WO2005068755A1

WO2005068755A1 - A lock body structure preventing wringing a lock cylinder and an installation method thereof

Info

Publication number: WO2005068755A1
Application number: PCT/CN2004/001124
Authority: WO
Inventors: Caidong Qin
Original assignee: Caidong Qin
Priority date: 2004-01-07
Filing date: 2004-09-29
Publication date: 2005-07-28

Abstract

A lock body structure preventing wringing lock cylinder and an installation method thereof, comprising: a pushlock head (1) arranged in mounting hole (2); a false fixation is provided between the pushlock head (1) and the mounting hole (2), the joint strength of which is between the torque force of a key when the lock is normally opened and the torque force of the lock cylinder when it is wrung to be broken. When the lock is normally opened with the key, the pushlock head (1) is fixed relative to the mounting hole (2), but when the lock body is wrung, the pushlock head (1) rotates freely relative to the mounting hole (2). The present invention can thoroughly resolve the question that the lock cylinder is damaged by reamer type tools so that the lock would be unlocked illegally, so locking is more practical and reliable.

Description

Lock body structure and installation method capable of preventing lock core from being twisted

The invention relates to a lock, and in particular to a lock body structure and an installation method capable of preventing the lock core from being twisted. Background technique

The existing mechanical locks (such as various types of door locks, vehicle anti-theft locks, electric door locks, etc.) have two major defects. First, the keyhole of the lock cylinder is exposed, so that the core part of the lock, such as the lock cylinder, will directly face the violence of the violent tool, and it is easy to be broken by the electric drill or reamer ¾ to insert the keyhole to break the lock cylinder, or to be broken Pry open or open by technical operations such as wire, sheet tools. Secondly, the lock body and the installation hole are completely fixed during installation, and it is easy to be inserted into the keyhole by a reamer, screwdriver and other tools to twist the lock core and achieve illegal opening. The exposed keyhole provides enough convenient and spacious operating space for the illegal unlocker, while the lock body and the lock hole are fixed, which will provide a stable force application point when the illegal unlocker is twisted, preventing poor opening performance. Based on these two major deficiencies, a variety of improved lock body structures have emerged for each of the deficiencies.

Earlier, there appeared a lock body structure that hides the keyhole. For example, an anti-theft lock device disclosed in Chinese Patent No. 03203750. 3, as shown in FIG. 1, in an embodiment, a cover (box) outside the keyhole 60 is provided with a through slot 61 through which a key 30 can be inserted. 30 has a handle 31, a head 32, and an insertion end 33 and is L-shaped. The keyhole 60 is parallel to the cover. When unlocking, the key 30 can be unlocked by inserting it through the insertion hole 61 and inserting the keyhole. The lock body can hide the keyhole 60, which makes the large-scale violent tools restricted by the operating space during the twisting, which increases the difficulty of unlocking, and prevents the violent tools from drilling or inserting the keyholes and twisting the lock core to a certain extent. Illegal unlocking; on the other hand, because the keyhole is not directly facing the illegal unlocker, it is not easy to be found. Even if it is found by the illegal unlocker, the cover must be destroyed before the lock body can be destroyed, which increases the complexity of illegal unlocking and prevents theft. Performance has improved. However, because the main principle of the lock body is to hide the lock body under a cover, an illegal unlocker can still destroy the cover first and then the lock body. The protection function is not ideal. More importantly, the lock body has only taken measures to expose the keyhole. The lock body and the mounting hole are still fixed. Although it can prevent the large reamer from twisting the lock core to a certain extent, it cannot prevent the small reamer. The screwdriver, especially the small L-shaped reamer, is inserted into the keyhole to twist the lock core and achieve illegal opening.

Other keyhole structures, such as Chinese patents 94246161 and 96233262, are similar to the previous solution. The keyhole is hidden in the door body, and the keyhole is located inside the door body and parallel to the door panel. A human hand reached into the unlocked opening. These two solutions can also hide the keyhole, to a certain extent, prevent large reamer from twisting the lock core, but because its opening is large enough, an open space has basically been formed, and the lock body and the lock point are completely fixed. Small reamer and screwdriver can be entered through the opening and inserted into the keyhole to twist the lock core to achieve illegal opening, and the anti-damage performance is not good. There is a hidden body that hides the lock body inside the sleeve. Hidden keyhole solutions, such as U.S. patent 4,854,585 and Chinese patent 02232417, disclose such lock body structures. The lock body is provided with a large opening on the sleeve for human hands or keys to insert the lock, and the lock body and the lock point are fixed. Similarly, it cannot prevent small reamer and screwdriver from entering through the opening and twist the lock core to achieve illegal opening. As for other schemes to hide keyholes, they will not be detailed.

In order to solve the defects brought by the locking of the lock body and the mounting hole, a lock body structure capable of freely rotating the lock core has appeared, such as the Chinese patent 99246767 patent case, which allows the lock core to rotate freely on the basis of the conventional lock structure, although This solution can solve the damage of reamer tools, but the keyhole is still exposed, and the structure requires the removal and installation of the lock head each time it is locked and opened, which is very difficult to operate and difficult to use. As another example, Chinese patent 03232225 proposes a structure in which the lock core can be idled by changing the structure of the lock core, but the improvement of this type of lock core complicates the structure, and the internal structure is easily damaged or deformed by lateral forces. It is difficult for the lock cylinder to have the ability of idling protection, and the keyhole is still exposed, the effect is not ideal.

In summary of the previous solutions, in terms of improving the defects of the lock body, the two defects of the exposed keyhole and the fixation of the lock body and the lock point have not been comprehensively improved. Either the keyhole is hidden, but the lock body and the lock point are fixed; or the lock body It can be rotated relative to the lock point, but the keyhole is still exposed, and both cannot be taken into account.

Of all the previous solutions, the keyhole concealment scheme can prevent large-scale violent tools from directly damaging the lock core to a certain extent, but it does not completely solve the problem of violent shackles, especially small reamer tools (such as L-shaped or with A small reamer with a similar shape of the key) can enter the keyhole to break the lock and unlock the lock. In the scheme where the lock core and the keyhole can be idled, either the operation is very complicated or the lock body structure is very complicated, and the lock cannot be easily implemented. Core anti-twist function. For a long time, the important issue of twisting the lock cylinder has been ignored by the industry, and no related products have been used in practical applications. For locks, this problem is the essential difference between locks being ineffective, and the problem of reamer damage to lock cores, such as media reports, is the main method used by many thieves in actual theft, and it is urgent to improve the industry.

Another disadvantage of all the foregoing solutions is that the installation of the lock head needs to cooperate with the locked object such as the door panel used to place the lock or a specific anti-theft lock in order to form a locking device for a door or other use, which makes the manufacture of the lock body and The application field is restricted by the structure and design of the object to be locked, and it also brings great troubles to the installation of the lock body, and the above lock bodies cannot form a lock device that is easy to manufacture and independent and universal, and cannot be widely used simply and conveniently. Various locked areas. Summary of the invention

The technical problem to be solved by the present invention is to provide a lock body structure and an installation method capable of preventing the lock core from being twisted, which can completely solve the illegal lock caused by violent tools such as large and small reamer tools or the lock core. Open the question, the lock is more practical and reliable. Another technical problem to be solved by the present invention is to provide a lock body structure capable of preventing the lock core from being twisted. The lock body is easy to manufacture and can be made into an independent universal lock. Can protect the lock cylinder.

Yet another technical problem to be solved by the present invention is to provide a lock body structure that prevents the lock core from being twisted, which can increase the difficulty of illegal unlocking and better anti-theft performance.

The technical solution of the present invention is: a lock body structure capable of preventing the lock core from being twisted, including an overlock lock provided in the installation cavity; the overlock lock and the installation cavity are falsely fixed, and the falsely fixed The connection strength is between the torsional force of the key when the key is normally opened and the torsional force of the lock core being twisted.

In the prior art, there is a solution that uses a tongue lock and conceals the keyhole, and if the lock body is idling, it is equivalent to the opening of the lock. Therefore, the entire lock body cannot be considered in the prior art solution. Solve the problem of anti-twisting of the lock cylinder, thereby forming the industry habit and technical bias of fixing the lock head in a fixed manner. The top lock lock and the mounting hole of the present invention adopt a false fixed connection form. Under the violent twisting of the lock body, the top lock lock can be idle-protected relative to the mounting hole, so that the force that destroys the lock is completely released. It can't act on the lock, make the destroyer powerless, and produce a technical effect that was not thought of by the predecessors. It overcomes the technical prejudice that the lock and the mounting hole should be completely fixed in the existing lock body design and installation field. It also changed the industry design habit of making the lock cylinder idling by hiding the keyhole and changing the structure of the lock cylinder under the premise that the lock body and the mounting hole are fixed. Technical problems with poor anti-twist performance.

The invention realizes weak pseudo-fixation by making the top lock lock head and the mounting hole weak. Once the lock core is twisted by a violent tool, the stator part of the lock head and the mounting hole are pseudo-fixed, which allows the lock rotor ( The lock core part) and the stator part are connected and rotated at the same time through the bullets in the lock core. The lock head has the function of protective idling, so that the force that destroys the lock head can be fully released without acting on the lock head, making various large and small Reamer tools cannot twist the lock core and open it, so that the lock core can be fundamentally protected, it can fundamentally prevent the lock core from being twisted, and completely solve the problem of theft. When the key is normally opened, the lock core rotor Part can be rotated, while the stator part is still relatively fixed with the lock mounting hole, which will not affect the normal unlocking.

The push lock disclosed in the present invention (pushlock, Chinese can be referred to as a press lock) is an existing lock body structure, which is locked or opened by the lock tongue moving in or out along the lock core axially, which is different from a common lock or a turn lock The rotation of the top lock body, that is, the simultaneous rotation of the rotor and the stator, does not affect the locking or opening of the locked object.

Specifically, an example of the pseudo-fixing method used for the lock body structure of the present invention is as follows. First, the tensioning connection on the peripheral surface that matches the top lock lock with the installation hole is used, and the friction generated by the tensioning connection is used to achieve falseness. fixed. Tightening can be achieved by placing tensioning materials such as rubber holsters, plastic sleeves, metal foils or elastomers on the mating surface between the top lock lock and the mounting cavity, but it is not limited to the mentioned materials It is obvious that other materials that can be used for tightening and fixing can be used. Obviously, instead of using the tightening material, the transition and interference fit between the top lock lock and the mounting cavity can be directly implemented, and false fixing can also be achieved.

Second, it adopts axial limit tightening connection, which can be tightened by rubber tightening materials such as rubber holsters, plastic sleeves, metal foils or elastomers on the inner or outer end face of the top lock lock with the fitting part of the mounting cavity. Either step or clamping spring limit tightening; or do not use the tightening material, but directly from the inner or outer end of the top lock lock with the matching part of the lock body mounting cavity, of course, this solution requires the installation cavity The outer end provides a forceful support point for the top lock head.

Third, the form of adhesive bonding is adopted, and the adhesive can be provided on the peripheral surface or one end surface of the top lock lock and the installation hole, or on both the peripheral surface and the end surface. As long as the two can be relatively fixed, there is no limitation on the specific place where the adhesive is bonded or the number of bonding points, and the bonding strength should not be less than the torsional force generated by the key normally opening the lock body to ensure the normal use of the lock body.

Fourth, use elastic telescopic pins or easily broken pins to connect. Elastic telescopic studs or easily broken studs can be provided along the lock core in the radial direction and at least one; or in the axial direction on the end surface between the top lock head and the mounting cavity, preferably two. Among them, the easily breakable pin is easier to break or break than the ball in the lock core under the action of violent twisting action; the elastic telescopic pin is retracted under the action of torque to enable the lock to rotate more freely.

It should be noted that the present invention mainly changes the conventional design ideas in the field of locks, overcomes the technical prejudice that people have always thought that locks and mounting holes should be fixed, and adopts a weaker pseudo It is fixed to achieve the purpose of anti-theft. Therefore, as long as a false fixing is used between the lock and the mounting hole, the strength is between the torsion force of the normal key and the lock body and the torsion force of the lock core. The scope of protection of the invention is not limited to the aforementioned several types of pseudo-fixation. In the prior art, other schemes that can achieve pseudo-fixation can be adopted completely and should belong to the protection scope of the present invention.

Preferably, the overlock lock head is disposed in an additional lock body, the additional lock body is provided with a mounting hole and realizes the pseudo fixing with the overlock lock head, and the additional lock body is opposite to the overlock lock keyhole There is an opening for key insertion.

With the additional lock body, on the one hand, the keyhole is not exposed, and the lock core and related structures are hidden to the maximum. Because the opening of the additional lock body only allows the key to enter and unlock for unlocking, it plays a role of space constraint and can prevent small violence tools Inserting the keyhole through this opening achieves the purpose of reducing the violent destruction of thieves or technical unlocking operation space, and has a double protection effect on the lock core; more importantly, the additional lock body and the lock head of the present invention can be formed into an integrated lock. As the final product or accessory product, the present invention can be made into an independent and universal lock. The finished products of each type of lock of the present invention can be directly installed at the corresponding reserved positions of the locked object, which can completely eliminate the need for each lock. Repeated design of locks, installation work, etc., have good general performance and can be widely used in a variety of situations.

Preferably, a blocking structure is provided outside the keyhole to further increase the difficulty of technical unlocking. Correct There are also various implementation structures for this blocking structure, examples are as follows:

1. The blocking structure may be a trumpet-shaped baffle or an elastic sheet or an elastic wire distributed in a radial direction. Further, a second locking device is provided on the outer side of the horn-shaped baffle. The second locking device controls whether the horn-shaped baffle stays in front of the keyhole, so that the lock body and the mounting hole can be idled, the keyhole can be hidden, and the device can be set. Multiple protections provided by the barrier structure. In general anti-theft situations, such as using a keyhole to hide and block the structure, you can also use a permanent pin to fix the connection between the lock and the mounting hole.

2. The blocking structure is a push rod that is installed in front of the keyhole and can slide freely or at the same time. The tail or side of the push rod pushes the lock cylinder into the top lock directly or indirectly (through other small objects) by the hand. A convenient locking operation is realized in the lock head. A through slot and a key opening are formed at the corresponding positions of the push rod and the additional lock body, so that the key can enter the keyhole through the push rod body. The push rod as a sliding body can play a role of concealing and protecting the keyhole, further increasing the difficulty of technical unlocking and violent destruction of the lock body.

3. The blocking structure is a third independent lock on the outside of the top lock lock. Only when the third independent lock is opened, the key can reach the keyhole, and the lock body can play a third protection function.

The lock structure of the foregoing aspects of the present invention can be applied to anti-theft doors or roller shutter doors or safe doors or automobile doors, etc .; or to U-shaped locks or chain locks or padlocks or disc locks or automobile steering wheel locks or gear locks, etc. ; Or applied to the lock of a bicycle or tricycle or electric bicycle or motorcycle's faucet or car rotating shaft or electric door part or the steering wheel of a car, and the lock body and the locked vehicle are integrated into a whole. As long as the solution of the present invention is adopted, other applications not mentioned should also belong to the protection scope of the present invention.

The invention also provides a lock body installation method capable of preventing the lock core from being twisted. The top lock lock head and the installation hole are provided with a false fixed connection, and the strength of the false fixed connection is between that of the key and the normal opening of the lock. Between the torsional force of the body and the twisting force of the lock cylinder being twisted. When the key is normally opened by the key, the top lock lock is relatively fixed to the installation hole, and the violent twisting action of the lock body can cause the top lock lock to idle relative to the installation hole. It can fundamentally prevent reamer tools from damaging the lock core, and has excellent anti-theft performance. BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 shows the structure of a conventional lock body.

FIG. 2 is a schematic structural diagram of an embodiment of the present invention using a tightening connection.

FIG. 2A is a schematic diagram of a force distribution range of a pseudo-connection strength according to the present invention.

FIG. 3 is a schematic structural view of an embodiment of the present invention using a tensioning, axially pressing, and elastic telescopic pin connection.

FIG. 4 is a schematic diagram of an embodiment of the present invention using adhesive bonding.

FIG. 5 is a schematic diagram of an embodiment in which a stopper portion is installed in the present invention. FIG. 6 is a schematic diagram of Embodiment 2 of the present invention.

FIG. 7 is a schematic diagram of the key direction of the additional lock body opening in front of the keyhole obliquely in Embodiment 2 of the present invention. FIG. 8 is a schematic diagram of the key direction of the additional lock body opening in front of the keyhole obliquely in Embodiment 2 of the present invention. FIG. 9 is a schematic structural diagram of a blocking structure as a push rod in Embodiment 2 of the present invention.

Fig. 10 is a cross-sectional view taken along the line A-A in Fig. 9.

FIG. 11 is a schematic structural diagram of an electronic alarm device according to Embodiment 3 of the present invention.

FIG. 12 is a schematic structural diagram of an indirect locking tongue according to Embodiment 4 of the present invention.

FIG. 13 is a schematic structural diagram of a lock body used for door theft prevention in Embodiment 5 of the present invention.

FIG. 14 is a schematic structural view of a lock body used for anti-theft of a rolling door in Embodiment 5 of the present invention.

FIG. 15 is a schematic structural diagram of a lock body used in a U-shaped lock in Embodiment 6 of the present invention.

FIG. 16 is another schematic structural diagram of a lock body used for a U-shaped lock in Embodiment 6 of the present invention.

FIG. 17 is a schematic diagram of a lock body used in a U-shaped lock and having an electronic alarm device in Embodiment 6 of the present invention. FIG. 18 is a schematic structural diagram of applying a lock body to a chain lock according to Embodiment 6 of the present invention.

FIG. 19 is a schematic structural diagram of applying a lock body to a disc lock according to Embodiment 6 of the present invention.

20 is a schematic structural diagram of a lock body applied to a vehicle according to Embodiment 7 of the present invention.

21 to 24 are schematic diagrams of a method for installing a lock body according to the present invention. detailed description

Example 1

As shown in FIG. 2, the lock body structure of the present invention includes a top lock lock 1 (pushlock, Chinese can be referred to as a press lock) provided in an installation hole 2, and the installation hole 2 is surrounded by a side wall 21 and a lock tongue 11 Insert into the lock hole of the locked object (not shown) for locking. The top lock 1 and the mounting hole 2 are pseudo-fixed. The strength of the pseudo-fixation is weak, which lies between the key's normal opening of the lock body. Between the torsional force at the time and the twisting force of the lock cylinder being twisted. Referring to FIG. 2A, the torsion force of the lock body normally opened by the key is within the normal torsion force range T1 to T2, and the lock core of the lock body 1 also has a torsion or twist resistance range T3 to T4. Sex can be fixed between these two ranges. Optimally, the strength T of the false fixation is between the maximum torsional force T2 that can be normally generated by the key when the lock body is unlocked, and the minimum torsional force T3 of the lock core. Between this range, the lock body performance is the most stable; of course The connection strength T may also be between T1 and T4; or between T2 and T4; or between T1 and T3. The false fixation can be simply implemented as a tightening connection between the top surface of the lock 1 and the mounting cavity 2 on the peripheral surface. The frictional force generated by the tightening effect is used to achieve the false fixation, and the frictional torque should not be less than The torsional moment generated by the key normally opening the lock body 1. Tightening can be achieved by a rubber holster, plastic sleeve, metal foil or elastomer, etc. 34 sets placed on the mating surface between the top lock lock 1 and the mounting cavity 2; of course, the top lock lock can also be directly used 1 and Ann The transition between the acupuncture points 2 and the interference fit achieve false fixation. When the key is unlocked normally by the false fixing of the present invention, the top lock lock 1 and the installation hole 2 are relatively fixed, and the top lock lock 1 can be relatively installed under the action of the lock body being twisted by the illegal external force 13 The hole 2 is idling, and the lock core cannot be twisted, and the lock body cannot be opened, which can completely solve the problem of anti-twist and anti-theft of the existing locks.

As shown in Fig. 3, this false fixation can also adopt the axial limit tightening connection. The friction force generated by the axial tightening force on the end face should not be less than the torsional moment generated by the key normally opening the lock body. It can cooperate with the outer end of the mounting hole 2 to provide a force support point for the top lock lock 1. The inner surface 10 of the top lock lock 1 and the mounting hole are made of a tightening material 35 such as a rubber holster, a plastic cover, a metal foil or an elastomer. The mating parts of 2 are tightened, and the outer end surface 12 and the mounting wall 2 side wall 21 can also be tightened. Preferably, a stop 22 is provided on the outer end of the mounting cavity 2 to prevent the top lock lock 1 from being pulled out by external force, or to tightly connect with the outer end surface 12 of the top lock lock 1; the stop 22 It can be integrally formed with the side wall 21, as shown in FIG. 3; or the stopper portion 22 and the side wall 21 can be detachably connected by adhesion, screwing, tight fitting, etc., as shown in FIGS. 4, 5 for easy installation Lock head 1. As shown in FIG. 6, the axial tightening can also be tightened by a step or a clamping spring 40 to prevent the top lock 1 from moving in the axial direction.

As shown in FIG. 4, false fixation can also be achieved by bonding the adhesive 36. The adhesive 36 can be provided on the peripheral surface of the top lock lock 1 and the installation cavity 2, or only on the matching surface of the two. The inner or outer end surface can also be set on the peripheral surface and the end surface at the same time.

As shown in FIG. 5, the false fixing can also be achieved by a plastic stud or a easily broken stud 37. The strength of the stud 37 is less than that of an equivalent stud made of the marble material in the lock core. In FIG. 5, Two end positions are set. When the lock core is forced to rotate by external force, the plastic stud or the easily broken stud 37 is broken before the lock core is destroyed, so that the lock is protected from idling. For example, when the stud 37 has a non-cylindrical outer peripheral surface Alternatively, only one can be provided along the axial direction of the end surface. When the lock core is twisted by external force, the shearing force will destroy the non-cylindrical outer peripheral surface and make it smooth, so that the lock body 1 will idle. Obviously, the pin 37 may also be disposed radially between the lock head 1 and the mounting hole 2, and only one post may be provided. The stud 37 can also be replaced by an elastic telescopic stud 38. As shown in FIG. 3, when the lock core is twisted by an external force, the elastic telescopic stud 38 is elastically retracted to make the lock 1 idle.

Further improvement, the outer surface (inner end surface 10 or outer end surface 12 or outer peripheral surface) of the top lock lock 1 is provided with a small convex portion for increasing friction, so as to achieve the strength required for false fixing, and no longer provides a drawing . Example 2

Referring to FIG. 6, this embodiment is based on Embodiment 1, and the mounting holes are set in ~ additional lock bodies 4. The additional lock body 4 is provided with a through hole 43 for the tongue 11 to enter and exit and an opening for the key to be inserted. 42. The top lock lock 1 is set in the mounting hole 41 of the additional lock body 4, and a false fixation is achieved between the mounting hole 41 and the top lock lock 1. A circular tube-shaped step (or a rectangular step) is used in the figure. Or a step formed by an inner card) 40 achieves the axial top tight connection. Of course, elastic telescopic pins 38 can also be used to achieve false fixation. The additional lock body 4 may be composed of a thin plate with a long mounting hole, or a leather sleeve. Its material may be selected from metal, polymer, wood or tempered glass, etc. The lock body can better protect the lock core inside. The shape of the additional lock body 4 can be cylindrical or square cylindrical or any other suitable shape to suit different applications. The end can be closed to further increase the concealment of the lock head 1. Of course, the additional lock body 4 can also open one or both ends to facilitate the installation of the lock body, as shown in FIG. 11.

In addition, the mounting hole in which the top lock head is installed as a whole can be further set in an additional lock body, and the two mounting holes can be connected in a completely fixed or pseudo-fixed manner, and one more can be added. Layer protection, no longer provide schema.

As shown in FIG. 6, an opening 42 for key insertion is provided on the side of the additional lock body 4 opposite to the keyhole 13 of the top lock head 1; the plane where the opening 42 is located is not parallel to the end face where the keyhole 13 is located Preferably, the plane of the opening is perpendicular to the end face of the key cylinder keyhole or at a large acute angle, but it is preferably perpendicular, and the opening 42 on the additional lock body is in front of the keyhole 13 obliquely.

The opening 42 is preferably in the shape of a thin strip to make it easy for the key to enter the additional lock body 4 and to minimize the open space of the lock core 13 as far as possible. The opening 42 may be in the shape of a letter (as shown in FIG. 11). As shown in FIG. 7, the lock cylinder should adopt a top lock cylinder 1 structure in which the key 5 is inserted into the keyhole 13 and opened slightly. The key 5 can be L-shaped, and has key teeth 51, key handle 52 and key handle 53, To facilitate the opening of the lock, the key 5 must follow the direction shown in the figure when opening the lock core. In addition, the opening 42 can be L-shaped as shown in FIG. 6, and the long end portion of the L-shaped opening allows the key 5 to enter the additional lock smoothly. The other end of the body 4 enables the L-shaped key 5 inserted into the keyhole 13 to rotate at an angle to open the lock cylinder. Of course, as shown in FIG. 16, the opening 42 may also be an L-shape with an arc at one end. As long as the key is easy to insert, it is not limited to the mentioned opening form.

Of course, the opening 42 can also be tilted in front of the keyhole 13. At this time, when the key 5 opens the lock body, it must follow the direction shown in FIG. 8 to enter the keyhole 13, and the best shape of the key 5 is a three-dimensional double L shape. That is, the two L-shapes are not on the same plane, and have additional shanks 521.

When unlocking, as shown in FIG. 6, the L-shaped key is inserted into the keyhole 13 of the lock cylinder along the lateral opening portion of the L-shaped opening 42, and the handle portion 53 of the key 5 turns and enters the longitudinal opening of the L-shaped opening 42, resulting in a top lock lock. The core 13 enters an openable state. When the key handle 53 is rotated to return to the lateral opening of the L-shaped opening 42, the top lock cylinder 1 and the key 5 are completely removed from the lock housing (the stator portion of the lock cylinder) by the internal spring 14. Return to the unlocked state and the key 5 can be removed from the lateral opening.

In this embodiment, the keyhole 13 is not exposed, which can play a role of space restriction, can prevent small violent tools from inserting the keyhole 13 through the opening 42 to destroy the lock core, and has a dual protection effect on the lock body 1, even if The small reamer can be inserted into the keyhole 13, and the mounting hole 41 of the lock 1 and the additional lock body 4 is not completely fixed. When the keyhole 13 is twisted by a reamer tool, the lock 1 can be inserted in the additional lock. Sliding and idling in the body 4 fundamentally protects the lock core in the lock 1 from being damaged. In addition, the additional lock body 4 and the top lock head 1 can be formed as an integrated lock, which is easy to manufacture and has good universal performance.

As shown in FIG. 6, in order to further increase the difficulty of technical unlocking, a blocking structure is also provided in front of the keyhole 13 in the additional lock body 4. For example, if it is a trumpet-shaped elastic piece or baffle plate 54, further, the elastic piece or baffle plate 54 is controlled by another second locking device to stay in front of the keyhole 13 so as to provide the third protection for the lock body 1. , The illustration is omitted.

As shown in Figs. 9 and 10, the blocking structure may also be a push rod 6 that can be slidably installed in front of the keyhole 13, and the tail or side of the push rod 6 is pushed by a hand or passes other objects (such as a key). The lock cylinder is pushed into the top lock head 1 to achieve a convenient locking operation. The push lever 6 is provided with a key opening 61 and a through slot 62 through which the key passes, so that the key can enter the keyhole 13 through the push lever 6. A positioning post pin 63 is provided on the push rod 6 to restrict it from sliding only in the axial direction in the additional lock body 4. The positioning post pin 63 can also be removed to allow the push rod to slide and rotate freely at the same time. The shape of the key opening 61 on the push rod 6 may correspond to the shape of the key, such as a round hole shape, a long stripe shape, a cross shape, and the like. The push rod 6 as a sliding body and a rotating body can play a role of concealing and protecting the buttonhole, further increasing the difficulty of technical unlocking and violently destroying the lock cylinder.

The blocking structure can also be a third independent lock on the outside of the top lock head, which can play the third important protection function on the lock body, and the drawings are omitted.

Preferably, in order to prevent rainwater or dust from entering the additional lock body 4 through the opening 42, an outer shell body that can freely rotate and slide may be installed on the outer shell of the additional lock body 4, in order to allow the key to enter the keyhole through the outer shell body, The outer body is provided with an outer opening at a position corresponding to the opening 42 of the additional lock body 4 (not shown). Example 3

Referring to FIG. 11, the principle and effect are completely the same as those in Embodiment 2, and will not be described again. The improvement lies in that: an electronic alarm device 7 is further installed in the additional lock body 4, and a switch 71 thereof is connected through a wire 72. The power switch 71 of the electronic alarm device 7 is similar to the bimetal and is triggered by the movement of the position of the lock tongue 11 to further increase the alarm prompt function. Example 4

Referring to FIG. 12, the principle and effect of this embodiment are basically the same as the foregoing embodiment, and will not be described again. The difference is that, in order to reduce the lock head 1 and the tongue 11 from being directly affected by external forces, an indirect tongue recoil 15 is installed before the tongue 11. In the unlocked state, the indirect tongue 151 is under the action of the spring 152. Return to the indirect tongue rear seat 15 and the connected tongue 11 is retracted into the lock housing of the lock head 1 to reach the open position. In the locked state, the tongue 11 is pushed out, and the pushed tongue 11 pushes the indirect The lock tongue 151 enters the lock hole of the lock tongue to achieve the purpose of locking, which can ensure that the lock head 1 and the lock core inside it are not easily damaged. Example 5

Referring to FIG. 13, the above-mentioned structure of the present invention is applied as a locking unit to a security door or a safe door, etc., as a door lock. It is installed in position A shown in Figure 13. The entire lock body can be inserted into it perpendicularly to the door edge, and fixed by a stern bar or a pin. The inlay of the door is cut in advance. The part of the lock body with the bolt lock hole or the door frame with the bolt lock hole is not shown in the illustration. The opening 42 is completely transparent, so that it can be opened and locked both indoors and outdoors; however, in order to protect the privacy of the room, a movable baffle can be provided in the opening portion of the room. When used for a safe door or a car door, the opening 42 may not be completely transparent. As shown in position B in FIG. 13, the entire lock body can also be installed in parallel with the door rim, and adopts an indirect lock tongue structure. The indirect lock tongue 151 plays a locking role, and the wedge-shaped lock tongue 11 drives the indirect lock through a bow-like structure. The tongue 151 is opened to ensure that the lock head 1 and the lock core therein are not easily damaged.

As shown in FIG. 14, the lock structure of the present invention may also be provided at both sides of the roller shutter door 8 to achieve a locking function, which will not be described in detail. Example 6

Referring to FIG. 15, the above structure of the present invention is applied as a locking unit to a lock such as a U-shaped lock 9. The insert rod 91 of the U-shaped lock 9 can be inserted into the opening 92 of the additional lock body 4 in any manner. The insert rod 9 of the U-shaped lock 9 is hinged, and the other insert rod 91 is inserted into the lock hole by the lock tongue 11 through the through hole 43. Locked in 94.

As shown in FIG. 16, the insertion hole 92 for the U-shaped lock plunger 91 can also be provided on the same side of the additional lock body 4. At this time, the left side of the additional lock body 4 should be completely sealed (such as using a plastic or metal bulkhead). ) To hide the keyhole. For example, when the left side is unsealed and the blocking structure in front of the keyhole is removed, although the top keyhole loses its concealment, it still has the function of idling and anti-twisting, and is simple to manufacture and low in cost.

Further, as shown in FIG. 17, the length of the additional lock body 4 can be extended, and an electronic alarm device 7 controlled by the position movement of the lock tongue 11 can be further installed.

As shown in FIG. 18, the U-shaped lock 9 can also be replaced with a chain lock 93, and both ends of the U-shaped lock 9 are inserted into the socket 92, and the locking tongue 11 is inserted into the locking hole 94 to achieve locking.

In this embodiment, by appropriately deforming the additional lock body 4, it can be naturally introduced into the manufacturing of other locks, such as a padlock, a car steering wheel lock, a gear lock, etc., as shown in FIG. 19, which is set as a disc lock. Example 7

Referring to FIG. 20, the lock of the present invention is fixed by a method such as riveting, pin connection, gluing or welding. It is fixedly installed on the bicycle tubes 101 and 102 of the bicycle, and is integrated with the locked bicycle, that is, the lock body becomes a part of the vehicle body, and the steering faucet is controlled. When the top lock 1 is locked, the lock tongue 11 enters the opening of the bicycle fork to prevent it from turning. When the lock tongue 11 is returned to the lock body 1 in the opened state, the front fork can rotate freely.

The above locks can be installed in positions A, B, C, D or other suitable positions, and can also be used to lock other positions of the axle rotation. When installed in the B or C position, the outer port of the lock facing outwards is closed with metal or a material that is difficult to destroy to prevent tools from entering the lock body and damaging the lock.

In the same way, the lock body can also be implemented in the control of motorcycles, electric bicycles, tricycles, automobile steering wheels, motor vehicles' doors or axles, etc., so that the lock and the object to be locked can be integrated into a whole. Compared with existing vehicle anti-theft devices and methods, such as ordinary faucet locking structure or steering wheel locking technology, the lock of this embodiment not only hides the lock cylinder and keyhole, but also the reamer type tool does not produce a destructive effect, which completely solves the problem. The existing locks can not withstand the problems of violent tools twisting, pulling, prying the lock core and being easily unlocked by technology, and have excellent anti-theft and destructive properties. Further, the lock body is integrated with the car beam or the car body. Breaking the lock will cause the car body beam to be damaged and cannot be used normally. It also solves the damage caused by the lock and the car separation. The lock core or the lock body can be stolen intact. Vehicle problems can fundamentally prevent vehicle theft.

In addition to the above-mentioned additional lock body 4 in the shape of a long bar or a cylinder, it can also be made into any other shape, such as a round cake shape and a spherical shape, in order to adapt to different applications. It only requires a convenient lock core inside. Just install the long space. Referring to FIGS. 21 to 24, the lock body installation method provided by the present invention sets the top lock head 1 in any installation hole 2 reserved for a general lock, so that the lock body 1 and the installation hole 2 are false. The connection strength of the false fixing is between the torsional force of the key when the key is normally opened and the torsional force of the lock core being twisted; from the appearance, the final lock body formed by the installation method of the present invention and the There is no obvious difference in the final lock body formed by the conventional fixed installation method, but the lock body of the present invention can cause the top lock lock 1 to idle relative to the installation hole 2 under the action of violent twisting, which can fundamentally prevent reamer tools. Destroy lock core, excellent anti-theft performance. The specific content of this solution is the same as that of Embodiment 1, and will not be repeated. What has been described above is only a description of the embodiments of the present invention, and not a limitation on the concept and scope of the present invention.

Claims

Claim

1. A lock body structure capable of preventing a lock core from being twisted, comprising a top lock lock disposed in a mounting hole of the lock body; characterized in that: the top lock lock and the mounting hole are falsely fixed; The strength of the fixed connection is between the torsional force when the key normally opens the lock body and the torsional force that the lock core can be twisted.

2. The lock body structure capable of preventing the lock core from being twisted according to claim 1, characterized in that: the strength of the pseudo-fixed connection is between the maximum torsional force of the key when the key is normally opened and the minimum torsion resistance of the lock core. Between forces.

3. The lock body structure capable of preventing the lock core from being twisted according to claim 1 or 2, characterized in that: the false fixation is a tightening connection on the peripheral surface of the top lock lock and the mounting cavity.

4. The lock body structure capable of preventing the lock core from being twisted according to claim 3, characterized in that: the tension connection is tensioned by a rubber holster, a plastic sleeve, a metal foil or an elastomer; or, the tension connection It is directly used as the transition and interference fit between the top lock head and the mounting hole.

5. The lock body structure capable of preventing the lock core from being twisted according to claim 1 or 2, characterized in that: the false fixing adopts an axial limit top tight connection.

6. The lock body structure capable of preventing the lock core from being twisted according to claim 5, characterized in that: the axial limit top tight connection can be locked by a rubber holster, a plastic sleeve, a metal sheet or an elastic body at the top lock The inner or outer end of the head is tightened with the fitting portion of the mounting hole, or by a step or a spring limit; or directly by the inner or outer end of the top lock lock with the fitting portion of the mounting hole .

7. The lock body structure capable of preventing the lock core from being twisted according to claim 1 or 2, characterized in that: the false fixing adopts an adhesive bonding form, and the adhesive can be arranged on the top lock The peripheral surface or one end surface matching the head and the mounting hole of the lock body, or both of the peripheral surface and the end surface.

8. The lock body structure capable of preventing the lock core from being twisted according to claim 1 or 2, characterized in that: the false fixing is connected by an elastic telescopic pin or an easily broken pin, and the elastic telescopic pin or The easily breakable pin can be arranged between the top lock lock and the mounting hole in the radial direction, and there is at least one; or the axial position is provided on the end face position of the top lock lock and the mounting hole.

9. The lock body structure capable of preventing the lock core from being twisted according to claim 1 or 2, wherein a stop portion is provided at an outer section of the mounting cavity.

10. The lock body structure capable of preventing the lock core from being twisted according to claim 1 or 2, characterized in that the surface of the top lock lock head is provided with a small convex part for increasing friction force.

11. The lock body structure capable of preventing the lock core from being twisted according to any one of the preceding claims, characterized in that-the top lock head is disposed in an additional lock body, and the additional lock body is provided with the installation hole The false lock is realized with the top lock head, and the additional lock body is provided with a through hole for the lock tongue to enter and exit, and an opening corresponding to the keyhole for the key to be inserted into the lock.

12. The lock body structure capable of preventing the lock core from being twisted according to claim 11, wherein the end of the additional lock body directly opposite the keyhole is opened or closed.

13. The lock body structure capable of preventing the lock core from being twisted according to claim 11, wherein the external shape of the additional lock body is cylindrical, spherical, prismatic, or flat to suit different applications.

14. The lock body structure capable of preventing the lock cylinder from being twisted according to any one of the preceding claims, characterized in that: a blocking structure is provided on the side of the keyhole facing outward.

15. The lock body structure capable of preventing the lock cylinder from being twisted according to claim 14, wherein the blocking structure is a push rod which is installed in front of the keyhole and can slide freely or can slide and rotate at the same time. The tail or side of the lever pushes the lock core into the top lock lock body under the direct or indirect push of the hand to achieve a convenient locking operation. There is a through slot and an opening at the corresponding position of the push lever and the additional lock body, so that the key can pass the push A keyhole is inserted into the shaft.

16. The lock body structure capable of preventing the lock core from being twisted according to any one of the preceding claims, further comprising: an electronic alarm device, wherein the power switch of the electronic alarm device is controlled by the movement of the top lock bolt to alarm prompt.

17. The lock body structure capable of preventing the lock core from being twisted according to any one of the preceding claims, characterized in that: the outer surface of the additional lock body is provided with an outer sleeve body capable of freely rotating or sliding relative to it to prevent rain or Dust enters the additional lock body, and an outer opening is provided at a position of the outer shell corresponding to the opening of the additional lock body.

18. The lock body structure capable of preventing the lock core from being twisted according to any one of the preceding claims, characterized in that: the lock body structure is provided on an anti-theft door or a rolling door or a safe door or a car door; or U-lock or chain lock or padlock or disc lock or car steering wheel lock or gear lock; or applied to the lock of bicycle or tricycle or electric bicycle or motorcycle faucet or car rotating shaft or electric door part or car steering wheel, and make the lock The body is fixed with the locked car body as a whole.

19. A lock body installation method capable of preventing the lock core from being twisted, characterized in that: a false fixed connection is set between the top lock lock head and the lock body installation hole, and the strength of the false fixed connection is between Between the twisting force of the key when the key is normally opened and the twisting force of the lock core being twisted; when the key is normally opened by the key, the overlock lock head is relatively fixed to the installation hole, and the external force is used to lock the lock body. Can make the top lock lock rotate idly relative to the installation hole.

20. The lock body installation method capable of preventing the lock core from being twisted according to claim 19, wherein: the false fixed connection is a tightening connection on the peripheral surface of the top lock lock and the mounting hole; or Axial tight connection; or adhesive bonding connection; or connection by easily broken pin or elastic telescopic pin.