Anti-falling device for field lighting lamp of subway system

Abstract

The utility model discloses a subway system field lighting lamp tube anti -drop device, including two magnetic attraction base, U type anti -drop buckle, fastening bolt, two magnetic attraction base sets up respectively at the both ends of U type anti -drop buckle, and the mutual connection through fastening bolt between magnetic attraction base and U type anti -drop buckle, and the magnetic attraction base is adsorbed on the lighting lamp tube decorative plate through magnetic force, and further fixes the lighting lamp tube through U type anti -drop buckle, and the fastening bolt is provided with locking adjusting unit between U type anti -drop buckle and magnetic attraction base, and the spacing between U type anti -drop buckle and lighting lamp tube decorative plate is adjusted through locking adjusting unit, to adapt to the fixed requirement of the lighting lamp tube of different size. The utility model discloses through magnetic attraction principle combines mechanical lock catch, has realized the quick installation and stable fixation of the tube lamp, has effectively solved the installation complex, easy to loosen and fall off and its collateral subsidiary problem of traditional fixed mode, has improved the safety and reliability of subway lighting system, has reduced the maintenance cost.

Description

Technical Field

[0001] This utility model relates to the technical field of lighting fixture accessories, specifically to anti-disengagement clips for single fluorescent tubes, LED tubes, and other lamp tubes of various sizes. Background Technology

[0002] In subway systems, the stability and safety of lighting facilities are of paramount importance. The lighting in subway station halls and platforms mainly relies on fluorescent tubes. These lamps often fall off due to aging lamp bases, deformed tubes, or negligence in maintenance. This not only affects passenger safety but may also cause serious consequences such as short circuits and fires.

[0003] In existing technologies, when a potential detachment hazard arises, the fault point is often difficult to detect immediately, and there are no effective tools for secondary protection of the lamps. This creates a safety hazard in the subway system. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a subway system on-site lighting tube anti-detachment device with an improved structure that can improve the stability and safety of lighting facilities in the subway system.

[0005] To achieve the above objectives, this utility model provides a device for preventing the detachment of on-site lighting tubes in a subway system. The device includes two magnetic bases, a U-shaped anti-detachment buckle, and fastening bolts. The two magnetic bases are respectively positioned at both ends of the U-shaped anti-detachment buckle. The magnetic bases and the U-shaped anti-detachment buckle are connected to each other by the fastening bolts. The magnetic bases are magnetically attached to the decorative panel of the lighting tube, and the U-shaped anti-detachment buckle further secures the lighting tube. A locking adjustment unit is provided between the fastening bolts, the U-shaped anti-detachment buckle, and the magnetic bases. This locking adjustment unit adjusts the distance between the U-shaped anti-detachment buckle and the decorative panel of the lighting tube, thereby adapting to the fixing requirements of lighting tubes of different sizes.

[0006] Furthermore, the fastening bolt includes an end, a middle threaded portion, and an annular ratchet at the top.

[0007] Furthermore, the U-shaped anti-disengagement buckle includes an anti-disengagement locking buckle and magnetic rings respectively disposed at both ends thereon, the magnetic rings being positioned in relation to the magnetic base.

[0008] Furthermore, the surface of the magnetic ring is provided with threaded holes that mate with fastening bolts, and the two are connected by fastening bolts placed between the magnetic ring and the magnetic base.

[0009] Furthermore, the intermediate threaded portion and the threaded hole are fitted together to allow the fastening bolt to be fixedly connected to the U-shaped anti-disengagement buckle.

[0010] Furthermore, the magnetic base is provided with a spring clip that is adapted to the annular ratchet.

[0011] Furthermore, the annular ratchet adopts an involute modified tooth profile with a module of 0.8 and a pressure angle of 25°.

[0012] This utility model discloses a device for preventing the detachment of on-site lighting tubes in subway systems. By combining magnetic attraction with mechanical locking, it achieves rapid installation and stable fixation of the tube lights, effectively solving the problems of complex installation, easy loosening and detachment, and related ancillary issues associated with traditional fixing methods. This improves the safety and reliability of subway lighting systems and reduces maintenance costs. Attached Figure Description

[0013] Figure 1 This is the front view of the present utility model;

[0014] Figure 2 This is a top view of the present invention;

[0015] Figure 3 This is a schematic diagram of the installation structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the fastening bolt structure;

[0017] Figure 5 This is a schematic diagram of the magnetic base structure. Detailed Implementation

[0018] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] The following combination Figures 1-5 The specific embodiments of this utility model will be described in detail below. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0022] like Figures 1-5 As shown, this utility model discloses a device for preventing the detachment of on-site lighting tubes in a subway system. It includes two magnetic bases 1, a U-shaped anti-detachment buckle 2, and a fastening bolt 3. The two magnetic bases 1 are respectively set at both ends of the U-shaped anti-detachment buckle 2. The magnetic bases 1 and the U-shaped anti-detachment buckle 2 are connected to each other by the fastening bolt 3. The magnetic bases 1 are magnetically attracted to the decorative panel 4 of the lighting tube, and the U-shaped anti-detachment buckle 2 further fixes the lighting tube 5 to the decorative panel 4 of the lighting tube.

[0023] In this utility model, a composite fixing structure is adopted: a dual fixing mode of "magnetic attraction + mechanical locking" is used, and a locking adjustment unit is added to further enhance the locking effect.

[0024] In this utility model, the locking adjustment unit adopts a rotary locking mechanism. A ring ratchet 8 is provided at the top of the fastening bolt 3, and a spring buckle 12 is provided at the corresponding position of the magnetic base 1. After the magnetic base 1 is attracted into place, the fastening bolt 3 can be mechanically locked by rotating it clockwise by 15°.

[0025] Due to the continuous vibration in the subway operating environment, the screw fixing mechanism is prone to loosening. Over time, the screws may fall off, causing the fixing structure to fail and leading to malfunctions.

[0026] In this utility model, if the magnetic base 1, the U-shaped anti-dislodgement buckle 2, and the lighting tube 5 are simply fixed by threaded connection, the fastening bolt 3 is prone to falling off during long-term use, which will also cause the lamp tube to deform or fall off.

[0027] Therefore, this utility model adopts a dual fixing mode of "magnetic attraction + mechanical locking", which achieves a stable locking and prevents the fastening bolt 3 from falling off.

[0028] To achieve the above objectives, in this invention, the fastening bolt 3 includes an end 6, a middle threaded portion 7, and an annular ratchet 8 at the top. The magnetic base 1 is provided with a spring clip 12 that matches the annular ratchet 8. By providing the annular ratchet 8 and the spring clip 12, when the fastening bolt 3 rotates clockwise, the annular ratchet 8 and the spring clip 12 cooperate with each other, and the latch will embed into the deep groove of the ratchet, thereby preventing the fastening bolt 3 from rotating in the opposite direction and thus preventing the fastening bolt 3 from falling off.

[0029] The U-shaped anti-disengagement buckle 2 includes an anti-disengagement locking buckle 9 and magnetic rings 10 respectively disposed at both ends thereon, with the magnetic rings 10 corresponding to the positions of the magnetic base 1. The surface of the magnetic rings 10 has threaded holes 11 that mate with fastening bolts 3. The fastening bolts 3 are used to connect the magnetic rings 10 and the magnetic base 1. The central threaded portion 7 mates with the threaded holes 11, allowing the fastening bolts 3 to be fixedly connected to the U-shaped anti-disengagement buckle 2.

[0030] During installation, the central threaded portion 7 of the fastening bolt 3 mates with the threaded hole 11 and is adjusted to a suitable position so that the distance between the U-shaped anti-disengagement buckle 2 and the lighting tube decorative panel 4 matches the diameter of the lighting tube 5. Subsequently, the annular ratchet 8 of the fastening bolt 3 mates with the spring clip 12 of the magnetic base 1, further securing the fastening bolt 3 to the magnetic base 1. Finally, the magnetic base 1 directly adheres to the lighting tube decorative panel 4, completing the fixation of the lighting tube 5.

[0031] In this utility model, the thread adjustment between the fastening bolt 3 and the U-shaped anti-disengagement buckle 2, and the anti-disengagement locking between the fastening bolt 3 and the magnetic base 1, further form a locking adjustment unit. The locking adjustment unit is used to adjust the distance between the U-shaped anti-disengagement buckle 2 and the lighting tube decorative plate 4, thereby adapting to the fixing requirements of lighting tubes 5 of different sizes.

[0032] In this embodiment, the annular ratchet 8 adopts an involute modified tooth profile with a module of 0.8 and a pressure angle of 25°, and the surface is carburized to a hardness of HRC58-62. The spring clip 12 includes a SUS631 aging-treated spring with a preload of 12N±0.5N and a working stroke of 3mm.

[0033] In this embodiment, the U-shaped anti-disengagement buckle 2 adopts a spring steel sheet structure with a silicone damping layer on the spring steel sheet, thereby forming a double-layer buffer structure of silicone damping layer + spring steel sheet, forming a 3mm buffer stroke in the vertical direction, which effectively plays a role in fixing and protecting the lighting tube 5.

[0034] This utility model discloses an anti-detachment device for on-site lighting tubes in a subway system, mainly composed of a magnetic base, a U-shaped anti-detachment buckle, and connecting bolts. The U-shaped anti-detachment buckle encircles the tube and is fixed to the decorative panel of the lamp fixture via the magnetic base (with a built-in high-strength magnet). The U-shaped anti-detachment buckle is designed to match the shape of the tube end and has a buffer rubber sleeve on its surface to prevent the tube from falling off and breaking upon impact. During installation, the U-shaped anti-detachment buckle is inserted into the end of the tube, and then the magnetic base is automatically aligned and fixed by magnetic attraction. The anti-detachment buckle can provide an attraction force of approximately 200N in the vertical direction. An adult male's arm provides approximately 60N-120N, while the custom neodymium magnet can provide an attraction force of approximately 200N in the vertical direction. Therefore, it is difficult for an adult male to remove it without external force (or by changing its fixing method). Regarding the horizontal vibrations generated, since the vertical direction provides a suction force of about 200N, it is difficult to move it without relying on external force (or changing its fixing method). Therefore, if the installation position is fixed, the horizontal movement will not be affected by external force, and the installation is firm and reliable.

[0035] Design considerations:

[0036] Magnetic design: It adopts high-performance φ16 diameter circular neodymium magnets. Neodymium magnets are one of the strongest permanent magnet materials currently available. Their magnetic force can reach several times that of other permanent magnet materials. A single magnet can support a weight of 8 kg (far greater than the weight of the lamp tube). The attraction force is as high as 200N. Each lamp tube is fixed with 4 neodymium magnets, providing stable and safe attraction force at both ends of the tube near the lamp base and in the middle of the tube, while reducing damage to materials during installation.

[0037] Adsorption force estimation: Formula for calculating the adsorption force of a round neodymium iron boron magnet: Volume * Density * 600 times = Adsorption force calculation: 16mm (diameter) * 5mm (thickness) N35 neodymium magnet.

[0038] Adsorption force = (8 radius * 8 radius * 3.14 * 5 thickness) volume * 0.0075 density * 600 times = 4522 (g). In other words, a 16*5 N35 strong magnet can attract an object weighing 4.522 kg.

[0039] Quick installation: Automatic alignment via magnetic attraction reduces installation time and improves installation efficiency; at the same time, it does not affect the quick installation and repair of the lamps during maintenance.

[0040] Anti-detachment locking mechanism: An additional rubber anti-collision sleeve mechanism is added to prevent the lamp from accidentally falling off in extreme situations, such as excessive impact force or damage to the lamp tube.

[0041] High adaptability: The magnetic ring design is flexible and can adapt to various complex application scenarios. It can be adapted to various specifications of tube lights, improving the product's versatility.

[0042] Compact design: It will not block the lights from being turned on during installation and meets the normal illumination level on site.

[0043] Durability: It has a long service life in terms of durability and maintenance, and requires almost no maintenance after installation, which greatly reduces the cost of use.

[0044] Implementation Plan

[0045] 1. Preparation stage: Select appropriate magnetic rings and magnetic bases according to the specifications of the fluorescent tube light.

[0046] 2. Install the magnetic ring: Slide the magnetic ring onto the end of the tube light and tighten it with the fastening bolts.

[0047] 3. Positioning and installation: Place the magnetic ring with the tube light close to the magnetic base, and use the magnetic force to automatically align and fix it in place.

[0048] 4. Install anti-slip buckles: Install anti-slip buckles in appropriate positions to further enhance the fixing effect.

[0049] Beneficial effects

[0050] Significantly improves safety: Effectively prevents fluorescent tubes from falling off in both horizontal and vertical directions, ensuring secure installation and effectively reducing the risk of lamp detachment and the resulting electrical faults or safety hazards.

[0051] Simplified installation and maintenance: The magnetic design makes installation quicker and requires almost no maintenance after installation.

[0052] Enhanced adaptability: Compatible with various specifications of tube lights, improving equipment utilization.

[0053] Reduce costs: Minimize repair costs and time lost due to light fixtures falling off.

Claims

1. A device for preventing the detachment of on-site lighting tubes in a subway system, characterized in that, It includes two magnetic bases, a U-shaped anti-disengagement buckle, and fastening bolts. The two magnetic bases are respectively set at both ends of the U-shaped anti-disengagement buckle. The magnetic bases and the U-shaped anti-disengagement buckle are connected to each other by fastening bolts. The magnetic bases are magnetically attached to the decorative panel of the lighting tube, and the U-shaped anti-disengagement buckle further secures the lighting tube. A locking adjustment unit is set between the fastening bolt, the U-shaped anti-disengagement buckle, and the magnetic base. The locking adjustment unit can be used to adjust the distance between the U-shaped anti-disengagement buckle and the decorative panel of the lighting tube, so as to adapt to the fixing requirements of lighting tubes of different sizes.

2. The anti-detachment device for on-site lighting tubes in a subway system according to claim 1, characterized in that, The fastening bolt includes an end, a middle threaded portion, and an annular ratchet at the top.

3. The anti-detachment device for on-site lighting tubes in a subway system according to claim 2, characterized in that, The U-shaped anti-disengagement buckle includes an anti-disengagement locking buckle and magnetic rings respectively disposed at both ends thereon, the magnetic rings being positioned in relation to the magnetic base.

4. The anti-detachment device for on-site lighting tubes in a subway system according to claim 3, characterized in that, The magnetic ring has threaded holes on its surface that mate with fastening bolts. The magnetic ring and the magnetic base are connected by fastening bolts.

5. The anti-detachment device for on-site lighting tubes in a subway system according to claim 4, characterized in that, The intermediate threaded portion and the threaded hole are installed together so that the fastening bolt can be fixedly connected to the U-shaped anti-disengagement buckle.

6. The anti-detachment device for on-site lighting tubes in a subway system according to claim 2, characterized in that, The magnetic base is equipped with a spring clip that matches the annular ratchet.

7. The anti-detachment device for on-site lighting tubes in a subway system according to claim 2, characterized in that, The annular ratchet uses an involute modified tooth profile with a module of 0.8 and a pressure angle of 25°.

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