Vehicle headlamp angle adjusting assembly

Abstract

The invention provides a vehicle headlamp angle adjusting assembly which comprises a shell, a lamp holder and an adjusting mechanism, and a mounting cavity is formed in the shell; the lamp holder is rotationally mounted in the mounting cavity; the adjusting mechanism is installed between the lamp holder and the shell and used for adjusting the inclination angle of the lamp holder, and the adjusting mechanism comprises an adjusting bolt installed at the rear end of the shell and a deflection block connected to the adjusting bolt in a threaded mode. The deflection block is movably connected to the lamp holder and deflects relative to the lamp holder when the angle changes. The vehicle headlamp angle adjusting assembly is compact in structure, convenient to assemble, capable of achieving rapid and labor-saving adjustment of the illumination angle, free of internal stress, long in service life and good in universality.

Description

Technical Field

[0001] The invention relates to a vehicle headlight, in particular to a vehicle headlight angle adjustment component. Background Art

[0002] Headlights are key lighting equipment for motorcycles when they are driving at night or in low-light environments. They can illuminate the road ahead for the rider and ensure that the rider can clearly see the road conditions and obstacles ahead. Good lighting conditions help riders to promptly detect potential dangers on the road, such as pedestrians, other vehicles or obstacles, so that they have enough time to react and avoid collision accidents. At the same time, suitable headlights can also make it easier for other road users to spot motorcycles and reduce the risk of being overlooked. However, traditional headlights have a fixed angle and are difficult to adapt to the needs of different road conditions and riding postures, resulting in poor lighting effects.

[0003] In order to solve the above problems, there are also headlight assemblies with angle adjustment in the prior art. The headlight assemblies are adjusted by bolts. The ends of the bolts are connected to a plastic structure on the headlight assembly. The plastic is a fixed structure and cannot rotate. When the angle is adjusted, the plastic block is deformed, thereby causing the lamp to deflect. However, during the deformation process, especially the adjustment at a large angle, excessive extrusion will be caused and internal stress will be formed. Over time, plastic deformation will be formed, causing damage or failure of the adjustment mechanism. Summary of the invention

[0004] Technical issues to be solved The technical problem to be solved by the present invention is to provide a vehicle headlight angle adjustment component with compact structure, convenient adjustment, deflection space for the adjustment block, no internal stress, good stability and long service life. Technical solutions to the problem The present invention provides a vehicle headlight angle adjustment assembly, comprising: A housing, as a mounting carrier, the housing comprises a tailstock 9 with an open front end and a lampshade 1 mounted on the open end of the tailstock 9, wherein a mounting cavity is formed between the lampshade 1 and the tailstock 9; A lamp holder 7 is rotatably mounted in the mounting cavity, and its rotation axis is parallel to the width direction of the mounting cavity; The lighting assembly 6 is mounted at the front end of the lamp holder 7, and includes a light source arranged forward and a lens 64 arranged at the front end of the light source; The adjusting mechanism 8 is installed between the lamp holder 7 and the shell, and is used to adjust the inclination angle of the lamp holder 7. The adjusting mechanism 8 includes an adjusting bolt installed at the rear end of the shell 1 and a deflection block 82 threadedly connected to the adjusting bolt 84. The deflection block 82 is movably connected to the lamp holder 7 and generates relative deflection with the lamp holder 7 when the angle changes.

[0005] Furthermore, the adjusting bolt includes a bolt body 84 rotatably mounted at the rear end of the tailstock 9 , the axis of the bolt body 84 is perpendicular to the rotation axis of the lamp holder 7 , and a dial 85 for driving the adjusting bolt 84 to rotate is provided at the end thereof.

[0006] Furthermore, it includes a circular retaining frame 86, which is provided with a sleeve hole that can accommodate the adjusting bolt to pass through, and the inner wall of the sleeve hole is provided with a spring sheet that protrudes forward and has elasticity. The spring sheets are multiple and evenly distributed circumferentially, and the side wall of the adjusting bolt is provided with an annular groove that can accommodate the end of the spring sheet to be inserted, and the rear end of the retaining frame 86 contacts the rear end surface of the mounting cavity and makes the adjusting bolt tend to move forward.

[0007] Furthermore, the distance from the rotation axis of the lamp holder 7 to the adjustment mechanism 8 is 1 / 2 or more of the height of the lamp holder 7 .

[0008] Furthermore, the rear end of the lamp holder 7 is connected to the rear end of the mounting cavity via a ball hinge, and there are at least two ball hinges located on the same horizontal plane.

[0009] Furthermore, a boss 72 is provided at the rear end of the lamp holder 7, and a recessed hole with a rear end open is provided on the boss 72, and an arc-shaped supporting surface is provided in the recessed hole, and a support cover 73 is detachably installed at the open end of the recessed hole, and a through hole is provided on the support cover 73, and a plurality of elastic supporting parts 731 inclined forward are evenly distributed in the circumference of the through hole, and a spherical supporting cavity is formed between the end of the elastic supporting part 731 and the arc-shaped supporting surface; a supporting shaft is provided at the rear end of the mounting cavity, and a sphere 71 is provided at the end of the supporting shaft, and the sphere is located in the spherical supporting cavity and is hinged.

[0010] Furthermore, the rear end of the mounting cavity is provided with a mounting column arranged forward, the end face of the mounting column is provided with a screw hole, the rear end of the supporting shaft is provided with a threaded body and can be threadedly connected in the screw hole, and the side wall of the supporting shaft is provided with an annular protrusion and forms a limiting protrusion that can contact the end face of the mounting column and realize axial limiting.

[0011] Furthermore, the lamp holder 7 is made of heat-conducting metal, the front end of the lamp holder 7 has a mounting surface for mounting a lighting assembly, and the rear end of the lamp holder 7 is provided with fins for heat dissipation.

[0012] Furthermore, a notch is provided at the upper or lower end of the lamp holder 7, and strip-shaped protrusions are provided on both sides of the notch to form a plug-in portion. The deflection block 82 includes a rectangular deflection block body, and both side walls of the deflection block body are provided with strip-shaped grooves to form a slot 821. The width of the slot 821 is greater than the thickness of the plug-in portion and can be inserted into the plug-in portion. The side walls of the slot 821 are symmetrically provided with arc-shaped support portions facing the plug-in portion. The arc-shaped support portions 822 can contact the surface of the plug-in portion and serve as a fulcrum to achieve forward and backward deflection.

[0013] Furthermore, the arc-shaped supporting portion has an arc-shaped supporting surface capable of contacting the surface of the plug-in portion.

[0014] Furthermore, the arc-shaped supporting surface includes a first supporting surface 8221 and second supporting surfaces 8222 arranged at both ends of the first supporting surface 8221 , the first supporting surface 8221 is a plane parallel to the side wall of the slot 821 , and the second supporting surface 8222 is an arc-shaped surface tangent to the first supporting surface 8221 .

[0015] Furthermore, the second supporting surface 8222 is connected to the side wall of the slot 821 via an arc-shaped transition surface 8223 .

[0016] Furthermore, the ratio of the length of the first supporting surface 8221 to the thickness of the plug-in portion is greater than or equal to 1 / 5 and less than or equal to 3 / 5.

[0017] Furthermore, a central angle α formed by the second supporting surface 8222 and its center is greater than or equal to 45 degrees.

[0018] Furthermore, the deflection angle of the deflection block is 0°-15°.

[0019] Furthermore, a clamping area is formed between the two arc-shaped supporting surfaces on the same side, and the width of the clamping area is smaller than the thickness of the plug-in portion to form a clamping force and rotation damping.

[0020] Furthermore, the distance between the two arc-shaped supporting surfaces on the same side is 40%-55% of the width of the slot 821 .

[0021] Furthermore, the perpendicular midlines of the two arc-shaped support portions are coplanar with the axis of the adjusting bolt.

[0022] Furthermore, it also includes a support plate 81 made of metal, which is fixed on the lamp holder 7. The upper end or the lower end of the support plate 81 is provided with a rectangular groove to form a notch 810, and the two sides of the notch 810 form the plug-in part.

[0023] Furthermore, the top surface of the lamp holder 7 extends upward to form a vertical bracket plate, the length direction of the bracket plate is parallel to the length direction of the lamp holder, and a notch facing upward is provided on the bracket plate; the support plate 81 is fixed on the bracket plate, and the side wall of the notch can contact the side wall of the deflection block and limit its left and right deflection.

[0024] Furthermore, the depth of the notch is greater than the height of the deflection block and can achieve height adjustment.

[0025] Furthermore, the hardness of the arc-shaped supporting portion is smaller than the hardness of the plug-in portion.

[0026] Furthermore, the plug-in portion is made of metal, and the arc-shaped supporting portion is made of plastic.

[0027] Furthermore, the plug-in portion is made of stainless steel.

[0028] Furthermore, an inner sleeve 83 is fixed inside the deflection block 82 , and the hardness of the inner sleeve 83 is greater than the hardness of the deflection block 82 . Both ends of the inner sleeve 83 are penetrated by screw holes for cooperating with the adjusting bolts.

[0029] Furthermore, one or both ends of the deflection block 82 are provided with a damping hole 8201 coaxial with the screw hole, the diameter of the damping hole 8201 is smaller than the diameter of the adjusting bolt and can form damping and eliminate gaps between the adjusting bolt and the damping hole 8201. Furthermore, an elastic component is provided in the installation cavity, and the elastic component enables the lamp holder 7 to have a movement tendency to return to a vertical state.

[0030] Furthermore, the elastic component includes a first elastic component that causes the lamp holder 7 to have a tendency to rotate forward and a second elastic component that causes the lamp holder 7 to have a tendency to rotate backward, and when the lamp holder 7 is in a vertical state, the first elastic component and the second elastic component generate the same force on the lamp holder 7.

[0031] Furthermore, the deflection block and the inner sleeve are formed by secondary injection molding.

[0032] Furthermore, the arc-shaped support portion includes a fixed support portion and a dynamic support portion 86 respectively arranged on both sides of the slot, the dynamic support portion 86 is slidably fitted on the deflection block, and its sliding direction is parallel to the axis of the adjusting bolt, and the deflection block is provided with an elastic component 87 that enables the dynamic support portion 86 to have a movement tendency to approach the fixed support portion to tighten the plug-in portion.

[0033] Furthermore, the fixed support portion is arranged on the front end side wall of the slot 821, and the rear end side wall of the slot is provided with a slot body to form a guide groove 8210, the length direction of the guide groove 8210 is parallel to the axis of the adjusting bolt, the dynamic support portion 86 is slidably fitted in the guide groove, and a pressure plate 88 is fixed to the rear end face of the deflection block, and the elastic component is arranged between the pressure plate 88 and the dynamic support portion 86.

[0034] Furthermore, a strip protrusion for guiding is arranged in the guide groove along the length direction, and the side wall of the dynamic support part is provided with a strip guide groove 861 for accommodating the strip protrusion to be inserted and guiding, and the rear end of the strip guide groove 861 is sealed and can achieve axial limitation.

[0035] Furthermore, the cross section of the strip-shaped protrusion is T-shaped or trapezoidal.

[0036] Furthermore, the elastic component is a spring, and a spring hole 862 for installing the spring is opened at the rear end of the dynamic support part. The end of the spring contacts the pressure plate and makes the dynamic support part tend to move forward.

[0037] Furthermore, the elastic component is a rubber pad, and the rubber pad is arranged between the rear end surface of the dynamic support part and the pressure plate.

[0038] Furthermore, the rear end surface of the deflection block is concave inwardly to form a groove, the guide groove is connected to the groove, and the pressure block has the same shape as the groove and is fixed in the groove by bolts and buckles.

[0039] Furthermore, the distance between the slot and the end surface of the plug-in portion is less than or equal to 1 mm.

[0040] Beneficial Effects The vehicle headlight angle adjustment assembly of the present invention optimizes the design of the adjustment mechanism and adds a deflection block, which can generate deflection when the lamp holder rotates, thereby avoiding excessive extrusion deformation of the adjustment device when the lamp holder rotates, especially when adjusting at a large angle, no internal stress will be generated during adjustment to cause plastic deformation or even damage, thereby improving the adjustment reliability and service life; an arc-shaped support portion structure is adopted, which can contact the surface of the plug-in portion and then serve as a fulcrum to achieve forward and backward deflection, thereby increasing the angle adjustment range, and no internal stress will be generated, with good use effect and long service life; the arc-shaped working surface is optimized to make it more closely fit the plug-in portion, thereby reducing contact stress and improving the overall stability and wear resistance; by designing the distance between the supporting parts, damping can be formed between the deflection block and the lamp holder, improving the stability of the use and adjustment of the lamp holder, and achieving good use effect; by designing the material, the contact between plastic and metal is adopted, the friction is small, the wear is further reduced, and the durability of the component is increased; at the same time, the contact part of the plastic can be deformed extremely slightly, forming a certain damping, and the gap can be eliminated, thereby improving the flexibility and stability of the adjustment process, ensuring stability and reliability under long-term use; the damping hole is set, so that the deflection block and the thread of the adjusting bolt can achieve elastic contact and close fit, eliminating the thread gap , improve the overall stability, avoid vibration caused by relative movement, and at the same time improve the adjustment feel and comfort; the dynamic support structure can increase the adjustment angle of the lamp holder and improve the scope of application; the setting of the retaining frame can improve the stability of the adjusting bolt and prevent it from axial movement during use. It is easy to assemble, labor-saving, low-cost and effective; the distance between the rotating shaft of the lamp holder and the adjustment mechanism is optimized, which can increase the adjustment accuracy and stability of the lamp holder, avoid large deflection of the lamp holder during adjustment, and affect the adjustment accuracy and stability. At the same time, it can increase the force arm, reduce the adjustment force, and make the adjustment more convenient and labor-saving; the ball head hinge is used to realize the lamp holder The rotatable connection has a small installation space and is flexible in rotation, which greatly improves the stability of the angle adjustment of the vehicle headlights and ensures that the light can be positioned quickly and accurately in various environments; the lamp holder is made of metal, with high structural strength and connection strength, and can also dissipate heat to ensure the stable operation of the lighting component, improve the heat dissipation efficiency, prevent overheating, and extend the service life; the notch structure is adopted, which is convenient and labor-saving to assemble, and the installation space is small, which is convenient to improve the overall compactness of the structure; the vehicle headlight angle adjustment component of the present invention has a compact structure and is easy to assemble, can realize fast and labor-saving adjustment of the lighting angle, and does not generate internal stress, has a long service life, and has good versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a structural schematic diagram of a vehicle headlight angle adjustment assembly of the present invention; Figure 2 Another perspective structural diagram of the vehicle headlight angle adjustment assembly of the present invention; Figure 3 is a cross-sectional view of a vehicle headlight angle adjustment assembly of the present invention; Figure 4 It is a structural schematic diagram of a lamp holder of a vehicle headlight angle adjustment assembly of the present invention; Figure 5 It is a schematic diagram of another angle structure of the lamp holder of the vehicle headlight angle adjustment assembly of the present invention; Figure 6 It is a schematic diagram of installing a lamp holder of a vehicle headlight angle adjustment assembly of the present invention; Figure 7 for Figure 6 Enlarged view of part A in the middle; Figure 8 It is a cross-sectional view of the installation of the lamp holder of the vehicle headlight angle adjustment assembly of the present invention; Fig. 9 It is a structural schematic diagram of the adjustment mechanism of the vehicle headlight angle adjustment assembly of the present invention; Fig.10 Another perspective structural schematic diagram of the adjustment mechanism of the vehicle headlight angle adjustment assembly of the present invention; Fig.11 A cross-sectional view of the adjustment mechanism of the vehicle headlight angle adjustment assembly of the present invention; Fig.12 It is a schematic diagram of the exploded structure of the adjustment mechanism of the vehicle headlight angle adjustment assembly of the present invention; Fig.13 A cross-sectional view of a deflection block of a vehicle headlight angle adjustment assembly of the present invention; Fig.14 It is a side view of the first embodiment of the deflection block of the vehicle headlight angle adjustment assembly of the present invention; Fig.15 It is a partial enlarged view of the arc-shaped support portion of the first embodiment of the vehicle headlight angle adjustment assembly of the present invention; Fig.16 It is a structural schematic diagram of a second embodiment of a deflection block of a vehicle headlight angle adjustment assembly of the present invention; Fig.17 It is a cross-sectional view of a second embodiment of the deflection block of the vehicle headlight angle adjustment assembly of the present invention; Fig.18 It is a schematic diagram of the exploded structure of the second embodiment of the deflection block of the vehicle headlight angle adjustment assembly of the present invention; Fig.19 It is a structural schematic diagram of the dynamic support part of the second embodiment of the vehicle headlight angle adjustment assembly of the present invention; Fig. 20 It is a schematic diagram of the exploded structure of the third embodiment of the deflection block of the vehicle headlight angle adjustment assembly of the present invention.

[0042] In the figure: 1, lampshade, 6, lighting assembly, 64, lens, 7, lamp holder, 71, sphere, 72, boss, 721, arc-shaped supporting surface, 73, supporting cover, 731, elastic supporting part, 8, adjusting mechanism, 81, supporting plate, 810, notch, 82, deflection block, 8201, damping hole, 8202, first hole body, 8203, second hole body, 8204 third hole body, 821, slot, 8210, guide groove, 822, arc-shaped supporting part, 8221, first supporting surface, 8222, second supporting surface, 8223, transition surface, 83, inner sleeve, 84, bolt body, 85, dial wheel, 86, retaining frame, 88, pressure plate, 89, dynamic supporting part, 891, strip guide groove, 892, spring hole, 9, tail stock. DETAILED DESCRIPTION

[0043] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0044] See also Figure 1-Figure 20 The present invention provides a vehicle headlight angle adjustment assembly, including a shell, a lamp holder 7, a lighting assembly 6 and an adjustment mechanism 8.

[0045] The shell serves as a mounting carrier, and the shell includes a tailstock 9. The tailstock 9 is a rectangular parallelepiped structure as a whole, and its front end is open (open). A lampshade 1 is fixed to the front open end of the tailstock 9. A mounting cavity is formed between the lampshade 1 and the tailstock 9. The mounting cavity is a sealed cavity for mounting the above-mentioned lamp holder 7, lighting assembly 6 and adjustment mechanism 8. The above-mentioned tailstock 9 serves as a fixed carrier, and a plurality of screw holes are arranged on its rear end surface for connecting it to the vehicle frame. The lampshade 1 is made of a transparent material for light transmission.

[0046] The lamp holder 7 is rotatably installed in the installation cavity, and its rotation axis is parallel to the width direction of the installation cavity. In this embodiment, the rear end of the lamp holder 7 is connected to the rear end of the installation cavity by a ball hinge. There are at least two ball hinges, which are located on the same horizontal plane. Preferably, there are two ball hinges, which are symmetrically arranged on both sides of the rear end of the lamp holder 7. Specifically, two bosses 72 are provided at the rear end of the lamp holder 7, and a concave hole is provided on the boss 72. The open end of the concave hole is arranged backward, and an arc-shaped supporting surface 721 is provided in the concave hole. A support cover 73 is detachably installed on the open end of the concave hole by bolts. A through hole is provided on the support cover 73, and a plurality of elastic support parts 731 are evenly distributed in the circumferential direction in the through hole. The elastic support parts 731 are arranged to be inclined forward to form a forward conical structure, and a spherical supporting cavity is formed between the end of the elastic support part 731 and the arc-shaped supporting surface 721. ; At the same time, a supporting shaft is provided at the rear end of the mounting cavity, and the supporting shaft is a horizontally arranged shaft body. A ball 71 is provided at the end of the supporting shaft, and the ball is located in the spherical supporting cavity, thereby realizing hinge connection, that is, forming a ball head hinge, which can realize 360-degree rotation. At the same time, since there are two ball head hinges, the lamp holder 7 can be rotated upward or downward; a forwardly arranged mounting column is provided at the rear end of the mounting cavity, and a screw hole is provided on the end face of the mounting column, and a threaded body is provided at the rear end of the supporting shaft, that is, an external thread is provided on the side wall of the rear end of the supporting shaft, which can be threadedly connected in the screw hole to realize the connection between the supporting shaft and the shell, and at the same time, an annular protrusion is provided on the side wall of the supporting shaft, which can contact the end face of the mounting column, thereby realizing axial positioning of the supporting shaft, so that the connecting line of the two ball heads is parallel to the length direction of the lamp holder, ensuring the accuracy of its rotation axis and avoiding left and right deflection.

[0047] The above-mentioned lamp holder 7 is made of heat-conductive metal, and in this embodiment, it is made of aluminum. It is light in weight, has good thermal conductivity, and is conducive to heat dissipation. The front end of the lamp holder 7 has a mounting surface for mounting the lighting component, and can fully absorb the heat generated by the lighting component. The rear end of the lamp holder 7 is provided with a plurality of fins for heat dissipation, thereby ensuring the stable operation of the lighting component, improving the heat dissipation efficiency, preventing overheating, and extending the service life.

[0048] The lighting assembly 6 is installed at the front end of the lamp holder 7, which serves as a light source for emitting light. The lighting assembly includes a light source arranged forward and a lens 64 arranged at the front end of the light source. Specifically, a substrate (PCB board) is fitted and installed on the front end surface of the lamp holder 7, an LED lamp bead is arranged at the front end of the substrate, and a lens 64 is arranged at the front end of the LED lamp bead, which is used to increase the light output angle of the light source and improve the irradiation area and uniformity. In the present application, there is a certain distance between the lens and the LED lamp bead. At the same time, a conical light guide seat is arranged between the two. The large-diameter end of the light guide seat is connected to the lens 64, and the small-diameter end is close to the LED lamp bead, which effectively gathers light and improves the lighting effect. At the same time, a reflective cup is arranged in the installation cavity. The reflective cup is a conical structure with a large front end and a small rear end. A reflective layer is arranged on its inner wall for reflecting light. At the same time, the light output surface of the lens is an arc surface, and it is located in the reflective cup. At the same time, there is a certain gap between the inner wall of the small-diameter end of the reflective cup and the side wall of the lens to provide space for its up and down deflection.

[0049] The adjustment mechanism 8 is installed between the lamp holder 7 and the shell, and is used to adjust the up and down tilt angle of the lamp holder 7, thereby adjusting the illumination angle of the headlight. The adjustment mechanism 8 includes a deflection block 82 and an adjusting bolt, wherein the adjusting bolt is installed at the rear end of the shell 1, and its operating part is located outside the shell. The deflection block 82 is threadedly connected to the adjusting bolt 84. At the same time, the deflection block 82 is movably connected to the lamp holder 7. When the angle of the lamp holder 7 changes, the deflection block 82 can produce relative deflection with the lamp holder 7 to avoid internal extrusion and internal stress. In this embodiment, the deflection angle of the deflection block 82 is 0°-15°. Taking the deflection block 82 being parallel to the lamp holder 7 as a reference, its forward and backward deflection angles are both 7.5 degrees.

[0050] In this embodiment, the adjusting bolt includes a bolt body 84, which is rotatably mounted on the rear end of the tailstock 9, and the axis of the bolt body 84 is perpendicular to the rotation axis of the lamp holder 7. The bolt body includes a smooth rod portion and a threaded portion, which is rotatably mounted on the tailstock through the smooth rod portion. The outer wall of the threaded portion is provided with an external thread for threaded connection with the deflection block 82. A dial wheel 85 is provided at the end of the adjusting bolt. Part or all of the dial wheel 85 is located outside the housing and serves as the operating end of the adjusting bolt for dialing the bolt body 84 to rotate. By rotating the dial wheel 85, the adjusting bolt body 84 is rotated. 5, drives the bolt body 84 to rotate, and then pushes the deflection block 82 to move forward and backward, so as to adjust the tilt angle of the lamp holder 7. At the same time, since there is a rotation space for mutual deflection between the deflection block 82 and the lamp holder 7, when the lamp holder 7 rotates, the deflection block 82 adjusts itself (deflects) accordingly, so that the deflection block 82 and the adjusting bolt are in a coaxial state without generating internal stress. At the same time, due to the adaptive deflection of the deflection block 82, no internal stress is generated between the deflection block 82 and the lamp holder 7, thereby ensuring a smooth adjustment process and extending the service life.

[0051] It also includes a circular retaining frame 86, which has a sleeve hole formed on the retaining frame 86, which can accommodate the adjusting bolt to pass through. A plurality of spring pieces are evenly distributed on the circumference of the inner wall of the sleeve hole. The spring pieces are arranged to be inclined forward and are elastic. At the same time, an annular groove is formed on the side wall of the adjusting bolt to accommodate the end of the spring piece to be inserted. The rear end of the retaining frame 86 contacts the rear end surface of the installation cavity, thereby causing the adjusting bolt to have a tendency to move forward. The retaining frame 86 is used to maintain the stable position of the adjusting bolt to prevent it from axial movement during use. It is easy to assemble, saves effort, has low cost and good effect.

[0052] In this embodiment, the distance from the rotation axis of the lamp holder 7 to the adjustment mechanism 8 is 1 / 2 or more of the height of the lamp holder 7, which can increase the adjustment accuracy and stability of the lamp holder 7 and avoid large deflection of the lamp holder 7 during adjustment, thereby affecting the adjustment accuracy and stability. At the same time, through the above-mentioned structural setting, the force arm can be increased and the adjustment force can be reduced, making the adjustment more convenient and labor-saving. Preferably, the distance between the two is 2 / 3 of the height of the lamp holder.

[0053] The structure of the adjustment mechanism is described in detail below.

[0054] A notch (opening) is provided at the upper end or the lower end of the lamp holder 7. In this embodiment, the notch is provided at the upper end of the lamp holder 7, the upper end of which is open, and the front and rear ends are penetrated. Strip protrusions are provided on both sides of the notch, and the strip protrusions are parallel to the opening direction to form a plug-in portion. The thickness of the plug-in portion is 2mm-4mm; the deflection block 82 includes a deflection block body, which is a rectangular block structure made of plastic. Strip grooves are symmetrically provided on the left and right side walls of the deflection block body to form a slot 821. The width of the slot 821 is greater than the thickness of the plug-in portion, and can be inserted from top to bottom. On the plug-in part, in this embodiment, the width of the slot 821 is 2-4 times the thickness of the plug-in part, providing space for the deflection of the deflection block 82, and arc-shaped support parts are symmetrically arranged on the side walls of the slot 821, and the arc-shaped support parts are facing the plug-in part, that is, they are arranged opposite to each other, and are located at the center of the slot 821. The end face of the arc-shaped support part 822 is an arc-shaped surface, and as a working surface, it can contact the surface of the plug-in part, and then serve as a fulcrum to achieve forward and backward deflection; and the mid-vertical line of the arc-shaped support part 822 is coplanar with the axis of the adjusting bolt, that is, the arc-shaped support part 822 and the adjusting bolt are both located in the middle (height direction).

[0055] The above-mentioned working surface is an arc-shaped surface. When deflection occurs, the working surface can always contact with the surface of the plug-in part to achieve stable compression (clamping) thereof, ensuring that the deflection block 82 can fit tightly with the lamp holder 7 at any angle, thereby improving the stability and durability of the overall structure, extending the service life, and optimizing the user experience. The working surface is also called an arc-shaped supporting surface, which includes a first supporting surface 8221 and a second supporting surface 8222 arranged at both ends of the first supporting surface 8221. The first supporting surface 8221 is a plane parallel to the side wall of the slot 821, and the second supporting surface 8222 is an arc-shaped surface tangent to the first supporting surface 8221. At the same time, the second supporting surface 8222 is connected to the side wall of the slot 821 through an arc-shaped transition surface 8223, which can ensure the fit between the two during deflection and ensure the lamp Stability of the socket 7; the ratio of the length of the above-mentioned first supporting surface 8221 to the thickness of the plug-in part is greater than or equal to 1 / 5 and less than or equal to 3 / 5, which makes the deflection block 82 tend to reset to the initial angle. The initial angle is the state that the first supporting surface 8221 is completely in contact with the plug-in part, that is, the deflection block (slot) is parallel to the lamp holder 7 (plug-in part), and there is no inclination angle between the two. During the deflection process, the support part has a slight deformation to form resistance (damping), ensuring that the deflection block can fit tightly with the lamp holder (plug-in part) at any angle, thereby improving the running stability of the lamp holder and avoiding the generation of gaps that affect the accuracy. At the same time, it can improve the feel during adjustment and provide a good user experience. Therefore, the hardness of the arc-shaped supporting part is less than that of the plug-in part, and it can produce extremely slight deformation on the surface.

[0056] In order to facilitate installation and adjustment, reduce production costs and improve versatility, the present application also includes a support plate 81, which is made of metal, preferably stainless steel, and is a rectangular plate structure with a thickness of 2-4 mm. The support plate 81 is fixed to the lamp holder 7 by bolts, and a rectangular groove is provided at the upper end of the support plate 81 to form a notch 810, and plug-in parts are formed on both sides of the notch 810; at the same time, the top surface of the lamp holder 7 extends upward to form a vertical bracket plate, the length direction of the bracket plate is parallel to the length direction of the lamp holder, and a notch set upward is provided on the bracket plate, and the support plate 81 is fixed On the bracket plate, the width of the notch is larger than the width of the slot, so the side walls of the notch can contact the side walls of the deflection block, thereby limiting the left and right deflection of the deflection block, avoiding the left and right deflection of the deflection block due to the friction during the adjustment of the adjusting bolt, thereby affecting the adjustment accuracy and experience; in this embodiment, the distance between the slot and the inner end face of the plug-in part is less than or equal to 1mm, or the distance between the inner wall of the notch and the outer wall of the deflection block is less than or equal to 1mm, which are both used to control the left and right accuracy of the deflection block, avoid left and right movement or left and right deflection caused by excessive gaps, improve the adjustment stability, reliability and accuracy, and have high adjustment comfort.

[0057] The depth (height) of the notch in the present application is greater than the height of the deflection block, thereby enabling height adjustment of the deflection block, that is, the height of the deflection block can be adjusted according to different specifications, which has good versatility and can ensure the reliability of the connection between the deflection block and the lamp holder.

[0058] In order to further improve the stability and reliability of adjustment and extend the service life, in the present embodiment, an inner sleeve 83 is fixed in the deflection block 82. The hardness of the inner sleeve 83 is greater than that of the deflection block 82. Both ends of the inner sleeve 83 are penetrated by internal threads for adjusting the bolts to connect. That is, the deflection block is connected to the adjusting bolts through the inner sleeve, thereby improving the overall operational reliability and service life. The deflection block 82 and the inner sleeve 83 are formed by secondary injection molding, and the connection strength is high. No assembly is required, thereby reducing the manufacturing cost.

[0059] In this embodiment, the inner sleeve 83 includes a cylindrical body with screw holes passing through its two ends, and one or more annular grooves are provided on the side wall of the inner sleeve to improve the connection strength between the inner sleeve and the deflection block during injection molding to avoid axial slippage; a coaxial and interconnected damping hole 8201 and a mounting hole are provided in the deflection block, wherein the aperture of the damping hole 8201 is smaller than the diameter of the threaded section of the bolt body, and the two achieve a certain interference fit to form damping, and a plurality of strip grooves are provided in the damping hole 8201, and the length direction of the strip grooves is parallel to the axis of the damping block hole 8201; in the initial state, there is no thread in the damping hole, and the internal thread is squeezed out through the external thread of the adjusting bolt, so that the external thread of the adjusting bolt can completely fit the inner wall of the damping hole, eliminating the gap between the two and forming a certain damping at the same time; the mounting hole includes a first hole body 8202 arranged in sequence , a second hole body 8203 and a third hole body 8204, wherein the inner diameter of the second hole body 8203 is smaller than the apertures of the first hole body 8202 and the third hole body 8204, and is used to accommodate the inner sleeve 83. An internal thread is formed in the inner sleeve as the main structure of threaded connection and adjustment. Due to the influence of the manufacturing process, a certain gap will be formed between the bolt and the threaded hole. When the vehicle moves and vibrates, the lamp holder 7 may produce slight vibrations, causing the angle of the light to vibrate and change, affecting the use. By setting the damping hole 8201, the inner wall of the damping hole can fully fit the thread on the bolt body to achieve gap elimination, that is, the thread gap between the two is eliminated to avoid slight vibration and displacement between each other. On the one hand, it increases damping and improves the adjustment feel and accuracy. On the other hand, it eliminates the thread gap between the bolt and the deflection block 82 to ensure the overall accuracy.

[0060] In order to further improve the rotation stability of the lamp holder, in the present application, an elastic component is provided in the mounting cavity, and the elastic component enables the lamp holder 7 to have a tendency to reset to a vertical state, wherein the vertical state is the initial state, and the state in which the slot is parallel to the plug-in portion. Specifically, the elastic component includes a first elastic component and a second elastic component, wherein the first elastic component enables the lamp holder 7 to have a tendency to rotate forward, and the second elastic component enables the lamp holder 7 to have a tendency to rotate backward, and when the lamp holder 7 is in a vertical state, the forces exerted on the lamp holder 7 by the first elastic component and the second elastic component are the same and in opposite directions, thereby offsetting each other, and when it deflects, the elastic component can enable the lamp holder 7 to have a tendency to reset, and when there are processing or assembly errors, the above tendency can compensate for the insufficient gap between the slot and the plug-in portion, thereby improving the contact between the two and avoiding slight shaking during vehicle operation.

[0061] In the present application, the deflection block 82 may be configured in different ways. Specifically, the arc-shaped support portion may be configured in different ways, which are described below: Example 1, see Figure 14-15 In this embodiment, the arc-shaped support portion is a fixed structure, that is, it is integrally formed with the deflection block 82 and cannot be adjusted. At this time, a clamping area is formed between the two arc-shaped support surfaces on the same side, and the width of the clamping area is smaller than the thickness of the plug-in portion, thereby forming a clamping force and rotational damping. In this embodiment, the distance between the two arc-shaped support surfaces on the same side is 40%-55% of the width of the slot 821.

[0062] Example 2, see Figure 16-Figure 19 In this embodiment, the arc-shaped support portion includes a fixed support portion and a dynamic support portion 89 respectively arranged on both sides of the slot. The fixed support portion is integrally formed with the deflection block, and the dynamic support portion 89 is slidably fitted on the deflection block. The sliding direction of the dynamic support portion 89 is parallel to the axis of the adjusting bolt. At the same time, an elastic component 87 is provided on the deflection block 82. The elastic component 87 makes the dynamic support portion 89 have a movement tendency to approach the fixed support portion, and is then used to press the plug-in portion to compensate for the gap, so that the working surface of the arc-shaped support portion can always fit with the surface of the plug-in portion to ensure the connection stability. It is suitable for situations where the adjustment angle is large and can effectively avoid poor contact caused by angle changes.

[0063] In this embodiment, the fixed support portion is arranged on the front end side wall of the slot 821, and its working surface is arranged rearward. A groove body is opened on the rear end side wall of the slot to form a guide groove 8210. The length direction of the guide groove 8210 is parallel to the axis of the adjusting bolt, that is, it is arranged front to back. The dynamic support portion 89 is slidably fitted in the guide groove, and the rear end of the dynamic support portion 89 serves as a working surface for contacting the surface of the plug-in portion. A pressure plate 88 is fixed on the rear end face of the deflection block, and an elastic component is arranged between the pressure plate 88 and the dynamic support portion 89, so that the dynamic support portion 89 has a tendency to move forward, that is, it has a tendency to clamp the plug-in portion, ensuring that the two are always in full contact.

[0064] In order to improve the structural reliability and avoid the displacement and loosening of the dynamic support part 89 during operation, one or more strip protrusions are arranged along the length direction in the guide groove 8210, and the strip protrusions are used for guiding. Preferably, the cross-section of the strip protrusion is T-shaped or trapezoidal. At the same time, a strip guide groove 891 is opened on the side wall of the dynamic support part 89, which can accommodate the insertion of the strip protrusion and realize guidance. It can improve the movement stability of the dynamic support part 89, eliminate processing errors, avoid shaking caused by gaps, and facilitate assembly. At the same time, the rear end of the strip guide groove 891 is sealed, so that axial limitation can be achieved. Specifically, the front limit position of the dynamic support part 89 can be limited, which is convenient for assembly, that is, it can be assembled into a whole and then assembled with the lamp holder 7.

[0065] The rear end surface of the deflection block 82 is concave inward to form a groove, and the guide groove is connected to the groove. The pressure plate has the same shape as the groove and is fixed in the groove by bolts and buckles, which facilitates the assembly of the dynamic support part.

[0066] In this embodiment, the elastic component is a spring. At the same time, a spring hole 892 for installing the spring is opened at the rear end of the dynamic support part. The end of the spring contacts the pressure plate, thereby making the dynamic support part tend to move forward.

[0067] Example 3, see Fig. 20 In this embodiment, the difference from the second embodiment lies in the setting of the elastic component. In this embodiment, the elastic component is a rubber pad, which is arranged between the rear end surface of the dynamic support part and the pressure plate. It can provide a larger clamping force and is suitable for the case where the deflection angle is small, that is, it is suitable for the case where the running distance of the dynamic support part is small.

[0068] The vehicle headlight angle adjustment assembly of the present invention optimizes the design of the adjustment mechanism and adds a deflection block, which can generate deflection when the lamp holder rotates, thereby avoiding excessive extrusion deformation of the adjustment device when the lamp holder rotates, especially when adjusting at a large angle, no internal stress will be generated during adjustment to cause plastic deformation or even damage, thereby improving the adjustment reliability and service life; an arc-shaped support portion structure is adopted, which can contact the surface of the plug-in portion and then serve as a fulcrum to achieve forward and backward deflection, thereby increasing the angle adjustment range, and no internal stress will be generated, with good use effect and long service life; the arc-shaped working surface is optimized to make it more closely fit the plug-in portion, thereby reducing contact stress and improving the overall stability and wear resistance; by designing the distance between the supporting parts, damping can be formed between the deflection block and the lamp holder, improving the stability of the use and adjustment of the lamp holder, and achieving good use effect; by designing the material, the contact between plastic and metal is adopted, the friction is small, the wear is further reduced, and the durability of the component is increased; at the same time, the contact part of the plastic can be deformed extremely slightly, forming a certain damping, and the gap can be eliminated, thereby improving the flexibility and stability of the adjustment process, ensuring stability and reliability under long-term use; the damping hole is set, so that the deflection block and the thread of the adjusting bolt can achieve elastic contact and close fit, eliminating the thread gap , improve the overall stability, avoid vibration caused by relative movement, and at the same time improve the adjustment feel and comfort; the dynamic support structure can increase the adjustment angle of the lamp holder and improve the scope of application; the setting of the retaining frame can improve the stability of the adjusting bolt and prevent it from axial movement during use. It is easy to assemble, labor-saving, low-cost and effective; the distance between the rotating shaft of the lamp holder and the adjustment mechanism is optimized, which can increase the adjustment accuracy and stability of the lamp holder, avoid large deflection of the lamp holder during adjustment, and affect the adjustment accuracy and stability. At the same time, it can increase the force arm, reduce the adjustment force, and make the adjustment more convenient and labor-saving; the ball head hinge is used to realize the lamp holder The rotatable connection has a small installation space and is flexible in rotation, which greatly improves the stability of the angle adjustment of the vehicle headlights and ensures that the light can be positioned quickly and accurately in various environments; the lamp holder is made of metal, with high structural strength and connection strength, and can also dissipate heat to ensure the stable operation of the lighting component, improve the heat dissipation efficiency, prevent overheating, and extend the service life; the notch structure is adopted, which is convenient and labor-saving to assemble, and the installation space is small, which is convenient to improve the overall compactness of the structure; the vehicle headlight angle adjustment component of the present invention has a compact structure and is easy to assemble, can realize fast and labor-saving adjustment of the lighting angle, and does not generate internal stress, has a long service life, and has good versatility.

[0069] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A vehicle headlight angle adjustment assembly, characterized in that: include: A housing, serving as a mounting carrier, wherein the housing has a mounting cavity; A lamp holder is rotatably mounted in the mounting cavity, and its rotation axis is parallel to the width direction of the mounting cavity; An adjustment mechanism, installed between the lamp holder and the housing, for adjusting the inclination angle of the lamp holder, the adjustment mechanism comprising an adjustment bolt installed at the rear end of the housing and a deflection block threadedly connected to the adjustment bolt, the deflection block being movably connected to the lamp holder and generating relative deflection with the lamp holder when the angle changes; A notch is provided at the upper or lower end of the lamp holder, and strip-shaped protrusions are provided on both sides of the notch to form a plug-in portion. The deflection block includes a rectangular deflection block body, and strip-shaped grooves are provided on both side walls of the deflection block body to form a slot. The width of the slot is greater than the thickness of the plug-in portion and the plug-in portion can be inserted. The side walls of the slot are symmetrically provided with arc-shaped supporting portions facing the plug-in portion. The arc-shaped supporting portions can contact the surface of the plug-in portion and serve as a fulcrum to achieve forward and backward deflection.

2. The vehicle headlight angle adjustment assembly according to claim 1, characterized in that: An inner sleeve is embedded in the deflection block, and the hardness of the inner sleeve is greater than that of the deflection block. Both ends of the inner sleeve are penetrated by screw holes for cooperating with the adjusting bolt. One end or both ends of the deflection block are provided with a damping hole coaxial with the screw hole. The aperture of the damping hole is smaller than the diameter of the adjusting bolt and can form damping and eliminate gaps between the adjusting bolt and the inner sleeve.

3. The vehicle headlight angle adjustment assembly according to claim 1, characterized in that: An elastic component is provided in the mounting cavity, and the elastic component enables the lamp holder to have a tendency to return to a vertical state. The elastic component includes a first elastic component that enables the lamp holder to have a tendency to rotate forward and a second elastic component that enables the lamp holder to have a tendency to rotate backward, and when the lamp holder is in a vertical state, the first elastic component and the second elastic component generate the same force on the lamp holder.

4. The vehicle headlight angle adjustment assembly according to claim 1, characterized in that: The distance from the rotation axis of the lamp holder to the adjustment mechanism is 1 / 2 or more of the height of the lamp holder.

5. The vehicle headlight angle adjustment assembly according to claim 1, characterized in that: The arc-shaped supporting portion has an arc-shaped supporting surface capable of contacting the surface of the plug-in portion.

6. The vehicle headlight angle adjustment assembly according to claim 5, characterized in that: The arc-shaped supporting surface includes a first supporting surface and a second supporting surface arranged at both ends of the first supporting surface, the first supporting surface is a plane parallel to the side wall of the slot, the second supporting surface is an arc-shaped surface tangent to the first supporting surface, and the ratio of the length of the first supporting surface to the thickness of the plug-in portion is greater than or equal to 1 / 5 and less than or equal to 3 / 5.

7. The vehicle headlight angle adjustment assembly according to claim 1, characterized in that: A clamping area is formed between the two arc-shaped support parts located on the same side, and the width of the clamping area is smaller than the thickness of the plug-in part to form a clamping force and rotation damping.

8. The vehicle headlight angle adjustment assembly according to claim 1, characterized in that: It also includes a support plate made of metal, which is fixed on the lamp holder. The upper end or the lower end of the support plate is provided with a rectangular groove to form a notch, and the two sides of the notch form the plug-in part.

9. The vehicle headlight angle adjustment assembly according to claim 1, characterized in that: The top surface of the lamp holder extends upward to form a vertical bracket plate, the length direction of the bracket plate is parallel to the length direction of the lamp holder, and a notch facing upward is provided on the bracket plate; the support plate is fixed on the bracket plate, the notch on the support plate is coaxial with the notch, and the width of the notch is greater than the width of the notch and its side walls can contact the side walls of the deflection block and limit its left and right deflection.

10. The vehicle headlight angle adjustment assembly according to claim 1, characterized in that: The arc-shaped support portion includes a fixed support portion and a dynamic support portion respectively arranged on both sides of the slot, the dynamic support portion is slidably fitted on the deflection block, and its sliding direction is parallel to the axis of the adjusting bolt, and the deflection block is provided with an elastic component that enables the dynamic support portion to have a movement tendency to approach the fixed support portion to tighten the plug-in portion.

Images