An anti-theft lock

Abstract

The present invention relates to an anti-theft lock, comprising a lock body and a lock rod, wherein the lock body is provided with a first lock tongue, a second lock tongue and a driving device, a locking slot is provided on the lock rod, a first slider is provided on the first lock tongue, a first spring is provided in the first slider, a second slider is provided on the second lock tongue, a second spring is provided in the second slider, when the driving device works to realize the first slider and the second slider move toward each other, the first lock tongue and the second lock tongue are separated from the locking slot, and the lock rod and the lock body are unlocked, the driving device works to realize the first slider and the second slider move away from each other, and the first lock tongue and the second lock tongue are reset, at this time, after the lock rod is inserted into the lock body, the top ends of the first lock tongue and the second lock tongue under the action of the first spring and the second spring can be placed in the locking slot to realize the locking of the lock rod and the lock body, and the insertion end of the first lock tongue inserted into the locking slot and the insertion end of the second lock tongue inserted into the locking slot are symmetrically arranged. By adopting the above technical scheme, when the lock body is hit hard, the lock rod can still be locked in the lock body to prevent the anti-theft lock from being pried.

Description

Technical Field

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

[0002] A helmet lock is a lock that prevents others from stealing your helmet when you are away from your motorcycle or electric vehicle. It can also secure your helmet through the lock to prevent it from falling and breaking.

[0003] The lock body is provided with a locking hole for inserting the locking rod into the lock body, a locking tongue is provided in the lock body, a first concave cavity for inserting the locking tongue is provided on the locking rod, the locking tongue is fixedly connected with a sensor, the sensor is arranged along the insertion direction of the locking rod into the lock body, and is located on the inner side of the first locking tongue, the sensing end of the sensor is lower than the tip of the tongue, when the locking rod is inserted into the lock cavity, the tip of the locking tongue touches the first concave cavity, and the sensing end of the sensor touches the protrusion of the head of the locking rod, and a driving component for driving the locking tongue to slide is provided in the lock body, wherein the driving component comprises a rotating shaft, a spring and a pin shaft, an installation cavity is provided on the lock tongue, the rotating shaft rotates and passes through the installation cavity, the spring is sleeved on the rotating shaft and is located in the installation cavity, and the two ends are respectively fixed in the installation cavity, the pin shaft is arranged in the radial direction of the rotating shaft, and the pin shaft is located between the two ends of the spring, and a motor for driving the rotating shaft to rotate is provided in the lock body.

[0004] The above technical solution has the following problems: since there is only one lock tongue in the lock body and it is inserted on one side of the lock rod, when the lock body is hit hard, the lock tongue in the lock body can be separated from the first cavity under the action of inertia, causing the lock rod to be separated from the lock cavity, and the anti-theft lock can be pried open. Summary of the invention

[0005] Purpose of the present invention: In order to overcome the defects of the prior art, the present invention provides an anti-theft lock, which can prevent the anti-theft lock from being pried when the lock body encounters a heavy blow while the locking rod is still locked in the lock body.

[0006] The technical solution of the present invention is as follows: an anti-theft lock comprises a lock body and a lock rod, wherein a first lock tongue is arranged in the lock body, a slot for inserting the first lock tongue is arranged on the lock rod, a first slider is arranged on the first lock tongue, a first spring is arranged in the first slider, after the lock rod is inserted into the lock body, the top end of the first lock tongue is placed in the slot under the action of the first spring to form a locking cooperation between the lock rod and the lock body, a driving device is arranged in the lock body, the driving device can drive the first spring to move, the movement of the first spring can drive the first slider and the first lock tongue to slide, so that the first lock tongue can be separated from the lock rod slot, that is, the lock rod and the lock body are unlocked, characterized in that a second lock tongue is arranged in the lock body, and a first lock tongue is arranged on the second lock tongue The second slider has a second spring inside, and the driving device can drive the second spring to move to realize the sliding of the second slider and the second lock tongue. When the driving device works to realize the first slider and the second slider moving toward each other, the first lock tongue and the second lock tongue are disengaged from the slot to realize the unlocking between the lock rod and the lock body. The driving device works to realize the first slider and the second slider moving away from each other to realize the resetting of the first lock tongue and the second lock tongue. At this time, after the lock rod is inserted into the lock body, the top ends of the first lock tongue and the second lock tongue under the action of the first spring and the second spring can be placed in the slot to realize the locking of the lock rod and the lock body, and the insertion end of the first lock tongue inserted into the slot and the insertion end of the second lock tongue inserted into the slot are symmetrically arranged.

[0007] When the lock is unlocked, the first and second lock tongues are released, and the first and second lock tongues are released, so that the first and second slide blocks move in opposite directions, and the first and second lock tongues are both inserted into the slots. When the lock is unlocked, the driving device drives the first and second springs to move, so that the first and second slide blocks can slide in the lock body, and the first and second slide blocks slide in opposite directions, and the first and second lock tongues are separated from the slots. Then, the driving device drives the first and second springs to move, so as to drive the first and second lock tongues to reset. Since the insertion end of the first lock tongue inserted into the slot and the insertion end of the second lock tongue inserted into the slot are symmetrically arranged, when the lock body is hit hard, the first lock tongue or the second lock tongue is separated from the lock slot by inertia, and the second lock tongue or the first lock tongue is still inserted in the lock slot by the elastic force of the spring, so that the lock rod cannot be separated from the lock body, thereby preventing the anti-theft lock from being pried.

[0008] The present invention is further configured as follows: the driving device includes a driving member, a rotating shaft, a first pin shaft and a second pin shaft, a sliding cavity for sliding the first slider and the second slider is provided in the lock body, the rotating shaft is rotatably arranged in the sliding cavity, and the two ends of the rotating shaft pass through the first slider and the second slider, the first slider is provided with a first installation cavity for installing the first spring, the first spring is sleeved on the rotating shaft, the first pin shaft is arranged in the radial direction of the rotating shaft and is located between the two ends of the first spring, the second slider is provided with a second installation cavity for installing the second spring, the second spring is sleeved on the rotating shaft, the second pin shaft is arranged in the radial direction of the rotating shaft and is located between the two ends of the second spring, and the driving member drives the rotating shaft to rotate.

[0009] With the above further configuration, the driving member drives the rotating shaft to rotate forward or reversely, and the rotating shaft drives the first pin shaft and the second pin shaft to rotate around the axis of the rotating shaft at the same time, so that the first pin shaft moves along the gap on the first spring, the first spring drives the first slider to slide in the sliding cavity, the second pin shaft moves along the gap on the second spring, and the second spring drives the second slider to slide in the sliding cavity. Therefore, when the first slider and the second slider slide towards each other, the first lock tongue and the second lock tongue are separated from the card slot to unlock the anti-theft lock. When the first slider and the second slider slide away from each other, they are reset.

[0010] The present invention is further configured as follows: a lock cavity for inserting a lock rod is provided in the lock body, an elastic device for ejecting the lock rod is provided in the lock cavity, the elastic device comprises a third spring and a top block, the top block is provided with an insertion cavity for inserting the third spring, and a limiting baffle is provided in the lock cavity to limit the third spring from pushing the top block out of the lock cavity.

[0011] With the above further configuration, when the first lock tongue and the second lock tongue are out of the slot, the top block moves toward the lock rod under the elastic force of the third spring, so that the top block pushes the lock rod out of the lock cavity, thereby unlocking the anti-theft lock.

[0012] The present invention is further provided with: a guide hole is provided on the second locking tongue along its sliding direction, and the first locking tongue can be slidably arranged in the guide hole.

[0013] By adopting the above-mentioned further arrangement, the first lock tongue and the second lock tongue are prevented from being displaced when sliding in the sliding cavity, and the internal structure of the anti-theft lock can be made more compact.

[0014] The present invention is further provided with: a Hall switch and a circuit board are provided in the lock body, a fixing groove for installing the circuit board is also provided in the lock body, the Hall switch is installed on the circuit board, and a magnetic part which senses the Hall switch is provided on the top block.

[0015] With the above further arrangement, when the lock rod is inserted into the lock cavity, the lock rod pushes the top block to compress the third spring, so that the Hall switch senses the magnetic part located on the top block, so that the drive device drives the first lock tongue to slide and the second lock tongue to insert into the slot, thereby locking the anti-theft lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a cross-sectional view of a specific embodiment of the present invention;

[0017] Figure 2 An exploded view of a specific embodiment of the present invention;

[0018] Figure 3 is a structural diagram of a specific embodiment of the present invention;

[0019] Figure 4 It is a diagram showing the installation relationship between the first locking tongue and the second locking tongue in a specific embodiment of the present invention;

[0020] Figure 5 This is a diagram showing the internal structure of a lock body according to a specific embodiment of the present invention;

[0021] Figure 6 A structural diagram of a locking rod according to a specific embodiment of the present invention;

[0022] Figure 7 It is a top block structure diagram of a specific embodiment of the present invention. DETAILED DESCRIPTION

[0023] The technical scheme in this embodiment will be described clearly and completely below in conjunction with the accompanying drawings. 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.

[0024] It should be noted that in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features.

[0025] In addition, the technical solutions between the various embodiments of the present invention may be combined with each other, but this must be based on the fact that they can be implemented by those skilled in the art. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0026] like Figure 1-7 As shown, an anti-theft lock of the present invention comprises a lock body 1 and a lock rod 2. In this embodiment, the lock body 1 can be a split structure.

[0027] A first locking tongue 3 is provided in the lock body 1, a locking rod 2 is provided with a slot 2.1 for inserting the first locking tongue 3, a first slider 4 is provided on the first locking tongue 3, a first spring 5 is provided in the first slider 4, after the locking rod 2 is inserted into the lock body 1, the top end of the first locking tongue 3 is placed in the slot 2.1 under the action of the first spring 5 to form a locking fit between the locking rod 2 and the lock body 1, a driving device 6 is provided in the lock body 1, the driving device 6 can drive the first spring 5 to move, the movement of the first spring 5 can drive the first slider 4 and the first locking tongue 3 to slide, so that the first locking tongue 3 can be separated from the slot 2.1 of the locking rod 2, that is, the unlocking between the locking rod 2 and the lock body 1 can be realized, a second locking tongue 7 is provided in the lock body 1, a second slider 8 is provided on the second locking tongue 7, a second spring 5 is provided in the second slider 8 Spring 9, the driving device 6 can drive the second spring 9 to move to realize the sliding of the second slider 8 and the second lock tongue 7. When the driving device 6 works to realize the first slider 4 and the second slider 8 to move toward each other, the first lock tongue 3 and the second lock tongue 7 are disengaged from the slot 2.1 to realize the unlocking between the lock rod 2 and the lock body 1. The driving device 6 works to realize the first slider 4 and the second slider 8 to move away from each other to realize the resetting of the first lock tongue 3 and the second lock tongue 7. At this time, after the lock rod 2 is inserted into the lock body 1, the top ends of the first lock tongue 3 and the second lock tongue 7 under the action of the first spring 5 and the second spring 9 can be placed in the slot 2.1 to realize the locking of the lock rod 2 and the lock body 1. The insertion end of the first lock tongue 3 inserted into the slot 2.1 and the insertion end of the second lock tongue 7 inserted into the slot 2.1 are symmetrically arranged.

[0028] When locking, the lock rod 2 is inserted into the lock body 1, and the lock rod 2 first pushes open the first lock tongue 3 and the second lock tongue 7, and then the first spring 5 and the second spring 9 release energy, so that the first slider 4 and the second slider 8 move in opposite directions, and the first lock tongue 3 and the second lock tongue 7 are inserted into the card slot 2.1. When unlocking, the driving device 6 drives the first spring 5 and the second spring 9 to move, so that the first slider 4 and the second slider 8 can slide in the lock body 1, and the first slider 4 and the second slider 8 slide in opposite directions, and the first lock tongue 3 and the second lock tongue 7 are released. After the first and second locking tongues 3 and 7 are released from the locking slot 2.1, the driving device 6 drives the first spring 5 and the second spring 9 to move, so as to drive the first locking tongue 3 and the second locking tongue 7 to reset. Since the insertion end of the first locking tongue 3 inserted into the locking slot 2.1 and the insertion end of the second locking tongue 7 inserted into the locking slot 2.1 are symmetrically arranged, when the lock body 1 is hit hard, the first locking tongue 3 or the second locking tongue 7 is released from the locking slot due to inertia, and the second locking tongue 7 or the first locking tongue 3 is still inserted in the locking slot due to the elastic force of the spring, so that the locking rod 2 cannot be released from the lock body 1, thereby preventing the anti-theft lock from being pried.

[0029] The driving device 6 comprises a driving member 6.1, a rotating shaft 6.2, a first pin shaft 6.3 and a second pin shaft 6.4. A sliding cavity 1.1 is provided in the lock body 1 for the first slider 4 and the second slider 8 to slide. The rotating shaft 6.2 is rotatably arranged in the sliding cavity 1.1, and the two ends of the rotating shaft 6.2 pass through the first slider 4 and the second slider 8. The first slider 4 is provided with a first installation cavity 4.1 for installing the first spring 5. The first spring 5 is sleeved on the rotating shaft 6.2, and the two ends of the first spring 5 are fixed to the first installation cavity 4.1. In the cavity 4.1, the first pin shaft 6.3 is arranged in the radial direction of the rotating shaft 6.2 and is located between the two ends of the first spring 5. The second sliding block 8 is provided with a second mounting cavity 8.1 for mounting the second spring 9. The second spring 9 is sleeved on the rotating shaft 6.2, and the two ends of the second spring 9 are fixed in the second mounting cavity 8.1. The second pin shaft 6.4 is arranged in the radial direction of the rotating shaft 6.2 and is located between the two ends of the second spring 9. The driving member 6.1 drives the rotating shaft 6.2 to rotate. In this embodiment, the driving member 6.1 is a motor.

[0030] The driving member 6.1 drives the rotating shaft 6.2 to rotate, and the rotating shaft 6.2 simultaneously drives the first pin 6.3 and the second pin 6.4 to rotate around the axis of the rotating shaft 6.2, so that the first pin 6.3 moves along the gap on the first spring 5, the first spring 5 drives the first slider 4 to slide in the sliding cavity 1.1, the second pin 6.4 moves along the gap on the second spring 9, and the second spring 9 drives the second slider 8 to slide in the sliding cavity 1.1. Therefore, when the first slider 4 and the second slider 8 slide toward each other, the first lock tongue 3 and the second lock tongue 7 are separated from the card slot 2.1, and the anti-theft lock is unlocked. When the first slider 4 and the second slider 8 slide away from each other, the first lock tongue 3 and the second lock tongue 7 are inserted into the card slot 2.1, and the lock is locked.

[0031] The lock body 1 is provided with a lock cavity 1.2 for inserting the lock rod 2, the lock cavity 1.2 is provided with an elastic device 10 for ejecting the lock rod 2, the elastic device 10 comprises a third spring 10.1 and a top block 10.2, the top block 10.2 is provided with an insertion cavity for inserting the third spring 10.1, and the lock cavity 1.2 is provided with a limiting baffle for limiting the third spring 10.1 from pushing the top block 10.2 out of the lock cavity 1.2.

[0032] When the first locking tongue 3 and the second locking tongue 7 are separated from the slot 2.1, the top block 10.2 moves toward the locking rod 2 under the elastic force of the third spring 10.1, so that the top block 10.2 pushes the locking rod 2 out of the lock cavity 1.2, thereby unlocking the anti-theft lock.

[0033] Among them, the second lock tongue 7 is provided with a guide hole 7.1 along its sliding direction for guiding the sliding of the first lock tongue 3, and the insertion end of the lock rod 2 can pass through the guide hole 7.1 to prevent the first lock tongue 3 and the second lock tongue 7 from being displaced when sliding in the sliding cavity 1.1, and also make the internal structure of the anti-theft lock more compact.

[0034] Among them, the lock body 1 is provided with a Hall switch 11 and a circuit board 12, and the lock body 1 is also provided with a fixing groove 1.4 for installing the circuit board 12. The Hall switch 11 is installed on the circuit board 12, and the top block 10.2 is provided with a magnetic member 13 that senses the Hall switch 11. When the locking rod 2 is inserted into the lock cavity 1.2, the locking rod 2 pushes the top block 10.2 to compress the third spring 10.1, so that the Hall switch 11 senses the magnetic member 13 located on the top block 10.2, so that the driving device 6 drives the first lock tongue 3 and the second lock tongue 7 to insert into the card slot 2.1, so that the anti-theft lock is locked. In this embodiment, the magnetic member 12 is a magnet.

Claims

1. An anti-theft lock, comprising a lock body and a lock rod, wherein a first lock tongue is arranged in the lock body, a slot for inserting the first lock tongue is arranged on the lock rod, a first slider is arranged on the first lock tongue, a first spring is arranged in the first slider, after the lock rod is inserted into the lock body, the top end of the first lock tongue is placed in the slot under the action of the first spring to form a locking fit between the lock rod and the lock body, a driving device is arranged in the lock body, the driving device can drive the first spring to move, the movement of the first spring can drive the first slider and the first lock tongue to slide, so that the first lock tongue can be separated from the lock rod slot, that is, the lock rod and the lock body are unlocked, characterized in that: The lock body is provided with a second lock tongue, the second lock tongue is provided with a second sliding block, and the second sliding block is provided with a second spring. The driving device can drive the second spring to move to realize the sliding of the second sliding block and the second lock tongue. When the driving device works to realize the first sliding block and the second sliding block to move toward each other, the first lock tongue and the second lock tongue are disengaged from the slot to realize the unlocking between the lock rod and the lock body. The driving device works to realize the first sliding block and the second sliding block to move away from each other to realize the resetting of the first lock tongue and the second lock tongue. At this time, after the lock rod is inserted into the lock body, the top ends of the first lock tongue and the second lock tongue under the action of the first spring and the second spring can be placed in the slot to realize the locking of the lock rod and the lock body. The insertion end of the first lock tongue inserted into the slot and the insertion end of the second lock tongue inserted into the slot are symmetrically arranged.

2. The anti-theft lock according to claim 1, characterized in that: The driving device includes a driving member, a rotating shaft, a first pin shaft and a second pin shaft. A sliding cavity for sliding the first slider and the second slider is provided in the lock body. The rotating shaft is rotatably arranged in the sliding cavity, and the two ends of the rotating shaft pass through the first slider and the second slider. The first slider is provided with a first installation cavity for installing the first spring. The first spring is sleeved on the rotating shaft. The first pin shaft is arranged in the radial direction of the rotating shaft and is located between the two ends of the first spring. The second slider is provided with a second installation cavity for installing the second spring. The second spring is sleeved on the rotating shaft. The second pin shaft is arranged in the radial direction of the rotating shaft and is located between the two ends of the second spring. The driving member drives the rotating shaft to rotate.

3. An anti-theft lock according to claim 1 or 2, characterized in that: A lock cavity for inserting a lock rod is provided in the lock body, an elastic device for ejecting the lock rod is provided in the lock cavity, the elastic device includes a third spring and a top block, the top block is provided with an insertion cavity for inserting the third spring, and a limiting baffle is provided in the lock cavity to limit the third spring from pushing the top block out of the lock cavity.

4. An anti-theft lock according to claim 1 or 2, characterized in that: The second locking tongue is provided with a guide hole along its sliding direction, and the first locking tongue can be slidably arranged in the guide hole.

5. The anti-theft lock according to claim 3, characterized in that: The lock body is provided with a Hall switch and a circuit board. The lock body is also provided with a fixing groove for installing the circuit board. The Hall switch is installed on the circuit board. The top block is provided with a magnetic part that senses the Hall switch.

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