Customs lock with double locking mechanisms
The mirrored slanted slide design with dual locking mechanism enables independent locking and unlocking of multi-compartment bags, solving the problem that existing customs locks cannot store and retrieve items independently, and improving the convenience of using the bags.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 张宝全
- Filing Date
- 2025-06-03
- Publication Date
- 2026-05-08
AI Technical Summary
The existing single locking mechanism of customs locks is difficult to adapt to multi-compartment bags, resulting in all zipper pulls being unable to meet the needs of individual storage and retrieval of items when unlocking, causing redundant operations and limiting the product upgrade of multi-functional bags.
It adopts a dual locking mechanism design, which realizes independent locking and unlocking control of the left and right zipper heads by mirroring the oblique slide groove and the left and right sliding of the lock plate. Users can selectively unlock the locking mechanism on either side by pushing the lock button or rotating the key lock cylinder.
It enables individual locking and unlocking of multi-compartment bags, improving ease of use, meeting the need for individual storage and retrieval of multi-compartment bags, and solving the pain point of traditional customs locks that can be fully opened or closed.
Smart Images

Figure CN224213957U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of customs lock technology, and in particular to a customs lock with a double locking mechanism. Background Technology
[0002] With the continuous upgrading of modern luggage design concepts, multi-compartment storage structures have become an important development direction for luggage products. Some suitcases adopt independent compartment designs, using multiple zippers to achieve independent opening and closing of different storage spaces. While this structure improves the convenience of item classification and management, it also poses new technical requirements for customs locks. Existing customs locks generally adopt a design scheme with a single locking mechanism and dual-channel unlocking. The typical structure has a lock groove in the center of the lock body, which can be unlocked by two methods: a customs-specific key and a user-defined combination lock. However, the single locking mechanism structure is difficult to adapt to the design of luggage with two zippers, limiting the optimization of the luggage space layout. When unlocking existing customs locks, all locked zipper heads are unlocked, which cannot meet the needs of individual storage and retrieval of items in multi-compartment luggage, resulting in unnecessary redundant operations. These structural defects have constrained the product upgrade process of modern multi-functional luggage. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a customs lock with a double locking mechanism, which can lock the zipper heads of different compartments through the double locking mechanism, and independently control the locking and unlocking of the double locking mechanism, so that multi-compartment bags can be effectively locked while allowing individual unlocking and retrieval of items, thus improving the convenience of use.
[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a customs lock with a double locking mechanism, including a base and a housing, the housing being fixed to the upper end of the base, a combination lock assembly, a key lock cylinder, and a lock button being provided on the base, the combination lock assembly being fixed to the lock button, the lock button being sleeved on the key lock cylinder, the lock button protruding from the upper surface of the housing and being able to slide left and right, a lock plate being provided on the base, and an engaging assembly being provided between the lock plate and the key lock cylinder, the engaging assembly causing the key lock cylinder to drive the lock plate to move, the lock plate being able to slide left and right. The lock plate has a first inclined slide groove and a second inclined slide groove at each end. The inclined surfaces of the first and second inclined slide grooves face opposite directions. Locking mechanisms are provided at both ends of the lock plate. The two locking mechanisms slide in the first and second inclined slide grooves respectively. When the lock button is pushed to the left or the key lock cylinder is rotated clockwise, the lock plate moves to the left, thereby unlocking the locking mechanism at the left end of the lock plate. When the lock button is pushed to the right or the key lock cylinder is rotated counterclockwise, the lock plate moves to the right, thereby unlocking the locking mechanism at the right end of the lock plate.
[0005] Furthermore, the locking mechanism includes a mounting base, a locking tongue, and a slider. The mounting base is fixed to the base, and the locking tongue is rotatably mounted on the upper surface of the mounting base. A slider groove is provided at the lower end of the mounting base, and the slider slides within the slider groove. An inclined slider is integrally provided at the lower end of the slider, and the inclined slider slides within either the first or second inclined slide groove. Both the first and second inclined slide grooves consist of a flat end and an inclined end. The inclined ends of the first and second inclined slide grooves face mirror images of each other. When the locking plate moves to the left, the slider at the left end slides at the inclined end of the first inclined slide groove, and the slider at the right end... The block slides at the flat end of the second inclined slide groove. When the locking plate moves to the right, the slider at the right end slides at the inclined end of the second inclined slide groove, and the slider at the left end slides at the flat end of the first inclined slide groove. A spring is provided between the slider and the inner wall of the slider groove. A through groove is provided at the upper end of the slider. A baffle and a slot are provided on the locking tongue. The opening direction of the slot is perpendicular to the baffle. When the inclined slider slides at the inclined end of the first or second inclined slide groove, the slider slides in the slider groove along the direction in which the spring is compressed, so that the through groove is directly opposite the baffle. The locking tongue is rotated to make the slot face upward.
[0006] Furthermore, a first protrusion is integrally formed on the upper surface of the lock button. The first protrusion is used to push the lock button to move left and right. The combination lock assembly is fixed in the housing. The side of the lock button is fixed to the end of the wheel axle of the combination lock assembly. The lock button has a lock cylinder hole that runs vertically through it. The key lock cylinder is located in the lock cylinder hole. When the combination lock assembly is in the unlocked state, the wheel axle can move left and right, pushing the first protrusion. The lock button drives the key lock cylinder to move, and the key lock cylinder drives the lock plate to move.
[0007] Furthermore, the fitting assembly includes at least one groove and at least one second protrusion. The groove is disposed at the bottom of the key lock cylinder and located at an off-center position. The second protrusion is integrally disposed on the lock plate, and the second protrusion is fitted into the groove in a one-to-one correspondence.
[0008] Furthermore, there are two grooves, which are symmetrically arranged on both sides of the bottom center line of the key lock cylinder, and there are two second protrusions, whose positions correspond one-to-one with the grooves.
[0009] Furthermore, the upper surface of the housing is provided with a combination lock slot, a button slot and multiple latch slots, the positions of the latch slots correspond one-to-one with the latches, the combination wheel of the combination lock assembly passes through the combination lock slot, and the button slides left and right in the button slot.
[0010] Compared with the prior art, the advantage of this utility model is that by using the mirrored first and second oblique sliding grooves, combined with the left and right bidirectional sliding of the lock plate, the locking mechanisms on the left and right sides can be unlocked independently. Users can choose to unlock the locking mechanism on either side by pushing the lock button left or right or rotating the key lock cylinder, while the other side remains locked. This solves the problem of traditional customs locks being "fully open and fully closed" and meets the "single-zone storage and retrieval" needs of multi-compartment bags. Attached Figure Description
[0011] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0012] Figure 2 This is an exploded view of the present invention;
[0013] Figure 3 This is a cross-sectional view of the fitting component of this utility model;
[0014] Figure 4 This is a perspective view of the lock plate of this utility model;
[0015] Figure 5 This is a perspective view of the locking mechanism of this utility model;
[0016] Figure 6 This is a cross-sectional view of the locking mechanism of this utility model in the locked state;
[0017] Figure 7 This is a cross-sectional view of the locking mechanism of this utility model in the unlocked state. Detailed Implementation
[0018] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.
[0019] like Figure 1-7As shown, a customs lock with a dual locking mechanism includes a base 11 and a housing 12. The housing 12 is fixed to the upper end of the base 11. The base 11 is provided with a combination lock assembly 2, a key lock cylinder 3, a lock button 4, and a lock plate 5. A fitting assembly is provided between the lock plate 5 and the key lock cylinder 3. The fitting assembly causes the key lock cylinder 3 to move the lock plate 5. The fitting assembly includes at least one groove 61 and at least one second protrusion 62. The groove 61 is located at the bottom of the key lock cylinder 3 and is located at an off-center position. The second protrusion 62 is integrally provided on the lock plate 5. The second protrusion 62 and the groove 61 are fitted one-to-one. In this embodiment, there are two grooves 61, which are symmetrically arranged on both sides of the center line of the bottom of the key lock cylinder 3. There are also two second protrusions 62, and their positions correspond one-to-one with the grooves 61. The body 12 is provided with a lock button groove 121. The lock button 4 extends through the upper surface of the body 12 and slides left and right in the lock button groove 121. The upper surface of the lock button 4 is integrally provided with a first protrusion 41, which is used to push the lock button 4 to move left and right. The body 12 is provided with a combination lock groove 122. The combination wheel 22 of the combination lock assembly 2 extends through the combination lock groove 122. The combination lock assembly 2 is fixed inside the body 12. The side of the lock button 4 is fixed to the end of the wheel axle 21 of the combination lock assembly 2. The lock button 4 is provided with a lock cylinder hole 42 that extends vertically. The key lock cylinder 3 is located in the lock cylinder hole 42. When the combination lock assembly 2 is in the unlocked state, the wheel axle 21 can move left and right, pushing the first protrusion 41. The lock button 4 drives the key lock cylinder 3 to move, and the key lock cylinder 3 drives the lock plate 5 to move.The left and right ends of the locking plate 5 are respectively provided with a first inclined slide groove 51 and a second inclined slide groove 52. The inclined surfaces of the first inclined slide groove 51 and the second inclined slide groove 52 face opposite directions. Both ends of the locking plate 5 are provided with a locking mechanism 7. The locking mechanism 7 includes a mounting base 71, a locking tongue 72, and a slider 73. The mounting base 71 is fixed to the base 11. The locking tongue 72 is rotatably mounted on the upper surface of the mounting base 71. The upper surface of the housing 12 is provided with multiple locking tongue grooves 123. 23 corresponds one-to-one with the latch 72 and is located above the latch 72. The lower end of the mounting base 71 is provided with a slider groove 74, and the slider 73 slides in the slider groove 74. The lower end of the slider 73 is integrally provided with an inclined slider 75, which slides in the first inclined slide groove 51 or the second inclined slide groove 52. The first inclined slide groove 51 and the second inclined slide groove 52 are both composed of a flat end 511 and an inclined end 512. The inclined end 512 of the first inclined slide groove 51 and the inclined end of the second inclined slide groove 52 are... The directions of 512 are mirror images of each other. When the locking plate 5 moves to the left, the slider 73 at the left end slides at the inclined end 512 of the first inclined slide groove 51, and the slider 73 at the right end slides at the flat end 511 of the second inclined slide groove 52. When the locking plate 5 moves to the right, the slider 73 at the right end slides at the inclined end 512 of the second inclined slide groove 52, and the slider 73 at the left end slides at the flat end 511 of the first inclined slide groove 51. A space is provided between the slider 73 and the slider groove 74. The device includes a spring 76, a through groove 77 on the upper surface of the slider 73, and a baffle 721 and a slot 722 on the locking tongue 72. The opening direction of the slot 722 is perpendicular to the baffle 721. When the inclined slider 75 slides 512 at the inclined end of the first inclined slide groove 51 or the second inclined slide groove 52, the slider 73 slides in the slider groove 74 along the direction in which the spring 76 is compressed, so that the through groove 77 is directly opposite the baffle 721. Rotating the locking tongue 72 turns the slot 722 upward.
[0020] Instructions for use: To open the left compartment separately, enter the correct combination on the combination lock assembly 2 to unlock the axle 21. Push the first protrusion 41 on the lock button 4 to the left, causing the lock button 4 and the key lock cylinder 3 to move to the left simultaneously. The lock plate 5 slides to the left under the engagement of the groove 61 and the second protrusion 62. The inclined slider 75 of the left locking mechanism 7 moves along the inclined end 512 of the first inclined groove 51, compressing the spring 76. The through groove 77 of the slider 73 aligns with the baffle 721 of the latch 72. The user pulls the zipper head of the left compartment, causing the latch 72 to rotate so that the groove 722 faces upward, thus unlocking the left zipper head. The right compartment remains locked. At this time, the baffle 721 is located in the middle of the through groove 77 with the groove 722 facing upward. The user inserts the zipper head into the latch groove 123, causing the latch 72 to rotate and the baffle 721 to exit the through groove 77. Under the reaction force of the compression force of 76, the inclined slider 75 returns to the flat end 511 of the first inclined slide groove 51. The through groove 77 of the slider 73 is misaligned with the baffle 721 of the locking tongue 72, thereby locking the zipper head. If the right compartment needs to be opened separately, push the locking button 4 to the right. The locking plate 4 moves to the right, triggering the inclined slider 75 at the right end to slide along the inclined end 512 of the second inclined slide groove 52, so that the spring 76 is compressed. The through groove 77 of the slider 73 is aligned with the baffle 721 of the locking tongue 72. The user pulls the zipper head of the right bag compartment. The locking tongue 72 rotates so that the slot 722 faces upward, thereby releasing the right zipper head lock. The left compartment remains locked. When customs inspection is carried out, use the customs special key to insert the key lock cylinder 3 and turn it clockwise or counterclockwise. The key lock cylinder 3 drives the locking plate 5 to move to the left or right through the engagement of the groove 61 and the second protrusion 62. The locking mechanism 7 on the left or right side is unlocked.
[0021] The combination lock component 2 in this embodiment is existing technology and will not be described in detail here.
[0022] The scope of protection of this utility model includes, but is not limited to, the above embodiments. The scope of protection of this utility model is defined by the claims. Any substitutions, modifications, or improvements to this technology that are easily conceived by those skilled in the art shall fall within the scope of protection of this utility model.
Claims
1. A customs lock with a double locking mechanism, comprising a base and a housing, the housing being fixed to the upper end of the base, the base being provided with a combination lock assembly, a key lock cylinder, and a lock button, the combination lock assembly being fixed to the lock button, the lock button being sleeved on the key lock cylinder, characterized in that, The locking button protrudes from the upper surface of the housing and can slide left and right. A locking plate is provided on the base. An engaging assembly is provided between the locking plate and the key lock cylinder. The engaging assembly allows the key lock cylinder to move the locking plate. The left and right ends of the locking plate are respectively provided with a first oblique slide groove and a second oblique slide groove. The oblique surfaces of the first oblique slide groove and the second oblique slide groove face opposite directions. Locking mechanisms are provided at both ends of the locking plate. The two locking mechanisms slide one-to-one in the first oblique slide groove and the second oblique slide groove respectively. Pushing the locking button to the left or rotating the key lock cylinder clockwise moves the locking plate to the left, thereby unlocking the locking mechanism at the left end of the locking plate. Pushing the locking button to the right or rotating the key lock cylinder counterclockwise moves the locking plate to the right, thereby unlocking the locking mechanism at the right end of the locking plate.
2. A customs lock with a double locking mechanism as described in claim 1, characterized in that, The locking mechanism includes a mounting base, a latch, and a slider. The mounting base is fixed to the base, and the latch is rotatably mounted on the upper surface of the mounting base. A slider groove is provided at the lower end of the mounting base, and the slider slides within the slider groove. An inclined slider is integrally provided at the lower end of the slider, and the inclined slider slides within either a first or second inclined slide groove. Both the first and second inclined slide grooves consist of a flat end and an inclined end. The inclined ends of the first and second inclined slide grooves face mirror images of each other. When the locking plate moves to the left, the slider at the left end slides within the inclined end of the first inclined slide groove, and the slider at the right end slides within the inclined end of the first inclined slide groove. The second inclined slide slides at its flat end. When the locking plate moves to the right, the slider at the right end slides at the inclined end of the second inclined slide, and the slider at the left end slides at the flat end of the first inclined slide. A spring is provided between the slider and the inner wall of the slider groove. A through groove is provided at the upper end of the slider. A baffle and a slot are provided on the latch. The opening direction of the slot is perpendicular to the baffle. When the inclined slider slides at the inclined end of the first or second inclined slide, the slider slides in the slider groove along the direction in which the spring is compressed, so that the through groove is directly opposite the baffle. The latch is rotated to make the slot face upward.
3. A customs lock with a double locking mechanism as described in claim 1, characterized in that, The upper surface of the lock button is integrally provided with a first protrusion, which is used to push the lock button to move left and right. The combination lock assembly is fixed in the housing. The side of the lock button is fixed to the end of the wheel axle of the combination lock assembly. The lock button has a lock cylinder hole that runs vertically through it. The key lock cylinder is located in the lock cylinder hole. When the combination lock assembly is in the unlocked state, the wheel axle can move left and right, pushing the first protrusion. The lock button drives the key lock cylinder to move, and the key lock cylinder drives the lock plate to move.
4. A customs lock with a double locking mechanism as described in claim 1, characterized in that, The fitting assembly includes at least one groove and at least one second protrusion. The groove is disposed at the bottom of the key lock cylinder and located at an off-center position. The second protrusion is integrally disposed on the lock plate, and the second protrusion is fitted into the groove in a one-to-one correspondence.
5. A customs lock with a double locking mechanism as described in claim 4, characterized in that, There are two grooves, which are symmetrically arranged on both sides of the bottom center line of the key lock cylinder. There are two second protrusions, and their positions correspond one-to-one with the grooves.
6. A customs lock with a double locking mechanism as described in claim 2, characterized in that, The upper surface of the housing is provided with a combination lock slot, a button slot and multiple latch slots. The position of the latch slots corresponds to the latch. The combination wheel of the combination lock assembly passes through the combination lock slot, and the button slides left and right in the button slot.