A compact transmission bag lock
By designing a compact and efficient luggage lock, and utilizing the linkage between the combination lock and key components to disengage the stop piece from the lock slot, the problem of large structure and loose transmission in existing luggage locks is solved, resulting in a more convenient and secure unlocking experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN JINGYU IND
- Filing Date
- 2025-07-21
- Publication Date
- 2026-07-03
AI Technical Summary
Existing bag locks are too large and their transmission mechanisms are not compact enough, which affects both portability and security.
A compact transmission bag lock was designed. Through the linkage of the combination component and the key component, the stop component is driven to disengage from the lock groove to achieve the lifting and unlocking of the lock shell. The transmission structure is more compact and stable.
The lock housing is raised as a whole, making it easier to unlock, and the transmission structure is more compact and stable, improving the portability and security of the bags.
Smart Images

Figure CN224452466U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lock technology, specifically to a compact transmission bag buckle lock. Background Technology
[0002] With the increasing demand for luggage for work, travel, and business trips, various types of bags have become increasingly important in people's lives. People often put valuables and documents in their bags for easy carrying. Therefore, the security and theft prevention of bags are receiving more and more attention, and bag locks have become an indispensable component of bags.
[0003] In existing technology, bag locks include a locking assembly, which includes a locking hook and a locking buckle respectively installed on the two opening sides of the bag, which interlock and lock together. Alternatively, the locking assembly can lock the zipper pull. Bag locks also include an operating component (which can be replaced by a push, button, knob, etc.), a locking mechanism, and a transmission component. The locking mechanism can be a combination lock, key lock cylinder, or NFC, etc. The operating component is released only after the locking mechanism is unlocked with a combination, or after the correct key is inserted and turned, or after near-field electronic sensing is triggered. The operating component then drives the locking hook to rotate or slide via the transmission component, thereby releasing the locking from the locking buckle or releasing the restriction on the zipper pull, thus unlocking the bag.
[0004] Chinese patent document CN217269418U discloses a thin-film lock, comprising a lock body hinged to one opening side of an outer bag and a lock hook fixed to the other opening side of the outer bag. The lock body includes a combination wheel assembly, a limiting block, and a push block, which are slidably arranged. The push block has a latch adapted to the lock hook. One end of the limiting block abuts against the push block. The combination wheel assembly includes a combination roller and a floating plate for abutting the other end of the limiting block. After the correct combination is entered on the combination roller, the floating plate can float to offset the limiting block, allowing the limiting block and the push block to slide and unlock. The lock body also includes a key cylinder, which, after the correct key is inserted, can drive the limiting block to rotate and offset the push block to unlock. Both the combination wheel assembly and the key cylinder control the limiting block to achieve locking and unlocking, resulting in a simple structure that allows the overall size of the lock to be made thinner.
[0005] The inventors discovered that this type of latch could be further optimized. Summary of the Invention
[0006] In view of the above-mentioned technical problems, the present invention provides a compact transmission bag buckle lock.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A compact transmission bag lock is provided, including a first base and a second base installed on the two opening sides of the outer bag, and a lock body. The lock body includes a lock shell, a push knob, a stop member, a combination component and a key component. The lock shell is provided with a latch, and the first base is provided with a lock hook. The lock hook engages with the latch to achieve locking.
[0009] The second base is hinged to a swing seat, and the lock case is hinged to the swing seat so that the lock case can be raised relative to the second base, thereby causing the lock hook and the lock latch to separate from the lock.
[0010] The stop is slidably installed inside the lock housing, and the second base is provided with a lock groove. The stop is inserted into the lock groove to limit the lifting of the lock housing.
[0011] The push button is slidably installed in the lock case and partially exposed; the keypad component limits the push button, and the limit on the push button can be released after the correct keypad component is entered; external force pressing the button can drive the stop part to disengage from the lock groove in the vertical direction.
[0012] The key assembly includes a lock cylinder and a linkage plate. The linkage plate is slidably installed inside the lock housing. When the correct key is inserted into the lock cylinder and turned, it can drive the linkage plate to slide, thereby driving the stop member to disengage from the lock groove in a vertical direction.
[0013] Specifically, the combination component includes a center rod, multiple combination wheels, and multiple switching wheels. The combination wheels are rotatably mounted on the lock case and partially exposed. The multiple switching wheels are coaxially mounted inside the multiple combination wheels, and the switching wheels rotate together with their corresponding combination wheels. The center rod passes through the multiple switching wheels and is held against the pusher. Only after the multiple combination wheels have rotated to the correct combination can the center rod move axially.
[0014] Specifically, the linkage plate is located below multiple combination wheels, with push knobs, combination components, and lock cylinders arranged in sequence.
[0015] Specifically, the two stop members are arranged opposite each other, and the locking grooves are provided on both sides of the second base. The push button and the two stop members, as well as the linkage plate and the two stop members, are respectively engaged by inclined surfaces, so that when the push button is pressed or the linkage plate slides, the two stop members can be moved closer together and disengaged from the locking grooves at the same time.
[0016] Specifically, a return spring is provided between the two stop members to keep the two stop members inclined to be inserted into the locking groove; the push torque and the linkage plate need to overcome the force of the return spring to drive the stop members.
[0017] Specifically, the swing base includes a first swing rod, a connecting rod, and a second swing rod. The two ends of the connecting rod are respectively connected to the middle parts of the first and second swing rods. The lower ends of the first and second swing rods are hinged to the second base, and the upper ends of the first and second swing rods are hinged to the lock housing.
[0018] Specifically, the top of the second base is provided with a clearance groove, and the connecting rod is embedded in the clearance groove when the lock body is not raised.
[0019] Specifically, the top of the second base is integrally formed with a boss, and the locking groove is formed on the inner side of the boss; the bottom of the lock shell is provided with a positioning groove, and the boss is inserted into the positioning groove when the lock body is not raised.
[0020] Specifically, the two locking hooks are integrally formed on the top of the first base, and the lock housing is integrally formed with the locking buckle portion corresponding to the two locking hooks.
[0021] Specifically, the lock case includes a base plate, a case body, and a front panel. The base plate and the case body form a receiving cavity, and the front panel is snapped onto the top of the case body.
[0022] The beneficial effects of this utility model are:
[0023] This utility model discloses a compact transmission bag lock. Compared with the prior art, when unlocking, the entire lock body is raised, which separates the lock shell's latch from the first base's hook, making it easier to unlock. Furthermore, the push torque and linkage plate can respectively drive the stop piece to disengage from the lock groove in the vertical direction to unlock, making the transmission structure more compact and stable. Attached Figure Description
[0024] 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.
[0025] Figure 1 This is a schematic diagram of a compact transmission bag lock as shown in the embodiment.
[0026] Figure 2 This is an exploded view of a compact transmission bag latch in one embodiment.
[0027] Figure 3 This is a schematic diagram of the internal structure of a compact transmission bag lock in the locked state, as shown in the embodiment.
[0028] Figure 4 This is a schematic diagram of the unlocked state of a compact transmission bag latch in one of the embodiments.
[0029] Figure 5 This is a cross-sectional view of a compact transmission bag latch in one embodiment.
[0030] Figure label:
[0031] First base 1, locking hook 11;
[0032] Second base 2, locking groove 21, clearance groove 22, boss 23;
[0033] Lock housing 3, latch part 31, positioning groove 32, base plate 33, housing body 34, front panel 35;
[0034] Push knob 4;
[0035] Stop component 5;
[0036] 6. Code component; 61. Center rod; 62. Code wheel; 63. Adjustment wheel;
[0037] Key assembly 7, lock core 71, linkage plate 72;
[0038] 8. Pendulum seat, 81. First pendulum rod, 82. Connecting rod, 83. Detailed Implementation
[0039] 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.
[0040] This embodiment presents a compact transmission bag lock, such as... Figures 1 to 5 As shown, the device includes a first base 1 and a second base 2 installed on the two opening sides of the outer casing, and a lock body. The lock body includes a lock shell 3, a push knob 4, a stop member 5, a combination lock assembly 6, and a key assembly 7. The lock shell 3 is provided with a latch 31, and the first base 1 is provided with a lock hook 11. The lock hook 11 engages with the latch 31 to achieve locking. The two lock hooks 11 are integrally formed on the top of the first base 1, and the lock shell 3 is integrally formed with the latch 31 corresponding to the two lock hooks 11.
[0041] In this embodiment, the second base 2 is hinged to a swing seat 8, and the lock housing 3 is hinged to the swing seat 8 so that the lock housing 3 can be raised relative to the second base 2, thereby separating the lock hook 11 from the lock buckle 31. The swing seat 8 includes a first swing rod 81, a connecting rod 82, and a second swing rod 83. The two ends of the connecting rod 82 are respectively connected to the middle parts of the first swing rod 81 and the second swing rod 83. The lower ends of the first swing rod 81 and the second swing rod 83 are hinged to the second base 2, and the upper ends of the first swing rod 81 and the second swing rod 83 are hinged to the lock housing 3.
[0042] The stop member 5 is slidably installed inside the lock housing 3. The second base 2 is provided with a lock groove 21. The stop member 5 is inserted into the lock groove 21 to limit the lifting of the lock housing 3. When the stop member 5 retracts, the lock housing 3 is no longer restricted by the second base 2.
[0043] The push knob 4 is slidably installed in the lock housing 3 and partially exposed for operation. The combination component 6 limits the push knob 4. After the correct combination is entered into the combination component 6, the restriction on the push knob 4 can be released. Pressing the button with external force can drive the stop 5 to disengage from the lock groove 21 in a vertical direction. Specifically, the combination component 6 includes a central rod 61, multiple combination wheels 62, and multiple adjustment wheels 63. The combination wheels 62 are rotatably installed in the lock housing 3 and partially exposed. The multiple adjustment wheels 63 are coaxially installed within the multiple combination wheels 62, and the adjustment wheels 63 rotate together with their corresponding combination wheels 62. The central rod 61 passes through the multiple adjustment wheels 63 and presses against the push knob 4. Only after the multiple combination wheels 62 have rotated to the correct combination can the central rod 61 move axially to release the restriction on the push knob 4. The principle of the combination component 6 is existing conventional technology and will not be elaborated here.
[0044] The key assembly 7 includes a lock cylinder 71 and a linkage plate 72. The linkage plate is slidably installed inside the lock housing 3. After the correct key is inserted into the lock cylinder 71 and it is turned, it can drive the linkage plate 72 to slide, thereby driving the stop member 5 to disengage from the lock groove 21 in a vertical direction. Specifically, the linkage plate 72 is located below multiple combination wheels 62, and the push knob 4, combination assembly 6, and lock cylinder 71 are arranged in sequence.
[0045] In this embodiment, the two stop members 5 are arranged opposite to each other, and the locking grooves 21 are respectively provided on the opposite sides of the second base 2. The push knob 4 and the two stop members 5, as well as the linkage plate 72 and the two stop members 5, are respectively connected by inclined surfaces so that when the push knob 4 or the linkage plate 72 is pressed or slid, the two stop members 5 can be moved closer to each other and disengaged from the locking grooves 21.
[0046] Specifically, a return spring (not shown in the figure) is provided between the two stop members 5 to keep the two stop members 5 inclined to be inserted into the locking groove 21; the push torque 4 and the linkage plate 72 need to overcome the force of the return spring to drive the stop members 5.
[0047] In this embodiment, a clearance groove 22 is provided on the top of the second base 2. When the lock body is not raised, the connecting rod 82 is embedded in the clearance groove 22, so that the lock body can approach the second base 2.
[0048] Specifically, the top of the second base has two protrusions 23 integrally formed, and the lock groove 21 is formed on the inner side of the protrusions 23; the bottom of the lock shell 3 is provided with a positioning groove 32. When the lock body is not raised, the protrusions 23 are inserted into the positioning groove 32, which plays a guiding role in the descent and reset of the lock body.
[0049] In this embodiment, the lock case 3 includes a base plate 33, a case body 34, and a panel 35. The base plate 33 and the case body 34 form a receiving cavity, and the panel 35 is snapped onto the top of the case body 34 for easy assembly.
[0050] 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.
[0051] 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.
[0052] 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 is in use. They are used 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. Furthermore, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0053] 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 transmission case bag lock characterized by: It includes a first base (1) and a second base (2) installed on the two opening sides of the outer bag, and also includes a lock body. The lock body includes a lock shell (3), a push knob (4), a stop member (5), a combination component (6) and a key component (7). The lock shell (3) is provided with a latch (31), and the first base (1) is provided with a lock hook (11). The lock hook (11) engages with the latch (31) to achieve locking. The second base (2) is hinged to a swing seat (8), and the lock shell (3) is hinged to the swing seat (8) so that the lock shell (3) can be raised relative to the second base (2), thereby the lock hook (11) and the lock buckle (31) separate from the lock; The stop (5) is slidably installed inside the lock housing (3), and the second base (2) is provided with a lock groove (21). The stop (5) is inserted into the lock groove (21) to limit the lifting of the lock housing (3). The push button (4) is slidably installed in the lock case (3) and partially exposed; the password component (6) limits the push button (4), and can release the limitation on the push button (4) after the correct password is entered into the password component (6); the external force can push the stop (5) to disengage from the lock groove (21) in the vertical direction. The key assembly (7) includes a lock core (71) and a linkage plate (72). The linkage is slidably installed inside the lock housing (3). After the lock core (71) is inserted with the correct key and rotated, it can drive the linkage plate (72) to slide, thereby driving the stop (5) to disengage from the lock groove (21) in the vertical direction.
2. A compact transmission luggage lock according to claim 1, characterized in that: The combination component (6) includes a center rod (61), multiple combination wheels (62) and multiple dialing wheels (63). The combination wheels (62) are rotatably mounted on the lock housing (3) and partially exposed. The multiple dialing wheels (63) are coaxially mounted in the multiple combination wheels (62) in a one-to-one correspondence. The dialing wheels (63) rotate together with the corresponding combination wheels (62). The center rod (61) passes through the multiple dialing wheels (63) and abuts against the push knob (4). The center rod (61) can only move axially after the multiple combination wheels (62) have turned to the correct combination.
3. The compact transmission luggage lock according to claim 1, wherein: The linkage plate (72) is located below multiple combination wheels (62), and the push knob (4), combination components (6) and lock core (71) are arranged in sequence.
4. The compact transmission luggage lock according to claim 1, wherein: The two stop members (5) are arranged opposite each other. The two sides of the second base (2) are respectively provided with the locking groove (21). The push button (4) and the two stop members (5) are respectively connected by inclined surfaces, so that when the push button (4) is pressed or the linkage plate (72) slides, the two stop members (5) can be driven to move closer to each other and disengage from the locking groove (21).
5. A compact transmission luggage lock according to claim 4, wherein: A return spring is provided between the two stop pieces (5) to keep the two stop pieces (5) inclined to be inserted into the lock groove (21); the push torque (4) and the linkage plate (72) need to overcome the force of the return spring to drive the stop pieces (5).
6. The compact transmission luggage lock according to claim 1, wherein: The swing base (8) includes a first swing rod (81), a connecting rod (82), and a second swing rod (83). The two ends of the connecting rod (82) are respectively connected to the middle parts of the first swing rod (81) and the second swing rod (83). The lower ends of the first swing rod (81) and the second swing rod (83) are hinged to the second base (2), and the upper ends of the first swing rod (81) and the second swing rod (83) are hinged to the lock case (3).
7. A compact transmission luggage lock according to claim 6, characterized in that: The top of the second base (2) is provided with a relief groove (22). When the lock body is not raised, the connecting rod (82) is embedded in the relief groove (22).
8. The compact transmission luggage lock according to claim 1, wherein: The top of the second base (2) is integrally formed with a boss (23), and the lock groove (21) is formed on the inner side of the boss (23); the bottom of the lock shell (3) is provided with a positioning groove (32), and the boss (23) is inserted into the positioning groove (32) when the lock body is not raised.
9. The compact transmission luggage lock according to claim 1, wherein: The two locking hooks (11) are integrally formed on the top of the first base (1), and the lock shell (3) is integrally formed with the locking part (31) corresponding to the two locking hooks (11).
10. The compact transmission luggage lock according to claim 1, wherein: The lock case (3) includes a base plate (33), a case body (34) and a panel (35). The base plate (33) and the case body (34) form a receiving cavity, and the panel (35) is snapped onto the top of the case body (34).