CN105113860A - An anti-technical opening lock cylinder - Google Patents

Abstract

A lock core against technical opening is composed of a lock shell, a lock core and a marble assembly, at least one marble of the marble assembly is composed of a main marble and a technical opening preventing marble which are connected into a whole, a tapered groove is formed in the technical opening preventing marble, the tapered end of a transverse bar slides into the tapered groove under the action of a pressure spring by means of the tapered groove and the tapered end which are matched between the technical opening marble and the transverse bar, the transverse bar can be hidden in the lock core or partially exposed out of the transverse bar sliding-out slot of the lock shell in a door locking state, when a lawless person opens technically, the lock core must be slightly rotated, at the moment, a pin in the lock core is slightly rotated, at the moment, the outer end of the transverse bar is clamped in the transverse bar sliding-out slot, or the inner end and the outer end of the transverse bar respectively abut against the inclined plane of the tapered groove and the inner wall of the lock shell under the action of the inclined plane of the tapered groove, therefore, the lock cylinder cannot be continuously rotated to be opened, and the aim of preventing technical opening is fulfilled, so that the anti-theft lock is more reasonable in structure and stronger in anti-theft performance.

Description

An anti-technical opening lock cylinder

technical field

The invention relates to a structure of a lock cylinder.

Background technique

Most common lock cylinders on the market cannot prevent technology from being opened at present, and do not have anti-theft effect. Especially in recent years, after the impact snatching appeared on the market, the lock cylinder of the ordinary key can be opened in a few seconds when using the impact gun or the method of provocation, which seriously threatens the safety of the user's life and property. . In response to this phenomenon, this invention has been specially developed to meet the needs of the market.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the prior art and provide a lock cylinder with a more reasonable structure, stronger anti-theft performance and anti-technical opening function.

In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions:

An anti-technical opening lock cylinder, including a lock case, a lock cylinder, and several marble assemblies arranged in the lock casing and the lock cylinder, and the marble assembly includes a plug, a bead spring, a flat ball and a marble, Wherein the marble of at least one marble assembly is made up of the main marble and the anti-technical opening marble that are connected as one, and the marble holes on the lock cylinder corresponding to the main marble and the anti-technical opening marble are also connected by Composed of the main pinball hole and the anti-technical opening pinball hole, a tapered groove is opened on the anti-technical opening pinball; a horizontal strip that communicates with all the anti-technical opening pinball holes is opened on the lock bladder Shaped hole, a horizontal grid is placed in the horizontal strip hole; tablet grooves are respectively opened on the lock cylinders located at both ends of the horizontal strip hole; The protruding shoulder of the protruding piece, a pressure spring and a pressure piece are placed in the groove of the pressure piece; the two ends of the pressure spring respectively act on the shoulder and the pressure piece of the horizontal grid; The horizontal grid opposite to the outer end of the lower horizontal grid slides out of the slot; the inner end of the horizontal grid is tapered, and the tapered end of the horizontal grid can slide into the tapered groove; the elastic force ratio of the compression spring is The bead spring is small; the upper surface of the main marble is flush with the lock cylinder when the correct key is inserted so that the tapered end of the horizontal grid slides into the tapered groove.

In the improved solution to the above-mentioned anti-technical opening lock cylinder, the marbles of at least two marble assemblies are composed of the main marble and the anti-technical opening marble; when the door is locked, The upper end of the anti-technology opening marble of at least one of the marbles is a right-angled surface that can push the horizontal grid out so that its outer end is inserted into the sliding slot of the horizontal grid; the upper end of the anti-technology opening marbles of the remaining marbles is A bevel that acts on the tapered end of the bar to bring the outer end of the bar just flush with the cylinder.

In the improved solution to the above-mentioned anti-technical opening lock cylinder, there are two or more tapered grooves.

In an improved solution to the above-mentioned anti-technical opening lock cylinder, the pressure piece is arc-shaped, and a compression spring stop is provided on the side where it is in contact with the compression spring.

In the improved solution to the above-mentioned anti-technical opening lock cylinder, the lock cylinder and the lock shell are provided with two anti-drilling pin holes on the end close to the key insertion hole for respectively inserting anti-drilling pins. One of them is on the side of the main marble of the marble assembly, and the other is directly in front of the anti-technical opening marble, so that when the main marble of the marble assembly is drilled off, the anti-technical opening marble is still there. It can make the flat beads stick to the lock shell and the lock cylinder.

In the improved solution to the above-mentioned anti-technical opening lock cylinder, a steel ball hole for placing steel balls is opened on the end of the lock cylinder close to the key insertion hole, and the steel ball hole is in the same position as the horizontal grid hole. horizontal position.

Compared with the prior art, the beneficial effect of the present invention is: because the marble of at least one marble assembly is set to be made up of the main marble and the anti-technical opening marble that are connected together, on the anti-technical opening marble There is a tapered groove, and the tapered end of the horizontal grill slides into the tapered groove under the action of the compression spring through the anti-technical opening of the corresponding tapered groove and tapered end between the marble and the horizontal grid. When the door is locked, the horizontal grid can be hidden in the lock cylinder, or partly exposed in the horizontal grid slide-out slot of the lock shell. The pin also rotates slightly. At this time, either the outer end of the horizontal grid is exposed and stuck in the sliding slot of the horizontal grid, or under the action of the slope of the tapered groove, the inner and outer ends of the horizontal grid are respectively pressed against the slope of the tapered groove and the lock. On the inner wall of the shell, it is impossible to continue to turn the lock cylinder to open like this, thereby playing the purpose of anti-technical opening, so the structure of the present invention is more reasonable, and the anti-theft performance is stronger.

Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

【Description of drawings】

Fig. 1 is a three-dimensional schematic diagram of an embodiment of the present invention (after the key is inserted);

Fig. 2 is the assembly schematic diagram of the embodiment of the present invention;

Fig. 3 is a partially exploded schematic diagram of an embodiment of the present invention;

Fig. 4 is a schematic structural diagram of an embodiment of the present invention (locked state);

Fig. 5 is a schematic diagram of the structure of the second embodiment of the present invention (locked state);

Figure 6 is a state diagram of the embodiment of the present invention when the technology is turned on (when the tapered end of the horizontal grid slides into the tapered groove);

Fig. 7 is an enlarged view of part I of Fig. 6;

Fig. 8 is a state diagram of the embodiment of the present invention after the correct key is inserted.

【Detailed ways】

The present invention is an anti-technical opening lock cylinder, as shown in Figures 1, 2 and 3, comprising a lock case 1, a lock cylinder 2, several marble assemblies 3 arranged in the lock case 1 and the lock cylinder 2, the The pinball assembly 3 includes a plug 31, a ball spring 32, a flat ball 33 and a pinball 34. Here, at least one pinball 34 of the pinball assembly 3 is composed of a main pinball 341 and an anti-lock pin that are connected together. Technology opening pinball 342 is formed, and the pinball hole on the lock cylinder corresponding to main pinball 341 and anti-technical opening pinball 342 is also made up of interlinked main pinball hole 21 and anti-technique opening pinball hole 22, in said The anti-technology opening pinball 342 has a tapered groove 3421; on the lock cylinder, there is a horizontal strip hole 23 that communicates with all the anti-technology opening pinball holes 22, and a horizontal strip hole 23 is placed in the horizontal strip hole 23 Horizontal grid 4; arc-shaped pressing grooves 26 are respectively opened on the lock cylinder 2 located at both ends of the transverse strip hole 23; shoulders extending into the pressing groove 26 are provided on both sides of the horizontal grid 4 42. A pressure spring 6 and a pressure piece 5 are placed in the pressure piece groove 26; the two ends of the pressure spring 6 respectively act on the shoulder 42 of the horizontal grid 4 and the pressure piece 5; on the inner wall of the lock housing 1 There is a horizontal grid slide-out slot 11 opposite to the outer end of the horizontal grid 4 in the locked state; the inner end of the horizontal grid 4 is tapered, and the tapered end 41 of the horizontal grid 4 can slide into this In the tapered groove 3421; the elastic force of the stage clip 6 is smaller than the bead spring 32, and when the door is locked, the outer end of the horizontal grid 4 can be tangent to the outer diameter of the lock cylinder, as shown in Figure 4; preferably, As shown in Figure 5, when the door is locked, the outer end of the horizontal grid 4 slides out from the transverse strip hole 23 and enters the horizontal grid sliding slot 11 of the lock housing, so that when the key is pulled out of the locked door state, as shown in Figure 5, except that the flat ball falls between the lock shell and the lock cylinder so that the lock cylinder cannot rotate, because the elastic force of the compression spring 6 is smaller than the bead spring 32, after the pinball is reset like this, its anti-technical opening After the pinball 342 overcomes the action of the compression spring 6, the horizontal grid is pushed outwards so that the outer end of the horizontal grid slides into the sliding slot 11 of the horizontal grid, so that the horizontal grid 4 is stuck between the lock cylinder and the lock shell so that the lock cylinder cannot Rotate to achieve the purpose of locking the lock cylinder at the same time with the horizontal grid and the flat beads. When criminals use provocative or impact techniques to make the marbles go up and try to open them, they must turn a certain angle slightly. At that time, they thought that they could continue to turn the lock cylinder to open it according to their feel, so they increased the degree of rotation, and the horizontal grid rotated with the lock cylinder. When the horizontal grid slides to the outside of the lock cylinder, its outer end just abuts against the inner wall of the lock housing below the slot 11 where the horizontal grid of the lock housing 1 slides out, as shown in Figures 6 and 7, that is to say, the two ends of the horizontal grid are pushed against respectively. On the slope of the tapered groove 3421 and the inner wall of the lock housing, thereby limiting the continuous rotation of the lock cylinder, the purpose of technical opening cannot be achieved, that is, to prevent technical opening. When the correct key is inserted to make the tapered end 41 of the horizontal grid 4 slide down into the tapered groove 3421, the upper end surface of the main marble 341 is flush with the lock cylinder 2, so when the correct key is inserted, the marble rises to its main bullet. When the bead 341 is flush with the lock cylinder 2, the tapered end 41 of the horizontal grid 4 is just aligned with the tapered groove 3421 of the anti-technical opening marble 342, so the tapered end of the horizontal grid 4 under the action of the compression spring 6 41 slides into the tapered groove 3421 of the anti-technical opening pinball 342, and the outer end surface of the horizontal grid 4 is also located in the lock cylinder, as shown in Figure 8, that is to say the horizontal grid will not restrict the rotation of the lock cylinder, Then just can turn lock cylinder with key and come to open the door.

As can be seen from the above, the present invention sets the marbles 34 of at least one marble assembly 3 to be made up of a main marble 341 and an anti-technical opening marble 342 that are connected together, and an opening on the anti-technical opening marble 342. There is a tapered groove, and the tapered end of the horizontal grid slides into the tapered groove under the action of the compression spring 6 through the corresponding tapered groove and tapered end between the anti-technical opening pinball 342 and the horizontal grid , when the door is locked, the horizontal grid can be hidden in the lock cylinder, or partly exposed in the horizontal grid slide-out slot 11 of the lock shell 1. When the lawless person is technically opening, the lock cylinder must be rotated slightly. At this time The pins in the lock cylinder are also rotated slightly. At this time, either the outer end of the horizontal grid is exposed and stuck in the sliding slot 11 of the horizontal grid, or the inner and outer ends of the horizontal grid are respectively pushed against the tapered groove under the action of the slope of the tapered groove. The slope of 3421 and the inner wall of the lock case cannot continue to turn the lock cylinder to open, so as to prevent technical opening. Therefore, the structure of the present invention is more reasonable and the anti-theft performance is stronger.

Preferably, the marbles 34 of the two marble assemblies 3 are all made up of the main marble 341 and the anti-technical opening marble 342 that are connected together, and when the door is locked, the anti-technical opening of one of the marbles is The upper end of the marble 342 is a right-angled surface 3422 that can push the horizontal grid out so that its outer end can be inserted into the sliding slot 11 of the horizontal grid, as shown in Figure 5; The part is the inclined surface 3423 that can act on the tapered end of the horizontal grid to make the outer end of the horizontal grid just flush with the lock cylinder, as shown in Figure 4, so that when the technology is opened, the two marble components can play a complementary role Function, that is, when criminals stir up the two marble components to open it technically, when one of the marbles rises to the outer end of the corresponding section of the horizontal grid, it is just flush with the lock cylinder, and the other marble corresponds to The outer end of that section of the horizontal grid then inserts the horizontal grid of the lock housing and slides out of the slot 11, so that the lock cylinder cannot be rotated to unlock when the technology is opened, that is to say, the horizontal grid always has at least a part of the outside when the technology is opened. end will be inserted into the rail slide out slot 11.

There are two or more tapered grooves 3421 on the same anti-technical opening marble 342, and only one of them satisfies that when the tapered end 41 of the horizontal grid 4 slides into this tapered groove, the upper end surface of the main marble 341 is just in line with the lock. The barrel is flush, this tapered groove is a functional groove to prevent technical opening, and the rest of the tapered grooves are false functional grooves, so that when criminals use provocative technology to open it, the lock barrel is turned while raising the marble, and when the tapered end When sliding into the false function slot to produce a more obvious feel, the thief thinks that the provocation is successful, so he continues to turn the lock cylinder, but because the upper end of the main marble is not flush with the lock cylinder at this time, he cannot continue to turn the lock cylinder to open , It further plays the anti-theft effect of the anti-challenging technology.

Here, the pressure piece 5 is arc-shaped, and a compression spring stop 51 is provided on the side where it is in contact with the compression spring, so as to better position the compression spring so as not to affect the horizontal grid due to uneven force. The stage spring bounces away after sliding or being compressed.

In this embodiment, as shown in Figures 1, 2, and 3, the lock cylinder and the lock housing are provided with two anti-drilling pin holes for respectively inserting anti-drilling pins 7 on the end close to the key insertion hole. 12, 24, one of them is on the side of the main marble 341 of the marble assembly, and the other is directly in front of the anti-technology opening marble 342, so that even when the main marble 341 of the marble assembly is When drilled out, the anti-technical opening pinball 342 can still support the flat ball so that it still blocks the lock shell and the lock cylinder, because the anti-technical opening pinball 342 prevents the upper part of the main pinball from falling off and cannot rotate The lock cylinder is used to open, thereby improving the anti-theft effect of anti-drilling and opening. Equally, in order to prevent criminals from using an electric drill to attempt to destroy the horizontal grid, the lock cylinder has a steel ball hole 25 for placing steel balls 8 on the end close to the key insertion hole, and the steel ball hole 25 is connected to the horizontal grid. Grid hole 23 is in the same horizontal position, and when lawbreaker attempts to destroy horizontal grid with electric drill, steel ball 8 must make drill bit deviation. After steel ball 8 is packed into steel ball hole 25, block with sealing cap again, in order to avoid falling.

Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art through this disclosure that the present invention can be modified without departing from the principle and spirit scope of the present invention defined by the claims. various changes or modifications. Therefore, the detailed description of the embodiments of the present disclosure is only for explanation, not for limiting the present invention, but the content of the claims defines the scope of protection.

Claims (6)

1. a Lock capable of preventing from being opened by master key core, include lock housing (1), lock gall (2), several hoodle assemblies (3) be located in lock housing (1) and lock gall (2), described hoodle assembly (3) includes plug (31), pearl spring (32), flat pearl (33) and hoodle (34), it is characterized in that having at least onethe hoodle (34) of individual hoodle assembly (3) is made up of the main hoodle (341) be connected and anti-technical opening hoodle (342), hoodle hole on the lock gall of the main hoodle of correspondence (341) and anti-technical opening hoodle (342) is also made up of the main hoodle hole (21) communicated and anti-technical opening hoodle hole (22), and described anti-technical opening hoodle (342) has cone tank (3421); Described lock gall has the horizontal bar hole (23) all communicated with whole anti-technical opening hoodle hole (22), in this horizontal bar hole (23), is placed with horizontal grid (4); The lock gall (2) being positioned at these horizontal bar hole (23) two ends has compressing tablet groove (26); Be provided with in described horizontal grid (4) both sides the convex shoulder (42) extended in this compressing tablet groove (26), in described compressing tablet groove (26), be placed with stage clip (6) and compressing tablet (5); On the convex shoulder (42) that described stage clip (6) two ends act on horizontal grid (4) respectively and compressing tablet (5); Described lock housing (1) inwall has the horizontal grid relative with horizontal grid (4) outer end under the state of locking a door and skids off slot (11); Described horizontal grid (4) inner end is tapered, and the tapering point (41) of described horizontal grid (4) can slide in this cone tank (3421); The elasticity rate pearl spring (32) of described stage clip (6) is little; When inserting correct key and making the tapering point of horizontal grid (4) (41) be slipped in cone tank (3421), the upper surface of this main hoodle (341) is concordant with lock gall (2).

2. a kind of Lock capable of preventing from being opened by master key core according to claim 1, is characterized in that, has at least the hoodle of two hoodle assemblies 3 (34) to be all made up of the main hoodle (341) be connected and anti-technical opening hoodle (342); When locking a door state, wherein the upper end of the anti-technical opening hoodle (342) of at least one hoodle horizontal grid can be released make its outer end be inserted into horizontal grid to skid off right-angle surface (3422) in slot (11); The upper end of the anti-technical opening hoodle (342) of all the other hoodles be can act on horizontal grid tapering point to the inclined-plane (3423) making horizontal grid outer end just concordant with lock gall.

3. a kind of Lock capable of preventing from being opened by master key core according to claim 1 and 2, is characterized in that, described cone tank (3421) has two or more.

4. a kind of Lock capable of preventing from being opened by master key core according to claim 3, is characterized in that, described compressing tablet (5) is curved, and is provided with stage clip gear (51) on that side that it contacts with stage clip.

5. a kind of Lock capable of preventing from being opened by master key core according to claim 4, it is characterized in that, described lock gall and lock housing have anti-drilling pin-and-hole (12), (24) that two are used for inserting respectively anti-drill pin (7) on that one end being close to key insertion hole, one in them side at the main hoodle (341) of this hoodle assembly, another root in the dead ahead of anti-technical opening hoodle (342), make the main hoodle (341) when hoodle assembly drilled fall time anti-technical opening hoodle (342) flat pearl can also be made to block lock housing and lock gall.

6. a kind of Lock capable of preventing from being opened by master key core according to claim 5, it is characterized in that, described lock gall (2) has the steel ball hole (25) for placing steel ball (8) on that one end being close to key insertion hole, and described steel ball hole (25) and described horizontal gate hole (23) are in same level position.