Multi-layer luggage coded lock

Abstract

The present application relates to the technical field of lock, in particular to a multi-layer suitcase password lock, which comprises a lock shell, a lock tongue rotatably installed in the lock shell, a lower lock block used for abutting against the lock tongue to realize unlocking, and a lower movable block slidably arranged along the length direction of the lock shell and clamped with the lower lock block, the lock shell is provided with a password wheel assembly and a push assembly slidably arranged along the length direction of the lock shell, the push assembly is movably connected with the lower movable block, the password wheel assembly comprises a wheel shaft arranged along the length direction of the lock shell and capable of telescopic movement, and a wheel shaft spring 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 placement direction of the lock tongue is perpendicular to the sliding direction of the push assembly. The 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 sliding push assembly, without adding a reset spring inside the password lock, so as to simplify the internal structure of the password lock, simplify the assembly process of the password lock, and solve the problem of complex structure in the past.

Description

TECHNICAL FIELD

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

[0002] In order to facilitate the classification and storage of articles, the current market luggage is a 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 the zipper piece, and each lock hole is provided with a lock hook for hooking the zipper piece.

[0003] At present, due to the popularity of notebook computers, many people will carry notebook computers when going out. In order to carry conveniently and prevent theft of the notebook computer, the market has appeared a luggage capable of storing a notebook computer and locking to prevent theft, that is, a front cover is arranged on one side of the box body, the front cover and the box body form a partition layer for storing the notebook computer, the front cover is provided with a lock catch, and the zipper password lock is provided with a lock tongue connected with the lock catch, so that the zipper password lock can not only lock the conventional zipper piece, but also can prevent theft of the partition layer for storing the notebook computer.

[0004] This type of zipper password lock generally has a push device (button / switch), when the password is correct, the push device is manually moved towards the unlocking direction, the movement of the push device controls the lock tongue or the lock hook to flip through the transmission structure in the lock, so that the lock catch can be released from the locking of the lock tongue or the zipper piece can be released from the clamping of the lock hook, thereby achieving unlocking.

[0005] In order to facilitate the automatic return of the push device after unlocking, the market 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 drives the push device to return by its own elastic force, so that the push device can automatically return without being pushed by the hand. Therefore, the zipper password lock in the prior art generally adds a return spring to drive the push device to return, which is generally 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, which undoubtedly leads to a too complex structure of the zipper password lock and a more troublesome assembly process.

[0006] For the luggage capable of storing a notebook computer, the push device moves to the left side to unlock the lock hook for buckling the zipper piece, and the push device moves to the right side to unlock the lock tongue for buckling the lock catch of the front cover, therefore, two return springs need to be arranged, which undoubtedly increases the manufacturing cost of the zipper password lock and makes the internal structure of the zipper password lock more complex. SUMMARY

[0007] The purpose of this invention is to address the shortcomings of existing technologies by providing a multi-layer combination lock for bags, which solves the problem of complex structures in previous technologies.

[0008] The objective of this invention is achieved through the following technical solution:

[0009] A multi-layer combination lock for bags is provided, including a lock shell, a bolt rotatably mounted within the lock shell, a lower locking block for abutting against the bolt to unlock, and a lower movable block that slides along the length of the lock shell and engages with the lower locking block. The lock shell has a combination wheel assembly and a pusher assembly that slides along the length of the lock shell. The pusher assembly is movably connected to the lower movable block. The combination wheel assembly includes a wheel axle arranged along the length of the lock shell and retractable, and a wheel axle spring sleeved on the outer periphery of the wheel axle. The end of the wheel axle is located on the sliding trajectory of the pusher assembly. The bolt release... When the direction is perpendicular to the sliding direction of the push assembly, if the password is incorrect, the axle is in the extended state, and the end of the axle abuts against and restricts the sliding of the push assembly, thus locking; if the password is correct, the axle is in the retractable state, the push assembly slides in the unlocking direction and pushes the axle to retract, the axle spring is in the compressed state, the push assembly slides and drives the lower movable block to move, the lower movable block moves and drives the lower locking block to move and release the lock tongue; when locking, the compressed axle spring drives the axle to extend back to its original position, the extended axle pushes the push assembly back to its original position.

[0010] The push assembly includes a clutch and a push body that can slide along the length of the lock case. The clutch is installed on the side of the push body facing the wheel axle and can rotate relative to the push body. When locked, the wheel axle abuts against the clutch to restrict the rotation of the clutch. When unlocked, the push slides and pushes the clutch to rotate, and the rotation of the clutch pushes the wheel axle to retract.

[0011] The clutch has a hinge hole in the middle, the pusher body has a guide groove below the hinge hole, and a rotating shaft is fixed inside the lock housing. The top end of the rotating shaft passes through the guide groove of the pusher body and is inserted into the hinge hole of the clutch. The clutch can rotate relative to the rotating shaft, and the rotating shaft can slide relative to the guide groove along the length of the guide groove.

[0012] The pusher body also has a front limiting groove and a rear limiting groove located on the front and rear sides of the guide groove, respectively. The bottom surface of the clutch 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. The front push rod and the rear push rod are staggered and diagonally arranged along the length of the lock housing. When locking, the front push rod abuts against the right inner wall of the front limiting groove, and the rear push rod abuts against the left inner wall of the rear limiting groove. When unlocking, the pusher body slides to the left, pushes the front push rod to make the clutch rotate clockwise, and the rear push rod slides along the rear limiting groove. When unlocking, the pusher body slides to the right, pushes the rear push rod to make the clutch rotate clockwise, and the front push rod slides along the front limiting groove.

[0013] The push assembly comprises a lock cylinder installed in the push body, the lock cylinder is rotatable relative to the push body, a bottom plate of the lock cylinder extends downward to form a first pushing part, the end of the first pushing part is provided with a clamping groove, and the first pushing part is inserted into the clamping groove and is slidable along the clamping groove; when unlocking, the lock cylinder is rotated, and the first pushing part of the lock cylinder drives the lower movable block to slide along the length direction of the lock shell.

[0014] The lock shell is further provided with a rotatable lock hook, an upper locking block for abutting against the lock hook to realize locking, and an upper movable block for driving the upper locking block to slide, the upper movable block is slidable along the length direction of the lock shell and is arranged side by side with the lower movable block, the bottom surface of the lock cylinder extends downward to form a second pushing part which is arranged in parallel with the first pushing part, and the second pushing part is movably connected with the upper movable block; the placement direction of the lock hook is parallel to the sliding direction of the push body; when the lock cylinder is unlocked, the lock cylinder is rotated, the second pushing part of the lock cylinder drives the upper movable block to slide along the lock shell, the upper movable block slides and drives the upper locking block to slide to release the locking of the lock hook by the upper locking block, and unlocking is realized; when the password wheel assembly is unlocked, the push body slides towards the unlocking direction, the push body slides and drives the upper movable block to slide, the upper movable block slides and drives the upper locking block to slide to release the locking of the lock hook by the upper locking block, and unlocking is realized.

[0015] The lock hook comprises a hook part and a clamping part, the hook part is used for hooking the slide fastener piece, the upper locking block is provided with an unlocking slot, the upper locking block extends downward to form an unlocking part, the upper movable block is 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 which is complementary to the second wedge surface, in the upper locking state, the clamping part abuts against the side surface of the upper locking block to limit the rotation of the hook part, and in the unlocking state, the clamping part is aligned with the unlocking slot to release the rotation limitation of the hook part.

[0016] The end of the lower movable block away from the first pushing part extends downward to form a clamping arm, the lower locking block is provided with a clamping hole for inserting the clamping arm, and the clamping arm is inserted into the clamping hole; the end of the lower locking block is formed with a guide inclined surface which is inclined upward, a torsion spring is arranged between the lock bolt and the lock shell to drive the lock bolt to flip towards the upper locking state, one end of the lock bolt is formed with a hook part for buckling the external lock, and the other end of the lock bolt is suspended; in the upper locking state, the upper end of the guide inclined surface abuts against the suspended end of the lock bolt; in the unlocking state, the lower end of the guide inclined surface abuts against the suspended end of the lock bolt to make the lock bolt flip towards the unlocking state.

[0017] The lock shell comprises a first lock shell and a second lock shell fixedly installed on the bottom surface of the first lock shell, the push assembly, the password wheel assembly and the lower movable block are all installed in the first lock shell, the lock bolt and the lower locking block are all installed in the second lock shell, the clamping arm of the lower movable block passes through the bottom of the first lock shell, and the clamping hole of the lower locking block passes through the top of the second lock shell.

[0018] Among them, the USB socket module is fixedly installed in the lock shell.

[0019] The multi-layer luggage coded lock has the following beneficial effects:

[0020] (1) The wheel shaft spring of the code wheel assembly itself as a reset member can automatically reset the sliding push after sliding, without adding a reset spring inside the coded lock, thereby simplifying the internal structure of the coded lock and the assembly process of the coded lock, and solving the problem of complex structure in the past.

[0021] (2) The overall structure of the coded lock is compact, the layout is reasonable, the unlocking and locking processes are smooth, the operation is quick and convenient, the experience of consumers is enhanced, and the convenience of the coded lock is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] The application is further described by using the drawings, but the embodiments in the drawings do not constitute any limitation on the application, and other drawings can be obtained by the ordinary skilled in the art without creative labor on the basis of the following drawings.

[0023] Figure 1 It is a structural schematic view of the multi-layer luggage coded lock of the application.

[0024] Figure 2 It is an exploded view of the multi-layer luggage coded lock of the application.

[0025] Figure 3 It is a structural schematic view of the coded lock after hiding the USB socket module, the first lock shell and the second lock shell.

[0026] Figure 4 It is an assembly view of the locking block and the lock hook.

[0027] Figure 5 It is an assembly exploded view of the locking block and the lock hook.

[0028] Figure 6 It is Figure 3 the sectional view at A-A.

[0029] Figure 7 It is an exploded view of the push assembly.

[0030] Figure 8 It is a structural schematic view of the push assembly.

[0031] Figure 9 It is Figure 8 the sectional view at B-B.

[0032] Figure 10 It is an assembly view of the locking block and the lock tongue.

[0033] Reference signs: first lock shell 11, face shell 111, bottom shell 112, bottom plate 113, second lock shell 12, top plate 121, base 122, lock hole 13, USB socket module 14, buckle hole 15, push body 21, lock core 22, first dialing part 23, second dialing part 24, guide slot 200, front limiting slot 201, rear limiting slot 202, password wheel assembly 3, wheel shaft 31, wheel shaft spring 32, clutch 4, rotating shaft 40, front push rod 41, rear push rod 42, lock hook base 50, lock hook 5, hook part 53, clamping part 54, hinged part 55, lock hook base 50, mounting lug 501, locking block 6, unlocking slot 61, unlocking part 62, first wedge surface 63, upper movable block 71, lower movable block 72, clamping arm 721, clamping slot 722, unlocking hole 73, second wedge surface 74, clamping hole 75, lock bolt 8, clasp part 81, lower lock block 9, clamping hole 91, guide inclined surface 92. DETAILED DESCRIPTION

[0034] The application is further described in connection with the following examples.

[0035] An embodiment of the multi-layer password lock for luggage bags of the application is described by taking a zipper password lock capable of locking both zipper pieces and front cover buckles as an example, as shown in Figures 1 to 3As shown, the password lock comprises a lock shell, the lock shell comprises a first lock shell 11 and a second lock shell 12 fixedly installed on the bottom surface of the first lock shell 11, the first lock shell 11 and the second lock shell 12 can adopt an integrated structure or a split structure, in the embodiment, the first lock shell 11 comprises a face shell 111, a bottom plate 113 and a bottom shell 112, the face shell 111 is arranged on the top surface of the bottom shell 112, and the bottom plate 113 is arranged inside the bottom shell 112. The second lock shell 12 comprises a base 122 and a top plate 121 arranged on the top surface of the base 122, in order to save assembly steps and strengthen the structural strength of the lock shell, the top plate 121 of the second lock shell 12 and the bottom shell 112 of the first lock shell 11 adopt an integrated structure, and the shell formed by the bottom shell 112 and the top plate 121 is a hollow structure. Since there is a height difference between the first lock shell 11 and the second lock shell 12 in the height direction, the lock shell is more suitable for bags with a partition, the second lock shell 12 can match the front cover of the bag, so that the partition of the bag is more convenient to lock. In addition, the bottom plate 113 is clamped at the bottom of the face shell 111 through a clamping structure, which can adopt a clamping hole 91 and a clamping convex buckle. The bottom shell 112 is detachably connected with the base 122 through the top plate 121, and the base 122 is detachably connected with the face shell 111, and the base 122 and the face shell 111 and the top plate 121 and the base 122 can be detachably connected by adopting a screw fastening mode. In addition, in order to facilitate the user to charge or power the mobile electronic device, the first lock shell 11 is also provided with a USB socket module 14, it should be pointed out that the USB socket module 14 is provided with a power supply end and a charging end, the charging end can be electrically connected with the charging wire and the mobile power supply in the bag, and the power supply end can be various USB sockets of different specifications, so that consumers can plug in the power line to charge the mobile electronic device.

[0036] The password lock of the embodiment is suitable for bags with a multi-layer structure, therefore, the password lock of the embodiment has two lock holes 13, the two lock holes 13 are arranged at the face shell 111 of the first lock shell 11, and each lock hole 13 is provided with a lock hook 5 rotatably installed in the first lock shell 11, and the lock hook 5 and the first lock shell 11 are provided with an elastic member for driving the lock hook 5 to flip to the locking state. In order to realize the anti-theft function, the lock shell is provided with a locking block 6 for abutting against the lock hook 5 to realize locking, the number of the locking blocks 6 is equal to the number of the lock hooks 5, and each locking block cooperates with a lock hook 5.

[0037] In order to facilitate assembly and protect the locking block 6, in combination with Figure 4 and Figure 5The first lock shell 11 is further provided with a lock hook base 50 covering the upper locking block 6. The lock hook base 50 is fixed by being pressed by the face shell 111 of the first lock shell 11. Both of the upper locking blocks 6 are installed in the same lock hook base 50, and each upper locking block 6 can slide in the lock hook base 50 in a direction perpendicular to the length direction of the first lock shell 11. The top end of the lock hook base 50 extends outwardly in a pair of mounting ears 501. The two side surfaces of the lock hook 5 extend outwardly in a pair of cylindrical hinge portions 55. During assembly, the hinge portions 55 are supported on the top end of the mounting ears 501, so that the lock hook base 50 supports the lock hook 5, and the lock hook 5 can rotate relative to the first lock shell 11.

[0038] See Figure 4 and Figure 5 The lock hook 5 includes a hook portion 53 and a clamping portion 54. The hook portion 53 is used for hooking the zipper slide. The upper locking block 6 includes a straight bar-shaped locking block body, and the locking block body is provided with an unlocking slot 61. In the locked state, the locking block body of the upper locking block 6 abuts against the clamping portion 54 of the lock hook 5. At this time, the clamping portion 54 is misaligned with the unlocking slot 61, so as to limit the rotation of the lock hook 5 to unlock. During unlocking, the upper locking block 6 moves in the width direction of the lock hook base 50. After the unlocking slot 61 is aligned with the clamping portion 54, the clamping portion 54 can be inserted into the unlocking slot 61, so that the rotation of the lock hook 5 is not limited, and the lock hook 5 can be unlocked. The elastic member can drive the lock hook 5 to automatically return. Similarly, in order to enable the upper locking block 6 to automatically return, an elastic member is arranged between the upper locking block 6 and the lock hook base 50.

[0039] In combination Figure 6 In order to enable the upper locking block 6 to move to unlock, the lock shell is further provided with an upper movable block 71 for driving the upper locking block 6 to move. The bottom surface of the upper locking block 6 extends downwardly in an unlocking portion 62. The one end of the upper movable block 71 close to the upper locking block 6 is provided with an unlocking hole 73 for inserting the unlocking portion 62. The unlocking hole 73 is provided with a second wedge surface 74. The unlocking portion 62 is provided with a first wedge surface 63 complementary to the second wedge surface 74. As a preferred scheme, the cross-sectional shape of the unlocking portion 62 of the upper locking block 6 is trapezoidal. During work, when the upper movable block 71 moves to the right, the second wedge surface 74 of the unlocking hole 73 of the upper movable block 71 abuts against the first wedge surface 63 of the unlocking portion 62 of the upper locking block 6, so as to convert the transverse movement of the upper movable block 71 into the longitudinal movement of the upper locking block 6, thereby enabling the upper locking block 6 to release the rotation limitation of the lock hook 5, and realizing the unlocking of the lock hook 5.

[0040] In order to unlock the lock hook 5 of the password lock, the upper movable block 71 must be moved. The movement of the upper movable block 71 drives the upper locking block 6 to be misaligned with the lock hook 5, so that the lock hook 5 can be unlocked. Therefore, the password lock is provided with a push assembly for pushing the upper movable block 71 to move in the length direction of the lock shell.

[0041] In combination Figure 7, the 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 the lock cylinder 22 cannot be rotated without inserting the key. The push assembly can slide along the length direction of the first lock shell 11, and the push assembly is clamped with the upper movable block 71, specifically, the bottom of the lock cylinder 22 extends downwardly to form two spaced first and second driving portions 23 and 24, and the end of the upper movable block 71 close to the second driving portion 24 is provided with a clamping hole for inserting the second driving portion 24, the clamping hole is a long hole, and the second driving portion 24 can slide along the length direction of the clamping hole after being inserted into the clamping hole, so that the movable connection between the push assembly and the upper movable block 71 is realized. Thus, without the blocking of other mechanisms, by pushing the push body 21 to the left, the push body 21 drives the lock cylinder 22 to slide to the left along the length direction of the first lock shell 11, since the second driving portion 24 of the lock cylinder 22 clamps the upper movable block 71, the push body 21 is pushed to slide to drive the upper movable block 71 to move, thereby realizing the unlocking of the lock hook 5.

[0042] In addition, since the lock cylinder 22 clamps the upper movable block 71, and the upper movable block 71 is limited to slide along the length direction of the first lock shell 11, 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 horizontal sliding of the upper movable block 71, so that the lock hook 5 is unlocked by the upper movable block 71. When locking, only the lock cylinder 22 is rotated in the opposite direction of unlocking, the lock cylinder 22 is rotated to drive the upper movable block 71 to reset, thereby completing the locking.

[0043] In the embodiment, please see Figures 1 to 2 , the side surface of the second lock shell 12 is provided with two spaced clamping holes 15, and each clamping hole 15 is provided with a lock tongue 8 which can rotate relative to the second lock shell 12, it should be explained that the rotatable installation mode of the lock tongue 8 can adopt the structure that the lock hook 5 is rotatably installed in the first lock shell 11, similarly, in order to facilitate the automatic reset of the lock tongue 8, the torsional spring for driving the lock tongue 8 to flip to the locking state is arranged between the lock tongue 8 and the second lock shell 12.

[0044] Combined with Figure 10 , the end of the lock tongue 8 close to the clamping hole 15 forms a hook portion 81 for clamping the external lock buckle, and the other end of the lock tongue 8 is suspended, that is, there is a certain distance between the end of the lock tongue 8 and the inner bottom surface of the second lock shell 12, which is similar to a lever structure. Combined with Figures 8 to 9The second lock shell 12 is further provided with a lower lock block 9 which is slidable along the length direction of the second lock shell 12. As an optional solution, the lower lock block 9 is in a T shape. The end of the lower lock block 9 facing the lock tongue 8 is provided with a guide slope 92 which is inclined upward. In the locked state, the upper end of the guide slope 92 abuts against the free end of the lock tongue 8. During the unlocking process, the guide slope 92 of the lower lock block 9 interferes with the movement of the free end of the lock tongue 8 to drive the lock tongue 8 to gradually turn to the unlocked state. In the unlocked state, the lower end of the guide slope 92 abuts against the free end of the lock tongue 8.

[0045] It should be noted that the push assembly, the lock hook 5, the upper lock block 6, the lock hook seat 50 and the upper movable block 71 are all installed in the first lock shell 11, while the lock tongue 8 and the lower lock block 9 are installed in the second lock shell 12. In order to enable the push assembly to drive the lower lock block 9 to move, the first lock shell 11 is further provided with a lower movable block 72 which is slidable along the length direction of the first lock shell 11. The end of the lower movable block 72 away from the push body 21 extends a clamping arm 721 which penetrates through the bottom of the first lock shell 11. The middle part of the lower lock block 9 extends a clamping hole 91 upward which penetrates through the top of the second lock shell 12. The clamping arm 721 extends toward the clamping hole 91 and is inserted into the clamping hole 91, thereby connecting the lower movable block 72 and the lower lock block 9 into one body. When the lower movable block 72 slides horizontally, the lower lock block 9 will slide horizontally as well.

[0046] In combination with Figure 7 and Figure 10 The bottom of the lock cylinder 22 extends a first driving part 23 which is spaced apart from the second driving part 24. The end of the lower movable block 72 close to the first driving part 23 is provided with a clamping groove for the insertion of the first driving part 23. After the first driving part 23 is inserted into the clamping groove, the first driving part 23 can slide along the length direction of the clamping groove, thereby achieving the movable connection between the push assembly and the lower movable block 72. Thus, without the obstruction of other mechanisms, by pushing the push body 21 to the right, the push body 21 will drive the lock cylinder 22 to slide to the right along the length direction of the first lock shell 11. Since the first driving part 23 of the lock cylinder 22 clamps the lower movable block 72, pushing the push body 21 to slide will drive the lower movable block 72 to move, thereby achieving the unlocking of the lock tongue 8.

[0047] In addition, since the lock cylinder 22 clamps the lower movable block 72, and the lower movable block 72 is limited to slide along the length direction of the second lock shell 12, when unlocking with a key, the key is inserted and the lock cylinder 22 is rotated. The rotation of the lock cylinder 22 will be converted into the horizontal sliding of the lower movable block 72, thereby unlocking the lock tongue 8 by the lower movable block 72. When locking, only need to rotate the lock cylinder 22 in the opposite direction of unlocking, the lock cylinder 22 is rotated and drives the lower movable block 72 to reset, thereby completing the locking.

[0048] As an improvement, see Figure 3 , the 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 movement, 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 a resilient return 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. 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 push sliding to achieve 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 lower movable block 72 or the upper movable block 71 to move, and the movement of the upper movable block 71 or the lower movable block 72 drives the corresponding lock block or lock tongue 8 to move; when locking, the wheel shaft spring 32 in the compressed state drives the wheel shaft 31 to extend and reset, and the extension and reset of the wheel shaft 31 pushes the push body 21 to reset.

[0049] In order to make the operation of the password lock more humanized, the movement of the push body 21 needs to be designed as follows: moving to the right to separately unlock the lock tongue 8 in the second lock shell 12 and moving to the left to separately unlock the lock hook 5 in the first lock shell 11. The traditional design idea is to arrange one password wheel assembly 3 on the left side and the right side of the push body 21 respectively, which are used 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 undoubtedly increases the manufacturing cost and the overall size of the 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 4. Specifically, in combination with Figure 8 and Figure 9 , the push assembly further comprises a clutch 4, which 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, the middle part of the clutch 4 is provided with a hinge hole, the push body 21 is provided with a guide groove 200 located below the hinge hole, a rotating shaft 40 is fixed in the first lock shell 11 (the top end surface of the bottom plate 113), 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 4, the clutch 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.

[0050] As preferred, the push body 21 is further provided with a front limiting slot 201 and a rear limiting slot 202 located at the front side and the rear side of the guide slot 200 respectively, the bottom surface of the clutch 4 extends downwardly to a front push rod 41 inserted into the front limiting slot 201 and a rear push rod 42 inserted into the rear limiting slot 202, the front push rod 41 and the rear push rod 42 are staggered and diagonally arranged in the length direction of the lock shell.

[0051] When locking, the front push rod 41 abuts against the right inner side wall of the front limiting slot 201, since the wheel shaft 31 is in the locking state, the wheel shaft 31 cannot perform the telescopic movement, thus the push body 21 cannot move to the left side under the obstruction of the front limiting slot 201 and the front push rod 41, and the rear push rod 42 abuts against the left inner side wall of the rear limiting slot 202, thus the push body 21 cannot move to the right side under the obstruction of the rear limiting slot 202 and the rear push rod 42, thereby achieving the locking, and by arranging the clutch 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, the push body 21 slides to the left side, the push body 21 pushes the front push rod 41 to rotate the clutch 4 in the clockwise direction, and the rear push rod 42 slides along the rear limiting slot 202; when the push body 21 slides to the right side, the push body 21 pushes the rear push rod 42 to rotate the clutch 4 in the clockwise direction, and the front push rod 41 slides along the front limiting slot 201. It should be noted that no matter whether the push body 21 slides to the left side or to the right side, as long as the wheel shaft 31 is in the unlocking state, the clutch 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.

[0052] It should be noted that the clutch 4 and the push body 21 are limited by the limiting slots and the push rods, so that in the locking state, the push body 21 can always be located at the middle position of the operation cavity of the face shell 11 (the operation cavity is a through hole provided 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 body 21, in the traditional scheme, due to the elastic force of the spring itself, the push body 21 cannot be centered, and after the push body 21 returns, the push body 21 will always be subjected to the elastic force of the spring (elastic member), 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, and in the present embodiment, in addition to being able to control the push body 21 to be unable to move to the left and to the right by using a single password wheel assembly 3, the clutch 4 can also limit the push body 21, so that after the push body 21 returns, the push body 21 can always be kept at the position before being unlocked, and the push body 21 can be kept at the centered position after returning.

[0053] In another embodiment, if the combination lock does not need to set the lock hook 5, i.e. the combination lock removes the function of locking the outer zipper sheet, the lock hook 5, the locking block 6 and the upper movable block 71 are not needed, only the lock shell, the push assembly, the combination wheel assembly 3, the lower movable block 72, the lower locking block 9, the clutch 4 and the lock tongue 8 are reserved, i.e. a combination lock for locking the outer front cover lock is composed, and when only the lock hook 5 or the lock tongue 8 is needed, i.e. the push body 21 only needs to move in one direction (right or left) to unlock, the clutch 4 also does not need to be set.

[0054] The combination wheel assembly 3 of the multi-layer combination lock for luggage is provided with the wheel shaft spring 32 as a reset member, which can automatically reset the sliding push after the sliding, 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 is not supported by other auxiliary components, the middle part of the wheel shaft spring 31 cannot be twisted or bent, so compared with the conventional reset spring driving the push body 21 to reset, the wheel shaft spring 31 is more reliable and has a longer service life, so that the push cannot be normally driven to reset, the reset spring does not need to be additionally arranged in the combination lock, thereby simplifying the internal structure of the combination lock and the assembly process of the combination lock, and solving the problem of the complex structure in the prior art. The overall structure of the combination lock is compact, the layout is 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 combination lock is improved.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited to the scope 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 present application.

Claims

1. A multi-layer combination lock for bags, characterized in that: The lock includes a lock housing, a bolt rotatably mounted within the lock housing, a lower locking block for abutting against the bolt to unlock, and a lower movable block that slides along the length of the lock housing and engages with the lower locking block. The lock housing is provided with a combination wheel assembly and a push-button assembly that slides along the length of the lock housing. The push-button assembly is movably connected to the lower movable block. The combination wheel assembly includes a wheel axle arranged along the length of the lock housing and capable of telescopic movement, and a wheel axle spring sleeved on the outer periphery of the wheel axle. The end of the wheel axle is located on the sliding trajectory of the push-button assembly. The placement direction of the latch is perpendicular to the sliding direction of the push assembly. A torsion spring is provided between the latch and the lock housing to drive the latch to flip in the locked state. One end of the latch forms a hook for engaging an external latch, and the other end of the latch is suspended. The lower locking block has an upwardly inclined guide slope at the end facing the latch. If the password is incorrect, the axle is in the extended state, and the end of the axle abuts against and restricts the sliding of the push assembly, thereby locking; in the locked state, the upper end of the guide slope abuts against the suspended end of the lock tongue; When the password is correct, the axle is in a retractable state. The pusher component slides in the unlocking direction and pushes the axle to retract. The axle spring is in a compressed state. The pusher component slides and drives the lower movable block to move. The lower movable block moves and drives the lower locking block to move, releasing the lock tongue. In the unlocked state, the lower end of the guide slope abuts against the suspended end of the lock tongue, so that the lock tongue flips in the unlocked state. When locked, the compressed axle spring drives the axle to extend back into its original position, and the extension and return of the axle pushes the pusher assembly back into its original position.

2. The multi-layer combination lock for bags according to claim 1, characterized in that: The push assembly includes a clutch and a push body that can slide along the length of the lock housing. The clutch is mounted on the side of the push body facing the axle and can rotate relative to the push body. When locked, the axle abuts against the clutch to restrict the rotation of the clutch; When unlocking, the pusher body slides and pushes the clutch to rotate, and the rotation of the clutch pushes the wheel axle to retract.

3. A multi-layer combination lock for bags according to claim 2, characterized in that: The clutch has a hinge hole in the middle, and the pusher body has a guide groove located below the hinge hole. A rotating shaft is fixed inside the lock housing. The top end of the rotating shaft passes through the guide groove of the pusher body and is inserted into the hinge hole of the clutch. The clutch can rotate relative to the rotating shaft, and the rotating shaft can slide relative to the guide groove along the length direction of the guide groove.

4. A multi-layer combination lock for bags according to claim 3, characterized in that: The push body is also provided with a front limiting groove and a rear limiting groove located on the front and rear sides of the guide groove, respectively. The bottom surface of the clutch extends downward to insert a front push rod into the front limiting groove and a rear push rod into the rear limiting groove. The front push rod and the rear push rod are staggered and diagonally arranged in the length direction of the lock housing. When locked, the front push rod abuts against the right inner wall of the front limiting groove, and the rear push rod abuts against the left inner wall of the rear limiting groove. When unlocking, the pusher body slides to the left, pushing the front push rod to rotate the clutch in a clockwise direction, and the rear push rod slides along the rear limiting groove; when unlocking, the pusher body slides to the right, pushing the rear push rod to rotate the clutch in a clockwise direction, and the front push rod slides along the front limiting groove.

5. A multi-layer combination lock for bags according to claim 2, characterized in that: The push assembly includes a lock cylinder installed in the push body. The lock cylinder is rotatable relative to the push body. The bottom plate of the lock cylinder extends downward to form a first actuating part. The lower movable block has a locking groove at its end facing the first actuating part. The first actuating part is inserted into the locking groove and can slide along the locking groove. When unlocking, the lock cylinder rotates, and the first actuating part of the lock cylinder drives the lower movable block to slide along the length of the lock case.

6. A multi-layer combination lock for bags according to claim 5, characterized in that: The lock housing is also equipped with a rotatable lock hook, a locking block for abutting against the lock hook to lock, and an upper movable block for driving the upper locking block to slide. The upper movable block can slide along the length of the lock housing and is arranged side by side with the lower movable block. The bottom surface of the lock cylinder extends downward to form a second actuating part that is spaced apart from the first actuating part. The second actuating part is movably connected to the upper movable block. The placement direction of the locking hook is parallel to the sliding direction of the pushing body; When the lock cylinder is unlocked, the lock cylinder rotates, and the second actuating part of the lock cylinder drives the upper movable block to slide along the lock case. The upper movable block slides and drives the upper locking block to slide so that the upper locking block releases the lock hook, thereby unlocking the lock. When the combination wheel assembly is unlocked, the pusher body slides in the unlocking direction. The sliding of the pusher body drives the upper movable block to slide, and the sliding of the upper movable block drives the upper locking block to slide, so that the upper locking block releases the lock hook, thereby unlocking.

7. A multi-layer combination lock for bags according to claim 6, characterized in that: The lock hook includes a hook portion and a retaining portion. The hook portion is used to hook the zipper piece. The upper locking block has an unlocking groove. The upper locking block extends downward to form an unlocking portion. The upper movable block has an unlocking hole for the unlocking portion to be inserted. The unlocking hole has a second wedge-shaped surface. The unlocking portion has a first wedge-shaped surface that is complementary to the second wedge-shaped surface. In the locked state, the holding part abuts against the side of the locking block to restrict the rotation of the hook part; In the unlocked state, the holding part is aligned with the unlocking slot to release the restriction on the rotation of the hook part.

8. A multi-layer combination lock for bags according to claim 5, characterized in that: The lower movable block extends downward from the end away from the first actuating part to form a retaining arm. The lower locking block has a retaining hole for the retaining arm to be inserted into.

9. A multi-layer combination lock for bags according to claim 8, characterized in that: The lock housing includes a first lock housing and a second lock housing fixedly installed on the bottom surface of the first lock housing. The push assembly, the combination wheel assembly, and the lower movable block are all installed inside the first lock housing. The bolt and the lower locking block are all installed inside the second lock housing. The locking arm of the lower movable block extends out of the bottom of the first lock housing, and the locking hole of the lower locking block extends out of the top of the second lock housing.

10. A multi-layer combination lock for bags according to claim 1, characterized in that: It also includes a USB port module, which is fixedly installed inside the lock housing.

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