Direction-adjustable projection device for mounting on chassis of vehicle

Abstract

The utility model discloses a direction-adjustable projection device mounted on a vehicle chassis. The direction-adjustable projection device comprises a bracket assembly and a projection lamp assembly, the support assembly is provided with a base used for being fixed to a vehicle chassis, a fixed support fixed to the base and a movable support rotationally connected to the fixed support. And the projection lamp assembly is connected to the movable bracket. A first annular fluted disc and a second annular fluted disc are matched at the rotating joint of the fixed bracket and the movable bracket and are connected through an adjusting element; when the adjusting element is locked to enable the second annular fluted disc and the first annular fluted disc to be meshed with each other, the movable support cannot rotate relative to the fixed support. When the adjusting element is unscrewed to enable the second annular fluted disc and the first annular fluted disc not to be meshed with each other, the movable support can rotate relative to the fixed support, so that the projection lamp assembly can rotate along with the rotation of the movable support, and the direction and the angle of a projected image are adjusted.

Description

Technical Field

[0001] This work relates to the field of vehicle accessories, particularly to adjustable projection devices for mounting on vehicle chassis. Background Technology

[0002] To enhance the visual ambiance of vehicles and create a sense of luxury, prestige, or sophistication, some commercially available vehicles are equipped with projection lights. When activated, these lights project images or text onto the ground or a suitable location on the vehicle body. For example, the projection lights can be mounted on the vehicle chassis and connected to the vehicle's power supply. When a door is opened, a sensor automatically activates the projection lights, projecting images or text onto the ground, thus enhancing the visual effect at night or in low-light conditions. The images or text can be the vehicle brand's logo, trademark, or any combination of patterns and text.

[0003] Conventional projector lights are designed and developed based on different car models and sizes. This means that a specific type of projector light can only be installed on the corresponding car model in order to achieve accurate focus of the projected image. Furthermore, the size, direction, and angle of the projected image are fixed and cannot be adjusted according to personal preferences. Utility Model Content

[0004] The purpose of this invention is to provide a projection device that allows users to adjust the direction, angle, and size of the projected image according to their personal preferences, particularly an adjustable projection device that can be installed on a vehicle chassis.

[0005] This invention provides an adjustable projection device for installation on a vehicle chassis. The technical means include a bracket assembly and a projection lamp assembly. The bracket assembly includes: a base for fixing to the vehicle chassis; two fixed brackets, respectively fixed to opposite sides of the base, with first annular toothed discs symmetrically formed on opposite surfaces of the two fixed brackets; and a movable bracket with a pair of lugs on opposite sides, with second annular toothed discs symmetrically formed on the pair of lugs. The centers of the second and first annular toothed discs are connected by an adjusting element. By operating the adjusting element, the second and first annular toothed discs can mesh with each other, making the movable bracket non-rotatable relative to the fixed brackets; and by operating the adjusting element, the second and first annular toothed discs can disengage, allowing the movable bracket to rotate relative to the fixed brackets. The projection lamp assembly is connected to the movable bracket and rotates with the rotation of the movable bracket, thereby adjusting the direction, angle, and size of the projected image.

[0006] In one embodiment of this invention, at least one arc-shaped slot can be provided on the horizontal surface of the base, through which a fixing screw is passed to secure the base to the vehicle chassis. Accordingly, during installation, the base can be rotated horizontally while the fixing screw is loosened, thereby adjusting the direction of the projected image horizontally.

[0007] In one embodiment of this invention, the first annular toothed disc is formed facing each other on the two fixed supports, and the second annular toothed disc is formed back-to-back on the pair of lugs. This allows the first and second annular toothed discs to face each other.

[0008] Preferably, a threaded hole can be formed at the center of the second annular gear disk, and a central hole can be formed at the center of the first annular gear disk. The adjusting element has an external thread. The center connection between the second annular gear disk and the first annular gear disk is completed by passing the adjusting element through the central hole and locking the external thread into the threaded hole. Accordingly, when the adjusting element is tightened, the first and second annular gear disks mesh with each other. When the adjusting element is loosened, the first and second annular gear disks can be separated or partially meshed and locked, thereby allowing the adjusting bracket to be rotated to adjust the angle and size of the image projected onto the ground by the projection lamp assembly.

[0009] In one embodiment of this invention, the projection lamp assembly may include: a housing; a lens assembly disposed within the housing, the lens assembly including an image element; a lamp board assembly disposed within the housing, the lamp board assembly including a circuit board and a light-emitting element electrically connected to the circuit board, the light generated by the light-emitting element projecting the image of the image element out of the housing through the lens assembly; and a heat sink connected to the housing for absorbing and dissipating the heat generated by the lamp board assembly, the heat sink being connected and fixed to the movable bracket.

[0010] Preferably, a plurality of fins are formed on the outer surface of the heat sink. This allows for efficient and rapid heat transfer from the lamp panel assembly to the fins for dissipation. Attached Figure Description

[0011] Figure 1 A three-dimensional view showing the assembled appearance of the projection device of this creation;

[0012] Figure 2 An exploded three-dimensional diagram showing the combination relationship of the main components of the projection device created in this work;

[0013] Figure 3 A three-dimensional view showing the projection device of this creation mounted behind a vehicle chassis;

[0014] Figure 4A plan view showing the projection device of this creation mounted behind the vehicle chassis;

[0015] Figure 5 A schematic diagram illustrating how the projection device's base can be mounted on a vehicle chassis to adjust the angle of the projected image; and

[0016] Figure 6 This is a plan view showing the base of the projection device of this invention mounted on a vehicle chassis.

[0017] In the picture:

[0018] 10: Bracket Assembly

[0019] 101: Base

[0020] 1011: Arc-shaped slot

[0021] 1012: Screw hole

[0022] 1013: Fixing screws

[0023] 102: Fixed bracket

[0024] 1021: First annular gear disc

[0025] 1022: Center Hole

[0026] 1023: Hole

[0027] 1024: Fixing screw

[0028] 1025: Adjustment element

[0029] 103: Movable support frame

[0030] 1031: Protruding ears

[0031] 1032: Second annular toothed disc

[0032] 1033: Screw hole

[0033] 1034: Hole

[0034] 1035: Fixing screw

[0035] 20: Projector Lamp Assembly

[0036] 201: Outer shell

[0037] 202: Lens assembly

[0038] 203: Light panel assembly

[0039] 204: Heat sink

[0040] 2041: Perforation

[0041] 2042: Screw hole

[0042] 205: Fixing screw

[0043] 30: Power cord

[0044] 40: Vehicle chassis. Detailed Implementation

[0045] To facilitate understanding of this invention, it will be described in detail below with reference to the accompanying drawings and embodiments. The drawings show only a portion of the embodiments of this invention, not all of them. This invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to enable a more thorough and complete understanding of the content disclosed herein. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without inventive effort are within the scope of protection of this invention.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this specification is for descriptive purposes only and is not intended to be limiting of the invention.

[0047] like Figure 1 and Figure 2 As shown, the adjustable projection device provided in this invention is suitable for installation on a vehicle chassis and, in conjunction with sensors and circuitry, automatically projects an image onto the ground when the vehicle door is opened, and interrupts the projection when the door is closed. The adjustable projection device includes a bracket assembly 10 and a projection lamp assembly 20. The bracket assembly 10 further includes a base 101, two fixed brackets 102, and a movable bracket 103; wherein the base 101 is a component for fixing to the vehicle chassis 40 (e.g., ...). Figure 3 As shown), it can be a plate-like body, and has at least one arc-shaped slot 1011 on its horizontal plane, preferably forming mutually symmetrical arc-shaped slots 1011 on its opposite two planes, thereby allowing it to be locked to the vehicle chassis 40 by passing a fixing screw 1013 through the arc-shaped slot 1011 (as shown). Figure 3 and Figure 4 As shown), and depending on the chassis structure differences of different vehicles, the base 101 can be rotated horizontally with the fixing screw 1013 not tightened (that is, the fixing screw 1013 moves relative to the arc-shaped slot 1011, as shown). Figure 6 As shown), adjust the direction of the base 101, and then tighten the fixing screw 1013; in addition, screw holes 1012 are provided on the opposite sides of the base 101 for installing the fixing bracket 102.

[0048] The two fixed brackets 102 are respectively fixed to opposite sides of the base 101, such as Figure 2 As shown, the two fixed brackets 102 have appropriate lengths, and a first annular toothed disc 1021 is symmetrically formed at one end of their opposite faces. A central hole 1022 is formed in the center of the first annular toothed disc 1021. A hole 1023 is formed at the other end of the fixed bracket 102, through which a fixing screw 1024 can be passed and locked into the screw hole 1012 on the side of the base 101 to fix the two fixed brackets 102 to the opposite sides of the base 101 respectively.

[0049] like Figure 2 As shown, the movable bracket 103 has an appropriate length and is integrally formed with a pair of lugs 1031 located on opposite sides. The pair of lugs 1031 symmetrically form second annular toothed discs 1032. More specifically, the pair of second annular toothed discs 1032 are formed back-to-back on the pair of lugs 1031, and a screw hole 1033 is formed in the center of each second annular toothed disc 1032. The second annular toothed disc 1032 is connected to the center of the first annular toothed disc 1021 by an adjusting element 1025. Specifically, the adjusting element 1025 has external threads (e.g., screws or bolts). When the pair of first annular toothed discs 1021 and the pair of second annular toothed discs 1032 are mated facing each other, the adjusting element 1025 is passed through the central hole 1022 and then locked into the screw hole 1033 to complete the connection. Accordingly, as... Figure 4 and Figure 5 As shown, when the adjusting element 1025 is tightened, the second annular toothed disc 1032 and the first annular toothed disc 1021 are engaged and fixed to each other, so that the movable bracket 103 cannot rotate relative to the fixed bracket 102. When the adjusting element 1025 is loosened, the second annular toothed disc 1032 and the first annular toothed disc 1021 can be separated from each other. At this time, the movable bracket 103 can rotate relative to the fixed bracket 102, thereby allowing the angle of the movable bracket 103 relative to the fixed bracket 102 to be adjusted.

[0050] like Figure 2 As shown, the projection lamp assembly 20 is connected to the movable bracket 103 to rotate with the movable bracket 103, thereby adjusting the direction, angle, and size of the projected image. Specifically, the projection lamp assembly 20 includes a housing 201, a lens assembly 202, a lamp panel assembly 203, and a heat sink 204; wherein, the housing 201 is a hollow shell with a projection hole at one end (located in...). Figure 2 The lower end of the housing 201 shown is not marked; the lens assembly 202 and the lamp panel assembly 203 are assembled together inside the housing 201, and then the heat sink 204 is covered and fixed to the housing 201.

[0051] The lens assembly 202 includes a modularly packaged lens and an image element (not shown). The image element is a film with patterns, text, etc., and is positioned on the optical path of the lens. The lamp panel assembly 203 includes a circuit board and a light-emitting element (e.g., an LED) electrically connected to the circuit board. The circuit board is electrically connected to the vehicle's power supply via a power line 30. When powered on, the light-emitting element projects light through the lens assembly, projecting the image from the image element onto the housing 201. Both the lens assembly 203 and the lamp panel assembly 203 are prior art and not the technical features claimed in this application; therefore, further detailed descriptions are omitted.

[0052] The heat sink 204 is formed with a plurality of fins on its outer surface, and has through holes 2041 at the four corners and a plurality of screw holes 2042 in the middle area. After the lens assembly 202 and the lamp panel assembly 203 are installed in the housing 201 and the heat sink 204 is covered by the housing 201, the heat sink 204 and the housing 201 are fixed together by using fixing screws 205 through the through holes 2041 and then locking them into the screw holes of the housing 201. The movable bracket 103 is connected to the projection lamp assembly 20 by fixing screws 1035 through the holes 1034 on the movable bracket 103 and then locking them into the screw holes 2042 of the heat sink 204. The heat generated when the light-emitting element of the lamp panel assembly 203 emits light can be transferred to the heat sink 204 and dissipated by the plurality of fins formed thereon.

[0053] like Figure 4 and Figure 5 As shown, after the projection device of this invention is installed on the vehicle chassis 40, the direction, angle, and size of the projected image from the projection lamp assembly 20 can be adjusted by operating the adjustment element 1025. That is, when the adjustment element 1025 is loosened, the second annular toothed disc 1032 can be separated from the first annular toothed disc 1021. At this time, the movable bracket 103 can rotate relative to the fixed bracket 102, thereby adjusting the angle of the movable bracket 103 and the projection lamp assembly 20 relative to the fixed bracket 102. Then, the adjustment element 1025 is tightened so that the second annular toothed disc 1032 and the first annular toothed disc 1021 mesh with each other to fix the adjusted direction and angle. By adjusting the direction and angle of the projection lamp assembly 20, the size of the projected image can be adjusted simultaneously. That is, when the projected image is perpendicular to the ground, its image is the smallest. The smaller the angle between the emitted light of the projection lamp assembly and the ground (that is, the larger the angle with the vertical line), the larger the image projected on the ground. Therefore, the projection device of this invention is suitable for installation on the chassis of any type of vehicle and provides convenient adjustment of the direction, angle and size of the projected image.

[0054] The embodiments described above are merely preferred embodiments of this invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this invention. It should be noted that those skilled in the art can make various changes and modifications without departing from the inventive concept, and these all fall within the protection scope of this invention.

Claims

1. An adjustable projection device for mounting on a vehicle chassis, characterized in that, include: The bracket assembly includes: The base is used to secure it to the vehicle chassis; Two fixed brackets are respectively fixed to opposite sides of the base, and the opposite surfaces of the two fixed brackets are symmetrically formed with first annular toothed discs; and The movable support has a pair of lugs located on opposite sides thereon, and the pair of lugs symmetrically form a second annular toothed disc. The center of the second annular toothed disc is connected to the center of the first annular toothed disc by an adjusting element. Specifically, by operating the adjusting element, the second annular toothed disc and the first annular toothed disc can mesh with each other, making the movable support non-rotatable relative to the fixed support. By operating the adjustment element, the second annular toothed disc and the first annular toothed disc can be disengaged from each other, allowing the movable support to rotate relative to the fixed support. The projection lamp assembly is connected to the movable bracket and can rotate with the rotation of the movable bracket, thereby adjusting the direction, angle and size of the projected image.

2. The adjustable projection device for mounting on a vehicle chassis as described in claim 1, characterized in that, The base has at least one arc-shaped slot on its horizontal surface, through which a fixing screw is passed to fix the base to the vehicle chassis.

3. The adjustable projection device for mounting on a vehicle chassis as described in claim 1, characterized in that, The first annular toothed disc is formed facing each other on the two fixed supports, and the second annular toothed disc is formed back to back on the pair of lugs.

4. The adjustable projection device for mounting on a vehicle chassis as described in claim 3, characterized in that, The second annular toothed disc has a threaded hole at its center, and the first annular toothed disc has a central hole at its center. The adjusting element has an external thread. The connection between the center of the second annular toothed disc and the center of the first annular toothed disc is completed by passing the adjusting element through the central hole and locking the external thread into the threaded hole.

5. The adjustable projection device for mounting on a vehicle chassis as described in claim 1, characterized in that, The projection lamp assembly includes: shell; A lens assembly, disposed within the housing, the lens assembly including an image element; A light panel assembly, disposed within the housing, includes a circuit board and light-emitting elements electrically connected to the circuit board. Light generated by the light-emitting elements projects an image from an image element out of the housing through the lens assembly. A heat sink is connected to the housing to absorb and dissipate the heat generated by the lamp panel assembly. The heat sink is fixedly connected to the movable bracket.

6. The adjustable projection device for mounting on a vehicle chassis as described in claim 5, characterized in that, The outer surface of the heat sink is formed with a plurality of fins.

Images