Multi-layer suitcase zipper combination lock

Abstract

The present application relates to the technical field of lock, in particular to a multi-layer zipper password lock for luggage, comprising a lock shell, a lock hook rotatably installed in the lock shell, a lock block used for abutting against the lock hook to realize locking, and a movable plate used for driving the lock block to move to realize unlocking, the lock shell is provided with a password wheel assembly and a push assembly which can slide along the length direction of the lock shell, the push assembly is movably connected with the movable plate, the password wheel assembly comprises a wheel shaft which is arranged along the length direction of the lock shell and can extend and retract, and a wheel shaft spring which is sleeved on the outer circumferential side of the wheel shaft, and the end of the wheel shaft is located on the sliding track of the push assembly. The zipper password lock of the present application uses the wheel shaft spring of the password wheel assembly itself as a reset member to automatically reset the push assembly after sliding, without adding a reset spring inside the zipper password lock, thereby simplifying the internal structure of the zipper password lock and the assembly process of the zipper password lock, and solving the problem of complex structure in the prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of locks, in particular to a zipper password lock for multi-layer luggage. BACKGROUND

[0002] In order to facilitate the classification and storage of articles, the current market luggage is multi-layer luggage, and each layer of the luggage is closed or opened by a zipper. For these multi-layer luggage, a zipper password lock is generally installed between the adjacent two layers. The zipper password lock is provided with a plurality of lock holes for inserting a zipper piece, and each lock hole is provided with a lock hook for hooking the zipper piece.

[0003] The zipper password lock is also provided with a push device (button switch). When the password is correct, the push device is manually actuated to move in the unlocking direction. The movement of the push device controls the turning of the lock hook through the transmission structure in the lock, thereby achieving unlocking. In order to facilitate the automatic return of the push device after unlocking, the current market zipper password lock generally sets a return spring in the lock. When the push device is pushed by the hand, the return spring is in a compressed state. When the push device is removed by the hand and no longer applies a pushing force, the return spring in the compressed state will drive the push device to reset by using its own elastic force, so that the push device can automatically return without being pushed by the hand.

[0004] In the prior art, in order to enable the push device to automatically reset, an above-mentioned return spring is added to drive the push device to reset. Generally, the return spring is arranged between the lock shell and the push device, and the return spring needs to be arranged on the straight line in the unlocking direction of the push device. This undoubtedly leads to the structure of the zipper password lock being too complex and the assembly process being more troublesome.

[0005] In addition, the zipper password lock provided with the lock hooks on the left and right sides of the push device. Since the push device moves to the left to unlock the lock hook on the left side and moves to the right to unlock the lock hook on the right side, the return spring needs to be arranged on both sides. This undoubtedly increases the manufacturing cost of the zipper password lock and makes the internal structure of the zipper password lock more complex. SUMMARY

[0006] The present application aims at the deficiencies in the prior art and provides a zipper password lock for multi-layer luggage, which can solve the technical problem of complex structure.

[0007] The purpose of the present application is achieved by the following technical solutions:

[0008] The application provides a multi-layer suitcase zipper coded lock, which comprises a lock shell, a lock hook rotatably arranged in the lock shell, a lock block used for abutting against the lock hook to realize locking, and a movable plate used for driving the lock block to move to realize unlocking, the lock shell is provided with a coded wheel assembly and a push assembly which can slide along the length direction of the lock shell, the push assembly is movably connected with the movable plate, the coded wheel assembly comprises a wheel shaft which can extend and retract along the length direction of the lock shell and a wheel shaft spring which is sleeved on the outer circumferential side of the wheel shaft, and the end of the wheel shaft is located on the sliding track of the push assembly; when the code is incorrect, the wheel shaft is in the extended state, and the end of the wheel shaft abuts against and limits the sliding of the push assembly, so that the locking is realized; when the code is correct, the wheel shaft is in the retractable state, the push assembly slides towards the unlocking direction and pushes the wheel shaft to retract, the wheel shaft spring is in the compressed state, the push assembly slides and drives the movable plate to move, the movable plate moves and drives the lock block to move to release the locking of the lock hook; when the locking is realized, the wheel shaft spring in the compressed state drives the wheel shaft to extend and reset, and the wheel shaft extending and resetting pushes the push assembly to reset.

[0009] The lock hook is provided with at least two first lock hooks and second lock hooks, the lock block is provided with at least two second lock blocks used for abutting against the first lock hook and the second lock block used for abutting against the second lock hook, and the movable plate is provided with at least two first movable plates used for driving the second lock block to move and second movable plates used for driving the second lock block to move.

[0010] The push assembly comprises a clutch block and a push body which can slide along the length direction of the lock shell, the clutch block is arranged on the side of the push body which faces the wheel shaft, and the clutch block can rotate relative to the push body; when the locking is realized, the wheel shaft abuts against the clutch block to limit the rotation of the clutch block; when the unlocking is realized, the push body slides and drives the clutch block to rotate, and the clutch block rotates to drive the wheel shaft to retract.

[0011] The middle part of the clutch block is provided with a hinge hole, the push body is provided with a guide groove which is located below the hinge hole, a rotating shaft is fixedly arranged in the lock shell, the top end of the rotating shaft is inserted into the hinge hole of the clutch block after penetrating through the guide groove of the push body, the clutch block can rotate relative to the rotating shaft, and the rotating shaft can slide along the length direction of the guide groove.

[0012] The push body is further provided with a front limiting slot and a rear limiting slot located at the front side and the rear side of the guide slot respectively, the bottom surface of the clutch block extends downward to form a front push rod inserted into the front limiting slot and a rear push rod inserted into the rear limiting slot, and the front push rod and the rear push rod are staggered and diagonally arranged in the length direction of the lock shell; when the lock is locked, the front push rod abuts against the right inner side wall of the front limiting slot, and the rear push rod abuts against the left inner side wall of the rear limiting slot; when the lock is unlocked, the push body slides to the left, the push body pushes the front push rod to rotate the clutch block in the clockwise direction, and the rear push rod slides along the rear limiting slot; when the lock is unlocked, the push body slides to the right, the push body pushes the rear push rod to rotate the clutch block in the clockwise direction, and the front push rod slides along the front limiting slot.

[0013] The push assembly comprises a lock cylinder mounted in the push body, the lock cylinder is rotatable relative to the push body, the bottom surface of the lock cylinder extends downward to form two spaced-apart actuating portions, and the two actuating portions are movably connected with the first movable plate and the second movable plate respectively; when the lock is unlocked, the lock cylinder is rotated, and the two actuating portions of the lock cylinder drive the first movable plate and the second movable plate to move away.

[0014] The first lock hook and the second lock hook each comprise a hook portion and a clamping portion, the hook portion is used for hooking the slide fastener piece, and the second lock block and the second lock block each comprise a lock block body provided with an unlocking slot; in the locked state, the clamping portion abuts against the side surface of the lock block body to limit the rotation of the hook portion; in the unlocked state, the clamping portion is aligned with the unlocking slot to release the rotation limitation of the hook portion.

[0015] The second lock block and the second lock block each extend downward to form an unlocking portion, the first movable plate and the second movable plate are each provided with an unlocking hole into which the unlocking portion is inserted, a second wedge surface is arranged in the unlocking hole, and the unlocking portion is provided with a first wedge surface complementary to the second wedge surface.

[0016] The lock shell comprises a bottom shell, a bottom plate and a face shell, the bottom plate is clamped at the bottom of the face shell and is placed into the bottom shell, and the bottom shell is fixedly connected with the face shell.

[0017] The USB socket module is fixedly mounted in the lock shell.

[0018] The multi-layer box bag slide fastener password lock has the following beneficial effects:

[0019] (1) The axle spring of the password wheel assembly itself serves as a reset member to automatically reset the sliding push body, without the need to additionally arrange a reset spring in the slide fastener password lock, so that the internal structure of the slide fastener password lock is simplified, the assembly process of the slide fastener password lock is simplified, and the problem of complex structure in the prior art is solved.

[0020] (2) The slide fastener password lock has a compact overall structure, a reasonable layout, a smooth unlocking and locking process, and quick and convenient operation, thereby enhancing the experience of consumers and improving the convenience of the slide fastener password lock. BRIEF DESCRIPTION OF DRAWINGS

[0021] The application is further described with the following drawings, but the embodiments in the drawings do not constitute any limitation to the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0022] Figure 1 The structure diagram of the multi-layer zipper password lock for luggage of the application.

[0023] Figure 2 The exploded view of the multi-layer zipper password lock for luggage of the application.

[0024] Figure 3 The structure diagram of the zipper password lock after hiding the USB socket module, the face shell and the bottom shell of the application.

[0025] Figure 4 The assembly diagram of the lock block and the lock hook of the application.

[0026] Figure 5 The assembly exploded view of the lock block and the lock hook of the application.

[0027] Figure 6 The structure diagram of Figure 3 The sectional view at A-A.

[0028] Figure 7 The exploded view of the push assembly of the application.

[0029] Figure 8 The structure diagram of the push assembly of the application.

[0030] Figure 9 The sectional view at B-B. Figure 8

[0031] Reference signs: face shell 11, bottom shell 12, bottom plate 13, USB socket module 14, lock hole 15, push body 21, lock core 22, actuating part 221, guide groove 200, front limiting groove 201, rear limiting groove 202, password wheel assembly 3, wheel shaft 31, wheel shaft spring 32, clutch block 4, rotating shaft 40, front push rod 41, rear push rod 42, lock hook seat 50, first lock hook 51, second lock hook 52, hook part 53, clamping part 54, hinged part 55, mounting ear 501, lock block body 610, second lock block 61, second lock block 62, unlocking groove 63, unlocking part 64, first wedge surface 65, first movable plate 71, second movable plate 72, unlocking hole 73, second wedge surface 74, clamping groove 75. DETAILED DESCRIPTION

[0032] The application is further described in combination with the following embodiments.

[0033] ​This invention provides an embodiment of a multi-layer zipper combination lock for bags, designed for use in existing multi-layer bags, such as... Figures 1 to 3 As shown, the zipper combination lock includes a lock shell, which comprises a front shell 11, a base plate 13, and a bottom shell 12. The bottom plate 13 is held in place at the bottom of the front shell 11 by a snap-fit ​​structure, specifically using a snap-fit ​​method with holes and protrusions. The bottom shell 12 and the front shell 11 are detachably connected, specifically by using screws for fastening. Furthermore, to facilitate charging or powering mobile electronic devices, the lock shell also includes a USB port module 14. It should be noted that the USB port module 14 has a power supply end and a charging end. The charging end allows for electrical connection of a charging cable to a power bank inside the bag, while the power supply end can use various USB ports of different specifications, allowing consumers to plug in a power cord to charge their mobile electronic devices.

[0034] This embodiment of the zipper combination lock is suitable for use with bags and luggage that have multiple layers. Therefore, this embodiment of the zipper combination lock has four keyholes 15, with each pair of keyholes 15 forming a group, located on the left and right sides of the zipper combination lock. Each keyhole 15 has a hook that is rotatably mounted in the lock case. For ease of understanding, the hook located on the left side of the lock case is called the first hook 51, and similarly, the hook located on the right side of the lock case is called the second hook 52. To achieve the anti-theft function, the lock case has locking blocks that abut against the hooks to lock the lock. The number of locking blocks is equal to the number of hooks, and each locking block cooperates with one hook. For ease of understanding, the block used to abut against the first hook 51 is called the second locking block 61, and the block used to abut against the second hook 52 is called the second locking block 62. It should be noted that the structures of the first hook 51 and the second hook 52 are basically the same, and the structures of the second locking blocks 61 and 62 are also basically the same.

[0035] To facilitate assembly and protect the lock block, combined with Figure 4 and Figure 5 The lock case also has a hook seat 50 that covers the lock blocks. Taking the structure of the second lock block 61 as an example, both second lock blocks 61 are installed in the same hook seat 50, and each second lock block 61 can slide in the hook seat 50 along the length direction perpendicular to the lock case. The top surface of the hook seat 50 extends upward to form a pair of mounting ears 501. Both sides of the first hook 51 extend outward to form columnar hinge parts 55. During assembly, the hinge parts 55 are placed on the top of the mounting ears 501, so that the hook seat 50 supports the first hook 51, and the first hook 51 can rotate relative to the lock case.

[0036] Please see Figure 4 and Figure 5, the first locking hook 51 comprises a hook portion 53 and a clamping portion 54, the hook portion 53 is used for hooking the zipper piece. The second locking block 61 and the second locking block 62 each comprise a straight strip-shaped locking block body 610, and the locking block body 610 is provided with an unlocking slot 63. In the locked state, the locking block body 610 of the second locking block 61 abuts against the clamping portion 54 of the first locking hook 51, at this time, the clamping portion 54 is misaligned with the unlocking slot 63, so as to limit the unlocking rotation of the first locking hook 51. When unlocking, the second locking block 61 moves along the width direction of the hook seat 50, after the unlocking slot 63 is aligned with the clamping portion 54, the clamping portion 54 can be placed into the unlocking slot 63, so that the first locking hook 51 rotates to realize unlocking. In order to enable the locking hook (the first locking hook 51 and the second locking hook 52) to automatically reset, the locking hook can also be provided with a torsional spring to drive the locking hook to rotate and reset. Similarly, in order to enable the locking block (the second locking block 61 and the second locking block 62) to automatically reset, a spring is arranged between the locking block body 610 and the hook seat 50.

[0037] In combination Figure 6 , in order to realize the unlocking movement of the second locking block 61 and the second locking block 62, the lock shell is further provided with a movable plate for driving the locking block to move. Similarly, the movable plate is provided with two, which are a first movable plate 71 for driving the second locking block 61 to move and a second movable plate 72 for driving the second locking block 62 to move. Figure 5 Taking the second locking block 61 as an example, the bottom surface of the second locking block 61 extends downwardly to form an unlocking portion 64, one end of the first movable plate 71 close to the second locking block 61 is provided with an unlocking hole 73 for inserting the unlocking portion 64, the unlocking hole 73 is provided with a second wedge surface 74, and the unlocking portion 64 is provided with a first wedge surface 65 complementary to the second wedge surface 74. It should be noted that, in order to realize that the first locking hook 51 and the second locking hook 52 can be independently controlled to unlock, please see Figure 6, the unlocking portion 64 of the second locking block 62 has a cross-sectional shape of a regular inverted trapezoid. It can be understood that the first locking hook 51 and the second locking hook 52 are centrosymmetric to each other, and the unlocking hole 73 of the first movable plate 71 and the unlocking hole 73 of the second movable plate 72 are also centrosymmetric to each other. The second wedge surface 74 of the first movable plate 71 is formed on the right side of the unlocking hole 73, and the second wedge surface 74 of the second movable plate 72 is formed on the left side of the unlocking hole 73. When the first movable plate 71 and the second movable plate 72 move to the left side at the same time, the second wedge surface 74 of the unlocking hole 73 of the first movable plate 71 abuts against the first wedge surface 65 of the unlocking portion 64 of the second locking block 61, so as to convert the transverse movement of the first movable plate 71 into the longitudinal movement of the second locking block 61, thereby realizing the unlocking of the first locking hook 51 by the second locking block 61. During the movement of the first movable plate 71 and the second movable plate 72 to the left side at the same time, the second wedge surface 74 of the unlocking hole 73 of the second movable plate 72 does not abut against the first wedge surface 65 of the unlocking portion 64 of the second locking block 62, so that the second locking hook 52 is not unlocked. When the first movable plate 71 and the second movable plate 72 move to the right side at the same time, the second locking hook 52 is unlocked, and the first locking hook 51 is always in the locked state.

[0038] In another embodiment, each of the lock holes 15 can be arranged on the left side or the right side of the push body 21. When two groups of lock holes 15 are arranged on the same side of the push body 21, one group or one lock hole 15 can be opened by the push body 21. To achieve this effect, the positions of the first movable plate 71 and the second movable plate 72 in the lock shell or the shape structure of one of the movable plates can be changed, so that the unlocking hole 73 of each movable plate extends to one side of the push body 21. According to the requirements, the inclination direction of the second wedge surface 74 of the movable plate or the first wedge surface 65 of the locking block is changed correspondingly, so that at least two groups of lock holes 15 can be arranged on the same side of the push body 21.

[0039] The zipper password lock of the embodiment needs to unlock the locking hook, so the movable plate must be moved. After the movable plate is moved, the locking block is dislocated from the locking hook, and then the locking hook can be unlocked. Therefore, the zipper password lock is provided with a push assembly for synchronously moving the first movable plate 71 and the second movable plate 72 along the length direction of the lock shell.

[0040] In combination with Figure 7The push assembly comprises a push body 21 and a lock cylinder 22, the lock cylinder 22 is rotatably installed in the push body 21, it should be explained that the lock cylinder 22 is a conventional pin tumbler lock, that is, after inserting the key, the lock cylinder 22 can be rotated relative to the push body 21, and without inserting the key, the lock cylinder 22 cannot be rotated. The push assembly can slide along the length direction of the lock shell, and the push assembly is movably connected with each movable plate, specifically, the bottom of the lock cylinder 22 extends downwardly two spaced-apart actuating portions 221, the end portion of the first movable plate 71 and the second movable plate 72 close to the actuating portion are both provided with clamping grooves 75 for inserting the actuating portions 221, and the two actuating portions 221 are respectively inserted into the clamping grooves 75 of the first movable plate 71 and the second movable plate 72, it should be explained that the actuating portions 221 are inserted into the clamping grooves 75, and the actuating portions 221 can slide along the clamping grooves 75, so as to convert the circumferential movement of the actuating portions 221 into the horizontal sliding movement of the movable plates, in another embodiment, the clamping grooves 75 can also be replaced by long holes, as long as the circumferential movement of the actuating portions 221 can be converted into the horizontal movement of the movable plates, so as to realize the movable connection between the push assembly and the movable plates. Therefore, without the blocking of other mechanisms, by pushing the push body 21 to the left or to the right, the push body 21 drives the lock cylinder 22 to slide leftward or rightward along the length direction of the lock shell, since the actuating portions 221 of the lock cylinder 22 hold each movable plate, the first movable plate 71 and the second movable plate 72 can be driven to move by pushing the push body 21 leftward or rightward, so as to realize the unlocking of the two groups of lock hooks on the left side or the right side.

[0041] In addition, since the lock cylinder 22 holds the first movable plate 71 and the second movable plate 72, and the first movable plate 71 and the second movable plate 72 are limited to slide leftward or rightward in the lock shell, when unlocking by using the key, the key is inserted and the lock cylinder 22 is rotated, the rotation of the lock cylinder 22 is converted into the opposite movement of the first movable plate 71 and the second movable plate 72, so as to synchronize the first lock hook 51 and the second lock hook 52 by the first movable plate 71 and the second movable plate 72. When locking, the lock cylinder 22 is only needed to be rotated in the opposite direction of unlocking, the lock cylinder 22 is rotated and drives the first movable plate 71 and the second movable plate 72 to synchronously reset, so as to complete the locking.

[0042] As an improvement, in combination with Figure 3The zipper password lock further comprises a password wheel assembly 3. The password wheel assembly 3 comprises a wheel shaft 31 arranged along the length direction of the lock shell and capable of reciprocating and retracting, and a wheel shaft spring 32 sleeved on the outer circumferential side of the wheel shaft 31. It should be noted that the password wheel assembly 3 is a conventional password wheel structure, and the wheel shaft spring 32 is an elastic reset member of the password wheel assembly 3 itself. When the password is correct, the wheel shaft 31 can reciprocate and retract, and when the password is incorrect, the wheel shaft 31 cannot retract and extend. The wheel shaft 31 is arranged on the side of the push body 21 and located on the movement track of the push body 21. Its working process is as follows: when the password is incorrect, the wheel shaft 31 is in the extended state, and the end of the wheel shaft 31 abuts against and limits the sliding of the push assembly, thereby achieving locking; when the password is correct, the wheel shaft 31 is in the retractable state, the push assembly slides towards the unlocking direction and pushes the wheel shaft 31 to retract, the wheel shaft spring 32 is in the compressed state, the push assembly slides and drives the movable plate to move, the movable plate moves and drives the lock block to move to release the locking of the lock hook; when locking, the wheel shaft 31 is driven to extend back by the wheel shaft spring 32 in the compressed state, and the wheel shaft 31 extends back to push the push back to the original position.

[0043] Since the push body 21 needs to move to the right to unlock the second lock hook 52 and move to the left to unlock the first lock hook 51, a password wheel assembly 3 needs to be arranged on the left side and the right side of the push body 21 respectively to limit the movement of the push body 21 to the left and to the right in the locked state. However, using two password wheel assemblies 3 will undoubtedly increase the manufacturing cost and the overall size of the zipper password lock. To solve the problem that a single password wheel assembly 3 cannot limit the movement of the push body 21 to the left and to the right in the locked state, the embodiment adds a clutch block 4. Specifically, in combination with Figure 8 and Figure 9 The push assembly is further provided with the clutch block 4. The clutch block 4 is installed on the side of the push body 21 facing the wheel shaft 31 and can rotate relative to the push body 21. As a preferred solution, a hinge hole is formed in the middle of the clutch block 4, the push body 21 is provided with a guide groove 200 located below the hinge hole, a rotating shaft 40 is fixedly connected in the lock shell (the top end surface of the bottom plate 13), the top end of the rotating shaft 40 passes through the guide groove 200 of the push body 21 and is inserted into the hinge hole of the clutch block 4, the clutch block 4 can rotate relative to the rotating shaft 40, and the rotating shaft 40 can slide along the length direction of the guide groove 200.

[0044] As a preferred solution, the push body 21 is further provided with a front limiting groove 201 and a rear limiting groove 202 located on the front side and the rear side of the guide groove 200 respectively, the bottom surface of the clutch block 4 extends downward to form a front push rod 41 inserted into the front limiting groove 201 and a rear push rod 42 inserted into the rear limiting groove 202, and the front push rod 41 and the rear push rod 42 are staggered and diagonally arranged in the length direction of the lock shell.

[0045] When locking, the front push rod 41 abuts against the right inner wall of the front limiting groove 201, and since the wheel shaft 31 is in the locked state, the wheel shaft 31 cannot perform the telescopic movement, so the push body 21 cannot move to the left side under the obstruction of the front limiting groove 201 and the front push rod 41, and the rear push rod 42 abuts against the left inner wall of the rear limiting groove 202, so the push body 21 cannot move to the right side under the obstruction of the rear limiting groove 202 and the rear push rod 42, thereby achieving the locking, and by arranging the clutch block 4, the single password wheel assembly 3 can be used to limit the movement of the push body 21 to the left and to the right. When unlocking, the wheel shaft 31 can perform the telescopic movement, and the push body 21 slides to the left, and the push body 21 pushes the front push rod 41 to rotate the clutch block 4 in the clockwise direction, and the rear push rod 42 slides along the rear limiting groove 202; when the push body 21 slides to the right, the push body 21 pushes the rear push rod 42 to rotate the clutch block 4 in the clockwise direction, and the front push rod 41 slides along the front limiting groove 201. It should be noted that as long as the wheel shaft 31 is in the unlocked state, no matter whether the push body 21 slides to the left or to the right, the clutch block 4 will rotate and abut against the end of the wheel shaft 31, thereby assisting the push body 21 to unlock, so that the required force for unlocking is smaller, and the unlocking process is smoother and more stable.

[0046] In another embodiment, if the push body 21 is provided with the locking hook only on one side, the clutch block 4 can not be arranged.

[0047] It should be noted that the clutch block 4 and the push body 21 are limited by the limiting grooves and the push rods, so that in the locked state, the push body 21 can always be located in the middle position of the operation cavity of the face shell 11 (the operation cavity is a through hole arranged in the face shell 11, mainly used for mounting the push body 21 and sliding the push body 21 to the left or to the right), replacing the previous way of using a spring or other elastic member to limit the push of the push body 21. In the traditional scheme, due to the elastic force of the spring itself, the push body 21 cannot be centered, and the push body 21 will always be subjected to the elastic force of the spring (elastic member) after returning, which will cause the push body 21 to always deviate to the left or to the right in the operation cavity of the face shell 11. In the present embodiment, in addition to being able to control the movement of the push body 21 to the left and to the right by using a single password wheel assembly 3, the clutch block 4 can also limit the push body 21, so that the push body 21 can always be kept in the position before unlocking after returning, and the push body 21 can be kept in the centered position after returning.

[0048] The multi-layer luggage zipper coded lock of the embodiment can automatically reset the sliding pusher after sliding by using the wheel shaft spring 32 of the coded wheel assembly 3 as a reset member. The wheel shaft spring 32 is sleeved on the wheel shaft body 31, so that the wheel shaft spring 32 only expands and contracts in the axial direction. The conventional reset spring is easily twisted because the middle part of the reset spring is not supported by other auxiliary components. The middle part of the wheel shaft spring 31 cannot be twisted or bent, so that the reset of the pusher body 21 is more reliable and has a longer service life compared with the conventional reset spring. The reset spring does not need to be additionally arranged in the zipper coded lock, so that the internal structure of the zipper coded lock is simplified, the assembly process of the zipper coded lock is simplified, and the problem of the complex structure is solved. The overall structure of the zipper coded lock is compact and reasonable, the unlocking and locking processes are smooth, the operation is fast and convenient, the experience of consumers is enhanced, and the convenience of the zipper coded lock is improved.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the scope of protection of the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the present application.

Claims

1. A multi-layer zipper combination lock for bags, comprising a lock housing, a lock hook rotatably mounted within the lock housing, a lock block for engaging with the lock hook to lock, and a movable plate for moving the lock block to unlock, characterized in that: The lock shell is provided with a password wheel assembly and a push assembly which can slide along the length direction of the lock shell, the push assembly is movably connected with the movable plate, the password wheel assembly comprises a wheel shaft which can extend and retract along the length direction of the lock shell and a wheel shaft spring which is sleeved on the outer circumferential side of the wheel shaft, the end of the wheel shaft is located on the sliding track of the push assembly; When the password is incorrect, the wheel shaft is in the extended state, and the end of the wheel shaft abuts against and limits the sliding of the push assembly, thereby achieving locking; When the password is correct, the wheel shaft is in the retractable state, the push assembly slides towards the unlocking direction and pushes the wheel shaft to retract, the wheel shaft spring is in the compressed state, the push assembly slides and drives the movable plate to move, the movable plate moves and drives the lock block to move to release the locking of the lock hook; When the lock is locked, the wheel shaft spring in the compressed state drives the wheel shaft to extend and reset, the wheel shaft extension reset pushes the push assembly to reset; The lock hook is provided with at least two, which are respectively a first lock hook and a second lock hook; the lock block is provided with at least two, which are respectively a second lock block for abutting against the first lock hook and a second lock block for abutting against the second lock hook; the movable plate is provided with at least two, which are respectively a first movable plate for driving the second lock block for abutting against the first lock hook to move and a second movable plate for driving the second lock block for abutting against the second lock hook to move; the first lock hook and the second lock hook are respectively arranged on the left side and the right side of the push body; The push assembly comprises a clutch block and a push body which can slide along the length direction of the lock shell, the clutch block is installed on the side of the push body facing the wheel shaft, and the clutch block can rotate relative to the push body; when the lock is locked, the wheel shaft abuts against the clutch block to limit the rotation of the clutch block; when the lock is unlocked, the push slides and drives the clutch block to rotate, the clutch block rotates to push the wheel shaft to retract.

2. The multi-layer zipper combination lock for luggage according to claim 1, wherein: The middle part of the clutch block is provided with a hinge hole, the push body is provided with a guide groove located below the hinge hole, a rotating shaft is fixedly connected in the lock shell, the top end of the rotating shaft penetrates through the guide groove of the push body and is inserted into the hinge hole of the clutch block, the clutch block can rotate relative to the rotating shaft, and the rotating shaft can slide along the length direction of the guide groove relative to the guide groove.

3. A multi-layer zipper combination lock for luggage according to claim 2, characterized in that: The push body is also provided with a front limiting groove and a rear limiting groove located on the front side and the rear side of the guide groove respectively, the bottom surface of the clutch block extends downward to form a front push rod inserted into the front limiting groove and a rear push rod inserted into the rear limiting groove, and the front push rod and the rear push rod are staggered and diagonally arranged in the length direction of the lock shell; When the lock is locked, the front push rod abuts against the right inner side wall of the front limiting groove, and the rear push rod abuts against the left inner side wall of the rear limiting groove; When the lock is unlocked, the push body slides to the left side, the push body pushes the front push rod to make the clutch block rotate in the clockwise direction, and the rear push rod slides along the rear limiting groove; when the lock is unlocked, the push body slides to the right side, the push body pushes the rear push rod to make the clutch block rotate in the clockwise direction, and the front push rod slides along the front limiting groove.

4. The multi-layer zipper combination lock for luggage according to claim 1, wherein: The push assembly comprises a lock cylinder mounted in the push body, the lock cylinder is rotatable relative to the push body, the bottom surface of the lock cylinder extends downward two spaced-apart push parts, the two push parts are respectively connected with the first movable plate and the second movable plate; When unlocking, the lock cylinder rotates, the two push parts of the lock cylinder drive the first movable plate and the second movable plate to move backward.

5. The multi-layer zipper combination lock for luggage according to claim 1, wherein: The first and second lock hooks each comprise a hook part and a clamping part, the hook part is used for hooking the zipper piece; the second lock block for abutting against the first lock hook and the second lock block for abutting against the second lock hook each comprise a lock block body, the lock block body is provided with an unlocking slot; In the locking state, the clamping part abuts against the side surface of the lock block body to limit the rotation of the hook part; In the unlocking state, the clamping part is aligned with the unlocking slot to release the rotation limitation of the hook part.

6. The multi-layer zipper combination lock for luggage according to claim 1 or 5, wherein: The second lock block for abutting against the first lock hook and the second lock block for abutting against the second lock hook each downwardly extend an unlocking part, the first and second movable plates are each provided with an unlocking hole for inserting the unlocking part, the unlocking hole is provided with a second wedge surface, the unlocking part is provided with a first wedge surface complementary to the second wedge surface.

7. The multi-layer zipper combination lock for luggage according to claim 1, wherein: The lock shell comprises a bottom shell, a bottom plate and a face shell, the bottom plate is clamped at the bottom of the face shell and is placed in the bottom shell, the bottom shell is fixedly connected with the face shell.

8. The multi-layer zipper combination lock for luggage according to claim 1, wherein: Further comprising a USB socket module, the USB socket module is fixedly installed in the lock shell.

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