CN207599601U

CN207599601U - Car light leads the fixed structure of anti-axial float under restricted clearance

Info

Publication number: CN207599601U
Application number: CN201721828440.1U
Authority: CN
Inventors: 姚纪荣; 何中英; 焦彬
Original assignee: Guangxi Tong Ming Car Lamp Co Ltd
Current assignee: Guangxi Tong Ming Car Lamp Co Ltd
Priority date: 2017-12-22
Filing date: 2017-12-22
Publication date: 2018-07-10
Anticipated expiration: 2027-12-22

Abstract

The utility model discloses the fixed structures that car light under a kind of restricted clearance leads anti-axial float, including having carried out circumferentially fixed light guide, attachment, buckle, the endpiece of light guide is equipped with convex block on the peripheral surface, endpiece passes through attachment from the face side of attachment, convex block is located at back side, is buckled in back side and is sheathed on endpiece；In the axial direction, buckle offers deep gouge one, deep gouge two successively from towards the side of back side, and deep gouge one, deep gouge two are communicated with the inner peripheral wall being buckled, the diameter D of deep gouge two₂Not less than the diameter D of deep gouge one₁；In the circumferential, the length L of deep gouge two₂More than the length L of deep gouge one₁, convex block from deep gouge one enter deep gouge two；After buckle rotation, in the axial direction, lateral wall C, D fitting clamping opposite with convex block deep gouge two opposite madial wall A, B；Buckle is fixed with attachment.The real space limited situation that the utility model is installed according to light guide in car light to light guide design axial fixing structure, prevents light guide from axial float occurs.

Description

Car light leads the fixed structure of anti-axial float under restricted clearance

Technical field

The utility model is related to car light, more particularly to the fixation of light guide in car light.

Background technology

Light guide is also light pipe, light-guiding pillar, is that the light that LED is sent out is oriented to front panel or luminous position from PCB Structural member, this structural member are generally made of PC PMMA materials, have guide-lighting performance well.

The fixation that car light interior focusing is led should prevent from circumferentially rotating, and prevent axial float again, and LED is needed with light guide edge surface Certain minim gap is kept, if axial float occurs for light guide, can collide with LED and LED is caused to damage, therefore light guide Fixation has a major impact the quality of automobile lamp.

And space is often limited in car light, either the installation space of light guide or assembling operating space, to light guide Certain obstacle can all be brought by being reliably fixed.

Utility model content

Purpose of utility model：In view of the above-mentioned problems, the purpose of this utility model is to provide one kind under restricted clearance to vehicle Light leads the structure for carrying out axial restraint, prevents light guide from axial float occurs, light guide is reliably fixed.

Technical solution：Car light leads the fixed structure of anti-axial float under a kind of restricted clearance, circumferential solid including having carried out Fixed light guide, the attachment for axial restraint, buckle, the back side of the attachment is limited space side, the light guide Front end is equipped with convex block on the peripheral surface towards LED, the endpiece of the light guide, and the face side of the endpiece from the attachment is worn Cross the attachment, the convex block is located at the back side, described to be buckled in the back side and be sheathed on the endpiece；

In the axial direction, the buckle offers deep gouge one, deep gouge two successively from towards the side of the back side, described heavy Slot one, deep gouge two are communicated with the inner peripheral wall of the buckle, the diameter D of the deep gouge two₂Not less than the diameter of the deep gouge one D₁；In the circumferential, the length L of the deep gouge two₂More than the length L of the deep gouge one₁, the convex block enters from the deep gouge one The deep gouge two；After the buckle rotation, in the axial direction, the deep gouge two opposite madial wall A, B is opposite with the convex block Lateral wall C, D are bonded clamping；The buckle is fixed with the attachment.

Further, the convex block be rectangular block, circumferential surface be rectangle, the deep gouge two be rectangular channel, circumferential surface For rectangle；In the axial direction, the groove depth of the deep gouge two is equal with the height of the convex block.

Further, in order to easy to assembly, the convex block is trapezoid block, and circumferential surface is trapezoidal, and the deep gouge two is ladder Shape slot, circumferential surface are trapezoidal, and the trapezoidal gradient of the two is equal；In the axial direction, the upper kerve of the deep gouge two it is deep with it is described convex The upper bottom height of block is equal, and the bottom groove depth of the deep gouge two is more than the bottom height of the convex block；In the circumferential, the convex block Upper bottom surface towards the terminal end face of the deep gouge two.

Further, in the circumferential, the starting end face of the deep gouge two is opposite with the deep gouge one, may correspond to deep gouge one The circumferential limit of internal or deep gouge one, enables convex block to enter deep gouge two from deep gouge one.

Further, the convex block in the peripheral surface of the endpiece at least provided with one, can be balanced during more than one Stress further improves the reliability of axial restraint.

Further, the periphery wall surface of the buckle is equipped with fixed-wing, and the fixed-wing passes through spiral shell with the attachment Nail is fixed.

Advantageous effect：Compared with prior art, the utility model has the advantages that：The practical sky installed according to light guide in car light Between limited situation, respective design can be reliably fixed the axial direction of light guide, avoid it in axis to the fixed structure of light guide It is subjected to displacement upwards, has the function that prevent light guide from axial float occurs；The fixed structure occupied space is few, behaviour convenient for assembly Make, assembly difficulty is low.

Description of the drawings

Fig. 1 is the utility model explosive view；

Fig. 2 is structural front view of the buckle from the side towards attachment back side；

Fig. 3 is the right view of Fig. 2, and convex block is shown in is fixed by deep gouge two；

Fig. 4 is the partial enlarged view I of Fig. 3；

Fig. 5 is the utility model assembling process schematic diagram, and hollow arrow represents assemble flow in figure, and filled arrows represent dress With the direction of rotation that is buckled in the process；

Fig. 6 is the utility model structural front view obtained after Fig. 5 is assembled；

Fig. 7 is the left view of Fig. 1.

Specific embodiment

In the following with reference to the drawings and specific embodiments, the utility model is furtherd elucidate.

Car light leads the fixed structure of anti-axial float under a kind of restricted clearance, including carried out circumferentially fixed light guide 1, Attachment 2, buckle 3, attachment 2 are to be used for according to the structure choice in car light to the progress axial restraint of light guide 1 and for light guide 1 The component of attachment, light guide 1 need to wear fixation, but 21 limited space of back side of attachment 2 with attachment 2, and light guide 1 can not be from Back side 21 is arranged in attachment 2, can only be worn from the face side 22 of attachment 2, and in face side 22 due to the front end of light guide 1 Towards LED, therefore axial restraint preferably is carried out to light guide 1 from back side 21.

For this purpose, being equipped with convex block 12 in the peripheral surface of the endpiece 11 of light guide 1, larger lead to is offered on attachment 2 Hole 23, endpiece 11 pass through through-hole 23 from face side 22, and convex block 12 is located at back side 21, and overleaf side 21 is sheathed on endpiece to buckle 3 On 11.

In the axial direction, buckle 3 offers deep gouge 1, deep gouge 2 33, deep gouge successively towards the side 31 of back side 21 certainly One 32, deep gouge 2 33 is communicated with the inner peripheral wall 34 of buckle 3, the diameter D of deep gouge 2 33₂Not less than the diameter D of deep gouge 1₁. In circumferential direction, the length L of deep gouge 2 33₂More than the length L of deep gouge 1₁, starting end face 333 and one 32 phase of deep gouge of deep gouge 2 33 It is right, one 32 inside of deep gouge or the circumferential limit of deep gouge 1 are may correspond to, convex block 12 is enable to enter deep gouge 2 33 from deep gouge 1.

In order to easy to assembly, convex block 12 can be trapezoid block, and circumferential surface is trapezoidal, and corresponding, deep gouge 2 33 is trapezoidal Slot, circumferential surface are trapezoidal, and the trapezoidal gradient of the two is equal；And in the axial direction, the upper kerve depth E of deep gouge 2 33₁With convex block 12 upper bottom height H₁It is equal, the bottom groove depth E of deep gouge 2 33₂More than the bottom height H of convex block 12₂.At this point, buckle and endpiece Assembling should make the upper bottom surface 123 of convex block 12 towards the terminal end face 334 of deep gouge 2 33, the i.e. upper kerve of groove depth of terminal end face 334 Deep E₁, the groove depth i.e. bottom groove depth E of starting end face 333₂.After convex block 12 enters deep gouge 2 33, rotary buckle 3, until terminal end face 334 support conjunction with upper bottom surface 123, and in the axial direction, the opposite madial wall A331 of deep gouge 2 33, madial wall B332 are opposite with convex block 12 Lateral wall C121, lateral wall D122 are bonded clamping, i.e. convex block can be fixed by deep gouge two, it is impossible to axial displacement occur, so as to make Axial float will not occur for light guide.

Convex block 12 can be rectangular block, and circumferential surface is rectangle, corresponding, and deep gouge 2 33 is rectangular channel, and circumferential surface is Rectangle, and in the axial direction, the groove depth of deep gouge 2 33 is equal with the height of convex block 12, i.e. E₁、H₁、E₂、H₂It is all equal.Convex block 12 Into after deep gouge 2 33, rotary buckle 3, in the axial direction, convex block 12 is in the opposite madial wall A331 of deep gouge 2 33, madial wall B332 Between any position, lateral wall C121 madial wall A331, madial wall B332 opposite with convex block 12, lateral wall D122 can be bonded Clamping, i.e. convex block can be fixed by deep gouge two, it is impossible to axial displacement occur, so as to make light guide that axial float will not occur.

The groove depth of deep gouge 1 is unrestricted, considers that groove depth should be as small as possible, then is buckled in back side and accounts for from space is saved Space can be reduced.

After buckle 3 is assembled with light guide 1, buckle 3 is fixed with attachment 2.Between can be on the periphery wall surface 35 of buckle 3 Every setting fixed-wing 36, fixed-wing 36 is fixed with attachment 2 by screw 4.

Setting quantity of the convex block 12 in the peripheral surface of buckle 3 is at least one, during more than one, can producing balanced forces, Further improve the reliability of axial restraint.

Claims

1. car light leads the fixed structure of anti-axial float under a kind of restricted clearance, it is characterised in that：It is circumferential solid including having carried out Fixed light guide (1), the attachment (2) for axial restraint, buckle (3), the back side (21) of the attachment (2) for space by Side is limited, towards LED, the endpiece (11) of the light guide (1) is equipped with convex block (12) on the peripheral surface for the front end of the light guide (1), The endpiece (11) is from the face side (22) of the attachment (2) across the attachment (2), and the convex block (12) is positioned at described Back side (21), the buckle (3) are sheathed in the back side (21) on the endpiece (11)；

In the axial direction, the buckle (3) offers deep gouge one (32) from the side (31) towards the back side (21), sinks successively Slot two (33), the deep gouge one (32), deep gouge two (33) are communicated with the inner peripheral wall (34) of the buckle (3), the deep gouge two (33) diameter D₂Not less than the diameter D of the deep gouge one (32)₁；In the circumferential, the length L of the deep gouge two (33)₂More than institute State the length L of deep gouge one (32)₁, the convex block (12) from the deep gouge one (32) enter the deep gouge two (33)；The buckle (3) after rotating, in the axial direction, the deep gouge two (33) opposite madial wall A, B (331,332) are opposite with the convex block (12) Lateral wall C, D (121,122) are bonded clamping；The buckle (3) and the attachment (2) are fixed.

2. car light leads the fixed structure of anti-axial float under restricted clearance according to claim 1, it is characterised in that：Institute Convex block (12) is stated as rectangular block, circumferential surface is rectangle, and the deep gouge two (33) is rectangular channel, and circumferential surface is rectangle；In axis Upwards, the groove depth of the deep gouge two (33) is equal with the height of the convex block (12).

3. car light leads the fixed structure of anti-axial float under restricted clearance according to claim 1, it is characterised in that：Institute Convex block (12) is stated as trapezoid block, circumferential surface is trapezoidal, and the deep gouge two (33) is dovetail groove, and circumferential surface is trapezoidal, the two The trapezoidal gradient it is equal；In the axial direction, the upper kerve of the deep gouge two (33) is deep equal with the upper bottom height of the convex block (12), The bottom groove depth of the deep gouge two (33) is more than the bottom height of the convex block (12)；In the circumferential, the convex block (12) is upper Bottom surface (123) is towards the terminal end face (334) of the deep gouge two (33).

4. the fixed structure of anti-axial float, feature are led according to car light under any restricted clearances of claim 1-3 It is：In the circumferential, the starting end face (333) of the deep gouge two (33) is opposite with the deep gouge one (32).

5. car light leads the fixed structure of anti-axial float under restricted clearance according to claim 4, it is characterised in that：Institute Convex block (12) is stated in the peripheral surface of the endpiece (11) at least provided with one.

6. car light leads the fixed structure of anti-axial float under restricted clearance according to claim 4, it is characterised in that：Institute The periphery wall surface (35) for stating buckle (3) is equipped with fixed-wing (36), and the fixed-wing (36) passes through screw with the attachment (2) (4) it is fixed.