CN107060513B

CN107060513B - Double-flexible spring lock core

Info

Publication number: CN107060513B
Application number: CN201611211944.9A
Authority: CN
Inventors: 关振玲; 黎善雄; 戚志
Original assignee: Guangdong Jusen Hardware Precision Manufacturing Co ltd
Current assignee: Guangdong Jusen Precision Technology Co ltd
Priority date: 2016-12-25
Filing date: 2016-12-25
Publication date: 2023-08-04
Anticipated expiration: 2036-12-25
Also published as: CN107060513A

Abstract

The utility model provides a two flexible bullet lock core, its includes outer lock pipe, interior lock pipe, shifting block, and interior lock pipe alternates in outer lock pipe, its characterized in that: the outer lock tube is internally provided with a flat ball groove for installing a long flat ball, a marble groove for installing marble is correspondingly arranged in the inner lock tube, and when the lock core is locked, the long flat ball is pushed into the marble groove by a flat ball spring to lock the inner lock tube; a starting nail is obliquely arranged in the tail end of the inner locking tube, and extends into a lock hole of the inner locking tube; the beneficial effects of the invention are as follows: on the basis of the traditional cylinder lock, a long flat bead and a unique starting piece structure are added, and the long flat bead can be unlocked after the starting piece moves upwards, so that the existing unlocking tool cannot extend into the structure, and the safety of the lock is improved.

Description

Double-flexible spring lock core

Technical Field

The invention relates to a mechanical anti-theft lock, in particular to a double-flexible spring lock cylinder.

Background

The existing lockset can be generally divided into a mechanical lock and an electronic lock, wherein the electronic lock is difficult to open, has high cost and needs continuous power supply, and can fail when no power is supplied. The mechanical lock core is composed of a columnar inner lock core, an outer lock core sleeved outside the inner lock core and a spring combination composed of inner and outer springs, wherein the spring combination is operated by a corresponding key tooth or pit, so that the inner and outer spring combination surfaces of all the spring combinations are simultaneously positioned on the inner and outer lock core combination surfaces, and the inner lock core can be twisted by a key to rotate relative to the outer lock core so as to unlock. However, such a mechanical lock with a simple structure is easily unlocked by a technique, so that the security is poor. Some of the pin tumbler combinations are arranged in rows, for example, the pin tumbler combinations are arranged at two sides of a straight plate key or in four directions of a cross key at the same time to improve the safety, but the principle is the same, so that the unlocking time of technical unlocking can be simply prolonged, and the safety is not improved substantially. Therefore, there is a need for further improvements in the safety of existing pin tumbler cylinders.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides the double-flexible spring lock cylinder which has the advantages of simple structure, convenient assembly and low production cost, can effectively enhance the difficulty of violent unlocking and improves the anti-theft performance.

The invention aims at realizing the following modes: a double-flexible spring lock core comprises an outer lock pipe, an inner lock pipe and a shifting head, wherein the inner lock pipe is inserted in the outer lock pipe, the shifting head is butted on the inner lock pipe through a coupling, and when the inner lock pipe rotates, the shifting head can be driven to rotate for unlocking; the outer lock tube is provided with a plurality of marble grooves for installing marbles, and the marbles are slidably installed in the marble grooves through marble springs; the inner lock tube on still set up the thimble groove of installation thimble, when the key was inserted, the tooth flower on the key made the top of thimble and the outer cylinder parallel and level of inner lock tube for marble and inner lock tube separation, inner lock tube side can rotate in outer lock tube and make the tool to lock open, its characterized in that: the outer lock tube is internally provided with a flat ball groove for installing a long flat ball, a marble groove for installing marble is correspondingly arranged in the inner lock tube, and when the lock core is locked, the long flat ball is pushed into the marble groove by a flat ball spring to lock the inner lock tube;

a starting nail is obliquely arranged in the tail end of the inner locking tube, and extends into a lock hole of the inner locking tube;

the front and back sides of the key are provided with starting grooves, functional pieces are hinged in the starting grooves, when the key is inserted, starting nails enter the starting grooves to push the functional pieces to tilt upwards, and the functional pieces enter the bullet grooves to push the balls to move upwards and outwards, so that the long flat beads are forced to be separated from the inner lock tube for unlocking.

The starting groove is a through groove formed in the key body material, the front end of the through groove is provided with a guide groove, and the guide groove is communicated with the front end of the key.

The front end of the key is provided with a guide surface which is tangent to the starting groove.

The starting groove is an open groove with a bottom.

The rear end of the starting groove is provided with a longitudinally distributed locking groove, a locking spring and a locking bead are arranged in the locking groove, the locking spring always pushes the locking bead outwards, and the locking bead is propped against the functional sheet.

The starting nail is inserted into the lock hole in an inclined way of 30-45 degrees.

The beneficial effects of the invention are as follows: 1. simple structure, convenient assembly, low production cost and market competitiveness improvement. 2. On the basis of the traditional cylinder lock, a long flat bead and a unique starting piece structure are added, and the long flat bead can be unlocked after the starting piece moves upwards, so that the existing unlocking tool cannot extend into the structure, and the safety of the lock is improved. 3. The front and back of the key are provided with the starting piece structure, so that the key does not need to distinguish the front and back for use, and the convenience of use of a user is improved.

Drawings

Fig. 1 is a diagram showing the overall assembly effect of the structure of the present invention.

Fig. 2 is a partial structural cross-sectional view of the outer lock tube of the present invention.

Fig. 3 is an assembly view of the structure of the present invention.

Fig. 4 is a general sectional view of the structure of the present invention.

Fig. 5 is a schematic view of the present invention with the activation panel in a folded state.

FIG. 6 is a schematic view of the starting sheet in a half-started state in the present invention.

FIG. 7 is a schematic view of the present invention showing the actuation tab in an actuated state.

Fig. 8 is a diagram showing the effect of the key in the normal state in the structure of the present invention.

Fig. 9 is a diagram showing the effect of unlocking a key in the structure of the present invention.

Detailed Description

The invention is described in more detail below with reference to the accompanying drawings. A double-flexible spring lock cylinder comprises an outer lock tube 1, an inner lock tube 2 and a poking head 3, wherein the inner lock tube 2 is inserted into the outer lock tube 1, the poking head 3 is butted on the inner lock tube 2 through a coupling 31, and when the inner lock tube 2 rotates, the poking head 3 can be driven to rotate for unlocking; the outer lock tube 1 is provided with a plurality of marble grooves 41 for installing the marble 4, and the marble 4 is slidably arranged in the marble grooves 41 through a marble spring 42; the inner lock tube 2 on still set up the thimble groove 51 of installation thimble 5, when key 6 inserts, the tooth flower 61 on the key 6 makes the top of thimble 5 and the outer cylinder parallel and level of inner lock tube 2 for marble 4 and inner lock tube 2 separation, inner lock tube 2 side can rotate in outer lock tube 1 and make the tool to lock open its characterized in that: the outer lock tube 1 is also internally provided with a flat bead groove 71 for installing a long flat bead 7, a marble groove 81 for installing a marble 8 is correspondingly arranged in the inner lock tube 2, and when the lock core is locked, the long flat bead 7 is pushed into the marble groove 81 by a flat bead spring 72 to lock the inner lock tube 2;

a starting nail 9 is obliquely arranged in the tail end of the inner locking tube 2, and the starting nail 9 extends into a lock hole of the inner locking tube 2;

the front and back sides of the key 6 are provided with a starting groove 62, a functional sheet 63 is hinged in the starting groove 62, when the key 6 is inserted, the starting nail 9 enters the starting groove 62, the functional sheet 63 is pushed to tilt upwards, the functional sheet 63 enters a bullet groove 81 to push the bullet 8 to move upwards and outwards, and the long flat beads 7 are forced to be separated from the inner lock tube 2 for unlocking.

The starting groove 62 is a through groove formed in the key body material, the front end of the through groove is provided with a guide groove 64, and the guide groove 64 is communicated with the front end of the key 6.

The front end of the key is provided with a guide surface 65, and the guide surface 65 is tangential with the starting groove 62.

The actuation slot 62 is a bottomed open slot.

The rear end of the starting groove 62 is provided with a longitudinally distributed locking groove 66, a locking spring 67 and a locking bead 68 are arranged in the locking groove 66, the locking spring 67 always pushes the locking bead 68 outwards, and the locking bead 68 is propped against the functional sheet 63.

The starting nail 9 is inserted into the lock hole in an inclined way of 30-45 degrees.

Working principle: as shown in fig. 5: when the lock core is locked, the marble in the outer lock tube is inserted into the thimble groove on the inner lock tube under the action of the marble spring, the flat marble spring 72 pushes the long flat marble 7 to be inserted into the marble groove 81 on the inner lock tube, and the marble and the long flat marble are utilized to lock the relative position between the inner lock tube and the outer lock tube, so that the lock core is in a locking state.

When unlocking is required, as shown in fig. 2 and 6, the user inserts the key into the lock hole, and as shown in fig. 8, the functional piece at the tail end of the key is folded into the starting groove on the key in a normal state. After the key is inserted, a starting pin 9 is obliquely arranged in the tail end of the inner lock tube 2, the starting pin 9 enters a guide groove on the key, the starting pin upwards turns up the functional sheet 63 by utilizing the guide effect of the inclined surface of the starting pin, so that the functional sheet enters the marble groove 81, the functional sheet pushes the marble 8 upwards, and in the movement process of the marble 8, the long flat beads 7 are pushed upwards, so that the long flat beads are separated from the inner lock tube. Meanwhile, the ejector pin 5 is matched with the tooth 61 on the key 6, and the ejector pin is used for separating the marble 4 from the inner lock tube, so that the unlocking purpose is realized.

Compared with the traditional single cylinder lock, the special function piece structure is additionally arranged in the scheme, the working positions of the function piece and the long flat beads are located at the innermost end of the lock cylinder, and the current unlocking tool cannot extend into and act upwards on the long flat beads, so that the lock cylinder cannot be unlocked by adopting a technical unlocking mode, and the safety of the lock is improved.

Further: in order to enable the key 6 of the lock to be used positively and negatively, the functional pieces in the scheme are arranged on the front side and the back side of the key, so that the functional pieces on the front side and the back side are arranged in a left-right staggered mode, and correspondingly, the arrangement of the starting nail and the long flat bead is required to deviate from the central line of the lock cylinder. Therefore, no matter the key is inserted from the front side to the back side, the functional sheet can be matched with the starting pin to unlock, so that the unlocking mode of the lockset is consistent with that of the traditional lock cylinder, the operation of a user is convenient, the property safety of the user of the consumer is ensured, and the lockset can be widely popularized and used in various anti-theft locksets.

Claims

1. The utility model provides a two flexible bullet lock cores, it includes outer lock pipe (1), interior lock pipe (2), plectrum (3), and interior lock pipe (2) alternate in outer lock pipe (1), and plectrum (3) dock on interior lock pipe (2) through shaft coupling (31), can drive plectrum (3) rotation unlocking when interior lock pipe (2) rotate; the outer lock tube (1) is provided with a plurality of marble grooves (41) for installing marbles (4), and the marbles (4) are slidably installed in the marble grooves (41) through marble springs (42); the inner lock tube (2) on still set up thimble groove (51) of installation thimble (5), when key (6) were inserted, tooth flower (61) on key (6) made the top of thimble (5) and the outer cylinder parallel and level of inner lock tube (2) for marble (4) and separation of inner lock tube (2), inner lock tube (2) side can rotate in outer lock tube (1) and make the tool to lock open, its characterized in that: the outer lock tube (1) is internally provided with a flat bead groove (71) for installing a long flat bead (7), a marble groove (81) for installing a marble (8) is correspondingly arranged in the inner lock tube (2), and when the lock core is locked, the long flat bead (7) is pushed into the marble groove (81) by a flat bead spring (72) to lock the inner lock tube (2);

a starting nail (9) is obliquely arranged in the tail end of the inner locking tube (2), and the starting nail (9) extends into a lock hole of the inner locking tube (2);

the front and back sides of the key (6) are provided with starting grooves (62), functional sheets (63) are hinged in the starting grooves (62), when the key (6) is inserted, starting nails (9) enter the starting grooves (62), the functional sheets (63) are pushed to tilt upwards, the functional sheets (63) enter the bullet grooves (81) to push the marble (8) to move upwards and outwards, and the long flat beads (7) are forced to be separated from the inner lock tube (2) for unlocking; the starting groove (62) is a through groove formed in the key body material, the front end of the through groove is provided with a guide groove (64), and the guide groove (64) is communicated with the front end of the key (6); the front end of the key is provided with a guide surface (65), and the guide surface (65) is tangential with the starting groove (62).

2. The dual play lock cylinder of claim 1, wherein: the starting groove (62) is an open groove with a bottom.

3. The dual play lock cylinder of claim 1, wherein: the rear end of the starting groove (62) is provided with a longitudinally distributed locking groove (66), a locking spring (67) and locking beads (68) are arranged in the locking groove (66), the locking spring (67) always pushes the locking beads (68) outwards, and the locking beads (68) are pressed against the functional sheet (63).

4. The dual play lock cylinder of claim 1, wherein: the starting nail (9) is inserted into the lock hole at an inclined angle of 30-45 degrees.