CN219387538U - Light and thin coded lock - Google Patents

Abstract

The utility model relates to the technical field of locks, in particular to a light and thin combination lock, comprising a lock case and a combination wheel assembly installed inside the lock case. The upper end surface of the lock case is provided with at least two first through holes, and the lower end surface of the lock case is provided with at least two second through holes, and each first through hole is correspondingly aligned with a second through hole in the vertical direction; portion is exposed outside the second through hole. By exposing the upper and lower parts of the combination wheel on the outside of the lock case, the inner height of the lock case is equal to the height of the middle volume of the combination wheel, which greatly reduces the space occupied by the lock case in the height direction and solves the problem of heavy weight in the past.

Description

A light and thin combination lock

technical field

The utility model relates to the technical field of locks, in particular to a light and thin combination lock.

Background technique

See the patent literature with the application number CN2020231042459, which discloses a special-shaped box bag buckle lock, including a flip lock body and a buckle seat. The flip lock body includes a lock case, a flip seat, a bottom plate, a switch stop shrapnel, a first spring, a button button, a second spring, a combination wheel positioning seat, a combination wheel assembly and a lock cylinder. The upper part of the cipher wheel assembly is exposed on the upper end surface of the lock body, while the lower end surface of the lock body is provided with three holes, and a positioning shrapnel is formed in each hole. This type of buckle has a large volume. Since the middle and lower parts of the combination wheel assembly are accommodated inside the lock body, if one-third of the volume of the combination wheel assembly is exposed on the upper surface of the lock body, then the inner thickness (length in the vertical direction) of the lock body must be greater than or equal to two-thirds of the height of the combination wheel assembly, and there is a problem of excessive volume.

See the patent document with application number CN2017200942346, which discloses an easy-to-operate thin clasp lock, which relates to the technical field of locks. Similarly, the upper part of the code assembly of the lockset is exposed on the upper end surface of the lock body, and the middle and lower parts of the code wheel assembly are accommodated inside the lock body. Therefore, if one-third of the volume of the code wheel assembly is exposed on the upper end surface of the lock body, then the internal thickness (length in the vertical direction) of the lock body must be greater than or equal to two-thirds of the height of the code wheel assembly, and there is a problem of excessive volume.

In addition, when the existing clasp lock is unlocked with a key, the key is inserted to turn the lock cylinder, and the lock cylinder releases the movement restriction on the buckle to be unlocked. After the key is turned, a pressing action (pressing the lock cylinder or pressing the push button/pushing/switch) can be performed to unlock the lock. There is a problem of troublesome unlocking, and the lock cannot be performed in the state of pulling out the key, which is inconvenient to use.

Utility model content

The purpose of the utility model is to provide a light and thin combination lock for the deficiencies in the prior art. The lock can solve the technical problems of being thicker in the height direction and heavier in quality in the past.

The purpose of this utility model is achieved through the following technical solutions: the application provides a light and thin combination lock, including a lock housing and a combination wheel assembly installed inside the lock housing. The upper end surface of the lock housing is provided with at least two first through holes, and the lower end surface of the lock housing is provided with at least two second through holes. Each first through hole is correspondingly aligned with a second through hole in the vertical direction; the combination wheel assembly includes at least two combination wheels. The lower part of the wheel is exposed outside the second through hole, and the part of the combination wheel exposed outside the first through hole and/or the second through hole has a height less than half of the height of the combination wheel.

Wherein, it also includes a base and a bottom buckle, one end of the lock case is hinged to the base through a hinge, and the other end of the lock case is locked with the bottom buckle.

Wherein, the side of the bottom buckle facing the lock shell is provided with a groove for inserting the code wheel.

Wherein, a shrapnel is fixedly installed in the lock housing, and the free end of the shrapnel abuts against the outer peripheral side of the password wheel.

Wherein, the lock housing is provided with a lock cylinder arranged along the length direction of the lock housing, a movable part and a lock hook connected with the bottom buckle. The lock hook is rotatably installed in the lock housing, and an elastic member is provided between the lock housing and the lock hook to drive the lock hook to rotate toward the locking direction. The movable part can slide along the length direction of the lock housing. The push part of the push piece abuts against the unlocking part of the lock hook, so that the lock hook rotates toward the unlocking direction.

Wherein, the unlocking part is arranged in a fan shape, the end surface of the unlocking part facing the pushing part is an arc surface, the pushing part is arranged in a triangular shape, and the end surface of the pushing part facing the unlocking part is an obliquely upward slope.

Wherein, the elastic member is a torsion spring or a spring.

Wherein, a hook is extended from the bottom buckle towards the side of the lock hook, and an end surface of the lock hook facing towards the hook is provided with a slot, and in the locked state, the hook is inserted into the slot.

Wherein, the lock cylinder extends downwards to form a toggle part, and the movable part extends towards the bottom of the lock cylinder to form a connection part, and the connection part is provided with an inclined hole, the toggle part is inserted into the inclined hole and the toggle part can slide along the length direction of the inclined hole.

Wherein, the lock housing is also provided with a pushing system that can slide along the length direction of the lock housing, and the password wheel assembly also includes a wheel shaft that is arranged along the length direction of the lock housing and can move telescopically. The end of the wheel shaft protrudes toward the pushing system; Turn to unlock direction.

The frivolous combination lock of the utility model has the following beneficial effects:

(1) By exposing the code wheel of the code wheel assembly on the upper end surface and the lower end surface of the lock housing, the thickness (inner height) of the lock housing is reduced, that is, the upper and lower parts of the code wheel are exposed outside the lock housing, and the inner height of the lock housing is equal to the height of the middle volume of the code wheel, which greatly reduces the space occupied by the lock housing in the height direction, thereby achieving the effect of thinner thickness, reducing the preparation materials of the lock housing, thereby reducing the weight of the lock housing, thereby achieving a lighter effect.

(2) The overall structure of the buckle lock is simple and compact, easy to use and operate, and has good anti-theft performance.

Description of drawings

Utilize accompanying drawing to further illustrate the utility model, but the embodiment in the accompanying drawing does not constitute any restriction to the utility model, for those of ordinary skill in the art, under the premise of not paying creative work, can also obtain other accompanying drawing according to following accompanying drawing.

Fig. 1 is a schematic structural diagram of a combination lock in this embodiment.

Fig. 2 is a schematic structural diagram of the password clasp lock in an unlocked state in this embodiment.

Fig. 3 is an exploded view of the combination lock in this embodiment.

Fig. 4 is a schematic diagram of the assembly of the bottom buckle and the lock hook in this embodiment.

Fig. 5 is a structural schematic diagram of the hidden face shell and combination wheel assembly in this embodiment after buckling and locking.

Fig. 6 is a schematic diagram of the assembly of the lock cylinder and the movable part in this embodiment.

FIG. 7 is a schematic structural diagram of the cipher wheel assembly in this embodiment.

Reference signs: face shell 11, bottom cover 12, password wheel 21, wheel shaft 22, shrapnel 23, lock cylinder 3, toggle part 31, first rotating shaft 41, second rotating shaft 42, elastic member 43, pushing 5, bump 51, movable part 6, pushing part 61, connecting part 62, inclined hole 63, base 7, unlocking spring 70, bottom buckle 8, hook 81, groove 82, locking hook 9, card groove 91, unlocking part 92, guide post 93.

Detailed ways

The utility model is further described in conjunction with the following examples.

As shown in Fig. 1 to Fig. 3, the embodiment of a light and thin combination lock of the present invention, the combination lock includes a lock housing and a combination wheel assembly installed inside the lock housing. Specifically, the lock case includes a face case 11 (the upper end surface of the lock case) and a bottom cover 12 (the lower end face of the lock case), and the face case 11 and the bottom cover 12 are detachably connected by locking nails. It should be noted that the cipher wheel assembly includes a wheel shaft 22, a cipher wheel (not shown) sleeved on the outer peripheral side of the wheel shaft 22, and a cipher wheel 21. The cipher wheel and the cipher wheel 21 are snap-fitted. The outer peripheral side of the cipher wheel 21 is provided with a plurality of grooves arranged at intervals along the circumferential direction of the cipher wheel 21. The outer peripheral side of the wheel shaft 22 is covered with a return spring that drives the wheel shaft 22 to pop out. It should be noted that the structure and working principle of the cipher wheel assembly in this embodiment are the same as those of conventional cipher wheel assemblies. When the password is wrong, the axle 22 cannot move telescopically. When the password is correct, the axle 22 can move telescopically. It is easy for those skilled in the art to know how the password wheel assembly of this embodiment works.

As an improvement, the face shell 11 is provided with three first through holes, and the bottom cover 12 is provided with three second through holes. In the assembled state, each first through hole corresponds to a second through hole in vertical alignment. The cipher wheel assembly includes three cipher wheels 21, each cipher wheel 21 is correspondingly inserted between the first through hole and the second through hole, so that the top of the cipher wheel 21 is exposed outside the first through hole and the bottom of the cipher wheel 21 is exposed outside the second through hole, and the part of the cipher wheel 21 exposed outside the first through hole and/or the second through hole has a height less than half of the height of the cipher wheel 21, ensuring that the cipher wheel 21 is stably installed in the lock housing. Such a structure can greatly reduce the required thickness of the lock case, so that the distance between the top end surface of the face case 11 and the bottom end surface of the bottom cover 12 can be smaller than the outer diameter of the combination wheel 21, reducing the overall thickness of the lock case and making the whole lock case thinner and more beautiful. It should be noted that the lock case structure of this embodiment can be applied to other luggage locks besides the clasp lock of this embodiment, such as a combination zipper lock or a padlock for locking a zipper piece.

In addition, a shrapnel 23 is fixedly installed in the lock housing, and the free end of the shrapnel 23 abuts against the outer peripheral side of the combination wheel 21. Specifically, the shrapnel 23 is inserted toward the groove of the combination wheel 21, so that when the combination wheel 21 is turned, there is a damping operation feel, and the normal operation of the buckle will not be affected if the shrapnel 23 is not provided.

In this embodiment, the combination clasp lock also includes a base 7 and a bottom clasp 8, one end of the lock case is hinged to the base 7 through a hinge, the hinge is a first rotating shaft 41, and the other end of the lock shell is locked with the bottom clasp 8, and its working principle is the same as that of a traditional clasp lock. 4, the bottom buckle 8 is provided with a groove 82 for the combination wheel 21 to be inserted on the side facing the lock case, so that the part of the combination wheel 21 exposed on the lower end surface of the lock case can be avoided to avoid the combination wheel 21 and the bottom buckle 8 interference.

The clasp locks in the present technology are generally provided with a button switch and a lock cylinder. When the lock cylinder is in the locked state, the lock cylinder directly or indirectly restricts the movement of the button switch; The unlocking method is comparatively complicated like this, and after turning the key, the lockset is directly unlocked, and it is necessary to press the switch button to open the lock body every time.

In order to solve the above problems, the clasp lock of this embodiment improves the unlocking part 92 of the lock cylinder 3 . Specifically, in conjunction with Fig. 5 , the lock housing is provided with a lock cylinder 3 arranged along the length direction of the lock housing, a movable part 6 and a lock hook 9 snap-connected with the bottom buckle 8, the lock hook 9 is rotatably installed in the lock housing through the second rotating shaft 42, and an elastic member 43 is provided between the lock housing and the lock hook 9 to drive the lock hook 9 to rotate in the locking direction. In this embodiment, the elastic member 43 is a torsion spring. Between the locking hook 9 and the lock housing, the elastic force of the spring is used to drive the locking hook 9 to rotate clockwise (locking direction). The movable part 6 can only slide along the length direction of the lock case, and the movable part 6 is limited by the internal rib structure of the lock case, so that the movable part 6 can only slide along the length direction of the lock case.

In this embodiment, the lock core 3 is movably connected to the movable part 6. Referring to FIG.

As an improvement, the locking hook 9 extends out the unlocking portion 92 toward the movable part 6. As a preferred solution, the unlocking portion 92 is arranged in a fan shape, and the end surface of the unlocking portion 92 facing the pushing portion 61 is a circular arc surface, and the movable part 6 extends toward the unlocking portion 92. The part 61 pushes the unlocking part 92 .

When using a key to unlock, insert the key, turn the lock core 3, the lock core 3 pushes the movable part 6 to slide towards the lock hook 9, the inclined surface of the push part 61 of the movable part 6 abuts against the arc surface of the unlocking part 92 of the lock hook 9, so that the lock hook 9 rotates counterclockwise (unlocking direction), and at this time the elastic member 43 is in a compressed state. 9 is separated from bottom buckle 8 to realize unlocking. After the lock shell and the bottom buckle 8 are separated, the key can be turned, and the key can be pulled out from the lock core 3. During the process of turning the lock core 3, the toggle part 31 of the lock core 3 will drive the movable part 6 to return, and the push part 61 of the movable part 6 will be separated from the unlocking part 92 of the lock hook 9. When the lock needs to be locked, the buckle of this embodiment does not need to insert the key again, and only needs to manually buckle the lock shell toward the bottom buckle 8. Since the lock hook 9 does not limit the degree of freedom of rotation around the second rotating shaft 42, therefore, in the process of locking the lock shell, when the lock hook 9 touches the bottom buckle 8, the external force overcomes the elastic force provided by the elastic member 43, and the lock hook 9 and the bottom buckle 8 are fastened, thereby realizing locking. After a reciprocating rotation, after the lock hook 9 is fully engaged with the bottom buckle 8, even if the lock hook 9 is in a rotatable state, it still cannot be unlocked, because the radial thrust cannot be applied to the lock hook 9 . When the clasp lock of this embodiment is unlocked with a key, it is only necessary to rotate the lock cylinder 3 without pressing, so that the lock case can be separated from the bottom buckle 8 to realize unlocking.

4, the bottom buckle 8 extends a hook 81 toward the side of the hook 9, and the end surface of the hook 9 facing the hook 81 is provided with a groove 91. In the locked state, the hook 81 is inserted into the groove 91. The buckle structure is the same as that of a conventional buckle.

7, in order to further improve the convenience of buckling, the lock housing is also provided with a pusher 5 that can slide along the length direction of the lock housing. The axle 22 of the combination wheel assembly is arranged along the length direction of the lock housing. The end of the wheel shaft 22 protrudes toward the pushing system 5 ; the pushing system 5 extends a projection 51 toward the locking hook 9 .

When locking, password is correct, and wheel shaft 22 can't telescopic movement, and the end of wheel shaft 22 pushes against the side of pushing system 5, to limit the sliding of pushing system 5, projection 51 pushes against locking hook 9;

In this embodiment, the combination wheel 21 of the combination wheel assembly is exposed on the upper end surface and the lower end surface of the lock case, so that the thickness (internal height) of the lock case is reduced, that is, the upper and lower parts of the combination wheel 21 are exposed outside the lock case, and the inner height of the lock case is equal to the height of the middle volume of the combination wheel 21, which greatly reduces the space occupied by the lock case in the height direction, thereby achieving the effect of thinner thickness, reducing the preparation materials of the lock case, thereby reducing the lock case. weight, so as to achieve the effect of lighter quality. The clasp lock has a simple and compact overall structure, convenient and quick operation, and good anti-theft performance.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present utility model, rather than limiting the protection scope of the present utility model. Although the utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solution of the utility model can be modified or equivalently replaced without departing from the essence and scope of the technical solution of the utility model.

Claims (10)

1. A frivolous combination lock, characterized in that: comprise a lock housing and a code wheel assembly installed inside the lock housing, the upper end surface of the lock housing is provided with at least two first through holes, the lower end surface of the lock housing is provided with at least two second through holes, and each of the first through holes corresponds to one of the second through holes in vertical alignment; The cipher wheel assembly includes at least two cipher wheels, and each of the cipher wheels is correspondingly placed between the first through hole and the second through hole, so that the upper part of the cipher wheel is exposed outside the first through hole and the lower part of the cipher wheel is exposed outside the second through hole, and the part of the cipher wheel exposed outside the first through hole and/or the second through hole has a height less than half of the height of the cipher wheel. 2 . The light and thin combination lock according to claim 1 , further comprising a base and a bottom buckle, one end of the lock case is hinged to the base through a hinge, and the other end of the lock case is locked with the bottom buckle. 3 . The light and thin combination button lock according to claim 2 , wherein a groove is formed on the side of the bottom button facing the lock case for the combination wheel to be inserted into. 4 . 4 . The light and thin combination buckle lock according to claim 1 , wherein an elastic piece is fixedly installed in the lock housing, and the free end of the elastic piece abuts against the outer peripheral side of the combination wheel. 5 . 5. A light and thin combination button lock according to claim 2, characterized in that: the lock housing is provided with a lock core arranged along the length direction of the lock housing, a movable part and a lock hook snap-fastened with the bottom buckle, the lock hook is rotatably installed in the lock housing, and an elastic member is provided between the lock housing and the lock hook to drive the lock hook to rotate in the locking direction, the movable part can slide along the length direction of the lock housing, the lock core is movably connected with the movable part, and the lock hook extends toward the movable part to unlock part, the movable part extends a pushing part towards the unlocking part; When the lock cylinder is unlocked, the lock cylinder is rotated, the lock cylinder pushes the movable part to slide toward the lock hook, and the pushing part of the movable part abuts against the unlocking part of the lock hook, so that the lock hook rotates toward the unlocking direction. 6. A light and thin combination lock according to claim 5, characterized in that: the unlocking part is set in a fan shape, the end face of the unlocking part facing the pushing part is an arc surface, the pushing part is arranged in a triangular shape, and the end face of the pushing part facing the unlocking part is an obliquely upward slope. 7. The light and thin combination lock according to claim 5, wherein the elastic member is a torsion spring or a spring. 8. A light and thin combination button lock according to claim 5, characterized in that: the bottom buckle extends a hook toward the side of the lock hook, and the end surface of the lock hook facing the hook is provided with a slot, and in the locked state, the hook is inserted into the slot. 9. A light and thin combination clasp lock according to claim 5, characterized in that: the lock cylinder extends downwards to a toggle portion, the movable part extends toward the bottom of the lock cylinder to a connection portion, and the connection portion is provided with an oblique hole, the toggle portion is inserted into the oblique hole and the toggle portion can slide along the length direction of the oblique hole. 10. A light and thin combination button lock according to claim 5, characterized in that: a pusher that can slide along the length direction of the lock case is also provided in the lock case, and the combination wheel assembly also includes a telescopically movable wheel shaft arranged along the length direction of the lock case, and the end of the wheel shaft protrudes toward the pusher; The push extends a projection toward the locking hook; When locking, the password is correct, the axle cannot be telescopically moved, the end of the axle is against the side of the pushing system to limit the sliding of the pushing system, and the protrusion is against the locking hook; When unlocking, if the password is correct, the wheel shaft can move telescopically, pushing the pusher to slide towards the lock hook, and the protrusion pushes the lock hook to rotate towards the unlocking direction.