CN107060527A - A kind of lockset - Google Patents

Abstract

The invention discloses a lock, which comprises a lock tongue and a plurality of successively stacked lock cylinder units, the lock cylinder unit comprises a lock cylinder inner wheel provided with a lock hole and a lock cylinder outer wheel provided with the unlocking opening, the lock cylinder A locking device is provided between the inner wheel of the lock core and the outer wheel of the lock core; when the locking device is in an unlocked state, the inner wheel of the lock core can rotate around the axis of the lock hole relative to the outer wheel of the lock core, so In the locked state, the locking device can relatively fix the inner wheel of the lock core and the outer wheel of the lock core. In this lockset, the protrusions of each lock core unit and the unlocking opening can be rotated relative to each other, and can be locked by the locking device after the rotation, so that the relative deflection angle of each protrusion can correspond to the lock joint of the new key , so that the new key can open the lock, even if the lock no longer needs to be replaced, it only needs to be replaced with a new key, so the lock can effectively solve the problem of reduced security when the lock key is lost.

Description

a lock

technical field

The invention relates to the technical field of tool machinery, and more specifically, to a lock.

Background technique

Locks are a social product with a long history, and with the development of science and technology, economy and society, the current public safety protection system gradually pays attention to the confidentiality, firmness, reliability and durability of locks, as well as the practicality of installation. There are higher requirements.

After long-term research by the inventor, it was found that when the key of a common mechanical lock is lost, it is generally necessary to replace the entire lock for safety reasons. Not only the replacement is troublesome, but also the replacement cost is huge, which in turn makes it difficult to change the lock.

To sum up, how to effectively solve the problem of reduced safety when the lock key is lost is an urgent problem for those skilled in the art.

Contents of the invention

In view of this, the object of the present invention is to provide a lock, which can effectively solve the problem of reduced safety when the key of the lock is lost.

In order to achieve the above object, the present invention provides the following technical solutions:

A lock, comprising a lock tongue and a plurality of successively stacked lock core units, the lock hole of the lock core unit is provided with a protrusion that cooperates with a key, and when the unlocking openings of each lock core unit overlap along the axis of the lock hole , the lock tongue can enter the retracted state, and the lock cylinder unit includes a lock cylinder inner wheel provided with a lock hole and a lock cylinder outer wheel provided with the unlocking opening, and a gap between the lock cylinder inner wheel and the lock cylinder outer wheel A locking device is provided; when the locking device is in the unlocked state, the inner wheel of the lock core can rotate around the axis of the lock hole relative to the outer wheel of the lock core, and when the locking device is in the locked state, it can The inner wheel of the lock cylinder is relatively fixed to the outer wheel of the lock cylinder.

Preferably, the locking device includes a slot and a tab, and the front end of the tab is provided with a tab that can be snapped into the slot and detached from the slot when the tab is elastically deformed. One of the inner wheel of the lock cylinder and the outer wheel of the lock cylinder is provided with a plurality of the card slots, the other is provided with the tongue, and the plurality of the card slots are arranged along an arc coaxial with the lock hole. Set in sequence.

Preferably, the locking tongue is provided on the outer wheel of the lock cylinder, and the locking groove is provided on the inner wheel of the lock cylinder.

Preferably, it also includes a resealed hole, and when the lock tongue is in a retracted state, the tabs of each of the lock core units overlap at the resealed hole and overlap with the said resealed hole in the transverse direction. There are gaps between the walls of the densified holes.

Preferably, it includes a base, the lock tongue is slidably fitted with the base, and a connecting rod with one end hinged to the base and a column at the other end, between the column and the base A spring member is provided for pushing the cylinder into the unlocking opening at a predetermined position.

Preferably, the base includes a cover member and a stopper wheel fixed to the cover member, and the stopper wheel rotatably connected to the lock cylinder unit is arranged between two adjacent lock cylinder units.

Preferably, an outer side of the stop wheel is provided with a cam that interferes with the cover.

Preferably, the base is provided with a slide that slides with the lock tongue, and a guide rail that slides with the lock tongue is provided inside the slide.

Preferably, one of the plurality of lock cylinder units is an anti-tamper unit, and further includes a lock disc that rotates synchronously with the tamper-resistant unit, and the unlocking opening on the lock disc is connected with the anti-tamper unit. The unlocking opening of the pry unit overlaps, the protrusion in the lock hole of the lock disc overlaps with the protrusion in the lock hole of the anti-pry unit, and the lock disc is provided with an elastic clip against the anti-pry unit, The elastic clip can be inserted into the locking hole of the tamper-resistant unit to prevent the tamper-proof unit from rotating relative to the lock disc when the tamper-proof unit and the lock disc are rotated relative to each other until the unlocking opening is staggered.

A lock set provided by the present invention, specifically, the lock set includes a lock tongue and a lock cylinder unit. A plurality of lock core units are stacked in sequence, and the lock core unit includes a lock core inner wheel and a lock core outer wheel, a lock hole is arranged on the lock core inner wheel, and an unlocking opening is arranged on the lock core outer wheel. A locking device is arranged between the inner wheel of the lock cylinder and the outer wheel of the lock cylinder, so that the inner wheel of the lock cylinder and the outer wheel of the lock cylinder are relatively fixed. The outer wheel rotates around the axis of the lock hole; and when the locking device is in the locked state, the inner wheel of the lock core and the outer wheel of the lock core can be relatively fixed to prevent the relative rotation of the two.

According to the above technical solution, it can be known that when the lock is used, when the key is lost, the lock tongue is in the retracted state at this time, and then the unlocking openings of the lock cylinder unit are overlapped at this time, and then the locking device is in the In the unlocked state, insert a new key, and after the new key rotates a certain angle, the inner wheel of the lock cylinder of each lock cylinder unit rotates accordingly, so that the relative deflection angle of each protrusion is the same as the deflection angle of each lock joint of the key. Correspondingly, then make the locking device enter the locked state, make the outer ring of the lock cylinder and the inner wheel of the lock cylinder of each lock cylinder unit relatively fixed, and then turn the new key in the opposite direction. When turning in the opposite direction, each unlocking opening is staggered. When the dead bolt is stretched out, continue to rotate in the opposite direction until each protrusion overlaps, at this time, the key can be pulled out, and the key is changed successfully. In this lockset, the protrusions and the unlocking openings of each lock core unit can be rotated relatively, and can be locked by the locking device after the rotation, and after the relative rotation, after each unlocking opening overlaps, each protrusion at this time There is a change in the relative deflection angle of each protrusion, so that the old key cannot be opened again, and the relative deflection angle of each protrusion corresponds to the lock section of the new key, so that the new key can open the lock, even if the lock no longer needs to be replaced. It only needs to be replaced with a new key, so the lock can effectively solve the problem of reduced safety when the lock key is lost.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a schematic diagram of the internal structure of the lockset provided by the embodiment of the present invention;

Fig. 2 is a schematic structural view of the stuck elastic clip provided by the embodiment of the present invention;

Fig. 3 is a schematic diagram of the external structure of the lockset provided by the embodiment of the present invention;

Fig. 4 is a schematic diagram of a partial structure of a lock tongue in a retracted state provided by an embodiment of the present invention.

The marks in the attached drawings are as follows:

Lock tongue 1, lock cylinder outer wheel 2, lock cylinder inner wheel 3, unlocking opening 4, protrusion 5, tongue 6, hole 7, connecting rod 8, cylinder 9, stop wheel 10, cover 11, lock plate 12. The elastic clip 13.

detailed description

The embodiment of the invention discloses a lock to effectively solve the problem of reduced safety when the key of the lock is lost.

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Figure 1-Figure 4, Figure 1 is a schematic diagram of the internal structure of the lock provided by the embodiment of the present invention; Figure 2 is a schematic structural diagram of the elastic clip provided by the embodiment of the present invention in a stuck state; Figure 3 is a schematic diagram of the embodiment of the present invention A schematic diagram of the external structure of the provided lock; FIG. 4 is a schematic diagram of the partial structure of the lock tongue in the retracted state provided by the embodiment of the present invention.

In a specific embodiment, this embodiment provides a lock, specifically, the lock includes a base, a lock tongue 1 and a lock cylinder unit.

The base is used to install the door body or the frame body, and the lock tongue 1 is slidingly fitted relative to the base. When returning to the state, the lockset enters the open state.

A plurality of lock core units are stacked one after another, and each lock core unit is respectively arranged correspondingly to the corresponding lock section on the key. A protrusion 5 is provided in the lock hole of the lock cylinder unit, and an unlock opening 4 is provided on the lock cylinder unit at the same time, and after the unlock opening 4 of each lock cylinder unit overlaps along the axis of the lock hole, the lock tongue 1 enters and retracts state, that is, any unlocking opening 4 among the unlocking openings 4 of each lock cylinder unit does not overlap with other unlocking openings 4, which will cause the deadbolt 1 to fail to enter the retracted state. What needs to be explained here is that when the staggered angles of the projections 5 of each lock cylinder unit correspond to the staggered angles of the corresponding lock joints on the key, when the key is inserted into the lock hole and rotated over a certain angle, each lock will inevitably be The unlocking openings 4 of the core unit overlap to complete unlocking. And when the key reversely rotates until each boss overlaps, the unlocking opening 4 of each lock core unit is then staggered and set at this time, and now the dead bolt 1 will enter the extended state, and after the protrusions overlap, the key can be pulled out.

In this embodiment, the lock cylinder unit includes a lock cylinder inner wheel 3 and a lock cylinder outer wheel 2 , a lock hole is provided on the lock cylinder inner wheel 3 , and the above-mentioned unlocking opening 4 is provided on the lock cylinder outer wheel 2 . A locking device is arranged between the lock core inner wheel 3 and the lock core outer wheel 2, so that the lock core inner wheel 3 and the lock core outer wheel 2 are relatively fixed. Specifically, when the locking device is in the unlocked state, the lock core inner wheel 3 can rotate around the axis of the lock hole relative to the outer wheel 2 of the lock cylinder, so that the protrusion 5 of the inner wheel 3 of the lock cylinder forms different angles with the unlocking opening 4 of the outer wheel 2 of the lock cylinder; and when the locking device is in the locked state , the inner wheel 3 of the lock cylinder and the outer wheel 2 of the lock cylinder can be relatively fixed to prevent the two from rotating relative to each other, so that when the key drives the protrusion 5 to rotate, it drives the inner wheel 3 of the entire lock cylinder to rotate, and the inner wheel 3 of the lock cylinder It is relatively fixed with the outer wheel 2 of the lock cylinder, so the outer wheel 2 of the lock cylinder will also rotate, and then the unlocking opening 4 is rotated to the unlocking position for unlocking.

In this embodiment, when using the lockset, when the key is lost, the deadbolt 1 is in the retracted state at this time, and then the unlocking openings 4 of the lock cylinder unit are overlapped, and then the locking device is unlocked. In this state, a new key is inserted, and after the new key is rotated at a certain angle, the inner wheel 3 of each lock cylinder unit rotates correspondingly, so that the relative deflection angle of each protrusion 5 is offset from each lock joint of the key. Corresponding angles, and then make the locking device into the locked state, so that the outer wheel 2 of the lock cylinder and the inner wheel 3 of the lock cylinder of each lock cylinder unit are relatively fixed, and then turn the new key in the opposite direction. When turning in the opposite direction, each unlocking opening 4 are staggered, and now the dead bolt 1 is stretched out, and continues to rotate in the opposite direction until each protrusion 5 overlaps, at this time, the key can be pulled out, and the key is changed successfully. In this lockset, the protrusion 5 of each lock core unit and the unlocking opening 4 can be rotated relatively, and can be locked by the locking device after the rotation, and after the relative rotation, after the unlocking opening 4 overlaps, the There is a change in the relative deflection angle of each projection 5, so that the old key cannot be opened, and the relative deflection angle of each projection 5 corresponds to the lock section of the new key, so that the new key can open the lock, even if the lock is no longer needed. Replacement only needs to be replaced with a new key, so the lock can effectively solve the problem of reduced safety when the lock key is lost.

Further, the locking device may include a slot and a tab 6 , and the front end of the tab 6 is provided with a tab that can be inserted into the slot and detached from the slot when the tab 6 is elastically deformed. On the inner wheel 3 of the lock cylinder and the outer wheel 2 of the lock cylinder, one is provided with a card slot, and is provided with a plurality of card slots, while the other is provided with a snap tongue 6, so as to be snapped into the slot by the snap protrusion of the snap tongue 6 Finally, stop the lock core inner wheel 3 and the lock core outer wheel 2 from relatively rotating, and when the tab 6 is pulled to be under elastic deformation, the tab can be rotated around the rear end of the tab 6, and then the tab can be disengaged from the slot. At the same time, a plurality of draw-in slots should be provided, and the plurality of draw-in slots are arranged sequentially along the circular arc coaxially arranged with the lock hole, so that the draw-in protrusion has a plurality of snap-in positions, and then the lock cylinder inner wheel 3 and the lock cylinder outer wheel 2 There are a plurality of deflection positions in between, and at each deflection position, the locking protrusion can be snapped into the locking groove, so that the lock core inner wheel 3 and the lock core outer wheel 2 are relatively fixed. It should be noted that the locking device can also be a clamping device or a latch, but both are inconvenient to operate. Wherein the snap tongue 6 can be arranged on the outer wheel 2 of the lock cylinder, and can also be arranged on the inner wheel 3 of the lock cylinder. In order to ensure the snap-in state and the torque that can withstand is relatively large, the locking protrusion should be arranged as close to the axis of the lock hole as possible. But considering that the setting of deadbolt 1 is easy to reduce the strength of this part, based on this, it is preferred that a snap tongue 6 is arranged on the outer wheel 2 of the lock cylinder here, and a draw-in groove is provided on the inner wheel 3 of the lock cylinder, and a plurality of draw-in grooves are arranged continuously , forming alveoli.

Further, it is preferable to provide a modified hole 7 to facilitate elastic deformation of the tongue 6 through the modified hole 7 . At this time, when the dead bolt 1 is in the retracted state, the snap tongues 6 of each lock core unit can be overlapped at the modified hole 7, and the snap tongue 6 is aligned with the lateral direction of the modified hole 7 in the lateral direction of the modified hole 7. There is a gap between the walls of the holes, so as to facilitate elastic deformation of the tab 6 after the rod is inserted into the gap, so that the protrusion of the tab 6 is disengaged from the slot. In order to facilitate the operation, the encryption hole 7 can be a cylindrical hole, and a corresponding encryption key is provided. The rear end of the encryption key is a cylindrical part matched with the cylindrical hole, and the front end has a flattened hole that matches the gap or is flat. The dial is used to rotate the dial when the encryption key is turned, so as to push the tab 6 to rotate, so that the protrusion of the tab 6 is disengaged from the slot.

Further, the preferred dead bolt 1 is slidingly fitted with the base here, and also includes a connecting rod 8, one end of the connecting rod 8 is hinged with the dead bolt 1, so as to be able to pull the dead bolt 1 to stretch out or move out, while the other end of the connecting rod 8 A cylinder 9 is provided. An elastic piece is arranged between the cylinder 9 and the base, and the elastic piece is used to push the cylinder 9 into the unlocking opening 4 at a predetermined position. Of course, after the key pushes the lock cylinder unit to rotate a certain angle, each lock The unlocking opening 4 of the core unit will overlap at a predetermined position, and after overlapping, the elastic member pushes the cylinder 9 to snap into the unlocking opening. And continue to rotate towards this direction, promptly can drive connecting rod 8 to have one end of cylinder 9 to rotate, so that the other end of connecting rod 8 drives dead bolt 1 telescopic movement. It should be noted that, in order to ensure the stability of the movement of the deadbolt 1, the base is provided with a guide rail that slides and fits with the deadbolt 1, and a sliding opening is provided on the shell of the base, and the guide rail is arranged on the inner side of the sliding opening. In order to guide the bolt 1 at the same time. And when turning the key in the opposite direction, at the predetermined position, the unlocking opening 4 will be in rotation, and the side wall of the unlocking opening 4 will push the cylinder 9 to move out of the unlocking opening 4, so that the side wall of the cylinder 9 is in contact with the outside of the lock cylinder unit. Offset, now dead bolt 1 is in stretched out state. It should be noted that, after each unlocking opening 4 overlaps at a predetermined position, the lock bolt 1 enters the retracted state under trigger at this time, how to realize it specifically, can also refer to the prior art.

Further, in order to facilitate assembly, it is preferable that the base here includes a cover 11 and a stop wheel 10 relatively fixed to the cover 11, and a stop wheel 10 rotatably connected to the lock core unit is arranged between two adjacent lock cylinder units , and the lock cylinder unit located on the outside can be rotatably connected with the cover 11 directly, or can be rotatably connected with the stop wheel 10 . During installation, a stop wheel 10 and a lock cylinder unit can be fixed first to form a combined unit, and then the stop wheels 10 of the combined unit are fixedly connected with the cover 11 in turn, which greatly improves the assembly speed. Wherein the cover 11 and the stop wheel 10 can be bolted or clamped. In order to facilitate the connection, it is preferred that the stop wheel 10 is provided with a cam that interferes with the groove of the cover 11. Further, In order to fix the cover 11 and the stop wheel 10 , a stop card fixed on the cover 11 is preferably provided here, and the stop card is snapped into the groove of the stop wheel 10 . In order to control the assembly angle conveniently, it is preferred that two cams of different sizes are arranged on the outer side of the stopper wheel 10 . At this time, a pressing device may also be provided to press each stop wheel 10 from the axial direction of the lock hole. In order to prevent the lock tongue 1 from moving arbitrarily, a retaining spring is also arranged between the lock tongue 1 and the cover 11 .

Further, one lock core unit in a plurality of lock cylinder units can be made as a tamper-proof unit, and a lock disc 12 is provided at the same time, and the lock disc 12 is provided with an unlocking opening 4 overlapping with the unlocking opening 4 of the tamper-resistant unit, and the lock The protrusion 5 in the lock hole of the disk 12 overlaps with the protrusion 5 in the lock hole of the tamper-resistant unit. At the same time, an elastic clip 13 that is against the anti-pry unit is provided, and the elastic clip 13 can be inserted into the card hole of the anti-pry unit to prevent the anti-pry unit when the anti-pry range element and the lock plate 12 are rotated relative to the unlocking opening 4 and staggered. The tamper-resistant unit rotates relative to the lock disc 12. At this time, no matter what kind of key is used, the lock can no longer be opened. After the lock must be removed by violence, the elastic clip 13 withdraws, so that the tamper-resistant unit and the lock disc 12 continue to rotate relative to unlocking The openings 4 overlap. It should be noted that when setting the key, the new key should overlap the corresponding lock segments of the lock disc 12 and the tamper-proof unit, so that the key drives the lock cylinder unit to rotate, and when the tamper-proof unit is driven to rotate, the lock disc 12 will be driven synchronously. turn. And when unlocking personnel, when not knowing that the protrusion 5 of the lock disc 12 can not be staggered by the protrusion 5 of the tamper-proof unit, when picking the lock, when pushing the protrusion 5 one by one, the protrusion 5 of the lock disc 12 unit will inevitably be caused Staggered with the protrusion 5 of the tamper-resistant unit, and then cause the lock to be stuck, and can no longer be opened, so as to greatly increase the safety of the lock. Wherein the elastic clip 13 can specifically include an elastic part and a bolt, wherein the elastic part is fixed on the lock plate 12 to push the bolt against the side of the tamper-resistant unit, and the tamper-proof unit is provided with a card on both sides or one side of the bolt. hole, so that when the tamper-proof unit rotates relative to the lock plate 12, the bolt is snapped into the locking hole of the tamper-proof unit.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. be provided with a kind of lockset, including dead bolt and multiple lock core units being sequentially stacked, the lockhole of the lock core unit with The projection that key coordinates, and when the unblock opening of each lock core unit is overlapping along lockhole axis direction, the dead bolt energy Enough enter retracted mode, it is characterised in that lock core unit includes being provided with the lock core lubrication groove of lockhole and being provided with the unblock opening The lock core foreign steamer of mouth, locking device is provided between the lock core lubrication groove and the lock core foreign steamer；The locking device is in unblock Under state, the axis that the lock core lubrication groove can be relative to the lock core foreign steamer around the lockhole is rotated, and the locking device is in lock Under tight state, the lock core lubrication groove can be made to be relatively fixed with the lock core foreign steamer.

2. lockset according to claim 1, it is characterised in that the locking device includes neck and block tongue, the block tongue Front end be provided with and can be caught in the neck and can depart from the card convex of neck, institute in the case where the block tongue is in elastic deformation State one in lock core lubrication groove and the lock core foreign steamer be provided with multiple necks, another be provided with the block tongue, it is multiple The neck edge is set gradually with the circular arc that lockhole is coaxially disposed.

3. lockset according to claim 2, it is characterised in that the block tongue, the lock are provided with the lock core foreign steamer The neck is provided with in-core wheel.

4. lockset according to claim 3, it is characterised in that also including changing close hole, retracted mode is in the dead bolt When, the block tongue of each lock core unit changes overlapping at close hole and changes close with described in the horizontal direction for changing close hole described There is gap between the hole wall in hole.

5. lockset according to claim 4, it is characterised in that including pedestal, the dead bolt is slidably matched with the pedestal, Also include that one end and the pedestal are hinged, the other end is provided with the connecting rod of cylinder, be provided between the cylinder and the pedestal For the spring part for promoting the cylinder to enter in the unblock opening in pre-position.

6. lockset according to claim 5, it is characterised in that the pedestal includes cover piece and stopping that the cover piece is mutually fixed The stopping wheel being rotatably connected with the lock core unit is provided between driving wheel, the two neighboring lock core unit.

7. lockset according to claim 6, it is characterised in that be provided with the outside of the stopping wheel and the cover piece interference The cam of cooperation.

8. lockset according to claim 7, it is characterised in that be provided with what is be slidably matched with the dead bolt on the pedestal The guide rail being slidably matched with the dead bolt is provided with the inside of sliding mouth, the sliding mouth.

9. the lockset according to claim any one of 1-8, it is characterised in that described in one in multiple lock core units Lock core unit is pick-proof unit, in addition to keeps the unblock in the lock collar of synchronous axial system, the lock collar to open with the pick-proof unit The unblock superposition of end gap of mouth and the pick-proof unit, the lockhole internal projection of the lock collar and the lockhole internal projection of the pick-proof unit It is overlapping, the flexible clamp piece offseted with the pick-proof unit is provided with the lock collar, the flexible clamp piece can be in the pick-proof When unit and the lock collar relatively rotate to unblock opening and staggered, it is caught in the hole clipping of the pick-proof unit to prevent pick-proof list Member is rotated relative to the lock collar.