A three-stage rotary shaft structure of a magnifying glass lamp

Abstract

The utility model discloses a magnifying glass lamp tertiary pivot structure, including lamp holder, first support subassembly, second support subassembly and third support subassembly, one side of lamp holder with the one end of first support subassembly carries out the rotary connection and can rotate around the radial of lamp holder to it relatively, the other end of first support subassembly with the one end of second support subassembly carries out the rotary connection and can swing left and right to it relatively, the other end of second support subassembly with third support subassembly through hovering pivot structure carries out the rotary connection of up and down swing direction and can hover naturally, and the rotary connection of lamp holder, first support subassembly, second support subassembly all is equipped with hollow channel to facilitate the power cord of connecting lamp holder can pass through in it. The utility model can realize the universal rotation of lamp holder, and can realize the hovering of lamp holder arbitrary angle and position, and the power cord can be built -in through the pivot center, and the whole is beautiful, and when rotating, will not produce the problem of pulling to the power cord.

Description

Technical Field

[0001] This utility model relates to the field of magnifying glass lamps, and in particular to a three-stage rotating shaft structure for magnifying glass lamps. Background Technology

[0002] Magnifying glass lamps typically consist of a lamp head, a foldable support rod assembly, and rotating components that facilitate rotation and connection. The lamp head assembly can be adjusted to multiple angles via the rotating components to meet different user scenarios. Magnifying glass lamps usually have a power cord, which can be either external or internal.

[0003] However, existing magnifying glass lamps typically have the following problems: 1. The lamp head can only rotate radially and swing up and down, but cannot swing horizontally left and right. When it is necessary to swing to the left or right, the entire magnifying glass lamp must be moved to the left or right, resulting in a large radius of rotation. It is not easy to quickly adjust to the required position and angle, making operation cumbersome. In addition, many magnifying glass lamps use external hand-tightening screws to adjust the tightness of the up and down rotating parts, which is very inconvenient in actual use, requiring adjustment each time. Some are locked internally with nuts, but over time, the friction decreases and loosening is easy to occur, causing the lamp head to sag due to its own weight, making it difficult to form an effective lock. Therefore, it is difficult to accurately position the working position, causing great inconvenience to consumers. 2. Most magnifying glass lamps on the market use external power cords, which are unsightly, greatly restrict the appearance, and have poor overall integrity. Some have internal power cords, but when the shaft rotates, the power cord will be repeatedly pulled and tightened, which may cause the insulation to break over time, posing a safety hazard. Utility Model Content

[0004] The purpose of this invention is to provide a three-stage rotating shaft structure for a magnifying glass lamp to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A three-stage rotating structure for a magnifying glass lamp includes a lamp head, a first support assembly, a second support assembly, and a third support assembly. One side of the lamp head is rotatably connected to one end of the first support assembly and can rotate radially relative to it. The other end of the first support assembly is rotatably connected to one end of the second support assembly and can swing left and right relative to it. The other end of the second support assembly is rotatably connected to the third support assembly via a hovering rotating shaft structure and can hover naturally. Hollow channels are provided at the rotatable connections of the lamp head, the first support assembly, and the second support assembly to allow the power cord connected to the lamp head to pass through.

[0007] As a preferred technical solution, the first support component includes:

[0008] An upper cover, with a lower cover connected below it;

[0009] A first support, located between the upper cover and the lower cover;

[0010] A first bushing and a second bushing, wherein the first bushing is sleeved on the outside of the second bushing and the two are arranged laterally, and the first bracket and the side of the lamp head are rotatably connected through the first bushing and the second bushing, so that the lamp head can rotate radially around the lamp head relative to the first support assembly.

[0011] As a preferred technical solution, the first support component further includes:

[0012] The third and fourth bushings are fitted outside the third bushing and are arranged vertically. The interior of both the third and second bushings is provided with a hollow channel that cooperates with the power cord.

[0013] As a preferred technical solution, the second support component includes:

[0014] Two first covers are fixedly connected on the left and right sides;

[0015] The second support is located between the adjacent first cover. The second support and the first support are rotatably connected by the third bushing and the fourth bushing, so that the first support assembly can swing left and right relative to the second support assembly.

[0016] As a preferred technical solution, the third support component includes:

[0017] Two second covers are fixedly connected on the left and right sides;

[0018] Two third supports are fixedly connected on the left and right sides. The two third supports are located between adjacent second covers. The two third supports are respectively located on the left and right sides of the two first covers and are rotatably connected to the left and right sides of the second supports through the hovering pivot structure, so that the second support component can swing up and down relative to the third support component and can naturally hover when it swings up and down to any angle.

[0019] As a preferred technical solution, the hovering pivot structure includes: a flat bolt, a flange gasket, a lock nut, and several flat gaskets and swivel-shaped gaskets. The second bracket has flat openings on both sides. The flat bolt is inserted into the flat opening of the second bracket. The flange gasket is fixedly connected to the third bracket and passes through the flat bolt. Flat gaskets are provided on both sides of the flange gasket. When rotating, the flat gaskets remain stationary and rub against the sides of the flange gasket. Swivel-shaped gaskets are provided on the outer side of the flat gaskets and are fixed by lock nuts.

[0020] As a preferred technical solution, the rotating connection between the lamp head and the first support assembly is further provided with a first limiting mechanism. The first limiting mechanism includes two first limiting blocks disposed on the end face of the first bracket, and a limiting riveting piece that is press-fitted to the first bushing and the second bushing. When the first bracket rotates relative to the lamp head, it can limit the radial rotation range around the lamp head through the cooperation of the limiting riveting piece and the two first limiting blocks.

[0021] As a preferred technical solution, a second limiting mechanism is also provided at the rotational connection between the first support component and the second support component. The second limiting mechanism includes two second limiting blocks disposed on the bottom surface of the first bracket and a fixing screw for fixing and connecting the two first covers. When the second bracket and the first bracket rotate relative to each other, the left and right swing range can be limited by the cooperation of the fixing screw and the two second limiting blocks.

[0022] As a preferred technical solution, a third limiting mechanism is also provided at the rotatable connection between the second support component and the third support component. The third limiting mechanism includes a limiting post provided on the third bracket and a limiting groove provided on the first cover. When the third bracket and the second bracket rotate relative to each other, the upper and lower swing range can be limited by the cooperation of the limiting post and the limiting groove.

[0023] The technical effects and advantages of this utility model are as follows:

[0024] The three-stage rotating shaft structure of the magnifying glass lamp provided by this utility model designs the rotating connection between the lamp head, the first support component, the second support component, and the third support component as a three-stage rotating shaft structure. This allows the lamp head to rotate radially and swing left and right, up and down, which is equivalent to a universal adjustment function. Furthermore, the rotating connection between the second support component and the third support component is designed as a hovering rotating shaft structure, which allows the lamp head to be hovered at any angle and position. The rotating connection between the lamp head, the first support component, and the second support component adopts a hollow design, allowing the power cord to pass through the center of the rotating shaft. This design is aesthetically pleasing and prevents the power cord from being pulled during rotation. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0026] Figure 2 for Figure 1 A schematic diagram of its decomposed structure.

[0027] Figure 3 for Figure 1 A longitudinal sectional view of the structure after omitting the lamp holder.

[0028] Figure 4 for Figure 1 A top-view sectional view of the structure after omitting the lamp head section.

[0029] Figure 5 This is a schematic diagram of the structure of the first support of this utility model.

[0030] Figure 6 This is a schematic diagram of the structure of the third support of this utility model.

[0031] Figure 7 This is a schematic diagram of the structure of the first cover of this utility model.

[0032] In the diagram: 1. Lamp holder; 2. First support assembly; 21. Upper cover; 22. First bracket; 221. First limiting block; 222. Second limiting block; 23. Lower cover; 24. First bushing; 25. Second bushing; 26. Third bushing; 27. Fourth bushing; 28. Limiting riveting piece; 3. Second support assembly; 31. First cover; 311. Limiting groove; 312. Mounting hole; 32. Second bracket; 33. Anti-loosening nut; 34. Flat bolt; 35. Flat washer; 36. Twisted washer; 4. Third support assembly; 41. Second cover; 42. Third bracket; 421. Limiting post; 44. Flange gasket; 45. Screw; 46. Hole plug; 5. Power cord. Detailed Implementation

[0033] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] like Figure 1-7 As shown, this embodiment provides a three-stage rotating structure for a magnifying glass lamp, including a lamp head 1, a first support component 2, a second support component 3, and a third support component 4. A power cord 5 is connected to the lamp head 1. One side of the lamp head 1 is rotatably connected to one end of the first support component 2 and can rotate radially relative to it. The other end of the first support component 2 is rotatably connected to one end of the second support component 3 and can swing left and right relative to it. The other end of the second support component 3 is rotatably connected to the third support component 4 through a hovering rotating shaft structure and can hover naturally. Hollow channels are provided at the rotatable connections of the lamp head 1, the first support component 2, and the second support component 3 so that the power cord 5 connected to the lamp head 1 can pass through them.

[0035] The three-stage rotating shaft structure of the magnifying glass lamp provided in this embodiment designs the rotating connection between the lamp head, the first support component, the second support component, and the third support component as a three-stage rotating shaft structure. This allows the lamp head to rotate radially and swing left and right, up and down, which is equivalent to a universal adjustment function. Furthermore, the rotating connection between the second support component and the third support component is designed as a hovering rotating shaft structure, which allows the lamp head to hover at any angle and position. The rotating connection between the lamp head, the first support component, and the second support component adopts a hollow design, allowing the power cord to pass through the center of the rotating shaft. This design is aesthetically pleasing and prevents the power cord from being pulled during rotation.

[0036] In a preferred embodiment, the first support assembly 2 includes: an upper cover 21, with a lower cover 23 connected below the upper cover 21; a first bracket 22 located between the upper cover 21 and the lower cover 23; a first bushing 24 and a second bushing 25, the first bushing 24 being sleeved on the outside of the second bushing 25 and the two being arranged laterally; the first bracket 22 being rotatably connected to the side of the lamp head 1 via the first bushing 24 and the second bushing 25, so that the lamp head 1 can rotate radially relative to the first support assembly 2. This design can cover and hide the first bracket 22 using the upper cover 21 and the lower cover 23 and provide protection.

[0037] As a preferred embodiment, the first support component 2 further includes a third bushing 26 and a fourth bushing 27. The fourth bushing 27 is fitted over the third bushing 26 and both are vertically oriented. Both the third bushing 26 and the second bushing 25 have hollow channels inside that cooperate with the power cord 5. This design employs a hollow bushing structure, allowing the power cord to pass through the center of the rotating shaft. This ensures that the power cord length remains essentially constant during rotation, eliminating the problem of the power cord being pulled or tightened during rotation. The built-in power cord also contributes to a pleasing overall appearance without compromising aesthetics.

[0038] In a preferred embodiment, the second support component 3 includes: two first covers 31 fixedly connected left and right; and a second bracket 32 ​​located between adjacent first covers 31. One end of the second bracket 32 ​​is located at the bottom of the first bracket 22 and the upper cover 21. The second bracket 32 ​​and the first bracket 22 are rotatably connected by a third bushing 26 and a fourth bushing 27, allowing the first support component 2 to swing left and right relative to the second support component 3. This design can cover and hide the second bracket 32 ​​using the two first covers 31 and provide protection.

[0039] As a preferred embodiment, the third support component 4 includes: two second covers 41 fixedly connected from left to right; and two third brackets 42 fixedly connected from left to right. The two third brackets 42 are located between adjacent second covers 41. The two third brackets 42 are respectively located on the left and right sides of the two first covers 31 and are rotatably connected to the left and right sides of the second brackets 32 through the hovering pivot structure, so that the second support component 3 can swing up and down relative to the third support component 4 and can naturally hover when swinging up and down to any angle. Further, preferably, the hovering pivot structure includes: a flat bolt 34, a flange gasket 44, a lock nut 33, and several flat gaskets 35 and swivel-shaped gaskets 36. The second bracket 32 ​​has flat openings on both sides. The flat bolt 34 is inserted into the flat opening of the second bracket 32. The flange gasket 44 is fixedly connected to the third bracket 42 and passes through the flat bolt 34. Flat gaskets 35 are provided on both sides of the flange gasket 44. When rotating, the flat gaskets 35 remain stationary and rub against both sides of the flange gasket 44. Swivel-shaped gaskets 36 are provided on the outer side of the flat gaskets 35 and are fixed by lock nuts 33. This design utilizes two second covers 41 to conceal and protect the two third supports 42. The two third supports 42 are rotatably connected to the left and right sides of the second supports 32 via a hovering pivot structure, facilitating hovering of the lamp head at any angle and position. The flat bolts 34, inserted into the flat opening, limit rotation during tightening. The flat gasket 35 remains stationary during rotation, rubbing against the sides of the flange gasket 44 to increase friction. A swivel-shaped gasket 36 is inserted outside the flat gasket 35, providing axial deflection. This maintains axial pressure during axial movement of the flat bolts 34, preventing loosening. Multiple swivel-shaped gaskets 36 can be used to provide appropriate pressure to prevent loosening. Lubricant can be added between the gaskets to improve the rotation feel and effectively reduce wear. This allows the hovering pivot structure (i.e., the upper and lower pivot structure) to maintain sufficient friction for extended periods without adjustment.

[0040] As a preferred embodiment, a first limiting mechanism is further provided at the rotatable connection between the lamp head 1 and the first support assembly 2. The first limiting mechanism includes two first limiting blocks 221 disposed on the end face of the first bracket 22, and a limiting riveting piece 28 that is press-fitted to the first bushing 24 and the second bushing 25. When the first bracket 22 rotates relative to the lamp head 1, it can limit the radial rotation range around the lamp head through the cooperation of the limiting riveting piece 28 and the two first limiting blocks 221. A second limiting mechanism is further provided at the rotatable connection between the first support assembly 2 and the second support assembly 3. The second limiting mechanism includes two second limiting blocks 222 disposed on the bottom surface of the first bracket 22, and a fixing screw for fixing the two first covers 31. When the second bracket 32 ​​rotates relative to the first bracket 22, it can limit the left and right swing range through the cooperation of the fixing screw and the two second limiting blocks 222. A third limiting mechanism is also provided at the rotatable connection between the second support assembly 3 and the third support assembly 4. The third limiting mechanism includes a limiting post 421 disposed on the third bracket 42 and a limiting groove 311 disposed on the first cover 31. When the third bracket 42 and the second bracket 32 ​​rotate relative to each other, the upper and lower swing range can be limited by the cooperation of the limiting post 421 and the limiting groove 311. This design enables the rotational limiting of the three-stage rotating shaft inside, avoiding wear caused by frictional contact of the outer shell, cover and other external parts during rotation.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A three-stage rotating shaft structure for a magnifying glass lamp, characterized in that, The lamp head (1), first support assembly (2), second support assembly (3) and third support assembly (4) are included. One side of the lamp head (1) is rotatably connected to one end of the first support assembly (2) and can rotate radially relative to it. The other end of the first support assembly (2) is rotatably connected to one end of the second support assembly (3) and can swing left and right relative to it. The other end of the second support assembly (3) is rotatably connected to the third support assembly (4) through a hovering pivot structure in the up and down swing direction and can hover naturally. The rotatable connection points of the lamp head (1), the first support assembly (2) and the second support assembly (3) are all provided with hollow channels so that the power cord (5) connected to the lamp head (1) can pass through them.

2. The three-stage rotating shaft structure for a magnifying glass lamp according to claim 1, characterized in that, The first support component (2) includes: Upper cover (21), and a lower cover (23) is connected below the upper cover (21); The first support (22) is located between the upper cover (21) and the lower cover (23); First bushing (24) and second bushing (25), the first bushing (24) is sleeved on the outside of the second bushing (25) and the two are arranged horizontally. The first bracket (22) and the side of the lamp head (1) are rotatably connected through the first bushing (24) and the second bushing (25) so that the lamp head (1) can rotate radially around the lamp head relative to the first support assembly (2).

3. The three-stage rotating shaft structure for a magnifying glass lamp according to claim 2, characterized in that, The first support component (2) further includes: The third bushing (26) and the fourth bushing (27) are fitted outside the third bushing (26) and are arranged vertically. The third bushing (26) and the second bushing (25) are both provided with hollow channels that cooperate with the power line (5).

4. The three-stage rotating shaft structure for a magnifying glass lamp according to claim 3, characterized in that, The second support component (3) includes: Two first covers (31) are fixedly connected on the left and right sides; The second bracket (32) is located between the adjacent first cover (31). One end of the second bracket (32) is located at the bottom of the first bracket (22) and the upper cover (21). The second bracket (32) and the first bracket (22) are rotatably connected by the third bushing (26) and the fourth bushing (27) so that the first support assembly (2) can swing left and right relative to the second support assembly (3).

5. The three-stage rotating shaft structure for a magnifying glass lamp according to claim 4, characterized in that, The third support component (4) includes: Two second covers (41) are fixedly connected on the left and right sides; Two third supports (42) are fixedly connected on the left and right sides. The two third supports (42) are located between adjacent second covers (41). The two third supports (42) are located on the left and right sides of the two first covers (31) respectively and are rotatably connected to the left and right sides of the second supports (32) through the hovering pivot structure, so that the second support component (3) can swing up and down relative to the third support component (4) and can naturally hover when swinging up and down to any angle.

6. The three-stage rotating shaft structure for a magnifying glass lamp according to claim 5, characterized in that, The hovering pivot structure includes: a flat bolt (34), a flange gasket (44), a lock nut (33), and several flat gaskets (35) and swivel-shaped gaskets (36). The second bracket (32) has flat openings on both sides. The flat bolt (34) is inserted into the flat opening of the second bracket (32). The flange gasket (44) is fixedly connected to the third bracket (42) and passes through the flat bolt (34). Flat gaskets (35) are provided on both sides of the flange gasket (44). When rotating, the flat gasket (35) remains stationary and rubs against both sides of the flange gasket (44). Swivel-shaped gaskets (36) are provided on the outer side of the flat gasket (35) and are fixed by lock nuts (33).

7. The three-stage rotating shaft structure for a magnifying glass lamp according to claim 2, characterized in that, The rotating connection between the lamp head (1) and the first support assembly (2) is also provided with a first limiting mechanism. The first limiting mechanism includes two first limiting blocks (221) disposed on the end face of the first bracket (22) and a limiting riveting piece (28) that is riveted to the first bushing (24) and the second bushing (25). When the first bracket (22) rotates relative to the lamp head (1), it can limit the radial rotation range around the lamp head through the cooperation of the limiting riveting piece (28) and the two first limiting blocks (221).

8. The three-stage rotating shaft structure for a magnifying glass lamp according to claim 4, characterized in that, A second limiting mechanism is provided at the rotational connection of the first support component (2) and the second support component (3). The second limiting mechanism includes two second limiting blocks (222) disposed on the bottom surface of the first bracket (22) and a fixing screw for fixing the two first covers (31). When the second bracket (32) and the first bracket (22) rotate relative to each other, the left and right swing range can be limited by the cooperation of the fixing screw and the two second limiting blocks (222).

9. The three-stage rotating shaft structure for a magnifying glass lamp according to claim 5, characterized in that, The second support component (3) and the third support component (4) are also provided with a third limiting mechanism at the rotational connection. The third limiting mechanism includes a limiting post (421) provided on the third bracket (42) and a limiting groove (311) provided on the first cover (31). When the third bracket (42) and the second bracket (32) rotate relative to each other, the upper and lower swing range can be limited by the cooperation of the limiting post (421) and the limiting groove (311).

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