CN2400538Y - Improved lock - Google Patents

Abstract

The utility model provides an improved lockset, by the sleeve, the lock core, the card film-making, the backstop piece, spring and key constitute, the sleeve is registrated with the lock core, set the card film-making between sleeve and the lock core, the card film-making can rotate with the sleeve is synchronous, card film-making internal face is equipped with a plurality of recesses, the backstop piece sets up in the lock core inside and can be in the inside axial slip of lock core, the backstop piece has the tenon to expose in the key hole and cooperate with the key, the backstop piece is equipped with the backstop reason and corresponds to the recess with the counterpoint groove, the counterpoint groove is then the sleeve with the recess counterpoint to the unblock state relatively rotatable to the lock core, and backstop reason and recess. The difficulty of illegal unlocking can be increased, the assembly is easy, and the cost is low.

Description

An Improved Lockset

The utility model relates to a lockset.

A general lock is composed of a lock core, a sleeve, a push pin arranged inside the lock core, and a locking pin between the sleeves. The clamping pin is pushed between the lock core and the sleeve, so that the lock core and the sleeve cannot rotate relative to each other, forming a locked state; in addition, after the key is mated, the clamping pin can be pushed to the lock core and the sleeve by pushing the pin The critical surface enables relative rotation between the lock core and the sleeve to form an unlocked state.

However, the thief first rotates the lock core and the sleeve to generate a shear force, and then uses the master key to insert it, and judges according to the force of the scissors corresponding to the pushing pin and the clamping pin, and then pushes the pins one by one. Push it to the correct unlocking position, and the lock can be opened illegally.

The above-mentioned traditional lock structure, due to the limitation of its internal space, greatly restricts the diameter of the clamping pin and the pushing pin, resulting in poor strength. After a heavy external force, it is easy to be forced to rotate due to the relative force between the lock core and the sleeve The resulting shear force is destroyed.

In addition, due to the numerous and small components such as the pushing pin, the clamping pin, and the spring, it is difficult to assemble, which greatly reduces the assembly efficiency.

Therefore, the main purpose of the present invention is to provide an improved lock, which can increase the difficulty of illegal unlocking, and has the characteristics of easy assembly and low cost.

For this reason, a kind of improved lockset of the utility model is made of sleeve, lock core, clamping sheet, stop piece, spring and key, is characterized in that: this sleeve fits with lock core, sleeve and There is a locking piece between the lock cores, which can rotate synchronously with the sleeve. There are multiple grooves on the inner wall of the locking piece. Sliding to the direction, and use the spring to generate the force of pushing outward. The stop piece has a tenon protruding from the key hole to cooperate with the key. The stop piece is provided with a stop edge and an alignment groove corresponding to the groove, and the alignment groove and When the groove is aligned, the sleeve and the lock core can be rotated to the unlocked state relative to each other, and when the stop edge and the groove are aligned, the sleeve and the lock core cannot rotate relative to each other because of mutual locking, and are in a locked state.

In addition, the utility model can also insert a plunger into the keyhole of the lock core, and there is still an appropriate gap between the keyhole and the plunger for the key to be inserted, so that the aperture of the keyhole can be reduced.

It can be seen that this kind of locking piece has the effect of increasing the difficulty of illegal unlocking due to the longer stroke and the different travel paths of the locking piece and the stop piece, and has the characteristics of easy assembly and low cost.

The technical content of the present utility model will be described in further detail below in conjunction with embodiment and with reference to accompanying drawings;

Description of drawings:

Fig. 1 is the three-dimensional exploded view of the utility model;

Figure 2 is a sectional view of the utility model in a locked state;

Fig. 3 is another sectional view of the utility model in a locked state;

Fig. 4 is a sectional view of the utility model in an unlocked state;

Fig. 5 is another sectional view of the utility model in an unlocked state.

As shown in Figure 1, an improved lockset of the present invention is composed of a sleeve 10, a lock core 20, a locking piece 3, a stop piece 40, a spring 50 and a key 60, wherein:

The sleeve 10 is a hollow cylinder, and its inner wall is provided with a locking groove 11 .

The lock core 20 fits with the sleeve 10, the outer wall of the lock core 20 is provided with a ring groove 21, the center of the lock core 20 is provided with a keyhole 22 that runs through front and back, and the wall surface of the keyhole 22 is provided with a number of coaxial chute 23 And through the ring groove 21.

The clamping sheet 30 is composed of two corresponding half-rings 31, the two half-rings 31 can fit into the ring groove 21, the outer edge of the half-rings 31 is provided with a projection 32 corresponding to the clamping groove 11, and the inner surface Then there are several grooves 33 corresponding to the slide grooves 23 .

The stop piece 40 is arranged inside the chute 23, and utilizes the spring 50 to produce the active force of pushing outwards. The outside of the stop piece 40 is provided with a stop edge 41 and an alignment groove 42 corresponding to the groove 33. The stop piece 40 The inner side is provided with a tenon 43 .

A plurality of protruding strips 61 corresponding to the slide grooves 23 are provided on the wall surface of the outer circumference of the key 60 to cooperate with the above-mentioned tenons 43 .

In addition, an insertion rod 70 can be inserted into the key hole 22 of the lock core 20 , and there is still an appropriate gap between the key hole 22 and the insertion rod 70 for the key 60 to be inserted, thereby reducing the aperture of the key hole 22 .

As shown in Figure 2 and Figure 3, under the normal state where the key 60 is not inserted, the utility model uses the elastic thrust of the spring 50 to make the stop edge 41 of the stop piece 40 embed in the groove 33 of the locking piece 30, Since the locking piece 30 rotates synchronously with the sleeve 10 through the cooperation of the protrusion 32 and the locking groove 11, and uses the stop edge 41 to be embedded in the groove 33, so that the lock core 20 cannot rotate relative to the sleeve 10, Appears locked.

As shown in Figure 4 and Figure 5, when the key 60 is inserted from the keyhole 22 to the position, each convex strip 61 will push each stop piece 40 sequentially, so that the alignment groove 42 on each stop piece 40 is aligned with the card. The tabs 30 are aligned, and at this moment, the lock core 20 can be rotated to the unlocked state.

Due to the displacement and arrangement of the locking piece 30 and the stop piece 40 in different directions in this utility model, and various factors such as the reduction of the key aperture, it is difficult for a thief to illegally open the lock core. In particular, the stop piece in the structure of the utility model The displacement path of 40 is coaxial with the lock core 20, so its displacement stroke can be extended accordingly. In addition to further improving the anti-theft performance, it can also increase the variability of the key 70 and greatly reduce the probability of the same key. In addition, the structure of the utility model is easier to assemble than the traditional lockset, thereby reducing the manufacturing cost.

To sum up, the utility model is an improved lock, because the stroke of the clamping element is longer, and the travel paths of the clamping piece and the stopper piece are different, the difficulty of illegal unlocking can be increased, and it is easy to assemble , low-cost characteristics, and progressive, so a utility model patent application is filed in accordance with the law.

Claims (2)

1, a kind of improved lockset, be by sleeve, core, clip, stop tab, spring and key constitute, it is characterized in that: this sleeve and core fit, set clip between sleeve and the core, this clip can rotate synchronously with sleeve, the clip internal face is provided with a plurality of grooves, this stop tab is to be arranged at core inside also can endwisely slip in core inside, stop tab has the protruding keyhole that is exposed to of tenon and cooperates with key, stop tab is provided with stop edge and alignment grooves corresponding to groove, alignment grooves and groove contraposition be the relative released state that can turn to core of sleeve then, and stop edge and groove contraposition then are locking condition.

2, lockset according to claim 1 is characterized in that: be inserted with an inserted link in the keyhole of core, and still leave suitable gap between keyhole and the inserted link and insert for key.

Images