LED three-proofing lamp tube

CN224229949UActive Publication Date: 2026-05-12SHENZHEN LEMING PHOTOELECTRIC LIGHTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN LEMING PHOTOELECTRIC LIGHTING CO LTD
Filing Date
2025-04-30
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing tri-proof lamp tubes use numerous external fasteners for fixing and connection, resulting in cumbersome installation and many gaps, making it impossible to achieve a good waterproof rating.

Method used

The end cap assembly with a built-in waterproof structure includes a plug, a waterproof ring, an end cap, and a waterproof ring. Through interference fit and threaded connection, the sealing between the end cap assembly and the tube body is ensured, and built-in fasteners are used to reduce surface gaps.

Benefits of technology

It achieves the waterproof, dustproof, and shockproof functions of the tri-proof lamp tube, while simplifying the installation process, improving the waterproof rating, and reducing its weight.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of LED lamps, in particular to an LED tri-proof lamp tube which comprises a tube body which is of a hollow structure, and the two ends of the tube body are open ends. The LED lamp panel is arranged in the tube body; the end cover assemblies are detachably arranged at the two ends of the pipe body; a waterproof structure is arranged between the outer side of the end cover assembly and the inner side of the pipe body in an interference mode. The end cover assembly is also provided with a through hole through which a power connecting line passes. And the waterproof joint is detachably arranged at the through hole of the end cover assembly. The three-proofing lamp tube solves the problems that an existing three-proofing lamp tube structure is fixedly connected through a plurality of external fasteners, installation is complex, more gaps exist, and the requirement for the waterproof grade of the three-proofing lamp tube cannot be met.
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Description

Technical Field

[0001] This utility model relates to the field of LED lighting technology, and in particular to a tri-proof LED lamp tube. Background Technology

[0002] Tri-proof lamp tubes are lamp tubes with waterproof, dustproof, and shockproof functions, and can be used in relatively harsh environments.

[0003] The existing tri-proof lamp tube structure uses many external fasteners for fixing and connection, which not only makes the installation more complicated, but also has many gaps, resulting in the tri-proof lamp tube failing to meet the required waterproof rating.

[0004] Therefore, this utility model proposes an LED tri-proof lamp tube. Utility Model Content

[0005] The utility model of this invention is to provide an LED tri-proof lamp tube, which mainly solves the problem that the existing tri-proof lamp tube structure uses many external fasteners for fixing and connection, which not only makes the installation more complicated, but also has many gaps, resulting in the tri-proof lamp tube failing to meet the waterproof rating requirements.

[0006] This utility model proposes an LED tri-proof lamp tube, comprising:

[0007] The tube body has a hollow structure, and both ends of the tube body are open ends;

[0008] LED light panel, built into the tube body;

[0009] An end cap assembly is detachably mounted on both ends of the tube body; a waterproof structure is provided between the outer side of the end cap assembly and the inner side of the tube body; and a through hole is formed on the end cap assembly for the passage of a power supply connection line.

[0010] A waterproof connector is detachably installed at the through hole of the end cap assembly.

[0011] Preferably, the end cap assembly includes:

[0012] The end cap is designed as a hollow structure open at both ends;

[0013] The wiring terminal is built into the plug and is electrically connected to the LED light board;

[0014] An end cap is fitted over the plug, and the end cap has a through hole at the end away from the tube body;

[0015] The waterproof structure includes a waterproof ring, which is fitted onto the outer side of the end of the plug near the pipe body. The thickness of the waterproof ring is greater than the difference between the inner diameter of the pipe body and the outer diameter of the plug, so that the waterproof ring is interference-fitted between the inner side of the pipe body and the outer side of the plug.

[0016] Preferably, the outer surface of the plug protrudes to form a limiting rib, and the end cap is positioned against one side of the limiting rib;

[0017] One end of the waterproof ring has an outer edge, and the outer edge is disposed abutting against the other side of the positioning rib.

[0018] Preferably, the inner protrusion of the waterproof ring forms a locking member, and the length direction of the locking member is the fitting direction of the waterproof ring and the plug;

[0019] A groove is formed on the plug, and one end of the groove abuts against the limiting rib.

[0020] The card slot and the card fitting are matched and configured.

[0021] Preferably, the plug has a recessed mounting groove, and the mounting groove is distributed in a ring on the plug;

[0022] The waterproof structure includes a waterproof ring; the waterproof ring is interference-fitted into the mounting groove;

[0023] The waterproof ring falls within the coverage area of ​​the end cap.

[0024] Preferably, the outer surface of the plug is formed with an external thread, and the external thread is located on the side of the mounting groove away from the pipe body;

[0025] The inner side of the end cap has an internal thread that mates with the external thread on the plug.

[0026] Preferably, it further includes:

[0027] A fixed structure is built into the tube body; the LED light board is fixed to the end face of the fixed structure, and the light emission direction of the LED light board is set outward.

[0028] Preferably, the longitudinal section of the fixing structure is semi-circular, and it is provided to avoid gaps with the lower end of the tube body;

[0029] The upper surface of the fixed structure is formed with a sliding groove for engaging the LED light panel, and the LED light panel can be slidably arranged along the length direction of the sliding groove.

[0030] Preferably, the inner side of the tube body has a protrusion forming a locking rib, and there are two locking ribs symmetrically distributed on the inner side of the tube body;

[0031] The top edge of the fixing structure abuts against the lower end of the locking rib and is slidably disposed along the length of the tube.

[0032] Preferably, the top edge of the fixing structure has an opening, and the opening direction of the opening is directed toward the bottom end of the fixing structure;

[0033] The plug is detachably connected to the pipe body and fixing structure by means of an external fastener passing through the opening.

[0034] As can be seen from the above, the following beneficial effects can be obtained by applying the technical solution provided by this utility model:

[0035] First, the tri-proof lamp tube proposed in this utility model achieves waterproof, dustproof and shockproof functions of LED lamp tube by integrating the end cap assembly and using a waterproof structure to make the gap between the end cap assembly and the tube body waterproof while maintaining the tightness between the end cap assembly and the tube body.

[0036] Secondly, the end cap assembly on the tri-proof lamp tube proposed in this utility model includes a plug, a waterproof ring, an end cap, and a waterproof ring. The waterproof ring and waterproof ring enable the integrated design of the end cap assembly to achieve its waterproofness. Furthermore, the positioning of the waterproof ring and waterproof ring prevents water from seeping in along the gaps between the plug and the tube body, as well as between the plug and the end cap.

[0037] Third, the tri-proof lamp tube proposed in this utility model maintains the structural fixation of the LED light board on it and the effective connection process with the end cover assembly through a fixed structure of a specific shape. At the same time, the fixed structure adopts a hollow structure, which maintains its normal use while reducing the weight of the tri-proof lamp tube.

[0038] Fourth, the three-proof lamp tube proposed in this utility model has a fixing structure that connects the tube body and the end cap assembly through fasteners. However, since the fasteners are inside the three-proof lamp tube, their setting will not create too many gaps on the product surface and cause water to seep in from multiple places. This application can improve the waterproofness of the product. Attached Figure Description

[0039] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is an exploded view of the LED tri-proof lamp tube in the embodiment of this utility model;

[0041] Figure 2 This is an exploded view of the LED tri-proof lamp tube end cap assembly in an embodiment of this utility model;

[0042] Figure 3 This is a schematic diagram of the end cap assembly of the LED tri-proof lamp tube in this embodiment of the present invention;

[0043] Figure 4 This is a partial cross-sectional view of the LED tri-proof lamp tube in the embodiment of this utility model;

[0044] Figure 5 This is a schematic diagram of the tube body and internal structure of the tri-proof lamp tube in this embodiment of the present invention. Detailed Implementation

[0045] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0046] The existing tri-proof lamp tube structure uses many external fasteners for fixing and connection, which not only makes the installation more complicated, but also has many gaps, resulting in the tri-proof lamp tube failing to meet the required waterproof rating.

[0047] like Figures 1-5 As shown, in order to solve the above problems, this embodiment proposes a tri-proof LED tube, including a tube body 10, an LED light board 20, an end cap assembly 30, and a waterproof connector 40; the tube body 10 has a hollow structure, and both ends of the tube body 10 are open ends; the LED light board 20 is built into the tube body 10; the end cap assembly 30 is detachably disposed at both ends of the tube body 10; a waterproof structure is interference-fitted between the outer side of the end cap assembly 30 and the inner side of the tube body 10; a through hole for the power supply connection wire is also formed on the end cap assembly 30; the waterproof structure is detachably disposed at the through hole of the end cap assembly 30.

[0048] Preferably, in this embodiment, the tube body 10 is made of a light-transmitting material, and the light-emitting surface of the LED light panel 20 faces outward from the tube body 10. Preferably, but not limited to, in this embodiment, the portion of the tube body 10 located on the light-emitting path of the LED light panel 20 is made of a light-transmitting material, and the remaining portion is made of a light-shielding material; or the entire tube body 10 is made of a light-transmitting material.

[0049] Preferably, in this embodiment, the tube body 10 is provided with a cylindrical hollow structure, the end cap assembly 30 is provided with a cylindrical structure, and the outer diameter of the end cap assembly 30 is approximately equal to the inner diameter of the tube body 10, so as to ensure that the end cap assembly 30 and the two ends of the tube body 10 are detachably connected.

[0050] Preferably, in this embodiment, the LED light panel 20 adopts a strip LED structure with the same length as the tube body 10, or it adopts multiple splicable LED strip structures to form the LED light panel 20.

[0051] Preferably, in this embodiment, the through hole on the end cap assembly 30 is a knock-out hole structure, and the waterproof structure is connected to the through hole by a thread.

[0052] Preferably, in this embodiment, the waterproof structure on the end cap assembly 30 is preferably made of a micro-deformable material such as silicone. Therefore, the waterproof structure can be deformed by extrusion to fill the gap between the end cap assembly 30 and the tube body 10.

[0053] In this embodiment, the tube body 10, the end cap assembly 30, and the waterproof connector 40 serve as the external structural components of the LED tube. Through the waterproof structure and the setting of the waterproof structure, the gaps of the structural components can be completely filled. Under the premise of ensuring the three-proof level of the LED tube, the structure of the LED tube is simplified, and too many fasteners are avoided, which can simplify the assembly steps of the LED tube.

[0054] More specifically, the end cap assembly 30 includes a plug 31, a terminal block 32, and an end cap 33; the plug 31 is a hollow structure with open ends; the terminal block 32 is built into the plug 31 and electrically connected to the LED light panel 20; the end cap 33 is fitted over the plug 31, and the end cap 33 has a through hole at the end away from the tube body 10; the waterproof structure includes a waterproof ring 51, and the waterproof ring 51 is fitted on the outer side of the end of the plug 31 near the tube body 10; the thickness of the waterproof ring 51 is greater than the difference between the inner diameter of the tube body 10 and the outer diameter of the plug 31, so that the waterproof ring 51 is interference fit between the inner side of the tube body 10 and the outer side of the plug 31.

[0055] Preferably, in this embodiment, the plug 31 is a hollow cylindrical structure; the end cap 33 is a hollow cylindrical structure with one end face open; and the waterproof ring 51 is an annular structure.

[0056] Preferably, in this embodiment, the outer side of the plug 31 protrudes to form a limiting rib 311, and the end of the end cap 33 is disposed abutting against one side of the limiting rib 311; one end of the waterproof ring 51 has an outer edge, and the outer edge is disposed abutting against the other side of the limiting rib 311. Preferably, but not limited to, in this embodiment, the height of the limiting rib 311 is equal to the height of the outer edge of the waterproof ring 51, and equal to the thickness of the end cap 33, so that the outer side of the end cap assembly 30 is flat.

[0057] Preferably, in this embodiment, the limiting ribs 311 are distributed in a ring on the outer side of the plug 31.

[0058] Preferably, in this embodiment, the outer edge of the waterproof ring 51 is clamped between the limiting rib 311 of the tube body 10 and the plug 31, while the rest of the structure of the waterproof ring 51 is covered by the tube body 10.

[0059] In this embodiment, the end cap assembly 30 is provided with a plug 31 and a limiting rib 311, which can limit the fitting range of the waterproof ring 51 and the end cap 33, thereby limiting the assembly structure of the end cap assembly 30 and ensuring that the assembled end cap assembly 30 can be installed with the tube body 10, thus ensuring the smooth assembly of the tri-proof LED tube and its waterproof performance.

[0060] More specifically, the inner side of the waterproof ring 51 has a protrusion forming a locking member 511, and the length direction of the locking member 511 is the fitting direction of the waterproof ring 51 and the plug 31; a groove 312 is formed on the plug 31, and one end of the groove 312 is abutted against the limiting rib 311; the groove 312 and the locking member 511 are matched.

[0061] Preferably, in this embodiment, the plug 31 is provided with two slots 312, and the two slots 312 are symmetrically distributed along the central axis of the plug 31; two engaging members 511 are formed on the inner side of the waterproof ring 51, and the two engaging members 511 are symmetrically distributed along the central axis of the waterproof ring 51.

[0062] Preferably, in this embodiment, the locking component 511 and the waterproof ring 51 are integrally formed from the same material, and both can undergo slight deformation. Preferably, but not limited to, in this embodiment, the locking component 511 is interference-fitted into the slot 312.

[0063] Preferably, in this embodiment, the other end of the slot 312 is an open end. When the engaging member 511 enters along the length direction of the slot 312, the waterproof ring 51 is gradually fitted onto the plug 31 until the engaging member 511 and the slot 312 are fully engaged, ensuring that the waterproof ring 51 is fitted onto the preset position of the plug 31.

[0064] In this embodiment, the engagement member 511 and the slot 312 can further enhance the friction between the waterproof ring 51 and the plug 31, and improve the tightness of the connection between the waterproof ring 51 and the plug 31.

[0065] More specifically, a recessed mounting groove 313 is formed on the plug 31, and the mounting groove 313 is distributed in a ring on the plug 31; the waterproof structure includes a waterproof ring 52, and the waterproof ring 52 is interference-fitted into the mounting groove 313; the waterproof ring 52 falls into the coverage area of ​​the end cap 33.

[0066] Preferably, in this embodiment, the height of the waterproof ring 52 is slightly greater than the depth of the mounting groove 313, so that the waterproof ring 52 is squeezed and deformed to fill the mounting groove 313.

[0067] Preferably, in this embodiment, the mounting groove 313 is a strip-shaped closed ring structure, but a segmented ring distribution structure can also be adopted.

[0068] Preferably, in this embodiment, the mounting groove 313 is positioned near the limiting rib 311.

[0069] In this embodiment, the waterproof ring 52 effectively prevents water from seeping in through the gap between the plug 31 and the end cap 33, further improving the waterproof performance of the end cap assembly 30 and the tri-proof LED tube.

[0070] More specifically, the outer surface of the plug 31 is formed with an external thread, and the external thread is located on the side of the mounting groove 313 away from the pipe body 10; the inner side of the end cap 33 is formed with an internal thread that mates with the external thread on the plug 31.

[0071] Preferably, in this embodiment, the internal thread of the end cap 33 is designed as a three-section break, which can simplify the mold.

[0072] In this embodiment, the plug 31 and the end cap 33 are connected by threads. Under the premise of deepening the thread connection, the end cap 33 gradually squeezes the waterproof ring 52 until the waterproof ring 52 is completely squeezed, thus completing the connection between the end cap 33 and the plug 31.

[0073] More specifically, it also includes a fixing structure 60 built into the tube body 10; the LED light board 20 is fixed to the end face of the fixing structure 60, and the light emission direction of the LED light board 20 is set outward.

[0074] Preferably, in this embodiment, the longitudinal section of the fixing structure 60 is semi-circular, and it is provided to avoid gaps with the lower end of the tube body 10. Preferably, but not limited to, in this embodiment, the radius of curvature of the lower end of the fixing structure 60 is equal to the radius of curvature of the tube body 10, thereby allowing the fixing structure 60 to rotate within the tube body 10 but preventing it from wobbling, thus ensuring the fixed light emission direction of the LED light panel 20.

[0075] Preferably, in this embodiment, the upper surface of the fixing structure 60 is flat and has a groove 61 for engaging the LED light panel 20; the LED light panel 20 can slide along the length of the groove 61. Preferably, but not limited to, in this embodiment, the groove 61 is recessed below the upper surface of the fixing structure 60, and the top of the groove 61 is an open end face, allowing the light from the LED light panel 20 to extend outward.

[0076] In this embodiment, by setting a fixed structure 60 of a specific shape, the fixing effect of the LED light board 20 on it can be guaranteed, thereby ensuring the normal use of the LED light.

[0077] More specifically, the inner side of the tube body 10 has a protrusion forming a locking rib 11, and there are two locking ribs 11, which are symmetrically distributed on the inner side of the tube body 10; the top edge of the fixing structure 60 abuts against the lower end of the locking rib 11, and the fixing structure 60 is slidably arranged along the length direction of the tube body 10.

[0078] Preferably, in this embodiment, the length of the fixing structure 60 is equal to the length of the tube body 10. Since the tube body 10 is provided with a locking rib 11 that abuts against the upper end face of the fixing structure 60, after the fixing structure 60 enters the tube body 10 with the locking rib 11 as the upper limit, the fixing structure 60 and the tube body 10 are kept relatively fixed under the assembly of the end cap assembly 30.

[0079] Preferably, in this embodiment, the lower end face of the locking rib 11 is a plane, and the locking rib 11 abuts against and is fixed to the edge of the upper end face of the fixing structure 60. Preferably, but not limited to, the protrusion height of the locking rib 11 is relatively low.

[0080] Preferably, in this embodiment, the height difference between the locking rib 11 and the lower end of the tube 10 is equal to the height of the fixing structure 60.

[0081] In this embodiment, the setting of the locking rib 11 enables the fixing structure 60 to be fixed vertically within the tube 10. Furthermore, due to the length setting of the fixing structure 60 and the tube 10, the fixing structure 60 is fixed horizontally within the tube 10. Therefore, after the fixing structure 60 and the tube 10 are assembled, they remain relatively stationary. In other words, the LED light panel 20 on the fixing structure 60 can achieve stable single-direction illumination and a constant illumination range.

[0082] More specifically, the top edge of the fixing structure 60 has an opening hole 62, and the opening direction of the opening hole 62 is set towards the bottom end of the fixing structure 60; the plug 31 is detachably connected to the pipe body 10 and the fixing structure 60 through the opening hole 62 by external fasteners.

[0083] Preferably, in this embodiment, the opening 62 is disposed in the opposite direction at the top edge of the fixing structure 60, that is, the entire opening 62 is located within the fixing structure 60. Preferably, but not limited to, the opening direction of the opening 62 is vertically downward.

[0084] Preferably, in this embodiment, there are two openings 62, which are symmetrically distributed along the central axis of the fixed structure 60. Preferably, but not limited to, the two openings 62 are of equal size and depth.

[0085] Preferably, in this embodiment, a half-baffle is provided on the end face of the plug 31 facing the tube body 10. The half-baffle is also provided with a through hole corresponding to the position of the opening hole 62. The external fastener is fixed after passing through the through hole and the opening hole 62 of the half-baffle in sequence, so as to realize the fixed installation of the plug 31 and the fixed structure 60, and thus realize the fixed installation of the plug 31 and the tube body 10.

[0086] In this embodiment, when the fastener is inserted and fixed to the opening 62, the plug 31 and the waterproof ring 51 on its outer side are fitted and fixed to the pipe body 10. As the fastener is gradually inserted, the waterproof ring 51 gradually deforms and fills the gap between the plug 31 and the pipe body 10.

[0087] In summary, this embodiment proposes a tri-proof LED tube. By setting two waterproof structures on the end cap assembly, the gaps in the LED tube are filled, improving the waterproof and dustproof performance of the LED tube. At the same time, by embedding the fastener structure into the LED tube, the generation of surface gaps is reduced.

[0088] The embodiments described above do not constitute a limitation on the scope of protection of this technical solution. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the above embodiments should be included within the scope of protection of this technical solution.

Claims

1. A tri-proof LED tube, characterized in that, include: The tube body has a hollow structure, and both ends of the tube body are open ends; LED light panel, built into the tube body; An end cap assembly is detachably mounted on both ends of the tube body; a waterproof structure is provided between the outer side of the end cap assembly and the inner side of the tube body; and a through hole is formed on the end cap assembly for the passage of a power supply connection line. A waterproof connector is detachably installed at the through hole of the end cap assembly.

2. The LED tri-proof lamp tube according to claim 1, characterized in that, The end cap assembly includes: The end cap is designed as a hollow structure open at both ends; The wiring terminal is built into the plug and is electrically connected to the LED light board; An end cap is fitted over the plug, and the end cap has a through hole at the end away from the tube body; The waterproof structure includes a waterproof ring, which is fitted onto the outer side of the end of the plug near the pipe body. The thickness of the waterproof ring is greater than the difference between the inner diameter of the pipe body and the outer diameter of the plug, so that the waterproof ring is interference-fitted between the inner side of the pipe body and the outer side of the plug.

3. The LED tri-proof lamp tube according to claim 2, characterized in that: The outer side of the plug protrudes to form a limiting rib, and the end of the end cap is disposed abutting against one side of the limiting rib; One end of the waterproof ring has an outer edge, and the outer edge is disposed abutting against the other side of the limiting rib.

4. The LED tri-proof lamp tube according to claim 3, characterized in that: The inner side of the waterproof ring has a protrusion forming a locking member, and the length direction of the locking member is the fitting direction of the waterproof ring and the plug. A groove is formed on the plug, and one end of the groove abuts against the limiting rib. The card slot and the card fitting are matched and configured.

5. The LED tri-proof lamp tube according to claim 2, characterized in that: The plug has a recessed mounting groove, and the mounting groove is distributed in a ring on the plug. The waterproof structure includes a waterproof ring; the waterproof ring is interference-fitted into the mounting groove; The waterproof ring falls within the coverage area of ​​the end cap.

6. The LED tri-proof lamp tube according to claim 5, characterized in that: The plug has an external thread on its outer surface, and the external thread is located on the side of the mounting groove away from the pipe body. The inner side of the end cap has an internal thread that mates with the external thread on the plug.

7. A tri-proof LED tube according to any one of claims 2 to 6, characterized in that, Also includes: A fixed structure is built into the tube body; the LED light board is fixed to the end face of the fixed structure, and the light emission direction of the LED light board is set outward.

8. The LED tri-proof lamp tube according to claim 7, characterized in that: The longitudinal section of the fixing structure is semi-circular, and it is designed to avoid gaps with the lower end of the tube. The upper surface of the fixed structure is formed with a sliding groove for engaging the LED light panel, and the LED light panel can be slidably arranged along the length direction of the sliding groove.

9. The LED tri-proof lamp tube according to claim 8, characterized in that: The inner side of the tube body has a protrusion forming a locking rib, and there are two locking ribs, which are symmetrically distributed on the inner side of the tube body; The top edge of the fixing structure abuts against the lower end of the locking rib, and the fixing structure is slidably disposed along the length of the tube.

10. The LED tri-proof lamp tube according to claim 9, characterized in that: An opening is formed at the top edge of the fixing structure, and the opening direction of the opening is set towards the bottom end of the fixing structure. The plug is detachably connected to the pipe body and fixing structure by means of an external fastener passing through the opening.