A compact two-button mortise lock

Abstract

The utility model relates to the technical field of lockset, concretely relates to a double button lock with compact layout, including first lock body and second lock body, and the second lock body includes second lock shell and flip, and the flip is hinged to the second lock shell, and the bottom of the flip is provided with a lock catch. The first lock body includes first lock shell, lock bolt assembly, left button, right button, key assembly and password component, and the lock bolt assembly is slidably installed in the first lock shell. The password component is installed between the left button and the right button, and after inputting the correct password, the left button and the right button can be released from the restriction; after unlocking, the left button and the right button are pressed inward by external force, and the lock bolt assembly is forced to release the constraint of the lock catch. The key assembly includes lock pin and linkage plate, and when the lock pin rotates, the linkage plate can be driven to slide, and the lock bolt assembly is released from the constraint of the lock catch. Compared with the prior art, the utility model can meet the demand of bilateral pressing unlocking, and the rotation of the lock pin can directly drive the linkage plate to drive the lock bolt assembly to unlock, which is convenient and fast, and more flexible to use.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, specifically to a compact double-button latch. Background Technology

[0002] Luggage locks are usually installed on the panel at the closure of the luggage. The lock body on one side of the luggage is fastened to the locking piece on the other side to form a locking fit. The lock body is equipped with an operating part that separates the locking piece from the lock body. This operating part is locked by the combination wheel assembly. It can only be operated by the user when the seal is correct. Due to its convenience of not needing to insert a key, it is widely used by people who travel frequently.

[0003] A type of convex-concave positioning lock, disclosed in Chinese patent document CN219605083U, includes a first body and a second body fixed to the two opening sides of a bag. The first body is provided with a latch, an unlocking component, and a lock body. The latch is movably installed in the lock hole of the first body. The second body is hinged with a rotating component, whose latch can be inserted into the lock hole of the first body and locked by the latch. After the correct command is input into the lock body, the lock body can release the constraint on the unlocking component. Operating the unlocking component can drive the latch to move and release the constraint on the latch. The first body and the second body are connected by a through curved surface. Therefore, after they are connected, there is a limit only in the longitudinal direction perpendicular to the opening and closing seam, but no limit in the lateral direction along the length of the opening and closing seam of the bag. Therefore, the first body and the second body are easier to fit together in the longitudinal direction. In the lateral direction, the limiting groove at the bottom of the first body and the second body is embedded by the rotating component, which makes the operation simpler and improves the user experience.

[0004] For example, Chinese patent document CN107419973B discloses a TSA combination lock, which includes an upper shell and a lower shell. One end of the upper shell has an upper notch, and one end of the lower shell has a lower notch. The upper and lower notches meet to form a buckle cover groove. A buckle hole is provided in the lower notch. A buckle cover that automatically pops up after unlocking is installed on the upper notch. The lower shell contains a left latch structure and a right latch structure for locking the buckle cover and preventing it from automatically popping up. The lower shell also contains a combination wheel device, a lock cylinder device, a swing block that can swing up and down, and a push button for controlling the left and right latch structures to release the buckle cover restriction. The unlocking and unlocking methods are simple, the internal structure is minimal, and installation is convenient.

[0005] The above are all technologies previously developed by the utility model inventor. Further research revealed that the two sets of bolts in the above-mentioned locks need to be brought close together to lock or moved apart to unlock. Therefore, a push mechanism at the end of the lock case is required to drive the bolt movement via a beveled surface. Only a single push mechanism can be implemented, which cannot meet the requirement of double-sided push-to-unlock. Furthermore, whether using a combination lock or a key, unlocking requires pressing the push mechanism after unlocking. In practice, some locks require turning the lock cylinder to unlock with a key, eliminating the need for a push mechanism. The existing technology described above cannot meet this requirement. Utility Model Content

[0006] In view of the above-mentioned technical problems, the present invention provides a compact double-button latch.

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

[0008] A compact double-button latch is provided, comprising a first lock body and a second lock body. The second lock body includes a second lock shell and a flip cover. The flip cover is hinged to the second lock shell, and a latch is provided at the bottom of the flip cover.

[0009] The first lock body includes a first lock shell, a bolt assembly, a left button, a right button, a key assembly, and a combination assembly. The top of the first lock shell is provided with a lock hole, and the bolt assembly is slidably installed inside the first lock shell to lock the latch inserted from the lock hole.

[0010] The left and right buttons are slidably mounted on the left and right sides of the first lock housing within a preset travel range. The password component is installed between the left and right buttons to limit their movement. The restriction on the left and right buttons can only be lifted after the correct password is entered into the password component. After unlocking, external force is applied inward to the left and right buttons to simultaneously exert force on the bolt assembly to release the constraint on the lock.

[0011] The key assembly includes the lock cylinder and the linkage plate. The linkage plate is slidably mounted below the combination component. The lock cylinder and the bolt assembly are located on the front and rear sides of the combination component, respectively. When the correct key is inserted into the lock cylinder and it is turned, it can drive the linkage plate to slide. The linkage plate drives the bolt assembly to release the constraint on the lock latch. The linkage plate's drive on the bolt assembly is independent of the left and right buttons' drive on the bolt assembly.

[0012] Specifically, the latch assembly includes a left latch and a right latch. The right end of the left latch has a left tongue portion, and the left end of the right latch has a right tongue portion. The left and right latches are slidably installed in the first lock housing in an alternating manner, and the left and right tongue portions are arranged facing each other at the aligned lock hole. After the password is unlocked, pressing the left button pushes the left latch to the right, while pressing the right button pushes the right latch to the left, causing the left tongue portion to move to the right and the right tongue portion to move to the left and move away from each other.

[0013] Specifically, the first lock housing is equipped with a first spring that applies force to the right lock tongue and a second spring that applies force to the left lock tongue, so that the left and right lock tongues tend to move closer together. When unlocking, the spring force must be overcome to drive the left and right lock tongues to slide.

[0014] Specifically, the left locking tongue has a clearance groove arranged along the sliding direction, and the right locking tongue slides into the clearance groove.

[0015] Specifically, the combination lock assembly includes a central rod, a floating plate, multiple combination wheels, and multiple adjustment wheels. The adjustment wheels are coaxially mounted one-to-one with each other within the combination wheels and partially extend axially beyond the combination wheels. The adjustment wheels rotate together with their corresponding combination wheels, and the central rod passes through the multiple adjustment wheels. The floating plate is installed below the combination wheels and cooperates with the adjustment wheels. A third spring is provided inside the first lock housing to apply upward force to the floating plate. In the locked state, the floating plate abuts against the left and right buttons to prevent them from sliding. When the combination wheels rotate to the correct combination, the floating plate moves upward to release the restriction on the left and right buttons, and the central rod can then move axially. A fourth spring is sleeved on the outside of the central rod.

[0016] Specifically, the linkage plate has elongated holes arranged on the left and right, and the bottom of the lock core is provided with a linkage protrusion for inserting into the elongated holes; the bottom of the left and right lock tongues is provided with follower protrusions, and the linkage plate is provided with a follower inclined surface. The follower protrusions abut against the follower inclined surface so that when the linkage plate slides, it drives the left and right lock tongues in a perpendicular direction.

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

[0018] Specifically, the second lock housing is equipped with a fifth spring that applies force to the flip cover so that the flip cover automatically pops up after the lock is released from its restraint.

[0019] Specifically, the opposing sides of the first and second lock housings are provided with a positioning structure for interlocking.

[0020] Specifically, the top of the first lock case is recessed to form a guide groove, the lock hole is opened at the guide groove, and the periphery of the flip cover is adapted to the groove wall of the guide groove.

[0021] The beneficial effects of this utility model are:

[0022] This utility model discloses a compact double-button latch. Compared with the prior art, this latch, based on the distribution of the bolt assembly and lock core on the front and rear sides of the combination lock assembly, incorporates left and right buttons to meet the need for bilateral pressing unlocking. Moreover, when unlocking with the key, rotating the lock core directly drives the linkage plate to drive the bolt assembly to unlock, eliminating the need to press buttons, making it convenient, quick, and more flexible to use. Attached Figure Description

[0023] 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.

[0024] Figure 1 This is a schematic diagram of a compact double-button latch in the embodiment, in the locked state.

[0025] Figure 2 This is a schematic diagram of a compact double-button latch in the embodiment after it has been unlocked.

[0026] Figure 3 This is an exploded view of a compact double-button latch as described in the embodiment.

[0027] Figure 4 This is a 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] Figure label:

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

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

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

[0034] Locking tongue assembly 4, left locking tongue piece 41, left tongue part 411, clearance groove 412, right locking tongue piece 42, right tongue part 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, follow-up inclined surface 622;

[0037] The cipher unit 7, the center rod 71, the floating plate 72, the cipher wheel 73, and the code wheel 74. Detailed Implementation

[0038] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0039] This embodiment features a compact double-button latch, 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, and an annular latch 21 is provided at the bottom of the flip cover 2.

[0040] The first lock body includes a first lock shell 3, a bolt assembly 4, a left button 51, a right button 52, a key assembly 6, and a combination lock assembly 7. The top of the first lock shell 3 has a keyhole 31, and the bolt assembly 4 is slidably installed inside the first lock shell 3. When locking, the first lock body and the second lock body are brought close together and spliced, and then the flip cover 2 is rotated downwards, so that the latch 21 is inserted from the keyhole 31 and locked by the bolt assembly 4.

[0041] Left button 51 and right button 52 are slidably mounted on the left and right sides of the first lock housing 3 within a preset travel range, respectively. The combination key 7 is installed between left button 51 and right button 52 to limit their movement. The restriction on left button 51 and right button 52 can only be lifted after the correct combination key 7 is entered. After unlocking, external force presses inward on left button 51 and right button 52, simultaneously applying force to the bolt assembly 4 to release the constraint on the latch 21.

[0042] The key assembly 6 includes a lock cylinder 61 and a linkage plate 62. The linkage plate 62 is slidably mounted below the combination component 7. The lock cylinder 61 and the bolt assembly 4 are located on the front and rear sides of the combination component 7, respectively. When the correct key is inserted into the lock cylinder 61 and it is turned, it can drive the linkage plate 62 to slide. The linkage plate 62 drives the bolt assembly 4 to release the constraint on the latch 21. The drive of the bolt assembly 4 by the linkage plate 62 is independent of the drive of the bolt assembly 4 by the left button 51 and the right button 52. That is, key unlocking and combination unlocking are independent and not related.

[0043] Specifically, the latch assembly 4 includes a left latch 41 and a right latch 42. The right end of the left latch 41 is provided with a left tongue 411, and the left end of the right latch 42 is provided with a right tongue 421. The left latch 41 and the right latch 42 are arranged in an alternating manner (partially overlapping) in the left-right direction and are slidably installed in the first lock housing 3. The left tongue 411 and the right latch are arranged facing each other at the aligned lock hole 31. After the password is unlocked, pressing the left button 51 pushes the left latch 41 to move to the right, while pressing the right button 52 pushes the right latch 42 to move to the left, so that the left tongue 411 moves to the right and the right tongue 421 moves to the left and moves away from each other.

[0044] Specifically, the first lock housing 3 is equipped with a first spring that applies force to the right of the right latch 42 and a second spring that applies force to the left of the left latch 41, so that the left latch 411 and the right latch 421 remain close together. When unlocking, the spring force must be overcome to move the left latch 41 and the right latch 42. In this embodiment, both the first and second springs have one end against the left latch 41 and the other end against the right latch 42, thus keeping the left latch 41 facing left and the right latch 42 facing right, i.e., keeping the left latch 411 and the right latch 421 close together. Correspondingly, the left button 51 and the right button 52 remain in an outwardly elastic protruding state.

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

[0046] Specifically, the combination lock assembly 7 includes a central rod 71, a floating plate 72, multiple combination wheels 73, and multiple adjustment wheels 74. The adjustment wheels 74 are coaxially mounted within the combination wheels 73 and partially extend axially beyond them. The adjustment wheels 74 rotate together with their corresponding combination wheels 73. The central rod 71 passes through the multiple adjustment wheels 74. The floating plate 72 is installed below the combination wheels 73 and cooperates with the adjustment wheels 74. A third spring is provided inside the first lock housing 3 to apply upward force to the floating plate 72. In the locked state, the floating plate 72 abuts against the left button 51 and the right button 52, preventing them from sliding, thus preventing the left button 51 and the right button 52 from being pressed. When the combination wheel 73 rotates to the correct combination, the floating plate 72 moves upward, releasing the restriction on the left button 51 and the right button 52, allowing the central rod 71 to move axially. A fourth spring is sleeved on the outside of the central rod 71. It should be noted that the upward movement of the floating plate 72 and the movement of the central rod 71 when the combination is correct are existing technologies and will not be elaborated upon here.

[0047] Specifically, the linkage plate 62 has elongated holes 621 arranged on the left and right, and the bottom of the lock core 61 is provided with a linkage protrusion 611 for inserting into the elongated holes 621; the bottom of the left lock tongue 41 and the right lock tongue 42 are provided with follower protrusions 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, it pulls the linkage protrusion 611 and drives the left lock tongue 41 and the right lock tongue 42 in a perpendicular direction.

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

[0049] Specifically, the second lock housing 1 is equipped with a fifth spring that applies force to the flip cover 2 so that the flip cover 2 automatically pops up after the restraint on the latch 21 is released.

[0050] Specifically, the first lock shell 3 and the second lock shell 1 have interlocking positioning structures on their opposite sides, specifically a protrusion on the second lock shell 1 and a slot on the first lock shell 3.

[0051] Specifically, the top of the first lock case 3 is recessed to form a guide groove 32, the lock hole 31 is opened at the guide groove 32, and the periphery 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 as shown in the figure, and their function is to reset.

[0053] In the description of this utility model, it is obvious that the described embodiments are only a part of the embodiments of this utility model, and not all of them. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally 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 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 present invention without inventive effort are within the scope of protection of the present invention.

[0055] In the description of this utility model, 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 utility model is in use. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0056] In the description of this utility model, 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. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

Claims

1. A compact double-button latch, characterized in that: 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). A latch (21) is provided at the bottom of the flip cover (2). The first lock body includes a first lock shell (3), a latch assembly (4), a left button (51), a right button (52), a key assembly (6), and a password assembly (7). The top of the first lock shell (3) is provided with a lock hole (31). The latch assembly (4) is slidably installed in the first lock shell (3) to lock the latch (21) inserted from the lock hole (31). The left button (51) and the right button (52) are slidably installed on the left and right sides of the first lock shell (3) within a preset travel range. The password component (7) is installed between the left button (51) and the right button (52) to limit them. Only after the correct password is entered into the password component (7) can the restriction on the left button (51) and the right button (52) be released. After unlocking, the external force presses the left button (51) and the right button (52) inward, which simultaneously applies force to the bolt component (4) to release the constraint on the latch (21). The key assembly (6) includes the lock core (61) and the linkage plate (62). The linkage plate (62) is slidably installed below the combination assembly (7). The lock core (61) and the bolt assembly (4) are located on the front and rear sides of the combination assembly (7), respectively. When the lock core (61) is inserted with the correct key and rotates, it can drive the linkage plate (62) to slide. The linkage plate (62) drives the bolt assembly (4) to release the constraint on the latch (21). The drive of the bolt assembly (4) by the linkage plate (62) is independent of the drive of the bolt assembly (4) by the left button (51) and the right button (52).

2. The compact double-button latch according to claim 1, characterized in that: The latch assembly (4) includes a left latch (41) and a right latch (42). The right end of the left latch (41) is provided with a left tongue (411), and the left end of the right latch (42) is provided with a right tongue (421). The left latch (41) and the right latch (42) are slidably installed in the first lock housing (3) in an alternating manner, and the left tongue (411) and the right tongue 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 latch (41) to move to the right, while the right button (52) pushes the right latch (42) to move to the left, so that the left tongue (411) moves to the right and the right tongue (421) moves to the left and away from each other.

3. A compact double-button latch according to claim 2, characterized in that: The first lock case (3) is provided with a first spring that applies force to the right lock tongue (42) to the right and a second spring that applies force to the left lock tongue (41) to the left, so that the left tongue (411) and the right tongue (421) keep close to each other. When unlocking, the spring force needs to be overcome to drive the left lock tongue (41) and the right lock tongue (42) to slide.

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

5. A compact double-button latch according to claim 2, characterized in that: The combination component (7) includes a center rod (71), a floating plate (72), multiple combination wheels (73) and multiple adjustment wheels (74). The multiple adjustment wheels (74) are coaxially installed in the multiple combination wheels (73) and partially extend axially out of the combination wheels (73). The adjustment wheels (74) rotate together with the corresponding combination wheels (73). The center rod (71) passes through the multiple adjustment wheels (74). The floating plate (72) is installed below the combination wheels (73) and cooperates with the adjustment wheels (74). The first lock housing (3) is provided with a third spring that applies upward force to the floating plate (72). In the locked state, the floating plate (72) abuts 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 restriction on the left button (51) and the right button (52), and the center rod (71) can move axially. The center rod (71) is fitted with a fourth spring on its outer side.

6. A compact double-button latch according to claim 1, characterized in that: The linkage plate (62) has elongated holes (621) arranged on the left and right sides. The bottom of the lock core (61) is provided with a linkage protrusion (611) for inserting into the elongated holes (621). The bottom of the left lock tongue (41) and the right lock tongue (42) are provided with follower protrusions (43). 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, it drives the left lock tongue (41) and the right lock tongue (42) in a perpendicular direction.

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

8. A compact double-button latch according to claim 7, characterized in that: The second lock case (1) is equipped with a fifth spring that applies force to the flip cover (2) so that the flip cover (2) automatically pops up after the restraint on the latch (21) is released.

9. A compact double-button latch according to claim 1, characterized in that: The first lock shell (3) and the second lock shell (1) have a positioning structure that is inserted into each other on their opposite sides.

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

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