A circular position lamp and its assembly method

Abstract

The present invention discloses a circular position light, comprising a main housing, a lighting structure, a light guide assembly structure, and a lens structure. The main housing is provided with an inner cavity and an outer cavity. The lighting structure comprises a position light circuit board and a light guide tube. The position light circuit board is installed in the inner cavity. The light guide tube is provided with a first light guide segment and a second light guide segment. The second light guide segment is located in the inner cavity. The main body of the first light guide segment is located in the outer cavity. One end of the first light guide segment extends into the inner cavity. A position light sheet is provided on the position light circuit board. The light guide assembly structure is installed corresponding to the light guide tube. The lens structure comprises a light guide lens plate and an outer lens lampshade. The light guide lens plate is made of an opaque material and is provided with a first light shielding portion. A light guide opening is provided on the first light shielding portion corresponding to the main body of the first light guide segment. The light guide opening is provided with an inner lens strip. The outer lens lampshade is installed on the cavity opening of the outer cavity. The circular position light and its assembly method described in the present invention can be easily assembled to form a unique and novel lighting shape.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile lamps, and in particular to a circular position lamp and an assembling method thereof. Background Art

[0002] Position lights are a crucial component of automotive lighting, used to indicate a vehicle's presence and width. With the rapid development of the automotive industry, the light source for position lights has evolved from traditional halogen bulbs to LEDs, which offer advantages such as a small luminous area, high luminous flux, and energy efficiency. Currently, position lights on the market primarily utilize direct LED illumination and a milky white internal mirror. This lighting method requires a large number of LEDs, resulting in a grainy lighting effect and high cost. Furthermore, the visible LEDs can affect the vehicle's aesthetics during use.

[0003] For example, a patent application in China, titled "A Front Position Lamp Structure for Automobiles," has been published with publication number CN203464121U. The patent application includes a flexible circuit board connected to a control circuit and a mounting base with elastic retaining members corresponding to the LED light-emitting elements, within which the LED light-emitting elements are positioned. However, the position lamp in this patent application suffers from poor lighting effects and a common, unattractive design.

[0004] Therefore, it is necessary to provide a position lamp with better lighting effect, novel shape, low cost and high aesthetics. Summary of the Invention

[0005] The object of the present invention is to provide a circular position lamp and an assembly method thereof, wherein the circular position lamp has good lighting effect, novel shape, low cost and high aesthetics.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A circular position light comprises a main housing, a lighting structure, a light guide assembly structure, and a lens structure. The main housing is provided with an inner cavity and an outer cavity communicating with the inner cavity. The lighting structure comprises a position light circuit board and a light guide tube. The position light circuit board is mounted within the inner cavity. The light guide tube comprises a first light guide segment and a second light guide segment. The second light guide segment is disposed within the inner cavity, above the position light circuit board. The first light guide segment is in a ⌚ shape, with a main body of the first light guide segment disposed within the outer cavity. One end of the first light guide segment extends into the inner cavity and connects to the second light guide segment. A position light sheet is provided on the position light circuit board corresponding to the second light guide segment, so that the position light sheet irradiates light onto the second light guide segment. The second light guide segment then guides light to the first light guide segment, illuminating the first light guide segment. The light guide assembly structure is disposed within the main housing and mounted corresponding to the light guide tube, for positioning the light guide tube within the main housing.

[0008] The lens structure includes a light guide lens plate and an outer lens lampshade. The light guide lens plate is installed on the light guide assembly structure to guide the light emitted by the first light guide segment out of the main shell. The light guide lens plate is made of an opaque material and is provided with a first light shielding portion. A light guide port is provided on the first light shielding portion corresponding to the main body of the first light guide segment. The shape of the light guide port matches the shape of the main body of the first light guide segment. An inner lens strip is provided on the light guide port to guide the light emitted by the first light guide segment to the outer lens lampshade; the outer lens lampshade is installed on the cavity port of the outer cavity to irradiate light outward.

[0009] As a further technical solution of the present invention: the light guide assembly structure includes a light guide bracket base plate and a light guide shading plate, one end of the light guide bracket base plate extends into the inner cavity portion, and the other end is arranged in the outer cavity portion, and the light guide bracket base plate is provided with a positioning groove corresponding to the first light guide segment, so that the first light guide segment can be accommodated on the positioning groove; the light guide shading plate is installed on the light guide bracket base plate, and the light guide shading plate is provided with a light guide positioning portion, and a positioning bayonet is provided on the light guide positioning portion corresponding to the positioning groove, so that after the light guide shading plate is installed on the light guide bracket base plate, the positioning bayonet can correspond to the first light guide segment.

[0010] As a further technical solution of the present invention: a plurality of first connecting blocks are provided on the periphery of the base plate of the light guide bracket, and the light guide shading plate is provided with a second connecting block corresponding to the first connecting block, and the first bolt is passed through the second connecting block and connected to the first connecting block in sequence to the main shell, and the base plate of the light guide bracket is connected to the light guide shading plate and installed in the main shell.

[0011] As a further technical solution of the present invention: a plurality of first connecting holes are provided on the bottom plate of the light guide bracket, and a second connecting hole is provided on the light guide shading plate corresponding to the first connecting holes. The second bolt passes through the second connecting hole and the first connecting hole in sequence and is connected to the main shell, and the bottom plate of the light guide bracket is connected to the light guide shading plate and installed in the main shell.

[0012] As a further technical solution of the present invention: a plurality of assembly blocks are provided on the periphery of the base plate of the light guide bracket, and the assembly blocks are provided with latch holes or snap-fitting holes. The corresponding assembly blocks on the light guide lens plate are provided with latch parts or snap-fitting parts, so that when the light guide lens plate is installed on the light guide assembly structure, the light guide lens plate is installed corresponding to the latch holes or snap-fitting holes on the base plate of the light guide bracket through the latch parts or snap-fitting parts.

[0013] As a further technical solution of the present invention: through holes are provided on both the bottom plate of the optical guide bracket and the optical guide light shielding plate. When the bottom plate of the optical guide bracket and the optical guide light shielding plate are installed in the main housing, the through holes on the bottom plate of the optical guide bracket and the optical guide light shielding plate are in a straight line. A first assembly hole is provided in the main housing corresponding to the through hole, and a second assembly hole is provided in the light guide lens plate corresponding to the through hole, for a third bolt to sequentially pass through the first assembly hole, the through hole and the second assembly hole from outside the main housing, so as to install the light guide lens plate.

[0014] As a further technical solution of the present invention: one end of the first optical guide segment connecting the second optical guide segment is arc-shaped, the second optical guide segment is in a U-shape matching the first optical guide segment, and one end of the second optical guide segment connected to the first optical guide segment is two connecting arms arranged oppositely, and the connecting arms are arc-shaped. The other end of the second optical guide segment is arranged above the position lamp lamp sheet.

[0015] As a further technical solution of the present invention: there are two position lamp lamp sheets in total. An incident light port is formed at the connection of the other end of the second optical guide segment and each connecting arm, and each position lamp lamp sheet is correspondingly arranged below an incident light port.

[0016] As a further technical solution of the present invention: the lighting structure includes a heat dissipation mounting seat, the heat dissipation mounting seat is installed in the inner cavity part, and the position lamp circuit board is installed on the heat dissipation mounting seat, and the heat dissipation mounting seat dissipates heat from the position lamp circuit board.

[0017] In addition, it is necessary for the present invention to provide an assembly method for the U-shaped position lamp.

[0018] An assembly method for a U-shaped position lamp includes the following steps:

[0019] Step 1: Install the position lamp circuit board on the heat dissipation mounting seat, and then install the assembled two together into the inner cavity part of the main housing;

[0020] Step 2: Assemble the optical guide assembly structure and the optical guide tube correspondingly. Set the bottom plate of the optical guide bracket below the optical guide tube, place the first optical guide segment in the positioning groove, install the optical guide light shielding plate above the optical guide tube, and the positioning bayonet correspondingly engages with the first optical guide segment. Subsequently, install the bottom plate of the optical guide bracket and the optical guide light shielding plate into the main housing, so that the second optical guide segment is arranged in the inner cavity part, above the position lamp lamp sheet of the position lamp circuit board;

[0021] Step 3: Install the light guide lens plate on the optical guide assembly structure, and the inner lens strips on the light guide lens plate are in a straight line corresponding to the main body of the first optical guide segment; subsequently, install the outer lens lamp cover on the cavity opening of the outer cavity part.

[0022] Compared with the prior art, the beneficial effects of the present invention are: the present invention proposes a circular position lamp and an assembly method thereof, which can be easily assembled through the coordination between the main shell, the lighting structure, the light guide assembly structure and the lens structure, has a good lighting effect, and forms a unique and novel lighting shape with low cost and high aesthetics. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is an exploded view of the circular position light.

[0024] Figure 2 This is an exploded view of the lighting structure.

[0025] Figure 3 Schematic diagram of positioning the light guide for the light guide assembly structure.

[0026] Figure 4 Schematic diagram of the lighting structure installed in the main housing.

[0027] Figure 5 for Figure 3 Schematic diagram of the structure being installed into the main shell.

[0028] Figure 6 Schematic diagram of the light guide bracket base plate.

[0029] Figure 7 Schematic diagram of a light guide baffle.

[0030] Figure 8 For installing the light guide lens plate to Figure 5 Schematic diagram of the structure.

[0031] Figure 9 This is an exploded view of the light guide lens plate.

[0032] Figure 10 Schematic diagram of the back side of the light guide lens plate.

[0033] Figure 11 This is an overall schematic diagram of the circular position light.

[0034] Figure 12 Schematic diagram of a light guide. DETAILED DESCRIPTION

[0035] The following is a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the scope of protection of the present invention.

[0036] See also Figure 1 A circular position lamp includes a main housing 10, a light structure 20, a light guide assembly structure 30 and a lens structure 40. Figure 4The main housing 10 is provided with an inner cavity 11 and an outer cavity 12 communicating with the inner cavity 11. Figure 2 、 Figure 4 The lighting structure 20 includes a position light circuit board 21 and a light guide 22. The position light circuit board 21 is installed in the inner cavity 11. The light guide 22 has a first light guide segment 221 and a second light guide segment 222. The second light guide segment 222 is arranged in the inner cavity 11, above the position light circuit board 21. The first light guide segment 221 is in a V shape. The main body of the first light guide segment 221 is arranged in the outer cavity 12. One end of the first light guide segment 221 extends into the inner cavity 11 and is integrally connected to the second light guide segment 222. The position light circuit board 21 is provided with a position light piece 201 corresponding to the second light guide segment 222. The position light piece 201 irradiates light to the second light guide segment 222. The second light guide segment 222 guides light to the first light guide segment 221, causing the first light guide segment 221 to illuminate, forming a unique and novel lighting shape.

[0037] See Figure 3 、 Figure 5 The light guide assembly structure 30 is arranged in the main housing 10 and is installed corresponding to the light guide 22 to position the light guide 22 in the main housing 10. It includes a light guide bracket base plate 31 and a light guide light shielding plate 32. One end of the light guide bracket base plate 31 extends into the inner cavity 11, and the other end is arranged in the outer cavity 12. The light guide bracket base plate 31 is provided with a positioning groove 311 corresponding to the first light guide segment 221, so that the first light guide segment 221 is accommodated in the positioning groove 311; the light guide shielding plate 32 is provided with a positioning groove 311 corresponding to the first light guide segment 221. The light plate 32 is mounted on the light guide bracket base plate 31. The light guide light shielding plate 32 is provided with a light guide positioning portion 321 and a light guide light shielding portion 322 located at one end of the light guide positioning portion 321. The light guide positioning portion 321 is provided with a positioning bayonet 301 corresponding to the positioning groove 311. After the light guide light shielding plate 32 is mounted on the light guide bracket base plate 31, the positioning bayonet 301 engages with the first light guide segment 221 for positioning. The light guide light shielding portion 322 is located above the second light guide segment 222 to provide light shielding.

[0038] See Figure 8 、 Figure 9 and Figure 11The lens structure 40 includes a light guide lens plate 41 and an outer lens lampshade 42. The light guide lens plate 41 is installed on the light guide assembly structure 30 to guide the light emitted by the first light guide segment 221 out of the main shell 10. The light guide lens plate 41 is made of an opaque material and is provided with a first light shielding portion 411 corresponding to the first light guide segment 221 and a second light shielding portion 412 corresponding to the second light guide segment 222. A light guide port 401 is opened on the first light shielding portion 411 corresponding to the main body of the first light guide segment 221. The shape of the light guide port 401 matches the shape of the main body of the first light guide segment 221. An inner lens strip 402 is provided on the light guide port 401 to guide the light emitted by the first light guide segment 221 to the outer lens lampshade 42; the outer lens lampshade 42 is installed on the cavity opening of the outer cavity 12 to irradiate light outward.

[0039] Further, see Figure 3 、 Figure 6 and Figure 7 A plurality of first connecting blocks 51 are provided on the periphery of the light guide bracket base plate 31, and a second connecting block 52 is provided on the light guide shading plate 32 corresponding to the first connecting block 51. The first bolt passes through the second connecting block 52 and the first connecting block 51 in sequence and is connected to the main shell 10, connecting the light guide bracket base plate 31 and the light guide shading plate 32 and installing them into the main shell 10.

[0040] Furthermore, a plurality of first connection holes 53 are provided on the light guide bracket base plate 31, and a second connection hole 54 is provided on the light guide shading plate 32 corresponding to the first connection holes 53. The second bolt passes through the second connection hole 54 and the first connection hole 53 in sequence to connect to the main shell 10, and the light guide bracket base plate 31 is connected to the light guide shading plate 32 and installed in the main shell 10 to play a reinforcing role.

[0041] Further, see Figure 6 、 Figure 10 A plurality of assembly blocks 55 are provided on the periphery of the light guide bracket base plate 31. The assembly blocks 55 are provided with latch holes 551 or fastening holes 552. The corresponding assembly blocks 55 on the light guide lens plate 41 are provided with latch parts 561 or fastening parts 562. When the light guide lens plate 41 is installed on the light guide assembly structure 30, the light guide lens plate 41 is installed corresponding to the latch holes 551 or fastening holes 552 on the light guide bracket base plate 31 through the latch parts 561 or fastening parts 562.

[0042] Further, through holes 57 are formed in both the optical guide bracket base plate 31 and the optical guide light shielding plate 32. When the optical guide bracket base plate 31 and the optical guide light shielding plate 32 are installed in the main housing 10, the through holes 57 on the optical guide bracket base plate 31 and the optical guide light shielding plate 32 are in a straight line. A first assembly hole 58 corresponding to the through hole 57 is provided in the main housing 10, and a second assembly hole 59 corresponding to the through hole 57 is provided on the light guide lens plate 41, so that a third bolt passes through the first assembly hole 58, the through hole 57, and the second assembly hole 59 in sequence from outside the main housing 10, thereby installing the light guide lens plate 41.

[0043] Further, referring to Figure 12 , one end of the first optical guide section 221 connecting the second optical guide section 222 is arc-shaped. The second optical guide section 222 is in a U-shaped matching the first optical guide section 221. One end of the second optical guide section 222 connected to the first optical guide section 221 is two connecting arms 600 arranged oppositely, and the connecting arms 600 are arc-shaped. The other end of the second optical guide section 222 is arranged above the position lamp light sheet 201.

[0044] Further, there are two position lamp light sheets 201 in total. An incident light port 601 is formed at the connection of the other end of the second optical guide section 222 and each connecting arm 600. Each position lamp light sheet 201 is correspondingly arranged below an incident light port 601, so that the position lamp light sheet 201 can irradiate light onto the other end of the second optical guide section 222, guide the light from the incident light port 601 to the connecting arm 600, and guide the light along the connecting arm 600 to the first optical guide section 221.

[0045] Further, the optical guide tube 22 is provided with optical teeth 202 along the main body of the first optical guide section 221. The main body of the first optical guide section 221 includes the middle part and the other end of the first optical guide section 221, which is beneficial to the conduction of light.

[0046] Further, the inner lens strip 402 is an inner lens strip 402 with skin texture to achieve a frosted effect, making the lighting effect more uniform and textured.

[0047] Further, the lighting structure 20 further includes a heat dissipation mounting seat 23. The heat dissipation mounting seat 23 is installed in the inner cavity part 11, and the position lamp circuit board 21 is installed on the heat dissipation mounting seat 23, and the heat dissipation mounting seat 23 dissipates heat from the position lamp circuit board 21.

[0048] The assembling method of the loop-shaped position lamp includes the following steps:

[0049] Step 1: Install the position lamp circuit board 21 on the heat dissipation mounting seat 23, and then install the assembled two together into the inner cavity part 11 of the main housing 10;

[0050] Step 2: Assemble the light guide assembly structure 30 and the light guide 22 accordingly. Position the light guide support base 31 below the light guide 22, accommodate the first light guide segment 221 in the positioning groove 311, and install the light guide visor 32 above the light guide 22. The positioning bayonet 301 engages the first light guide segment 221. Subsequently, the light guide support base 31 and the light guide visor 32 are installed within the main housing 10 using a first bolt passing through the second connecting block 52 and the first connecting block 51, and a second bolt passing through the second connecting hole 54 and the first connecting hole 53. The second light guide segment 222 is positioned within the inner cavity 11, above the position light panel 201 of the position light circuit board 21.

[0051] Step 3: The light guide lens plate 41 is installed corresponding to the pin hole 551 or the fastening hole 552 on the bottom plate of the light guide bracket 31 through the pin member 561 or the fastening member 562, and the light guide lens plate 41 is installed on the light guide assembly structure 30 through the first assembly hole 58, the through hole 57 and the second assembly hole 59 from the outside of the main shell 10. The inner lens strip 402 on the light guide lens plate 41 is aligned with the main body of the first light guide segment 221; then, the outer lens lampshade 42 is installed on the cavity opening of the outer cavity portion 12 to complete the assembly of the circular position light.

[0052] As can be understood, the light-guiding process of the U-shaped position light is as follows: the two position light pieces 201 are illuminated. Light is evenly guided along the connecting arms 600 from the light inlet 601 formed at the connection between the other end of the second light-guiding segment 222 and each connecting arm 600 to the first light-guiding segment 221. The optical teeth 202 on the main body of the first light-guiding segment 221 facilitate light transmission. The light is then guided from the first light-guiding segment 221 to the inner lens strip 402 on the light-guiding lens plate 41. The inner lens strip 402 has a leather-textured finish to achieve a frosted effect, making the lighting effect more uniform and textured. The light then shines onto the outer lens lampshade 42, illuminating the outside world and forming a unique and novel U-shaped light pattern. Furthermore, during the light-guiding process, the light-guiding shading portion 322 of the light-guiding shading plate 32 shields the second light-guiding segment 222, providing light shielding and preventing light leakage, making the assembled U-shaped position light more aesthetically pleasing.

[0053] In summary, the circular position lamp and its assembly method of the present invention can be easily assembled through the cooperation between the main shell 10, the lighting structure 20, the light guide assembly structure 30 and the lens structure 40, with good lighting effect, and form a unique and novel lighting shape with low cost and high aesthetics.

[0054] As long as it does not violate the creative ideas of the present invention, any combination of various different embodiments of the present invention should be regarded as the content disclosed by the present invention; within the technical concept of the present invention, any simple modifications of the technical solution and any combination of different embodiments that do not violate the creative ideas of the present invention should be within the protection scope of the present invention.

Claims

1. A circular position light, characterized by: It includes a main housing (10), a lighting structure (20), a light guide assembly structure (30) and a lens structure (40). An inner cavity part (11) and an outer cavity part (12) communicating with the inner cavity part (11) are provided in the main housing (10). The lighting structure (20) includes a position light circuit board (21) and a light guide tube (22). The position light circuit board (21) is installed in the inner cavity part (11). The light guide tube (22) has a first light guide section (221) and a second light guide section (222). The second light guide section (222) is arranged in the inner cavity part (11) above the position light circuit board (21). The first light guide section (221) is in a U shape. The main body of the first light guide section (221) is arranged in the outer cavity part (12). One end of the first light guide section (221) extends into the inner cavity part (11) and is connected to the second light guide section (222). A position light lamp chip (201) is provided on the position light circuit board (21) corresponding to the second light guide section (222) for the position light lamp chip (201) to irradiate light onto the second light guide section (222). The second light guide section (222) guides the light to the first light guide section (221) to make the first light guide section (221) light up. The light guide assembly structure (30) is arranged in the main housing (10) and is correspondingly installed with the light guide tube (22) to position the light guide tube (22) in the main housing (10). The lens structure (40) includes a light guide lens plate (41) and an outer lens lamp cover (42). The light guide lens plate (41) is installed on the light guide assembly structure (30) to export the light emitted by the first light guide section (221) from the main housing (10). The light guide lens plate (cf. 41) is made of a light-impervious material. The light guide lens plate (41) has a first light-shielding part (411). A light guide port (401) is opened on the first light-shielding part (411) corresponding to the main body of the first light guide section (221). The shape of the light guide port (401) matches the shape of the main body of the first light guide section (221). An inner lens strip (402) is provided on the light guide port (401) to guide the light emitted by the first light guide section (221) to the outer lens lamp cover (42). The outer lens lamp cover (42) is installed on the cavity opening of the outer cavity part (12) to irradiate the light outward. One end of the first light guide section (221) connecting the second light guide section (222) is arc-shaped. The second light guide section (222) is in a U shape matching the first light guide section (221). The two ends of the second light guide section (222) connected to the first light guide section (221) are two opposite connecting arms (600). The connecting arms (600) are arc-shaped. The other end of the second light guide section (222) is arranged above the position light lamp chip (201). [[ID= The light guide assembly structure (30) comprises a light guide bracket base plate (31) and a light guide shading plate (32), one end of the light guide bracket base plate (31) extends into the inner cavity portion (11), and the other end is arranged in the outer cavity portion (12), and a positioning groove (311) corresponding to the first light guide segment (221) is provided on the light guide bracket base plate (31) so that the first light guide segment (221) can be accommodated in the positioning groove (311); the light guide shading plate (32) is installed on the light guide bracket base plate (31), and the light The light guide shading plate (32) is provided with a light guide positioning portion (321) and a light guide light shielding portion (322) provided on one end of the light guide positioning portion (321); a positioning bayonet (301) is provided on the light guide positioning portion (321) corresponding to the positioning groove (311), so that after the light guide shading plate (32) is installed on the light guide bracket bottom plate (31), the positioning bayonet (301) is correspondingly engaged with the first light guide segment (221); the light guide light shielding portion (322) is located above the second light guide segment (222) and plays a light shielding role; The lighting structure (20) includes a heat dissipation mounting seat (23), the heat dissipation mounting seat (23) is mounted in the inner cavity (11), the position light circuit board (21) is mounted on the heat dissipation mounting seat (23), and the two are assembled and mounted together in the inner cavity (11) of the main housing (10); The light guide assembly structure (30) is assembled correspondingly to the light guide tube (22); the light guide bracket base plate (31) is arranged below the light guide tube (22); the first light guide segment (221) is accommodated in the positioning groove (311); the light guide shading plate (32) is installed above the light guide tube (22); the positioning bayonet (301) is correspondingly engaged with the first light guide segment (221); the light guide bracket base plate (31) and the light guide shading plate (32) are installed in the main housing (10), so that the second light guide segment (222) is arranged in the inner cavity (11) and is located above the position light sheet (201) of the position light circuit board (21); The light guide lens plate (41) is mounted on the light guide assembly structure (30), and the inner lens strip (402) on the light guide lens plate (41) is aligned with the main body of the first light guide segment (221); the outer lens lampshade (42) is mounted on the cavity opening of the outer cavity portion (12).

2. The circular position light according to claim 1, characterized in that: A plurality of first connecting blocks (51) are provided on the periphery of the light guide bracket base plate (31), and the light guide shading plate (32) is provided with a second connecting block (52) corresponding to the first connecting block (51). A first bolt is sequentially passed through the second connecting block (52) and connected to the first connecting block (51) in the main housing (10), thereby connecting the light guide bracket base plate (31) and the light guide shading plate (32) and installing them in the main housing (10).

3. The circular position light according to claim 1, characterized in that: The light guide bracket base plate (31) is provided with a plurality of first connection holes (53), and the light guide shading plate (32) is provided with second connection holes (54) corresponding to the first connection holes (53). A second bolt is sequentially passed through the second connection holes (54) and the first connection holes (53) to connect to the main housing (10), thereby connecting the light guide bracket base plate (31) and the light guide shading plate (32) and installing them in the main housing (10).

4. The circular position light according to claim 1, characterized in that: A plurality of assembly blocks (55) are provided on the periphery of the light guide bracket base plate (31), and a latch opening (551) or a buckle opening (552) is provided on the assembly blocks (55). The corresponding assembly blocks (55) on the light guide lens plate (41) are provided with latch members (561) or buckle members (562), so that when the light guide lens plate (41) is mounted on the light guide assembly structure (30), the light guide lens plate (41) is mounted correspondingly to the latch opening (551) or the buckle opening (552) on the light guide bracket base plate (31) through the latch members (561) or the buckle members (562).

5. The circular position light according to claim 1, characterized in that: The light guide bracket base plate (31) and the light guide light shielding plate (32) are both provided with through holes (57). When the light guide bracket base plate (31) and the light guide light shielding plate (32) are installed in the main housing (10), the through holes (57) on the light guide bracket base plate (31) and the light guide light shielding plate (32) are in a straight line. A first assembly hole (58) is provided in the main housing (10) corresponding to the through hole (57). A second assembly hole (59) is provided in the light guide lens plate (41) corresponding to the through hole (57), so that a third bolt can pass through the first assembly hole (58), the through hole (57) and the second assembly hole (59) in sequence from the outside of the main housing (10), thereby installing the light guide lens plate (41).

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