CN115306230A - Coded lock for multilayer case - Google Patents

Abstract

The invention relates to the technical field of locks, in particular to a coded lock for a multilayer luggage, which comprises a lock shell, a spring bolt, a lower lock block and a lower movable block, wherein the spring bolt is rotatably arranged in the lock shell, the lower lock block is used for abutting against the spring bolt to realize unlocking, the lower movable block can slide along the length direction of the lock shell and is clamped with the lower lock block, the lock shell is provided with a coded wheel assembly and a pushing assembly, the pushing assembly can slide along the length direction of the lock shell, the pushing assembly is movably connected with the lower movable block, the coded wheel assembly comprises a wheel shaft which is arranged along the length direction of the lock shell and can move in a telescopic manner and a wheel shaft spring sleeved on the outer peripheral side of the wheel shaft, and the end part of the wheel shaft is positioned on the sliding track of the pushing assembly; the placing direction of the lock tongue is perpendicular to the sliding direction of the pushing assembly. The utility model provides a trick lock adopts the shaft spring of trick wheel subassembly self to carry out self return as the piece that resets with what slide after pushing away the system, need not to add reset spring in the trick lock is inside to simplify the inner structure of trick lock, simplified the assembly process of trick lock, solved the problem that the structure is complicated in the past.

Description

Coded lock for multilayer case

Technical Field

The invention relates to the technical field of locks, in particular to a coded lock for multilayer cases.

Background

In order to store articles in a classified manner conveniently, the bags on the market are all multilayer bags, and each layer of the bags is closed or opened through a zipper. To these multilayer bags, generally will install the zip fastener trick lock between the adjacent two-layer, the zip fastener trick lock is equipped with a plurality of lockholes that supply the zip fastener piece to insert, and all is equipped with the latch hook that is used for catching on the zip fastener piece in every lockhole.

At present, due to the popularization of the notebook computer, a plurality of people can carry the notebook computer when going out. For the safety and the theft prevention of the portable notebook computer, a case capable of storing the notebook computer and locking the notebook computer for theft prevention appears on the market, namely, a front cover is arranged on one side of a box body, the front cover and the box body form an interlayer, the interlayer is used for storing the notebook computer, the front cover is provided with a lock catch, and a lock tongue connected with the lock catch in a clamping manner is arranged on a zipper coded lock, so that the zipper coded lock can lock a conventional zipper piece and can also realize the theft prevention of the interlayer for storing the notebook computer.

The zipper coded lock is generally provided with a pushing system (button/switch), when the code is correct, a person pushes the pushing system to move towards the unlocking direction, and the pushing system can control the turning of the lock tongue or the lock hook through a transmission structure in the lock, so that the lock catch can get rid of the buckling of the lock tongue or the clamping of the lock hook by the zipper sheet, and the unlocking is realized.

In order to facilitate pushing of zipper coded locks in the market, the zipper coded locks can automatically return after being unlocked, generally, a return spring is arranged in the zipper coded locks, when the pushing mechanism is pushed by a person, the return spring is in a compressed state, and when the pushing mechanism is moved away by the person and thrust is not applied any more, the return spring in the compressed state can drive the pushing mechanism to return by using the elastic force of the return spring, so that the pushing mechanism can automatically return without being pushed by the person. Therefore, the zipper coded lock in the prior art is additionally provided with the reset spring to drive the pushing and returning, the reset spring is generally arranged between the lock shell and the pushing mechanism, and the reset spring needs to be arranged on a straight line in the unlocking direction of the pushing and releasing movement, so that the structure inside the zipper coded lock is complex undoubtedly, and the assembling process is troublesome.

To the case that can deposit the notebook, push away the system and move the latch hook that the unblock was used for withholding the zip fastener piece towards the left side, push away the system and move the unblock towards the right side and be used for withholding the spring bolt of front cover hasp, consequently, reset spring just needs to set up two, has increased the cost of manufacture of zip fastener trick lock undoubtedly like this, still can make the inner structure of zip fastener trick lock more complicated.

Disclosure of Invention

The invention aims to provide a coded lock for a multilayer suitcase, aiming at overcoming the defects in the prior art, and solving the technical problem of complicated structure in the prior art.

The purpose of the invention is realized by the following technical scheme:

the utility model provides a trick lock for multilayer case and bag, including the lock shell, rotationally install the spring bolt in the lock shell, be used for supporting with the spring bolt and realize the lower locking piece of unblock and can slide along lock shell length direction and with the lower movable block of lower locking piece joint, the lock shell is equipped with the trick wheel subassembly and can slide along lock shell length direction's the pushing assembly, pushing assembly and lower movable block swing joint, the trick wheel subassembly includes the shaft that arranges and scalable motion along lock shell length direction and overlaps the shaft spring of establishing at the shaft periphery side, the tip of shaft is located the slip orbit of pushing assembly; the placing direction of the lock tongue is vertical to the sliding direction of the pushing assembly; when the password is wrong, the wheel shaft is in an extending state, and the end part of the wheel shaft is propped against and limits the pushing component to slide, so that locking is realized; when the password is correct, the wheel shaft is in a retractable state, the pushing assembly slides towards the unlocking direction and pushes the wheel shaft to retract, the wheel shaft spring is in a compressed state, the pushing assembly slides and drives the lower movable block to move, and the lower movable block moves and drives the lower locking block to move to release the locking of the lock tongue; when the locking mechanism is locked, the wheel shaft spring in a compressed state drives the wheel shaft to extend and return, and the wheel shaft extends and returns to push the pushing assembly to return.

The pushing assembly comprises a clutch piece and a pushing body capable of sliding along the length direction of the lock shell, the clutch piece is arranged on one side of the pushing body facing the wheel shaft, and the clutch piece can rotate relative to the pushing body; when the lock is locked, the wheel shaft is pressed against the clutch piece to limit the rotation of the clutch piece; when the wheel shaft is unlocked, the pushing mechanism slides and pushes the clutch piece to rotate, and the clutch piece rotates to push the wheel shaft to retract.

The middle part of the clutch piece is provided with a hinge hole, the pushing body is provided with a guide groove 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 pushing body and then is inserted into the hinge hole of the clutch piece, the clutch piece 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.

The pushing body is also provided with a front limiting groove and a rear limiting groove which are respectively positioned at the front side and the rear side of the guide groove, the bottom surface of the clutch piece extends downwards 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 in the length direction of the lock shell and are arranged diagonally; 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 unlocking, the pushing body slides towards the left side, the pushing body pushes the front push rod to enable the clutch piece to rotate clockwise, and the rear push rod slides along the rear limiting groove; when the clutch is unlocked, the pushing body slides towards the right side, the pushing body pushes the rear push rod to enable the clutch piece to rotate clockwise, and the front push rod slides along the front limiting groove.

The pushing assembly comprises a lock cylinder arranged in the pushing body, the lock cylinder can rotate relative to the pushing body, a first stirring part extends downwards from a bottom plate of the lock cylinder, a clamping groove is formed in the end part, facing the first stirring part, of the lower movable block, and the first stirring part is inserted into the clamping groove and can slide along the clamping groove; during unlocking, the lock cylinder rotates, and the first poking part of the lock cylinder drives the lower movable block to slide along the length direction of the lock shell.

The lock shell is internally provided with a rotatable lock hook, an upper locking block and an upper movable block, wherein the upper locking block is used for abutting against the lock hook to realize locking, the upper movable block is used for driving the upper locking block to slide, the upper movable block can slide along the length direction of the lock shell, the upper movable block and the lower movable block are arranged side by side, the bottom surface of the lock core extends downwards to form a second shifting part which is arranged at intervals with the first shifting part, and the second shifting part is movably connected with the upper movable block; the placing direction of the lock hook is parallel to the sliding direction of the pushing body; when the lock cylinder is unlocked, the lock cylinder rotates, the second shifting part of the lock cylinder drives the upper movable block to slide along the lock shell, and the upper movable block slides and drives the upper locking block to slide so that the locking of the lock hook by the upper locking block is released, and unlocking is realized; when the password wheel assembly is unlocked, the pushing body slides towards the unlocking direction, the pushing body slides and drives the upper movable block to slide, and the upper movable block slides and drives the upper locking block to slide, so that the locking of the locking hook by the upper locking block is released, and unlocking is realized.

The lock hook comprises a hook part and a clamping part, and the hook part is used for hooking the zipper sheet; the upper locking block is provided with an unlocking groove; the upper locking block extends downwards to form an unlocking part, the upper movable block is provided with an unlocking hole into which the unlocking part is inserted, a second wedge-shaped surface is arranged in the unlocking hole, and the unlocking part is provided with a first wedge-shaped surface complementary to the second wedge-shaped surface; under the locking state, the clamping part abuts against the side surface of the top locking block to limit the rotation of the hook part; in the unlocking state, the clamping part is aligned to the unlocking groove to release the rotation limitation of the hook part.

The end part of the lower movable block, which is far away from the first shifting part, extends downwards to form a clamping arm, the lower locking block is provided with a clamping hole for the clamping arm to insert into, and the clamping arm is inserted into the clamping hole; the end part of the lower locking block is provided with a guide inclined plane inclined upwards; a torsion spring for driving the lock tongue to turn upwards is arranged between the lock tongue and the lock shell, one end of the lock tongue forms a fastening hook part for fastening an external lock catch, and the other end of the lock tongue is suspended; under the locking state, the upper end of the guide inclined plane is propped against the suspended end of the lock tongue; under the unlocking state, the lower end of the guide inclined plane supports against the suspended end of the lock tongue, so that the lock tongue is turned towards the unlocking state.

Wherein, the lock shell includes first lock shell and fixed mounting and locks the shell at the second of first lock shell bottom surface, pushes away system subassembly, password wheel subassembly and lower movable block and all installs in first lock shell, and the spring bolt is all installed in the second lock shell with lower locking piece, and the card of lower movable block is held the arm and is worn out the bottom of first lock shell, and the card hole of lower locking piece is worn out the top of second lock shell.

The lock shell comprises a lock shell, and is characterized by further comprising a USB socket module which is fixedly arranged in the lock shell.

The coded lock for the multilayer luggage has the following beneficial effects:

(1) The wheel shaft spring of the coded wheel assembly can automatically return the sliding pushing mechanism as the reset piece, and a reset spring does not need to be additionally arranged in the coded lock, so that the internal structure of the coded lock is simplified, the assembly process of the coded lock is simplified, and the problem of complex structure in the past is solved.

(2) The coded lock is compact in overall structure, reasonable in layout, smooth in unlocking and locking processes, fast and convenient to operate, and capable of enhancing the experience of consumers and improving the convenience of the coded lock.

Drawings

The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.

Fig. 1 is a schematic structural view of a combination lock for a multi-layer suitcase according to the present invention.

Fig. 2 is an exploded view of the combination lock for a multi-layer luggage of the present invention.

Fig. 3 is a schematic structural diagram of the combination lock of the present invention after hiding the USB socket module, the first lock case and the second lock case.

Fig. 4 is an assembly view of the upper lock block and the shackle of the present invention.

Fig. 5 is an exploded assembly view of the upper lock block and shackle of the present invention.

Fig. 6 isbase:Sub>A cross-sectional view taken atbase:Sub>A-base:Sub>A in fig. 3.

Figure 7 is an exploded view of the push assembly of the present invention.

Fig. 8 is a schematic structural diagram of the pushing assembly of the present invention.

Fig. 9 is a cross-sectional view at B-B in fig. 8.

Fig. 10 is an assembly view of the lower lock block and locking bolt of the present invention.

Reference numerals: the locking mechanism comprises a first lock case 11, a face case 111, a bottom case 112, a bottom plate 113, a second lock case 12, a top plate 121, a base 122, a lock hole 13, a usb socket module 14, a buckle hole 15, a pushing body 21, a lock cylinder 22, a first toggle part 23, a second toggle part 24, a guide groove 200, a front limit groove 201, a rear limit groove 202, a password wheel assembly 3, an axle 31, an axle spring 32, a clutch member 4, a rotating shaft 40, a front push rod 41, a rear push rod 42, a latch seat 50, a latch hook 5, a hook part 53, a clamping part 54, a hinge part 55, a latch seat 50, a mounting lug 501, an upper lock block 6, an unlocking groove 61, an unlocking part 62, a first wedge-shaped surface 63, an upper movable block 71, a lower movable block 72, a clamping arm 721, a clamping groove 722, an unlocking hole 73, a second wedge-shaped surface 74, a clamping hole 75, a latch tongue 8, a clasp part 81, a lower lock block 9, a clamping hole 91 and a guide inclined surface 92.

Detailed Description

The invention is further described with reference to the following examples.

In the present embodiment, a zipper coded lock capable of locking a zipper piece and a front cover lock catch is taken as an example for explanation, as shown in fig. 1 to 3, the coded lock includes a lock case, the lock case includes a first lock case 11 and a second lock case 12 fixedly mounted on a bottom surface of the first lock case 11, the first lock case 11 and the second lock case 12 may adopt an integrated structure or a split structure, in the present embodiment, the first lock case 11 includes a face case 111, a bottom plate 113 and a bottom case 112, the face case 111 is covered on a top surface of the bottom case 112, and the bottom plate 113 is erected inside the bottom case 112. The second lock case 12 includes a base 122 and a top plate 121 covering the top surface of the base 122, in order to save the assembling steps and strengthen the structural strength of the lock case, the top plate 121 of the second lock case 12 and the bottom case 112 of the first lock case 11 are integrally formed, and the housing formed by the bottom case 112 and the top plate 121 is a hollow structure. Because the first lock shell 11 and the second lock shell 12 have a height difference in the height direction, the lock shells are more suitable for the luggage with an interlayer, and the second lock shell 12 can be matched with a front cover of the luggage, so that the interlayer of the luggage can be locked more conveniently. In addition, the bottom plate 113 is clamped at the bottom of the face shell 111 through a clamping structure, and a clamping hole 91 and a clamping convex clamping manner can be specifically adopted. The bottom shell 112 is detachably connected to the base 122 through the top plate 121, the base 122 is detachably connected to the face shell 111, and specifically, the base 122 is detachably connected to the face shell 111, and the top plate 121 is detachably connected to the base 122 through fastening with screws. In addition, in order to facilitate a user to charge or supply power to the mobile electronic device, the first lock case 11 is further provided with a USB socket module 14, and it should be noted that the USB socket module 14 is provided with a power supply end and a charging end, the charging end can be electrically connected to the mobile power supply in the luggage for the charging wire, and the power supply end can be a USB socket of various specifications for a consumer to plug in a power line so as to charge the mobile electronic device.

The combination lock of the present embodiment is suitable for a luggage with a multi-layer structure, therefore, the combination lock of the present embodiment has two locking holes 13, the two locking holes 13 are disposed at the face shell 111 of the first lock shell 11, each locking hole 13 is internally provided with a locking hook 5 rotatably mounted in the first lock shell 11, and an elastic member for driving the locking hook 5 to turn over toward the locked state is disposed between the locking hook 5 and the first lock shell 11. In order to realize the anti-theft function, the lock shell is internally provided with upper locking blocks 6 which are used for abutting against the lock hooks 5 to realize locking, the number of the upper locking blocks 6 is equal to that of the lock hooks 5, and each locking block is matched with one lock hook 5.

In order to facilitate assembly and protect the upper locking pieces 6, referring to fig. 4 and 5, a locking hook seat 50 for covering the upper locking pieces 6 is further disposed in the first lock case 11, the locking hook seat 50 is pressed and fixed with the face shell 111 of the first lock case 11, both the upper locking pieces 6 are mounted in the same locking hook seat 50, and each upper locking piece 6 can slide in the locking hook seat 50 along a direction perpendicular to the length direction of the first lock case 11, while the top end surface of the locking hook seat 50 extends upwards to form a pair of mounting ears 501, and both side surfaces of the locking hook 5 extend outwards to form a cylindrical hinge portion 55, and during assembly, the hinge portion 55 is placed at the top end of the mounting ears 501, so that the locking hook seat 50 supports the locking hook 5, and the locking hook 5 can rotate relative to the first lock case 11.

Referring to fig. 4 and 5, the locking hook 5 includes a hook portion 53 and a catching portion 54, and the hook portion 53 is used for catching the zipper sheet. The upper locking piece 6 comprises a straight strip-shaped locking piece body, and the locking piece body is provided with an unlocking groove 61. In the locked state, the lock body of the upper lock 6 abuts against the catch 54 of the lock hook 5, and at this time, the catch 54 is staggered from the unlocking groove 61, so that the lock hook 5 is restricted from rotating and unlocking. When unlocking, the upper lock block 6 moves along the width direction of the lock hook seat 50, and after the unlocking groove 61 is aligned with the clamping part 54, the clamping part 54 can be placed in the unlocking groove 61, so that the lock hook 5 releases the rotation limitation and can rotate for unlocking. And the elastic piece can drive the latch hook 5 to return automatically, and similarly, in order to enable the upper lock block 6 to return automatically, the elastic piece is also arranged between the upper lock block 6 and the latch hook seat 50.

Referring to fig. 6, in order to enable the upper lock block 6 to perform unlocking movement, an upper movable block 71 for driving the upper lock block 6 to move is further provided in the lock case. The bottom surface of the upper lock block 6 extends downwards to form an unlocking part 62, an unlocking hole 73 for inserting the unlocking part 62 is formed in one end, close to the upper lock block 6, of the upper movable block 71, a second wedge-shaped surface 74 is arranged in the unlocking hole 73, and a first wedge-shaped surface 63 complementary to the second wedge-shaped surface 74 is arranged on the unlocking part 62. Preferably, the unlocking portion 62 of the upper lock 6 has a trapezoidal cross-sectional shape. In operation, when the upper movable block 71 moves towards the right, the second wedge-shaped surface 74 of the unlocking hole 73 of the upper movable block 71 abuts against the first wedge-shaped surface 63 of the unlocking part 62 of the upper lock block 6, so that the transverse movement of the upper movable block 71 is converted into the longitudinal movement of the upper lock block 6, and the rotation limitation of the upper lock block 6 on the lock hook 5 is removed, and the locking is realized.

The coded lock of this embodiment needs to unlock the lock hook 5, and then must move the upper movable block 71, and after the upper movable block 71 moves and can drive the upper lock block 6 and the lock hook 5 to misplace, the lock hook 5 can just unlock. Thus, the combination lock is provided with a push assembly for pushing the upper movable block 71 to move along the length of the housing.

Referring to fig. 7, the pushing assembly includes a pushing body 21 and a key cylinder 22, and the key cylinder 22 is rotatably installed in the pushing body 21, it should be noted that the key cylinder 22 is a conventional pin tumbler lock, that is, after a key is inserted, the key cylinder 22 can rotate relative to the pushing body 21, and the key cylinder 22 cannot rotate without the key being inserted. The length direction that pushes away the system subassembly and can follow first lock shell 11 slides, push away system subassembly and last movable block 71 joint, specifically, lock core 22's bottom extends down two intervals and arranges first portion of stirring 23 and the second portion of stirring 24, go up the movable block 71 and be close to the tip that the second portion of stirring 24 and offer the joint hole that supplies second portion of stirring 24 male, the joint hole is rectangular hole, the second portion of stirring 24 inserts and can slide along the length direction in joint hole behind the joint hole, thereby realize pushing away the swing joint between system subassembly and the last movable block 71. Therefore, under the condition that no other mechanism blocks the movement of the pushing body 21, by pushing the pushing body 21 towards the left, the pushing body 21 can drive the lock cylinder 22 to slide leftwards along the length direction of the first lock case 11, and since the second shifting part 24 of the lock cylinder 22 clamps the upper movable block 71, the pushing body 21 is pushed to slide so as to drive the upper movable block 71 to move, and the unlocking of the lock hook 5 is realized.

In addition, since the lock cylinder 22 is clamped on the upper movable block 71, and the upper movable block 71 is limited in the first lock housing 11 to be capable of sliding only in the length direction of the first lock housing 11, when a key is used for unlocking, 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, and thus the lock hook 5 is unlocked through the upper movable block 71. During locking, the locking can be completed only by rotating the lock cylinder 22 in the opposite direction to the unlocking direction, and then the lock cylinder 22 rotates and drives the upper movable block 71 to return.

In this embodiment, please see fig. 1 to 2, two spaced fastening holes 15 are formed in a side surface of the second lock case 12, a lock tongue 8 capable of rotating relative to the second lock case 12 is disposed in each fastening hole 15, it should be noted that the lock tongue 8 can be rotatably mounted in the first lock case 11 by using the lock hook 5, and similarly, in order to facilitate the automatic return of the lock tongue 8, a torsion spring for driving the lock tongue 8 to turn over in the upward locking state is disposed between the lock tongue 8 and the second lock case 12.

Referring to fig. 10, a hook 81 for fastening an external lock catch is formed at one end of the latch tongue 8 facing the fastening hole 15, and the other end of the latch tongue 8 is suspended, that is, a certain distance exists between the end of the latch tongue 8 and the inner bottom surface of the second lock case 12, which is similar to a lever structure. Referring to fig. 8 to 9, a lower lock block 9 is further disposed in the second lock case 12, the lower lock block 9 can slide along the length direction of the second lock case 12, and preferably, the lower lock block 9 is T-shaped. The end of the lower lock piece 9 facing the bolt 8 is formed with a guide slope 92 inclined obliquely upward. Under the locked state, the upper end of guide inclined plane 92 supports the unsettled one end of spring bolt 8, and the unblock in-process, the guide inclined plane 92 of lower latch segment 9 and the unsettled one end interference motion of spring bolt 8 to order about spring bolt 8 and overturn gradually towards the unblock state, under the unblock state, the lower extreme of guide inclined plane 92 supports the unsettled one end of spring bolt 8.

It should be noted that the pushing assembly, the latch hook 5, the upper lock block 6, the latch hook seat 50, and the upper movable block 71 are all installed in the first lock case 11, and the latch tongue 8 and the lower lock block 9 are all installed in the second lock case 12, in order to enable the pushing assembly to drive the lower lock block 9 to move, the first lock case 11 is further provided with a lower movable block 72, the lower movable block 72 can slide along the length direction of the first lock case 11, one end of the lower movable block 72, which is far away from the pushing body 21, extends out of a clamping arm 721, the clamping arm 721 of the lower movable block 72 penetrates out of the bottom of the first lock case 11, the middle of the lower lock block 9 extends out of a clamping hole 91, the clamping arm 721 extends out of the clamping hole 91 and is inserted into the clamping hole 91, so that the lower movable block 72 and the lower lock block 9 are connected into a whole, and when the lower movable block 72 horizontally slides, the lower lock block 9 is horizontally slid together with the lower lock block 9.

Combine fig. 7 and fig. 10, the bottom of lock core 22 extends downwards and sets up with second stirring portion 24 interval first stirring portion 23, and lower movable block 72 is close to the tip of first stirring portion 23 and offers and supplies first stirring portion 23 male joint groove, and first stirring portion 23 inserts and can slide along the length direction in joint groove behind the joint groove to realize pushing away the swing joint between system subassembly and the lower movable block 72. Therefore, under the condition that no other mechanism blocks the pushing body 21 from moving, the pushing body 21 is pushed towards the right, the pushing body 21 can drive the lock cylinder 22 to slide rightwards along the length direction of the first lock case 11, and the first poking part 23 of the lock cylinder 22 clamps the lower movable block 72 and pushes the pushing body 21 to slide so as to drive the lower movable block 72 to move, so that the lock tongue 8 is unlocked.

In addition, because the lock core 22 is clamped on the lower movable block 72, and the lower movable block 72 is limited in the second lock case 12 and can only slide along the length direction of the second lock case 12, when a key is used for unlocking, the key is inserted and the lock core 22 is rotated, the rotation of the lock core 22 is converted into the horizontal sliding of the lower movable block 72, and therefore the lock tongue 8 is unlocked through the lower movable block 72. During locking, the locking can be completed only by rotating the lock cylinder 22 in the opposite direction to the unlocking direction, and rotating the lock cylinder 22 to drive the lower movable block 72 to return.

As a modification, please see fig. 3, the combination lock further comprises a combination wheel assembly 3. The cipher wheel assembly 3 comprises a wheel shaft 31 which is arranged along the length direction of the lock shell and can do reciprocating telescopic motion, and a wheel shaft spring 32 which is sleeved on the outer peripheral side of the wheel shaft 31, and it should be noted that the cipher wheel assembly 3 is of a conventional cipher wheel structure, and the wheel shaft spring 32 is an elastic reset piece of the cipher wheel assembly 3, so that the cipher is correct, the wheel shaft 31 can do reciprocating telescopic motion, the cipher is wrong, and the wheel shaft 31 cannot do telescopic motion. The wheel shaft 31 is arranged on the side of the pushing body 21 and is positioned on the motion track of the pushing body 21, the working process is that the password is wrong, the wheel shaft 31 is in an extending state, and the end part of the wheel shaft 31 abuts against and limits the pushing sliding to realize locking; when the password is correct, the wheel shaft 31 is in a retractable state, the pushing assembly slides towards the unlocking direction and pushes the wheel shaft 31 to retract, the wheel shaft spring 32 is in a compressed state, the pushing assembly slides and drives the lower movable block 72 or the upper movable block 71 to move, and the upper movable block 71 or the lower movable block 72 moves to drive the corresponding locking block or the corresponding lock tongue 8 to move; during locking, the wheel shaft spring 32 in a compressed state drives the wheel shaft 31 to extend and return, and the wheel shaft 31 extends and returns to push the pushing body 21 to return.

In order to make the operation of the combination lock more humanized, the movement of the suppressing body 21 needs to be designed to: move the independent spring bolt 8 of unblock in the second lock shell 12 and the independent latch hook 5 of unblock in the first lock shell 11 of leftward movement towards the right side, traditional design is all to set up a password wheel subassembly 3 on the left side and the right side of pushing away system body 21, be used for respectively limiting to push away system body 21 and move towards the left and towards the right under last lock status, but adopt two password wheel subassemblies 3, can lead to the cost of manufacture to increase undoubtedly, the holistic volume of trick lock also can increase, to this, this embodiment just can restrict to push away system body 21 and can't move towards the left and towards the right problem under last lock status in order to solve and adopt single password wheel subassembly 3, clutch 4 has been add. Specifically, referring to fig. 8 and 9, the pushing assembly is further provided with a clutch member 4, the clutch member 4 is mounted on a side of the pushing body 21 facing the wheel shaft 31, and the clutch member 4 can rotate relative to the pushing body 21. Preferably, a hinge hole is formed in the middle of the clutch member 4, a guide slot 200 is formed below the hinge hole in the suppressing body 21, a rotating shaft 40 is fixedly connected in the first lock case 11 (the top end surface of the bottom plate 113), the top end of the rotating shaft 40 penetrates through the guide slot 200 of the suppressing body 21 and then is inserted into the hinge hole of the clutch member 4, the clutch member 4 can rotate relative to the rotating shaft 40, and the rotating shaft 40 can slide relative to the guide slot 200 along the length direction of the guide slot 200.

Preferably, the pushing body 21 further defines a front limit groove 201 and a rear limit groove 202 respectively located at the front side and the rear side of the guide groove 200, the bottom surface of the clutch 4 extends downward to form a front push rod 41 inserted into the front limit groove 201 and a rear push rod 42 inserted into the rear limit 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 case.

During locking, the front push rod 41 abuts against the right inner side wall of the front limiting groove 201, the wheel shaft 31 cannot move in a telescopic mode due to the fact that the wheel shaft 31 is in a locking state, the pushing body 21 cannot move towards the left side under the obstruction of the front limiting groove 201 and the front push rod 41, the rear push rod 42 abuts against the left inner side wall of the rear limiting groove 202, the pushing body 21 cannot move towards the right side under the obstruction of the rear limiting groove 202 and the rear push rod 42, locking is achieved, and the pushing body 21 can be limited to move towards the left side and the right side by the aid of the single password wheel assembly 3 through the clutch piece 4. During unlocking, the wheel shaft 31 can stretch and move, the pushing body 21 slides towards the left side, the pushing body 21 pushes the front push rod 41 to enable the clutch piece 4 to rotate clockwise, and the rear push rod 42 slides along the rear limiting groove 202; when unlocking, the pushing body 21 slides towards the right side, the pushing body 21 pushes the rear push rod 42 to rotate the clutch member 4 clockwise, and the front push rod 41 slides along the front limit groove 201. It should be noted that, no matter the pushing body 21 slides towards the left or right, as long as the wheel shaft 31 is in the unlocking state, the clutch member 4 rotates and presses against the end of the wheel shaft 31, so as to assist the pushing body 21 to unlock, and thus the force required for unlocking is smaller, and the unlocking process is smoother and more stable.

It should be noted that the clutch element 4 and the pushing body 21 are limited by the limiting groove and the push rod, so that the pushing body 21 can be always located in the middle position of the operation cavity of the face shell 11 in the locked state (the operation cavity is a through hole opened in the face shell 11 and is mainly used for installing the pushing body 21 and allowing the pushing body 21 to slide left or right), instead of the conventional method of limiting the pushing body 21 by using other elastic members such as a spring, in the conventional scheme, the pushing body 21 cannot be centered due to the elastic force of the spring itself, the pushing body 21 can always be limited by the elastic force applied by the spring (elastic member) after being returned, so that the pushing body 21 always deviates left or right in the operation cavity of the face shell 11, and in this embodiment, the clutch element 4 can not only realize that the pushing body 21 cannot move left or right by using a single password wheel assembly 3, but also can limit the pushing body 21, so that the pushing body 21 is always kept in the position before being unlocked, and the pushing body 21 is always kept in the centered position after being returned.

In another embodiment, if the combination lock does not need to be provided with the locking hook 5, that is, the combination lock removes the function of locking the external zipper strip, then the combination lock does not need to be provided with the locking hook 5, the upper lock block 6 and the upper movable block 71, and only the lock shell, the pushing assembly, the combination wheel assembly 3, the lower movable block 72, the lower lock block 9, the clutch member 4 and the locking tongue 8 are remained, so that the combination lock only used for locking the external front cover lock catch can be formed, and when only the locking hook 5 or the locking tongue 8 needs to be arranged, that is, the pushing body 21 only needs to move in one direction (towards the right or towards the left) for unlocking, the clutch member 4 also does not need to be arranged.

According to the password lock for the multilayer luggage, the wheel shaft spring 32 of the password wheel assembly 3 serves as a reset piece and can automatically reset the pushed system after sliding, the wheel shaft spring 32 is sleeved on the wheel shaft body 31, so that the wheel shaft spring 32 only extends and retracts along the axial direction, the middle part of the traditional reset spring is not provided with other auxiliary parts to support and is easy to twist, and the middle part of the wheel shaft spring 31 cannot twist or bend, so that the reset lock is more reliable in resetting compared with the traditional lock adopting the reset spring to drive the pushed system body 21 to reset, is longer in service life, can not normally drive the pushed system to reset, and does not need to additionally arrange the reset spring in the password lock, so that the internal structure of the password lock is simplified, the assembling process of the password lock is simplified, and the problem that the structure is complex in the prior art is solved. The coded lock is compact in overall structure, reasonable in layout, smooth in unlocking and locking processes, fast and convenient to operate, and capable of enhancing the experience of consumers and improving the convenience of the coded lock.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims (10)

1. The utility model provides a trick lock for multilayer case and bag which characterized in that: the password lock comprises a lock shell, a lock tongue, a lower lock block and a lower movable block, wherein the lock tongue is rotatably arranged in the lock shell, the lower lock block is used for abutting against the lock tongue to realize unlocking, the lower movable block can slide along the length direction of the lock shell and is clamped with the lower lock block, the lock shell is provided with a password wheel assembly and a pushing assembly capable of sliding along the length direction of the lock shell, the pushing assembly is movably connected with the lower movable block, the password wheel assembly comprises a wheel shaft which is arranged along the length direction of the lock shell and can move in a telescopic mode and a wheel shaft spring sleeved on the outer peripheral side of the wheel shaft, and the end part of the wheel shaft is positioned on the sliding track of the pushing assembly;

the placing direction of the lock tongue is perpendicular to the sliding direction of the pushing assembly;

when the password is wrong, the wheel shaft is in an extending state, and the end part of the wheel shaft abuts against and limits the pushing assembly to slide, so that locking is realized;

when the password is correct, the wheel shaft is in a retractable state, the pushing assembly slides towards the unlocking direction and pushes the wheel shaft to retract, the wheel shaft spring is in a compressed state, the pushing assembly slides and drives the lower movable block to move, and the lower movable block moves and drives the lower lock block to move to release the locking of the lock tongue;

when the push-type lock is locked, the wheel shaft spring in a compressed state drives the wheel shaft to extend and return, and the wheel shaft extends and returns to push the push assembly to return.

2. The combination lock for the multi-layer luggage as claimed in claim 1, wherein: the pushing assembly comprises a clutch piece and a pushing body which can slide along the length direction of the lock shell, the clutch piece is arranged on one side of the pushing body facing the wheel shaft, and the clutch piece can rotate relative to the pushing body;

when the lock is locked, the wheel shaft abuts against the clutch piece to limit the rotation of the clutch piece;

when the wheel shaft is unlocked, the pushing mechanism slides and pushes the clutch piece to rotate, and the clutch piece rotates to push the wheel shaft to retract.

3. The combination lock for the multi-layer luggage as claimed in claim 2, wherein: the clutch piece is characterized in that a hinge hole is formed in the middle of the clutch piece, a guide groove located below the hinge hole is formed in the pushing body, a rotating shaft is fixedly connected into the lock shell, the top end of the rotating shaft penetrates through the guide groove of the pushing body and then is inserted into the hinge hole of the clutch piece, the clutch piece 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. The coded lock for the multilayer luggage as claimed in claim 3, wherein: the pushing body is further provided with a front limiting groove and a rear limiting groove which are respectively positioned on the front side and the rear side of the guide groove, a front push rod inserted into the front limiting groove and a rear push rod inserted into the rear limiting groove extend downwards from the bottom surface of the clutch piece, and the front push rod and the rear push rod are staggered in the length direction of the lock shell and are arranged diagonally;

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 clutch is unlocked, the pushing body slides towards the left side, the pushing body pushes the front push rod to enable the clutch to rotate clockwise, and the rear push rod slides along the rear limiting groove; when the clutch is unlocked, the pushing body slides towards the right side, the pushing body pushes the rear push rod to enable the clutch to rotate towards the clockwise direction, and the front push rod slides along the front limiting groove.

5. The combination lock for the multi-layer luggage as claimed in claim 2, wherein: the pushing assembly comprises a lock cylinder arranged in the pushing body, the lock cylinder can rotate relative to the pushing body, a first shifting part extends downwards from a bottom plate of the lock cylinder, a clamping groove is formed in the end part, facing the first shifting part, of the lower movable block, and the first shifting part is inserted into the clamping groove and can slide along the clamping groove;

when the lock is unlocked, the lock cylinder rotates, and the first shifting part of the lock cylinder drives the lower movable block to slide along the length direction of the lock shell.

6. The combination lock for the multi-layer luggage as claimed in claim 5, wherein: the lock shell is internally provided with a rotatable lock hook, an upper locking block which is used for abutting against the lock hook to realize locking and an upper movable block which is used for driving the upper locking block to slide, the upper movable block can slide along the length direction of the lock shell, the upper movable block and the lower movable block are arranged side by side, the bottom surface of the lock core extends downwards to form a second shifting part which is arranged at intervals with the first shifting part, and the second shifting part is movably connected with the upper movable block;

the placing direction of the lock hook is parallel to the sliding direction of the pushing body;

when the lock cylinder is unlocked, the lock cylinder rotates, the second shifting part of the lock cylinder drives the upper movable block to slide along the lock shell, and the upper movable block slides and drives the upper lock block to slide so that the lock hook is unlocked by the upper lock block, so that unlocking is realized;

when the password wheel assembly is unlocked, the pushing body slides towards the unlocking direction, the pushing body slides and drives the upper movable block to slide, the upper movable block slides and drives the upper locking block to slide, so that the locking of the locking hook is released by the upper locking block, and unlocking is realized.

7. The combination lock of claim 6, wherein: the lock hook comprises a hook part and a clamping part, and the hook part is used for hooking the zipper sheet; the upper locking block is provided with an unlocking groove; the upper locking block extends downwards to form an unlocking part, the upper movable block is provided with an unlocking hole into which the unlocking part is inserted, a second wedge-shaped surface is arranged in the unlocking hole, and the unlocking part is provided with a first wedge-shaped surface complementary to the second wedge-shaped surface;

under the locking state, the clamping part is propped against the side surface of the upper locking block so as to limit the rotation of the hook part;

in the unlocking state, the clamping part is aligned to the unlocking groove so as to relieve the limitation of the rotation of the hook part.

8. The combination lock for the multi-layer luggage as claimed in claim 5, wherein: the end part, far away from the first shifting part, of the lower movable block extends downwards to form a clamping arm, the lower locking block is provided with a clamping hole for the clamping arm to insert into, and the clamping arm is inserted into the clamping hole;

the end part of the lower locking block is provided with a guide inclined plane which inclines upwards;

a torsion spring for driving the spring bolt to turn upwards in a locking state is arranged between the spring bolt and the lock shell, a clasp part for buckling an external lock catch is formed at one end of the spring bolt, and the other end of the spring bolt is suspended in the air;

under the locking state, the upper end of the guide inclined plane props against the suspended end of the lock tongue;

and in the unlocking state, the lower end of the guide inclined plane is propped against the suspended end of the lock tongue, so that the lock tongue is turned towards the unlocking state.

9. The combination lock of claim 8, wherein: 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 pushing assembly, the password wheel assembly and the lower movable block are installed in the first lock shell, the spring bolt and the lower movable block are installed in the second lock shell, the clamping arm of the lower movable block penetrates out of the bottom of the first lock shell, and the clamping hole of the lower movable block penetrates out of the top of the second lock shell.

10. The combination lock for the multi-layer luggage as claimed in claim 1, wherein: still include USB socket module, USB socket module fixed mounting in the lock shell.

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