Swing arm type buckle lock

Abstract

The utility model relates to the technical field of luggage locks, in particular to a swing arm type buckle lock, which comprises a lock catch, the lock catch comprises a buckle seat and two buckle arms, the two buckle arms are arranged on the same side of the buckle seat, the end parts of the two buckle arms are rotatably arranged on the buckle seat, and the buckle seat is provided with a stop groove for limiting the rotation stroke of the buckle arms and a spring for applying force to the buckle arms; the opposite side parts of the two buckling arms are provided with hook parts; the lock main body comprises a lock shell, a lock block and a locking mechanism, one end of the lock shell is open so that the two buckling arms can be inserted, unlocking openings are formed in the two opposite sides of the lock shell, and after the buckling arms are inserted into the lock shell, the hook parts of the buckling arms clamp the unlocking openings in the insertion and extraction direction and are exposed; the lock block is movably installed in the lock shell and used for preventing the two buckle arms from getting close to and being separated from the unlocking opening. After a correct instruction is input into the locking mechanism, the locking block can be driven to relieve blocking of the buckling arm. Compared with the prior art, the installation space can be reduced; and unlocking is smooth by pressing the end part of the buckle arm, so that the use experience of a user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of luggage locks, and particularly relates to a swing-arm type snap lock. Background Art

[0002] The existing snap lock, such as a composite password lock for customs inspection disclosed in a Chinese patent document with the publication number of CN202718482U, includes a snap head, a snap housing and a display block. The rear end of the snap head is a plug-in end, and both sides of the plug-in end are respectively provided with buckle feet; the buckle feet are provided with limiting rods; the bottom of the snap housing is provided with a lock core housing, the lock core housing is provided with a password device, the password device includes a lock piece, the lock piece is provided with a limiting end, the front end of the lock core housing is provided with a lock core, a lock core sleeve and a clutch block, the clutch block includes a connecting block connected to the lock core and a clutch plate, the limiting end is provided with an adjusting block, and the clutch plate is provided with an unlocking inclined plane; the display block is movably connected to the front end of the lock core housing, the display block includes an indicating rod at the upper end and a top block at the lower end, and a notch is provided at the rear end of the top block; the clutch plate is provided with a display inclined plane matched with the notch, and a display through hole matched with the indicating rod is provided on the upper end surface of the snap housing.

[0003] In the above prior art, the buckle feet are slidably mounted on the snap head. Specifically, a long strip-shaped mounting hole is provided at one end, and a limiting nail is inserted through the mounting hole. However, when in use, when a user presses the end of the buckle foot far away from the mounting hole, the buckle foot is subjected to a force in the rotational direction in addition to the force in the sliding direction. Therefore, the buckle foot is prone to generate large friction, which affects the user's feeling of pressing to unlock. Moreover, when the two buckle feet move towards or away from each other as a whole, the snap head needs to have a sufficient volume to provide a sliding space. Therefore, the lateral width of this type of snap lock is relatively large. Summary of the Invention

[0004] In view of the above-mentioned all or part of the technical problems existing in the prior art, the utility model provides a swing-arm type snap lock.

[0005] To achieve the above object, the utility model provides the following technical solutions:

[0006] A swing-arm type snap lock is provided, including:

[0007] A lock buckle, which includes a buckle base and two buckle arms. The two buckle arms are mounted on the same side of the buckle base. The ends of the two buckle arms are rotatably mounted on the buckle base and are arranged facing each other. The buckle base is provided with a stop groove for restricting the rotation stroke of the buckle arms and a spring for applying force to the buckle arms, so that the two buckle arms maintain the potential energy of abutting against the stop groove and moving away from each other; hook parts are provided on the opposite side parts of the two buckle arms;

[0008] The lock body includes a lock shell, a lock block and a locking mechanism. The lock shell is hollow, and one end of the lock shell is open for the insertion of two buckle arms. The lock shell is provided with unlocking ports on two opposite sides. After the buckle arms are inserted into the lock shell, their hooks clamp the unlocking ports in the plugging and unplugging direction and are exposed. The lock block can be movably installed in the lock shell to prevent the two buckle arms from approaching and disengaging from the unlocking ports. The locking mechanism is arranged in the lock shell and is partially exposed. After the correct command is input into the locking mechanism, the lock block can be driven to release the blocking of the buckle arms.

[0009] As a further optional scheme, the locking mechanism includes a password assembly, and the locking block can be installed in the lock shell in a liftable manner. In the locked state, the locking block is aligned with the buckle arm and limited; the lock shell is provided with a spring that exerts force on the locking block to keep the locking block in a floating trend; the password assembly includes multiple password wheels and a coding wheel, the password wheel is rotatably installed in the lock shell and partially exposed, the coding wheels are correspondingly inserted in the password wheels and rotate together, and grooves are provided on the outside of the coding wheel. Only when the grooves of each coding wheel are aligned with the locking block, the locking block floats and staggers the buckle arm.

[0010] As a further optional solution, the locking mechanism also includes a key assembly, which includes a lock core and a swivel seat. An unlocking slope is provided on the outer side of the swivel seat. After the lock core is inserted into the lock core and the correct key is twisted, the swivel seat can be driven to rotate, and the unlocking slope pushes against the lock block to move downward and offset the buckle arm.

[0011] As a further optional solution, a first hinge hole is provided at the end of the buckle arm, and a second hinge hole is provided at the bottom of the buckle seat. The first hinge hole and the second hinge hole are aligned and a pin is inserted into the first hinge hole.

[0012] As a further optional solution, the buckle arm includes an arm body and an extension portion which are perpendicular to each other, and the first hinge hole is located at the junction of the arm body and the extension portion, and the junction is cylindrical.

[0013] As a further optional solution, the extension portion is provided with a spring positioning column, and the extension portion cooperates with the buckle seat to limit the amplitude of the two buckle arms swinging towards each other.

[0014] As a further optional solution, bosses are provided on the sides of the two buckle arms facing each other, and the bosses cooperate with the locking blocks.

[0015] As a further optional solution, a positioning platform is provided on the side of the buckle seat, and the stop groove is arranged in the positioning platform; the outer wall of the positioning platform matches the inner wall of the lock housing.

[0016] As a further optional solution, each buckle arm is an integrated metal structure.

[0017] As a further optional solution, the buckle seat and the lock shell are respectively an integral injection-molded structure.

[0018] Beneficial effects of the utility model:

[0019] A swing - arm type snap lock of the present utility model, compared with the prior art, the buckle arm is rotatably installed on the buckle seat. Compared with the structure where the existing buckle arm slides as a whole, it can reduce the installation space and facilitate more compact assembly. Moreover, the end for pressing the buckle arm to unlock is relatively smooth, improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 FIG. is a schematic structural diagram of a swing - arm type snap lock in the embodiment, in a state of being mutually engaged.

[0021] Figure 2 FIG. is a schematic structural diagram of a swing - arm type snap lock in the embodiment, in a state of being mutually separated.

[0022] Figure 3 FIG. is an exploded view of the lock buckle in the embodiment.

[0023] Figure 4 FIG. is a schematic diagram of a swing - arm type snap lock in the embodiment after hiding part of the lock case.

[0024] Reference numerals:

[0025] Lock buckle 1, buckle seat 11, stop groove 111, positioning platform 112, buckle arm 12, hook portion 121, first hinge hole 122, arm body 123, extension portion 124, spring positioning post 125, boss 126;

[0026] Lock body 2, lock case 21, unlocking port 22, lock block 23;

[0027] Locking mechanism 3, password component 31, password wheel 311, code - adjusting wheel 312, groove 313, key component 32, lock core 321, rotating base 322, unlocking inclined plane 323. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0029] A swing - arm type snap lock in this embodiment, as Figures 1 to 4 shown, includes a lock buckle 1, which includes a buckle seat 11 and two buckle arms 12. The two buckle arms 12 are installed on the same side of the buckle seat 11. The ends of the two buckle arms 12 are rotatably installed on the buckle seat 11 and are arranged facing each other. The buckle seat 11 is provided with a stop groove 111 for restricting the rotation stroke of the buckle arm 12 and a spring (not shown in the figure) for applying force to the buckle arm 12, so that the two buckle arms 12 maintain the potential energy of being against the stop groove 111 and moving away from each other. In this state, the two buckle arms 12 are arranged perpendicular to the buckle seat 11. Hook portions 121 are provided on the opposite sides of the two buckle arms 12.

[0030] The lock body 2 also includes a lock shell 21, a lock block 23 and a locking mechanism 3. The lock shell 21 is hollow, and one end of the lock shell 21 is open for the insertion of two buckle arms 12. The lock shell 21 is provided with unlocking ports 22 on two opposite sides. After the buckle arm 12 is inserted into the lock shell 21, its hook 121 clamps the unlocking port 22 in the plugging and unplugging direction and is exposed; the lock block 23 is movably installed in the lock shell 21 to prevent the two buckle arms 12 from approaching and disengaging from the unlocking port 22; the locking mechanism 3 is arranged in the lock shell 21 and is partially exposed. After the correct instruction is input into the locking mechanism 3, the lock block 23 can be driven to release the blocking of the buckle arm 12.

[0031] In this embodiment, the locking mechanism 3 includes a password assembly 31, a sheet-shaped lock block 23 can be installed in the lock shell 21 in a lifting manner, and the lock block 23 is aligned with the buckle arm 12 to limit the position in the locked state; the lock shell 21 is provided with a spring that applies force to the lock block 23 so that the lock block 23 maintains a floating trend; the password assembly 31 includes multiple password wheels 311 and a code adjustment wheel 312, the password wheel 311 is rotatably installed in the lock shell 21 and partially exposed, the code adjustment wheel 312 is correspondingly sleeved in the password wheel 311 and rotates together, and a groove 313 (concave plane) is provided on the outer side of the code adjustment wheel 312. When unlocking, the password wheel 311 is rotated to the correct password as the correct instruction, and the grooves 313 of each code adjustment wheel 312 are aligned with the lock block 23, the lock block 23 floats and staggers the buckle arm 12, and the buckle arm 12 can be pressed inward to disengage from the unlocking port 22 to achieve unlocking.

[0032] In this embodiment, the locking mechanism 3 further includes a key assembly 32, which includes a lock core 321 and a rotating seat 322. An unlocking inclined surface 323 is provided on the outer side of the rotating seat 322. When unlocking, inserting and twisting the correct key in the lock core 321 as the correct instruction can drive the rotating seat 322 to rotate, and the unlocking inclined surface 323 pushes against the lock block 23 to move downward and stagger the buckle arm 12.

[0033] In this embodiment, a first hinge hole 122 is provided at the end of the buckle arm 12, and a second hinge hole is provided at the bottom of the buckle seat 11. The first hinge hole 122 and the second hinge hole are aligned and a pin is inserted into the first hinge hole to realize the hinged installation of the buckle arm 12. The buckle arm 12 includes an arm body 123 and an extension portion 124 which are perpendicular to each other. The first hinge hole 122 is located at the intersection of the arm body 123 and the extension portion 124, and the intersection is cylindrical. The extension portion 124 is provided with a spring positioning column 125, and the extension portion 124 cooperates with the buckle seat 11 to limit the amplitude of the two buckle arms 12 swinging toward each other.

[0034] In this embodiment, the sides of the two buckle arms 12 facing each other are provided with bosses 126 , and the bosses 126 cooperate with the locking block 23 , that is, in the locked state, the locking block 23 blocks the bosses 126 .

[0035] In this embodiment, a positioning platform 112 is provided on the side of the buckle base 11, and the stop groove 111 is arranged in the positioning platform 112; the outer wall of the positioning platform 112 matches the inner wall of the lock case 21, is closely fitted, has a guiding effect on the insertion, and will not loosen after being buckled together.

[0036] In this embodiment, each buckle arm 12 is a metal integrated structure. The buckle base 11 and the lock case 21 are respectively integrally injection-molded structures.

[0037] In the description of the present invention, obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The components of the embodiments of the present invention described and illustrated herein usually can be arranged and designed in various different configurations.

[0038] Therefore, the above detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present invention.

[0039] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "inside", "above", "below", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the inventive product is usually placed. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", etc. are only used for distinguishing descriptions, and cannot be understood as indicating or implying relative importance.

[0040] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "set", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

Claims

1. A swing-arm type snap lock, characterized in that, include: A lock buckle (1) comprises a buckle seat (11) and two buckle arms (12), wherein the two buckle arms (12) are mounted on the same side of the buckle seat (11), the ends of the two buckle arms (12) are rotatably mounted on the buckle seat (11) and arranged facing each other, the buckle seat (11) is provided with a stop groove (111) for limiting the rotation stroke of the buckle arms (12) and a spring for applying force to the buckle arms (12), so that the two buckle arms (12) maintain the potential energy of pressing against the stop groove (111) and moving away from each other; and hooks (121) are provided on the opposite sides of the two buckle arms (12); The lock body (2) comprises a lock shell (21), a lock block (23) and a locking mechanism (3). The lock shell (21) is hollow, one end of the lock shell (21) is open for two buckle arms (12) to be inserted, and two opposite sides of the lock shell (21) are provided with unlocking openings (22). After the buckle arms (12) are inserted into the lock shell (21), their hooks (121) clamp the unlocking openings (22) in the insertion and extraction direction and are exposed; the lock block (23) is movably installed in the lock shell (21) to prevent the two buckle arms (12) from approaching and disengaging from the unlocking openings (22); the locking mechanism (3) is arranged on the lock shell (21) and partially exposed, and after the locking mechanism (3) inputs a correct instruction, the lock block (23) can be driven to release the blocking of the buckle arms (12).

2. The swing-arm type snap lock according to claim 1, wherein: The locking mechanism (3) comprises a password assembly (31), wherein a lock block (23) is movably mounted in a lock housing (21), and in a locked state, the lock block (23) is aligned with a buckle arm (12) to limit the position; the lock housing (21) is provided with a spring for applying force to the lock block (23) so that the lock block (23) maintains a floating tendency; the password assembly (31) comprises a plurality of password wheels (311) and a code adjustment wheel (312), wherein the password wheel (311) is rotatably mounted in the lock housing (21) and partially exposed, the code adjustment wheels (312) are correspondingly sleeved in the password wheels (311) and rotate together, and grooves (313) are arranged on the outer side of the code adjustment wheels (312), and only when the grooves (313) of each code adjustment wheel (312) are aligned with the lock block (23), the lock block (23) floats and staggers the buckle arm (12).

3. The swing-arm type snap lock according to claim 2, characterized in that: The locking mechanism (3) further comprises a key assembly (32), the key assembly (32) comprising a lock core (321) and a swivel seat (322), an unlocking inclined surface (323) being arranged on the outer side of the swivel seat (322), and after the lock core (321) is inserted into and a correct key is twisted, the swivel seat (322) can be driven to rotate, and the unlocking inclined surface (323) pushes against the lock block (23) to move downward and stagger the buckle arm (12).

4. The swing-arm type snap lock according to claim 1, characterized in that: The end of the buckle arm (12) is provided with a first hinge hole (122), and the bottom of the buckle seat (11) is provided with a second hinge hole. The first hinge hole (122) and the second hinge hole are aligned and a pin is inserted into them.

5. The swing arm type snap lock according to claim 4, characterized in that: The buckle arm (12) comprises an arm body (123) and an extension part (124) which are perpendicular to each other. The first hinge hole (122) is located at the junction of the arm body (123) and the extension part (124), and the junction is cylindrical.

6. The swing-arm type snap lock according to claim 5, characterized in that: The extension part (124) is provided with a spring positioning post (125), and the extension part (124) cooperates with the buckle seat (11) to limit the amplitude of the opposite swinging of the two buckle arms (12).

7. The swing-arm type snap lock according to claim 1, characterized in that: Convex platforms (126) are arranged on the opposite side parts of the two buckle arms (12), and the convex platforms (126) cooperate with the lock block (23).

8. The swing-arm type snap lock according to claim 1, characterized in that: A positioning platform (112) is arranged on the side surface of the buckle seat (11), and a stop groove (111) is arranged in the positioning platform (112); the outer wall of the positioning platform (112) matches the inner wall of the lock shell (21).

9. The swing-arm type snap lock according to claim 1, characterized in that: Each buckle arm (12) is respectively a metal integrated structure.

10. A swing-arm type snap lock according to claim 1, characterized in that: The buckle seat (11) and the lock shell (21) are respectively one-piece injection molding structures.

Images