An adjustable-size integral column

Abstract

The present invention provides an adjustable-size integrating column, which comprises lens assemblies spliced with each other. The lens assembly includes a plate body and a reflective lens disposed on one side surface of the plate body. Vertical plates are perpendicularly provided on both sides of the side surface of the plate body away from the reflective lens. A threaded rod is erected in the middle of the two vertical plates. A slider is provided on the threaded rod. The slider moves along the threaded rod and drives the moving plate to move closely against the side surface of the plate body. A first magnetic strip is embedded in the side surface of the moving plate close to the plate body. A second magnetic strip is provided inside one of the vertical plates. The two lens assemblies are magnetically adsorbed through the first magnetic strip and the second magnetic strip and form a vertical state. The four lens assemblies are spliced with each other through magnetic adsorption and form a rectangular light path channel. The integrating column is installed in the projector through a bracket. It can change the light path channel by adjusting the positional relationship between the lenses so as to adapt to different operation requirements. In case of damage, it is not necessary to replace the whole integrating column, reducing waste and cost.

Description

Technical Field

[0001] The present invention relates to the field of optical path components of projectors, and more specifically, to an integral column with adjustable dimensions. Background Art

[0002] In a projection device, an integral column is an important optical element. By using the inner reflection surface of a hollow columnar shape, light is reflected multiple times to achieve the purpose of uniform illumination. Most of the existing integral columns are assembled by splicing several lenses with glue, and their shapes and sizes are fixed, and the optical path channels cannot be modified. Therefore, the same integral column cannot be applied to different projection devices. Moreover, if one lens is damaged, the entire integral column cannot be used continuously and needs to be replaced as a whole, resulting in waste. Summary of the Invention

[0003] In order to overcome the defects of the prior art, the technical problem to be solved by the present invention is to provide an integral column with adjustable dimensions, which has a novel structure and can change the optical path channel by adjusting the positional relationship between the lenses, so as to adapt to different operation requirements. If damage occurs, it is not necessary to replace the integral column as a whole, reducing waste and cost.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] The present invention provides an integral column with adjustable dimensions, including lens assemblies spliced with each other. The lens assemblies are spliced with each other to form a rectangular optical path channel. The lens assembly includes a plate body and a reflective lens provided on one side surface of the plate body. Vertical plates are provided on both sides of the side surface of the plate body away from the reflective lens. A threaded rod is erected in the middle of the two vertical plates. A slider is provided on the threaded rod. The slider moves along the threaded rod and drives a moving plate to closely move along the side surface of the plate body. A first magnet strip is embedded in the side surface of the moving plate close to the plate body. The first magnet strip is arranged along the length direction of the moving plate. A second magnet strip is arranged inside one of the vertical plates. The second magnet strip is arranged along the length direction of the vertical plate. The two lens assemblies are magnetically adsorbed through the first magnet strip and the second magnet strip and form a vertical state. The four lens assemblies are magnetically adsorbed and spliced with each other to form the rectangular optical path channel. The integral column is installed in a projector through a bracket.

[0006]

[0007] In a preferred technical solution of the present invention, the outer contour of the slider is disk-shaped. The moving plate is provided with a card slot corresponding to the slider. The card slot is adapted to the shape of the slider, and the bottom of the slider extends into the card slot.

[0008] ​In a preferred technical solution of the present invention, guide grooves are provided at both ends of the side surface of the moving plate close to the plate body. Guide strips are fixedly provided on the plate body corresponding to the two guide grooves. Both ends of the guide strips abut against the two vertical plates, and the moving plate moves along the guide strips through the guide grooves.

[0009] In a preferred technical solution of the present invention, both the vertical plates and the plate body are made of plastic, and the vertical plates wrap the second magnet strip therein.

[0010] In a preferred technical solution of the present invention, scales are provided on the side surface of the plate body away from the reflecting lens, and the scales are arranged along the axial direction of the threaded rod.

[0011] In a preferred technical solution of the present invention, bumps are fixedly provided at both ends of the side surface of the plate body away from the reflecting lens. The bracket includes a strip frame, a groove is formed on the top surface of the strip frame, the bumps are adapted to the grooves, and the integrating column is erected on the two brackets.

[0012] In a preferred technical solution of the present invention, the length of the strip frame is adapted to the distance between the two vertical plates.

[0013] The beneficial effects of the present invention are as follows:

[0014] An adjustable-size integrating column provided by the present invention has a novel structure and consists of four lens assemblies to form a rectangular light path channel. Each lens assembly is fixed by magnetic adsorption. By adjusting the positional relationship between the reflecting lenses, the change of the light path channel is realized, so as to adapt to different operation requirements. Also, because it is fixed by magnetic adsorption, the reflecting lenses maintain an integral structure and there will be no redundant creases or splicing situations, ensuring the normal progress of light refraction. Moreover, the cooperation of the threaded rod, the slider and the moving plate on each lens assembly can move and fix the first magnet strip, thereby realizing the position adjustment of the lens assembly. The overall structure is simple to operate and convenient to use. Secondly, the structures of each lens assembly are the same, and multiple lens assemblies are independent of each other. If damage occurs, there is no need to replace the entire integrating column, reducing waste and cost. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of an adjustable-size integrating column provided in a specific embodiment of the present invention;

[0016] Figure 2 is a schematic structural diagram of a lens assembly provided in a specific embodiment of the present invention;

[0017] Figure 3 is a top view of a lens assembly provided in a specific embodiment of the present invention;

[0018] Figure 4It is the top view of the bracket provided in the specific embodiment of the present invention.

[0019] In the figure:

[0020] 100, lens assembly; 110, plate body; 111, scale; 120, reflective lens; 130, vertical plate; 140, threaded rod; 150, slider; 160, moving plate; 161, card slot; 170, guide bar; 180, bump; 200, optical path channel; 310, first magnet bar; 320, second magnet bar; 400, bracket; 410, frame bar; 420, groove. Specific Embodiment

[0021] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific embodiments.

[0022] As Figures 1 to 3 shown, a size-adjustable integral column is disclosed in the specific embodiment of the present invention, including a lens assembly 100 spliced with each other. The lens assemblies 100 are spliced with each other to form a rectangular optical path channel 200; the lens assembly 100 includes a plate body 110 and a reflective lens 120 provided on one side surface of the plate body 110. Vertical plates 130 are perpendicularly provided on both sides of the side surface of the plate body 110 away from the reflective lens 120. A threaded rod 140 is erected in the middle of the two vertical plates 130. A slider 150 is provided on the threaded rod 140. The slider 150 moves along the threaded rod 140 and drives the moving plate 160 to closely move along the side surface of the plate body 110. A first magnet bar 310 is embedded in the side surface of the moving plate 160 close to the plate body 110. The first magnet bar 310 is arranged along the length direction of the moving plate 160; a second magnet bar 320 is provided inside one of the vertical plates 130. The second magnet bar 320 is arranged along the length direction of the vertical plate 130. The two lens assemblies 100 are magnetically adsorbed through the first magnet bar 310 and the second magnet bar 320 and form a vertical state. The four lens assemblies 100 are magnetically adsorbed and spliced with each other to form the rectangular optical path channel 200; the integral column is installed in the projector through a bracket 400.

[0023] The above-mentioned adjustable-size integrating column has a novel structure. It consists of four lens assemblies 100 to form a rectangular optical path channel 200. Each lens assembly 100 is fixed by magnetic adsorption. By adjusting the positional relationship between the reflecting lenses 120, the change of the optical path channel 200 is realized, so as to adapt to different operation requirements. Also, because it is fixed by magnetic adsorption, the reflecting lenses 120 maintain an integral structure without any redundant creases or splicing situations, ensuring the normal progress of light refraction. Moreover, the cooperation of the threaded rods 140, sliders 150 and moving plates 160 on each lens assembly 100 can move and fix the first magnet bar 310, thereby realizing the position adjustment of the lens assembly 100. The overall structure is simple to operate and convenient to use. Secondly, each lens assembly 100 has the same structure and multiple lens assemblies 100 are independent of each other. If there is any damage, there is no need to replace the whole integrating column, reducing waste and cost.

[0024] Further, as Figure 2 shown, the outer contour of the slider 150 is in a disc shape. The moving plate 160 is provided with a card slot 161 corresponding to the slider 150. The card slot 161 is adapted to the shape of the slider 150, and the bottom of the slider 150 extends into the card slot 161. This structural design can realize the movable cooperation between the slider 150 and the moving plate 160, without affecting the normal rotation of the slider 150, and at the same time can drive the moving plate 160 to move, so as to change the position of the first magnet bar 310 to achieve the effect of position adjustment.

[0025] Further, as Figure 3 shown, both ends of the side of the moving plate 160 close to the plate body 110 are provided with guide grooves. Corresponding to the two guide grooves on the plate body 110, guide bars 170 are fixed. The two ends of the guide bars 170 abut against the two vertical plates 130. The moving plate 160 moves along the guide bars 170 through the guide grooves. This structural design can limit the moving track of the moving plate 160 to ensure the stable movement of the moving plate 160, so as to complete the position adjustment of the first magnet bar 310.

[0026] Further, both the vertical plate 130 and the plate body 110 are made of plastic, and the vertical plate 130 wraps the second magnet bar 320 inside. This structural design can prevent the second magnet bar 320 from directly contacting the reflecting lens 120, avoiding scratching the reflecting lens 120 by the second magnet bar 320, ensuring the integrity of the reflecting lens 120 and providing a good light refraction effect.

[0027] Further, a scale 111 is provided on the side of the plate body 110 away from the reflecting lens 120, and the scale 111 is arranged along the axial direction of the threaded rod 140; the provision of the scale 111 can facilitate the adjustment of alignment and facilitate the adjustment of each lens assembly 100 to a suitable position.

[0028] Further, bumps 180 are fixedly provided at both ends of the side of the plate body 110 away from the reflecting lens 120. As Figure 4 shown, the bracket 400 includes a strip frame 410, a groove 420 is formed on the top surface of the strip frame 410, the bumps 180 are adapted to the grooves 420, and the integrating column is mounted on the two brackets 400; this structural design facilitates the installation of the integrating column inside the projection device and is convenient for disassembly and assembly; the bracket 400 is installed on the housing of the projection device, and subsequently, the integrating column can be simply placed on the bracket 400.

[0029] Further, the length of the strip frame 410 is adapted to the distance between the two vertical plates 130; this structural design can facilitate the secondary clamping between the strip frame 410 and the vertical plates 130 and further improve the support stability.

[0030] The present invention is described by way of preferred embodiments. Those skilled in the art will appreciate that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and scope of the present invention. The present invention is not limited by the specific embodiments disclosed herein, and other embodiments falling within the scope of the claims of this application belong to the scope of protection of the present invention.

Claims

1. An adjustable-size integrating column, characterized in that: It includes spliced lens components (100), and the lens components (100) are spliced with each other to form a rectangular light path channel (200); The lens component (100) includes a plate body (110) and a reflective lens (120) provided on one side of the plate body (110). Vertical plates (130) are vertically provided on both sides of the side of the plate body (110) away from the reflective lens (120). A threaded rod (140) is erected in the middle of the two vertical plates (130). A slider (150) is provided on the threaded rod (140). The slider (150) moves along the threaded rod (140) and drives the moving plate (160) to move closely against the side of the plate body (110). A first magnet bar (310) is embedded in the side of the moving plate (160) close to the plate body (110). The first magnet bar (310) is arranged along the length direction of the moving plate (160); A second magnet bar (320) is arranged inside one of the vertical plates (130). The second magnet bar (320) is arranged along the length direction of the vertical plate (130). The two lens components (100) are magnetically adsorbed through the first magnet bar (310) and the second magnet bar (320) and form a vertical state. The four lens components (100) are magnetically adsorbed and spliced with each other to form the rectangular light path channel (200); The integrating column is installed in the projector through a bracket (400); The outer contour of the slider (150) is in the shape of a disc. The moving plate (160) is provided with a card slot (161) corresponding to the slider (150). The card slot (161) is adapted to the shape of the slider (150). The bottom of the slider (150) extends into the card slot (161); Both ends of the side of the moving plate (160) close to the plate body (110) are provided with guide grooves. Guide bars (170) are fixedly provided on the plate body (110) corresponding to the two guide grooves. The two ends of the guide bar (170) abut against the two vertical plates (130). The moving plate (160) moves along the guide bar (170) through the guide grooves.

2. The adjustable-size integrating column according to claim 1, characterized in that: Both the vertical plate (130) and the plate body (110) are made of plastic, and the vertical plate (130) wraps the second magnet bar (320) inside.

3. The adjustable-size integrating column according to claim 1, characterized in that: A scale (111) is provided on the side of the plate body (110) away from the reflective lens (120). The scale (111) is arranged along the axial direction of the threaded rod (140).

4. The adjustable-size integrating column according to claim 1, characterized in that: Both ends of the side of the plate body (110) away from the reflective lens (120) are fixedly provided with bumps (180). The bracket (400) includes a strip frame (410). A groove (420) is formed in the top surface of the strip frame (410). The bump (180) is adapted to the groove (420). The integral column is mounted on the two brackets (400).

5. The adjustable-size integral column according to claim 4, wherein: The length of the strip frame (410) is adapted to the distance between the two vertical plates (130).

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