Light guide fixing device

Abstract

The utility model discloses a light guide fixing device, which belongs to the technical field of automobile parts and comprises a mounting seat, a containing cavity is arranged in the mounting seat, the mounting seat is provided with a wiring hole and a mounting hole which are communicated with the containing cavity, the mounting hole is used for fixing a light guide, and the mounting seat is provided with a clamping groove communicated with the side of the mounting hole. The mounting base is provided with a limiting block and a first hooking block which are arranged around the mounting hole, the limiting block is arranged at the bottom end of the mounting hole and at least partially located in the mounting hole so as to abut against the end of the light guide, one end of the first hooking block is connected with the inner wall of the clamping groove, the other end of the first hooking block is provided with a first hook part, and the first hook part is at least partially located in the mounting hole; therefore, the installation of the light guide is firmer, simpler and more convenient.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, and in particular to a light guide fixing device. Background Technology

[0002] With the development of technology, automotive lighting technology is also constantly improving, and light guides, as components that guide the light emitted by a light source to the location where light needs to be emitted, are widely used in automobiles.

[0003] In related technologies, optical guides are generally fixed by adhesive bonding, which is a complex installation process and the fixation of the optical guides is not very secure. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a light guide fixing device, which makes the installation of the light guide more secure and convenient.

[0005] The light guide fixing device according to an embodiment of the present utility model includes: a mounting base having a receiving cavity, the mounting base having a wiring hole and a mounting hole communicating with the receiving cavity, the mounting hole being used to fix the light guide, the mounting base having a slot communicating with the side of the mounting hole, the mounting base having a limiting block and a first hook block arranged around the mounting hole, the limiting block being located at the bottom end of the mounting hole and at least partially located within the mounting hole for abutting against the end of the light guide, one end of the first hook block being connected to the inner wall of the slot, and the other end having a first hook portion, the first hook portion being at least partially located within the mounting hole for abutting against the side wall of the light guide.

[0006] The light guide fixing device according to the embodiment of this utility model has at least the following beneficial effects: The mounting base has a receiving cavity for accommodating components such as circuit boards. The mounting base has a wiring hole and a mounting hole communicating with the receiving cavity. The wiring hole can be used for wiring to connect cables to the circuit board. The mounting hole is used to fix the light guide so that the light guide is opposite to the circuit board to achieve light transmission. The mounting base has a slot communicating with the side of the mounting hole. One end of the first hook block is connected to the inner wall of the slot, and the other end has a first hook portion, which is at least partially located within the mounting hole. During installation, the installer can form a groove on the outer periphery of the light guide and then insert the light guide into the mounting hole. The optical guide's groove abuts against the first hook of the first hook block, which applies radial pressure to the optical guide, causing it to engage and securely fasten within the mounting hole. The first hook engages with the groove, improving the connection stability between the first hook block and the optical guide and making the installation more secure. A limiting block is located at the bottom of the mounting hole and is at least partially within it. The limiting block abuts against the end of the optical guide, limiting the depth of insertion into the mounting hole and indicating to the installer that the optical guide has been inserted to the preset depth. This optical guide fixing device achieves installation by engaging the optical guide, making the installation more secure and simpler and more convenient.

[0007] According to some embodiments of the present invention, the inner wall of the mounting hole is provided with a guide block, the guide block is disposed opposite to the first hook block, and the guide block has a guide plane facing the first hook block.

[0008] According to some embodiments of this utility model, multiple limiting blocks are provided, and the multiple limiting blocks are arranged around the axis of the mounting hole.

[0009] According to some embodiments of the present invention, the mounting base includes an upper cover and a lower cover. The mounting hole, the slot, the limiting block and the first hook block are all provided on the upper cover. The upper cover and the lower cover are detachably connected to jointly define the accommodating cavity and the wiring hole.

[0010] According to some embodiments of the present invention, the upper cover has upward-facing slots at both ends facing away from it, and the inner wall of the slots has a first locking block. The lower cover has buckles at both ends facing away from it, and the buckles have first buckle grooves. The buckles can enter and exit the slots, and the first locking block can engage or disengage with the first buckle groove.

[0011] According to some embodiments of the present invention, the inner peripheral wall of the top cover is provided with a plurality of first positioning blocks arranged in a plane, and an installation space for mounting a circuit board is constructed between the plurality of first positioning blocks.

[0012] And / or, the lower cover is provided with a plurality of second positioning blocks arranged in a plane. When the lower cover is connected to the upper cover, the second positioning blocks are located in the receiving cavity, and the ends of the plurality of second positioning blocks facing the upper cover together define a mounting plane for abutting the circuit board.

[0013] According to some embodiments of the present invention, a fixing seat is also included. The fixing seat is used to fix the vehicle body. The fixing seat is provided with a mounting groove. The mounting seat is embedded in the mounting groove and is detachably connected to the fixing seat.

[0014] According to some embodiments of the present invention, the fixing seat has a positioning shaft disposed in the mounting groove, the mounting seat has a positioning hole, and the positioning shaft passes through the positioning hole.

[0015] According to some embodiments of the present invention, the fixing base is provided with a second hook block, and the end of the second hook block facing the mounting base is provided with a second hook portion, which can hook or separate from the outer wall surface of the mounting base.

[0016] According to some embodiments of the present invention, the inner wall of the mounting groove is provided with a second snap groove, and the outer wall of the mounting base is provided with a second locking block, which can engage or disengage with the second snap groove.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0019] Figure 1 This is a schematic diagram of the connection between the mounting base and the fixing base of the optical guide fixing device according to an embodiment of the present invention;

[0020] Figure 2 This is a top view of the connection between the mounting base and the fixing base of the optical guide fixing device according to an embodiment of the present invention;

[0021] Figure 3 for Figure 2 The image shows a cross-sectional view of the optical guide fixing device (AA section).

[0022] Figure 4 for Figure 2 The image shows a BB cross-sectional view of the optical guide fixing device.

[0023] Figure 5 This is a schematic diagram of the structure of the optical guide fixing device according to an embodiment of the present invention, showing the separation of the mounting base and the fixing base;

[0024] Figure 6 This is an exploded view of the mounting base of the optical guide fixing device according to an embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the structure of the upper cover of the optical guide fixing device according to an embodiment of the present invention;

[0026] Figure 8 This is a schematic diagram of the structure of the lower cover of the optical guide fixing device according to an embodiment of the present invention;

[0027] Figure 9 This is a structural schematic diagram of the lower cover of the optical guide fixing device according to another embodiment of the present invention;

[0028] Figure 10 This is a schematic diagram of the structure of the fixing seat of the optical guide fixing device according to an embodiment of the present invention.

[0029] Icon labels:

[0030] 100. Mounting base; 110. Top cover; 111. Receiving cavity; 112. Mounting hole; 113. Wiring hole; 114. Slot; 115. First hook block; 1151. First hook part; 116. Limiting block; 117. Guide block; 118. Slot; 1181. First locking block; 119. First positioning block; 1110. Positioning hole; 120. Bottom cover; 121. Buckle plate; 122. First buckle groove; 123. Guide slope; 124. Second positioning block; 125. Second locking block;

[0031] 200, Fixed base; 210, Mounting groove; 220, Positioning shaft; 230, Second hook block; 231, Second hook part; 240, Second snap groove;

[0032] 300, light guide; 310, slot; 320, facet;

[0033] 400. Circuit board. Detailed Implementation

[0034] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0035] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.

[0037] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0038] Reference Figures 1 to 10 As shown, this utility model discloses a light guide fixing device according to an embodiment. This light guide fixing device can be applied to the interior trim of an automobile to realize the installation and arrangement of the light guide 300. The light guide fixing device includes a mounting base 100 and a fixing base 200, wherein the mounting base 100 is used to install the light guide 300, and the fixing base 200 is fixed to the interior trim of the automobile. The mounting base 100 and the fixing base 200 are connected to realize the installation of the light guide 300 on the automobile interior trim.

[0039] Reference Figure 1 , Figure 2 and Figure 3 As shown, specifically, the mounting base 100 has a receiving cavity 111, which can accommodate components such as the circuit board 400. The mounting base 100 has a wiring hole 113 and a mounting hole 112 communicating with the receiving cavity 111. The wiring hole 113 can be used for wiring to connect the cable to the circuit board 400. The mounting hole 112 is used to fix the light guide 300 so that the light guide 300 is opposite to the circuit board 400 to achieve light transmission.

[0040] Reference Figure 1 , Figure 2 and Figure 4 As shown, the mounting base 100 is provided with a slot 114 that communicates with the side of the mounting hole 112. The slot 114 also communicates with the receiving cavity 111 to reduce the molding difficulty of the slot 114 and the mounting hole 112. The mounting base 100 can be made of plastic material and can be manufactured by injection molding.

[0041] Reference Figure 4 , Figure 6 and Figure 7As shown, the mounting base 100 is provided with a limiting block 116 and a first hook block 115 surrounding the mounting hole 112. One end of the first hook block 115 is connected to the inner wall of the slot 114, and the other end has a first hook portion 1151. The first hook portion 1151 is at least partially located within the mounting hole 112. During installation, the installer can form a groove 310 on the outer periphery of the light guide 300, then insert the light guide 300 into the mounting hole 112, causing the groove 310 of the light guide 300 to abut against the first hook portion 1151 of the first hook block 115. The first hook block 115 can apply radial pressure to the light guide 300, causing the light guide 300 to engage and be fixed within the mounting hole 112. The first hook portion 1151's ability to abut and engage with the groove 310 improves the connection stability between the first hook block 115 and the light guide 300, making the installation of the light guide 300 more secure.

[0042] Reference Figure 3 , Figure 6 and Figure 7 As shown, the limiting block 116 is located at the bottom end of the mounting hole 112 and is at least partially located inside the mounting hole 112. The limiting block 116 is used to abut against the end of the light guide 300, thereby limiting the depth of the light guide 300 inserted into the mounting hole 112, and can indicate to the installer that the light guide 300 has been inserted to the preset depth.

[0043] Reference Figure 1 , Figure 5 and Figure 6 As shown, traditional light guides 300 are generally fixed to the vehicle body by adhesive bonding, but adhesive bonding can easily lead to the light guide 300 loosening. The light guide fixing device provided in this embodiment of the utility model achieves the installation of the light guide 300 by engaging it, which makes the installation of the light guide 300 more secure and simpler and more convenient.

[0044] Reference Figure 1 , Figure 5 and Figure 6 As shown, the light guide fixing device is suitable for extruded light guides 300. The installer can form the groove 310 by cutting the outer peripheral surface of the end of the light guide 300.

[0045] Reference Figure 1 , Figure 5 and Figure 6As shown, it is understandable that, in order to more conveniently achieve the insertion and positioning of the light guide 300 and the mounting hole 112, the installer can form a cut surface 320 at the end of the light guide 300 facing away from the groove 310. Specifically, this light guide fixing device is suitable for extruded light guides 300, and the cut surface 320 can be cut at the end of the light guide 300 facing away from the groove 310 by cutting, and the cut surface 320 penetrates the end of the light guide 300. Accordingly, the inner wall of the mounting hole 112 is provided with a guide block 117, the guide block 117 is set corresponding to the cut surface 320, the guide block 117 is set opposite to the first hook block 115, and the guide block 117 has a guide plane facing the first hook block 115.

[0046] Reference Figure 1 , Figure 5 and Figure 6 As shown, during installation, the installer can align the light guide 300 with the mounting hole 112, and make the side of the light guide 300 with the cut surface 320 on its outer periphery axially opposite to the guide plane of the mounting hole 112. An axial force is applied to the light guide 300 to insert it into the mounting hole 112, so that the light guide 300 is inserted into the mounting hole 112. The cut surface 320 can slide along the guide plane to help realize the mating and insertion of the light guide 300 and the mounting hole 112. The groove 310 of the light guide 300 can connect with the first hook portion 1151 of the first hook block 115, thereby engaging the light guide 300 and making the end of the light guide 300 abut against the limiting block 116 to ensure that the light guide 300 is inserted in place.

[0047] Reference Figure 3 , Figure 6 and Figure 7 As shown, it can be understood that two limiting blocks 116 are provided. The two limiting blocks 116 are located on both sides of the first hook block 115. The two limiting blocks 116 are centrally symmetrical along the axis of the mounting hole 112. By limiting the light guide 300 with the two limiting blocks 116, the insertion depth of the light guide 300 in the mounting hole 112 is limited, so as to ensure that the light guide 300 can be inserted to the preset depth. This can effectively avoid the problem of the insertion depth exceeding the preset depth due to the light guide 300 being deflected.

[0048] It should be understood that in some other embodiments, two or more limiting blocks 116 are provided, and the multiple limiting blocks 116 are arranged at equal intervals around the axis of the mounting hole 112. By limiting the light guide 300 with multiple limiting blocks 116, the insertion depth of the light guide 300 in the mounting hole 112 is limited, so as to ensure that the light guide 300 can be inserted to a preset depth. This can effectively avoid the problem that the insertion depth exceeds the preset depth after the light guide 300 is deflected.

[0049] Reference Figure 6 , Figure 7 and Figure 8As shown, in this embodiment, the mounting base 100 includes an upper cover 110 and a lower cover 120. The upper cover 110 has an upwardly recessed first recess, and the lower cover 120 can be connected to the lower end of the upper cover 110 to achieve a detachable connection between the upper cover 110 and the lower cover 120, which together define the accommodating cavity 111 and the wiring hole 113. The mounting hole 112, the slot 114, the limiting block 116, and the first hook block 115 are all provided on the upper cover 110. The limiting block 116 and the first hook block 115 are both part of the upper cover 110. The limiting block 116 is formed on the inner wall surface of the first recess and is located at the bottom end of the mounting hole 112.

[0050] Reference Figure 6 , Figure 7 and Figure 8 As shown, during installation, the installer can place the circuit board 400 and other components in one of the upper cover 110 and the lower cover 120. After fixing the circuit board 400 and other components, the upper cover 110 and the lower cover 120 are connected as one unit, so that the circuit board 400 is placed in the receiving cavity 111 to fix the circuit board 400 in the receiving cavity 111.

[0051] Reference Figure 7 , Figure 8 and Figure 9 As shown, it can be understood that the upper cover 110 has upward-facing slots 118 at both ends facing away from it. The slots 118 can be arranged vertically through the upper and lower parts. The inner wall of the slot 118 has a first locking block 1181. Correspondingly, the lower cover 120 has buckle plates 121 at both ends facing away from it. The buckle plates 121 have a first buckle groove 122. The buckle plates 121 can enter and exit the slots 118. The first locking block 1181 can engage or disengage with the first buckle groove 122.

[0052] Reference Figure 7 , Figure 8 and Figure 9 As shown, specifically, taking the upper cover 110 and the lower cover 120 arranged vertically as an example, the first locking block 1181 has an inclination that gradually slopes towards the inside of the receiving cavity 111 from top to bottom. Correspondingly, the upper end of the buckle plate 121 is provided with a guide slope 123 that gradually slopes away from the upper cover 110 from bottom to top, and the guide slope 123 is adapted to the inclination.

[0053] Reference Figure 7 , Figure 8 and Figure 9As shown, during installation, the installer can align the two buckle plates 121 with the two slots 118 respectively, and then apply a pressing force to the upper cover 110 and the lower cover 120 to make the first locking block 1181 gradually slide along the guide slope 123 of the buckle plate 121 towards the lower cover 120, and make the first locking block 1181 engage in the first buckle groove 122. By having the two buckle plates 121 abut against the walls of the two slots 118 respectively, the lower cover 120 and the upper cover 110 are clamped together, and the first locking block 1181 can abut against the inner wall of the first buckle groove 122, thereby preventing the first locking block 1181 from coming out of the first buckle groove 122, so as to realize the detachable connection between the upper cover 110 and the lower cover 120.

[0054] Reference Figure 7 , Figure 8 and Figure 9 As shown, it can be understood that the inner peripheral wall of the upper cover 110 is provided with a plurality of first positioning blocks 119 arranged in a plane. An installation space is constructed between the plurality of first positioning blocks 119. The installation space is used to install the circuit board 400. The size of the installation space can be designed and manufactured according to the size of the circuit board 400 to be installed, so that the circuit board 400 can be fixed in the installation space, and the plurality of first positioning blocks 119 are arranged around the circuit board 400 to assist in the positioning and fixing of the circuit board 400 in the accommodating cavity 111.

[0055] Reference Figure 7 , Figure 8 and Figure 9 As shown, the lower cover 120 is provided with a plurality of second positioning blocks 124 arranged in a plane. When the lower cover 120 is connected to the upper cover 110, the second positioning blocks 124 are located in the receiving cavity 111. The ends of the plurality of second positioning blocks 124 facing the upper cover 110 together define a mounting plane for abutting against the circuit board 400.

[0056] Reference Figure 7 , Figure 8 and Figure 9 As shown, when the upper cover 110 and the lower cover 120 approach each other and engage, the end of the second positioning block 124 facing the upper cover 110 can abut against the circuit board 400, so that the end face of the circuit board 400 facing away from the upper cover 110 is located at the mounting plane, so that the circuit board 400 is fixed in the mounting space formed by the multiple first positioning blocks 119.

[0057] Reference Figure 6 , Figure 7 and Figure 8As shown, it can be understood that the lower edge of the upper cover 110 is provided with an upwardly recessed groove, which is arranged in a ring shape. The lower cover 120 can be embedded in the groove to facilitate the detachable connection between the upper cover 110 and the lower cover 120. One side wall of the upper cover 110 is provided with a downward-facing notch. After the upper cover 110 and the lower cover 120 are connected, the lower cover 120 closes the notch of the upper cover 110, so that the lower cover 120 and the notch together define the wiring hole 113 for the cable to pass into the receiving cavity 111.

[0058] Reference Figure 6 , Figure 7 and Figure 8 As shown, specifically, the inner wall surface of the cover 110 is provided with multiple reinforcing ribs to improve the overall strength of the cover 110, improve the deformation resistance of the cover 110, and help reduce the risk of the cover 110 being damaged by pressure.

[0059] Reference Figure 6 , Figure 7 and Figure 8 As shown, it can be understood that the mounting base 200 is used to connect with the interior parts of the car, and the mounting base 200 has a mounting groove 210. After the installer installs the light guide 300 and the circuit board 400 on the mounting base 100, the mounting base 100 can be snapped into the mounting groove 210 of the mounting base 200. The mutual contact between the outer wall surface of the mounting base 100 and the inner wall surface of the mounting groove 210 helps to achieve a detachable connection between the mounting base 100 and the mounting base 200.

[0060] Reference Figure 5 , Figure 6 and Figure 10 As shown, specifically, the fixed base 200 has a positioning shaft 220 disposed in the mounting groove 210. The positioning shaft 220 has a tip that gradually narrows toward the mounting base 100. The mounting base 100 is provided with a positioning hole 1110. The positioning shaft 220 passes through the positioning hole 1110 to assist in realizing the detachable connection between the mounting base 100 and the fixed base 200.

[0061] Reference Figure 5 , Figure 6 and Figure 10 As shown, during installation, the installer can align the positioning shaft 220 with the positioning hole 1110. Since the positioning shaft 220 has a pointed tip, the installer can quickly insert the tip into the positioning hole 1110 to quickly achieve the insertion of the positioning shaft 220 and the positioning hole 1110. The mounting base 100 slides along the positioning shaft 220, which can help to achieve the engagement of the mounting base 100 and the mounting groove 210 of the fixed base 200, so as to achieve the detachable connection between the mounting base 100 and the fixed base 200.

[0062] Reference Figure 1 , Figure 5 and Figure 6As shown, it can be understood that, specifically, the fixed base 200 is provided with a second hook block 230, the second hook block 230 is arranged side by side with the positioning shaft 220, the second hook block 230 is located above the positioning shaft 220, and the end of the second hook block 230 facing the mounting base 100 is provided with a second hook portion 231, the size of the second hook portion 231 gradually decreases in the direction closer to the mounting base 100.

[0063] Reference Figure 1 , Figure 5 and Figure 6 As shown, when the mounting base 100 slides into place along the positioning shaft 220, the mounting base 100 can be embedded in the mounting groove 210, and the second hook 231 can pass over the upper edge of the mounting base 100 and engage with the outer wall surface of the mounting base 100, thereby preventing the mounting base 100 from coming out of the mounting groove 210, so as to help achieve a fixed connection between the mounting base 100 and the fixed base 200.

[0064] Reference Figure 1 , Figure 5 and Figure 6 As shown, it can be understood that the inner wall of the mounting groove 210 is provided with a second snap groove 240, and the outer wall of the mounting base 100 is provided with a second locking block 125, which can engage or disengage with the second snap groove 240.

[0065] Reference Figure 1 , Figure 5 and Figure 6 As shown, specifically, the second buckle groove 240 is located on the bottom wall of the mounting groove 210, while the second hook block 230 and the positioning shaft 220 are both located at the upper end of the mounting groove 210. Correspondingly, the positioning hole 1110 is located at the upper cover 110, and the second locking block 125 is located at the lower wall of the lower cover 120.

[0066] Reference Figure 1 , Figure 5 and Figure 6 As shown, during installation, after aligning the positioning hole 1110 of the mounting base 100 with the positioning shaft 220 of the fixing base 200, the installer can apply pressure to the mounting base 100 towards the fixing base 200, so that the mounting base 100 gradually embeds into the mounting groove 210, and the second hook portion 231 of the second hook block 230 hooks with the upper end of the mounting base 100, and the second locking block 125 is placed into the second buckling groove 240. Through the hooking of the second hook portion 231 with the outer wall of the mounting base 100 and the abutment of the second locking block 125 with the inner wall of the second buckling groove 240, the movement of the mounting base 100 and the fixing base 200 away from each other can be restricted, that is, the mounting base 100 is fixed in the mounting groove 210, so as to improve the connection stability of the mounting base 100 and the fixing base 200.

[0067] Reference Figure 1 , Figure 5 and Figure 6 As shown, specifically, the second locking block 125 has an arc that gradually curves upward from the middle to both sides. By the arc of one end of the second locking block 125 abutting against the inner wall of the mounting groove 210, the second locking block 125 can be inserted into the second latching groove 240. After applying a force away from the mounting groove 210 to the mounting base 100, the arc of the other end of the second locking block 125 can abut against the wall of the second latching groove 240 and extend beyond the second latching groove 240, thereby realizing the separation of the second latching groove 240 and the second locking block 125.

[0068] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A light guide fixing device, characterized in that, include: A mounting base (100) has a cavity (111) inside. The mounting base (100) has a wiring hole (113) and a mounting hole (112) communicating with the cavity (111). The mounting hole (112) is used to fix the light guide (300). The mounting base (100) has a slot (114) communicating with the side of the mounting hole (112). The mounting base (100) has a limiting block (116) and a first hook block arranged around the mounting hole (112). 115), the limiting block (116) is located at the bottom end of the mounting hole (112) and at least partially within the mounting hole (112) for abutting against the end of the light guide (300), one end of the first hook block (115) is connected to the inner wall of the slot (114), and the other end is provided with a first hook (1151), the first hook (1151) is at least partially within the mounting hole (112) for abutting against the side wall of the light guide (300).

2. The optical guide fixing device according to claim 1, characterized in that: The inner wall of the mounting hole (112) is provided with a guide block (117), the guide block (117) is disposed opposite to the first hook block (115), and the guide block (117) has a guide plane facing the first hook block (115).

3. The optical guide fixing device according to claim 1, characterized in that: Multiple limiting blocks (116) are provided, and the multiple limiting blocks (116) are arranged around the axis of the mounting hole (112).

4. The optical guide fixing device according to claim 1, characterized in that: The mounting base (100) includes an upper cover (110) and a lower cover (120). The mounting hole (112), the slot (114), the limiting block (116), and the first hook block (115) are all provided on the upper cover (110). The upper cover (110) and the lower cover (120) are detachably connected to define the receiving cavity (111) and the wiring hole (113).

5. The optical guide fixing device according to claim 4, characterized in that: The upper cover (110) has upward-facing slots (118) at both ends facing away from the top. The inner wall of the slot (118) is provided with a first locking block (1181). The lower cover (120) has buckle plates (121) at both ends facing away from the top. The buckle plate (121) is provided with a first buckle groove (122). The buckle plate (121) can enter and exit the slot (118). The first locking block (1181) can engage or disengage with the first buckle groove (122).

6. The optical guide fixing device according to claim 4, characterized in that: The inner peripheral wall of the upper cover (110) is provided with a plurality of first positioning blocks (119) arranged in a plane, and an installation space for mounting a circuit board is constructed between the plurality of first positioning blocks (119). And / or, the lower cover (120) is provided with a plurality of second positioning blocks (124) arranged in a plane. When the lower cover (120) is connected to the upper cover (110), the second positioning blocks (124) are located in the receiving cavity (111), and the ends of the plurality of second positioning blocks (124) facing the upper cover (110) together define a mounting plane for abutting the circuit board.

7. The optical guide fixing device according to claim 1, characterized in that: It also includes a mounting base (200) for fixing to the vehicle body. The mounting base (200) is provided with a mounting groove (210). The mounting base (100) is embedded in the mounting groove (210) and is detachably connected to the mounting base (200).

8. The optical guide fixing device according to claim 7, characterized in that: The mounting base (200) has a positioning shaft (220) disposed in the mounting groove (210), and the mounting base (100) is provided with a positioning hole (1110), and the positioning shaft (220) passes through the positioning hole (1110).

9. The optical guide fixing device according to claim 7, characterized in that: The fixing base (200) is provided with a second hook block (230), and the second hook block (230) has a second hook part (231) at one end facing the mounting base (100). The second hook part (231) can hook or separate from the outer wall surface of the mounting base (100).

10. The optical guide fixing device according to claim 7, characterized in that: The inner wall of the mounting groove (210) is provided with a second snap groove (240), and the outer wall of the mounting base (100) is provided with a second locking block (125). The second locking block (125) can engage or disengage with the second snap groove (240).

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