Luggage lock structure driven by screw

Abstract

The utility model relates to the technical field of luggage locks, in particular to a screw transmission luggage lock structure which comprises a lock shell, a lock body assembly installed on the lock shell and a buckling assembly used for locking the opening and closing side of a peripheral luggage, and a linkage piece movably installed in the lock shell is arranged between the lock body assembly and the buckling assembly. After the lock body assembly inputs a correct instruction, the lock body assembly can drive the buckling assembly to unlock the two opening and closing sides of the luggage through the linkage piece, the lock body assembly comprises a screw rod body which can be rotationally installed on the lock shell within a preset range, the linkage piece and the screw rod body are in mutual spiral transmission, a knob is arranged on the outer side of the screw rod body, and the knob and the screw rod body can rotate together. Therefore, the linkage piece is driven to move to an unlocking position or a locking position. During use, a user pokes the knob to drive the screw rod body to rotate, and the linkage piece in spiral transmission with the screw rod body can move to drive the buckling assembly to be unlocked. Compared with the prior art, screw transmission between the screw body and the linkage piece is adopted, the use experience is good, and transmission is more compact and stable.

Description

Technical Field

[0001] The utility model relates to the technical field of luggage locks, and in particular to a luggage lock structure driven by a screw rod. Background Art

[0002] A combination lock is a lock that is opened by a password. Due to its convenience, it has been used in various industries, including luggage. The combination lock used for luggage is generally called a luggage lock.

[0003] Most of the existing luggage password locks use a push-twist method to drive the hook to move to release the limit on the zipper or lock hook of the luggage. Since the push-twist method is generally a linear motion, the luggage password lock needs to reserve a moving space for the push-twist method, which makes the overall volume of the luggage password lock and the required installation space larger, increasing the cost of the luggage password lock. For example, the Chinese patent document with the announcement number CN219491999U discloses a central control buckle lock, which includes a password mechanism, a locking component fixed to one of the opening and closing sides of the luggage, and a lock buckle hinged to the other opening and closing side of the luggage. The two locking components and the corresponding lock buckles are respectively located on both sides of the length direction of the password mechanism. The locking component is provided with a lock tongue, and the lock tongue and the lock buckle are clamped together to achieve locking; a transmission member is provided between each locking component and the password mechanism, and the lock tongue is fixed to the transmission member. The password mechanism includes a password wheel group, a floating plate and two sets of push-twists arranged on both sides of the password wheel group, and the push-twists and the transmission parts are linked to each other; when the password is correct, the floating plate floats to release the restriction on the push-twists, and the two sets of push-twists approach each other toward the password mechanism to drive the transmission part and the lock tongue to slide, thereby releasing the restriction on the lock buckle to achieve unlocking. Compared with the prior art, the structure is simple, and the sliding mode of the transmission part and the lock tongue makes the structure more stable, the safety performance is high, and the lock has a long service life.

[0004] For another example, a Chinese patent document with publication number CN111155849A discloses a central control buckle lock, comprising a shell, a movable block installed in the shell, an unlocking member capable of driving the movable block to move, a locking member capable of limiting the movement of the movable block, a locking mechanism capable of driving the locking member to move and allowing the locking member to release the restriction on the movable block, and a locking hook connecting the two end portions of the movable block and respectively locked with the lock buckle; the toggle portion of the unlocking member is convenient for manual upward pulling or manual downward pressing, and the clamping portion is connected to the toggle portion. When pulled up and pressed downward, the toggle portion and the clamping portion are hinged to the shell with the connection point between the toggle portion and the clamping portion as the hinge point, and the clamping portion drives the movable block to move to achieve unlocking. The provision of the unlocking member makes the operation more labor-saving and more convenient.

[0005] Later, a knob-type rotary switch appeared, which could unlock and lock the luggage lock by turning the knob in a similar way to twisting a bottle cap, driving the internal structure to move linearly. This type of knob requires the user to use more than two fingers to operate, which is inconvenient, and the transmission structure is relatively complex, which restricts the manufacturing cost of luggage locks. Summary of the invention

[0006] In view of the above technical problems in the prior art, the utility model provides a luggage lock structure driven by a screw.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A screw-driven luggage lock structure is provided, comprising a lock shell, a lock body assembly installed on the lock shell, and a snap-fit ​​assembly for locking the opening and closing sides of the peripheral luggage, a linkage member movably installed in the lock shell is provided between the lock body assembly and the snap-fit ​​assembly, and after the lock body assembly inputs a correct instruction, the snap-fit ​​assembly can be driven by the linkage member to release the lock on the two opening and closing sides of the luggage via the linkage member, and its characteristics are: the lock body assembly comprises a screw body rotatably installed on the lock shell within a preset range, the linkage member and the screw body are spirally driven with each other, a knob is provided on the outer side of the screw body, and the knob and the screw body can rotate together to drive the linkage member to move to an unlocking position or a locking position.

[0009] As a further optional solution, a swivel seat is provided in the lock housing, and mutually nested annular protrusions are provided between the swivel seat and the two ends of the screw body, so that the two ends of the screw body can be rotatably installed on different swivel seats.

[0010] As a further optional solution, a thread groove is integrally formed on the outer side of the screw body, the linkage piece is plate-shaped and slidably installed in the lock housing, and the linkage piece is provided with a plurality of oblique protrusions adapted to the thread groove so that the screw body rotates and drives the linkage piece to slide linearly.

[0011] As a further optional solution, the knob is fixedly connected to the screw body, and the inner wall of the knob is in an arc shape surrounding the screw body, and the knob is exposed outside the lock shell for operation.

[0012] As a further optional solution, the lock housing is provided with a stop assembly for stopping the knob, the screw body and the linkage member at an unlocking position, and the stop assembly can only be released by external force to operate the stop assembly.

[0013] As a further optional scheme, the stop assembly includes an insertion rod and a twist knob slidably mounted on the screw body, the lock housing is provided with a slot, and the insertion rod is connected to an elastic part so that the insertion rod can be elastically embedded in the slot in the unlocked state, thereby limiting the rotational movement; external force operation of the twist knob can drive the insertion rod out of the slot to release the restriction on the rotation.

[0014] As a further optional solution, the stop assembly further includes an inner carrier, which is fixed to the screw body and the insertion rod is slidably mounted on the inner carrier.

[0015] As a further optional solution, the insertion rod includes a rod body and a limiting protrusion, the limiting protrusion cooperates with the slot, and a matching inclined surface is provided between the end of the rod body and the twist knob, so that when the twist knob moves relative to the rotating knob, the insertion rod is pushed to move via the matching inclined surface.

[0016] As a further optional solution, the lock housing is fixed with an embedded seat, and the slot is arranged at the embedded seat.

[0017] As a further optional scheme, the lock body assembly also includes a key lock cylinder and an unlocking block located at the bottom of the key lock cylinder, the unlocking block can limit the movement of the linkage part, and when the key is inserted into the correct key and the unlocking block is rotated as the correct instruction, the limit of the linkage part by the unlocking block can be released; the lock body assembly also includes a password wheel group and a center shaft passed through the password wheel group, the center shaft can limit the movement of the linkage part, and after the password wheel group is rotated to the correct password as the correct instruction, the center shaft can move axially to release the limit on the linkage part.

[0018] Beneficial effects of the utility model:

[0019] The utility model is a screw-driven luggage lock structure. When in use, the user turns the knob to drive the screw body to rotate, and the linkage member that is screw-driven with it can move, thereby driving the buckle assembly to unlock. Compared with the prior art, the use of the screw body and the linkage member has a good user experience and a more compact and stable transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a screw-driven luggage lock structure in an embodiment.

[0021] Figure 2 Schematic diagram of the internal structure of a screw-driven luggage lock structure in an embodiment.

[0022] Figure 3 It is an exploded view of the internal structure of a screw-driven luggage lock structure in the embodiment.

[0023] Figure 4 It is a cross-sectional view of the internal structure of a screw-driven luggage lock structure in an embodiment.

[0024] Figure 5 It is an exploded view of a screw-driven luggage lock structure in an embodiment.

[0025] Reference numerals:

[0026] Lock housing 1, rotating seat 11, annular protrusion 12, embedded seat 13, slot 131;

[0027] Lock body assembly 2, key lock cylinder 21, unlocking block 22, password wheel assembly 23, central axis 24, screw body 25, thread groove 251, knob 26, stop assembly 27, plug rod 271, rod body 2711, limit protrusion 2712, twist 272, inner carrier 28;

[0028] Fastening component 3;

[0029] Linkage member 4 , long groove 41 , oblique protrusion 42 . DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0031] A screw-driven luggage lock structure of this embodiment, such as Figures 1 to 5 As shown, it comprises a lock case 1, a lock body assembly 2 mounted on the lock case 1, and a snap assembly 3 for locking the opening and closing sides of the peripheral luggage. A linkage member 4 movably mounted in the lock case 1 is provided between the lock body assembly 2 and the snap assembly 3. After the lock body assembly 2 inputs a correct instruction, the snap assembly 3 can be driven by the linkage member 4 to release the lock on the two opening and closing sides of the luggage. The linkage member 4 is locked in this way: the lock body assembly 2 comprises a key lock cylinder 21 and an unlocking block 22 located at the bottom of the key lock cylinder 21. The unlocking block 22 is in the shape of a long strip. The linkage member 4 is provided with a long groove 41 for the unlocking block 22 to be embedded. The end of the unlocking block 22 along the length direction can support the linkage member 4 to limit its movement. When the key is inserted into the correct key and the unlocking block 22 is rotated as the correct instruction, the length direction of the unlocking block 22 is staggered with the linkage member 4 to free up space for linkage movement, thereby releasing the limit of the unlocking block 22 on the linkage member 4. The lock body assembly 2 also includes a password wheel group 23 and a center shaft 24 passing through the password wheel group 23. The center shaft 24 supports the unlocking block 22 and can limit the movement of the unlocking block 22 and the linkage 4. The hole that cooperates with the bottom of the unlocking block 22 and the key lock cylinder 21 is a long hole. After the password wheel group 23 turns to the correct password as the correct instruction, the center shaft 24 can move axially to release the limit on the unlocking block 22 and the linkage 4. After the key or password is unlocked, manual operation is required to move the linkage 4 and then drive the snap-fit ​​assembly 3. The focus of this embodiment is not on the snap-fit ​​assembly 3, so it will not be elaborated. The core improvement lies in how to drive the linkage 4, which is described in detail below:

[0032] The lock body assembly 2 also includes a screw body 25 that can be rotatably mounted on the lock housing 1 within a preset range, the linkage member 4 and the screw body 25 are mutually screw-driven, and a knob 26 is provided on the outer side of the screw body 25, and the knob 26 and the screw body 25 can rotate together to drive the linkage member 4 to move to the unlocking position or the locking position. Specifically, a rotating seat 11 is provided in the lock housing 1, and mutually nested annular protrusions 12 are provided between the rotating seat 11 and the two ends of the screw body 25, so that the two ends of the screw body 25 can be rotatably mounted on different rotating seats 11.

[0033] When in use, the user turns the knob 26 to drive the screw body 25 to rotate, and the linkage member 4 that is in spiral transmission with it can move, thereby driving the buckle assembly 3 to unlock. Compared with the prior art, the use of the spiral transmission between the screw body 25 and the linkage member 5 has a good user experience and a more compact and stable transmission. In addition, the knob 26 is easy to operate with a single finger, and of course it can also be operated with more than two fingers in practice without limitation.

[0034] Specifically, the outer side of the screw body 25 is integrally formed with a thread groove 251, the linkage member 4 is plate-shaped and slidably installed in the lock housing 1, and the linkage member 4 is provided with a plurality of oblique protrusions 42 adapted to the thread groove 251, so that the screw body 25 rotates to drive the linkage member 4 to slide linearly. Since the screw body 25 only needs to rotate within a relatively small angle range when switching between unlocking and locking, the thread groove 251 only needs to be partially arranged around the circumference of the screw body 25. Of course, the thread groove 251 can be arranged around the entire circumference of the screw body 25 according to other requirements.

[0035] In this embodiment, the knob 26 is fixedly connected to the screw body 25 by screws, and the inner wall of the knob 26 is in an arc shape surrounding the screw body 25, and the knob 26 is exposed outside the lock housing 1 for operation.

[0036] In this embodiment, in order to keep the linkage member 4 in the unlocked position, the lock housing 1 is provided with a stop assembly 27 for stopping the knob 26, the screw body 25 and the linkage member 4 in the unlocked position. The stop assembly 27 can only be released after an external force is applied to the stop assembly 27, and the knob 26 can be operated to rotate to the locked position.

[0037] Specifically, the stop assembly 27 includes an insertion rod 271 and a twist knob 272 slidably mounted on the screw body 25. The lock housing 1 is provided with a slot 131. The insertion rod 271 is connected to an elastic member (not shown in the figure) so that the insertion rod 271 can be elastically embedded in the slot 131 in the unlocked state, thereby limiting the rotation of the knob 26. The twist knob 272 can be driven by an external force to disengage the insertion rod 271 from the slot 131 to release the restriction on the knob 26. The stop assembly 27 also includes an inner carrier 28, which is fixed to the screw body 25. The insertion rod 271 is slidably mounted on the inner carrier 28. The inner carrier 28 is provided with a guide groove for the insertion rod 271 to move in a directional manner. Specifically, the insertion rod 271 includes a rod body 2711 and a limiting protrusion 2712. The limiting protrusion 2712 cooperates with the slot 131. The end of the rod body 2711 is a V-shaped protrusion. The twisting member 272 is provided with a V-shaped groove, thereby forming a matching inclined surface between each other, so that when the twisting member 272 moves relative to the knob 26, the insertion rod 271 is pushed to move via the matching inclined surface. Of course, the matching inclined surface formed in practice is not necessarily V-shaped, and can be changed to a single inclined surface, the purpose is to make the moving direction of the twisting member 272 perpendicular to the moving direction of the insertion rod 271. Specifically, the lock housing 1 is fixed with an embedded seat 13, and the slot 131 is provided at the embedded seat 13.

[0038] 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.

[0039] 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.

[0040] 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 invented 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.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "disposed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A screw-driven luggage lock structure, comprising a lock housing (1), a lock body assembly (2) mounted on the lock housing (1), and a buckle assembly (3) for locking the opening and closing sides of the peripheral luggage, a linkage member (4) movably mounted in the lock housing (1) is provided between the lock body assembly (2) and the buckle assembly (3), and after the lock body assembly (2) inputs a correct instruction, the buckle assembly (3) can be driven by the linkage member (4) to release the lock on the two opening and closing sides of the luggage, wherein: The lock body assembly (2) comprises a screw body (25) which is rotatably mounted on the lock housing (1) within a preset range, the linkage member (4) and the screw body (25) are mutually screw-driven, a knob (26) is provided on the outer side of the screw body (25), and the knob (26) and the screw body (25) can rotate together to drive the linkage member (4) to move to an unlocking position or a locking position.

2. The screw-driven luggage lock structure according to claim 1 is characterized in that: A rotating seat (11) is arranged in the lock housing (1), and mutually nested annular protrusions (12) are arranged between the rotating seat (11) and the two ends of the screw body (25), so that the two ends of the screw body (25) can be rotatably installed on different rotating seats (11).

3. The screw-driven luggage lock structure according to claim 1 is characterized in that: A thread groove (251) is integrally formed on the outer side of the screw body (25); the linkage member (4) is plate-shaped and slidably installed in the lock housing (1); the linkage member (4) is provided with a plurality of oblique protrusions (42) adapted to the thread groove (251), so that the screw body (25) rotates to drive the linkage member (4) to slide linearly.

4. The screw-driven luggage lock structure according to claim 1 is characterized in that: The knob (26) is fixedly connected to the screw body (25), and the inner wall of the knob (26) is in an arc shape and surrounds the screw body (25). The knob (26) is exposed outside the lock housing (1) for operation.

5. The screw-driven luggage lock structure according to claim 1 is characterized in that: The lock housing (1) is provided with a stop assembly (27) for stopping the knob (26), the screw body (25) and the linkage member (4) at an unlocking position. The stop assembly (27) can only be released by external force operation.

6. The screw-driven luggage lock structure according to claim 5 is characterized in that: The stop assembly (27) includes an insertion rod (271) and a twist knob (272) slidably mounted on the screw body (25); the lock housing (1) is provided with a slot (131); the insertion rod (271) is connected with an elastic member so that the insertion rod (271) can be elastically embedded in the slot (131) in the unlocked state, thereby limiting the rotation of the knob (26); external force operation of the twist knob (272) can drive the insertion rod (271) to disengage from the slot (131) to release the restriction on the knob (26).

7. The screw-driven luggage lock structure according to claim 6 is characterized in that: The stop assembly (27) further comprises an inner carrier (28), wherein the inner carrier (28) is fixed to the screw body (25), and the insertion rod (271) is slidably mounted on the inner carrier (28).

8. The screw-driven luggage lock structure according to claim 6 is characterized in that: The insertion rod (271) includes a rod body (2711) and a limiting protrusion (2712), the limiting protrusion (2712) cooperates with the slot (131), and a matching inclined surface is provided between the end of the rod body (2711) and the twisting wheel (272), so that when the twisting wheel (272) moves relative to the rotating knob (26), the insertion rod (271) is pushed to move via the matching inclined surface.

9. A screw-driven luggage lock structure according to any one of claims 6 to 8, characterized in that: An embedded seat (13) is fixed to the lock housing (1), and a slot (131) is arranged at the embedded seat (13).

10. The screw-driven luggage lock structure according to claim 1, characterized in that: The lock body assembly (2) further comprises a key lock cylinder (21) and an unlocking block (22) located at the bottom of the key lock cylinder (21); the unlocking block (22) can limit the movement of the linkage member (4); when the key is inserted into a correct key and the unlocking block (22) is rotated as the correct instruction, the limit imposed on the linkage member (4) by the unlocking block (22) can be released; the lock body assembly (2) further comprises a password wheel group (23) and a central shaft (24) passing through the password wheel group (23); the central shaft (24) can limit the movement of the linkage member (4); when the password wheel group (23) is rotated to a correct password as the correct instruction, the central shaft (24) can move axially to release the limit imposed on the linkage member (4).

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