prevent them from sliding; when the password wheel rotates to the correct password, the floating plate moves up to release the restriction on the left button and the right button, and the center rod can move axially, and a fourth spring is sleeved on the outside of the center rod.

[0016] Specifically, the linkage plate is provided with long holes arranged on the left and right sides, and the bottom of the lock core is provided with a linkage protrusion inserted into the long holes; the bottom of the left lock tongue piece and the right lock tongue piece are provided with a follower protrusion, and the linkage plate is provided with a follower inclined surface, and the follower protrusion presses against the follower inclined surface, so that when the linkage plate slides, it drives the left lock tongue piece and the right lock tongue piece in a perpendicular direction.

[0017] Specifically, hinge protrusions are provided on the left and right sides of the flip cover, and a hinge groove is provided on the inner side of the second lock shell, in which the hinge protrusions are embedded; stroke limiting protrusions are provided on the left and right sides of the flip cover, and a stroke limiting groove is provided on the inner side of the second lock shell. After the flip cover is lifted to the maximum angle, the stroke limiting protrusions press against the groove wall of the stroke limiting groove.

[0018] Specifically, a fifth spring is provided in the second lock housing to apply force to the flip cover, so that the flip cover automatically pops up after the restraint on the lock buckle is released.

[0019] Specifically, the sides of the first lock housing and the second lock housing facing each other are provided with plug-in positioning structures.

[0020] Specifically, the top of the first lock shell is concave to form a guide groove, the lock hole is opened at the guide groove, and the peripheral side of the flip cover is adapted to the groove wall of the guide groove.

[0021] Beneficial effects of the present invention:

[0022] Compared to existing locks, the present invention features a compact dual-button lock with a bolt assembly and lock core located on the front and rear sides of a combination assembly. The design of left and right buttons allows for dual-action unlocking. Furthermore, when unlocking with a key, rotating the lock core directly drives the linkage plate to unlock the bolt assembly, eliminating the need for button pressing. This provides greater convenience, speed, and flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be 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 making any creative effort.

[0024] Figure 1 Schematic diagram of the structure of a compact double-button lock in an embodiment, in a locked state.

[0025] Figure 2 FIG1 is a schematic structural diagram of a compact double-button lock in an embodiment after unlocking.

[0026] Figure 3 Schematic diagram of an exploded view of a compact double-button buckle lock in an embodiment.

[0027] Figure 4 Schematic diagram of the internal structure of the first lock body.

[0028] Figure 5 This is a schematic diagram of the internal structure of the first lock body from another angle.

[0029] Figure 6 This is an exploded view of the internal structure of the first lock body.

[0030] Reference numerals:

[0031] Second lock housing 1, hinge slot 11, travel limiting slot 12;

[0032] Flip cover 2, lock 21, hinge protrusion 22, travel limit protrusion 23;

[0033] First lock housing 3, lock hole 31, guide groove 32;

[0034] Lock bolt assembly 4, left lock bolt member 41, left tongue portion 411, clearance groove 412, right lock bolt member 42, right tongue portion 421, follower protrusion 43;

[0035] Left button 51, right button 52;

[0036] Key assembly 6, lock core 61, linkage protrusion 611, linkage plate 62, elongated hole 621, follower inclined surface 622;

[0037] Password assembly 7, center rod 71, floating plate 72, password wheel 73, and code adjustment wheel 74. DETAILED DESCRIPTION

[0038] 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.

[0039] A compact double button lock of this embodiment, such as Figures 1 to 6 As shown, it includes a first lock body and a second lock body. The second lock body includes a second lock shell 1 and a flip cover 2. The flip cover 2 is hinged to the second lock shell 1. An annular lock buckle 21 is provided at the bottom of the flip cover 2.

[0040] The first lock body includes a first lock housing 3, a lock tongue assembly 4, a left button 51, a right button 52, a key assembly 6, and a password assembly 7. A lock hole 31 is provided at the top of the first lock housing 3, and the lock tongue assembly 4 is slidably mounted within the first lock housing 3. When locking, the first and second lock bodies are brought close together, and then the flip cover 2 is rotated downward, so that the lock catch 21 is inserted into the lock hole 31 and is locked by the lock tongue assembly 4.

[0041] The left and right buttons 51, 52 are slidably mounted on the left and right sides of the first lock housing 3, respectively, within a predetermined range of travel. The password assembly 7 is mounted between the left and right buttons 51, 52 to limit their positions. The restrictions on the left and right buttons 51, 52 are released only after a correct password is entered into the password assembly 7. After unlocking, external force pressing the left and right buttons 51, 52 inwards simultaneously applies force to the bolt assembly 4 to release the restraint on the lock catch 21.

[0042] The key assembly 6 includes a lock core 61 and a linkage plate 62. The linkage plate 62 is slidably installed under the password assembly 7. The lock core 61 and the lock tongue assembly 4 are respectively located on the front and rear sides of the password assembly 7. When the lock core 61 is inserted with the correct key and rotated, it can drive the linkage plate 62 to slide. The linkage plate 62 drives the lock tongue assembly 4 to release the constraint on the lock buckle 21. The drive of the lock tongue assembly 4 by the linkage plate 62 is independent of the drive of the lock tongue assembly 4 by the left button 51 and the right button 52, that is, key unlocking and password unlocking are independent and not involved.

[0043] Specifically, the lock tongue assembly 4 includes a left lock tongue piece 41 and a right lock tongue piece 42, the right end portion of the left lock tongue piece 41 is provided with a left tongue portion 411, and the left end portion of the right lock tongue piece 42 is provided with a right tongue portion 421. The left lock tongue piece 41 and the right lock tongue piece 42 are staggered in the left and right directions (partially overlapped) and are slidably installed in the first lock shell 3, and the left tongue portion 411 and the right lock tongue portion are arranged facing each other at the aligned lock hole 31; after the password is unlocked, the left button 51 is pressed to push the left lock tongue piece 41 to move to the right, and the right button 52 is pressed to push the right lock tongue piece 42 to move to the left, so that the left tongue portion 411 moves to the right and the right tongue portion 421 moves away from each other to the left.

[0044] Specifically, a first spring is provided within the first lock housing 3 to apply force to the right latch 42 toward the right, and a second spring to apply force to the left latch 41 toward the left. This ensures that the left and right latch portions 411, 421 maintain a tendency to approach each other. When unlocking, the spring force must be overcome to drive the left and right latches 41, 42 to slide. In this embodiment, one end of each of the first and second springs abuts the left latch 41 and the other end against the right latch 42. This maintains the left latch 41 toward the left and the right latch 42 toward the right, i.e., the left and right latch portions 411, 421 maintain a tendency to approach each other. The corresponding abutments to the left and right buttons 51, 52 maintain an outwardly elastically protruding state.

[0045] Specifically, the left locking tongue member 41 is provided with a clearance groove 412 arranged along the sliding direction, and the right locking tongue member 42 is slidably embedded in the clearance groove 412, making the layout of the two more compact.

[0046] Specifically, the combination assembly 7 includes a center rod 71, a floating plate 72, multiple combination wheels 73, and multiple coding wheels 74. The coding wheels 74 are coaxially mounted within the combination wheels 73, partially extending axially beyond the combination wheels 73. The coding wheels 74 rotate in conjunction with the corresponding combination wheels 73, and the center rod 71 passes through the multiple coding wheels 74. The floating plate 72 is mounted below the combination wheels 73 and cooperates with the coding wheels 74. A third spring is provided within the first lock housing 3 to bias the floating plate 72 upward. In the locked state, the floating plate 72 abuts against the left and right buttons 51, 52, preventing them from sliding. Thus, the left and right buttons 51, 52 cannot be pressed. When the combination wheels 73 rotate to the correct combination, the floating plate 72 moves upward, releasing the restriction on the left and right buttons 51, 52, and the center rod 71 can then move axially. A fourth spring is provided on the outside of the center rod 71. It should be noted that the upward movement of the floating plate 72 and the movement of the center rod 71 when the combination is correct is a prior art feature and will not be elaborated upon here.

[0047] Specifically, the linkage plate 62 is provided with long holes 621 arranged on the left and right sides, and the bottom of the lock core 61 is provided with a linkage protrusion 611 inserted into the long holes 621; the bottom of the left lock tongue piece 41 and the right lock tongue piece 42 is provided with a follower protrusion 43, and the linkage plate 62 is provided with a follower inclined surface 622. The follower protrusion 43 abuts against the follower inclined surface 622, so that when the linkage plate 62 slides, the linkage protrusion 611 is pulled to drive the left lock tongue piece 41 and the right lock tongue piece 42 in a perpendicular direction.

[0048] Specifically, hinge protrusions 22 are provided on the left and right sides of the flip cover 2, and a hinge groove 11 is provided on the inner side of the second lock shell 1, and the hinge protrusion 22 is rotatably embedded in the hinge groove 11; stroke limiting protrusions 23 are provided on the left and right sides of the flip cover 2, and a stroke limiting groove 12 is provided on the inner side of the second lock shell 1. After the flip cover 2 is lifted to the maximum angle, the stroke limiting protrusion 23 presses against the groove wall of the stroke limiting groove 12.

[0049] Specifically, a fifth spring is provided in the second lock housing 1 to apply force to the flip cover 2 so that the flip cover 2 automatically pops up after the restraint on the lock catch 21 is released.

[0050] Specifically, the sides of the first lock housing 3 and the second lock housing 1 facing each other are provided with plug-in positioning structures, specifically the protrusion of the second lock housing 1 and the groove of the first lock housing 3 .

[0051] Specifically, the top of the first lock housing 3 is concave to form a guide groove 32 , the lock hole 31 is opened at the guide groove 32 , and the peripheral side of the flip cover 2 is adapted to the groove wall of the guide groove 32 .

[0052] It should be noted that the springs in this embodiment are all shown in the figure, and their function is to reset.

[0053] 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. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0054] 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 as claimed, but merely represents selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0055] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is typically placed when in use. These terms are intended solely to facilitate and simplify the description of the present invention and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," etc., etc., are used solely for distinction and should not be construed as indicating or implying relative importance.

[0056] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections. They may refer to mechanical connections or electrical connections. They may refer to connections directly or indirectly through an intermediary, or they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

Claims

1. A compact double-button lock, characterized by: The invention comprises a first lock body and a second lock body, wherein the second lock body comprises a second lock shell (1) and a flip cover (2), the flip cover (2) is hinged to the second lock shell (1), and a lock buckle (21) is provided at the bottom of the flip cover (2); The first lock body comprises a first lock shell (3), a lock tongue assembly (4), a left button (51), a right button (52), a key assembly (6) and a password assembly (7); a lock hole (31) is provided on the top of the first lock shell (3); the lock tongue assembly (4) is slidably mounted in the first lock shell (3) to clamp a lock catch (21) inserted through the lock hole (31); The left button (51) and the right button (52) are respectively slidably mounted on the left and right sides of the first lock shell (3) within a preset travel range. The password component (7) is mounted between the left button (51) and the right button (52) to limit the two buttons. Only after the password component (7) inputs a correct password can the restrictions on the left button (51) and the right button (52) be released. After unlocking, external force presses the left button (51) and the right button (52) inward to simultaneously apply force to the lock tongue component (4) to release the constraint on the lock buckle (21). The key assembly (6) includes a lock core (61) and a linkage plate (62). The linkage plate (62) is slidably mounted below the password assembly (7). The lock core (61) and the lock tongue assembly (4) are respectively located at the front and rear sides of the password assembly (7). When the lock core (61) is inserted with a correct key and rotated, the linkage plate (62) can drive the lock tongue assembly (4) to slide. The linkage plate (62) drives the lock tongue assembly (4) to release the constraint on the lock buckle (21). The driving of the lock tongue assembly (4) by the linkage plate (62) is independent of the driving of the lock tongue assembly (4) by the left button (51) and the right button (52).

2. A compact double-button lock according to claim 1, characterized in that: The lock tongue assembly (4) comprises a left lock tongue member (41) and a right lock tongue member (42); the right end portion of the left lock tongue member (41) is provided with a left tongue portion (411), and the left end portion of the right lock tongue member (42) is provided with a right tongue portion (421); the left lock tongue member (41) and the right lock tongue member (42) are installed in a staggered and sliding manner in the first lock housing (3), and the left tongue portion (411) and the right lock tongue portion are arranged facing each other at the aligned lock hole (31); after the password is unlocked, the left button (51) is pressed to push the left lock tongue member (41) to move rightward, while the right button (52) is pressed to push the right lock tongue member (42) to move leftward, so that the left tongue portion (411) moves rightward and the right tongue portion (421) moves away from each other to the left.

3. The compact double-button lock according to claim 2, characterized in that: A first spring for applying force to the right lock tongue member (42) and a second spring for applying force to the left lock tongue member (41) are provided in the first lock housing (3), so that the left lock tongue member (411) and the right lock tongue member (421) are kept in a tendency to approach each other. When unlocking, the elastic force must be overcome to drive the left lock tongue member (41) and the right lock tongue member (42) to slide.

4. The compact double-button lock according to claim 2, characterized in that: The left locking tongue piece (41) is provided with a clearance groove (412) arranged along the sliding direction, and the right locking tongue piece (42) is slidably embedded in the clearance groove (412).

5. The compact double-button lock according to claim 2, characterized in that: The password assembly (7) comprises a central rod (71), a floating plate (72), a plurality of password wheels (73) and a plurality of code adjustment wheels (74). The plurality of code adjustment wheels (74) are coaxially mounted in the plurality of password wheels (73) in a one-to-one correspondence and partially extend axially out of the password wheels (73). The code adjustment wheels (74) rotate together with the corresponding password wheels (73). The central rod (71) passes through the plurality of code adjustment wheels (74). The floating plate (72) is mounted below the password wheel (73) and cooperates with the code adjustment wheel (74). A third spring for applying upward force to the floating plate (72) is provided in the first lock housing (3). In the locked state, the floating plate (72) presses against the left button (51) and the right button (52) to prevent them from sliding. When the password wheel (73) turns to the correct password, the floating plate (72) moves up to release the restrictions on the left button (51) and the right button (52), and the center rod (71) can move axially. The outside of the center rod (71) is covered with a fourth spring.

6. The compact double-button lock according to claim 1, characterized in that: The linkage plate (62) is provided with long strip holes (621) arranged on the left and right sides, and the bottom of the lock core (61) is provided with a linkage protrusion (611) inserted into the long strip holes (621); the bottoms of the left lock tongue piece (41) and the right lock tongue piece (42) are provided with a follower protrusion (43), and the linkage plate (62) is provided with a follower inclined surface (622). The follower protrusion (43) abuts against the follower inclined surface (622), so that when the linkage plate (62) slides, the left lock tongue piece (41) and the right lock tongue piece (42) are driven in a perpendicular direction.

7. The compact double-button lock according to claim 1, characterized in that: The left and right sides of the flip cover (2) are provided with hinge protrusions (22), the inner side of the second lock shell (1) is provided with a hinge groove (11), and the hinge protrusions (22) are embedded in the hinge groove (11); the left and right sides of the flip cover (2) are provided with stroke limiting protrusions (23), the inner side of the second lock shell (1) is provided with a stroke limiting groove (12), and after the flip cover (2) is lifted to the maximum angle, the stroke limiting protrusions (23) press against the groove wall of the stroke limiting groove (12).

8. The compact double-button lock according to claim 7, characterized in that: A fifth spring is provided in the second lock housing (1) for applying force to the flip cover (2), so that the flip cover (2) automatically pops up after the restraint on the lock catch (21) is released.

9. The compact double-button lock according to claim 1, characterized in that: The sides of the first lock housing (3) and the second lock housing (1) facing each other are provided with plug-in positioning structures.

10. The compact double-button lock according to claim 1, characterized in that: The top of the first lock housing (3) is concave to form a guide groove (32), the lock hole (31) is opened at the guide groove (32), and the peripheral side of the flip cover (2) is adapted to the groove wall of the guide groove (32).

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