A horseshoe lock that prevents violent unlocking

Abstract

The utility model provides a horseshoe lock that can prevent violent unlocking, including a lock ring part, a lock body, a lock gate, and a driving mechanism that drives the lock gate to snap into the lock ring. The lock body is provided with a space for the lock gate to reciprocate linearly, and also includes a rotating member connected between the driving mechanism and the lock gate to drive the lock gate to reciprocate linearly. The rotating member can be rotatably arranged in the lock body, and one end is matched with the driving mechanism for transmission. The rotating member has an eccentrically arranged eccentric transmission part, and the eccentric transmission part is matched with the lock gate for transmission. When the eccentric transmission part rotates, the lock gate is pushed to move linearly. A torsion spring that keeps the drive lock gate in a locked state for a long time is provided between the rotating member and the lock body. The utility model ingeniously realizes the opening and closing of the lock gate by the rotation of the rotating member, and it is difficult to rotate the rotating member when the lock is violently smashed, and the lock gate, the rotating member, and the torsion spring parts are far away from the end of the lock body and are less affected, so the ability to prevent violent unlocking is greatly improved, and the product quality is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of locks, in particular to a horseshoe lock. Background Art

[0002] At present, the horseshoe lock has weak anti-violent opening ability. For example, the high-security bicycle horseshoe lock disclosed with authorization announcement number CN202441152U has a horseshoe lock in which the spring at the tail end presses the lock gate when the lock gate is locked, so that the lock gate can be stuck into the gap of the lock ring. When an external force hits the lock body to generate vibration, the spring may be compressed and cause the lock gate to retract, thereby causing the lock gate to disengage from the gap of the lock ring, and finally causing the lock ring to automatically unlock, especially when the lock body at the tail of the spring is violently hit. When the violent force overcomes the elastic force of the spring, the lock gate is in a free state, and the possibility of violent opening increases. Utility Model Content

[0003] The technical problem to be solved by the utility model is how to prevent the lock gate from being displaced and unlocked due to violent lock smashing.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A horseshoe lock that prevents violent unlocking, includes a lock ring part, a lock body, a lock gate and a driving mechanism that drives the lock gate to snap into the lock ring, the lock body is provided with a space for the lock gate to move back and forth linearly, and also includes a rotating member connected between the driving mechanism and the lock gate to drive the lock gate to move back and forth linearly, the rotating member is rotatably arranged in the lock body, and one end is transmission-matched with the driving mechanism, the rotating member is provided with an eccentrically arranged eccentric transmission part, the eccentric transmission part is transmission-matched with the lock gate, when the eccentric transmission part rotates, the lock gate is pushed to move linearly, and a torsion spring is provided between the rotating member and the lock body to keep the drive lock gate in a locked state for a long time.

[0006] Preferably, the lock gate is provided with a long groove for inserting the eccentric transmission part of the rotating part, and the eccentric transmission part of the rotating part is placed in the long groove. When the rotating part is in a rotating state, the eccentric transmission part pushes the inner wall of the long groove and moves in the long groove in a direction perpendicular to the movement direction of the lock gate.

[0007] Preferably, driving mechanisms are provided at both ends of the rotating member, one driving mechanism is a lock core driving device, and the other driving mechanism is a motor driving device. An idling stroke mechanism is provided between the lock core driving device and the rotating member and between the motor driving device and the rotating member. When one of the driving devices drives the rotating member to rotate, the idling stroke mechanism causes the rotating member on the other side to be in an idling state.

[0008] Preferably, the idle stroke mechanism includes a transmission arm arranged on the lock cylinder drive device and the motor drive device, close to one end of the rotating part, and a passive arm extending within the active trajectory of the transmission arm is directly or indirectly provided on the rotating part, and a reverse idle space is provided between the passive arm and the transmission arm. When the passive arm rotates in the opposite direction with the rotating part, no transmission is transmitted between the passive arm at this end of the rotating part and the matching transmission arm.

[0009] Preferably, the rotating member is linked with a secondary member at the end of the eccentric transmission portion, wherein a passive arm is provided on the secondary member.

[0010] Preferably, the lock body is provided with a lock hole for inserting the chain lock head, and the lock body is provided with a movable lock plate, which can be movably extended into the lock hole. The lock plate abuts and cooperates with the lock gate, and the lock plate abuts within the range of the lock gate's movable trajectory in the unlocking and retracting direction of the lock gate.

[0011] Preferably, a spring is provided between the locking plate and the lock body to keep the locking plate in a locked state.

[0012] The beneficial effects of the utility model are as follows: the utility model ingeniously realizes the opening and closing of the lock gate by rotating the rotating part, and it is difficult to rotate the rotating part when the lock is violently smashed, and the lock gate, the rotating part, and the torsion spring parts are far away from the end of the lock body and are less affected, so the anti-violent unlocking capability is greatly improved, thereby improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the lock body structure of the utility model;

[0014] Figure 2 A cross-sectional view showing the rotating member installed inside the lock body;

[0015] Figure 3 is a cross-sectional view of the lock body;

[0016] Figure 4 It is a schematic diagram of the connection structure between the rotating member and the lock gate and the driving devices at both ends of the rotating member;

[0017] Figure 5 It is a structural schematic diagram of a rotating part;

[0018] Figure 6 It is a structural schematic diagram of a lock cylinder driving device;

[0019] Figure 7 is a schematic diagram of the structure of the motor drive device;

[0020] Figure 8 It is a schematic diagram of the structure of the auxiliary parts;

[0021] Fig. 9 This is a schematic diagram of the structure of the lock. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example

[0024] See also Figure 1-Figure 9 , as shown in the figure, is a horseshoe lock that prevents violent unlocking, including a lock ring part, a lock body 1, a lock gate 2, and a driving mechanism that drives the lock gate 2 to snap into the lock ring. The lock ring part is a prior art and will not be elaborated in detail here. In order for the lock gate 2 to be able to freely telescopically move in the lock body 1, this embodiment is provided with a space for the lock gate 2 to reciprocate linearly in the lock body 1. It is worth noting that this embodiment also includes a rotating member 3 connected between the driving mechanism and the lock gate 2 to drive the lock gate 2 to reciprocate linearly. The rotating member 3 can be rotatably arranged in the lock body 1. The lock body 1 is provided with a slot 11 for the rotating member 3 to rotate, and one end of the rotating member 3 is connected to the drive mechanism transmission The rotating member 3 is provided with an eccentric transmission part 31 which is eccentrically arranged, and the cam structure can also be adopted. Both structures are conventional means for driving a part to reciprocate. The specific structure can be realized by only slightly modifying the present embodiment, and will not be elaborated in detail here. In the present embodiment, the eccentric transmission part 31 is in transmission cooperation with the lock gate 2. When the eccentric transmission part 31 rotates, the lock gate 2 is pushed to move linearly. A torsion spring 4 is provided between the rotating member 3 and the lock body 1 to keep the lock gate 2 in a locked state for a long time. One end of the torsion spring 4 is provided on the rotating member 3, and the other end is clamped on the inner wall of the slot 11 of the lock body 1 for installing the rotating member 3. In the present embodiment, the position of the lock gate 2 is limited by the rotation angle of the rotating member 3, and the rotation angle of the rotating member 3 is maintained by the torsion spring 4. Therefore, if the lock gate 2 needs to be forcibly unlocked, the rotating member 3 needs to be driven to rotate, and this method is obviously difficult to achieve by violently smashing the lock, thereby improving the violent unlocking ability of the lock.

[0025] In this embodiment, in order to enable the eccentric transmission part 31 to drive the lock gate 2 to move up and down when the rotating member 3 rotates, a long groove 21 is provided on the lock gate 2 for the eccentric transmission part 31 of the rotating member 3 to be inserted, and the eccentric transmission part 31 of the rotating member 3 is placed in the long groove 21. When the rotating member 3 is in a rotating state, the eccentric transmission part 31 pushes the inner wall of the long groove 21 and moves in the long groove 21 in a direction perpendicular to the movement direction of the lock gate 2.

[0026] In order to have the smart lock function in this embodiment, driving mechanisms are provided at both ends of the rotating member 3 in this embodiment, one of which is a lock core driving device 5, and the other is a motor driving device 6. The motor driving device 6 has a built-in motor, and the lock gate 2 is unlocked by controlling the operation of the motor. This function cooperates with Bluetooth or other wireless transmission signal modules to achieve remote smart unlocking. This functional structure is a conventional technology in the current smart lock field and is not elaborated in detail here. In order to prevent the driving device at one end from affecting the driving device at the other end, an idling stroke mechanism is provided between the lock core driving device 5 and the rotating member 3 and between the motor driving device 6 and the rotating member 3 in this embodiment. When one of the driving devices drives the rotating member 3 to rotate, the idling stroke mechanism causes the rotating member 3 on the other side to be in an idling state. The idle stroke mechanism described in this embodiment includes a transmission arm 7 arranged on the lock cylinder drive device 5 and the motor drive device 6 and close to one end of the rotating member 3. A passive arm 8 extending to the range of the active trajectory of the transmission arm 7 is directly or indirectly provided on the rotating member 3. A reverse idle space is provided between the passive arm 8 and the transmission arm 7. When the passive arm 8 rotates in the opposite direction with the rotating member 3, no transmission is transmitted between the passive arm 8 at this end of the rotating member 3 and the matching transmission arm 7.

[0027] In the present embodiment, a limiting portion 111 for limiting the rotation angle of the rotating member 3 is provided in the slot 11 of the lock body 1 where the rotating member 3 is installed. The limiting portion 111 divides the slot 11 where the rotating member 3 is installed into two parts. The limiting portion 111 allows only the eccentric transmission portion 31 of the rotating member 3 to pass through. Therefore, in order to be able to cooperate with the transmission of the driving device at the other end, in the present embodiment, the rotating member 3 is linked with a sub-part 10 at the end of the eccentric transmission part 31, wherein a passive arm 8 is provided on the sub-part 10, and the sub-part 10 is installed from the other end of the slot 11 during installation.

[0028] In order to make the lock body 1 have the chain lock function, the lock body 1 is provided with a lock hole 12 for inserting the lock head of the chain lock, and a movable lock plate 9 is provided in the lock body 1. The lock plate 9 can be movably extended into the lock hole 12. The lock plate 9 is in abutment with the lock gate 2, and the lock plate 9 is in abutment with the lock gate 2 in the unlocking and retreating direction of the lock gate 2. The chain lock is a conventional technology on the market. The present embodiment combines the chain lock with the horseshoe lock, so that the horseshoe lock has two lock functions, so that the bicycle equipped with the horseshoe lock can be fixed on a fixed stake such as a fence or a tree, so as to prevent others from stealing the bicycle by moving it away. In order to keep the chain lock in a locked state under normal conditions, the present embodiment is provided with a spring 91 between the lock plate 9 and the lock body 1 to keep the lock plate 9 in a locked state. This arrangement enables the chain lock to be automatically locked without a key. The present embodiment is provided with through grooves 13 on both sides of the upper end of the lock body 1 located in the active space of the lock gate 2, and the lock plate 9 extends into the through grooves 13.

Claims

1. A horseshoe lock that prevents violent unlocking, comprising a lock ring, a lock body, a lock gate, and a driving mechanism for driving the lock gate to snap into the lock ring, wherein a space for the lock gate to reciprocate linearly is provided in the lock body, and the characteristics are: The lock gate is also provided with a rotating member connected between the driving mechanism and the lock gate for driving the lock gate to reciprocate linearly. The rotating member is rotatably arranged in the lock body, and one end of the rotating member is in transmission cooperation with the driving mechanism. The rotating member is provided with an eccentrically arranged eccentric transmission part, and the eccentric transmission part is in transmission cooperation with the lock gate. When the eccentric transmission part rotates, the lock gate is pushed to move linearly. A torsion spring is provided between the rotating member and the lock body for keeping the driven lock gate in a locked state for a long time.

2. A horseshoe lock that resists violent unlocking as claimed in claim 1, characterized in that: The lock gate is provided with a long groove for the eccentric transmission part of the rotating member to be inserted. The eccentric transmission part of the rotating member is placed in the long groove. When the rotating member is in a rotating state, the eccentric transmission part pushes the inner wall of the long groove and moves in the long groove in a direction perpendicular to the movement direction of the lock gate.

3. A horseshoe lock that resists violent unlocking as claimed in claim 1, characterized in that: Both ends of the rotating member are provided with driving mechanisms, one of which is a lock core driving device, and the other driving mechanism is a motor driving device. An idling stroke mechanism is provided between the lock core driving device and the rotating member and between the motor driving device and the rotating member. When one of the driving devices drives the rotating member to rotate, the idling stroke mechanism causes the rotating member on the other side to be in an idling state.

4. A horseshoe lock that resists violent unlocking as claimed in claim 3, characterized in that: The idle stroke mechanism includes a transmission arm arranged on the lock cylinder drive device and the motor drive device and close to one end of the rotating part. A passive arm extending within the range of the active trajectory of the transmission arm is directly or indirectly provided on the rotating part. A reverse idle space is provided between the passive arm and the transmission arm. When the passive arm rotates in the opposite direction with the rotating part, no transmission is transmitted between the passive arm at this end of the rotating part and the matching transmission arm.

5. A horseshoe lock that resists violent unlocking as claimed in claim 4, characterized in that: The rotating member is linked with a secondary member at the end of the eccentric transmission part, wherein a passive arm is arranged on the secondary member.

6. A horseshoe lock that resists violent unlocking as claimed in claim 5, characterized in that: The lock body is provided with a lock hole for inserting the chain lock head, and the lock body is provided with a movable lock plate, which can be movably extended into the lock hole. The lock plate abuts and cooperates with the lock gate, and the lock plate abuts within the range of the lock gate's movable trajectory in the unlocking and retreating direction of the lock gate.

7. A horseshoe lock that resists violent unlocking as claimed in claim 6, characterized in that: A spring is provided between the lock plate and the lock body to keep the lock plate in a locked state.

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