Anti-theft lock capable of idling

Abstract

The invention discloses an anti-theft lock capable of idling, and relates to the technical field of anti-theft locks.The anti-theft lock capable of idling comprises a lock shell and a key, the two ends of the lock shell are rotationally connected with lock liners, the two lock liners are provided with inserting holes for the key to be inserted, and the lock shell is rotationally connected with a lock tongue; the shielding assembly is arranged at the end of the lock cylinder and used for shielding and protecting the interior of the inserting hole, and a rotating cylinder is rotationally connected to the lock shell. In the using process of the anti-theft lock, through mutual cooperation of the rotating assembly, the limiting assembly, the unlocking assembly and other components, normal anti-theft protection use can be achieved, idling can be achieved after an abnormal key is inserted into the lock cylinder, the situation that parts in the lock are damaged due to violent rotation after the abnormal key is inserted is avoided, and the anti-theft lock is safe and reliable. And in the rotating process of the lock cylinder, due to the fact that the plug pin and the connecting hole are in a disconnected state, the lock tongue is not driven to rotate at the moment, and the anti-theft effect is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of anti-theft locks, in particular to an anti-theft lock capable of idling. Background Art

[0002] Anti-theft locks are devices used to prevent illegal opening of doors, drawers, cabinets and other objects. They increase the difficulty of unlocking and ensure the safety of items through specific mechanical structures, electronic components or other technical means.

[0003] During the anti-theft process, the anti-theft lock uses internal mechanical components to prevent abnormal keys from being inserted or from rotating after being inserted. During this anti-theft protection process, the internal components of the anti-theft lock are easily damaged due to the violent action of the operator, affecting the continued use of the anti-theft lock during the anti-theft protection process. For this reason, we propose an anti-theft lock that can rotate idly. Summary of the invention

[0004] The purpose of the present invention is to provide an anti-theft lock capable of idling, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an idling anti-theft lock, comprising a lock shell and a key, wherein both ends of the lock shell are rotatably connected with lock cores, two groups of lock cores are provided with insertion holes for key insertion, the lock shell is rotatably connected with a lock tongue, and also comprises a shielding component arranged at the end of the lock core for shielding and protecting the inside of the insertion hole, the lock shell is rotatably connected with a rotating cylinder, the rotating cylinder is symmetrically arranged between the two groups of lock cores, the lock tongue is fixed to the outside of the rotating cylinder by sleeve-mounting through a mounting hole, the rotating cylinder is provided with a positioning component for positioning the lock tongue after sleeve-mounting, the lock core is provided with a rotating component for rotating the rotating cylinder and a limiting component for limiting the position during rotation, and the key is provided with an unlocking component for assisting the limiting component in unlocking.

[0006] Preferably, the rotating assembly includes a mounting groove opened on the outside of the lock core, a slide plate is slidably connected to the inside of the mounting groove, a latch for transmission is fixed on the slide plate, a linkage cylinder is fixed to one side of the rotating cylinder, a connecting hole for connecting with the latch is opened at the end of the linkage cylinder, and an extrusion spring for squeezing and pushing the slide plate is arranged inside the mounting groove.

[0007] Preferably, there are multiple groups of the limiting components, and the multiple groups of limiting components are equidistantly arranged on the lock core.

[0008] Preferably, the limiting assembly includes a V-shaped plate fixed to the lower end of the latch, a slide groove is provided on the lock core, and the interior of the slide groove is slidably connected with multiple groups of blades for blocking one side of the V-shaped plate.

[0009] Preferably, the unlocking assembly includes a V-shaped groove on the blade for the V-shaped plate to pass through, the blade is provided with a through hole for the auxiliary key to pass through, the key is provided with multiple sets of unlocking grooves, the inside of the through hole is fixed with a transmission block for sliding inside the unlocking groove, and the rotating cylinder is provided with a reset assembly for assisting the limiting assembly to be used for limiting again.

[0010] Preferably, the reset assembly includes a transmission cylinder slidably connected to the inner side of the rotating cylinder, a connecting spring for connecting to the transmission cylinder is arranged inside the rotating cylinder, and a pushing block for resisting and transmitting against the transmission cylinder is fixed on the latch.

[0011] Preferably, the positioning assembly is symmetrically arranged in two groups on both sides of the locking tongue, and the positioning assembly includes an annular groove opened on the outside of the rotating cylinder, and the annular groove is provided with a C-shaped clamping ring for abutting against one side of the locking tongue after being sleeved.

[0012] Preferably, the shielding assembly includes two groups of symmetrically arranged fixing plates fixed to the front end of the lock core, and the opposite sides of the two groups of fixing plates are connected with shielding plates through elastic components. The two groups of shielding plates are resisted against each other under the elastic force of the elastic component and are located on the front side of the socket.

[0013] Preferably, the shielding plate is provided with an inclined surface for abutting against the front end of the key for transmission.

[0014] Preferably, the elastic component includes multiple groups of sleeves fixed on the fixed plate, the sleeves are slidably connected with a sliding rod, one end of the sliding rod is fixed to the baffle plate, and the outer side of the sleeve is provided with a mounting spring, and the two ends of the mounting spring are respectively set to resist the fixed plate and the baffle plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] During the use of the anti-theft lock of the present invention, through the mutual cooperation of the rotating assembly, the limiting assembly and the unlocking assembly and other components, it can not only be used for normal anti-theft protection, but also can realize the idle rotation of the abnormal key after the insertion of the lock core, thereby avoiding the damage of the internal parts of the lock due to the violent rotation of the abnormal key after insertion; and during the rotation of the lock core, since the pin and the connecting hole are in a disconnected state, the lock tongue is not driven to rotate at this time, thereby achieving the anti-theft effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall appearance structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the positional relationship between the shielding component and the lock core of the present invention;

[0019] Figure 3It is a schematic diagram of the structure of the elastic component of the present invention;

[0020] Figure 4 It is a schematic diagram of the structure of the positioning component of the present invention;

[0021] Figure 5 It is a schematic diagram of the position relationship between the key and the blade of the present invention;

[0022] Figure 6 It is a schematic diagram of the rotating drum structure of the present invention;

[0023] Figure 7 It is a schematic diagram of the unlocking component and the resetting component structure of the present invention;

[0024] Figure 8 It is a schematic diagram of the structure of the rotating assembly of the present invention;

[0025] Fig. 9 It is a schematic diagram of the state after the plug of the present invention is inserted into the connecting hole;

[0026] Fig.10 It is a schematic diagram of the blade structure of the present invention;

[0027] Fig.11 It is a schematic diagram of the state before the latch of the present invention is inserted into the connecting hole.

[0028] In the figure: 101-lock housing; 102-lock tongue; 103-jack; 104-key; 105-lock core; 201-fixed plate; 202-shielding plate; 203-inclined surface; 301-sleeve; 302-slide rod; 303-installing spring; 4-rotating cylinder; 501-annular groove; 502-C-type snap ring; 601-installing groove; 602-slide plate; 603-latch pin; 604-extrusion spring; 605-linkage cylinder; 606-connecting hole; 701-V-plate; 702-slide groove; 703-blade; 801-V-groove; 802-unlocking groove; 803-perforation; 804-transmission block; 901-transmission cylinder; 902-connecting spring; 903-pushing block. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example 1

[0031] See also Figure 1-Figure 11, an idling anti-theft lock shown in the figure includes a lock shell 101 and a key 104, lock cores 105 are rotatably connected at both ends of the lock shell 101, two sets of lock cores 105 are provided with insertion holes 103 for inserting the key 104, a lock tongue 102 is rotatably connected to the lock shell 101, and also includes a shielding component arranged at the end of the lock core 105 for shielding and protecting the inside of the insertion hole 103, a rotating cylinder 4 is rotatably connected to the lock shell 101, the rotating cylinder 4 is symmetrically arranged between the two sets of lock cores 105, the lock tongue 102 is fixed to the outer side of the rotating cylinder 4 through the mounting hole, a positioning component for positioning the lock tongue 102 after sleeved is arranged on the rotating cylinder 4, a rotating component for rotating the rotating cylinder 4 and a limiting component for limiting the position during the rotation are arranged on the lock core 105, and an unlocking component for assisting the limiting component to unlock is arranged on the key 104;

[0032] It should be noted here that during the use of the anti-theft lock, through the mutual cooperation of the rotating assembly, the limit assembly and the unlocking assembly, it can not only be used for normal anti-theft protection, but also realize the idle rotation of the abnormal key 104 after being inserted into the lock core 105, thereby avoiding the damage of the internal parts of the lock due to the violent rotation of the abnormal key 104 after insertion, and during the rotation of the lock core 105, since the latch pin 603 and the connecting hole 606 are in a disconnected state, the lock tongue 102 is not driven to rotate at this time, thereby achieving an anti-theft effect.

[0033] Preferably, the rotating assembly includes a mounting groove 601 provided on the outer side of the lock core 105, a slide plate 602 is slidably connected inside the mounting groove 601, a latch 603 for inserting and transmitting is fixed on the slide plate 602, a linkage cylinder 605 is fixed on one side of the rotating cylinder 4, a connecting hole 606 for inserting and connecting with the latch 603 is provided at the end of the linkage cylinder 605, and an extrusion spring 604 for extruding and pushing the slide plate 602 is provided inside the mounting groove 601;

[0034] It should be noted here that: when the key 104 used is correct, one end of the pin 603 is inserted into the connecting hole 606 of the linkage cylinder 605 through transmission. After the key 104 is inserted, the key 104 is rotated. During the rotation of the key 104, the lock core 105 is driven to rotate. During the rotation of the lock core 105, the linkage cylinder 605 and the rotating cylinder 4 are driven to rotate through the insertion connection between the pin 603 and the connecting hole 606 on the linkage cylinder 605. The rotation of the rotating cylinder 4 drives the lock tongue 102 to rotate, thereby further realizing the opening and closing of the anti-theft lock.

[0035] Preferably, there are multiple groups of limiter components, and the multiple groups of limiter components are arranged equidistantly on the lock core 105;

[0036] It should be noted here that the anti-theft effect is ensured by using multiple sets of limit components.

[0037] Preferably, the limiting assembly includes a V-shaped plate 701 fixed to the lower end of the latch 603, a slide groove 702 is provided on the lock core 105, and a plurality of blades 703 are slidably connected inside the slide groove 702 for resisting and blocking one side of the V-shaped plate 701;

[0038] It should be noted here that the blades 703 facilitate the V-shaped plate 701 to be limited and blocked.

[0039] Preferably, the unlocking assembly includes a V-shaped groove 801 formed on the blade 703 for the V-shaped plate 701 to pass through, a through hole 803 formed on the blade 703 for the auxiliary key 104 to pass through, a plurality of sets of unlocking grooves 802 formed on the key 104, a transmission block 804 for sliding inside the unlocking groove 802 is fixed inside the through hole 803, and a reset assembly for assisting the limiting assembly to limit again is provided on the rotating cylinder 4;

[0040] It should be noted here that: during the process of inserting the key 104, through the counteracting transmission effect of the unlocking groove 802 and the transmission block 804 on the through hole 803, each group of blades 703 is driven to slide inside the slide groove 702 under force, and through the sliding of each group of blades 703, the V-shaped grooves 801 on each group of blades 703 are all on the movement trajectory of the V-shaped plate 701. At this time, each group of blades 703 no longer blocks and limits the V-shaped plate 701 and the latch 603.

[0041] Preferably, the reset assembly includes a transmission cylinder 901 slidably connected to the inner side of the rotating cylinder 4, a connecting spring 902 for connecting the transmission cylinder 901 is arranged inside the rotating cylinder 4, and a push block 903 for resisting and transmitting with the transmission cylinder 901 is fixed on the latch 603;

[0042] It should be noted here that: the key 104 is inserted into the lock core 105 through the insertion hole 103. During the insertion process, the front end of the key 104 is abutted against the transmission cylinder 901. During the abutment process, the transmission cylinder 901 is pushed to move toward the inside of the rotating cylinder 4 and the connecting spring 902 is deformed to generate elastic force. In the process of pulling out the key 104, the elastic force of the connecting spring 902 and the abutment between the transmission cylinder 901 and the pushing block 903 reset the latch 603 and the slide plate 602. After the slide plate 602 and the latch 603 are reset, the V-shaped plate 701 is abutted and blocked by the staggered blades 703, which is convenient for subsequent anti-theft protection use.

[0043] Preferably, two groups of positioning components are symmetrically arranged on both sides of the locking tongue 102, and the positioning components include an annular clamping groove 501 opened on the outer side of the rotating cylinder 4, and a C-shaped clamping ring 502 is clamped on the annular clamping groove 501 for abutting against one side of the locking tongue 102 after being sleeved;

[0044] It should be noted here that: after the locking tongue 102 is installed, the two sets of C-shaped clamping rings 502 are respectively clamped and installed on the annular clamping groove 501 to position the installed locking tongue 102 against each other.

[0045] Preferably, the shielding assembly includes two sets of fixed plates 201 symmetrically arranged on the front end of the lock core 105, and the two sets of fixed plates 201 are connected to shielding plates 202 on opposite sides through elastic components. The two sets of shielding plates 202 are against each other under the elastic force of the elastic components and are located in front of the plug hole 103;

[0046] It should be noted here that: after the key 104 is pulled out, the two groups of shielding plates 202 are pushed towards each other and abut against each other through the elastic component. After abutting against each other, the two groups of shielding plates 202 are located in front of the socket 103. The socket 103 is shielded and protected by the two groups of shielding plates 202, thereby improving the effect of shielding and preventing dust inside the lock.

[0047] Preferably, the shielding plate 202 is provided with an inclined surface 203 for abutting against the front end of the key 104 for transmission;

[0048] It should be noted here that: when the key 104 is inserted into the socket 103, the front end of the key 104 abuts against the inclined surfaces 203 on the two sets of shielding plates 202, and during the abutment, the two sets of shielding plates 202 are pushed to move away from each other.

[0049] Preferably, the elastic component includes a plurality of sleeves 301 fixed on the fixed plate 201, a slide bar 302 is slidably connected to the sleeve 301, one end of the slide bar 302 is fixed to the shielding plate 202, and a mounting spring 303 is sleeved on the outer side of the sleeve 301, and the two ends of the mounting spring 303 are respectively set against the fixed plate 201 and the shielding plate 202;

[0050] It should be noted here that: the sleeve 301 and the slide rod 302 are used to assist the shielding plate 202 in its telescopic movement after being stressed, and the spring 303 is installed to facilitate squeezing and pushing the shielding plate 202 .

[0051] In this scheme: an idling anti-theft lock comprises the following steps:

[0052] When the anti-theft lock is in use, when the key 104 is used correctly, the key 104 is inserted into the interior of the lock core 105 through the insertion hole 103. During the insertion process, the front end of the key 104 is abutted against the transmission cylinder 901. During the abutment process, the transmission cylinder 901 is pushed to move toward the inside of the rotating cylinder 4 and the connecting spring 902 is deformed to generate elastic force. During the insertion of the key 104, the unlocking groove 802 and the transmission block 804 on the perforation 803 are abutted against each other, so that each group of blades 703 is forced to slide inside the slide groove 702. Through the sliding of each group of blades 703, the V-shaped grooves 801 on each group of blades 703 are all on the movement trajectory of the V-shaped plate 701. At this time, each group of blades 703 no longer blocks and limits the V-shaped plate 701 and the latch 603. Through the elastic force of the extrusion spring 604, the slide plate 602 and the latch 603 are pushed to move. During the movement of the latch 603, one end of the latch 603 is inserted into the connecting hole 606 of the linkage cylinder 605. After the key 104 is inserted, the key 104 is rotated. During the rotation of the key 104, the lock core 105 is driven to rotate. During the rotation of the lock core 105, the connecting cylinder 605 and the rotating cylinder 4 are driven to rotate through the plug-in connection between the latch 603 and the connecting hole 606 on the linkage cylinder 605. The rotation of the rotating cylinder 4 drives the lock tongue 102 to rotate, thereby further realizing the opening and closing of the anti-theft lock. In the process of pulling out the key 104, the latch 603 and the slide plate 602 are reset through the elastic force of the connecting spring 902 and the resistance of the transmission cylinder 901 and the pushing block 903. After the slide plate 602 and the latch 603 are reset, the V-shaped plate 701 is resisted and blocked by the staggered blades 703, so as to facilitate the subsequent anti-theft protection use.

[0053] When the key 104 is abnormal, during the insertion of the key 104 through the insertion hole 103, the transmission blocks 804 on each group of perforations 803 interact with the unlocking grooves 802 on the abnormal key 104, so that each group of blades 703 slides, but the V-shaped grooves 801 on each group of blades 703 are still arranged in a staggered state. At this time, the V-shaped plate 701 is still kept to limit the relative position, so that the abnormal key 104 cannot make the latch pin 603 and the connecting hole 606 on the linkage cylinder 605 be plugged and connected during the insertion process. At this time, rotating the key 104 can also drive the lock core 105 to rotate, so that the abnormal key 104 can be inserted into the lock core 105 and can rotate idly, thereby avoiding damage to the internal parts of the lock caused by the violent rotation of the abnormal key 104 after insertion. In addition, during the rotation of the lock core 105, since the latch pin 603 and the connecting hole 606 are in a disconnected state, the lock tongue 102 is not driven to rotate, thereby achieving an anti-theft effect.

[0054] When the key 104 is inserted into the socket 103, the front end of the key 104 abuts against the inclined surfaces 203 on the two sets of shielding plates 202. During the abutment, the two sets of shielding plates 202 are pushed to move away from each other. After the key 104 is pulled out, the two sets of shielding plates 202 are pushed toward each other and abut against each other through the elastic component. After the abutment, the two sets of shielding plates 202 are located at the front side of the socket 103. The socket 103 is shielded and protected by the two sets of shielding plates 202, thereby improving the effect of shielding and preventing dust inside the lock.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An idling anti-theft lock, comprising: A lock shell (101) and a key (104), wherein two ends of the lock shell (101) are rotatably connected to lock cores (105), two sets of lock cores (105) are provided with insertion holes (103) for inserting the key (104), and a lock tongue (102) is rotatably connected to the lock shell (101); It is characterized by further comprising: A shielding component is arranged at the end of the lock core (105) for shielding and protecting the inside of the insertion hole (103); a rotating cylinder (4) is rotatably connected to the lock shell (101); the rotating cylinder (4) is symmetrically arranged between the two groups of lock cores (105); the lock tongue (102) is fixed to the outer side of the rotating cylinder (4) through a mounting hole; the rotating cylinder (4) is provided with a positioning component for positioning the lock tongue (102) after being sleeved; the lock core (105) is provided with a rotating component for rotating the rotating cylinder (4) and a limiting component for limiting the position during the rotation process; and the key (104) is provided with an unlocking component for assisting the unlocking of the limiting component.

2. The idling anti-theft lock according to claim 1, characterized in that: The rotating assembly includes a mounting groove (601) provided on the outside of the lock core (105), a slide plate (602) is slidably connected to the inside of the mounting groove (601), a latch (603) for plugging and transmitting is fixed on the slide plate (602), a linkage cylinder (605) is fixed on one side of the rotating cylinder (4), a connecting hole (606) for plugging and connecting with the latch (603) is provided at the end of the linkage cylinder (605), and an extrusion spring (604) for squeezing and pushing the slide plate (602) is provided inside the mounting groove (601).

3. The idling anti-theft lock according to claim 2, characterized in that: The position limiting components are provided in multiple groups, and the multiple groups of position limiting components are arranged equidistantly on the lock core (105).

4. The idling anti-theft lock according to claim 3, characterized in that: The limiting assembly comprises a V-shaped plate (701) fixed to the lower end of the latch (603), a slide groove (702) is provided on the lock core (105), and a plurality of blades (703) are slidably connected inside the slide groove (702) for resisting and blocking one side of the V-shaped plate (701).

5. The idling anti-theft lock according to claim 4, characterized in that: The unlocking assembly comprises a V-shaped groove (801) formed on the blade (703) for the V-shaped plate (701) to pass through, a through hole (803) formed on the blade (703) for the auxiliary key (104) to pass through, a plurality of sets of unlocking grooves (802) formed on the key (104), a transmission block (804) for sliding inside the unlocking groove (802) being fixed inside the through hole (803), and a reset assembly for assisting the limiting assembly in limiting again being provided on the rotating cylinder (4).

6. The idling anti-theft lock according to claim 5, characterized in that: The reset assembly comprises a transmission cylinder (901) slidably connected to the inner side of a rotating cylinder (4); a connecting spring (902) for connecting to the transmission cylinder (901) is arranged inside the rotating cylinder (4); and a pushing block (903) for resisting and transmitting with the transmission cylinder (901) is fixed on the latch (603).

7. The idling anti-theft lock according to claim 1, characterized in that: The positioning assembly is symmetrically arranged in two groups on both sides of the locking tongue (102), and the positioning assembly comprises an annular clamping groove (501) opened on the outside of the rotating cylinder (4), and a C-shaped clamping ring (502) is clamped on the annular clamping groove (501) for abutting against one side of the locking tongue (102) after being sleeved.

8. The idling anti-theft lock according to claim 1, characterized in that: The shielding assembly comprises two groups of fixed plates (201) fixed to the front end of the lock core (105) and arranged symmetrically with each other, and the two groups of fixed plates (201) are connected to shielding plates (202) on opposite sides through elastic components, and the two groups of shielding plates (202) are pressed against each other under the elastic force of the elastic component and are located in front of the insertion hole (103).

9. The idling anti-theft lock according to claim 8, characterized in that: The shielding plate (202) is provided with an inclined surface (203) for abutting against the front end of the key (104) for transmission.

10. The idling anti-theft lock according to claim 8, characterized in that: The elastic component comprises a plurality of sleeves (301) fixed on a fixed plate (201), a slide bar (302) being slidably connected to the sleeve (301), one end of the slide bar (302) being fixed to the shielding plate (202), an installation spring (303) being sleeved on the outer side of the sleeve (301), and two ends of the installation spring (303) being respectively arranged to abut against the fixed plate (201) and the shielding plate (202).

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