Picture frame self-power-generation anti-theft device

Abstract

The invention discloses a picture frame self-power-generation anti-theft device which comprises a picture frame anti-theft device body, a self-power-generation alarm device and a rotating pressing rod. The picture frame anti-theft device body is arranged on a picture frame, and the rotating pressing rod is rotatably connected to the picture frame anti-theft device body. The self-power-generation alarm device comprises an alarm device body, a pressing piece, a self-power-generation mechanism and a wireless transmitting device, the alarm device body is arranged in the picture frame anti-theft device body, the pressing piece is telescopically arranged on the rear side of the alarm device body, and the self-power-generation mechanism and the wireless transmitting device are arranged in the alarm device body; the self-power-generating mechanism can be driven to generate power when the pressing piece presses the self-power-generating mechanism or bounces off from the self-power-generating mechanism, so that power is supplied to the wireless sending device, information is sent to an external receiving mechanism through the wireless sending device, and the warning function is achieved. One side of the rotating pressing rod is pressed on the outer side of the pressing piece, the other side of the rotating pressing rod makes contact with the wall, and it can be guaranteed that the pressing piece is pressed in place through the rotating pressing rod.

Description

Technical Field

[0001] This invention relates to the field of anti-theft devices, and in particular to a self-generating anti-theft device for picture frames. Background Technology

[0002] Many homes, offices, or art galleries display artworks, oil paintings, or ink paintings to decorate their interiors. These paintings are typically framed for protection. Some paintings are quite valuable, so owners often install anti-theft devices on the frames. Existing frames usually have hanging holes at the top, and hooks or nails are installed on the wall to connect them, allowing the frame to be suspended. In some cases, ceiling-mounted hanging devices are used, with the frame suspended from the bottom. However, in most situations, to facilitate viewing and minimize space usage, even when suspended, the frame is usually positioned close to or adjacent to a wall.

[0003] Existing picture frame anti-theft devices mainly rely on internal angle sensors for security. When an outsider moves the picture frame, the frame will rotate, causing the anti-theft device on it to rotate as well. During rotation, the angle sensor will detect the angle change, and the anti-theft device will sound an alarm when the rotation exceeds the set angle.

[0004] However, these devices have several insurmountable drawbacks. First, they require internal batteries, which need to be replaced after a certain period of use. Second, they lack self-anti-theft functionality; if a thief removes the painting vertically, the device may not be detected, meaning there's a risk the anti-theft device can be dismantled. Third, for expensive paintings, changing batteries requires moving the artwork, and customers want to minimize the possibility of handling their paintings, as more frequent handling increases the risk of damage. Summary of the Invention

[0005] The main objective of this invention is to provide a self-generating anti-theft device for picture frames that requires no external power supply, can adapt to the placement of the picture frame, and can emit an alarm signal when the picture frame is moved.

[0006] This invention proposes a self-generating anti-theft device for picture frames, comprising a picture frame anti-theft device body, a self-generating alarm device, and a rotating pressure rod; The picture frame anti-theft device body is set on the picture frame and fixedly connected to the picture frame, and the rotating pressure rod is rotatably connected to the rear side of the picture frame anti-theft device body. The self-generating alarm device includes an alarm device body, a pressing component, a self-generating mechanism, and a wireless transmitting device. The alarm device body is fixedly connected to the picture frame anti-theft device body. The pressing component is retractably mounted on one side of the alarm device body and extends from the rear side of the picture frame anti-theft device body. The self-generating mechanism and the wireless transmitting device are located within the alarm device body. The pressing component can activate the self-generating mechanism by pressing it or popping it open, thereby powering the wireless transmitting device and transmitting information to an external receiving device to achieve the alarm function. The rotating pressure rod presses against the front side of the pressing member, while the other side of the rotating pressure rod contacts the wall. The rotating pressure rod ensures that the pressing member is pressed into place.

[0007] Preferably, it also includes a connecting fastener, and is fixedly connected to the picture frame by means of adhesive or tape.

[0008] Preferably, if the space inside the picture frame is large, it also includes at least one supporting connector. The front side of the supporting connector is connected to the body of the picture frame anti-theft device, and the rear side of the supporting connector can be connected to the front side of another supporting connector and the connecting fastener. By setting multiple supporting connectors between the connecting fastener and the body of the picture frame anti-theft device, the needs of picture frames with large internal spaces can be met.

[0009] Preferably, the outer side of the frame anti-theft device body is provided with a body connection external thread, the rear side of the support connector is provided with a support connector external thread, and the front interior of the support connector and the interior of the connecting fastener are respectively provided with a support connector internal thread and a connecting fastener internal thread that are adapted to the body connection external thread and the support connector external thread. The frame placement device body is fixedly connected to the connecting fastener, the supporting connecting member and the connecting fastener, and the supporting connecting member and the supporting connecting member by means of threaded connection.

[0010] Preferably, a body connecting boss is provided on the front side of the picture frame anti-theft device body, a connecting boss connecting hole is provided on the body connecting boss, and a pressure rod connecting hole is provided on one end of the rotating pressure rod. The connecting boss connecting hole and the pressure rod connecting hole are connected by a connecting post, thereby connecting and setting the rotating pressure rod on the front side of the picture frame anti-theft device body.

[0011] The beneficial effects of the self-generating anti-theft device for picture frames of the present invention are as follows: By using a self-generating alarm device for theft prevention, no battery power is required, eliminating the need for battery replacement, thus reducing maintenance difficulty and minimizing contact with the artwork.

[0012] The anti-theft device can be adjusted in length to accommodate frames of different depths and placement methods. In actual use, some frames have a recessed back, so the adjustability of the anti-theft device is a practical necessity.

[0013] Since most picture frames are hung on the wall via the top mounting holes, and the self-generating anti-theft devices are mostly fixedly connected to the bottom rear of the frame, and some frames are very light, in actual use, lighter frames may not be able to fully press the pressing part in without rotating the pressure rod, rendering the self-generating anti-theft device unusable. Therefore, by setting a rotating pressure rod, the problem of the self-generating anti-theft device not working due to the way the picture frame is used can be overcome. In addition, for lighter picture frames that are blown by the wind, the allowable movement distance of the picture frame can be adjusted by adjusting the length of the rotating pressure rod, which can prevent accidental triggering and improve the daily user experience. Attached Figure Description

[0014] Figure 1 This is a perspective view of the self-generating anti-theft device for picture frames according to the present invention; Figure 2 This is a disassembly diagram of the self-generating anti-theft device for picture frames according to the present invention; Figure 3 This is a schematic diagram of the self-generated alarm device of the self-generated anti-theft device for picture frames according to the present invention; The following are the labels in the diagram: 1. Picture frame anti-theft device body; 2. Self-generating alarm device; 3. Rotating pressure rod; 4. Support connector; 5. Connecting fastener; 11. External thread of the body connection; 21. Pressing part; 22. Alarm device body; 23. Self-generating mechanism; 41. Internal thread of the support connector; 42. External thread of the support connector; 51. Internal thread of the connecting fastener.

[0015] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0016] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0017] Reference Figures 1 to 3 An embodiment of the self-generating anti-theft device for picture frames of the present invention is presented: A self-generating anti-theft device for picture frames includes a picture frame anti-theft device body 1, a self-generating alarm device 2, a rotating pressure rod 3, a connecting and fixing component 5, and a supporting connecting component 4.

[0018] The connecting fastener 5 is fixed to the picture frame by adhesive or tape. The outer side of the picture frame anti-theft device body 1 has an external thread 11, and the rear side of the supporting connecting member 4 has an external thread 42. The front interior of the supporting connecting member 4 and the interior of the connecting fastener 5 have internal threads 41 and 51 respectively, which are adapted to the external threads 11 and 42. The picture frame placement device body 1 and the connecting fastener 5, the supporting connecting member 4 and the connecting fastener 5, and the supporting connecting member 4 and the supporting fastener 5 are all fixedly connected by threads.

[0019] The front of the support connector 4 is connected to the main body 1 of the anti-theft device for the picture frame, and the rear of the support connector 4 can be connected to the connecting fastener 5. By setting multiple support connectors 4 between the connecting fastener 5 and the main body 1 of the anti-theft device for the picture frame, the actual usage needs of the picture frame can be met. The main body 1 of the anti-theft device for the picture frame is connected to the picture frame 5 through the connecting fastener.

[0020] The front side of the picture frame anti-theft device body 1 is provided with a body connecting boss, and the body connecting boss is provided with a connecting boss connecting hole. One end of the rotating pressure rod 3 is provided with a pressure rod connecting hole. The connecting boss connecting hole and the pressure rod connecting hole are connected by a connecting post, so that the rotating pressure rod 3 is rotatably connected to the front side of the picture frame anti-theft device body 1.

[0021] The self-generating alarm device 2 includes an alarm device body 22, a pressing member 21, a self-generating mechanism 23, and a wireless transmitting device. The alarm device body 22 is fixedly connected inside the picture frame anti-theft device body 1. The pressing member 21 is telescopically mounted on one side of the alarm device body 22 and extends from the front side of the picture frame anti-theft device body 1. The self-generating mechanism 23 and the wireless transmitting device are mounted inside the alarm device body 22. The pressing member can generate electricity by pressing the self-generating mechanism 23 or popping it open from the self-generating mechanism 23.

[0022] In actual use, the picture frame is hung on the wall hook via the frame hanging hole at the top of the frame. The self-generating anti-theft device is fixedly connected to the back of the picture frame. Rotating the pressure rod 3 presses it against the front of the pressing part 21, and rotating the other side of the pressure rod 3 ensures that the pressing part 21 is pressed in place. When someone moves the picture frame, the limit on the pressing part 21 is released, causing the pressing part 21 to pop out, thereby driving the self-generating mechanism 23 to generate electricity, which powers the wireless transmitter and sends information to an external receiving device to achieve the alarm function.

[0023] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A self-generating anti-theft device for picture frames, characterized in that, Includes the frame anti-theft device body, the self-generating alarm device, and the rotating pressure bar; The picture frame anti-theft device body is set on the picture frame and fixedly connected to the picture frame, and the rotating pressure rod is rotatably connected to the rear side of the picture frame anti-theft device body. The self-generating alarm device includes an alarm device body, a pressing component, a self-generating mechanism, and a wireless transmitting device. The alarm device body is fixedly connected to the picture frame anti-theft device body. The pressing component is retractably mounted on one side of the alarm device body and extends from the rear side of the picture frame anti-theft device body. The self-generating mechanism and the wireless transmitting device are located within the alarm device body. The pressing component can activate the self-generating mechanism by pressing it or popping it open, thereby powering the wireless transmitting device and transmitting information to an external receiving device to achieve the alarm function. The rotating pressure rod is pressed onto the front side of the pressing member, and the other side of the rotating pressure rod is in contact with the wall. The rotating pressure rod ensures that the pressing member is pressed in place.

2. The self-generating anti-theft device for picture frames according to claim 1, characterized in that, It also includes connecting fasteners, which are used to fix the picture frame in place by adhesive or tape.

3. The self-generating anti-theft device for picture frames according to claim 2, characterized in that, It also includes at least one supporting connector, the front side of which is connected to the body of the picture frame anti-theft device, and the rear side of which can be connected to the front side of another supporting connector and the connecting fastener. By setting multiple supporting connectors between the connecting fastener and the body of the picture frame anti-theft device, the usage needs of the picture frame can be met.

4. The self-generating anti-theft device for picture frames according to claim 3, characterized in that, The picture frame anti-theft device has an external thread for connecting the main body on its outer side, and an external thread for supporting the connecting member is provided on the rear side of the supporting connecting member. The front interior of the supporting connecting member and the interior of the connecting fixing member are respectively provided with an internal thread for supporting the connecting member and an internal thread for connecting the connecting member that are compatible with the external thread for connecting the main body and the external thread for supporting the connecting member. The frame placement device body is fixedly connected to the connecting fastener, the supporting connecting member and the connecting fastener, and the supporting connecting member and the supporting connecting member by means of threaded connection.

5. The self-generating anti-theft device for picture frames according to claim 1, characterized in that, The picture frame anti-theft device has a body connecting boss on the front side of its main body, and a connecting boss connecting hole is provided on the main body connecting boss. One end of the rotating pressure rod is provided with a pressure rod connecting hole. The connecting boss connecting hole and the pressure rod connecting hole are connected by a connecting post, thereby connecting and setting the rotating pressure rod on the front side of the picture frame anti-theft device.

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