CN214170208U

CN214170208U - Lock cylinder locking mechanism

Info

Publication number: CN214170208U
Application number: CN202022538547.0U
Authority: CN
Inventors: 郭永康
Original assignee: Foshan City Nanhai District Meipin Hardware Electrical Appliance Co ltd
Current assignee: Foshan City Nanhai District Meipin Hardware Electrical Appliance Co ltd
Priority date: 2020-11-05
Filing date: 2020-11-05
Publication date: 2021-09-10
Anticipated expiration: 2030-11-05

Abstract

The utility model discloses a lock core locking mechanism, which comprises a lock body, an inner lock liner and a shifting pin, wherein the lock body is provided with a hollow part; the inner lock liner is arranged at one end of the lock body, and a locking element is telescopically arranged on the inner lock liner; the poking foot is rotatably arranged in the hollow part, the poking foot is provided with an inner cavity, the locking element is positioned in the inner cavity, a first elastic element is axially arranged between the poking foot and the inner lock liner, the poking foot is provided with a lock hole matched with the locking element, and when the poking foot is pushed away by the first elastic element, the locking element is clamped in the lock hole. The utility model discloses broken off the back off with the fingers and thumb in the outside of lock body by violence, dial the foot and lock in the inner lock courage, the restriction is rotated from the outside and is dialled the foot and realize unblanking, has good theftproof performance.

Description

Lock cylinder locking mechanism

Technical Field

The utility model belongs to the technical field of the tool to lock technique and specifically relates to a locking mechanical system of lock core is related to.

Background

The security door protects the security of family entry, and the key of the security door is a security door lock, and the core component of the security door lock is a lock cylinder. The improvement of the anti-theft performance of the anti-theft lock cylinder mainly starts from two aspects of anti-technical opening and anti-explosion force opening, wherein the anti-explosion force opening is considered from the aspects of improving the structure and improving the material strength. The lock core is usually designed by connecting a shifting pin through a clutch mechanism on a lock liner so as to drive the shifting pin to rotate to realize unlocking or locking, and is usually provided with an inner lock liner and an outer lock liner which are positioned at two sides, and the shifting pin is connected with the clutch mechanism on one lock liner; however, the existing lock core is simple in structure, when the outer lock core is broken off by tools such as calipers and the like, the poking feet are exposed, even if the clutch mechanism of the inner lock core is connected with the poking feet, the clutch mechanism can be pushed away from the outside through the tools, and unlocking can be achieved by directly rotating the poking feet.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a locking mechanical system of lock core breaks off the back off with the fingers and thumb by violence in the outside of lock body, dials the foot and locks in the inner lock courage, and the restriction is rotated from the outside and is dialled the foot and realize unblanking, has good theftproof performance.

According to the utility model discloses locking mechanical system of lock core, include: a lock body having a hollow portion; the inner lock liner is arranged at one end of the lock body, and a locking element is telescopically arranged on the inner lock liner; the poking foot is rotatably arranged in the hollow part, the poking foot is provided with an inner cavity, the locking element is positioned in the inner cavity, a first elastic element is axially arranged between the poking foot and the inner lock liner, the poking foot is provided with a lock hole matched with the locking element, when the poking foot is pushed away by the first elastic element, the locking element is clamped in the lock hole.

The technical scheme at least has the following beneficial effects: after the outside of the lock body is broken off with a strong force through a tool from the outside, the poking feet lose the acting force pressed against the outside of the lock body, and under the tension action of the first elastic element, the poking feet axially move outwards to enable the locking element on the inner lock liner to be clamped into the lock holes of the poking feet, so that the poking feet are locked on the inner lock liner, the poking feet cannot be rotated from the outside to open the door lock, and the anti-theft performance is effectively improved.

According to some embodiments of the utility model, the inner lock courage radially is provided with first installation room, locking element slide set up in the first installation room, still installed second elastic element in the first installation room, second elastic element is used for the drive locking element card is gone into the lockhole.

According to some embodiments of the invention, the locking element is a cylinder, the locking element comprises a first section and a second section, the diameter of the first section is larger than the diameter of the locking hole, and the diameter of the second section is smaller than the diameter of the locking hole.

According to some embodiments of the invention, the locking element is provided with a first receiving cavity for receiving the second elastic element.

According to some embodiments of the utility model, the inner lock courage is provided with the holding ring, the inner wall of inner chamber is provided with the constant head tank, first elastic element's one end is located the holding ring, the other end is located the constant head tank.

According to the utility model discloses a few embodiments, it is provided with the sliding tray to dial the foot, the sliding tray is followed the endwise slip who dials the foot is connected with the spring bolt on the slip direction of spring bolt, the spring bolt with buffer clearance has between the sliding tray.

According to the utility model discloses a some embodiments, dial the foot and be provided with first pinhole along the axial, first pinhole by the lateral wall of sliding tray extends to dial the tip of foot, first pinhole is connected with the bolt, the spring bolt be provided with bolt sliding fit's second pinhole.

According to some embodiments of the utility model, the spring bolt with be connected with third elastic element between the sliding tray, third elastic element is located in the buffering clearance, just third elastic element's tension direction is followed the slip direction setting of spring bolt.

According to some embodiments of the present invention, the spring bolt is provided with a second accommodating cavity for accommodating the third elastic element, one end of the third elastic element abuts against the bottom wall of the second accommodating cavity, and the other end of the third elastic element abuts against the side wall of the sliding groove.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a lock cylinder in an embodiment of the present invention;

fig. 2 is a right side sectional view of the lock cylinder in the embodiment of the present invention;

FIG. 3 is a schematic structural view of a locking element according to an embodiment of the present invention;

FIG. 4 is a sectional view of a portion of the inner lock cylinder connected to the poking leg according to the embodiment of the present invention;

FIG. 5 is a schematic structural view of the poking foot according to the embodiment of the present invention;

fig. 6 is an exploded view of the pushing member according to the embodiment of the present invention.

Reference numerals:

a lock body 100, a hollow 110;

the inner lock core 200, the locking element 210, the first section 211, the second section 212, the first accommodating cavity 213, the first mounting chamber 220, the second elastic element 230 and the positioning ring 240;

the locking device comprises a shifting pin 300, an inner cavity 310, a first elastic element 320, a locking hole 330, a positioning groove 340, a sliding groove 350, a buffer gap 351, a locking bolt 360, a second pin hole 361, a third elastic element 362, a second accommodating cavity 363, a first pin hole 370 and a plug 380.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 4, an embodiment of the present invention provides a lock mechanism of a lock cylinder, including a lock body 100, a hollow portion 110 is disposed in a middle portion of the lock body 100, an inner lock core 200 is connected to an inner end of an inner side of the lock body 100, it can be understood that an outer lock core is connected to an outer end of the lock body 100, a poking foot 300 is rotatably connected to the hollow portion 110, the poking foot 300 is used for unlocking or locking, the poking foot 300 is cylindrical, the poking foot 300 has a through inner cavity 310, a positioning groove 340 is disposed on an inner wall of the inner cavity 310, an annular groove 340 is disposed on the positioning groove 340, the positioning groove 340 extends from an end of the poking foot 300 to an inner portion of the poking foot 300, an end of the inner lock core 200 extends into the inner cavity 310, a first elastic element 320 is sleeved on the inner lock core 200, the first elastic element 320 is configured as a spring, the structure is simple, a positioning ring 240 is disposed on an outer wall of the inner lock core 200, one end of the first elastic element 320 abuts against the positioning ring 240, the other end is accommodated in the positioning groove 340 and abuts against the groove wall of the positioning groove 340, so that the first elastic element 320 can be effectively positioned, and the first elastic element 320 is prevented from being displaced and losing efficacy; the inner lock core 200 is further provided with a locking element 210 in a telescopic manner along the radial direction, the locking element 210 is located in the inner cavity 310, and the poking foot 300 is provided with a locking hole 330 which is matched with the locking element 210. When the lock body 100 is in an intact state, the striking pin 300 inwardly presses the first elastic element 320 under the abutting action of the outer part of the lock body 100, so that the first elastic element 320 is in a compressed state, and the end part of the locking element 210 abuts against the inner wall of the striking pin 300; when the outside of the lock body 100 is broken by a tool from the outside, the poking legs 300 lose the acting force of the outside pressing of the lock body 100, and under the tension of the first elastic element 320, the poking legs 300 move axially outwards, so that the end parts of the locking elements 210 on the inner lock liner 200 extend out and are clamped into the lock holes 330 of the poking legs 300, the poking legs 300 are locked on the inner lock liner 200, and when the door lock is in a locking state, the inner lock liner 200 does not rotate, so that the poking legs 300 cannot be rotated from the outside to open the door lock, and the anti-theft performance is effectively improved. The locking state of the inner cylinder 200 can be released from the inner side of the door, and the door lock can be opened by the inner cylinder 200 driving the striking pin 300 to rotate, so that the door opening from the inner side is not influenced even if the lock body 100 is damaged.

Referring to fig. 2, in the present embodiment, two locking elements 210 are provided, a first through mounting chamber 220 is radially provided on the inner lock cylinder 200, the first mounting chamber 220 is a through hole, two ends of the first mounting chamber 220 are respectively connected with the locking elements 210 in a sliding manner, a second elastic element 230 is further accommodated in the first mounting chamber 220, the second elastic element 230 is a spring, the structure is simple, the second elastic element 230 is located between the two locking elements 210, and two ends of the second elastic element 230 respectively abut against the two locking elements 210, so as to achieve the telescopic arrangement of the locking elements 210; correspondingly, the side wall of the poking foot 300 is provided with two locking holes 330 matched with the locking elements 210, and the reliability of locking is improved by the two groups of locking elements 210 and the locking holes 330; when the lock body 100 is in a good state, the end portions of the two locking elements 210 abut against the inner wall of the tumbler 300, so that the second elastic element 230 is in a compressed state, and after the tumbler 300 moves axially outwards, under the action of the tension of the second elastic element 230, the end portions of the two locking elements 210 extend out of the first mounting chamber 220 and are clamped into the lock hole 330, so that the tumbler 300 is locked on the inner lock cylinder 200, and the anti-theft performance is improved.

Referring to fig. 3, in the present embodiment, the locking element 210 is a cylinder, the locking element 210 includes a first section 211 and a second section 212, the diameter of the first section 211 is larger than the diameter of the locking hole 330, the first section 211 is just matched with the first mounting chamber 220, and the diameter of the second section 212 is smaller than the diameter of the locking hole 330, so that the locking element 210 has a main body structure with a step shape, when the locking element 210 is inserted into the locking hole 330 under the tension of the second elastic element 230, the first section 211 limits the locking element 210 from further extending out of the locking hole 330, and the locking element 210 is prevented from falling off from the locking hole 330 and being unable to lock the deadbolt 300 to the inner lock container 200, which results in failure.

Referring to fig. 2 and 3, further, the locking element 210 is provided with a first accommodating cavity 213, the first accommodating cavity 213 is disposed in the first section 211, and two ends of the second elastic element 230 are respectively accommodated in the first accommodating cavities 213 of the two locking elements 210, so that on one hand, the installation is facilitated, on the other hand, the structure in the first installation chamber 220 is more compact, and the problem of failure caused by the loosening or displacement of the second elastic element 230 can be avoided.

Referring to fig. 5 and 6, further, the setting foot 300 is connected with a lock tongue 360, specifically, a sliding groove 350 is arranged on a side wall of the setting foot 300, the lock tongue 360 is connected to the sliding groove 350 in a sliding manner along an axial direction of the setting foot 300, a buffer gap 351 is formed between the lock tongue 360 and the side wall of the sliding groove 350 in the sliding direction of the lock tongue 360, the lock tongue 360 and the setting foot 300 are in non-rigid connection, and the lock tongue 360 and the setting foot 300 can move relatively in the axial direction; in the process that the outside of the lock body 100 is broken off, the lock body 100 may deform, and the lock body 100 may clamp the locking tongue 360 to limit the axial movement of the locking tongue 360, and since the buffer gap 351 is formed between the locking tongue 360 and the sliding groove 350, even if the locking tongue 360 cannot move axially, the poking foot 300 can move axially and outwardly within the distance range of the buffer gap 351, so that the locking element 210 is inserted into the locking hole 330 to lock the poking foot 300 on the inner lock cylinder 200, and the reliability is increased.

Referring to fig. 6, further, a first pin hole 370 is further formed in the dial leg 300, the first pin hole 370 is formed in the axial direction of the dial leg 300, the first pin hole 370 extends from the side wall of the sliding groove 350 to the end of the dial leg 300, a latch 380 is connected to the first pin hole 370, the latch 380 is inserted into the sliding groove 350, a second pin hole 361 in sliding fit with the latch 380 is formed in the lock tongue 360, so that the lock tongue 360 is slidably connected to the dial leg 300, the dial leg 300 can drive the lock tongue 360 to rotate to achieve unlocking or locking, meanwhile, the lock tongue 360 can be installed by inserting the latch 380 into the end of the dial leg 300, and the installation is convenient.

Referring to fig. 6, further, a third elastic element 362 is connected between the latch tongue 360 and the sliding groove 350, the third elastic element 362 is located in the buffer gap 351, the third elastic element 362 is a spring, the structure is simple, two third elastic elements 362 are provided, the two third elastic elements 362 are respectively provided at two sides of the latch pin 380, and the tension direction of the third elastic elements 362 is arranged along the sliding direction of the latch tongue 360, so that the buffer gap 351 is maintained between the latch tongue 360 and the side wall of the sliding groove 350 in the sliding direction of the latch tongue 360, and the reliability is further increased.

Referring to fig. 6, further, a second accommodating cavity 363 for accommodating a third elastic element 362 is disposed on the locking tongue 360, one end of the third elastic element 362 is accommodated in the second accommodating cavity 363 and abuts against a bottom wall of the second accommodating cavity 363, and the other end of the third elastic element 362 extends out of the second accommodating cavity 363 and abuts against a side wall of the sliding groove 350, so that the mounting structure of the third elastic element 362 is more compact, and the third elastic element 362 is prevented from being loosened or displaced to cause failure.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A lock mechanism for a lock cylinder, comprising:

a lock body (100) having a hollow portion (110);

the inner lock cylinder (200) is arranged at one end of the lock body (100), and a locking element (210) is arranged on the inner lock cylinder (200) in a telescopic mode;

the poking foot (300) is rotatably arranged in the hollow part (110), the poking foot (300) is provided with an inner cavity (310), the locking element (210) is positioned in the inner cavity (310), a first elastic element (320) is axially arranged between the poking foot (300) and the inner lock liner (200), the poking foot (300) is provided with a lock hole (330) matched with the locking element (210), when the poking foot (300) is pushed away by the first elastic element (320), the locking element (210) is clamped into the lock hole (330).

2. The lock cylinder locking mechanism of claim 1, wherein: the inner lock container (200) is radially provided with a first installation chamber (220), the locking element (210) is arranged in the first installation chamber (220) in a sliding mode, a second elastic element (230) is further arranged in the first installation chamber (220), and the second elastic element (230) is used for driving the locking element (210) to be clamped into the lock hole (330).

3. The lock cylinder locking mechanism according to claim 2, wherein: the locking element (210) is a cylinder, the locking element (210) comprises a first section (211) and a second section (212), the diameter of the first section (211) is larger than that of the locking hole (330), and the diameter of the second section (212) is smaller than that of the locking hole (330).

4. The lock cylinder locking mechanism according to claim 2, wherein: the locking element (210) is provided with a first receiving cavity (213) for receiving the second elastic element (230).

5. The lock cylinder locking mechanism of claim 1, wherein: inner lock courage (200) are provided with holding ring (240), the inner wall of inner chamber (310) is provided with constant head tank (340), the one end of first elastic element (320) is located holding ring (240), and the other end is located constant head tank (340).

6. The lock cylinder locking mechanism of claim 1, wherein: the poking foot (300) is provided with a sliding groove (350), the sliding groove (350) is connected with a lock tongue (360) in a sliding mode along the axial direction of the poking foot (300), and a buffer gap (351) is formed between the lock tongue (360) and the sliding groove (350) in the sliding direction of the lock tongue (360).

7. The lock cylinder locking mechanism of claim 6, wherein: the poking foot (300) is provided with a first pin hole (370) along the axial direction, the first pin hole (370) is extended to the end part of the poking foot (300) through the side wall of the sliding groove (350), the first pin hole (370) is connected with a bolt (380), and the lock tongue (360) is provided with a second pin hole (361) in sliding fit with the bolt (380).

8. The lock cylinder locking mechanism of claim 6, wherein: a third elastic element (362) is connected between the bolt (360) and the sliding groove (350), the third elastic element (362) is positioned in the buffer gap (351), and the tension direction of the third elastic element (362) is arranged along the sliding direction of the bolt (360).

9. The lock cylinder locking mechanism of claim 8, wherein: a second accommodating cavity (363) for accommodating the third elastic element (362) is formed in the lock tongue (360), one end of the third elastic element (362) abuts against the bottom wall of the second accommodating cavity (363), and the other end abuts against the side wall of the sliding groove (350).