Angle adjustment mechanism, lighting assembly and motor vehicle

Abstract

The present invention provides an angle adjustment mechanism, which is configured to cause a mechanism to be adjusted (100) to rotate around a hinge axis, comprising an adjustment threaded rod (200) and an adjustment nut (300), the adjustment nut (300) being sleeved on the threaded rod (200), and the two being engaged by means of threads, such that rotational motion of the adjustment threaded rod (200) is converted into translational motion of the adjustment nut (300), wherein a hole-shaft fit (112, 320) is formed between the adjustment nut (300) and the mechanism to be adjusted (100) such that the translational motion of the adjustment nut (300) drives the mechanism to be adjusted (100) to rotate around the hinge axis, and wherein a clearance exists between the shaft (320) and the hole (112) such that the shaft (320) and the hole (112) can move relative to each other during the rotation of the mechanism to be adjusted (100) around the hinge axis.

Description

Angle adjustment mechanism, lighting assembly and motor vehicle

[0001] Embodiments of the present utility model relate generally to the field of lighting and / or signalling, and in particular to an angle adjustment mechanism, a lighting apparatus and a motor vehicle.

[0002] Since motor vehicles all each have different vehicle body attitude angles, when a lighting apparatus, such as a welcome lamp or a projection lamp, is mounted on a motor vehicle, it is always necessary to adjust a mounting angle of the lighting apparatus, to obtain a light pattern that is clear and / or at a suitable position.

[0003] Existing angle adjustment mechanisms comprise an adjustment threaded rod and an adjustment nut, wherein the adjustment nut and a lighting module are integrally formed by means of a two-step injection moulding process; during the adjustment process, the adjustment threaded rod and the adjustment nut mesh by means of threads, and rotational motion of the adjustment threaded rod is converted into translational motion of the adjustment nut, thereby causing the lighting module to rotate around a hinge axis. However, since the adjustment nut and the lighting module form an integral whole, rotation of the lighting module causes the adjustment nut to be displaced in a horizontal direction, thereby causing interference between the adjustment nut and the adjustment threaded rod, causing the adjustment mechanism to jam or parts to fracture.Summary of the Utility Model

[0004] One purpose of the present utility model is to solve or overcome at least one of the above and other problems and shortcomings in the prior art.

[0005] According to one aspect of the present utility model, an angle adjustment mechanism is provided, which is configured to cause a mechanism to be adjusted to rotate around a hinge axis, the angle adjustment mechanism comprising an adjustment threaded rod and an adjustment nut, the adjustment nut being sleeved on the adjustment threaded rod, and the two being engaged by means of threads, such that rotational motion of the adjustment threaded rod is converted into translational motion of the adjustment nut; a hole-shaft fit is formed between the adjustment nut and the mechanism to be adjusted, such that the translational motion of the adjustment nut drives the mechanism to be adjusted to rotate around the hinge axis, and clearance exists between the shaft and the hole, such that during the rotation of the mechanism to be adjusted around the hinge axis, the shaft and the hole can move relative to each other.

[0006] In some embodiments, the shaft is approximately tangential to the hole in one direction, and this direction is transverse to the direction of relative motion.

[0007] In some embodiments, a dimension of the hole in the direction of relative motion is related to a rotatable angle range of the mechanism to be adjusted.

[0008] In some embodiments, the adjustment nut comprises a engaging part, the engaging part being sleeved on the adjustment threaded rod, and a thread that is used for engaging with the adjustment threaded rod being formed on an inner surface of the engaging part, wherein one of the hole and the shaft is arranged on an outer peripheral face of the engaging part.

[0009] In some embodiments, a housing of the mechanism to be adjusted comprises a base for mounting the adjustment nut, the base comprising two support arms that extend opposite each other, and the other of the hole and the shaft is formed on each of the support arms.

[0010] In some embodiments, a gap is formed in the engaging part in a circumferential direction, such that the engaging part can open at a maximum adjustment position of the adjustment threaded rod.

[0011] In some embodiments, the cross section of the shaft is polygonal.

[0012] In some embodiments, the adjustment nut further comprises a positioning part, the positioning part being configured, when rotating around the shaft before the adjustment nut is sleeved on the adjustment threaded rod, to be able to interfere with the housing of the mechanism to be adjusted.

[0013] In some embodiments, the adjustment nut comprises a side plate that extends from the engaging part, the positioning part extending transversely at at least one side surface of the side plate; and the mechanism to be adjusted comprises a slot-like structure for accommodating the positioning part, two opposite side walls of the slot-like structure forming a stop part for the positioning part, to prevent the adjustment nut from over-rotating around the shaft.

[0014] In some embodiments, two said positioning parts respectively extend transversely from two opposite side surfaces of the side plate, the housing of the mechanism to be adjusted comprising two slot-like structures respectively located at two opposite sides of the side plate, and a space for accommodating the side plate being formed between the two slot-like structures.

[0015] In some embodiments, the size of the slot-like structure is greater than the size of the positioning part, and is related to a magnitude of translational motion of the adjustment nut.

[0016] According to another aspect of the present utility model, a lighting assembly is further provided, comprising:

[0017] a mechanism to be adjusted that is configured as a light-emitting module; and

[0018] the angle adjustment mechanism of any one of the embodiments above.

[0019] According to another aspect of the present utility model, an embodiment further provides a motor vehicle, which comprises the above-mentioned lighting assembly, and a vehicle body, the mechanism to be adjusted being hinged to the vehicle body, and the vehicle body comprising a transparent window for transmitting light from the mechanism to be adjusted, and a mounting base for mounting the adjustment threaded rod of the angle adjustment mechanism.

[0020] Other purposes and advantages of the present utility model will become obvious through the below description of the present utility model by referring to the drawings, which also helps to obtain a comprehensive understanding of the present utility model.DESCRIPTION OF THE DRAWINGS

[0021] These and / or other aspects, features and advantages of the present utility model will become obvious and easy to understand through the following description of illustrative embodiments in conjunction with the drawings, wherein:

[0022] shows a perspective drawing of a lighting assembly 2 mounted on a partial vehicle body 1 of a motor vehicle according to the present utility model;

[0023] shows a perspective drawing of a lighting assembly 2 according to the present utility model;

[0024] shows schematically a perspective drawing of an adjustment nut 300 according to an embodiment of the present utility model; and

[0025] shows schematically a perspective drawing of a mechanism 100 to be adjusted that is configured as a light-emitting module according to an embodiment of the present utility model.Detailed Description of Embodiments

[0026] Embodiments of the present utility model are described in detail below in conjunction with the drawings. Herein, identical or similar components are indicated by identical or similar reference numerals. The following description of the embodiments of the present utility model with reference to the drawings is intended to explain the general concept of the present utility model, and should not be seen as a limitation of the present utility model.

[0027] Furthermore, in the detailed description below, to facilitate explanation, many specific details are expounded in order to provide a comprehensive understanding of embodiments of the present utility model. However, it is obvious that one or more embodiments may also be implemented without these specific details. In other scenarios, well-known structures and devices are shown in the form of illustrations to simplify the drawings.

[0028] An embodiment of the present utility model relates to an angle adjustment mechanism, comprising an adjustment nut and an adjustment threaded rod; the angle adjustment mechanism can be used for causing a mechanism to be adjusted to rotate around a hinge axis, and can adjust an angle of rotation. In the description of an embodiment below, the mechanism to be adjusted being a light-emitting module is taken as an example, and the light-emitting module is, for example and not limited to, a welcome lamp, projection lamp, etc. It should be explained that the example of the mechanism to be adjusted is not limited to this, and may be an apparatus of any type, as long as it forms a fit with the adjustment nut as described in the present utility model.

[0029] shows a perspective drawing of a lighting assembly 2 mounted on a partial vehicle body 1 of a motor vehicle according to the present utility model;shows a perspective drawing of the lighting assembly 2 according to the present utility model. As shown in the figures, the lighting assembly 2 comprises a mechanism 100 to be adjusted that is configured as a light-emitting module, and an angle adjustment mechanism, wherein the angle adjustment mechanism comprises an adjustment threaded rod 200 and an adjustment nut 300; the fit between various components of the lighting assembly 2 is presented in detail below. A motor vehicle comprises a partial vehicle body 1; as shown in the figures, the mechanism 100 to be adjusted is hinged to the vehicle body 1 at position A, so as to be able to rotate around a hinge axis (in the direction perpendicularly to the page of, not shown); the mechanism 100 to be adjusted that is configured as a light-emitting module can emit light, and the vehicle body 1 hence comprises a transparent window for transmitting the light (not shown). In addition, the vehicle body 1 further comprises a mounting base 11 for mounting the adjustment threaded rod; a washer and / or sealing ring, etc. for the adjustment threaded rod may further be provided in the mounting base.

[0030] It should be explained that, in an embodiment of the present utility model, the adjustment threaded rod is manifest as a rod-shaped object with a thread, and therefore also encompasses an adjustment screw.

[0031] schematically shows a perspective drawing of an adjustment nut 300 according to an embodiment of the present utility model.schematically shows a perspective drawing of a mechanism 100 to be adjusted that is configured as a light-emitting module according to an embodiment of the present utility model. As shown in the figures, the adjustment nut 300 comprises a engaging part 310, which is in the shape of a hollow cylinder and is sleeved on the adjustment threaded rod 200, and an inner surface of the engaging part 310 and an outer surface of the adjustment threaded rod 200 are both threaded, such that the two can mesh via threads, and thus rotational motion of the adjustment threaded rod 200 can be converted into translational motion of the adjustment nut 300, that is, in, motion in the vertical direction of the page.

[0032] A hole-shaft fit is formed between the adjustment nut 300 and the mechanism 100 to be adjusted, and translational motion of the adjustment nut 300 can drive the mechanism 100 to be adjusted to rotate around the hinge axis. Specifically, the adjustment nut 300 comprises a pair of shafts 320, which are arranged on an outer peripheral face of the engaging part 310; the mechanism 100 to be adjusted comprises a base 110 that is used for mounting the adjustment nut 300, comprising two support arms 111 extending opposite to each other, wherein a hole 112 is formed on each support arm 111, and the pair of shafts 320 may be respectively accommodated in the pair of holes 112, thus forming a hole-shaft fit. When the adjustment threaded rod 200 rotates, the adjustment nut 300 performs translational motion in the vertical direction of the page of, such that the shaft 320 mutually interferes with the hole 112, thereby driving the mechanism 100 to be adjusted to rotate vertically around the hinge axis at position A.

[0033] Furthermore, if no clearance is provided between the shaft 320 and the hole 112, for example, the hole 112 being a columnar hole that tightly surrounds the columnar shaft 320, then when the mechanism 100 to be adjusted rotates around the hinge axis, the mechanism 100 to be adjusted drives the shaft 320 and the adjustment nut 300 to be horizontally displaced via the hole 112, and the adjustment nut 300 and the adjustment threaded rod 200 interfere with each other in the horizontal direction (a transverse extension direction of the threads), causing the adjustment mechanism to jam or fracture. Therefore, in an embodiment of the present utility model, clearance exists between the shaft 320 and the hole 112, that is, the size of the hole 112 is greater than the size of the shaft 320, such that the two can move relative to each other. For example, the shaft 320 can be configured as a columnar shaft, and the hole 112 can be configured as an elongated hole of a greater size, hence during rotation of the mechanism 100 to be adjusted around the hinge axis, the shaft 320 and the hole 112 can move relative to each other; thus, the mechanism 100 to be adjusted does not drive the shaft 320 and the adjustment nut 300 to be displaced horizontally via the hole 112, and also does not cause the adjustment nut 300 and the adjustment threaded rod 200 to interfere with each other in the horizontal direction. As an example, relative motion between the shaft 320 and the hole 112 is generally along a long side of the elongated hole 112 in.

[0034] It should be explained that although the above embodiment describes the adjustment nut 300 being provided with the shaft 320, and the mechanism 100 to be adjusted being provided with the hole 112, it may also conversely be the case that the mechanism to be adjusted is provided with the shaft and the adjustment nut 300 is provided with the hole, as long as a hole-shaft fit is formed between the two.

[0035] Preferably, the shaft 320 is approximately tangential to the hole 112 in one direction, and this direction is transverse to the direction of relative motion; in the example in, the two are tangential to each other in the direction of a short side of the elongated hole 112. Thus, when the adjustment nut 300 performs translational motion, the mechanism 100 to be adjusted can be immediately driven to rotate around the hinge axis.

[0036] Preferably, a dimension of the hole 112 in the direction of relative motion is related to a rotatable angle range of the mechanism to be adjusted, that is, as in the example in, the dimension of the long side of the hole 112 can be determined according to the angular stroke of the mechanism to be adjusted, such that in the whole angular stroke of the mechanism to be adjusted, the hole 112 and the shaft 320 can move relative to each other without any interference.

[0037] Preferably, as shown in, a gap 330 is formed in the engaging part 310 in a circumferential direction, such that the engaging part 310 can open at a maximum adjustment position of the adjustment threaded rod 200, thereby preventing parts from jamming or fracturing.

[0038] Furthermore, when the adjustment nut 300 is only fitted to the mechanism 100 to be adjusted and not to the adjustment threaded rod 200, since a hole-shaft fit is formed between the adjustment nut 300 and the mechanism 100 to be adjusted, the adjustment nut 300 easily rotates around the shaft 320, with the result that, before being fitted to the adjustment threaded rod 200, it is necessary to again adjust the adjustment nut 300 to a suitable position. To solve this problem, in an example, the shaft 320 is made to have a polygonal cross section, rather than a cylindrical cross section; therefore, rotation of the adjustment nut 300 around the shaft 320 experiences a certain resistance, so that the adjustment nut 300 can be prevented from over-rotating around the shaft 320.

[0039] In another example, the adjustment nut 300 further comprises a positioning part, the positioning part being configured, when rotating around the shaft 320 before the adjustment nut 300 is sleeved on the adjustment threaded rod 200, to be able to interfere with the housing of the mechanism 100 to be adjusted, to prevent over-rotation of the adjustment nut 300. Specifically, as a non-limiting embodiment, as shown in Figs. 3 and 4, the adjustment nut 300 further comprises a side plate 340 extending from the engaging part 310, two positioning parts 350 at two side surfaces (left and right) of the side plate 340, respectively, extending transversely to the side surfaces in the form of protrusions (for example, but not limited to, columnar objects). Correspondingly, two slot-like structures 114 are formed on a bottom face 113 of the base 110 that connects the two support arms 111, each slot-like structure 114 being used for accommodating one positioning part 350, and two opposite side walls 115, which belong to the slot-like structure 114 and are located in a direction of rotation of the adjustment nut 300 around the shaft, forming a stop part; when the adjustment nut 300 rotates upward or downward around the shaft 320, each positioning part 350 can interfere with an upper or lower side wall 115 of each slot-like structure 114, thereby preventing the adjustment nut 300 from over-rotating.

[0040] The size of an accommodation space formed by the slot-like structure 114 is necessarily greater than the size of the positioning part 350, and specifically is related to a magnitude of translational motion of the adjustment nut 300, to avoid interference with the adjustment nut 300 during translational motion of the adjustment nut 300.

[0041] As shown in, the two slot-like structures 114 are also located on two opposite sides of the side plate 340 of the adjustment nut 300; in other words, a gap is formed between the two slot-like structures 114 to accommodate the side plate 340, which is likewise to avoid interference with the side plate 340 of the adjustment nut 300 during translational motion of the adjustment nut 300.

[0042] In an embodiment of the present utility model, by means of a hole-shaft fit being formed between the adjustment nut and the mechanism to be adjusted, and clearance existing between the hole and the shaft, the adjustment nut interfering with the adjustment threaded rod, and consequent jamming of the adjustment mechanism or fracturing of parts, can be avoided during rotation of the mechanism to be adjusted around the hinge axis.

[0043] An embodiment of the present utility model further provides a motor vehicle comprising the lighting assembly as described in any of the above embodiments.

[0044] Although the present utility model has been explained by referring to the drawings, the embodiments disclosed in the drawings are intended to provide an exemplary explanation of preferred embodiments of the present utility model, and may not be interpreted as a limitation to the present utility model. The dimensional proportions in the drawings are merely schematic, and may not be interpreted as a limitation to the present utility model.

[0045] Although some embodiments showing the general concept of the present utility model have been illustrated and described, those ordinarily skilled in the art will understand that changes can be made to these embodiments without departing from the principle and spirit of the general concept disclosed herein. The scope of the present utility model is defined by the claims and their equivalents.

Claims

An angle adjustment mechanism, which is configured to cause a mechanism to be adjusted (100) to rotate around a hinge axis, characterized in that, comprising an adjustment threaded rod (200) and an adjustment nut (300), the adjustment nut (300) being sleeved on the adjustment threaded rod (200), and the two being engaged by means of threads, such that rotational motion of the adjustment threaded rod (200) is converted into translational motion of the adjustment nut (300);a hole-shaft fit is formed between the adjustment nut (300) and the mechanism to be adjusted(100) , such that the translational motion of the adjustment nut (300) drives the mechanism to be adjusted (100) to rotate around the hinge axis, and a clearance exists between the shaft (320) and the hole (112), such that during the rotation of the mechanism to be adjusted (100) around the hinge axis, the shaft (320) and the hole (112) are able to move relative to each other.The angle adjustment mechanism according to Claim 1, characterized in that the shaft (320) is approximately tangential to the hole (112) in one direction, and this direction is transverse to the direction of relative movement.The angle adjustment mechanism according to Claim 1, characterized in that a dimension of the hole (112) in the direction of relative movement is related to a rotatable angle range of the mechanism to be adjusted (100).The angle adjustment mechanism according to any one of Claims 1 to 3, characterized in that the adjustment nut (300) comprises an engaging part (310), the engaging part (310) being sleeved on the adjustment threaded rod (200), and a thread for engaging with the adjustment threaded rod (200) being formed on an inner surface of the engaging part (310), wherein one of the hole (112) and the shaft (320) is arranged on an outer peripheral face of the engaging part (310).The angle adjustment mechanism according to Claim 4, characterized in that a housing of the mechanism to be adjusted (100) comprises a base (110) for mounting the adjustment nut (300), the base (110) comprising two support arms (111) that extend opposite each other, and the other of the hole (112) and the shaft (320) is formed on each of the support arms (111).The angle adjustment mechanism according to Claim 4, characterized in that a gap (330) is formed in the engaging part (310) in a circumferential direction, such that the engaging part (310) can open at a maximum adjustment position of the adjustment threaded rod (200).The angle adjustment mechanism according to Claim 5 or 6, characterized in that a cross section of the shaft (320) is polygonal.The angle adjustment mechanism according to Claim 5 or 6, characterized in that the adjustment nut (300) further comprises a positioning part (350), the positioning part (350) being configured to be able to interfere with the housing of the mechanism to be adjusted (100), when the adjustment nut (300) rotating around the shaft (320) before the adjustment nut (300) is sleeved on the adjustment threaded rod (200).The angle adjustment mechanism according to Claim 8, characterized in that the adjustment nut (300) comprises a side plate (340) that extends from the engaging part (310), the positioning part (350) extending transversely on at least one side surface of the side plate (340); and the mechanism to be adjusted (100) comprises a slot-like structure (114) for accommodating the positioning part (350), two opposite side walls (115) of the slot-like structure (114) forming a stop part for the positioning part (350), to prevent the adjustment nut (300) from over-rotating around the shaft (320).The angle adjustment mechanism according to Claim 9, characterized in that two positioning parts (350) respectively extend transversely from two opposite side surfaces of the side plate (340), the housing of the mechanism to be adjusted (100) comprising two slot-like structures (114) respectively located at two opposite sides of the side plate (340), and a space for accommodating the side plate (340) being formed between the two slot-like structures (114).The angle adjustment mechanism according to Claim 9, characterized in that the size of the slot-like structure (114) is greater than the size of the positioning part (350), and is related to a magnitude of translational motion of the adjustment nut (300).Lighting assembly, characterized by comprising:a mechanism to be adjusted (100) that is configured as a light-emitting module; andthe angle adjustment mechanism according to any one of Claims 1 to 11.Motor vehicle, characterized by comprising:the lighting assembly according to Claim 12; anda vehicle body (1), the mechanism to be adjusted (100) being hinged to the vehicle body (1), the vehicle body (1) comprising a transparent window for transmitting light from the mechanism to be adjusted (100), and a mounting base (11) for mounting the adjustment threaded rod (200) of the angle adjustment mechanism.

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