阅读说明：本技术 一种农用车驾驶室顶棚灯 (Agricultural vehicle cab ceiling lamp ) 是由 戎俊 于 2019-12-09 设计创作，主要内容包括：本发明公开了一种农用车驾驶室顶棚灯,其包括后灯座壳体,后灯座壳体内壁两端具有第一安装螺柱与第二安装螺柱；围设于后灯座壳体内部且间隔并低于第一安装螺柱的定位环凸；设置于定位环凸内侧且低于定位环凸的多个支撑筋；通过螺丝固定于第二安装螺柱的反光内壳体,反光内壳体具有安装灯泡的中央通孔、环设于中央通孔的反射碗面、位于反射碗面两侧且向前倾斜的导光斜面、以及围设于导光斜面与反射碗面的胶合环槽,胶合环槽胶合导光罩；通过螺丝固定于第一安装螺柱的前灯座壳体,前灯座壳体裸露出导光罩。本发明通过具有反射碗面与导光斜面的反光内壳体配合灯泡出射光线,避免以往顶棚灯光线角度较小,不够均匀的麻烦。(The invention discloses a cab ceiling lamp of an agricultural vehicle, which comprises a rear lamp holder shell, wherein a first mounting stud and a second mounting stud are arranged at two ends of the inner wall of the rear lamp holder shell; the positioning ring protrusions are arranged in the rear lamp holder shell in a surrounding mode, are spaced and are lower than the first mounting stud; a plurality of support ribs arranged on the inner side of the positioning ring protrusion and lower than the positioning ring protrusion; the reflecting inner shell is fixed on the second mounting stud through screws, and is provided with a central through hole for mounting a bulb, a reflecting bowl surface annularly arranged on the central through hole, light guide inclined planes which are positioned at two sides of the reflecting bowl surface and incline forwards, and gluing ring grooves which are arranged around the light guide inclined planes and the reflecting bowl surface, wherein the gluing ring grooves are glued with the light guide cover; the front lamp holder shell is fixed on the front lamp holder shell of the first mounting stud through screws, and the light guide cover is exposed out of the front lamp holder shell. The invention avoids the trouble that the light ray angle of the prior ceiling lamp is small and not uniform enough by matching the light reflecting inner shell with the reflecting bowl surface and the light guiding inclined surface with the emergent light ray of the bulb.)

1. The utility model provides an agricultural vehicle driver's cabin ceiling lamp which characterized in that includes:

the lamp holder comprises a rear lamp holder shell, wherein two ends of the inner wall of the rear lamp holder shell are provided with first mounting studs, and second mounting studs are respectively arranged above and below the first mounting studs;

the positioning ring protrusions are arranged in the rear lamp holder shell in a surrounding mode, are spaced and are lower than the first mounting stud;

the supporting ribs are arranged on the inner side of the positioning ring protrusions and lower than the positioning ring protrusions;

the reflecting inner shell is fixed on the second mounting stud through screws, and is provided with a central through hole for mounting a bulb, a reflecting bowl surface annularly arranged on the central through hole, light guide inclined planes which are positioned on two sides of the reflecting bowl surface and incline forwards, and a gluing ring groove which is surrounded on the light guide inclined planes and the reflecting bowl surface, wherein the gluing ring groove is glued with the light guide cover;

the front lamp holder shell is fixed on the first mounting stud through screws, and the light guide cover is exposed out of the front lamp holder shell.

2. The agricultural vehicle cab ceiling lamp as claimed in claim 1, wherein the rear lamp holder housing has a threading hole at a rear end thereof, and the threading hole is provided with a threading plug cap.

3. The agricultural vehicle cab ceiling lamp of claim 1, wherein the rear lamp socket housing has a mounting bracket fastened by a bolt at a rear end thereof, the mounting bracket being fixed to a ceiling by a fastening bolt.

4. The agricultural vehicle cab dome lamp of claim 1, wherein a plurality of reinforcing ribs are provided between the positioning ring protrusions and the rear lamp holder housing.

5. The agricultural vehicle cab dome lamp of claim 1, wherein the rear side of the reflective inner shell is provided with a positioning groove in which the positioning ring is embedded, and the rear side of the reflective bowl surface is provided with a third mounting stud for mounting a bulb.

6. The agricultural vehicle cab ceiling lamp of claim 1, wherein the reflecting bowl surface and the light guiding inclined surface are provided with light reflecting edges with convex radian.

Technical Field

The application belongs to the technical field of auto-parts, specifically speaking relates to an agricultural vehicle driver's cabin ceiling lamp.

Background

An agricultural engineering vehicle, i.e. a common agricultural machine, refers to various mechanical equipment used in agricultural production. For some small agricultural machines, the ceiling of the cab is provided with a ceiling lamp so as to illuminate the cab at night and facilitate the work of a driver. The existing ceiling lamp is characterized in that a lamp shell is covered by a single bulb, light is uneven and dazzling, and the ceiling lamp with uniform light and large illumination angle is lacked.

Disclosure of Invention

In view of this, the technical problem to be solved by the present application is to provide a ceiling lamp for a driving cab of an agricultural vehicle, which avoids the trouble that the light angle of the conventional ceiling lamp is small and not uniform by matching the light ray of the bulb with the reflective inner shell having the reflective bowl surface and the light guide inclined surface.

In order to solve the technical problem, the invention discloses a cab ceiling lamp of an agricultural vehicle, which comprises a rear lamp holder shell, wherein two ends of the inner wall of the rear lamp holder shell are provided with first mounting studs, and second mounting studs are respectively arranged above and below the first mounting studs; the positioning ring protrusions are arranged in the rear lamp holder shell in a surrounding mode, are spaced and are lower than the first mounting stud; a plurality of support ribs arranged on the inner side of the positioning ring protrusion and lower than the positioning ring protrusion; the reflecting inner shell is fixed on the second mounting stud through screws, and is provided with a central through hole for mounting a bulb, a reflecting bowl surface annularly arranged on the central through hole, light guide inclined planes which are positioned at two sides of the reflecting bowl surface and incline forwards, and gluing ring grooves which are arranged around the light guide inclined planes and the reflecting bowl surface, wherein the gluing ring grooves are glued with the light guide cover; the front lamp holder shell is fixed on the front lamp holder shell of the first mounting stud through screws, and the light guide cover is exposed out of the front lamp holder shell.

According to an embodiment of the present invention, the rear end of the rear lamp holder housing is provided with a threading hole, and the threading hole is provided with a plug cap.

According to an embodiment of the present invention, the rear end of the rear socket housing has a mounting bracket fastened by a bolt, and the mounting bracket is fixed to a ceiling by a fastening bolt.

According to an embodiment of the present invention, a plurality of ribs are disposed between the positioning ring protrusion and the rear lamp base housing.

According to an embodiment of the present invention, the rear side of the reflective inner housing has a positioning groove with a positioning ring protruding thereon, and the rear side of the reflective bowl surface has a third mounting stud for mounting a bulb.

According to an embodiment of the present invention, the reflective bowl surface and the light guide inclined surface are provided with reflective ribs with convex radians.

Compared with the prior art, the application can obtain the following technical effects:

the light-reflecting inner shell with the reflecting bowl surface and the light guide inclined surface is matched with the bulb to emit light, so that the trouble that the light angle of the conventional ceiling lamp is small and not uniform enough is avoided.

Of course, it is not necessary for any one product to achieve all of the above-described technical effects simultaneously.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a perspective view of a cab dome lamp of an agricultural vehicle in accordance with an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of a separated ceiling lamp of a cab of an agricultural vehicle according to an embodiment of the present disclosure;

FIG. 3 is a rear view of a retroreflective inner shell according to an embodiment of the present application.

Reference numerals

The lamp comprises a rear lamp holder shell 10, a first mounting stud 11, a second mounting stud 12, a positioning ring protrusion 20, a support rib 30, a reflective inner shell 40, a central through hole 41, a reflective bowl surface 42, a light guide inclined surface 43, a gluing ring groove 44, a positioning groove 45, a third mounting stud 46, a light guide cover 50, a front lamp cover shell 60, a wire plug cap 70 and a mounting bracket 80.

Detailed Description

Embodiments of the present application will be described in detail with reference to the drawings and examples, so that how to implement technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.

Referring to fig. 1 to 3 together, fig. 1 is a perspective view of a cab ceiling lamp of an agricultural vehicle according to an embodiment of the present disclosure; FIG. 2 is a schematic diagram of a separated ceiling lamp of a cab of an agricultural vehicle according to an embodiment of the present disclosure; FIG. 3 is a rear view of a retroreflective inner shell according to an embodiment of the present application. As shown in the figure, the cab ceiling lamp of the agricultural vehicle comprises a rear lamp holder shell 10, wherein two ends of the inner wall of the rear lamp holder shell 10 are provided with first mounting studs 11, and second mounting studs 12 are respectively arranged above and below the first mounting studs 11; a positioning ring protrusion 20 surrounding the interior of the rear socket housing 10 and spaced apart from and lower than the first mounting stud 11; a plurality of support ribs 30 disposed inside the positioning ring protrusion 20 and lower than the positioning ring protrusion 20; a reflective inner housing 40 fixed to the second mounting stud 12 by screws, the reflective inner housing 40 having a central through hole 41 for mounting a bulb, a reflective bowl surface 42 annularly disposed to the central through hole 41, light guide slopes 43 disposed at both sides of the reflective bowl surface 42 and inclined forward, and a glue ring groove 44 surrounding the light guide slopes 43 and the reflective bowl surface 42, the glue ring groove 44 gluing the light guide cover 50; the headlight holder housing 60 is fixed to the headlight holder housing 60 of the first mounting stud 11 by screws, and the light guide cover 50 is exposed from the headlight holder housing 60.

In an embodiment of the present invention, the rear socket housing 10 is screwed to the reflector inner housing 40 through the second mounting studs 12 on the side walls, and the central through hole 41 of the reflector inner housing 40 is used to mount the lamp for illumination, so that the light is concentrated to the reflector bowl surface 42 to reflect and converge the light, thereby enhancing the illumination, and the light guide slopes 43 extending from the two ends are in relative transition to diffuse the light to the farther positions on the two sides, thereby enlarging the illumination angle and increasing the illumination range. Preferably, the reflective bowl surface 42 and the light guide inclined surface 43 are provided with reflective edges with convex radians, so that the wide-angle emergent of light rays is enhanced, and the illumination range is improved. The gluing ring groove 44 on the outer ring is used for covering and gluing the light guide cover 50, so that light rays are uniform and light intensity is soft.

In addition, the rear side of the reflective inner shell 40 is provided with a positioning groove 45 embedded with the positioning ring protrusion 20, and the positioning groove and the positioning ring protrusion are mutually embedded to strengthen positioning. And the rear side of the reflecting bowl surface 42 is provided with a third mounting stud 46 for mounting a bulb, so that a bulb base can be conveniently fixed and connection is strengthened.

The side wall of the rear lamp holder shell 10 is also provided with a first mounting stud 11 for fixing the front lamp holder shell 60 by screws, and the light guide cover 50 is exposed, so that maintenance is enhanced, internal corrosion is prevented, and durability is improved.

Preferably, the rear lamp socket shell 10 has a threading hole at the rear end thereof, and a thread plug cap 70 is installed in the threading hole, so as to facilitate the threading and connection of the bulb.

The rear end of the rear lamp holder shell 10 is provided with a mounting bracket 80 fastened through bolts, the mounting bracket 80 is fixed to a ceiling through fastening bolts, and the angle can be adjusted through the fastening bolts, so that the lamp holder is practical and convenient.

In addition, a plurality of reinforcing ribs are provided between the positioning ring protrusion 20 and the rear lamp socket housing 10, so that strength is enhanced and durability is improved.

The foregoing description shows and describes several preferred embodiments of the present application, but as aforementioned, it is to be understood that the application is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the application as described herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the application, which is to be protected by the claims appended hereto.