Cylindrical shell bulb lamp

By improving the structural design of the cylindrical housing bulb, the lampshade can be quickly disassembled and assembled, and the lamp holder and base can be stably connected. This solves the problems of difficult maintenance and safety hazards in the existing technology, and improves maintenance efficiency and operational stability.

CN224229770UActive Publication Date: 2026-05-12NINGBO DUOLIPU IND & TRADE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO DUOLIPU IND & TRADE CO LTD
Filing Date
2025-07-29
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

The existing cylindrical bulb lamps have inconvenient lampshade assembly and disassembly, and the connection between the lamp holder and the lamp base is not stable, resulting in maintenance difficulties and safety hazards.

Method used

The lampshade is quickly assembled and disassembled by a combination of structures such as a first cylinder, positioning groove, positioning plate, locking groove, second cylinder, and arc-shaped column; the connection stability between the lamp head and lamp holder is improved by structures such as rubber ring, retaining ring, limiting groove, and limiting block.

Benefits of technology

It enables quick disassembly and assembly of the lampshade and a stable connection between the lamp holder and the lamp base, improving maintenance efficiency and operational stability while reducing safety hazards.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224229770U_ABST
Patent Text Reader

Abstract

The utility model belongs to the technical field of bulb lamps, and particularly relates to a bulb lamp with a cylindrical shell, which comprises the cylindrical shell, a lamp holder is fixedly connected to the inner wall of the cylindrical shell, a first cylinder is fixedly connected to the inner wall of the cylindrical shell, a positioning groove is formed in the bottom of the first cylinder, and a second cylinder is fixedly connected to the inner wall of the cylindrical shell. A lampshade is attached to the inner wall of the first cylinder. According to the bulb lamp with the cylindrical shell, a first cylinder, a positioning groove, a positioning plate, a locking groove, a second cylinder, a first rectangular hole and an arc-shaped column are matched, so that a maintainer can quickly complete disassembly and assembly of a lampshade by rotating the second cylinder, and then the maintainer can maintain a lamp panel in the bulb lamp or replace the lampshade more conveniently; meanwhile, after the lamp cap is screwed on the lamp holder, the rubber ring can press the surface of the lamp holder by rotating the second circular ring, and at the moment, the lamp cap in the lamp holder is not prone to rotating through friction force between the rubber ring and the lamp holder.
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Description

Technical Field

[0001] This utility model belongs to the field of bulb technology, specifically relating to a cylindrical bulb. Background Technology

[0002] LED bulbs are a new type of energy-saving lamp that uses LED technology, primarily used to replace traditional incandescent and electronic energy-saving lamps. Currently, cylindrical LED bulbs on the market are mainly composed of a cylindrical shell, a lampshade, a lamp holder, and a lamp panel. However, since the lampshade is mostly fixed to the shell with adhesive or bolts, repair personnel often need tools to disassemble and reassemble the lampshade when repairing the lamp panel or replacing it. This increases the difficulty of repair work, prolongs repair time, and reduces repair efficiency. Furthermore, because the lamp holder and base are only connected by threads, they often loosen due to vibration or impact during use, affecting the lighting effect and potentially causing the bulb to fall, posing a safety hazard. Utility Model Content

[0003] The purpose of this utility model is to provide a cylindrical housing bulb lamp, which solves the problems of inconvenient lamp cover disassembly and assembly and unstable connection between the lamp holder and the lamp base in existing cylindrical housing bulb lamps.

[0004] The specific technical solution adopted by this utility model is as follows:

[0005] A cylindrical bulb lamp includes a cylindrical shell, a lamp holder fixedly connected to the inner wall of the cylindrical shell, a first cylinder fixedly connected to the inner wall of the cylindrical shell, a positioning groove formed at the bottom of the first cylinder, a lampshade fitted against the inner wall of the first cylinder, a positioning plate fixedly connected to the surface of the lampshade, the inner wall of the cylindrical shell and the inner wall of the positioning groove both fitting against the surface of the positioning plate, a locking groove formed on the side of the positioning plate, a second cylinder fitted onto the surface of the cylindrical shell, first rectangular holes formed on both the left and right sides of the cylindrical shell, and an arc-shaped column fixedly connected to the inner wall of the second cylinder, the inner walls of the first rectangular holes and the inner walls of the locking groove both fitting against the surface of the arc-shaped column. The second cylinder has a groove on its upper surface, and a spring is fixedly connected to the bottom of the inner wall of the groove. A first ring is fitted on the surface of the cylindrical shell, and a connecting post is fixedly connected to the bottom of the first ring. The surface of the connecting post fits against the inner wall of the groove, and the bottom of the connecting post is fixedly connected to the upper surface of the spring. A fixing groove is formed on the upper surface of the first ring. A square post is fixedly connected to the surface of the cylindrical shell, and the surface of the square post fits against the inner wall of the fixing groove. A sealing ring is fixedly connected to the surface of the lampshade, and the upper surface of the sealing ring fits against the bottom of the cylindrical shell. A support frame is fixedly connected to the inner wall of the first cylinder, and a lamp plate is fixedly connected to the bottom of the support frame.

[0006] The present invention is further configured such that the length of the arc-shaped column is less than the length of the first rectangular hole, and the central angle of the arc-shaped column is 30°.

[0007] The present invention is further configured such that the elastic force of the spring is greater than the sum of the weights of the first ring and the connecting post.

[0008] The present invention is further configured such that a third cylinder is fixedly connected to the upper surface of the cylindrical shell, a rubber ring is fitted to the inner wall of the third cylinder, a retaining ring is fixedly connected to the inner wall of the third cylinder, the upper and lower sides of the rubber ring are respectively fitted to the bottom of the retaining ring and the upper surface of the cylindrical shell, a limiting groove is formed on the surface of the rubber ring, a limiting block is fixedly connected to the inner wall of the third cylinder, the surface of the limiting block is fitted to the inner wall of the limiting groove, a second ring is sleeved on the surface of the third cylinder, a semi-circular block is fixedly connected to the inner wall of the second ring, a second rectangular hole is formed on the surface of the third cylinder, an arc-shaped groove is formed on the surface of the rubber ring, and the inner walls of the arc-shaped groove and the inner walls of the second rectangular hole are both fitted to the surface of the semi-circular block.

[0009] The present invention is further configured such that the center of the arc-shaped groove coincides with the center of the semicircular block, and the radius of the semicircular block is greater than the thickness of the third cylinder.

[0010] The present invention is further configured such that the axis of the rubber ring coincides with the axis of the lamp holder, and the ring width of the rubber ring is greater than the ring width of the retaining ring.

[0011] The technical effects achieved by this utility model are as follows:

[0012] This utility model discloses a cylindrical housing bulb lamp. Through the cooperation of a first cylinder, a positioning groove, a positioning plate, a locking groove, a second cylinder, a first rectangular hole, and an arc-shaped column, maintenance personnel can quickly disassemble and assemble the lamp cover by rotating the second cylinder. This makes it more convenient for maintenance personnel to repair the lamp board inside the bulb lamp or replace the lamp cover. At the same time, when the arc-shaped column is inserted into the locking groove, the spring's pushing force on the connecting column can make the fixing groove and the square column make tight contact. At this time, through the cooperation of the fixing groove, the square column, the connecting column, and the groove, the second cylinder can be locked, and the lamp cover can be stably fixed on the cylindrical housing.

[0013] This utility model discloses a cylindrical housing bulb lamp. Through the cooperation of a third cylinder, a rubber ring, a retaining ring, a limiting groove, a limiting block, a second ring, a semi-circular block, a second rectangular hole, and an arc-shaped groove, the user can press the rubber ring against the surface of the lamp holder by rotating the second ring after screwing the lamp head onto the lamp holder. At this time, the friction between the rubber ring and the lamp holder makes it difficult for the lamp head inside the lamp holder to rotate, thus preventing the lamp head from loosening with the lamp holder, thereby improving the stability and reliability of the bulb lamp after installation. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a left view of the structure of this utility model;

[0016] Figure 3 yes Figure 2 Sectional view at point AA;

[0017] Figure 4 yes Figure 3 Enlarged view at point B in the middle;

[0018] Figure 5 yes Figure 3 Enlarged view at point C;

[0019] Figure 6 yes Figure 3 Sectional view at point DD;

[0020] Figure 7 yes Figure 3 Sectional view at EE;

[0021] Figure 8 This is a left view of the cylindrical shell in this utility model;

[0022] Figure 9 This is a left view of the first cylinder in this utility model;

[0023] Figure 10 This is a bottom view of the first cylinder in this utility model;

[0024] Figure 11 This is a left view of the lampshade in this utility model;

[0025] Figure 12 This is a front view of the lampshade in this utility model;

[0026] Figure 13 This is a top view of the second cylinder in this utility model;

[0027] Figure 14 This is a top view of the first ring in this utility model;

[0028] Figure 15 This is a front view of the support frame in this utility model;

[0029] Figure 16 This is a top view of the rubber ring in this utility model.

[0030] The attached diagram lists the components represented by each number as follows:

[0031] 1. Cylindrical housing; 2. Lamp holder; 3. First cylinder; 4. Positioning groove; 5. Lampshade; 6. Positioning plate; 7. Locking groove; 8. Second cylinder; 9. First rectangular hole; 10. Arc-shaped column; 11. Groove; 12. Spring; 13. First ring; 14. Connecting column; 15. Fixing groove; 16. Square column; 17. Sealing ring; 18. Support frame; 19. Lamp panel; 20. Third cylinder; 21. Rubber ring; 22. Retaining ring; 23. Limiting groove; 24. Limiting block; 25. Second ring; 26. Semicircular block; 27. Second rectangular hole; 28. Arc-shaped groove. Detailed Implementation

[0032] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0033] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0034] like Figures 1 to 15As shown, a cylindrical bulb lamp includes a cylindrical shell 1, a lamp holder 2 fixedly connected to the inner wall of the cylindrical shell 1, a first cylinder 3 fixedly connected to the inner wall of the cylindrical shell 1, a positioning groove 4 formed at the bottom of the first cylinder 3, a lamp cover 5 fitted against the inner wall of the first cylinder 3, a positioning plate 6 fixedly connected to the surface of the lamp cover 5, the inner wall of the cylindrical shell 1 and the inner wall of the positioning groove 4 both fitting against the surface of the positioning plate 6, a locking groove 7 formed on the side of the positioning plate 6, a second cylinder 8 sleeved on the surface of the cylindrical shell 1, first rectangular holes 9 formed on both the left and right sides of the cylindrical shell 1, an arc-shaped column 10 fixedly connected to the inner wall of the second cylinder 8, the inner wall of the first rectangular hole 9 and the inner wall of the locking groove 7 both fitting against the surface of the arc-shaped column 10, the second cylinder... A groove 11 is provided on the upper surface of the cylinder 8. A spring 12 is fixedly connected to the bottom of the inner wall of the groove 11. A first ring 13 is fitted on the surface of the cylindrical shell 1. A connecting post 14 is fixedly connected to the bottom of the first ring 13. The surface of the connecting post 14 is in contact with the inner wall of the groove 11. The bottom of the connecting post 14 is fixedly connected to the upper surface of the spring 12. A fixing groove 15 is provided on the upper surface of the first ring 13. A square post 16 is fixedly connected to the surface of the cylindrical shell 1. The surface of the square post 16 is in contact with the inner wall of the fixing groove 15. A sealing ring 17 is fixedly connected to the surface of the lampshade 5. The upper surface of the sealing ring 17 is in contact with the bottom of the cylindrical shell 1. A support frame 18 is fixedly connected to the inner wall of the first cylinder 3. A lamp plate 19 is fixedly connected to the bottom of the support frame 18.

[0035] The length of the arc-shaped column 10 is less than the length of the first rectangular hole 9, the central angle of the arc-shaped column 10 is 30°, and the elastic force of the spring 12 is greater than the sum of the weights of the first ring 13 and the connecting column 14.

[0036] It should be noted that when the positioning plate 6 is inserted into the positioning groove 4, the lampshade 5 cannot rotate due to the cooperation between the positioning plate 6 and the positioning groove 4, and the arc-shaped column 10 can slide in the first rectangular hole 9. When the arc-shaped column 10 is inserted into the locking groove 7, the lampshade 5 can be fixed on the columnar housing 1 through the cooperation of the arc-shaped column 10, the locking groove 7, the positioning plate 6 and the positioning groove 4. When the arc-shaped column 10 is separated from the locking groove 7, the lampshade 5 can be directly separated from the columnar housing 1.

[0037] The diameter of the connecting post 14 is equal to the width of the groove 11. Through the cooperation of the connecting post 14 and the groove 11, the first ring 13 can only move up and down. When the arc-shaped post 10 is inserted into the locking groove 7 and the fixing groove 15 is aligned with the square post 16, the spring 12 pushes the connecting post 14 to make the fixing groove 15 and the square post 16 in close contact. At this time, through the cooperation of the fixing groove 15 and the square post 16, the first ring 13 cannot rotate, and through the cooperation of the connecting post 14 and the groove 11, the second cylinder 8 cannot rotate. At this time, the arc-shaped post 10 can be locked in the locking groove 7, and the lampshade 5 can be stably fixed on the columnar housing 1. After the lampshade 5 is fixed on the columnar housing 1, the gap between the lampshade 5 and the columnar housing 1 can be sealed by the sealing ring 17.

[0038] The frictional force between the first ring 13 and the cylindrical shell 1 is greater than 1N. Through the frictional force between the first ring 13 and the cylindrical shell 1, the first ring 13 will not jump up and down when the bulb vibrates.

[0039] like Figures 1 to 16 As shown, a third cylinder 20 is fixedly connected to the upper surface of the cylindrical shell 1. A rubber ring 21 is fitted to the inner wall of the third cylinder 20. A retaining ring 22 is fixedly connected to the inner wall of the third cylinder 20. The upper and lower sides of the rubber ring 21 are fitted to the bottom of the retaining ring 22 and the upper surface of the cylindrical shell 1, respectively. A limiting groove 23 is formed on the surface of the rubber ring 21. A limiting block 24 is fixedly connected to the inner wall of the third cylinder 20. The surface of the limiting block 24 is fitted to the inner wall of the limiting groove 23. A second ring 25 is sleeved on the surface of the third cylinder 20. A semi-circular block 26 is fixedly connected to the inner wall of the second ring 25. A second rectangular hole 27 is formed on the surface of the third cylinder 20. An arc groove 28 is formed on the surface of the rubber ring 21. The inner wall of the arc groove 28 and the inner wall of the second rectangular hole 27 are both fitted to the surface of the semi-circular block 26.

[0040] Among them, the center of the arc groove 28 coincides with the center of the semicircular block 26, the radius of the semicircular block 26 is greater than the thickness of the third cylinder 20, the axis of the rubber ring 21 coincides with the axis of the lamp head 2, and the ring width of the rubber ring 21 is greater than the ring width of the retaining ring 22.

[0041] It should be noted that the semicircular block 26 and the second rectangular hole 27 cooperate to prevent the second ring 25 from moving up and down on the third cylinder 20. The semicircular block 26 can slide within the second rectangular hole 27. The limiting block 24 and the limiting groove 23 cooperate to prevent the rubber ring 21 from rotating within the third cylinder 20. The retaining ring 22 limits the rubber ring 21. When the semicircular block 26 is in contact with the arc groove 28, there is a certain gap between the rubber ring 21 and the lamp holder. When the semicircular block 26 is misaligned with the arc groove 28, part of the rubber ring 21 will press against the surface of the lamp holder. At this time, the friction between the rubber ring 21 and the lamp holder makes it difficult for the lamp head 2 inside the lamp holder to rotate, thus making it difficult for the lamp head 2 to loosen with the lamp holder, thereby improving the stability and reliability of the bulb lamp after installation.

[0042] The frictional force between the semicircular block 26 and the rubber ring 21 must be greater than 3N to prevent the second ring 25 from rotating during vibration. At the same time, the frictional force between the rubber ring 21 and the lamp holder must be greater than 1.6N to ensure a stable connection between the lamp head 2 and the lamp holder.

[0043] The working principle of this utility model is as follows: First, screw the lamp head 2 onto the lamp holder. Then, by rotating the second ring 25, the semicircular block 26 is displaced from the arc groove 28. At this time, the semicircular block 26 presses part of the rubber ring 21 against the surface of the lamp holder. Through the friction between the rubber ring 21 and the lamp holder, the lamp head 2 inside the lamp holder is not easy to rotate.

[0044] When it is necessary to disassemble the bulb, first rotate the second ring 25 to align the semicircular block 26 with the arc groove 28, and use the elasticity of the rubber ring 21 itself to prevent the rubber ring 21 from pressing on the lamp holder. Then, the bulb can be disassembled by unscrewing the lamp head 2 from the lamp holder.

[0045] When it is necessary to disassemble the lampshade 5, first move the first ring 13 to separate the fixing groove 15 from the square post 16, and then rotate the first ring 13 to turn the arc-shaped post 10 out of the locking groove 7, thus completing the disassembly of the lampshade 5.

[0046] When the lampshade 5 needs to be installed, first insert the positioning plate 6 on the lampshade 5 into the positioning groove 4, and align the locking groove 7 with the arc-shaped column 10. Then, by rotating the first ring 13, the arc-shaped column 10 is rotated into the locking groove 7. When the fixing groove 15 is aligned with the square column 16, the spring 12 pushes the connecting column 14, which makes the fixing groove 15 and the square column 16 in close contact. At this time, the first ring 13 cannot be rotated by the cooperation of the fixing groove 15 and the square column 16, and the arc-shaped column 10 can be locked in the locking groove 7 by the cooperation of the connecting column 14 and the groove 11. At the same time, the lampshade 5 can be fixed on the columnar housing 1 by the cooperation of the arc-shaped column 10 and the locking groove 7.

[0047] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A cylindrical housing bulb lamp, characterized in that: The system includes a cylindrical shell (1), a lamp holder (2) fixedly connected to the inner wall of the cylindrical shell (1), a first cylinder (3) fixedly connected to the inner wall of the cylindrical shell (1), a positioning groove (4) provided at the bottom of the first cylinder (3), a lampshade (5) fitted to the inner wall of the first cylinder (3), a positioning plate (6) fixedly connected to the surface of the lampshade (5), the inner wall of the cylindrical shell (1) and the inner wall of the positioning groove (4) both fitting to the surface of the positioning plate (6), a locking groove (7) provided on the side of the positioning plate (6), a second cylinder (8) fitted onto the surface of the cylindrical shell (1), first rectangular holes (9) provided on both the left and right sides of the cylindrical shell (1), an arc-shaped column (10) fixedly connected to the inner wall of the second cylinder (8), the inner wall of the first rectangular hole (9) and the inner wall of the locking groove (7) both fitting to the surface of the arc-shaped column (10), and a locking groove (7) provided on the upper surface of the second cylinder (8). A groove (11) is provided, and a spring (12) is fixedly connected to the bottom of the inner wall of the groove (11). A first ring (13) is fitted on the surface of the columnar shell (1). A connecting post (14) is fixedly connected to the bottom of the first ring (13). The surface of the connecting post (14) is in contact with the inner wall of the groove (11). The bottom of the connecting post (14) is fixedly connected to the upper surface of the spring (12). A fixing groove (15) is opened on the upper surface of the first ring (13). A square post (16) is fixedly connected to the surface of the columnar shell (1). The surface of the square post (16) is in contact with the inner wall of the fixing groove (15). A sealing ring (17) is fixedly connected to the surface of the lampshade (5). The upper surface of the sealing ring (17) is in contact with the bottom of the columnar shell (1). A support frame (18) is fixedly connected to the inner wall of the first cylinder (3). A lamp plate (19) is fixedly connected to the bottom of the support frame (18).

2. A cylindrical housing bulb lamp according to claim 1, characterized in that: The length of the arc-shaped column (10) is less than the length of the first rectangular hole (9), and the central angle of the arc-shaped column (10) is 30°.

3. A cylindrical housing bulb lamp according to claim 1, characterized in that: The elastic force of the spring (12) is greater than the sum of the weights of the first ring (13) and the connecting post (14).

4. A cylindrical housing bulb lamp according to claim 1, characterized in that: A third cylinder (20) is fixedly connected to the upper surface of the cylindrical shell (1). A rubber ring (21) is fitted to the inner wall of the third cylinder (20). A retaining ring (22) is fixedly connected to the inner wall of the third cylinder (20). The upper and lower sides of the rubber ring (21) are respectively fitted to the bottom of the retaining ring (22) and the upper surface of the cylindrical shell (1). A limiting groove (23) is formed on the surface of the rubber ring (21). A limiting block (24) is fixedly connected to the inner wall of the third cylinder (20). The surface of the limiting block (24) is in contact with the inner wall of the limiting groove (23). The surface of the third cylinder (20) is fitted with a second ring (25). The inner wall of the second ring (25) is fixedly connected with a semi-circular block (26). The surface of the third cylinder (20) is provided with a second rectangular hole (27). The surface of the rubber ring (21) is provided with an arc groove (28). The inner wall of the arc groove (28) and the inner wall of the second rectangular hole (27) are both in contact with the surface of the semi-circular block (26).

5. A cylindrical housing bulb lamp according to claim 4, characterized in that: The center of the arc groove (28) coincides with the center of the semicircular block (26), and the radius of the semicircular block (26) is greater than the thickness of the third cylinder (20).

6. A cylindrical housing bulb lamp according to claim 4, characterized in that: The axis of the rubber ring (21) coincides with the axis of the lamp holder (2), and the ring width of the rubber ring (21) is greater than the ring width of the retaining ring (22).