A projection device

Abstract

The present invention discloses a projection device, including a lighting device; an imaging device, detachably connected to the lighting device; and an adsorbent and an adsorbed body, respectively arranged at one end of the imaging device and the lighting device; the adsorbent can adsorb the adsorbed body, the adsorbent is a magnet, and the adsorbed body is a magnet or a ferromagnetic metal part. The present invention divides the projection device into an imaging device and a lighting device, and the two devices are fixed by adsorption between magnets or magnets and ferromagnetic metal parts, which effectively improves the operating efficiency when replacing projection films and correcting imaging patterns, and is convenient and quick to disassemble and assemble, simple to operate, and has high efficiency in replacing projection films, thereby improving user experience.

Description

Technical Field

[0001] The present application relates to the technical field of lamps, and in particular to a projection device. Background Art

[0002] A projection device is a lamp that uses light to project images and / or text on a screen, wall, or floor, creating a strong visual effect and setting an atmosphere. It can also project warning signs for safety precautions. Projection devices are widely used in offices, clothing stores, hotels, professional display windows, homes, and other places that require decorative effects and accent lighting.

[0003] The projection devices currently sold on the market are large in size, and the projection film is installed inside the lamp body. It is troublesome to replace the projection film, and the imaging pattern cannot be corrected after the projection film is installed. In general, to correct the imaging pattern, it is necessary to turn on the light to compare the imaging pattern effect while fixing the projection film during installation, which is very troublesome. Not only does it waste working time, but the installation efficiency is low, and the stability and speed of replacing the projection film cannot be guaranteed. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a projection device to solve the problems of the prior projection device having complicated installation operations when replacing projection films and being unable to quickly remove and replace projection films and correct imaging patterns.

[0005] In response to the above technical problems, the present invention provides a projection device comprising: a lighting device; an imaging device, detachably connected to the lighting device; and an adsorbent and an adsorbed body, respectively arranged at one end of the imaging device and the lighting device; the adsorbent can adsorb the adsorbed body, the adsorbent is a magnet, and the adsorbed body is a magnet or a ferromagnetic metal part.

[0006] Furthermore, the adsorbent is a permanent magnet; the material of the ferromagnetic metal part is a monomer or compound containing at least one metal of iron, cobalt and nickel.

[0007] Furthermore, the lighting device includes a first shell, which is a heat sink; and a magnetic ring, which is a magnet or a ferromagnetic metal piece, fixedly connected to the bottom surface of the first shell on a side facing the imaging device.

[0008] Furthermore, the lighting device includes: a light source located in the first shell; a lens holder fixed in the first shell; and a lens fixed to the middle of the lens holder and arranged opposite to the light source.

[0009] Furthermore, the imaging device includes: a second shell, which is a column; a film mounting frame, which is annular and is installed on the top of the second shell; the top surface of the film mounting frame is provided with at least one magnetic suction groove; and at least one magnetic suction block, which is a magnet or a ferromagnetic metal part, which is installed in the magnetic suction groove respectively.

[0010] Furthermore, at least one hook is provided on the top of the film mounting frame for fixing the film.

[0011] Furthermore, the projection device includes: at least one connecting groove, which is recessed in the top surface of the film mounting frame of the imaging device; and at least one connecting rod, which protrudes from the bottom surface of the lens bracket of the lighting device; each connecting rod can be detachably inserted into a connecting groove.

[0012] Furthermore, the lighting device also includes: a rotating shaft extending to the outside of the first shell, with a screw at its end; a rear end cover located in the first shell; and a rotating shaft pressure cover located in the first shell.

[0013] Furthermore, the lighting device also includes a guide rail box, which includes: an upper cover body that is slidably mounted on the guide rail; and a lower cover body that is fixedly connected to the top of the lighting device and detachably connected to the upper cover body.

[0014] Furthermore, the guide rail box also includes a nut threadedly connected to a screw of a rotating shaft of the lighting device, so as to fix the lower cover to the rotating shaft.

[0015] Furthermore, a second magnet or a second ferromagnetic metal piece is provided inside or on the upper surface of the lower cover body; a third magnet is provided inside or on the lower surface of the upper cover body, which can attract the second magnet or the second ferromagnetic metal piece.

[0016] Furthermore, the imaging device further comprises: a first imaging tube in which a first lens is arranged and arranged opposite to the film mounting frame; and a second imaging tube in which a second lens is arranged and arranged opposite to the first lens.

[0017] Further, one end of the first imaging barrel of the imaging device is threadedly connected to the second shell, and the other end thereof is threadedly connected to the second first imaging barrel.

[0018] Furthermore, the imaging device also includes a damping ring sleeved on the outer side wall of the first imaging tube.

[0019] Beneficial effects of the present invention: The present invention provides a projection device, which is divided into two parts, an imaging device and an illumination device. The two devices are detachably connected by adsorption between magnets and magnets or between magnets and ferromagnetic metal parts. When replacing the projection film, it is only necessary to separate the imaging device from the illumination device, pull out the original projection film, and insert a new projection film, so that the projection film can be quickly removed and replaced. Since the projection film is installed on the imaging device, when the imaging device is connected to the illumination device, the imaging device can be rotated to achieve the purpose of correcting the imaging pattern. The present invention is convenient and quick to disassemble and assemble, simple to operate, and has a high efficiency in replacing the projection film, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 is a schematic diagram of a state before an imaging device and an illumination device are connected according to an embodiment of the present invention;

[0022] Figure 2 It is a schematic structural diagram of a lighting device according to an embodiment of the present invention, mainly showing a first housing and its internal components;

[0023] Figure 3 is a schematic structural diagram of an imaging device according to an embodiment of the present invention, mainly showing a second housing and its internal components;

[0024] Figure 4 is a schematic structural diagram of a film fixing frame of an imaging device according to an embodiment of the present invention;

[0025] Figure 5 It is a structural schematic diagram of an imaging device according to an embodiment of the present invention, mainly showing a first imaging tube and its internal components;

[0026] Figure 6 It is a schematic diagram of the structure of a guide rail box according to an embodiment of the present invention, and only the internal components thereof are shown;

[0027] Description of reference numerals:

[0028] 1 Projection device 100 Projection film

[0029] 10 Illumination device 20 Imaging device

[0030] 11 Rail Box

[0031] 101 first shell 102 magnetic ring

[0032] 103 light source 104 lens holder

[0033] 1041 connecting rod 105 lens

[0034] 106 Shaft 1061 Screw

[0035] 107 rear end cover 108 shaft cover

[0036] 201 second housing 202 film fixing frame

[0037] 2021 Magnetic slot 2022 Connection slot

[0038] 2023 hook 203 magnetic block

[0039] 204 first imaging tube 2041 threaded portion

[0040] 2042 Damping part 2043 Damping ring

[0041] 205 lens fastener 206 first imaging lens

[0042] 207 second imaging tube 208 second imaging lens

[0043] 111 lower cover 112 connector

[0044] 113 limit stopper 114 insulation cover

[0045] 115 nut 116 third magnet

[0046] 117 Upper cover DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described below are only part of the embodiments of the present application, rather than all of the embodiments. It should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise specified, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the drawings; and "inside" and "outside" refer to the outline of the device.

[0048] The embodiment of the present application provides a projection device. The following are detailed descriptions. It should be noted that the description order of the following embodiments is not intended to limit the preferred order of the embodiments.

[0049] Example 1

[0050] See also Figure 1 The present invention provides a projection device 1, comprising an illumination device 10 and an imaging device 20. The imaging device 20 is detachably connected to the illumination device 10. An adsorbent and an adsorbed body are respectively arranged at one end of the imaging device 20 and the illumination device 10; the adsorbent can adsorb the adsorbed body, the adsorbent is a magnet, and the adsorbed body is a magnet or a ferromagnetic metal part.

[0051] See also Figure 2 The lighting device 10 includes: a first shell 101, a magnetic ring 102, a light source 103, a lens bracket 104 and a lens 105.

[0052] The first housing 101 is a heat sink, which is a cylindrical structure with one end being an open end and the other end being a closed end. The magnetic ring 102 is fixedly connected to the bottom surface of the first housing 101 facing the imaging device 20. The light source 103 is located in the first housing 101, and the lens holder 104 is fixed to the first housing 101. The lens 105 is fixed to the middle of the lens holder 104 and is arranged opposite to the light source 103.

[0053] See also Figure 3 and Figure 4 The imaging device 20 includes: a second shell 201, a film mounting frame 202 and a magnetic block 203.

[0054] The second housing 201 is a column including a cylindrical cavity, and the film mounting frame 202 is annular and mounted on the top of the second housing 201. The top surface of the film mounting frame 202 is evenly spaced with at least one magnetic suction groove 2021, and at least one magnetic suction block 203 is respectively installed in the magnetic suction groove 2021 and can absorb the lighting device 10. At least one hook 2023 is provided on the top of the film mounting frame 202 to fix the projection film 100, which can effectively prevent the projection film 100 from falling off.

[0055] In this embodiment, the magnetic block 203 is a magnet, the magnetic ring 102 is a ferromagnetic metal piece, the magnetic block 203 (i.e., the magnet) is located at one end of the imaging device 20, and the magnetic ring 102 (i.e., the ferromagnetic metal piece) is located at one end of the lighting device 10. The magnet is a permanent magnet, and the material of the ferromagnetic metal piece is a monomer or compound containing at least one metal of iron, cobalt, and nickel. The lighting device 10 and the imaging device 20 are detachably connected by adsorption between the ferromagnetic metal piece and the magnet.

[0056] In this embodiment, the lighting device 10 further includes at least one connecting rod 1041 protruding from the bottom surface of the lens bracket 104 of the lighting device 10. The imaging device 20 further includes at least one connecting groove 2022 recessed in the top surface of the film mounting frame 202 of the imaging device 20, and each connecting rod 1041 of the transparent bracket 104 of the lighting device 10 can be detachably inserted into a connecting groove 2022. The cooperation between the connecting rod 1041 and the connecting groove 2022 can make the lighting device 10 detachably connected to the imaging device 20, and prevent the lighting device and the imaging device from being unstable due to insufficient magnetic attraction.

[0057] See also Figure 1 and Figure 2 The lighting device 10 also includes: a rotating shaft 106, a rear end cover 107, a rotating shaft pressure cover 108, and a guide rail box 11.

[0058] The shaft 106 extends to the outside of the first shell 101 and has a screw 1061 at its end; the shaft 106 facilitates adjusting the angle of the projection device, and the rear end cover 107 is located in the first shell 101; and the shaft pressure cover 108 is located in the first shell 101.

[0059] See also Figure 5 The guide rail box 11 includes: a lower cover 111, a connector 112, a limit stop plate 113, an insulating cover 114, a nut 115, a fourth magnet 116, and an upper cover 117.

[0060] The upper cover 117 is slidably mounted on the guide rail; and the lower cover 111 is fixedly connected to the top of the lighting device 10 and detachably connected to the upper cover 117. A third magnet or a second ferromagnetic metal piece is provided inside or on the upper surface of the lower cover 111; a fourth magnet 116 is provided inside or on the lower surface of the upper cover 117, which can attract the third magnet or the second ferromagnetic metal piece. The nut 115 is threadedly connected to the screw 1061 of the rotating shaft 106 of the lighting device 10 to fix the lower cover 111 to the rotating shaft 106. The connector 112 is sleeved on the screw 1061 of the rotating shaft 106 and placed on the lower cover body 111. The limit stop plate 113 is sleeved on the screw 1061 of the rotating shaft 106 and placed on the connector 112. The insulating cover 114 is provided on the screw 1061 of the rotating shaft 106 and placed on the limit stop plate 113 and the connector 112. The projection device 1 can be adsorbed on any magnetic track through the guide rail box 11.

[0061] See also Figure 6 The imaging device 20 further includes: a first imaging tube 204 , a lens fastener 205 , a first lens 206 , a second imaging tube 207 , a damping ring 2043 , and a second lens 208 .

[0062] The first imaging barrel 204 is a column, in which a first lens 206 is arranged opposite to the film mounting frame 202; the first lens 206 is threadedly connected to the first imaging barrel 206 through the first lens 206 mounting member, and the distance between the first lens and the film mounting frame is adjustable. The second imaging barrel 207 is provided with a second lens 208, which is arranged opposite to the first lens 206. The second lens 208 is threadedly connected to the first imaging barrel 204 through the lens fastener 205, and the distance between the second lens 208 and the film mounting frame 202 is adjustable. One end of the first imaging barrel 204 is threadedly connected to the second housing 201, and the other end thereof is threadedly connected to the second imaging barrel 207. The damping ring 2043 is sleeved on the outer wall of the first imaging barrel 204 to play a limiting role.

[0063] The first imaging lens 206 is an acrylic imaging lens, and the second imaging lens 208 is a glass imaging lens.

[0064] Specifically, when in use, the projection film 100 is fixed to the film fixing frame 202 by the hook 2023, and then the imaging device 20 and the lighting device 10 are magnetically connected to the first magnet by the ferromagnetic metal part. The lighting device 10 projects the pattern and / or text on the projection film 100 onto the surface of the object in the form of light through the imaging device 20.

[0065] When replacing the projection film 100, the imaging device 20 is separated from the lighting device 10, the original projection film 100 is pulled out from the film holder 202, and then the projection film 100 with the new projection is inserted into the film holder 202, and the projection film 100 is fixed to the film holder 202 by the hook 2023.

[0066] When correcting the imaging pattern, when the imaging device 20 is connected to the lighting device 10, the imaging device 20 does not need to be separated from the lighting device 10, and the imaging device 20 can be directly rotated to achieve the purpose of correcting the position of the imaging pattern and / or text.

[0067] Example 2

[0068] This embodiment includes all the schemes of Embodiment 1, and the difference from Embodiment 1 is that the magnetic block 203 of this embodiment is a magnet, and the magnetic ring 102 is also a magnet. The magnetic block 203 (i.e., the magnet) is located at one end of the imaging device 20, and the magnetic ring 102 (i.e., the magnet) is located at one end of the lighting device 10. Both magnets are permanent magnets, and the S pole of one permanent magnet is arranged adjacent to the N pole of the other permanent magnet to ensure that the two attract each other instead of repelling each other. The lighting device 10 and the imaging device 20 are detachably connected by adsorption between magnets. Disassembly and assembly are convenient and quick, and the operation is simple, which is convenient for replacing projection film and correcting projection images.

[0069] Example 3

[0070] The embodiment includes all the schemes of embodiment 1, except that the magnetic block 203 of this embodiment is a ferromagnetic metal piece, the magnetic ring 102 is a magnet, the magnetic block 203 (i.e., the ferromagnetic metal piece) is located at one end of the imaging device 20, and the magnetic ring 102 (i.e., the magnet) is located at one end of the lighting device 10. The magnet is a permanent magnet, and the material of the ferromagnetic metal piece is a monomer or compound containing at least one metal of iron, cobalt, and nickel. The lighting device 10 and the imaging device 20 are detachably connected by adsorption between the ferromagnetic metal piece and the magnet. The disassembly and assembly are convenient and quick, the operation is simple, and it is convenient to replace the projection film and correct the projection image.

[0071] The above is a detailed introduction to a projection device provided in an embodiment of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for those skilled in the art, according to the idea of ​​the present application, there may be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as limiting the present application.

Claims

1. A projection device, It is characterized in that include lighting fixtures; as well as an imaging device, detachably connected to the lighting device; The adsorbent and the adsorbed object are respectively arranged at one end of the imaging device and the lighting device; The adsorbent is capable of adsorbing the adsorbed object, the adsorbent is a magnet, and the adsorbed object is a magnet or a ferromagnetic metal piece; The lighting device comprises: A first housing, which is a heat sink; and A magnetic ring, which is a magnet or a ferromagnetic metal piece, is fixedly connected to the bottom surface of the first housing facing the imaging device; A light source is located in the first housing; A lens holder is fixed in the first housing; and A lens is fixed to the middle of the lens bracket and is arranged opposite to the light source; The imaging device comprises: The second shell is a cylinder; a film mounting frame, which is annular and is mounted on the top of the second housing; the top surface of the film mounting frame is provided with at least one magnetic suction groove; and At least one magnetic attraction block, which is a magnet or a ferromagnetic metal piece, is installed in the magnetic attraction grooves respectively.

2. The projection device according to claim 1, It is characterized in that The adsorbent is a permanent magnet; The material of the ferromagnetic metal piece is a monomer or compound containing at least one metal of iron, cobalt and nickel.

3. The projection device according to claim 1, It is characterized in that The top of the film mounting frame is provided with at least one hook for fixing the film.

4. The projection device according to claim 1, It is characterized in that include: at least one connecting groove, recessed in the top surface of the film mounting frame of the imaging device; as well as At least one connecting rod protrudes from the bottom surface of the lens bracket of the lighting device; each connecting rod can be detachably inserted into a connecting groove.

5. The projection device according to claim 1, It is characterized in that The lighting device further comprises: A rotating shaft extending to the outside of the first housing and having a screw at the end thereof; a rear end cover, located in the first shell; and The rotating shaft pressure cover is located in the first shell.

6. The projection device according to claim 1, It is characterized in that The lighting device further comprises a guide rail box, and the guide rail box comprises: An upper cover body is slidably mounted on the guide rail; and The lower cover body is fixedly connected to the top of the lighting device and detachably connected to the upper cover body.

7. The projection device according to claim 6, It is characterized in that The guide rail box also includes: A nut is threadedly connected to a screw of a rotating shaft of the lighting device, and is used to fix the lower cover to the rotating shaft.

8. The projection device according to claim 6, It is characterized in that A second magnet or a second ferromagnetic metal piece is provided inside or on the upper surface of the lower cover; A third magnet is disposed inside or on the lower surface of the upper cover body, and is capable of attracting the second magnet or the second ferromagnetic metal part.

9. The projection device according to claim 1, It is characterized in that The imaging device further comprises: A first imaging tube, in which a first lens is disposed, and arranged opposite to the film mounting frame; and The second imaging tube has a second lens disposed therein and is arranged opposite to the first lens.

10. The projection device according to claim 9, It is characterized in that One end of the first imaging tube is threadedly connected to the second shell, and the other end of the first imaging tube is threadedly connected to the second imaging tube.

11. The projection device according to claim 9, It is characterized in that The imaging device further comprises a damping ring which is sleeved on the outer side wall of the first imaging tube.

Images