CN212154434U

CN212154434U - Double-insertion type lock core capable of preventing accidental back locking

Info

Publication number: CN212154434U
Application number: CN202020681813.2U
Authority: CN
Inventors: 陆海丰
Original assignee: Suzhou Liting Lock Co ltd
Current assignee: Suzhou Liting Lock Co ltd
Priority date: 2020-04-28
Filing date: 2020-04-28
Publication date: 2020-12-15
Anticipated expiration: 2030-04-28

Abstract

The utility model relates to a but lock core of formula of inserting doubly and prevent unexpected anti-lock, it includes the lock body, door inside lock core portion, dial wheel and toggle axle core, wherein the toggle axle core includes the supporting axle subassembly, the dial wheel core, this dial wheel core has two, and two dial wheel core covers are established on the supporting axle subassembly, supply key insertion channel to have respectively on every dial wheel core, this supporting axle subassembly is including first connecting portion and the second connecting portion that can relative motion so that whole supporting axle subassembly length shortens, and make behind the motion first connecting portion and second connecting portion contact the piece that resets that can reset by oneself under the effort at the top that loses the key, when being in the key double-plug, first connecting portion and second connecting portion are drawn close together relatively. But lock core of double insertion formula and prevent unexpected anti-lock, the length of whole back shaft subassembly shortens to make two keys insert simultaneously and target in place, stir the axle core and be in the middle part of dialling the driving wheel, rotate another key behind the key and can rotate along with it, thereby prevent unexpected anti-lock.

Description

Double-insertion type lock core capable of preventing accidental back locking

Technical Field

The utility model belongs to two formula lock cores fields of inserting, concretely relates to lock core that can two formula of inserting and prevent unexpected back locking.

Background

At present, the commonly used lock core mainly comprises a lock body, an inner lock core part, an outer lock core part, a poking wheel and a poking shaft core, wherein the inner lock core part and the outer lock core part are respectively positioned in lock core holes at two ends of the same lock body, key holes are respectively arranged on the inner lock core part and the outer lock core part, the existing poking shaft core comprises a support shaft and poking wheel cores (also called as a clutch), the two poking wheel cores are respectively and movably sleeved on the support shaft, poking blocks capable of driving the poking wheel to rotate are respectively arranged on the two poking wheel cores, poking block clamping grooves corresponding to the poking blocks are respectively arranged at one ends of the inner lock core part and the outer lock core part close to the poking wheel, when the lock core is installed on the anti-theft door, the inner lock core part and the outer lock core part are respectively positioned at two sides of the anti-theft door, and the poking shaft core is pushed to move, one side of a shifting block on a shifting wheel core inserted into one end of a key is clamped in a shifting groove of a shifting wheel, the other side of the shifting block is clamped in a shifting block clamping groove on a lock core, the shifting block is rotated by the rotation of an inner lock core part or an outer lock core part of a door under the driving of the key, and the shifting block is rotated to drive the shifting wheel to rotate, so that the door is opened or reversely locked.

Because the key is firstly inserted into the lock cylinder at one side of the anti-theft door, the firstly inserted key pushes the poking shaft core to move towards the lock cylinder at the other side of the anti-theft door, the poking wheel core at the end where the key is not inserted moves out of the poking groove on the poking wheel, the firstly inserted key rotates again to drive the poking wheel to rotate, after the poking wheel rotates, the poking block on the poking wheel core outside the poking wheel is staggered with the poking groove of the poking wheel, the poking shaft core occupies the space where the lock cylinder at the key end is not inserted, and the length of the lock cylinder hole at the key end is not inserted is shortened, when the key is inserted into the lock cylinder of the other side of the anti-theft door, the key is inserted into the lock cylinder of the anti-theft door, the key inserted later cannot push the poking wheel core which is staggered with the poking groove of the poking wheel to move, the key inserted later cannot be completely inserted into the lock cylinder key hole of the lock cylinder, the key cannot rotate, and the action of opening the door or locking the door cannot be realized.

If a key is inserted into the key hole of the inner lock cylinder part of the door to open the door, the key can push the poking shaft core to move towards the outer lock cylinder part of the door, so that the poking wheel core matched with the lock cylinder part of the door is moved out of the poking groove on the poking wheel, the door is opened by rotating the key, and a person forgets to take out the key inserted into the key hole of the inner lock cylinder part of the door after going out and carelessly closes the door. In the same way, the method for preparing the composite material,

if a key is inserted into a key hole of a lock cylinder part at the outer side of a door to open the door, the key can push a poking shaft core to move towards the lock cylinder part at the inner side of the door, the door is opened by rotating the key, a person leaves the door and forgets to take out the key inserted into the lock cylinder part at the outer side of the door, and the door is closed carelessly. The current lock core is in daily use, forgets to take off the indoor key that inserts after opening the door when going out, and in careless closing the door, at this moment, outdoor people want to enter the room again, inserts outdoor outside door lock core portion with the same key and opens the door on, then the key can not insert outside door lock core portion completely at all in, cause the key can not rotate and can't open the door, often because of going to turn over the window and fall to die and fall to hinder, also often cause fire control officer to go to rescue and wasted manpower and materials (often there is such incident report on the TV), it is very inconvenient to use. When people in the room forget to take off the key after locking the door indoors for safety at night, people returning from the outside in the middle of the night can not insert the key from the outside to rotate to open the door, and only people who sleep in the room are waken to open the door. Similarly, when the door is unlocked from the outside and the key is forgotten to be removed when the door is taken out early, the indoor person cannot insert the key from the indoor and turn to open the door, and the indoor person cannot escape when an emergency such as a fire occurs. Therefore, the traditional mechanical lock cylinder of the anti-theft door is extremely inconvenient to use and brings troubles to daily life of people; in severe cases, the lock core can cause casualties and property loss or unexpected troubles, so that the original mechanical lock core cannot adapt to the requirements of the current life development of the door.

Disclosure of Invention

The utility model aims to solve the technical problem that overcome prior art not enough, provide a brand-new lock core that can double-insert and prevent unexpected back lock. The two keys can be simultaneously inserted into the inner side lock cylinder part and the outer side lock cylinder part of the door through the arrangement of the poking shaft core, one key is rotated, and the other key is also rotated along with the rotation of the other key, so that the capability of emergency is improved, and the door lock is simple in structure, convenient to implement and low in cost.

In order to solve the technical problem, the utility model discloses take following technical scheme:

a lock core capable of being inserted in two ways and preventing accidental back locking comprises a lock body, a door inner side lock core part, a door outer side lock core part, two dial wheels and a dial shaft core, wherein the dial shaft core comprises a support shaft assembly and two dial wheel cores provided with dial blocks matched with the dial wheels, each dial wheel core is provided with a channel for a key to be inserted in, the channel inlets of the two dial wheel cores are respectively sleeved on the support shaft assembly towards the door inner side lock core part and the door outer side lock core part, the support shaft assembly comprises a first connecting part and a second connecting part which can move relatively to shorten the length of the whole support shaft assembly, and a reset part which can automatically reset the first connecting part and the second connecting part under the action of top contact of the lost key after movement, when the lock core is in key double insertion, the first connecting part and the second connecting part are relatively close to each other, the length of the whole support shaft assembly is shortened, so that two keys can be inserted in place at the same time, the toggle shaft core is positioned in the middle of the toggle wheel, and after one key is rotated, the other key can be rotated along with the toggle shaft core, thereby preventing accidental back locking.

Preferably, the first connecting portion is a connecting bolt, the second connecting portion is a connecting sleeve, wherein the bolt head portion of the connecting bolt can be movably arranged in the connecting sleeve along the inserting direction of the key, the two shifting wheel cores are sleeved on the connecting portion where the connecting bolt and the connecting sleeve are butted in a manner of abutting against each other from the tail end of the channel, and the support shaft assembly further comprises a locking piece for limiting the connecting sleeve on the connecting bolt.

More preferably, the reset piece comprises elastic pieces respectively arranged between the two shifting wheel cores and the bolt caps and the connecting sleeves of the corresponding connecting bolts, when the elastic pieces are in an initial state, the two shifting wheel cores are arranged in a mode of being abutted against the tail ends of the channels, and the outer end faces of the bolt caps and the connecting sleeves are arranged in a flush mode with the outer end faces of the two shifting wheel cores.

According to a specific implementation and preferred aspect of the utility model, be equipped with ring groove at the end that the connecting bolt stretches out the adapter sleeve, the locking piece is established the jump ring in ring groove for the card.

Preferably, the connecting bolt, the connecting sleeve and the clamp spring are all made of copper.

Preferably, the elastic element is a spring and is sleeved on the bolt rod of the connecting bolt and the connecting sleeve respectively.

According to the utility model discloses a still another concrete implementation and preferred aspect, the lock core still including the cover establish on the supporting axle subassembly and with two spaced apart spacer pieces of thumb wheel core. Through the setting of interval gasket for the spring is keeping a little tension state, and then provides the assurance for the synchronous rotation of two thumb wheel cores.

Preferably, the outer diameter of the spacer is equal to the diameter of the thumb wheel core. Meanwhile, the spacer is also made of copper.

According to a further embodiment and preferred aspect of the present invention, a notch is provided at one side of each of the thumb wheel cores to avoid insertion of a key. The key insertion angle is limited by the position of the notch, and meanwhile, the volume of the poking shaft core can be reduced, and materials are saved.

Preferably, there are two shifting blocks on every group wheel core, and be first shifting block and second shifting block respectively, and wherein first shifting block is located the bottom of breach and constitutes the spacing portion after the key inserts, and the second shifting block extends and is located the opposite side of breach along group wheel core length direction, and when stirring the installation of axle core, the first shifting block of a group wheel core in two group wheel cores aligns the setting with the second shifting block of another group wheel core. So that the directions of the bidirectional insertion of the key are in the same plane.

In addition, the lock core also comprises a plurality of tumblers which are arranged on the lock body in a row, wherein the head and the tail of the plurality of tumblers in the row are made of bearing steel. Therefore, the drill bit can hardly damage the lock cylinder, and the drilling damage resistance of the drill bit is improved.

Due to the implementation of the above technical scheme, compared with the prior art, the utility model have the following advantage:

the utility model discloses a setting of stirring axle core for on two keys can insert the inside and outside lock core portion of door simultaneously, and rotate one of them key another key and also rotate thereupon, improve the ability of emergency that meets an emergency, and simple structure, it is convenient to implement, with low costs.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic structural view of the lock cylinder of the present invention;

FIG. 2 is an enlarged cross-sectional view of the toggle spindle core of FIG. 1;

FIG. 3 is an enlarged schematic view of the thumb wheel core of FIG. 2;

FIG. 4 is a schematic view of the moving process of the shifting core when the key is inserted in two directions;

wherein: 1. a lock body; 2. an inner door lock cylinder portion; 3. a door outer lock cylinder portion; 4. a poking wheel; 40. a slot clamping part; 5. a toggle shaft core (clutch); 50. a support shaft assembly; 501. a first connection portion (connection bolt); 502. a second connecting portion (connecting sleeve); 503. a reset member; a. a spring; 504. a locking piece (snap spring); 51. a wheel core is pulled; 51a, a channel; 51b, a notch; 511. a first shifting block; 512. a second shifting block; 6. a key; 7. a spacer; 8. and (4) a brake bolt.

Detailed Description

As shown in fig. 1 to 4, the lock cylinder capable of being inserted in two ways and preventing accidental back locking provided in this embodiment includes a lock body 1, an inner lock cylinder portion 2, an outer lock cylinder portion 3, a dial 4 and a dial shaft 5 (clutch).

Specifically, the toggle shaft core 5 comprises a support shaft assembly 50 and a toggle wheel core 51 with a toggle block matched with the toggle wheel 4, wherein a clamping groove part 40 matched with the toggle block is arranged in the toggle wheel 4.

In this example, there are two dial cores 51, each of the two dial cores 51 has a passage 51a for inserting the key 6, and the entrances of the passages 51a of the two dial cores 51 are respectively fitted over the support shaft assembly 50 toward the door inner side lock cylinder portion 2 and the door outer side lock cylinder portion 3.

Support shaft subassembly 50 is including first connecting portion 501 and the second connecting portion 502 that can relative motion so that whole support shaft subassembly length shortens, and make behind the motion first connecting portion 501 and second connecting portion 502 can reset 503 that resets by oneself under the top touch effort that loses key 6, when being in the key two times of inserting, first connecting portion 501 and second connecting portion 502 draw close relatively, whole support shaft subassembly 50's length shortens, so that two keys insert simultaneously and target in place, the toggle shaft core 5 is in the middle part of dial 4, another key can rotate along with it behind the rotation key, thereby prevent unexpected anti-lock.

Specifically, the first connecting portion 501 is a connecting bolt, the second connecting portion 502 is a connecting sleeve, a head portion of the connecting bolt can be movably disposed in the connecting sleeve along the inserting direction of the key, and the two shifting wheel cores 51 are sleeved on the connecting portion where the connecting bolt and the connecting sleeve are butted with each other from the end of the channel 51a in an abutting manner.

To prevent uncapping, the support shaft assembly 50 described above further includes a lock 504 for restraining the connection sleeve to the connection bolt.

In this embodiment, a ring slot is disposed at the end of the connecting bolt extending out of the connecting sleeve, and the locking member 504 is a snap spring clamped in the ring slot.

Meanwhile, the reset member 503 includes elastic members a respectively disposed between the two shifting wheel cores 51 and the corresponding cap and the connecting sleeve of the connecting bolt, when the elastic members a are in the initial state, the two shifting wheel cores 51 are disposed in a contact manner from the end of the passage 51a, and the outer end faces of the cap and the connecting sleeve are flush with the outer end faces of the two shifting wheel cores 51.

The elastic piece a is a spring and is respectively sleeved on the bolt rod of the connecting bolt and the connecting sleeve.

The lock core further comprises a spacer 7 which is sleeved on the support shaft assembly 50 and separates the two thumb wheel cores 51. Through the setting of interval gasket 7 for the spring is kept the little tension state, and then provides the assurance for the synchronous rotation of two thumb wheel cores 51.

Specifically, the outer diameter of the spacer 7 is equal to the diameter of the dial core 51.

The connecting bolt, the connecting sleeve, the spacing gasket 7 and the clamp spring are all made of copper.

In this example, a notch 51b is provided on one side of each of the thumb wheel cores 51 to avoid insertion of a key. The insertion angle of the key 6 is limited by the position of the notch 51b, and meanwhile, the volume of the toggle shaft core 5 can be reduced, and materials are saved.

The number of the poking blocks on each poking wheel core 51 is two, the first poking block 511 and the second poking block 512 are respectively arranged, wherein the first poking block 511 is positioned at the bottom of the notch 51b to form a limiting part after a key is inserted, the second poking block 512 extends along the length direction of the poking wheel core 51 and is positioned at the opposite side of the notch 51b, and when the poking shaft core 5 is installed, the first poking block 511 of one poking wheel core 51 of the two poking wheel cores 51 is aligned with the second poking block 512 of the other poking wheel core 51. So that the directions of the bidirectional insertion of the key are in the same plane.

In addition, the lock core further comprises a plurality of tumblers 8 arranged on the lock body 1 in a row, wherein the head and tail tumblers 8 of the plurality of tumblers 8 in the row are made of bearing steel. Therefore, the drill bit can hardly damage the lock cylinder, and the drilling damage resistance of the drill bit is improved.

In summary, in the present embodiment, through the arrangement of the toggle shaft core, two keys can be simultaneously inserted into the inner and outer lock cylinder parts of the door, and one of the two keys is rotated while the other key is rotated, so as to improve the capability of emergency, and the structure is simple, the implementation is convenient, and the cost is low.

The present invention has been described in detail, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the same, and the protection scope of the present invention should not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. But lock core of formula and prevent unexpected back lock of inserting, it includes lock body, door inside lock core portion, door outside lock core portion, thumb wheel and thumb shaft core, wherein thumb shaft core include the supporting axle subassembly, have with the thumb wheel core of thumb wheel phase-match thumb block, the thumb wheel core have two, every thumb wheel core on have respectively and supply the key to insert the passageway, and two the passageway entry of thumb wheel core is respectively towards the cover of door inside lock core portion and door outside lock core portion is established on the supporting axle subassembly, its characterized in that: the back shaft assembly includes that can relative motion so that whole first connecting portion and the second connecting portion that back shaft assembly length shortened and make the motion back first connecting portion and second connecting portion can reset by oneself under the top that loses the key touches the effort piece that resets, when being in the key two and inserting, first connecting portion and second connecting portion shrink relatively and draw close, the length of whole back shaft assembly shortens to make two keys insert simultaneously and target in place, the stirring shaft core be in the middle part of the dial wheel rotates another key behind the key and can rotate along with it, thereby prevents unexpected anti-lock.

2. The double-insertable and anti-accidental-back-locking lock cylinder according to claim 1, characterized in that: first connecting portion are the connecting bolt, second connecting portion be the adapter sleeve, wherein the bolt head portion of connecting bolt can set up along the direction of insertion of key movably in the adapter sleeve, two the thumb wheel core certainly the terminal inconsistent cover of passageway is established the connecting bolt with on the connecting portion that the adapter sleeve docked, the back shaft subassembly still including be used for with the adapter sleeve restriction is in locking piece on the connecting bolt.

3. The double-insertable and anti-accidental-back-locking lock cylinder according to claim 2, characterized in that: reset the piece including setting up respectively two dial the wheel core and corresponding elastic component between the bolt cap and the adapter sleeve of connecting the bolt, work as when the elastic component is in initial condition, two dial the wheel core certainly the terminal inconsistent setting of passageway, just the bolt cap with the outer terminal surface and two of adapter sleeve dial the outer terminal surface of wheel core and flush the setting mutually.

4. A double-insertable and anti-accidental-back-locking lock cylinder according to claim 2 or 3, characterized in that: the connecting bolt extends out the tail end of the connecting sleeve and is provided with an annular clamping groove, and the locking piece is a clamping spring clamped in the annular clamping groove.

5. The double-insertable and anti-accidental-back-locking lock cylinder according to claim 4, characterized in that: the connecting bolt, the connecting sleeve and the clamp spring are all made of copper.

6. A double-insertable and anti-accidental-back-locking lock cylinder according to claim 3, characterized in that: the elastic piece is a spring and is respectively sleeved on the bolt rod of the connecting bolt and the connecting sleeve.

7. The double-insertable and anti-accidental-back-locking lock cylinder according to claim 1, characterized in that: the lock core also comprises a spacer which is sleeved on the supporting shaft assembly and separates the two thumb wheel cores.

8. The double-insertable and anti-accidental-back-locking lock cylinder according to claim 7, characterized in that: the outer diameter of the spacing gasket is equal to the diameter of the poking wheel core.

9. The double-insertable and anti-accidental-back-locking lock cylinder according to claim 1, characterized in that: and a notch for avoiding the insertion of a key is arranged on one side of each poking wheel core.

10. The double-insertable and anti-accidental-back-locking lock cylinder according to claim 9, characterized in that: every dial on the wheel core and have two, and be first dial and second dial respectively, wherein first dial is located the bottom of breach constitutes the spacing portion after the key inserts, the second dial along dial wheel core length direction extends and is located the opposite side of breach, works as when the installation of stirring axle core, two dial in the wheel core dial first dial and another dial the wheel core the second dial the piece and align and set up.