A mobile alarm device and a locking device having the same

By designing a mobile alarm device, which utilizes the alarm circuit conversion between the slider and the main body, the problem of bicycle locks being easily damaged is solved, achieving easy activation and enhanced anti-theft protection in multiple scenarios.

CN224304216UActive Publication Date: 2026-05-29ZHANGPUYUAN WENXING TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHANGPUYUAN WENXING TECHNOLOGY CO LTD
Filing Date
2025-07-29
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing bicycle locks are easily unlocked or damaged by criminals using lock-picking tools, resulting in poor anti-theft performance.

Method used

Design a mobile alarm device that uses a slider in conjunction with the main body to switch the alarm circuit on and off, and integrates it with a lock to enhance anti-theft performance.

Benefits of technology

It enables easy activation of mobile alarm devices, enhancing the anti-theft performance of items in various usage scenarios. It triggers an alarm by detecting changes in location, thereby improving the anti-theft effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a mobile alarm device, include: body, alarm circuit, the slide piece of relative the body sliding setting, alarm circuit includes siren, be used for detecting the detection device of body position change and be used for controlling the switch of alarm circuit intercommunication, alarm circuit has the pass-through state and the open circuit state, the slide piece cooperates with the switch, the slide piece relative the body slide to make alarm circuit convert between pass-through state and open circuit state.
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Description

Technical Field

[0001] This utility model relates to the field of anti-theft, specifically to a mobile alarm device and a locking device having the same. Background Technology

[0002] Bicycles or electric bicycles are very popular means of transportation. Because they are lightweight and easy to move, they are at risk of being stolen. Existing anti-theft measures usually involve various locks that lock the bicycle wheels. However, criminals can use various unlocking tools to unlock or damage these locks in order to steal the bicycles. Designing an anti-theft device that is effective and easy to operate has always been a goal explored by those skilled in the art. Utility Model Content

[0003] The purpose of this invention is to overcome the deficiencies in the prior art and provide a novel mobile alarm device and a locking device thereon.

[0004] To achieve the above objectives, the first aspect of the technical solution adopted by this utility model is as follows:

[0005] A mobile alarm device includes: a body, an alarm circuit, and a slider slidably disposed relative to the body. The alarm circuit includes an alarm, a detection device for detecting changes in the position of the body, and a switch for controlling the connection of the alarm circuit. The alarm circuit has a closed state and a closed state. The slider cooperates with the switch, and the slider slides relative to the body to switch the alarm circuit between the closed state and the closed state.

[0006] In one embodiment, the slide includes a first sliding portion and a second sliding portion fixedly connected to the first sliding portion, the second sliding portion providing an abutment surface for the first sliding portion to slide relative to the body.

[0007] In one embodiment, the slide is L-shaped, and the second sliding part has a through hole for a locking pin to pass through, the locking pin being used to connect the mobile alarm device to the first lock.

[0008] In one embodiment, the locking pin is the end of the second lock.

[0009] In one embodiment, the first lock is used to lock the wheels of the moving item relative to each other, and the second lock is a chain lock or rope used to lock the moving item relative to a fixed object.

[0010] In one embodiment, the mobile alarm device further includes an elastic element for providing an elastic force that causes the slider to slide relative to the body.

[0011] To achieve the above objectives, the second aspect of the technical solution adopted by this utility model is as follows:

[0012] A locking device comprising a first lock, a second lock, and a mobile alarm device as described above.

[0013] In one embodiment, the first lock has an unlocking member that switches the first lock between a locked state and an unlocked state. The unlocking member is also used to control the locking and unlocking of the locking pin relative to the first lock. When the locking pin is locked relative to the first lock, the abutting surface is abutted by the first lock, causing the alarm circuit to be in the closed state. When the locking pin is unlocked relative to the first lock, the abutting surface disengages from the first lock, causing the alarm circuit to be in the open state.

[0014] In one embodiment, the first lock has a guide portion, and the locking pin is slidably disposed in the guide portion and can disengage relative to the guide portion.

[0015] In one embodiment, the end of the locking pin is provided with a locking groove, the first lock is provided with a locking block that can be engaged in the locking groove, and the unlocking member can drive the locking block to engage and disengage relative to the locking groove.

[0016] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0017] 1. The mobile alarm device of this utility model, by setting a slider to cooperate with the main body, can realize the easy activation of the mobile alarm device, and is suitable for a variety of usage scenarios;

[0018] 2. The mobile alarm device of this utility model alarms by detecting changes in the position of the device itself. It can be used in conjunction with other locks to enhance the anti-theft performance of items. Attached Figure Description

[0019] Figure 1 This is a perspective view of a mobile alarm device according to an embodiment of the present invention, in which the slider slides out relative to the main body;

[0020] Figure 2 This is a three-dimensional schematic diagram of a mobile alarm device in one embodiment of the present invention, with the upper shell and part of the alarm circuit removed, at which point the slider slides into the body.

[0021] Figure 3 This is a three-dimensional schematic diagram of a mobile alarm device in one embodiment of the present invention, with the upper shell and part of the alarm circuit removed, at which point the slider slides out relative to the main body;

[0022] Figure 4 This is an exploded view of the locking device in one embodiment of the present invention;

[0023] Figure 5 This is a front view of the locking device in one embodiment of the present invention. In this case, part of the housing of the first lock is removed, and the slider slides into the body.

[0024] Figure 6 This is a front view of the locking device in one embodiment of the present invention, in which the slider slides out relative to the body;

[0025] Figure 7 This is a perspective view of a locking device in one embodiment of the present invention. In this case, part of the housing of the first lock is removed, and the slider slides into the body.

[0026] Figure 8 for Figure 7 Enlarged view of part A in the middle.

[0027] The numbers on the map are:

[0028] 1-Main body; 11-Upper housing; 12-Lower housing; 121-Card hole; 13-Elastic clamp; 14-Receiving cavity; 2-Alarm circuit; 21-Alarm; 22-Power supply; 23-PCBA board; 3-Sliding piece; 31-First sliding part; 311-Elastic groove; 312-Limiting part; 32-Second sliding part; 321-Through hole; 322-Abutting surface; 4-Elastic element; 5-First lock; 51-U-shaped body; 52-Guide part; 53-Card block; 6-Second lock; 61-Locking pin; 611-Locking groove. Detailed Implementation

[0029] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0030] In the description of this utility model, the directions such as "front," "rear," "left," "right," "up," and "down" are explained as follows: Figure 6 As shown in the figure, the left side is "left", the right side is "right", the top side is "up", the bottom side is "down", and the direction perpendicular to the viewpoint is "forward" and "backward". The above definitions of directions are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] like Figure 1-8 As shown, in some embodiments of this utility model, the mobile alarm device includes a body 1, an alarm circuit 2, and a slider 3 that is slidably disposed relative to the body 1.

[0032] like Figure 1-4As shown, in some embodiments, the body 1 has an upper shell 11, a lower shell 12, and a receiving cavity 14 formed by the upper shell 11 and the lower shell 12, and an alarm circuit 2 and a slider 3 are provided in the receiving cavity 14.

[0033] The alarm circuit 2 includes an alarm 21, a detection device for detecting changes in the position of the body, a switch (not shown in the figure) for controlling the connection of the alarm circuit 2, and a power supply 22.

[0034] In some embodiments, the alarm 21 may be a sound output device, a light-emitting device, a vibration device, or a network-connected device capable of communicating with a remote telephone, computer, or server, such as... Figure 4 As shown, in this embodiment, the alarm 21 is specifically a loudspeaker, which can emit sound to deter thieves and attract the attention of people around.

[0035] In some embodiments, the detection device can be a mechanically triggered device, such as a microswitch or a mechanical grating; it can also be an optical detection device, such as an infrared sensor, a lidar, or a fiber optic sensor; or it can be an electromagnetic detection device, such as a proximity switch, a Hall sensor, or an electromagnetic induction coil. Specifically, in some embodiments, the detection device is a gyroscope sensor or an accelerometer, such as... Figure 4 As shown, the gyroscope sensor is mounted on PCBA board 23.

[0036] The alarm circuit 2 has an on / off state and an off / open state. In some embodiments, the switch cooperates with the end of the slider 3, such as... Figure 2 As shown, when the slider 3 slides into the body 1, the switch closes, and the alarm circuit 2 is completed, as follows: Figure 3 As shown, when the slider 3 slides out relative to the body 1, the alarm circuit 2 is disconnected, that is, the slider 3 slides relative to the body 1 to switch the alarm circuit 2 between the open state and the closed state.

[0037] In some embodiments, the cavity 14 is further provided with an elastic element 4, which is used to provide the elastic force required to make the slide 3 slide out relative to the body 1.

[0038] The slider 3 includes a first sliding portion 31 and a second sliding portion 32 fixedly connected to the first sliding portion 31. The second sliding portion 32 provides an abutment surface 322 for the first sliding portion 31 to slide relative to the body 1. In some embodiments, the slider 3 is L-shaped, with the first sliding portion 31 extending in the left-right direction and the second sliding portion 32 extending in the up-down direction. The right end of the first sliding portion 31 is fixedly connected to the upper end of the second sliding portion 32. The first sliding portion 31 has an elastic groove 311 extending in the left-right direction. The right end of the elastic member 4 abuts against the first sliding portion 31, and the left end of the elastic member 4 abuts against the body 1. In one embodiment, the left end of the first sliding portion 31 is also provided with a limiting portion 312 that cooperates with the body 1. Figure 3 As shown, the limiting part 312 is used to abut against the inner wall of the receiving cavity 14 to prevent the first sliding part 31 from completely dislodging from the receiving cavity 14 of the body 1.

[0039] like Figure 4-8 As shown, the locking device of this utility model includes a first lock 5, a second lock 6, and a movement alarm device. The first lock 5 is used to lock the wheels of the moving object relative to each other, and the second lock is a chain lock or rope used to lock the moving object relative to a fixed object.

[0040] In some embodiments, the second lock 6 is a chain lock with a locking pin 61 at its end. The locking pin 61 is used to connect with the first lock 5. The lower housing 12 of the body 1 has a locking hole 121. The second sliding part 32 of the slide plate 3 has a through hole 321 for the locking pin 61 to pass through. When the mobile alarm device needs to be used with the second lock 6, the locking pin 61 is simply passed through the locking hole 121 and finally inserted into the through hole 321. The locking hole 121 can also be provided with a tensioning clip 13 so that the second lock 6 is fixedly connected to the lower housing 12.

[0041] In some embodiments, the first lock 5 is a horseshoe lock, which includes a U-shaped body 51, a sliding lock block (not shown in the figure) that can slide relative to the U-shaped body 51 and thus close the U-shaped body 51, and an unlocking element (not shown in the figure) for controlling the first lock 5 to switch between a locked state and an unlocked state. Specifically, in one embodiment, the unlocking element is a physical key that mechanically cooperates with the sliding lock block. In other embodiments, the unlocking element may also be electrically connected to the sliding lock block.

[0042] like Figure 7 As shown, the first lock 5 is provided with a guide portion 52, and the locking pin 61 is slidably disposed in the guide portion 52 and can disengage from the guide portion 52. The end of the locking pin 61 is provided with a locking groove 611, which is specifically annular. The first lock 5 is provided with a locking block 53 that can be engaged in the locking groove 611. The unlocking component can drive the locking block 53 to engage and disengage from the locking groove 611. That is, the unlocking component is also used to control the locking and unlocking of the locking pin 61 relative to the first lock 5.

[0043] The working principle of the locking device of this utility model is explained below:

[0044] First, assemble the mobile alarm device with the second lock 5. At this time, the first sliding part 31 of the slide plate 3 is subjected to the elastic force of the elastic member 4, causing the slide plate 3 to slide out relative to the body 1. The limiting part 312 of the first sliding part 31 of the slide plate 3 abuts against the inner wall of the receiving cavity 14 to prevent the first sliding part 31 from completely dislodging from the receiving cavity 14 of the body 1. Then, insert the end of the locking pin 61 into the guide part 52 of the first lock 5. At this time, the abutting surface 322 of the second sliding part 32 of the slide plate 3 is abutted by the first lock 5, causing the slide plate 3 to slide into the body 1 against the elastic force of the elastic member 4 until the locking block 53 is locked in the locking groove 611 of the locking pin 61. At this time, the locking pin 61 is relatively The first lock 5 is locked, and the slider 3 is always resisted by the first lock 5 and remains in the sliding position relative to the body 1. The mobile alarm device forms a passage. When the criminal moves the item, the mobile alarm device will sound an alarm. When the first lock 5 is unlocked by the unlocking member, the sliding lock block slides relative to the U-shaped body 51 and opens the U-shaped body 51. At the same time, the locking block 53 disengages relative to the locking groove 611, and the locking pin 61 can disengage relative to the first lock 5. The locking pin 61 is unlocked relative to the first lock 5. At this time, the abutting surface 322 of the second sliding part 32 of the slider 3 disengages from the first lock 5 and abuts. The elastic force of the elastic member 4 drives the slider 3 to slide out relative to the body 1, and the alarm circuit 2 is in an open circuit state.

[0045] The locking device of this invention is suitable for bicycles, tricycles, scooters, or other wheeled mobile items. When using the locking device of this invention, the first lock 5 locks the wheels of the mobile item to prevent criminals from pushing it, the second lock 6 locks the mobile item to a fixed object, and a mobile alarm device further enhances the anti-theft performance. The unlocking component can simultaneously control the unlocking of the first lock 5, the unlocking of the locking pin 61 relative to the first lock 5, and the disconnection of the mobile alarm device, making it very convenient to use.

[0046] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A mobile alarm device, characterized in that, include: The system comprises a main body, an alarm circuit, and a slider slidably disposed relative to the main body. The alarm circuit includes an alarm, a detection device for detecting changes in the position of the main body, and a switch for controlling the connection of the alarm circuit. The alarm circuit has an on-state and an off-state. The slider cooperates with the switch, and the slider slides relative to the main body to switch the alarm circuit between the on-state and the off-state.

2. The mobile alarm device according to claim 1, characterized in that: The slide includes a first sliding portion and a second sliding portion fixedly connected to the first sliding portion. The second sliding portion provides an abutment surface for the first sliding portion to slide relative to the body.

3. The mobile alarm device according to claim 2, characterized in that: The slide is L-shaped, and the second sliding part has a through hole for the locking pin to pass through. The locking pin is used to connect the mobile alarm device to the first lock.

4. The mobile alarm device according to claim 3, characterized in that: The locking pin is the end of the second lock.

5. The mobile alarm device according to claim 4, characterized in that: The first lock is used to lock the wheels of the moving object relative to each other, and the second lock is a chain lock or rope used to lock the moving object relative to a fixed object.

6. The mobile alarm device according to claim 3, characterized in that: The mobile alarm device also includes an elastic element for providing an elastic force that causes the slider to slide relative to the body.

7. A locking device, characterized in that: The locking device includes a first lock, a second lock, and a mobile alarm device as described in any one of claims 3-6.

8. The locking device according to claim 7, characterized in that: The first lock has an unlocking component that switches the first lock between a locked state and an unlocked state. The unlocking component is also used to control the locking and unlocking of the locking pin relative to the first lock. When the locking pin is locked relative to the first lock, the abutting surface is abutted by the first lock, causing the alarm circuit to be in the closed state. When the locking pin is unlocked relative to the first lock, the abutting surface disengages from the first lock, causing the alarm circuit to be in the open state.

9. The locking device according to claim 7, characterized in that: The first lock has a guide portion, and the locking pin is slidably disposed in the guide portion and can disengage from the guide portion.

10. The locking device according to claim 8, characterized in that: The locking pin has a locking groove at its end, and the first lock has a locking block that can be engaged in the locking groove. The unlocking component can drive the locking block to engage and disengage relative to the locking groove.