Advertising light box with anti-theft function

Abstract

This utility model relates to the field of advertising light box technology, and provides an advertising light box with anti-theft function, including a fixed mounting frame and a panel frame hinged to the top of the fixed mounting frame via hinges; a locking rod is provided on the fixed mounting frame; an unlocking lock is provided at the bottom of the panel frame, the unlocking lock including a hook seat, a hook, and a torsion spring; the hook seat is fixedly installed at the bottom of the panel frame; a rotating rod is provided at the bottom of the panel frame, the rotating rod being rotatably connected to the hook seat; the hook is fitted onto the rotating rod and can rotate with the rotating rod, the position of the hook matching the locking rod; when locked, the hook is hooked on the locking rod; a decorative plate is slidably connected to the side frame of the panel frame, the decorative plate sealing irregular protrusions when the fixed mounting frame and the panel frame are closed. This utility model solves the problem of poor anti-theft performance of traditional advertising light boxes due to exposed and easily damaged locks.

Description

Technical Field

[0001] This utility model relates to the field of advertising light box technology, and in particular to an advertising light box with anti-theft function. Background Technology

[0002] Advertising light boxes, as an important outdoor advertising medium, are widely used in public places such as city streets, commercial plazas, and public transportation stations. However, because they are usually exposed to unattended open environments for extended periods, they are highly vulnerable to being targeted by criminals, facing security threats such as the theft of internal electronic components, malicious damage to the structure, or illegal replacement of advertising content.

[0003] Many advertising light boxes on the market are equipped with locks, but they generally have significant defects: First, the commonly used ordinary lock cylinders (such as cross and flat locks) have simple structures and are easily pried open or technically opened with common tools such as screwdrivers and wires, resulting in low anti-theft levels; Second, even if special locks are used, their keyholes or operating parts are often directly exposed, which not only affects the overall aesthetics but also provides clear targets and convenient conditions for illegal opening, greatly reducing the anti-theft effect. Utility Model Content

[0004] This utility model provides an advertising light box with anti-theft function, aiming to solve the problem of poor anti-theft performance of traditional advertising light boxes due to exposed and easily damaged locks. The technical solution is as follows: An anti-theft advertising light box includes a fixed mounting frame and a panel frame hinged to the top of the fixed mounting frame via hinges. A locking rod is provided on the fixed mounting frame. An unlocking lock is provided at the bottom of the panel frame, comprising a hook seat, a hook, and a torsion spring. The hook seat is fixedly mounted at the bottom of the panel frame. A rotating rod is provided at the bottom of the panel frame, and the rotating rod is rotatably connected to the hook seat. The hook is fitted onto the rotating rod and can rotate with it, with the hook position matching the locking rod. When locked, the hook is hooked onto the locking rod. The torsion spring is fitted onto the rotating rod, with its two ends acting on the hook seat and the hook respectively, providing a reset torque for the hook to move towards the locked position. An irregularly shaped protrusion is provided at the end of the rotating rod; using a matching tool to twist the protrusion drives the rotating rod to rotate, causing the hook to disengage from the locking rod. A decorative panel is slidably connected to the side frame of the panel frame, and the decorative panel blocks the irregularly shaped protrusion.

[0005] Based on the above technical solution, the panel frame is also provided with a safety lock. The safety lock includes a fixing plate fixedly connected to the panel frame and a safety hook hinged to the fixing plate. The bottom of the fixed mounting frame is provided with a safety plate that matches the position of the safety hook.

[0006] Preferably, the irregular protrusion is in the shape of a multi-petaled flower, including a central region and multiple protruding portions extending outward from the central region.

[0007] Preferably, the plurality of protrusions are asymmetrically distributed.

[0008] Preferably, the back of the fixed mounting frame is provided with a back heat dissipation hole.

[0009] Beneficial effects Compared with the prior art, the beneficial effects of this utility model are: 1. By adopting a concealed design and a locking mechanism that requires special tools to open, the light box effectively prevents the use of ordinary tools to pry the lock or open it by technical means, greatly improving its anti-vandalism and anti-theft capabilities.

[0010] 2. The safety lock can still restrain the panel frame after the lock is opened, preventing it from suddenly and violently springing open under the action of the gas spring. This effectively avoids safety accidents such as pinching or impact to maintenance personnel and ensures that the opening process is smooth and controllable. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one embodiment of this utility model. For those skilled in the art, other embodiments can be derived from the provided drawings without creative effort.

[0012] Figure 1 : A schematic diagram of the structure of this utility model; Figure 2 : A schematic diagram of the fixed mounting frame and panel frame of this utility model when opened; Figure 3 : Front view of this utility model; Figure 4 : Figure 3 Sectional view of AA; Figure 5 : A schematic diagram of the installation of the rotating rod and the unlocking lock described in this utility model; Figure 6 : A schematic diagram of the structure of the unlocking lock described in this utility model; Figure 7 : A schematic diagram of the irregular protrusion described in this utility model; Figure 8 : A schematic diagram of the tool described in this utility model opening the irregular protrusion; Figure 9 : A schematic diagram showing the position of the safety lock described in this utility model; Figure 10: A schematic diagram of the structure of the safety lock described in this utility model; Figure 11 : A schematic diagram of the structure of the baffle described in this utility model; Figure 12 : A schematic diagram of the heat dissipation hole structure of this utility model; Figure 13 : A schematic diagram of the internal structure of the fixed mounting frame described in this utility model; Figure 14 : A schematic diagram of the locking rod described in this utility model; Figure 15 : A schematic diagram of the structure of the heat dissipation holes on the back of this utility model. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and examples: The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0014] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0015] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not 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.

[0016] like Figures 1 to 3 An advertising light box with anti-theft function includes a fixed mounting frame 1 and a panel frame 3 hinged to the top of the fixed mounting frame 1 by a hinge 4; a gas spring 2 is connected between the fixed mounting frame 1 and the panel frame 3.

[0017] A gas spring, also known as a gas spring or gas lever, is a mechanical device that uses the pressure of compressed gas within a sealed cavity to generate thrust or support force. The panel frame 3 is connected by a top hinge 4, allowing the entire panel frame 3 to open upwards like a door. This facilitates the replacement of advertising images, and the maintenance of internal lighting fixtures, power modules, or player modules, etc.

[0018] like Figures 4 to 7 As shown, two unlocking locks 6 are provided at the bottom of the panel frame 3, respectively located at both ends of the bottom of the panel frame 3. Each unlocking lock 6 includes a hook base 61, a hook 62, and a torsion spring 63. The hook base 61 is fixedly installed at the bottom of the panel frame 3. A rotating rod 31 is provided at the bottom of the panel frame 3, and the rotating rod 31 is rotatably connected to the hook base 61. The hook 62 is fitted onto the rotating rod 31 and can rotate with the rotating rod 31. A locking rod 10 is provided on the fixed mounting frame 1; the hook 62 is positioned to match the locking rod 10, and when locked, the hook 62 is hooked onto the locking rod 10. When the panel frame 3 is closed, the hook 62 falls and is securely locked onto the locking rod 10 to prevent the panel frame 3 from being illegally opened.

[0019] The torsion spring 63 is mounted on the rotating rod 31. The two ends of the torsion spring 63 act on the hook seat 61 and the hook 62 respectively, providing the hook 62 with a reset torque toward the locking position. When the operator closes the panel frame 3, the hook automatically rotates under the action of the torsion spring and engages with the locking rod.

[0020] like Figure 8 As shown, the end of the rotating rod 31 is provided with an irregular protrusion 311. The irregular protrusion 311 is twisted by a tool 8 with a matching shape, which drives the rotating rod 31 to rotate, so that the hook 62 is disengaged from the locking rod 10.

[0021] Common general-purpose tools (such as flathead and Phillips screwdrivers, wrenches, and pliers) cannot engage with the irregular protrusion 311 to apply torque. Tool 8 has a groove whose shape matches that of the irregular protrusion 311. Only a tool 8 with a shape matching the irregular protrusion 311 can be inserted and drive the irregular protrusion 311, thereby rotating the rotating rod 31 to disengage the hook 62 from the locking rod 10. This effectively prevents thieves from using ordinary tools to pry, twist, or otherwise unlock the lock.

[0022] Specifically, the irregular protrusion 311 is multi-petaled, comprising a central region and multiple protruding portions extending outward from the central region. This multi-petaled shape is an unconventional geometry. Precise molds and specialized machining equipment are required to create an opening tool 8 that perfectly matches it.

[0023] In one embodiment, the plurality of protrusions are asymmetrically distributed. This asymmetrical structure disrupts conventional geometry, making it difficult to replicate a matching tool 8 through observation or simple measurement.

[0024] To further enhance anti-theft capabilities, a decorative panel 301 is slidably connected to the side frame 30 of the panel frame 3 to block and conceal the irregular protrusion 311.

[0025] Once the decorative panel 301 is slid into place, the irregular protrusion 311 is covered, making it invisible and inaccessible from the outside. The vandal would not know the opening point of the lightbox. When maintenance is needed, the decorative panel 301 must be slid open to expose the irregular protrusion 311, and then the rotating rod 31 can be turned with tool 8 to open the lightbox.

[0026] The gas spring 2, while supporting the panel frame 3, also stores a large amount of potential energy. If the bottom unlocking lock 6 is used as the sole constraint, the force of the gas spring may cause the panel frame to suddenly spring upwards at the moment of unlocking, potentially injuring maintenance personnel who are operating it.

[0027] To address the aforementioned issues, another embodiment is provided: the panel frame 3 is further equipped with a safety lock 7, such as... Figure 9 and Figure 10 As shown, the safety lock 7 is located at the center of the bottom of the panel frame 3. The safety lock 7 includes a fixing plate 71 fixedly connected to the panel frame 3 and a safety hook 72 hinged to the fixing plate 71. The bottom of the fixed mounting frame 1 is provided with a safety plate 12 that matches the position of the safety hook 72.

[0028] When not in use, safety hook 72 engages with safety plate 12, working together with the bottom unlocking lock 6 to firmly lock the panel frame. Even if the main lock 6 is unlocked, the panel frame will not be opened by the gas spring as long as safety lock 7 is not disengaged. When the operator unlocks lock 6, the fixed mounting frame 1 and panel frame 3 open a certain distance due to the presence of safety lock 7. To further unlock safety lock 7, specifically, the operator must manually rotate safety hook 72 to disengage it from safety plate 12, thus completing the opening of the entire panel frame 3. This step-by-step operation requires the operator to be prepared (e.g., holding the panel frame or ensuring surrounding safety).

[0029] like Figure 11 and Figure 12 As shown, the top plate 11 of the fixed mounting frame 1 has heat dissipation holes 110. A baffle 5 is fixedly connected to the top plate 11 above the heat dissipation holes 110, and there is a gap between the baffle 5 and the heat dissipation holes 110. When encountering rainy or snowy weather, rainwater will fall from above. The baffle covers the heat dissipation holes 110 to prevent rainwater, snowflakes, or large particles of debris from falling directly vertically into the heat dissipation holes 110.

[0030] like Figure 15As shown, in order to improve efficiency, the back of the fixed mounting frame 1 is also provided with a back heat dissipation hole 13.

[0031] like Figure 13 and Figure 14 As shown, the fixed mounting frame 1 contains functional components, including a power module and a player module. It also includes a screen, a network module, etc. These functional components are existing technologies readily available to those skilled in the art, and therefore will not be described in detail here.

[0032] The side frame of the fixed mounting frame 1 has an outward preset curvature. Compared with the traditional square right-angle design, the curved frame visually reduces the thickness of the entire light box.

[0033] The bottom of the fixed mounting frame 1 is equipped with anchor bolts. The anchor bolts can be chemical anchor bolts or expansion bolts, which can be deeply and firmly anchored in solid substrates such as concrete, and can withstand long-term outdoor environmental tests (such as temperature changes, rain erosion, freeze-thaw cycles) to ensure the use of the light box.

[0034] It should be noted that the hinges, gas springs, and functional components in this embodiment are all general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0035] The present invention has been described above by way of example, but the present invention is not limited to the specific embodiments described above. Any modifications or variations made based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. An advertising light box with anti-theft function, characterized in that, The system includes a fixed mounting frame (1) and a panel frame (3) hinged to the top of the fixed mounting frame (1) via a hinge (4); a locking rod (10) is provided on the fixed mounting frame (1); an unlocking lock (6) is provided at the bottom of the panel frame (3), the unlocking lock (6) including a hook seat (61), a hook (62) and a torsion spring (63); the hook seat (61) is fixedly installed at the bottom of the panel frame (3); a rotating rod (31) is provided at the bottom of the panel frame (3), the rotating rod (31) is rotatably connected to the hook seat (61); the hook (62) is fitted on the rotating rod (31) and can rotate with the rotating rod (31), the position of the hook (62) is relative to the locking rod (10). When locked, the hook (62) is attached to the locking rod (10); the torsion spring (63) is mounted on the rotating rod (31), and the two ends of the torsion spring (63) act on the hook seat (61) and the hook (62) respectively, providing the hook (62) with a reset torque toward the locking position; the end of the rotating rod (31) is provided with an irregular protrusion (311), and the irregular protrusion (311) is twisted by a tool (8) that matches the shape, driving the rotating rod (31) to rotate, so that the hook (62) is disengaged from the locking rod (10); a decorative plate (301) is slidably connected to the side frame (30) of the panel frame (3), and the decorative plate (301) blocks the irregular protrusion (311).

2. An advertising light box with anti-theft function according to claim 1, characterized in that: The panel frame (3) is also provided with a safety lock (7). The safety lock (7) includes a fixing plate (71) fixedly connected to the panel frame (3) and a safety hook (72) hinged to the fixing plate (71). The bottom of the fixed mounting frame (1) is provided with a safety plate (12) that matches the position of the safety hook (72).

3. An advertising light box with anti-theft function according to claim 1, characterized in that: The irregular protrusion (311) is multi-petal-shaped, including a central region and multiple protruding portions extending outward from the central region.

4. An advertising light box with anti-theft function according to claim 3, characterized in that: The shapes of the multiple protrusions are asymmetrically distributed.

5. An advertising light box with anti-theft function according to claim 1, characterized in that: The top plate (11) of the fixed mounting frame (1) is provided with heat dissipation holes (110), and a baffle (5) located above the heat dissipation holes (110) is fixedly connected to the top plate (11), and there is a gap between the baffle (5) and the heat dissipation holes (110).

6. An advertising light box with anti-theft function according to claim 5, characterized in that: The fixed mounting frame (1) has a back heat dissipation hole (13) on its back.

7. An advertising light box with anti-theft function according to claim 1, characterized in that: The side frame of the fixed mounting frame (1) has an outward preset curvature.

8. An advertising light box with anti-theft function according to claim 1, characterized in that: A gas spring (2) is connected between the fixed mounting frame (1) and the panel frame (3).

9. An advertising light box with anti-theft function according to claim 1, characterized in that: The fixed mounting frame (1) is equipped with functional components, including a power module and a player module.

10. An advertising light box with anti-theft function according to claim 1, characterized in that: Anchor bolts are provided at the bottom of the fixed installation frame (1).

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