A multi-position adjustment case lock

Abstract

The present application relates to the technical field of luggage lock, and discloses a multi-gear adjusting luggage lock, which comprises two zipper strips with guide plates, a left half cover and a right half cover which can be combined, and a middle tube fixed to the luggage, the left and right half covers are connected through the guide plates and guide grooves to make the two zipper strips move synchronously, a slider, a stop block, an inward block and a middle disc in the middle tube constitute a switchable limiting part, a magnetic disc changes the positions of a directional rod and the middle disc, so that the lock is switched among the releasing state, the temporary fixing state and the locking state, and the locking structure is hidden and can prevent the unilateral zipper from being opened independently.

Description

Technical Field

[0001] This invention relates to the field of luggage lock technology, and more specifically, to a multi-position adjustable luggage lock that enables two zippers to move synchronously and switch between released, temporarily fixed and locked states. Background Technology

[0002] Luggage often uses double zippers to close the opening. The two zipper heads can move independently along the zipper. After closing the luggage, users usually bring the two zipper heads together near the lock body and then use a combination lock, key lock, or fastener to prevent the two zipper heads from separating, thus preventing the luggage opening from being pulled open directly.

[0003] Most existing zipper locks for bags have two keyholes on the lock body, with two zipper heads or pull tabs held in place by hooks. This type of structure requires aligning the two zipper heads with the keyholes one by one. After locking, the lock body and operating parts are still quite visible, making it easy for unauthorized personnel to observe the position of the hooks, buttons, combination wheels, or keyholes from the outside and attempt to apply force to the exposed release parts.

[0004] Some structures directly interlock the two zipper pulls. While this type of structure can temporarily prevent the two zipper heads from separating, there is a lack of switchable secondary locking between the two zipper heads and the fixed parts on the bag. When short-term closing, frequent retrieval of items, and long-term theft prevention are required, only the same locking strength can usually be used, and there is no choice between temporary fixing and concealed locking.

[0005] Therefore, there is a need for a bag lock that can first convert two independent zippers into a synchronous movement state, then use the fixed structure on the bag to form a switchable limit, and ensure that the locking and unlocking paths are not directly exposed to the outside. Summary of the Invention

[0006] To address the problems of existing double zippers requiring individual insertion into the lock holes, the possibility of separate manipulation of the two zipper heads, and the difficulty in switching the locking state according to the usage scenario, this invention provides a multi-position adjustable bag lock. The left and right halves make the two zippers move synchronously, and the release, temporary fixation, and locking states are achieved by limiting the slider in the middle tube and switching the position of the middle plate.

[0007] To achieve the above objectives, guide plates are provided on the two zippers respectively. The left and right halves can be combined and fitted onto the outside of the middle tube fixed to the bag. The left and right halves are respectively connected to guide plates. Guide grooves extending along the zipper movement direction are opened on the guide plates. After the two guide plates enter the corresponding guide grooves, the two zippers can still slide relative to the guide plates. However, after the left and right halves are combined, the moving force on one zipper can be transferred to the other zipper, so that the two zippers move synchronously in the same direction.

[0008] Conical grooves are opened on the inner walls of the left and right halves, and side grooves and inclined follower grooves are opened on the outer wall of the middle tube. A slider is installed in the follower groove. The slider is connected to a stop block that can extend out of the side groove and an inward block that extends toward the axis of the middle tube. After the stop block extends out, it can fit into the conical groove to prevent the assembled left and right halves from directly separating from the middle tube.

[0009] As the follower groove moves upward, it gradually approaches the axis of the middle tube. When the slider moves upward along the follower groove, it contracts inward in sync, and the stop block can gradually retract into the side groove. When the slider moves downward along the follower groove, it expands outward in sync, and the stop block can extend out of the side groove and enter the conical groove. Thus, the same set of sliders is used to complete radial engagement and axial release.

[0010] A middle plate is slidably installed inside the middle tube. Multiple stop grooves are opened on the outer wall of the middle plate. The stop grooves correspond to the inward blocks respectively. When the middle plate is in the lower temporary fixed position, the stop grooves leave the upward movement path of the inward blocks. The slider can retract upward and inward along the follower groove. When the combined left and right halves are subjected to sufficient external force upward, they can push the stop block to retract and detach from the middle tube.

[0011] When the middle plate is in the upper locked position, the stop groove abuts against the corresponding inward block and restricts the inward block from moving upward. The slider cannot retract upward along the follower groove, so the stop block remains extended out of the side groove and pressed into the cone groove. The left and right halves cannot be pulled away from the middle tube by ordinary upward pulling.

[0012] The upper end of the middle tube is connected to the top plate, and the control sleeve is connected to the limit rotation inside the top plate. Multiple through holes are opened on the top plate. The upper end of the inward block is connected to the pull rope. After the pull rope passes through the through hole, it is connected to the control sleeve. Rotating the control sleeve can wind up multiple pull ropes and simultaneously pull multiple inward blocks to move upward, so that each slider and stop block retracts upward along the follower groove, thereby forming an active release state before installing the left and right half-sets.

[0013] The lower end of the inward block is connected to a spring, and the lower end of the spring abuts against the lower end of the intermediate tube. After the control sleeve releases the external torque, the spring can push the inward block and the slider to reset downward along the follower groove, so that the stop block automatically extends out of the side groove and enters the conical groove. Multiple springs act on the corresponding sliders respectively, so that the circumferentially distributed stop blocks can adapt to the fitting state of the left and right halves and form a stable snap-fit.

[0014] A directional groove is opened inside the control sleeve, and a directional rod is slidably connected inside the directional groove. The lower end of the directional rod is connected to the intermediate plate. The directional groove restricts the rotation of the directional rod and the intermediate plate relative to the control sleeve and provides axial guidance for them, so that the intermediate plate maintains the circumferential correspondence between the stop groove and each inward block during the up and down switching process.

[0015] A top magnetic block is installed at the top of the directional slot, and a bottom magnetic block is installed at the bottom of the middle tube. The directional rod is magnetic and can be held close to the top magnetic block or the bottom magnetic block respectively. A disk is detachably installed at the top of the control sleeve. After the disk is flipped, it changes the direction of the magnetic pole facing the directional rod, thereby generating an upward attraction or a downward push on the directional rod.

[0016] When the disk face is downward with the guide rod in the direction of attraction, the guide rod moves the middle disk upward to the locking position. The stop groove abuts against the inward block and prevents the slider from retracting upward. When the disk face is downward with the guide rod in the direction of repulsion, the guide rod moves the middle disk downward to the temporary fixed position. The stop groove leaves the upward movement path of the inward block. The operator can thus switch the locking position without setting an exposed keyhole or combination wheel.

[0017] The top and bottom magnetic blocks share the same magnetic poles on the side facing the guide rod, and the guide rod is held in place by attraction with both of them. The external disk only changes the resultant force on the guide rod when the gear is switched. After the disk is removed, the guide rod can still stay at the selected end, preventing the middle disk from changing position on its own due to bag movement or vibration.

[0018] The end of the stop block facing the conical groove is provided with an inclined surface that matches the conical groove. When the middle plate is in a temporarily fixed position, the left and right halves are subjected to an upward pulling force, which can apply an inward component force to the stop block through the inclined surface of the conical groove. The slider then retracts upward along the follower groove. When the middle plate is in the locked position, the inward block is restricted by the stop groove, and the component force applied by the conical groove cannot be converted into the slider moving upward, thus forming different release permissions on the same set of snap-fit ​​structures.

[0019] The left half, right half, guide plate, guide groove and guide plate together connect the two independently movable zippers into a synchronous moving body. After locking, no matter which side pushes the zipper, the moving force will be transmitted to the other side zipper through the combined left and right half. The two zippers cannot form an opening in the bag by moving away from each other.

[0020] The follower groove, slider, stop, inward block and stop groove constitute a switchable mechanical limit. When the middle plate is in the lower position, the stop is allowed to retract under force to form a temporary fixation. When the middle plate is in the upper position, the retraction path of the stop is blocked to form a lock. The same lock body can adapt to both short-term closing and long-term anti-theft use needs.

[0021] The control sleeve, pull rope, and spring form a synchronous retraction and automatic reset path. Rotating the control sleeve will cause multiple blocks to retract into the side groove simultaneously. After releasing, multiple blocks will automatically enter the conical groove. The installation of the left and right halves does not require pressing the locking hooks one by one, which can reduce the complexity of the double zipper alignment and locking operation.

[0022] The disk changes the position of the orientation rod and the middle disk by flipping the magnetic poles. The top and bottom magnetic blocks maintain the selected positions respectively. After the disk is removed, only the control sleeve and the combination kit are left on the outside. It is difficult to directly observe the actual locking state and unlocking direction of the middle disk, thereby improving the concealment of the locking structure. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention, in which the left and right halves are combined and fitted onto the middle tube. Figure 2 This is a schematic diagram of the structure of the left half-piece, right half-piece, and two zippers in the separated state of the present invention; Figure 3 This is a cross-sectional view of the position where the left and right halves of the sleeve mate with the middle tube in this invention. Figure 4 This is a cross-sectional view of the slider limiting and magnetic adjustment structure inside the intermediate tube in this invention. Figure 5 This is a cross-sectional view of the intermediate disk in the present invention when it is in a temporarily fixed position. Figure 6 This is a partial structural diagram showing the cooperative relationship between the disk, the guide rod, the intermediate disk, and the slider in this invention; Figure 7 This is a schematic diagram of the structure of the middle tube, top disk, and bottom magnetic block in this invention; Figure 8 This is a schematic diagram of the slider, stop, spring and pull rope in this invention.

[0024] Reference numerals: 1. Zipper; 2. Guide plate; 3. Left half sleeve; 4. Right half sleeve; 5. Guide plate; 6. Guide groove; 7. Conical groove; 8. Middle tube; 9. Top plate; 10. Control sleeve; 11. Disk; 12. Orientation groove; 13. Orientation rod; 14. Middle plate; 15. Top magnetic block; 16. Bottom magnetic block; 17. Side groove; 18. Follower groove; 19. Slider; 20. Stop block; 21. Inward block; 22. Stop groove; 23. Spring; 24. Pull rope; 25. Through hole. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will be described below with reference to the accompanying drawings and embodiments.

[0026] It should be noted that, unless otherwise stated, the technical terms used in this application have the meanings commonly understood by those skilled in the art, and the structures shown in the accompanying drawings are used to illustrate the relative positions and mating relationships of the components.

[0027] The directional terms used in this invention, such as up, down, left, right, inside, and outside, refer to the directions shown in the accompanying drawings or the outline of the component itself, and are used only for ease of description and do not constitute a limitation on the installation direction.

[0028] Please see Figures 1 to 8 In this embodiment, the multi-position adjustable bag lock is installed at the opening of the bag with two zippers 1. The two zippers 1 can move along the corresponding chain belts respectively. The middle tube 8 is fixedly installed at the predetermined locking position of the bag. The left half sleeve 3 and the right half sleeve 4 are used to combine into a ring-shaped sleeve structure after the two zippers 1 come close together and are together sleeved on the outside of the middle tube 8.

[0029] Guide discs 2 are respectively provided on the two zippers 1. The left half 3 and the right half 4 are respectively connected to guide plates 5. Each guide plate 5 has a guide groove 6 extending along the moving direction of the zipper 1. The guide discs 2 are slidably connected in the corresponding guide grooves 6. Therefore, the zipper 1 can move relatively to the guide plates 5 and maintain the connection with the left and right half zippers.

[0030] The left half sleeve 3 and the right half sleeve 4 are semi-circular in shape. When their opposite ends are combined, they form a socket hole that matches the outer diameter of the middle tube 8. The inner walls of the left half sleeve 3 and the right half sleeve 4 are respectively provided with conical grooves 7. The two conical grooves 7 are located on opposite sides of the socket hole and are used to receive the stop block 20 extending from the outside of the middle tube 8.

[0031] When the left half 3 and the right half 4 are combined into a whole, the relative position between the two guide plates 5 is fixed. If any zipper 1 moves along the direction of the bag opening, its guide plate 2 will push the groove wall of the corresponding guide groove 6. The moving force is transmitted through the combined left half 3 and right half 4 to the other guide plate 5 and guide plate 2, so that the two zippers 1 move to the left or right synchronously.

[0032] Since the two zippers 1 cannot be far apart after the left and right halves are combined, even if one zipper 1 is pushed alone, the other zipper 1 will move accordingly, and the relative distance between the two zippers 1 remains stable, thus avoiding the bag opening from opening between the two zippers by pulling only one zipper 1.

[0033] The upper end of the intermediate tube 8 is fixedly connected to the top plate 9. The outer diameter of the top plate 9 is larger than the outer diameter of the intermediate tube 8 and is located above the combined left half sleeve 3 and right half sleeve 4. The top plate 9 is internally limited to the control sleeve 10. The control sleeve 10 can rotate relative to the top plate 9 but cannot be directly axially removed from the top plate 9.

[0034] Multiple side grooves 17 and multiple follower grooves 18 are provided on the outer wall of the intermediate tube 8 along the circumferential direction. Each side groove 17 corresponds to a follower groove 18. The follower grooves 18 gradually approach the axis of the intermediate tube 8 from bottom to top. The slider 19 is slidably connected in the follower groove 18 and can generate axial displacement and radial displacement along the follower groove 18 at the same time.

[0035] Each slider 19 is connected to a stop block 20 on its outer side. The stop block 20 can extend out of the middle tube 8 through the corresponding side groove 17. Each slider 19 is connected to an inward block 21 on its inner side. The inward block 21 extends toward the axis of the middle tube 8. When the slider 19 moves upward, it causes the stop block 20 and the inward block 21 to retract inward synchronously. When the slider 19 moves downward, it causes the stop block 20 and the inward block 21 to expand outward synchronously.

[0036] The end of the stop block 20 facing the left half sleeve 3 or the right half sleeve 4 is provided with an inclined surface that matches the conical groove 7. After the stop block 20 extends out of the side groove 17, it can press into the conical groove 7 and restrict the left and right half sleeves from moving upward away from the middle tube 8. After the stop block 20 retracts into the side groove 17, the socket formed by the left and right half sleeves is no longer blocked by the stop block 20.

[0037] The lower end of the inward block 21 is connected to the spring 23, and the lower end of the spring 23 abuts against the lower end of the intermediate tube 8. The spring 23 applies a downward pushing force to the inward block 21 and causes the slider 19 to maintain a downward tendency along the follower groove 18. Therefore, when there is no other external force, the multiple stops 20 remain in the latched state of extending out of the side groove 17.

[0038] Multiple through holes 25 are provided along the circumferential direction of the top plate 9. Each inner block 21 is connected to a pull rope 24 at its upper end. The pull rope 24 passes through the corresponding through hole 25 and is connected to the control sleeve 10. The through hole 25 restricts the circumferential position of the pull rope 24 and converts the rotation and winding action of the control sleeve 10 into the upward pulling action of the pull rope 24.

[0039] When the left half-sleeve 3 and the right half-sleeve 4 need to be installed, the operator first rotates the control sleeve 10. The control sleeve 10 winds up multiple pull ropes 24 and pulls the corresponding inward block 21 to move upward. The inward block 21 drives the slider 19 to move upward along the follower groove 18 and retract towards the axis of the middle tube 8. The stop block 20 then completely retracts into the side groove 17.

[0040] After the stop block 20 retracts into the side groove 17, the operator moves the left half sleeve 3 and the right half sleeve 4 close to the two zippers 1 and combines them, so that the two guide discs 2 enter the guide grooves 6 on the guide plate 5 respectively, and then puts the combined left and right half sleeves on top of the middle tube 8 until the two cone grooves 7 move to the height corresponding to the stop block 20 respectively.

[0041] After the left and right halves are put into place, the operator releases the control sleeve 10. The spring 23 pushes the inward block 21 and the slider 19 to return to their original position along the follower groove 18. The stop block 20 extends outward from the side groove 17 and enters the corresponding cone groove 7. The left and right halves are thus engaged with the middle tube 8. The two guide plates 5 cause the two zippers 1 to enter a state of synchronous movement.

[0042] The intermediate plate 14 is slidably connected inside the intermediate tube 8. Multiple stop grooves 22 are provided on the outer wall of the intermediate plate 14 along the circumferential direction. The multiple stop grooves 22 correspond to multiple inward blocks 21 respectively. When the intermediate plate 14 moves up and down inside the intermediate tube 8, the circumferential correspondence between the stop grooves 22 and the inward blocks 21 is maintained.

[0043] When the intermediate plate 14 is located at the bottom, it forms a temporary fixed stop. The stop groove 22 moves away from the limiting position of the inward block 21. When the left and right half-sleeves are subjected to upward tension, the inclined surface of the cone groove 7 pushes the stop block 20 to retract inward. The stop block 20 drives the slider 19 to move upward along the follower groove 18 and compress the spring 23. The left and right half-sleeves can disengage from the intermediate tube 8 after reaching the predetermined tension.

[0044] The temporary fixed position is suitable for scenarios where users need to frequently open the bag but want the two zippers 1 to remain concentrated and synchronized temporarily. The left and right halves will not come off by themselves due to slight shaking of the bag, and the user can directly push the combined left and right halves upward to make the multiple stops 20 retract along the slope and complete the quick release.

[0045] The control sleeve 10 has an directional groove 12, and a directional rod 13 is slidably connected in the directional groove 12. The lower end of the directional rod 13 is fixedly connected to the intermediate plate 14. The directional groove 12 restricts the rotation of the directional rod 13 relative to the control sleeve 10 and guides the directional rod 13 axially, so that the intermediate plate 14 can only switch positions along the axial direction of the intermediate tube 8.

[0046] A top magnet 15 is provided at the upper part of the directional groove 12, and a bottom magnet 16 is provided at the lower part of the intermediate tube 8. The directional rod 13 is magnetic and can be attracted to the top magnet 15 when it is close to the upper end and to the bottom magnet 16 when it is close to the lower end. The top magnet 15 and the bottom magnet 16 keep the directional rod 13 at two stable end positions respectively.

[0047] The upper part of the control sleeve 10 is detachably equipped with a disk 11. The disk 11 has two opposite magnetic poles on its surface. When the disk 11 is placed with its surface facing down to attract the guide rod 13, the disk 11 generates an upward attraction on the guide rod 13 and causes the guide rod 13 to detach from the bottom magnetic block 16. The guide rod 13 drives the middle disk 14 to move upward and closer to the top magnetic block 15.

[0048] After the intermediate plate 14 moves up to the locking position, the stop groove 22 abuts against the corresponding inward block 21 and restricts the inward block 21 from moving upward. The slider 19 cannot retract upward along the follower groove 18. The stop block 20 remains extended out of the side groove 17 and pressed into the cone groove 7. At this time, ordinary upward pulling cannot make the left and right halves separate from the intermediate tube 8.

[0049] After locking is completed, the disk 11 can be removed from the control sleeve 10. The guide rod 13 is held in the upper position by the top magnet 15. It is difficult to observe the cooperation status of the middle disk 14, the stop groove 22 and the inward block 21 from the outside of the bag, and it is also impossible to push the left and right half sleeves directly to make the stop block 20 retract into the side groove 17.

[0050] When it is necessary to return from the locked position to the temporary fixed position, the authorized operator flips the disk 11 so that the disk surface of the repulsion guide 13 is facing down and close to the control sleeve 10. The disk 11 exerts a downward force on the guide 13, and the guide 13 overcomes the holding force of the top magnet 15 and drives the middle disk 14 to move down until the guide 13 approaches and is attracted to the bottom magnet 16.

[0051] After the middle plate 14 moves down, the stop groove 22 releases the restriction on the upward movement path of the inward block 21, and the left and right halves regain the ability to be pushed upward and released. The operator can directly push the left and right halves upward to complete the temporary release, or rotate the control sleeve 10 to actively pull the multiple sliders 19 through the pull rope 24 to retract and smoothly remove the left and right halves.

[0052] This embodiment features a multi-position adjustment system consisting of three states: active release, temporary fixation, and locking. The active release state is used for installation or unobstructed disassembly. The temporary fixation state is maintained by the spring 23 and the stop block 20, but allows for release with sufficient upward thrust. The locking state blocks the retraction path of the slider 19 by the intermediate plate 14 and the stop groove 22.

[0053] Without changing the working principle described above, the number of follower groove 18, slider 19, stop block 20, spring 23 and stop groove 22 can be adjusted according to the diameter of intermediate tube 8 and locking load. Each set of structures is preferably evenly distributed along the circumference of intermediate tube 8 so that the limiting force borne by the left and right halves is more balanced.

[0054] The combined ends of the left half sleeve 3 and the right half sleeve 4 can use stepped surfaces or positioning surfaces that fit together to keep the socket holes coaxial. The length of the guide groove 6 can be determined according to the allowable adjustment stroke of the zipper 1 relative to the left and right half sleeves. The angle between the stop block 20 and the conical groove 7 should take into account both the holding force of the temporary stop and the upward release force during authorized operation.

[0055] The magnetic pole strength of the top magnetic block 15, bottom magnetic block 16, guide rod 13 and disk 11 should enable the guide rod 13 to reliably switch when the disk 11 is close and to stably remain at the selected end after the disk 11 is removed. The specific magnetic material and size can be selected according to the mass of the middle disk 14, the degree of vibration of the bag and the size of the lock body.

[0056] The above embodiments are used to illustrate the structure and working principle of the present invention. Those skilled in the art can make equivalent substitutions for the shape, quantity, material and connection method of the components without departing from the core concept of the present invention. The scope of protection of the present invention shall be determined by the claims and their equivalents.

Claims

1. A multi-position adjustable luggage lock, comprising two zippers (1) with guide discs (2) and a central tube (8) fixed to the luggage, characterized in that: It also includes a left half-sleeve (3) and a right half-sleeve (4) that are fitted together outside the middle tube (8). The outer sides of the left half-sleeve (3) and the right half-sleeve (4) are respectively connected to guide plates (5). Guide grooves (6) are opened on the two guide plates (5) for the corresponding guide discs (2) to slide. Conical grooves (7) are opened on the inner walls of the left half-sleeve (3) and the right half-sleeve (4). Side grooves (17) and inclined follower grooves (18) are opened on the outer wall of the middle tube (8). The slider (19) in the follower groove (18) is connected to the conical groove (7) and can extend into the conical groove (7). The middle tube (8) has a middle disk (14) with a stop groove (22) on its outer wall that slides inside the middle tube (8). The middle disk (14) is connected to a magnetic guide rod (13). A magnetic disk (11) with opposite magnetic poles is detachably mounted above the guide rod (13). Flipping the disk (11) can attract or repel the guide rod (13), so that the middle disk (14) can move between a temporary fixed position that allows the stop (20) to retract and a locked position that prevents the stop (20) from retracting.

2. The multi-position adjustable luggage lock according to claim 1, characterized in that: The left half-sleeve (3) and the right half-sleeve (4) are respectively semi-circular. The left half-sleeve (3) and the right half-sleeve (4) are combined to form a socket hole for the middle tube (8) to pass through. The two conical grooves (7) are located on opposite sides of the socket hole.

3. The multi-position adjustable luggage lock according to claim 1, characterized in that: The guide plate (5) is connected to the outside of the left half (3) and the right half (4) respectively. The guide groove (6) extends along the moving direction of the zipper (1). The two guide discs (2) are slidably connected in the corresponding guide groove (6).

4. The multi-position adjustable luggage lock according to claim 1, characterized in that: The upper end of the intermediate tube (8) is connected to the top plate (9), and the top plate (9) is connected to the control sleeve (10) for limiting rotation. Multiple through holes (25) are opened on the top plate (9). The upper end of the inward block (21) is connected to the pull rope (24). The pull rope (24) passes through the corresponding through hole (25) and is connected to the control sleeve (10).

5. A multi-position adjustable luggage lock according to claim 4, characterized in that: The lower end of the inward block (21) is connected to a spring (23). The lower end of the spring (23) abuts against the lower end of the intermediate tube (8). When the control sleeve (10) rotates, the inward block (21), the slider (19) and the stop block (20) are driven to move upward along the follower groove (18) and retract toward the axis of the intermediate tube (8) via the pull rope (24). The spring (23) is used to drive the stop block (20) to reset and extend out of the side groove (17).

6. A multi-position adjustable luggage lock according to claim 4, characterized in that: The control sleeve (10) has an directional groove (12) inside, and a directional rod (13) is slidably connected inside the directional groove (12). The lower end of the directional rod (13) is connected to the middle plate (14). The upper part of the directional groove (12) is provided with a top magnetic block (15), and the lower part of the middle tube (8) is provided with a bottom magnetic block (16).

7. A multi-position adjustable luggage lock according to claim 6, characterized in that: The upper part of the control sleeve (10) is detachably equipped with a disk (11). The two disks of the disk (11) form different magnetic pole directions. When the disk (11) faces the guide rod (13) with one disk, it attracts the guide rod (13) to move upward. When the disk (11) is flipped over and faces the guide rod (13) with the other disk, it pushes the guide rod (13) to move downward.

8. A multi-position adjustable luggage lock according to claim 6, characterized in that: The top magnet (15) and the bottom magnet (16) have the same magnetic pole on the side facing the guide rod (13). The guide rod (13) is magnetic and can be attracted to the top magnet (15) and the bottom magnet (16) respectively, so that the middle disk (14) is kept in the locked position or the temporary fixed position.

9. A multi-position adjustable luggage lock according to claim 1, characterized in that: Multiple follower grooves (18) are distributed circumferentially along the middle tube (8). The follower grooves (18) gradually approach the axis of the middle tube (8) from bottom to top. Multiple stop grooves (22) are distributed circumferentially along the middle disk (14) and correspond to multiple inward blocks (21) respectively.

10. A multi-position adjustable luggage lock according to claim 1, characterized in that: The end of the stop block (20) facing the left half sleeve (3) or the right half sleeve (4) is provided with an inclined surface that matches the conical groove (7). When the middle plate (14) is in the temporary fixed position, the left half sleeve (3) and the right half sleeve (4) can move upward and push the stop block (20) to retract upward along the follower groove (18) through the conical groove (7). When the middle plate (14) is in the locked position, the stop groove (22) abuts against the inward block (21) to prevent the stop block (20) from retracting.

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