CN111911014A

CN111911014A - Anti-theft connection structure, anti-theft connection device and hub locking anti-theft device

Info

Publication number: CN111911014A
Application number: CN202010912466.4A
Authority: CN
Inventors: 肖永聪
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-02
Filing date: 2020-09-02
Publication date: 2020-11-10

Abstract

The invention discloses an anti-theft connecting structure, an anti-theft connecting device and a hub locking anti-theft device, wherein the anti-theft connecting structure comprises a lock cylinder, a lock shell, a screw, a locked piece and a fixing piece; the lock core comprises an unlocking outer joint and a telescopic transmission piece; the outside of the external joint of unblanking is equipped with the groove of unblanking, unblanks and is equipped with first concatenation inner chamber in the external joint: the screw rod is equipped with second concatenation chamber including unblanking nipple and threaded rod in the nipple, and the one end of threaded rod is connected with the inboard of unblanking the nipple, and the other end of threaded rod extends the setting to the inboard, and the threaded rod is connected with the mounting, locks on the mounting under the clamping action of the nipple of unblanking by the locking: the first splicing cavity and the second splicing cavity are in butt joint communication to form a switch connecting cavity; the telescopic transmission piece is arranged in the switch connecting cavity. According to the anti-theft connecting structure, the telescopic transmission piece is arranged in the concave manner, so that the telescopic transmission piece cannot be clamped, screwed and disassembled through a tool on the outside, a locked piece is effectively protected, and the anti-theft connecting structure is prevented from being stolen.

Description

Anti-theft connection structure, anti-theft connection device and hub locking anti-theft device

Technical Field

The invention relates to an anti-theft device, in particular to an anti-theft connecting structure, an anti-theft connecting device and a hub locking anti-theft device.

Background

The automobile hub is an important component of automobile parts, and the quality of the hub directly influences automobile tires and a braking system. High-mix vehicle type in the market generally adopts the better alloy wheel hub of quality to improve the driving performance of car, simultaneously, alloy wheel hub's price also can be more expensive than ordinary steel wheel hub.

Because the wheel hub is located outside the automobile, the wheel hub is easy to steal by lawbreakers. In the prior art, in order to improve the anti-theft effect of the wheel hub, an anti-theft bolt with a special-shaped pattern is generally adopted to prevent the wheel hub from being easily detached and stolen, for example, the invention patent application with the application publication number of CN102654157A discloses a high-strength anti-theft connection structure for an automobile. However, such an anti-theft connection is too simple, has low imitation costs, and is easily damaged to steal the hub.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide an anti-theft connecting structure which has a good anti-theft effect and is difficult to imitate by an unlocking key.

A second object of the invention is to provide an anti-theft connection device.

A third object of the present invention is to provide a hub locking antitheft device.

The purpose of the invention is realized by the following technical scheme:

an anti-theft connecting structure is characterized by comprising a lock core, a lock shell, a screw, a locked part and a fixing part; the lock core is arranged in the inner cavity of the lock shell; the lock cylinder comprises an unlocking outer joint and a telescopic transmission piece; wherein the content of the first and second substances,

the outside of unblanking the external joint is equipped with the groove of lockinging that matches with the key, unblanks and is equipped with the opening in the external joint and towards inboard first concatenation inner chamber: the screw rod is including unblanking nipple and threaded rod, the nipple setting of unblanking is in lock shell, just it is equipped with the second concatenation chamber that the opening is towards the outside in the nipple to unblank, the one end of threaded rod is connected with the inboard of unblanking nipple, and the other end of threaded rod extends the setting to the inboard, the threaded rod with the mounting is connected, by the latch fitting in the clamping action of the nipple of unblanking locks on the mounting: first concatenation chamber and second concatenation chamber butt joint intercommunication form the switch and connect the chamber, the outer end in first concatenation chamber is equipped with the first screens portion that dysmorphism set up, the inner in second concatenation chamber is equipped with the second screens portion that dysmorphism set up:

the telescopic transmission part is arranged in the switch connecting cavity, the outer contour of the outer end of the telescopic transmission part is matched with the first clamping part, the outer contour of the inner end of the telescopic transmission part is matched with the second clamping part, and the telescopic transmission part is provided with an embedded magnet with the polarity opposite to that of the unlocking magnet on the key; when the locked piece and the fixed piece are in a locking state, the outer end of the telescopic transmission piece is separated from the first clamping part; when the locked piece and the fixing piece are in a detachable state, the outer end of the telescopic transmission piece is connected with the first clamping portion, and the inner end of the telescopic transmission piece is connected with the second clamping portion.

The working principle of the anti-theft connecting structure is as follows:

when the locked piece and the fixed piece are in a locking state, the outer end of the telescopic transmission piece is separated from the first clamping part; if adopt instrument such as unmatched key or pliers to the external joint of unblanking to press from both sides tight rotation this moment, the external joint of unblanking can only carry out the empty rotation of self alone, thereby can't drive the screw rod and rotate the realization by the unclamping of latch fitting, effectively avoids the bolt to be opened by accident. When the locked piece needs to be loosened, the key is correspondingly inserted into the unlocking groove, the unlocking magnet on the key and the embedded magnet on the telescopic transmission piece attract each other, so that the telescopic transmission piece moves outwards, the outer end of the telescopic transmission piece is connected with the first clamping portion in the first splicing cavity, the inner end of the telescopic transmission piece is connected with the second clamping portion in the second splicing cavity, and the unlocking outer joint, the telescopic transmission piece and the screw rod are connected together and can rotate simultaneously; then, the key is rotated by a wrench (ratchet wrench, torque wrench) or other tools, and the screw rod is driven to rotate under the clamping connection action of the first clamping part, the second clamping part and the telescopic transmission part, so that the screw rod is screwed out of the fixing part, and the locked part is loosened. When a locked part needs to be locked, the threaded rod is driven to rotate through the reverse rotation key so as to be connected with the fixing part, the locked part is locked on the fixing part under the clamping effect of the unlocking inner joint, after the key is pulled out, the telescopic transmission part is not attracted by the unlocking magnet on the key any more, and is reset under external force or other acting force to be separated from the first clamping part, so that the whole anti-theft connection structure is in a locking state again.

In a preferred embodiment of the present invention, the fixing member is provided with a threaded hole, and the threaded hole is arranged corresponding to the threaded rod.

In a preferred embodiment of the present invention, an elastic element is disposed between the telescopic driving member and the switch connection cavity, and an elastic force of the elastic element always urges the outer end of the telescopic driving member to be separated from the first positioning portion.

Preferably, the telescopic transmission part is provided with a limiting rod, one end of the limiting rod is connected with the telescopic transmission part, the other end of the limiting rod extends outwards, and the unlocking outer joint is provided with a transition through hole for the limiting rod to pass through; the elastic element is sleeved on the limiting rod, one end of the elastic element acts on the outer end of the first splicing cavity, and the other end of the elastic element acts on the inner end of the limiting rod.

In a preferred embodiment of the present invention, a sliding portion is provided between the first latching portion and the second latching portion in the switch connecting cavity, and the sliding portion is larger than an outer contour of the telescopic transmission member.

In a preferred embodiment of the present invention, the embedded magnet is a ring magnet embedded in the telescopic transmission member.

In a preferred embodiment of the present invention, the embedded magnet includes a plurality of magnetic strips, and the plurality of magnetic strips are distributed on the telescopic transmission member.

In a preferred embodiment of the present invention, the unlocking nipple includes a driving portion and a connecting portion, the connecting portion is disposed inside the driving portion, and the threaded rod is connected to the inside of the connecting portion; the outer contour of the driving part is larger than that of the connecting part, a limiting step is formed at the joint of the driving part and the connecting part, and the driving part is arranged in the lock shell.

An anti-theft connecting device is characterized by comprising the anti-theft connecting structure and a key; the key unlocking end is provided with an unlocking block matched with the unlocking groove, an unlocking magnet corresponding to the embedded magnet is arranged at the unlocking end of the key, and the magnetic poles of the unlocking magnet and the magnetic poles of the embedded magnet are opposite.

A hub locking anti-theft device is characterized by comprising the anti-theft connecting structure; the locked piece is a hub, the fixing piece is a hub disc, a threaded hole is formed in the hub disc, and a locking hole is formed in the hub; and the threaded rod of the anti-theft connection structure penetrates through the locking hole and then is connected with the threaded hole in the hub plate.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the anti-theft connecting structure, the telescopic transmission piece of the lock cylinder is arranged in the concave manner, so that the lock cylinder cannot be clamped, screwed and disassembled through pliers or other tools on the outside, a locked piece is effectively protected, and the lock cylinder is prevented from being stolen. In addition, through the setting of embedded magnet for flexible driving medium removes in switch connection chamber, and thus change the relation of connection of lock core, and then realize that the rotation of lock core loosens the screw rod, design benefit.

2. When the anti-theft bolt is in a locking state, the outer end of the telescopic transmission piece is separated from the first clamping part of the unlocking outer joint, and at the moment, even if pliers or other tools are used for clamping and violently rotating the unlocking outer joint, the unlocking outer joint can only independently perform self idle rotation, and cannot drive the screw rod to rotate so as to loosen a locked piece, so that the imitation difficulty of the key is improved, and the anti-theft performance is good; for example, when the lock cylinder is damaged by violence of the electric drill, when a drill bit of the electric drill abuts against the unlocking outer joint and drilling is carried out, the unlocking outer joint can rotate along with the drill bit, so that the drill bit cannot drill and damage the lock cylinder and the screw rod; or even if the connecting rod is welded on the unlocking outer connector, the bolt cannot be unscrewed by rotating the connecting rod, so that the hub cannot be detached.

3. The anti-theft connecting device has the advantages that the matching degree of the key and the lock cylinder is high, the imitation difficulty of the key is increased, and the key is difficult to be stolen.

4. The hub locking anti-theft device has good anti-theft effect, effectively prevents the hub from being stolen, and can stably lock the hub on the hub disc.

Drawings

Fig. 1-4 are schematic structural views of a first embodiment of an anti-theft connection structure and an anti-theft connection device of the present invention, wherein fig. 1 is a perspective view, fig. 2 is a sectional view, fig. 3 is a perspective view of an unlocking external joint, and fig. 4 is a perspective view of a screw.

Fig. 5-6 are schematic structural views illustrating that the threaded rod cannot be screwed in the anti-theft connection device of the present invention, wherein fig. 5 is a cross-sectional view illustrating that the support rod in the key is too long, which results in insufficient outward movement distance of the telescopic driving member, and fig. 6 is a cross-sectional view illustrating that the support rod in the key is too short, which results in excessive outward movement distance of the telescopic driving member, which results in no screwing.

Fig. 7-8 are schematic structural views of a first embodiment of the hub locking anti-theft device, wherein fig. 7 is a front view, and fig. 8 is an enlarged view of a in fig. 7.

Fig. 9-11 are schematic structural views of a second embodiment of the anti-theft connection structure and the anti-theft connection device of the present invention, wherein fig. 9 is a front view of the anti-theft connection structure, fig. 10 is a sectional view of a-a in fig. 9, and fig. 11 is a perspective view of a key.

Fig. 12 is a schematic sectional view of a third embodiment of the antitheft connection structure of the present invention.

Fig. 13 is a schematic cross-sectional view of a fourth embodiment of the antitheft connection structure and antitheft connection device of the present invention.

Fig. 14-15 are schematic cross-sectional views of a fifth embodiment of the anti-theft connection structure of the present invention.

Detailed Description

The present invention will be further described with reference to the following examples and drawings, but the embodiments of the present invention are not limited thereto.

Referring to fig. 1-6, the anti-theft connection structure of the present embodiment includes a lock core, a lock case 4, a screw, a locked component and a fixing component; the lock core is arranged in the inner cavity of the lock shell 4; the lock cylinder comprises an unlocking outer joint 7 and a telescopic transmission piece 18; wherein the content of the first and second substances,

the outside of the external joint 7 of unblanking is equipped with the groove of unblanking 8 that matches with key 3, unblanks and is equipped with the opening in the external joint 7 and towards inboard first concatenation inner chamber: the screw rod is including unblanking nipple and threaded rod 5, the nipple setting of unblanking is in lock shell 4 is interior, just it is equipped with the second concatenation chamber that the opening is towards the outside in the nipple to unblank, the one end of threaded rod 5 is connected with the inboard of unblanking the nipple, and the other end of threaded rod 5 is to the inboard extension setting, threaded rod 5 with the mounting is connected, by the latch fitting in the clamping action of unblanking the nipple locks on the mounting: first concatenation chamber and second concatenation chamber butt joint intercommunication form the switch and connect the chamber, the outer end in first concatenation chamber is equipped with the first screens portion 16 that dysmorphism set up, the inner in second concatenation chamber is equipped with the second screens portion 21 that dysmorphism set up:

the telescopic transmission piece 18 is arranged in the switch connecting cavity, the outer contour of the outer end of the telescopic transmission piece 18 is matched with the first clamping part 16, the outer contour of the inner end of the telescopic transmission piece 18 is matched with the second clamping part 21, and the embedded magnet 22 with the polarity opposite to that of the unlocking magnet 12 on the key 3 is arranged on the telescopic transmission piece 18; when the locked piece and the fixed piece are in a locking state, the outer end of the telescopic driving piece 18 is separated from the first clamping part 16; when the locked member and the fixed member are in the detachable state, the outer end of the telescopic transmission member 18 is connected to the first positioning portion 16, and the inner end of the telescopic transmission member 18 is connected to the second positioning portion 21.

Referring to fig. 2, an elastic element 24 is disposed between the telescopic driving member 18 and the switch connection cavity, and the elastic force of the elastic element 24 always urges the outer end of the telescopic driving member 18 to be separated from the first detent portion 16. Through the arrangement of the elastic element 24, the telescopic transmission member 18 is stably kept in the specified position of the switch connecting cavity in the locking state, and is ensured to be separated from the first clamping portion 16, so that the locking effect of the bolt is effectively ensured, and accidental loosening is avoided. During the loosening process, the unlocking magnet 12 in the key 3 and the embedded magnet 22 attract each other, and the telescopic transmission member 18 is moved outwards against the elastic force of the elastic element 24 so as to rotate and unscrew the threaded rod 5; when the bolt is required to be locked, the key 3 is directly pulled out, and the telescopic moving part automatically resets backwards under the action of elasticity, so that the threaded rod 5 is effectively locked. In this embodiment, the elastic element 24 is a spring.

Referring to fig. 2, 5 and 6, a limiting rod 9 is arranged on the telescopic transmission member 18, one end of the limiting rod 9 is connected with the telescopic transmission member 18, the other end of the limiting rod 9 extends outwards, and a transition through hole 15 for the limiting rod 9 to pass through is arranged on the unlocking outer joint 7; the elastic element 24 is sleeved on the limiting rod 9, and one end of the elastic element acts on the outer end of the first splicing cavity, and the other end of the elastic element acts on the inner end of the limiting rod 9. Through the arrangement of the limiting rod 9, on one hand, the installation and the position fixation of the elastic element 24 are facilitated, and the automatic resetting and locking of the telescopic transmission part 18 are facilitated through elasticity; on the other hand, when the threaded rod 5 is in the unclamped state, the telescopic transmission member 18 moves outwards under the action of the unlocking magnet 12 of the key 3, so that the outer end of the limiting rod 9 passes through the transition through hole 15 and then extends to the outer side of the unlocking outer joint 7, the supporting hole 14 with a certain depth can be formed in the unlocking end face of the key 3, the outer end of the limiting rod 9 is inserted into the supporting hole 14, the insertion depth of the limiting rod 9 is limited, the outward movement distance of the telescopic transmission member 18 is limited, the outer end and the inner end of the telescopic transmission member 18 are effectively ensured to be connected with the first clamping portion 16 and the second clamping portion 21 respectively, and the screw is driven to rotate. In addition, the arrangement of the limiting rod 9 improves the matching precision of the key 3, is difficult to imitate unlocking of the key 3 and improves the anti-theft effect; specifically, if the support hole 14 in the key 3 is too deep, the distance that the telescopic transmission member 18 moves outward is too large, so that the rear end of the telescopic transmission member 18 cannot be connected to the second detent portion 21 and the screw cannot be unscrewed (see fig. 6); if the support hole 14 in the key 3 is too shallow, the outward movement of the telescopic drive member 18 is insufficient, so that the outer end of the telescopic drive member 18 cannot be connected to the first detent 16 and the screw cannot be loosened (see fig. 5). The rear end of the gag lever post 9 in this embodiment is provided with an enlargement 23 which facilitates the securing of the resilient element 24 (spring).

Referring to fig. 2 to 4, in the switch connection cavity, a sliding portion is provided between the first detent portion 16 and the second detent portion 21, and the sliding portion is larger than the outer contour of the telescopic transmission member 18. In this embodiment, the sliding portion is circularly arranged and includes a first circular portion 17 and a second circular portion 1, the first circular portion 17 is arranged in the first splicing cavity, the second circular portion 1 is arranged in the second splicing cavity, and the first circular portion 17 and the second circular portion 1 are in butt communication to form the sliding portion. Through the arrangement of the sliding part, the outer end part of the telescopic transmission part 18 is positioned in the sliding part in a locking state, at the moment, if the unlocking outer joint 7 is rotated under the action of external force, the telescopic transmission part 18 cannot be driven to rotate, the unlocking outer joint 7 can rotate more smoothly by self, the unlocking outer joint 7 cannot be contacted with the telescopic transmission part 18, the condition that the unlocking outer joint 7 slips is formed, and the screw can be effectively prevented from being unscrewed through the independent rotation of the unlocking outer joint 7; the sliding part in the embodiment is formed by butt-joint and communication of the first circular part 17 and the second circular part 1, so that the unlocking outer joint 7, the telescopic transmission piece 18 and the screw rod can be more compact, more space can be left in the first splicing cavity and the second splicing cavity to arrange the first clamping part 16 and the second clamping part 21, the telescopic transmission piece 18 in the loosening state can be fully connected with the unlocking outer joint 7 and the unlocking inner joint, and the rotation stress is facilitated to realize loosening. Of course, the runner can also be arranged completely in the first or second splice chamber.

Referring to fig. 2, the embedded magnet 22 is a ring magnet embedded in the telescopic transmission member 18. Correspondingly, the unlocking magnet 12 in the key 3 is also arranged in correspondence with the ring. The annular magnet is arranged, the magnetism of the magnet can be fully utilized, the telescopic transmission piece 18 is driven to move, and the structure is simple. The unlocking groove 8 in this embodiment is a pattern-type profile. In addition, in the lock shell 4, a lock cylinder retainer ring 6 is arranged outside the unlocking outer joint 7.

With reference to fig. 1-4, the unlocking nipple comprises a driving portion 19 and a connecting portion 20, the connecting portion 20 being arranged inside the driving portion 19, the threaded rod 5 being connected inside the connecting portion 20; the outer contour of the driving portion 19 is larger than that of the connecting portion 20, a limit step is formed at the joint of the driving portion 19 and the connecting portion 20, and the driving portion 19 is arranged in the lock case 4. In this embodiment, the second splice chamber is disposed within the drive section 19. Through setting up such nipple of unblanking, be convenient for be connected with lock shell 4, realize the screw rod and lock core and lock shell 4's cooperation installation to realize locking and loosening rotation to the screw rod.

Referring to fig. 1 and 2, the inner end surface of the connecting portion 20 is tapered. Therefore, the inner side end face of the connecting part 20 arranged outside the lock shell 4 can be matched with the mounting hole in the hub 25, and the locking effect of the hub 25 and the hub disc 26 is improved.

Referring to fig. 1 to 4, the working principle of the anti-theft connection structure of the present embodiment is as follows:

when the locked piece and the fixed piece are in a locking state, the outer end of the telescopic driving piece 18 is separated from the first clamping part 16; if adopt tools such as unmatched key 3 or pliers to the external joint 7 of unblanking to press from both sides tight rotation this moment, the external joint 7 of unblanking can only carry out the empty rotation of self alone, thereby can't drive the screw rod and rotate the realization by the unclamping of latch fitting, effectively avoids the bolt to be opened by accident. When the locked piece needs to be released, the key 3 is correspondingly inserted into the unlocking groove 8, the unlocking magnet 12 on the key 3 and the embedded magnet 22 on the telescopic transmission piece 18 attract each other, so that the telescopic transmission piece 18 moves outwards, the outer end of the telescopic transmission piece 18 is connected with the first clamping part 16 in the first splicing cavity, the inner end of the telescopic transmission piece 18 is connected with the second clamping part 21 in the second splicing cavity, and the unlocking outer joint 7, the telescopic transmission piece 18 and the screw rod are connected together and can rotate simultaneously; then, the key 3 is turned by a wrench (ratchet wrench, torque wrench) or other tool to rotate the screw rod under the clamping connection action of the first clamping portion 16, the second clamping portion 21 and the telescopic transmission member 18, so as to screw the screw rod out of the fixing member and loosen the locked member. When a locked part needs to be locked, the key 3 is rotated reversely, the threaded rod 5 is driven to rotate so as to be connected with the fixing part, the locked part is locked on the fixing part under the clamping action of the unlocking inner joint, after the key 3 is pulled out, the telescopic transmission part 18 is not attracted by the unlocking magnet 12 on the key 3 any more, and is reset under external force or other acting force to be separated from the first clamping part 16, so that the whole anti-theft connecting structure is in a locking state again.

Referring to fig. 1-2, the anti-theft connection device of the present embodiment includes the anti-theft connection structure and a key 3; the unlocking end part of the key 3 is provided with an unlocking block 11 matched with the unlocking groove 8, the unlocking end part of the key 3 is provided with an unlocking magnet 12 corresponding to the embedded magnet 22, and the magnetic poles of the unlocking magnet 12 and the embedded magnet 22 are opposite.

Referring to fig. 1 and 2, the key 3 is provided at an outer end thereof with a screw-fitting hole 10, and the screw-fitting hole 10 is formed in a polygonal shape. In this embodiment, the screw-fitting hole 10 is rectangular. Through the arrangement of the screwing matching hole 10, when the bolt is loosened for screwing disassembly, the screwing tool is convenient to be installed with the key 3 in a matching mode, so that the key 3 is driven to rotate, and the bolt is loosened. In addition, a screwing connector extending outwards can be arranged at the outer end of the key 3, and the screwing connector can be formed by a hexagonal bolt head or other special-shaped heads so as to be screwed by an external hexagonal wrench during disassembly.

Referring to fig. 2, a support hole 14 is further formed at the unlocking end of the key 3, and the support hole 14 is arranged corresponding to the limiting column 34; in a detachable state, when the limiting column 34 moves to the bottom of the supporting hole 14, the outer end of the telescopic transmission member 18 is connected to the first positioning portion 16, and the inner end of the telescopic transmission member 18 is connected to the second positioning portion 21. In this embodiment, a support rod 13 is further disposed in the support hole 14, and the length of the support rod 13 is set to limit the moving distance of the support column, so as to limit the position of the telescopic transmission member 18.

Referring to fig. 7-8, the hub locking anti-theft device of the present embodiment includes the anti-theft connection structure; the locked part is a hub 25, the fixed part is a hub plate 26, a threaded hole 27 is formed in the hub plate 26, a locking hole 28 is formed in the hub 25, and the threaded hole 27 corresponds to the threaded rod 5; the threaded rod 5 of the anti-theft connection structure passes through the locking hole 28 and then is connected with the threaded hole 27 on the hub plate 26.

Example 2

Referring to fig. 9 to 11, the present embodiment is different from embodiment 1 in that, in the anti-theft connection structure, the embedded magnet 22 includes a plurality of magnetic strips 35, and the plurality of magnetic strips 35 are uniformly distributed on the telescopic transmission member 18. The magnetic strips 35 in this embodiment are disposed in a circular manner around the axis of the telescopic transmission member 18, or may be disposed in a random manner in a triangular, rectangular or other shape. In the anti-theft connection device, a plurality of unlocking keys 12 on the key 3 are also arranged and are in one-to-one correspondence with the magnetic strips 35. Can set up the magnetic pole of a plurality of magnetic stripes 35 at random, form the magnetic switch of different combinations, need correspond the magnet 12 of unblanking that sets up the same quantity and position on the key 3 this moment, and every magnet 12's of unblanking magnetic pole need and a plurality of magnetic stripe 35 one-to-one, just so can be through unblanking magnet 12 on the key 3 evenly effectively with a plurality of magnetic stripe 35 cooperations on the flexible driving medium 18 inhale mutually, realize the outside removal of flexible driving medium 18, so complicated changeable magnetic switch, be favorable to improving the imitation degree of difficulty of key 3, avoid unexpected the screw rod of unclamping, thereby automobile wheel hub 25's theftproof function has been improved. In this embodiment, there are 6 magnetic strips 35 on the telescopic transmission member 18 (different numbers of magnetic strips may be used according to actual conditions), so that there are 64 magnetic pole distribution patterns of the magnetic strips 35, and if one unlocking magnet 12 in the key 3 cannot cooperate with one of the magnetic strips 35 to attract each other, the attraction force between the unlocking magnet 12 and the magnetic strip 35 on the key 3 is not enough to overcome the acting force of the elastic element or the reset magnet, so that the hub cannot be loosened by screwing the threaded rod. Meanwhile, the outline of the unlocking groove 8 on the unlocking outer joint 7 can be randomly set, the moving distance of the telescopic transmission piece 18 also needs to be set according to certain requirements, the depth of the supporting hole 10 on the matched key 3 needs to be correspondingly matched to realize screwing and loosening of the hub, a plurality of anti-theft bolts are installed between one automobile hub 25 and the hub disc 26, the related configuration of each anti-theft bolt can be different from one another, therefore, the probability of loosening all anti-theft bolts under the condition is very small, and the anti-theft performance is very high.

Example 3

Referring to fig. 12, the present embodiment is different from embodiment 1 in that in the anti-theft connection structure, a reset magnet 33 is disposed at an inner end portion of the unlocking nipple (or on an inner side wall of the second splice chamber), and the reset magnet 33 has a magnetic pole opposite to that of an inner end of the embedded magnet 22; meanwhile, the outer end face of the telescopic transmission member 18 is provided with the limiting column 34 protruding outwards, so that the distance of the telescopic transmission member 18 moving outwards can be limited, and when the limiting column 34 abuts against the outer end face of the first splicing cavity, the telescopic transmission member 18 is connected with the first clamping portion 16 and the second clamping portion 21 simultaneously, and therefore unlocking operation is achieved. In the antitheft coupling device, the magnetic attraction force of the unlocking magnet 12 of the key 3 is larger than that of the return magnet 33. In this way, in the locked state, the reset magnet 33 and the embedded magnet 22 attract each other, so that the telescopic transmission member 18 is tightly attracted to one end close to the second clamping portion 21, thereby ensuring that the telescopic transmission member 18 is separated from the first clamping portion 16, and ensuring the locked state; in the released state, the unlocking magnet 12 and the embedded magnet 22 attract each other because the magnetic attraction force of the unlocking magnet 12 on the key 3 is larger than that of the reset magnet 33, so that the telescopic transmission member 18 is attracted and moved outward from the end close to the second clamping portion 21, so that the telescopic transmission member 18 is connected with the first clamping portion 16 and the second clamping portion 21, finally, the unlocking is realized through rotation, and after the key 3 is pulled out, the telescopic transmission member 18 is moved inward by itself to be reset under the action of the reset magnet 33.

Example 4

Referring to fig. 13, the present embodiment is different from embodiment 1 in that in the anti-theft connection structure, the other end of the key 3 is further provided with a locking magnet 2, and the magnetic pole of the locking magnet 2 is the same as that of the embedded magnet 22. When the locked piece is unlocked, the key 3 attracts the telescopic transmission piece 18 to move outwards through the unlocking magnet 12 on the unlocking end face so as to rotate and unlock the threaded rod 5; when the locked member is locked, the retractable transmission member 18 needs to be reset, and when the retractable transmission member 18 is separated from the first positioning portion 16, the locking magnet 2 at the other end of the key 3 is attached to the unlocking outer joint 7, so that the locking magnet 2 and the embedded magnet 22 repel each other, the retractable transmission member 18 is moved inwards to be reset, and the separation from the first positioning portion 16 is ensured.

Example 5

Referring to fig. 14 to 15, the present embodiment is different from embodiment 1 in that in the anti-theft connection structure, one end of the elastic element 24 is connected to the outside of the telescopic driving member 18, and the other end is connected to the outer end of the first splicing chamber, and the elastic force of the elastic element 24 always urges the telescopic driving member 18 to be separated from the first catching portion 16. Alternatively, one end of the elastic element 24 is connected to the inner side of the telescopic driving member 18, and the other end is connected to the inner end of the second splicing chamber, and the elastic force of the elastic element 24 always urges the telescopic driving member 18 to separate from the first positioning portion 16. When the locked piece is released, the unlocking magnet 12 on the key 3 overcomes the elastic force of the elastic element 24, so that the telescopic driving piece 18 moves outwards, and the telescopic driving piece 18 is ensured to be simultaneously connected with the first clamping part 16 and the second clamping part 21, thereby realizing the rotary release; when the locked piece needs to be locked, after the key 3 is pulled out, the telescopic driving member 18 moves inwards to reset under the action of the elastic force of the elastic element 24 and is separated from the first clamping part 16.

The present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents and are included in the scope of the present invention.

Claims

1. An anti-theft connecting structure is characterized by comprising a lock core, a lock shell, a screw, a locked part and a fixing part; the lock core is arranged in the inner cavity of the lock shell; the lock cylinder comprises an unlocking outer joint and a telescopic transmission piece; wherein the content of the first and second substances,

2. The anti-theft connecting structure according to claim 1, wherein the fixing member is provided with a threaded hole which is provided in correspondence with the threaded rod.

3. The antitheft connection structure according to claim 1 or 2, wherein an elastic member is provided between the telescopic driving member and the switch connection cavity, and an elastic force of the elastic member always urges the outer end of the telescopic driving member to be separated from the first retaining portion.

4. The anti-theft connection structure according to claim 3, wherein the telescopic transmission member is provided with a limiting rod, one end of the limiting rod is connected with the telescopic transmission member, the other end of the limiting rod extends outwards, and the unlocking outer joint is provided with a transition through hole for the limiting rod to pass through; the elastic element is sleeved on the limiting rod, one end of the elastic element acts on the outer end of the first splicing cavity, and the other end of the elastic element acts on the inner end of the limiting rod.

5. The antitheft connection structure according to claim 1, wherein a sliding portion is provided between the first detent portion and the second detent portion in the switch connection chamber, the sliding portion being larger than an outer contour of the telescopic transmission member.

6. The antitheft connection structure of claim 1, wherein the embedded magnet is a ring magnet embedded in the telescopic transmission member.

7. The anti-theft connection structure according to claim 1, wherein the embedded magnet comprises a plurality of magnetic strips disposed on the telescopic transmission member in a distributed manner.

8. The anti-theft connection according to claim 1, characterized in that said unlocking nipple comprises a driving portion and a connecting portion, said connecting portion being arranged inside the driving portion, said threaded rod being connected inside said connecting portion; the outer contour of the driving part is larger than that of the connecting part, a limiting step is formed at the joint of the driving part and the connecting part, and the driving part is arranged in the lock shell.

9. An antitheft connection device comprising the antitheft connection structure of any one of claims 1 to 8 and a key; the key unlocking end is provided with an unlocking block matched with the unlocking groove, an unlocking magnet corresponding to the embedded magnet is arranged at the unlocking end of the key, and the magnetic poles of the unlocking magnet and the magnetic poles of the embedded magnet are opposite.

10. A hub locking antitheft device comprising the antitheft attachment structure of any one of claims 1 to 8; the locked piece is a hub, the fixing piece is a hub disc, a threaded hole is formed in the hub disc, and a locking hole is formed in the hub; and the threaded rod of the anti-theft connection structure penetrates through the locking hole and then is connected with the threaded hole in the hub plate.