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US-12618544-B1 - Projection lamp with replaceable grating sheet

US12618544B1US 12618544 B1US12618544 B1US 12618544B1US-12618544-B1

Abstract

Disclosed is a projection lamp with a replaceable grating sheet. The projection lamp includes a housing, a laser module, a grating module, and a control board, where the laser module, the grating module, and the control board are arranged in the housing, and the grating module is arranged in front of the laser module; and the grating module includes a motor, a gear set, a magnetic base, a magnet, an iron sheet, an iron sheet fixing base, a tray, a grating, and a grating fixing base. By improving the structure of the grating, the grating may have various pattern combinations, so that the projection styles are enriched. Furthermore, the present disclosure may also be combined with other lighting effect assemblies to create combined lighting effects through projection.

Inventors

  • Shaoqi Ji

Assignees

  • Zhongshan Yong Qi Electronic Co., Ltd.

Dates

Publication Date
20260505
Application Date
20250528

Claims (10)

  1. 1 . A projection lamp with a replaceable grating sheet, comprising a housing, a laser module, a grating module, and a control board, wherein the laser module, the grating module, and the control board are arranged in the housing, and the grating module is arranged in front of the laser module; and the grating module comprises a motor, a gear set, a magnetic base, a magnet, an iron sheet, an iron sheet fixing base, a tray, a grating, and a grating fixing base, wherein the gear set comprises a driving gear and a driven gear meshing with each other, the driving gear is coaxially fixed to an output shaft of the motor, and the driven gear is coaxially fixed to the magnetic base; the magnet is fixed to the magnetic base, the iron sheet is fixed to the iron sheet fixing base, and the iron sheet and the magnet adsorb with each other magnetically; the grating is detachably fixed to the grating fixing base; the grating fixing base and the iron sheet fixing base are fixedly connected and mounted on an inner ring of the tray, and are axially rotatable in the inner ring of the tray; the housing is provided with a tray access port, a part of the tray stretches out from the tray access port to an outer side of the housing, and the tray is slidable in and out the housing via the tray access port; the magnetic base, the iron sheet, the iron sheet fixing base, and the grating fixing base are each provided with light through holes corresponding to the laser module, and the grating corresponds to the light through hole of the grating fixing base; an emission aperture is arranged on a front side surface of the housing and corresponds to the grating; and the control board is electrically connected to and controls the motor and the laser module.
  2. 2 . The projection lamp with a replaceable grating sheet according to claim 1 , wherein the laser module comprises a plurality of laser lamps with different colors and a module bracket, a mounting through slot is arranged in an inner cavity of the module bracket, and the plurality of laser lamps with different colors are inserted into the mounting through slot; and the control board is electrically connected to and controls the laser lamps with different colors.
  3. 3 . The projection lamp with a replaceable grating sheet according to claim 1 , wherein an inner cover is arranged in the housing, and the laser module is fixed in the inner cover; and a light through hole is arranged in a front side surface of the inner cover, the magnetic base is located in front of the inner cover, the light through hole of the magnetic base and the light through hole of the inner cover are coaxial, and an emission port of the laser module is aligned with the light through hole of the inner cover.
  4. 4 . The projection lamp with a replaceable grating sheet according to claim 1 , wherein the magnet is fixed to a front side surface of the magnetic base, and a magnetic cover and a magnetic bottom are respectively fixed to the front side surface and a back side surface of the magnetic base; the magnetic cover and the magnetic bottom are each provided with light through holes, and the light through holes of the magnetic cover and the magnetic bottom are coaxial with the light through hole of the magnetic base; and the magnetic cover covers the magnet.
  5. 5 . The projection lamp with a replaceable grating sheet according to claim 1 , wherein a grating cover is embedded into the light through hole of the grating fixing base, a grating mounting groove is arranged on a back side surface of the grating cover, and the grating is embedded into the grating mounting groove; and the grating cover is provided with a light through hole corresponding to the grating.
  6. 6 . The projection lamp with a replaceable grating sheet according to claim 1 , wherein the magnetic base and the driven gear are integrally formed.
  7. 7 . The projection lamp with a replaceable grating sheet according to claim 1 , wherein a plurality of magnet mounting grooves are uniformly formed in a front side surface of the magnetic base along a circumferential direction, and the magnet is embedded into each of the magnet mounting grooves.
  8. 8 . The projection lamp with a replaceable grating sheet according to claim 1 , wherein a tray bracket is further arranged in the housing, the tray bracket is fixed in the housing, a tray slot is arranged on the tray bracket, the tray is inserted into the tray slot and is slidable in and out the tray slot through an opening of the tray slot, and a direction in which the tray is slidable in and out the tray slot is the same as a direction in which the tray is slidable in and out the tray access port.
  9. 9 . The projection lamp with a replaceable grating sheet according to claim 1 , wherein a lens is further arranged in the housing, and the lens is located in front of the grating module; and the lens is fixed to a front side surface of an inner cap, the inner cap is fixed in the housing, and the inner cap is provided with a light emission hole corresponding to the grating.
  10. 10 . The projection lamp with a replaceable grating sheet according to claim 1 , wherein a cooling fan is arranged on a rear side in the housing, and a heat dissipation hole is correspondingly arranged on a back side surface of the housing.

Description

TECHNICAL FIELD The present disclosure relates to the technical field of projection lamps, and in particular to, a projection lamp with a replaceable grating sheet. BACKGROUND At present, projection lamps are widely applied to the fields of illumination, decoration, and the like. In conventional projection lamps, gratings for creating projected pattern effects are fixed in the housings of the projection lamps. If it is needed to replace the gratings, tedious processes of disassembling, replacing, and re-assembling the projection lamps are required, so that it is hard to flexibly change the projection effects of the projection lamps. SUMMARY Aiming at shortcomings in the prior art, the present disclosure provides a projection lamp with a replaceable grating sheet, where the grating may be conveniently replaced to flexibly change the projection effect of the projection lamp. In order to achieve the above objective, the present disclosure adopts the following technical solutions: A projection lamp with a replaceable grating sheet includes a housing, a laser module, a grating module, and a control board, where the laser module, the grating module, and the control board are arranged in the housing, and the grating module is arranged in front of the laser module; andthe grating module includes a motor, a gear set, a magnetic base, a magnet, an iron sheet, an iron sheet fixing base, a tray, a grating, and a grating fixing base, where the gear set includes a driving gear and a driven gear meshing with each other, the driving gear is coaxially fixed to an output shaft of the motor, and the driven gear is coaxially fixed to the magnetic base; the magnet is fixed to the magnetic base, the iron sheet is fixed to the iron sheet fixing base, and the iron sheet and the magnet adsorb with each other magnetically; the grating is detachably fixed to the grating fixing base; the grating fixing base and the iron sheet fixing base are fixedly connected and mounted on an inner ring of the tray, and are axially rotatable in the inner ring of the tray; the housing is provided with a tray access port, a part of the tray stretches out from the tray access port to an outer side of the housing, and the tray is slidable in and out the housing via the tray access port; the magnetic base, the iron sheet, the iron sheet fixing base, and the grating fixing base are each provided with light through holes corresponding to the laser module, and the grating corresponds to the light through hole of the grating fixing base; an emission aperture is arranged on a front side surface of the housing and corresponds to the grating; and the control board is electrically connected to and controls the motor and the laser module. Further, the laser module includes multiple laser lamps with different colors and a module bracket, a mounting through slot is arranged in an inner cavity of the module bracket, and the multiple laser lamps with different colors are inserted into the mounting through slot; and the control board is electrically connected to and controls the laser lamps with different colors. Further, an inner cover is arranged in the housing, and the laser module is fixed in the inner cover; and a light through hole is arranged on a front side surface of the inner cover, the magnetic base is located in front of the inner cover, the light through hole of the magnetic base and the light through hole of the inner cover are coaxial, and an emission port of the laser module is aligned with the light through hole of the inner cover. Further, the magnet is fixed to a front side surface of the magnetic base, and a magnetic cover and a magnetic bottom are respectively fixed to the front side surface and a back side surface of the magnetic base; the magnetic cover and the magnetic bottom are each provided with light through holes, and the light through holes of the magnetic cover and the magnetic bottom are coaxial with the light through hole of the magnetic base; and the magnetic cover covers the magnet. Further, a grating cover is embedded into the light through hole of the grating fixing base, a grating mounting groove is arranged on a back side surface of the grating cover, and the grating is embedded into the grating mounting groove; and the grating cover is provided with a light through hole corresponding to the grating. Further, the magnetic base and the driven gear are integrally formed. Further, multiple magnet mounting grooves are uniformly formed in the front side surface of the magnetic base along a circumferential direction, and the magnet is embedded into each of the magnet mounting grooves. Further, a tray bracket is further arranged in the housing, the tray bracket is fixed in the housing, a tray slot is arranged on the tray bracket, the tray is inserted into the tray slot and is slidable in and out the tray slot through an opening of the tray slot, and a direction in which the tray is slidable in and out the tray slot is the same as a direc