WO2005033449A1

WO2005033449A1 - A lock structure

Info

Publication number: WO2005033449A1
Application number: PCT/CN2004/001129
Authority: WO
Inventors: Caidong Qin
Original assignee: Caidong Qin
Priority date: 2003-10-08
Filing date: 2004-09-30
Publication date: 2005-04-14
Also published as: CN1856631A; CN1605703A

Abstract

The present invention relates to a lock, which comprises a tapered ned (1), mounted in a additive lock body (4) hich has an aperture (41) for fixing and a through hole (43) located thereon for the lockpin passing in and out. A peristome (42) is fixed on the additive lock body (4) for a key inserting in to open the lock normally. The engagement of the lock body (1) and the aperture (41) is a fake connection, thereby allow the rotor of lock (that is lock core (l3)) and the stator of lock to rotate together via joint by a ball in the lock core. The lock core (13) is revented from drilling and opening illegally, as the lock body (l) having the function of racing, when the lock ore (l3) is drilled by violent tools.

Description

Lock body structure

The invention relates to a lock, and in particular to a lock body structure that can hide a keyhole and increase the difficulty of illegal opening. 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 core is exposed, so that the core part of the lock, such as the lock core, will directly face the violence of a violent tool, and it is easy to be opened by power drills, reamers, etc. inserted into the keyhole to break the lock core, or pried by tools. It is opened by smashing, or by technical operations such as wire, sheet tools. Secondly, the lock body and the mounting 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 realize 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. For a long time, the important problem of the lock core being twisted has been ignored by the industry. For locks, this problem is the essential difference of the lock being ineffective, and the problem of the lock core destroying the lock core, such as media reports, is a lot of thieves The main method used in actual theft is urgently needed to be improved by the industry. 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, an embodiment of the cover (box) outside the keyhole 60 is provided with a through slot 61 into which a key 30 is 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, to a certain extent, prevents the violent tools from drilling or inserting the keyholes and twisting the lock core and Open the lock; on the other hand, because the keyhole does not directly face the illegal unlocker, it is not easy to be found, increasing the complexity of illegal unlocking and improving the anti-theft performance.

Other keyhole structures with hidden keyholes, 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. There is also a hidden keyhole solution that hides the lock body in the sleeve, such as U.S. Patent No. 4,854,585 and Chinese Patent No. 02232417, which discloses such a lock body structure. This type of lock body is provided on the sleeve for human or key insertion. The opening can also prevent a large reamer from twisting the lock core to a certain extent. As for other schemes to hide keyholes, they will not be detailed. However, the aforementioned lock body structure with hidden keyholes still has the following deficiencies during actual use and installation: 1. The installation of the lock body 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 Forming a locking device for a door or other uses restricts the manufacturing and application fields of the lock body due to the structure and design of the object being locked, and also brings great trouble to the installation of the lock body. Moreover, the above-mentioned lock bodies cannot form one kind of Easy-to-manufacture and independent universal lock devices cannot be easily and widely used in various locking fields, and their use is limited.

2. The main principle of the aforementioned lock body is to hide the lock body under a covering, and to increase the difficulty of unlocking by making it difficult to find the keyhole by an illegal unlocker, so as to provide protection. However, the illegal unlocker can still destroy the cover first and then directly destroy the lock body. The obstacle of illegal unlocking is still not difficult, and it can still be overcome by the illegal unlocker, and the protection function is not ideal.

3. More importantly, in the foregoing solutions, an opening corresponding to the keyhole is provided on the locked object such as a cover or a door panel, and at the same time, the lock body and the installation hole are still fixed, and a small reamer, The screwdriver, especially the L-shaped small reamer, is inserted into the keyhole through the opening corresponding to the keyhole, and the key cylinder is further twisted to achieve illegal opening, which cannot fundamentally solve the problem that the key cylinder is easy to twist.

Correspondingly, in order to solve the defects brought about by the lock body and the mounting hole being fixed, a lock body structure in which the lock core can rotate freely has appeared, such as the Chinese patent 99246767 patent case, which enables the lock core to be able to Free rotation. Although this solution can solve the damage of reamer tools, the keyhole is still exposed, and the structure requires the removal and installation of the lock head each time it is locked and opened. The operation is very difficult 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 makes the lock structure very complicated, and the internal structure is easily damaged by lateral forces. Or the deformation of the lock cylinder makes it difficult to have the ability of idling protection, and the keyhole is still exposed, the effect is not ideal, and the lock core anti-twist function cannot be easily achieved.

In view of the previous solutions, in terms of improving the defects of the lock body, the two defects of the exposed keyhole and the lock body and keyhole fixation have not been comprehensively improved. Either the keyhole is hidden, but the lock body and the keyhole are fixed; or the lock body and the keyhole are fixed. The keyhole can be rotated relatively, but the keyhole is still exposed and cannot be taken into account. Summary of the invention

The technical problem to be solved by the present invention is to provide a lock body structure. The lock body is easy to manufacture, and can be made into independent and universal locks. It can be widely applied to a variety of occasions, has good universal performance, and can The structure plays a protective role.

Another technical problem to be solved by the present invention is to provide a lock body structure, which can completely solve the problem of illegal opening of the lock caused by violent tools such as reamers, especially small reamers, which can damage the lock core, and the lock is extremely practical and reliable. Another technical problem to be solved by the present invention is to provide a lock body structure, which can increase the difficulty of illegal unlocking and has better anti-theft performance.

The technical solution of the present invention is: a lock body structure, including a top lock lock, the top lock lock is disposed in an additional lock body with a mounting hole, and the additional lock body is provided with a through hole for the lock tongue to enter and exit, And the additional lock body is provided with an opening for the key to be inserted into the normal unlocking. Therefore, the lock body can be made into an independent and universal lock according to the specific form of the locked object, which can completely eliminate the repeated design and installation work for each locked object, and directly install the finished products of the various types of locks of the present invention on The corresponding reserved position of the locked object is sufficient, the universal performance is good, and it can be widely applied to various occasions, and at the same time, it can protect the lock core.

The top lock lock (pushlock in Chinese may be referred to as a press lock) of the present invention is an existing lock body structure that is used independently. The lock lock is opened or closed by the lock tongue moving in and out along the lock core axis, which is different from ordinary The lock or 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. The present invention aims to cover the additional lock body outside the lock body to solve the problems of versatility and additional protection. Therefore, the material, shape, specific structure, etc. of the additional lock body are not specifically limited, as long as the lock body is installed on The body of the acupoint should belong to the protection scope of the present invention, and there are no restrictions on whether the additional lock body completely covers the lock body, how to cover the lock body, and the like.

Further improvement is to make a false fixation between the top lock lock head and the installation hole, and the strength of the false fixation is between the torsional force of the key when the key is normally opened and the torsional force of the lock core being twisted. When the lock body is normally opened by the key, the top lock lock is relatively fixed to the installation hole, and when the lock body is subjected to violent twisting action, the top lock lock can be idled relative to the installation hole.

Compared with the existing structure, although there is always a scheme of using a tongue lock to hide the keyhole, if the lock body is idling, it is equivalent to the opening of the lock. Therefore, the entire lock cannot be considered in the prior art solutions. The body idling method solves 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. However, the present invention makes the top lock lock falsely fixed to the mounting hole. Under the action of the illegal external force 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 and cannot act on it. The lock produced a technical effect that had not been thought of before, overcoming the technical prejudice that the lock body and the mounting hole should be completely fixed in the existing lock body design and installation field, and also changed the need to identify the two. Under the premise of fixing, through the industry habits such as hiding the keyhole and changing the structure of the lock core so that the lock core can idle, the simplest way to solve the technical problem of anti-pry and anti-twist existing in the lock head has been solved in the simplest way. The invention allows the top lock lock head and the mounting hole to achieve a weak pseudo-fixation. Once the lock core is twisted by a violent tool, the stator part of the lock head is relatively falsely fixed to the mounting hole, which can allow the lock rotor (lock The core part) and the stator part are connected together and rotated at the same time by 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 twists. Knife tools can't twist the lock cylinder and open it, so that the lock cylinder can be fundamentally protected. It can fundamentally solve the problem of anti-twisting of the lock core; when the key is normally opened, the rotor part of the lock core can be rotated, and the stator part is still relatively fixed with the lock installation hole, which will not affect the normal unlocking.

Specifically, examples of false fixing methods are as follows:

First, the top lock lock is matched with the installation hole to tighten the peripheral surface. For example, a rubber holster, a plastic cover, a metal foil, or an elastic material sleeve can be placed between the top lock lock and the installation hole. The mating surface can be used to achieve tightening, but it is not limited to the materials mentioned. Other materials that can achieve tightening and fixing can be used.

Second, it adopts axial limit tightening connection, which can be tightened by the tightening material such as rubber holster, plastic sleeve, metal foil or elastomer on the inner or outer end face of the lock lock and the fitting part of the installation hole. Either the step or the clamping spring is used to limit the tightening; or the tightening material is not used, but the inner or outer end of the top lock lock is directly tightened 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 adhesive is used for bonding. The adhesive can be provided on the peripheral surface or one end surface of the top lock lock and the installation hole, or on the peripheral surface and the end surface. As long as the two can be relatively fixed, the specific place where the adhesive is bonded or the number of bonding points are not limited, but the bonding strength should not be less than the torsional moment generated by the key when the lock is normally opened to ensure the normal lock body use.

Fourth, use elastic telescopic pins or easily broken pins to connect. Elastic telescopic studs or easily breakable studs can be located between the top lock head and the peripheral surface of the mounting cavity in the radial direction, and at least one, or between the top lock head and the installed end face in the axial direction. , Preferably two. Among them, the easily breakable pin is more likely to be broken or broken than the ball in the lock core under the action of twisting force; the elastic telescopic pin is retracted under the action of torque to enable the lock to rotate more freely; if a permanent pin is used, it is usually made The abutment is against the peripheral surface of the top-locking lock, and under external force twisting, the abutting state can be destroyed and the lock can be idled.

In this improvement scheme, the main reason is to change the conventional design ideas in the field of locks, to overcome the technical prejudice that locks and installation holes should be fixed, and to adopt a weaker pseudo Fixing to achieve the purpose of anti-theft, so long as a false fixing is used between the lock and the mounting hole, and the connection strength of the false fixing is between the torsional force of the key when the key is normally opened and the lock core is twisted The bad torsional force should belong to the protection scope of the present invention, and is not limited to the aforementioned several types of pseudo-fixation. In the prior art, other schemes that can achieve pseudo-fixation can be used completely, and should belong to The protection scope of the present invention.

Further, a blocking structure is provided on the outward side of the keyhole to further increase the difficulty of technical unlocking. The blocking structure has a variety of implementation structures, for example as follows-1. The blocking structure may be a trumpet shaped blocking piece or an elastic piece or an elastic wire distributed in the radial direction. A second locking device can also be provided on the outside 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 is protected by an additional lock body, idling protection and blocking structure. Provided Multiple protection functions. In general anti-theft situations, such as the use of a keyhole concealment and a blocking structure, a fixed connection can be achieved between the top lock head and the installation hole of the additional lock body.

2. The blocking structure is a push rod installed in front of the keyhole. The tail or side of the push rod pushes the lock core into the top lock lock body directly or indirectly (through other small objects) to achieve convenient locking operation. The push rod is provided with a through slot and a key opening at a position corresponding to 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, and further increase 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 contact the keyhole, and the lock body can have multiple protection functions.

Preferably, the indirect lock tongue can be used for the top lock head. The indirect locking tongue is a conventional technique and will not be described further. The advantage of using the indirect lock tongue is that the indirect lock tongue bears the force load during locking, and the lock head does not bear the external force generated by the lock, which ensures that the lock head and the lock cylinder inside are not easily damaged.

Preferably, the outer surface of the outer body of the additional lock is provided with an outer cover body which can freely rotate or slide relative to it to prevent rain or dust from entering the extra lock body. An outer opening is provided at a position of the outer cover body corresponding to the opening of the additional lock body.

Preferably, the electronic alarm device further comprises an electronic alarm device, and the power switch of the electronic alarm device is controlled by the movement of the top lock tongue to give an alarm prompt, so as to further increase the alarm prompt function of theft prevention.

The various types of lock structures of the present invention as described above can be applied to anti-theft doors or roller shutter doors, safe doors, automobile doors, etc .; or to U-shaped locks or chain locks or padlocks or disc locks or automobile steering wheel locks or gear shifts. Locks, etc .; or locks for bicycles, tricycles, electric bicycles or motorcycles, faucets or car turning shafts or electric door parts, or steering wheels of cars, and make the lock body and the locked vehicle a whole. As long as the solution of the present invention is adopted, other unmentioned application occasions should also fall within the protection scope of the present invention.

Obviously, the present invention is applicable to all other schemes except for idling protection, which is not applicable to the tongue lock, and will not be described again. Compared with the prior art, it also has good universal performance and multiple protection effects.

In summary, the present invention has the following beneficial technical effects over the prior art.

1. The additional lock body and the lock head of the present invention can be formed into an integrated lock and used as a final product or an accessory product, so that the present invention can be made into an independent and universal lock body, which is widely applicable to various occasions and has good universal performance. In addition, the keyhole is not exposed, and the lock core and related structures are hidden to the greatest extent. The opening of the additional lock body only allows the key to enter and unlock to unlock, and does not allow manual entry. It can play a role of space constraint and reduce the insertion of the small reamer into the lock. The eye damages the lock core. When an illegal unlocker breaks the lock, the additional lock body needs to be broken again to destroy the lock core, and it has one more protective effect.

2. The lock body and the lock hole of the present invention have a protective idling function. Even if a small electric drill, a reamer, etc. enter an additional lock body, the lock body can be protected by the idling of the lock core so that the lock body cannot be destroyed and opened, which can fundamentally Prevent reamer-type tools from damaging the lock cylinder, and the anti-theft performance is excellent. 3. The blocking structure provided in the present invention further increases the difficulty of illegal unlocking and has a good anti-theft effect. BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 shows the structure of a conventional lock body.

FIG. 2 is a schematic diagram of Embodiment 1 of the present invention.

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 adopting a tensioning, an axially pressing, and an elastic telescopic pin connection.

FIG. 4 is a schematic structural diagram of an embodiment of the present invention using a tightening connection.

FIG. 5 is a schematic diagram of an embodiment of the present invention using adhesive bonding.

FIG. 6 is a schematic diagram of an embodiment of the present invention using a breakable pin connection.

FIG. 7 is a schematic diagram of the key direction of the additional lock body opening in front of the keyhole obliquely in the embodiment 1 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 according to Embodiment 1 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 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 anti-theft of a door body according to Embodiment 5 of the present invention.

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

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

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

FIG. 17 is a schematic diagram of a lock body used in a U-shaped lock with an electronic alarm device according to 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.

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

FIG. 21 is a schematic structural diagram of Embodiment 8 of the present invention. detailed description

Example 1

Referring to FIG. 2, the present invention includes an overlock lock head 1, an installation hole 41 is set in an additional lock body 4, and the overlock lock body 1 is set in the installation hole 41, and the additional lock body 4 is provided with a lock tongue 11. The through hole 43 and the key opening 42 are provided. The opening 42 is provided on the side corresponding to the keyhole of the additional lock body 4 (of course, it can also be provided on the end surface, as shown in FIG. 3). The lock tongue 11 is inserted into the keyhole of the object to be locked (Not shown) for locking, The top lock lock 1 and the mounting hole 41 are pseudo-fixed. The strength of the pseudo-fixation is between the torsional force of the key when the key is normally opened and the torsion force of the lock core being twisted, see FIG. 2A The torsion force of the lock body normally opened by the key will be within a normal torsion force range T1 ~ T2, and the lock core of the lock body 1 also has a torsion or twist resistance range T3 ~ T4. The false fixing of the present invention You can choose between these two ranges. Optimally, the strength of the pseudo-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 intensity T may also be between T1 and T4; or between T2 and T4; or between T1 and T3.

The false fixing of the present invention can adopt an axial limit tightening connection, and 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. As shown in FIG. 2, the step 40 can be tightened axially to prevent the top lock 1 from moving in the axial direction. The step 40 can be in the shape of a round tube, or can be rectangular, and the step 40 can be used. Engagement, adhesion, screwing, tight fit and other detachable ways are provided in the additional lock body 4, as shown in Figs. 2, 5, and 6, so as to facilitate the installation of the lock 1; In addition, the step 40 may also be a spring instead. In addition, as shown in FIG. 3, a tightening material 35 such as a rubber holster, a plastic cover, a metal sheet, or an elastic body can also be tightened at the matching portion of the inner end surface 10 of the top lock lock 1 and the mounting hole 41.

As shown in Figs. 3 and 4, the false fixing can also be implemented as a tightening connection of the mating peripheral surface of the top lock lock 1 and the mounting cavity 41. The frictional force generated by the tightening effect can achieve false fixing, and the frictional force is not. It should be less than the torsional moment generated by the key when the lock body 1 is normally opened. Tightening can be achieved by a rubber holster, a plastic sleeve, a metal sheet, or an elastic material, such as 34 sleeves, placed on the mating surface between the top lock lock 1 and the mounting cavity 41.

As shown in FIG. 5, false fixing can also be achieved by bonding with an adhesive 36, which can be provided on the peripheral surface of the top lock 1 and the mounting cavity 41, 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. 6, 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 material of the pin in the lock core. In FIG. 6, 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 FIGS. 2 and 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.

The form of the pseudo connection according to the present invention is not limited to the foregoing examples. As long as the strength of the connection between the lock body and the lock cavity is between the torsional force of the key to normally open the lock body and the torsion force of the lock core, it should belong to the scope of the present invention. In addition, the additional lock body 4 and the lock body stator may be integrally formed, and between the two. The provision of weaker connection ribs is also a false connection and is no longer mentioned.

The additional lock body 4 is a hollow shell with a mounting hole, and can be composed of a thin plate or a pipe body with an elongated mounting hole. The material can be selected from metal, polymer (plastic, rubber or resin), wood or steel. Made of any material, such as glass, for additional locks with high strength, it will further increase the difficulty of illegal unlocking. After the illegal opener destroys the locked object, it is necessary to destroy the additional lock body 4 of the present invention before it can touch the lock The core has an additional protection function; its shape is any shape such as cylindrical, spherical, prismatic or flat. The mounting hole 41 is optimally a round hole to suit different applications. In addition, as shown in FIG. 4, the lock body The two ends of 4 can be closed to have a stronger concealing effect on the lock body 1. The additional lock body 4 can be integrally formed outside the lock head 1 by injection or extrusion, and the mouth 42 is provided directly opposite the keyhole 13 End face. As shown in FIG. 5, the additional lock body 4 may also be opened at both ends to facilitate the installation and manufacture of the lock body; of course, as shown in FIG. 6, only one end may be opened.

As shown in FIG. 2, the plane on which the opening 42 of the additional lock body 4 is located is not parallel to the end face on which the keyhole 13 is located. Preferably, the opening plane is perpendicular to the end face of the keyhole 13 or has a large acute angle, but it is preferably perpendicular, and The opening 42 on the lock body 4 is directly obliquely in front of the key cylinder 13.

The opening 42 is preferably in the shape of a thin strip, so that the key can easily enter the additional lock body 4 and minimize the open space of the lock core 13 to the outside. The opening 42 can be in the shape of a letter (as shown in FIG. 11). As shown in FIG. 7, the lock cylinder should adopt the structure of a top lock cylinder 1 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, a key handle 52 and a 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 may be L-shaped as shown in FIG. 2, 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 is L-shaped 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 made obliquely 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. 2, the L-shaped key is inserted into the keyhole 13 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, causing the top lock cylinder 13 to enter In the 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 retracted from the lock housing (the stator portion of the lock cylinder) to the lock by the internal spring 14. And the key 5 can be removed from the lateral opening.

In the present invention, the additional lock body 4 and the top lock head 1 can be formed into an integrated lock, which is easy to manufacture and has good universal performance. Keyhole 13 is not exposed, it can play a role of space constraint, and can stop small violence tools Inserting the keyhole 13 through this opening 42 destroys the lock core, and has a double protection effect on the lock body 1. Even if a small reamer is inserted into the keyhole 13, the mounting holes 41 of the lock head 1 and the additional lock body 4 are not really fixed. When the keyhole 13 is twisted by a reamer-like tool, the lock head 1 can slip and idle in the additional lock body 4 to fundamentally protect the lock core in the lock head 1 from being damaged, which can completely solve the problem of the existing locks. Anti-theft problem.

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 force, so as to achieve the strength required for false fixing, and no longer provides a drawing . Example 2

As shown in FIG. 2, the principle and effect of this embodiment are exactly the same as those of Embodiment 1. The only difference is that in order to further increase the difficulty of technical unlocking, a blocking structure is provided in front of the lock cylinder keyhole 13 in the additional lock body 4. . For example, it can be a trumpet-shaped elastic piece or baffle piece 54. Further, the elastic piece or baffle piece 54 is controlled by another second locking device to stay in front of the keyhole 13 to protect the lock body 1 for a third time. , The illustration is omitted.

As shown in FIGS. 9 and 10, the blocking structure may also be a sliding rod 6 that is installed in front of the keyhole 13 and can slide freely. The tail or side of the driving rod 6 is pushed by a hand or pushed by other objects, such as a key. The lock cylinder enters the top lock head body 1 to realize convenient locking operation. The push lever 6 is provided with a key opening 61 and a through slot 62 through which the key can pass, 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. As a sliding body and a rotating body, the push rod 6 can play a role of concealing and protecting the buttonhole, further increasing the difficulty of technical unlocking and violently destroying the lock core.

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.

Of course, in the general anti-theft situation, the top lock lock 1 can only be set in the additional lock body, or the blocking structure 6 can be further provided, without having to falsely fix the top lock lock 1 and the installation hole 41. The conventional fixed installation will not be described in detail.

In order to prevent rainwater or dust from entering the additional lock body 4 through the opening 42, an outer cover body that can freely rotate and slide can 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 cover body, the outer cover body and the additional An outer opening (not shown) is provided at a position corresponding to the opening 42 of the lock body 4. Example 3

Referring to FIG. 11, the principle and effect are completely the same as those in Embodiments 1 and 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 position movement of the lock tongue 11, further increasing 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 lock tongue 11 from being directly affected by external forces, an indirect lockout seat 15 is installed before the lockout 11. In the open state of the lock, the indirect lockout 151 is returned to the indirect lock by the spring 152 In the back of the tongue 15, the bolt 11 connected to it is retracted into the lock housing of the lock 1 to reach the open position; in the locked state, the bolt 11 is pushed out, and the pushed bolt 11 pushes the indirect bolt 151 Entering the lock tongue locking hole to achieve the purpose of locking can ensure that the lock head 1 and the lock core therein 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 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 parallel to the door rim, or an indirect lock tongue structure can be used. 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 insertion rod 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 plastic or Metal stuffy head) to hide the keyhole. If the left side is unsealed and the blocking structure in front of the keyhole is removed, It is concealed, but still has the function of idling and anti-twist, and it is easy to manufacture and low 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, the additional lock body 4 is appropriately deformed, so that it can be naturally introduced into the manufacture of other locks, such as a padlock, a car steering wheel lock, a gear lock, etc. As shown in FIG. 19, a disc lock is provided. Example 7

Referring to FIG. 20, the lock of the present invention is fixedly mounted on the bicycle tubes 101 and 102 of the bicycle by methods such as riveting, pin connection, glue connection, or brazing, and is formed as a whole with the locked bicycle, that is, the lock body becomes the vehicle body. Part of the steering faucet. 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 retracted into 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, it can also be implemented in the control of motorcycles, electric bicycles, tricycles, automobile steering wheels, motor vehicles' switches or axles, etc., so that the lock and the locked vehicle can be fixed as a whole. Compared with the 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 core and keyhole, but also does not have the effect of damaging tools such as reamer tools. 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, and the destruction of 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. Example 8

Referring to FIG. 21, the difference between this embodiment and Embodiments 1 to 7 is that the lock body uses a common lock or a turn lock 1A, the lock tongue 11A is perpendicular to the axial direction of the lock cylinder, and the turn lock 1A is provided in an additional lock The body 4 must be fixed. The opening 42A can be opened on the end face of the additional lock body 4A, and the through hole 43A for the lock tongue 11A to enter and exit. It is set on the side of the additional lock body 4 and a blocking structure is provided to further increase the unlocking difficulty and strengthen the anti-theft performance. The blocking structure may be a flared blocking piece or an elastic piece or an elastic wire 54A disposed in front of the keyhole 13.

Further, a second locking device is provided on the outer side of the blocking structure, and the second locking device controls whether the trumpet-shaped flap or the elastic piece or the elastic wire 54A stays in front of the buttonhole. In addition, the blocking structure may also be a third independent lock set outside the keyhole 13, which is not provided in the drawings.

Further, the blocking structure may also be a rod that is installed in front of the keyhole 13 and can rotate freely (and can slide a little). Refer to the push rod 6 shown in FIGS. 9 and 10. The rod 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 inside of the rod 6 and allow rotation to open the lock. The shape of the key opening 61 on the rod 6 may correspond to the shape of the key, such as a circular hole shape, a long stripe shape, a cross shape, and the like. As a freely rotating body, the rod 6 can play a role of concealing and protecting the keyhole, further increasing the difficulty of technical unlocking and violent destruction of the lock cylinder.

Further, in order to prevent rainwater or dust from entering the additional lock body 4 through the opening 42, an outer cover body that can freely rotate and slide can 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 cover body, the outer cover body An external opening (not shown) is provided at a position corresponding to the opening 42 of the additional lock body 4.

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

A lock body structure comprising a top lock lock, characterized in that: the top lock lock is disposed in an additional lock body having a mounting hole, and the additional lock body is provided with a through hole for the lock tongue to enter and exit, and The additional lock body is provided with an opening for the key to be inserted into the normal unlocking.

2. The lock body structure according to claim 1, wherein the additional lock body is a hollow sleeve body.

3. The lock body structure according to claim 2, wherein the end of the hollow sleeve body directly opposite the keyhole is open or closed.

4. The lock body structure according to claim 1, wherein the external shape of the additional lock body is cylindrical, spherical, prismatic, or flat, so as to be suitable for different applications.

5. The lock body structure according to claim 1, characterized in that: the overlock lock head and the mounting hole of the additional lock body are pseudo-fixed, and the strength of the pseudo-fixation is 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.

6. The lock body structure according to claim 5, characterized in that: it is falsely fixed as a tightening connection on the peripheral surface of the top lock lock head and the mounting hole.

7. The lock body structure according to claim 6, wherein the tightening connection is realized by a rubber holster, a plastic cover, a metal sheet or an elastomer.

8. The lock body structure according to claim 5, wherein: the false fixing is tightly connected by an axial limit.

9. The lock body structure according to claim 8, characterized in that: the axial limit top tight connection may be a rubber holster, a plastic cover, a metal foil or an elastic body on the inner or outer end surface of the top lock head. Tighten the fitting part with the mounting hole, or tighten by the step or the spring limit; or directly tighten the fitting part of the mounting hole of the lock body with the inner or outer end of the top lock lock.

10. The lock body structure according to claim 5, characterized in that: the false fixation is in the form of adhesive bonding, and the adhesive can be provided in a top lock lock that cooperates with a lock installation hole of the lock body. The peripheral surface or at least one end surface, or both of the peripheral surface and the end surface.

11. The lock body structure according to claim 5, characterized in that: the false fixation is connected by an elastic telescopic pin or a breakable pin, and the elastic telescopic pin or the breakable pin can be arranged in a radial direction On the peripheral surface; or on the end surface in the axial direction.

12. The lock body structure according to claim 5 to 11, wherein an inner end surface or an outer peripheral surface of the top lock lock is provided with a small convex portion for increasing friction.

13. The lock body structure according to any one of the preceding claims, characterized in that: the side of the keyhole facing outward is provided with a blocking structure for increasing the difficulty of illegal unlocking.

14. The lock body structure according to claim 13, wherein: the blocking structure is a mounting structure A push rod that can slide freely or can slide and rotate at the same time in front of the keyhole. The push rod pushes the lock core into the top lock lock under the push of an external force to achieve convenient locking operation. There is a through slot at the corresponding position of the push rod and the additional lock body. And an opening so that the key can enter the keyhole through the body of the pusher.

15. The lock body structure 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 give an alarm.

16. The lock body structure 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 rainwater or dust from entering the additional lock body. The outer body is provided with an outer opening at a position corresponding to the opening of the additional lock body.

17. The lock body structure 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 it is applied to a cymbal lock or a chain lock or Padlock or disc lock or car steering wheel lock or gear lock; or applied to the lock of a bicycle or tricycle or electric bicycle or motorcycle's faucet or car rotating shaft or electric door or the steering wheel of a car, and fix the lock body to the locked vehicle into A whole.

18. A lock body structure, including a turning tongue lock body, characterized in that: the turning tongue lock body is disposed in an additional lock body having a mounting hole, and the additional lock body is provided with a through hole for the tongue to enter and exit, and The additional lock body is provided with an opening for the key to be inserted into the normal unlocking; and the additional lock body is provided in front of the keyhole with a blocking structure for increasing the difficulty of illegal unlocking.

19. The lock body structure according to claim 18, wherein the blocking structure is a trumpet-shaped blocking piece or an elastic piece or an elastic wire in front of the keyhole, and a second locking device is provided on the outside of the blocking structure. The second locking device controls whether the trumpet-shaped blocking piece or the elastic piece or the elastic wire stays in front of the keyhole.

20. The lock body structure according to claim 18, wherein the blocking structure is a rod that is freely rotatable installed in front of the keyhole, and the rod is provided with a through slot corresponding to the additional lock body. And an opening so that the key can enter the keyhole through the body of the rod.

21. The lock body structure according to claim 18 to 20, characterized in that: the outer surface of the additional lock body is provided with an outer cover body capable of freely rotating or sliding relative to the outer body to prevent rainwater or dust from entering the additional lock body, and The body is provided with an external opening at a position corresponding to the opening of the additional lock body.