CN216476767U

CN216476767U - Multi-section lock cylinder with built-in key blank and key blank thereof

Info

Publication number: CN216476767U
Application number: CN202122863068.0U
Authority: CN
Inventors: 覃煊华
Original assignee: Guangzhou Xuanhua Hardware Products Co ltd
Current assignee: Guangzhou Xuanhua Hardware Products Co ltd
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-05-10
Anticipated expiration: 2031-11-22

Abstract

The utility model discloses a multi-section lock core with a built-in key blank and a key blank thereof, and relates to the technical field of keys, which comprises a shell, a middle lock core, an outer lock core and an inner lock core, wherein the inner side of the shell is sequentially and rotatably provided with the inner lock core and the outer lock core from inside to outside, the middle lock core is arranged on one side wall of the outer lock core close to the shell, the middle lock core is rotatably arranged on the inner wall of the shell, a plurality of groups of channels are arranged in the shell, the middle lock core and the outer lock core in a penetrating way, a first elastic sheet is arranged in the channels, a plurality of groups of channels are also arranged in the shell and the inner lock core in a penetrating way, a second elastic sheet is arranged in the channels in a sliding way, a built-in key is arranged in the inner lock core, a key core is arranged in the outer lock core, a lock groove and the first elastic sheet are symmetrically arranged on the side wall of the key core, the key core is connected with a key handle, and a connecting rod is arranged in the key core in a sliding way, the connecting rod is close to the one end of interior lock core and installs the actuating lever, has seted up the constant head tank on the interior lock core is close to the lateral wall of outer lock core.

Description

Multi-section lock cylinder with built-in key blank and key blank thereof

Technical Field

The utility model relates to the technical field of keys, in particular to a multi-section lock cylinder with a built-in key blank and the key blank thereof.

Background

In daily life, various anti-theft locks are often used for protecting property safety, and a pin tumbler lock and a side column lock are common anti-theft locks and are widely applied due to simple structures. However, the prior art anti-theft lock usually has a single row of pins, and the unlocking key is correspondingly provided with a row of passwords or grooves, when the lock is locked, the pins are clamped between the lock core and the lock shell, the lock core cannot rotate, when the key is inserted, the pins of the lock core fall into the password holes or grooves of the key, and the pins are located at positions which do not block the rotation of the lock core, so that the lock can be unlocked, however, after lawless persons become more familiar with the structure of the lock, the lock can still be easily unlocked through technical unlocking, or under the condition of violent torque, prying or technical unlocking, the lock is often broken to achieve the purpose of illegal unlocking, and the anti-theft performance of the lock is poor.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model aims to provide a multi-section lock core with a built-in key blank and the key blank thereof, and the anti-theft performance is stronger.

In order to achieve the purpose, the utility model provides the following technical scheme: the lock comprises a shell, a middle lock cylinder, an outer lock cylinder and an inner lock cylinder, wherein the inner side of the shell is sequentially and rotatably provided with the inner lock cylinder and the outer lock cylinder from inside to outside, the middle lock cylinder is arranged on one side wall of the outer lock cylinder close to the shell, the middle lock cylinder is rotatably arranged on the inner wall of the shell, a plurality of groups of channels are formed in the shell, the middle lock cylinder and the outer lock cylinder in a penetrating manner, a first elastic sheet is slidably arranged in the channels, the first elastic sheet consists of three rod bodies, the shell, the middle lock cylinder and the outer lock cylinder are respectively and symmetrically and slidably arranged in the shell, a spring is arranged at the bottom of the first elastic sheet and is ejected out from the bottom of the outer lock cylinder under the action of the spring, a plurality of groups of channels are also formed in the shell and the inner lock cylinder in a penetrating manner, a second elastic sheet is slidably arranged in the channels, the second elastic sheet consists of two rod bodies and is respectively and slidably arranged in the shell and the inner lock cylinder, and the bottom of the second elastic sheet is also connected with the spring, the second shell fragment pops out from the bottom of interior lock core under the effect of spring, the inside of interior lock core is provided with built-in key simultaneously, set up some locked grooves and second shell fragments symmetry setting on the lateral wall of built-in key, and the inside of outer lock core is provided with the key core, set up some locked grooves and first shell fragment symmetry setting on the lateral wall of key core, the one end of key core stretches out from the lateral wall of shell, the end that stretches out of key core links together with the key handle, carry out horizontal motion through key handle control key core, the inside slidable mounting of key core has the connecting rod simultaneously, the actuating lever is installed to the one end that the connecting rod is close to interior lock core, and set up the constant head tank on the lateral wall that interior lock core is close to outer lock core.

As a further scheme of the utility model: a pair of telescopic connecting rods are installed on one side wall, close to the outer lock cylinder, of the built-in key, the other ends of the telescopic connecting rods are installed in the side wall of the sliding rail in a sliding mode, the sliding rail is installed on the side wall of the supporting plate, the supporting plate is installed on the inner wall of the shell, and a side plate is installed on the outer wall, close to the sliding rail, of one side of each telescopic connecting rod.

As a further scheme of the utility model: the through-hole has been seted up to the inside of key core, and connecting rod slidable mounting is in the through-hole to logical groove has been seted up to the inside of key handle, and the through-hole with lead to the inslot, and the tip of connecting rod stretches into logical inslot, wherein the end of stretching into of connecting rod is connected with the slide, slide slidable mounting is leading to the inslot, and a side wall mounting that the slide is close to the connecting rod simultaneously has reset spring, and reset spring's the other end is installed on the inner wall of key core.

As a further scheme of the utility model: the slide keeps away from and sets up flutedly on the lateral wall of connecting rod, and a pair of pivot is installed to the recess internal rotation, installs the push pedal on the outer wall of pivot to install magnet on the one side inner wall that the pivot was kept away from to the push pedal, glue two push pedals together through magnet.

As a still further scheme of the utility model: the outer lock cylinder and the inner lock cylinder are connected together.

Due to the adoption of the technical scheme, the utility model has the following advantages: the utility model is provided with an outer lock core and an inner lock core, the inner side of the outer lock core is provided with a middle lock core, the inner part of the inner lock core is provided with a built-in key, a key core is arranged in the outer lock core, a connecting rod is slidably arranged in the key core, a driving rod is arranged at one end of the connecting rod close to the inner lock core, a positioning groove is arranged on one side wall of the inner lock core close to the outer lock core, wherein the outer lock core and the inner lock core are connected together to ensure that the outer lock core and the inner lock core keep synchronous movement, during unlocking, the key core is inserted into the outer lock core, then the connecting rod is pushed to push the driving rod into the positioning groove, the inner lock core is pushed to move inwards, the first elastic sheet and the second elastic sheet are synchronously pushed to move inwards, the outer lock core and the inner lock core are opened, can rotate key handle and drive outer lock core and interior lock core and rotate, play the motion of unblanking, adopt the setting of multiunit lock core, the security is higher.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partial enlarged view of the present invention at a.

Fig. 3 is a partial enlarged view of the present invention at B.

Figure 4 is a side view of the skateboard of the present invention.

As shown in the figure: 1. the lock comprises a shell, 2, a middle lock cylinder, 3, an outer lock cylinder, 4, an inner lock cylinder, 5, a first elastic sheet, 6, a second elastic sheet, 7, an inner key, 8, a key cylinder, 9, a connecting rod, 10, a driving rod, 11, a positioning groove, 12, a supporting plate, 13, a telescopic connecting rod, 14, a sliding rail, 15, a side plate, 16, a tensioning spring, 17, a key handle, 18, a through hole, 19, a through groove, 20, a sliding plate, 21, a reset spring, 22, a pushing plate, 23, a groove, 24, a rotating shaft, 25 and a magnet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 4, in the embodiment of the present invention, a multi-section lock cylinder with a built-in key blank and a key blank thereof include a housing 1, a middle lock cylinder 2, an outer lock cylinder 3 and an inner lock cylinder 4, wherein the inner side of the housing 1 is sequentially rotatably installed with the inner lock cylinder 4 and the outer lock cylinder 3 from inside to outside, a side wall of the outer lock cylinder 3 close to the housing 1 is installed with the middle lock cylinder 2, the middle lock cylinder 2 is rotatably installed on the inner wall of the housing 1, a plurality of sets of channels are formed through the interiors of the housing 1, the middle lock cylinder 2 and the outer lock cylinder 3, a first elastic sheet 5 is installed in each channel, the first elastic sheet 5 is composed of three rod bodies, the housing 1, the middle lock cylinder 2 and the outer lock cylinder 3 are respectively and symmetrically and slidably installed in each channel, a spring is installed at the bottom of the first elastic sheet 5, the spring is ejected from the bottom of the outer lock cylinder 3 under the action of the spring, and a plurality of sets of channels are also formed through the interiors of the housing 1 and the inner lock cylinder 4, a second elastic sheet 6 is arranged in the channel in a sliding manner, the second elastic sheet 6 consists of two rod bodies and is respectively arranged in the shell 1 and the inner lock cylinder 4 in a sliding manner, the bottom of the second elastic sheet 6 is also connected with a spring, the second elastic sheet 6 is ejected out from the bottom of the inner lock cylinder 4 under the action of the spring, a built-in key 7 is arranged in the inner lock cylinder 4, a lock groove formed in the side wall of the built-in key 7 and the second elastic sheet 6 are symmetrically arranged, a key core 8 is arranged in the outer lock cylinder 3, a lock groove formed in the side wall of the key core 8 and the first elastic sheet 5 are symmetrically arranged, one end of the key core 8 extends out from the side wall of the shell 1, the extending end of the key core 8 is connected with a key handle 17, the key core 8 is controlled to move horizontally by the key handle 17, a connecting rod 9 is arranged in the key core 8 in a sliding manner, one end of the connecting rod 9, which is close to the inner lock cylinder 4, is provided with a driving rod 10, and interior lock core 4 has been seted up constant head tank 11 on being close to a lateral wall of outer lock core 3, wherein outer lock core 3 links together with interior lock core 3, make outer lock core 3 and interior lock core 3 keep the simultaneous movement, at the in-process of unblanking, insert key core 8 in outer lock core 3, then promote connecting rod 9 and push actuating lever 10 in constant head tank 11, promote interior lock core 4 to move to the inboard, promote first shell fragment 5 and the inboard motion of second shell fragment 6 in step, open outer lock core 3 and interior lock core 4, can rotate key handle 17 and drive outer lock core 3 and interior lock core 4 and rotate, play the motion of unblanking, adopt the setting of multiunit lock core, the security is higher, it is higher to crack the degree of difficulty.

Referring to fig. 2, it can be seen that: a pair of telescopic connecting rods 13 are installed on one side wall of the built-in key 7 close to the outer lock cylinder 3, the other ends of the telescopic connecting rods 13 are slidably installed in the side wall of a sliding rail 14, the sliding rail 14 is installed on the side wall of a supporting plate 12, the supporting plate 12 is installed on the inner wall of the shell 1, a side plate 15 is installed on the outer wall of one side of the telescopic connecting rods 13 close to the sliding rail 14, the side plate 15 is connected with the built-in key 7 through a tensioning spring 16, and the built-in key 7 is reset through the tensioning spring 16.

Referring to fig. 3, it can be seen that: the through hole 18 is opened in the inside of the key core 8, the connecting rod 9 is slidably mounted in the through hole 18, the through groove 19 is opened in the inside of the key handle 17, the through hole 18 is communicated with the through groove 19, the end part of the connecting rod 9 extends into the through groove 19, the extending end of the connecting rod 9 is connected with the sliding plate 20, the sliding plate 20 is slidably mounted in the through groove 19, the reset spring 21 is mounted on one side wall of the sliding plate 20 close to the connecting rod 9, the other end of the reset spring 21 is mounted on the inner wall of the key core 8, and the connecting rod 9 is retracted into the through hole 18 under the tensioning action of the reset spring 21.

Specifically, a groove 23 is formed in one side wall of the sliding plate 20 away from the connecting rod 9, a pair of rotating shafts 24 are rotatably mounted in the groove 23, a push plate 22 is mounted on the outer wall of the rotating shaft 24, a magnet 25 is mounted on the inner wall of one side of the push plate 22 away from the rotating shaft 24, and the two push plates 22 are adhered together through the magnet 25; in the unlocking process, the two push plates 22 are rotated to be in the horizontal state, the connecting rod 9 can be pushed to move inwards through the push plates 22, the driving rod 10 is inserted into the positioning groove 11, and the key core 8 and the built-in key 7 are connected together to perform synchronous unlocking movement.

Claims

1. Multi-section lock core and key embryo with built-in key embryo, including shell (1), well lock core (2), outer lock core (3) and interior lock core (4), its characterized in that: the inner side of the shell (1) is sequentially provided with an inner lock cylinder (4) and an outer lock cylinder (3) in a rotating mode from inside to outside, a middle lock cylinder (2) is installed on one side wall, close to the shell (1), of the outer lock cylinder (3), the middle lock cylinder (2) is installed on the inner wall of the shell (1) in a rotating mode, a plurality of groups of channels are formed in the shell (1), the middle lock cylinder (2) and the outer lock cylinder (3) in a penetrating mode, a first elastic sheet (5) is installed in the channels in a sliding mode, the first elastic sheet (5) is composed of three rod bodies, the shell (1), the middle lock cylinder (2) and the outer lock cylinder (3) are installed in a sliding mode symmetrically and in a sliding mode respectively, springs are installed at the bottoms of the first elastic sheets (5), the springs are ejected from the bottoms of the outer lock cylinders (3) under the action of the springs, meanwhile, a plurality of groups of channels are also formed in the shell (1) and the inner lock cylinder (4) in a penetrating mode, and a second elastic sheet (6) is installed in the channels in a sliding mode, the second elastic sheet (6) is composed of two rod bodies and is respectively arranged in the shell (1) and the inner lock cylinder (4) in a sliding mode, the bottom of the second elastic sheet (6) is also connected with a spring, the second elastic sheet (6) is ejected out from the bottom of the inner lock cylinder (4) under the action of the spring, meanwhile, a built-in key (7) is arranged inside the inner lock cylinder (4), a lock groove formed in the side wall of the built-in key (7) and the second elastic sheet (6) are symmetrically arranged, a key cylinder (8) is arranged inside the outer lock cylinder (3), a lock groove formed in the side wall of the key cylinder (8) and the first elastic sheet (5) are symmetrically arranged, one end of the key cylinder (8) extends out of the side wall of the shell (1), the extending end of the key cylinder (8) is connected with a key handle (17), the key cylinder (8) is controlled to move horizontally through the key handle (17), and a connecting rod (9) is arranged inside the key cylinder (8) in a sliding mode, a driving rod (10) is installed at one end, close to the inner lock cylinder (4), of the connecting rod (9), and a positioning groove (11) is formed in one side wall, close to the outer lock cylinder (3), of the inner lock cylinder (4).

2. The multi-section lock cylinder with the built-in key blank and the key blank thereof as claimed in claim 1, wherein: a pair of telescopic connecting rods (13) are installed on one side wall, close to the outer lock cylinder (3), of the built-in key (7), the other ends of the telescopic connecting rods (13) are installed in the side wall of a sliding rail (14) in a sliding mode, the sliding rail (14) is installed on the side wall of a supporting plate (12), the supporting plate (12) is installed on the inner wall of the shell (1), and a side plate (15) is installed on the outer wall, close to the sliding rail (14), of one side of the telescopic connecting rods (13).

3. The multi-section lock cylinder with the built-in key blank and the key blank thereof as claimed in claim 1 or 2, wherein: through-hole (18) have been seted up to the inside of key core (8), connecting rod (9) slidable mounting is in through-hole (18), and logical groove (19) have been seted up to the inside of key handle (17), through-hole (18) and logical groove (19) intercommunication are in the same place, and the tip of connecting rod (9) stretches into in logical groove (19), wherein the end of stretching into of connecting rod (9) is connected with slide (20), slide (20) slidable mounting is in logical groove (19), slide (20) are close to a side wall mounting of connecting rod (9) simultaneously and are had reset spring (21), the other end of reset spring (21) is installed on the inner wall of key core (8).

4. The multi-section lock cylinder with the built-in key blank and the key blank thereof as claimed in claim 3, wherein: offer on the lateral wall that connecting rod (9) were kept away from in slide (20) recess (23), a pair of pivot (24) are installed to recess (23) internal rotation, install push pedal (22) on the outer wall of pivot (24) to install magnet (25) on push pedal (22) keep away from one side inner wall of pivot (24), glue two push pedals (22) together through magnet (25).

5. The multi-section lock cylinder with the built-in key blank and the key blank thereof as claimed in claim 1 or 2, wherein: the outer lock cylinder (3) and the inner lock cylinder (4) are connected together.