Method and device for calibrating laser in projection lamp

Abstract

The invention discloses a calibration method and device for a laser in a projection lamp, and solves the problem of poor calibration accuracy caused by laser position calibration through a single laser and a laser receiver. The calibration device comprises the projection lamp, the projection lamp comprises a base box, and a rotating frame is rotatably mounted at the top end of the base box; a machine body is rotatably mounted on the inner side of the rotating frame, a bottom gear is mounted on a bottom rotating shaft of the rotating frame, a driving gear is in meshed connection with one side of the bottom gear, the driving gear is fixedly connected with an output shaft of a rotating motor, the rotating motor is fixedly mounted in the base box, and a projector is mounted in the machine body; a laser emitting assembly is installed at the top end of the machine body. In the working process, light splitting is carried out through the middle light splitting hole and the four side light splitting holes in the light splitting cylinder, five laser beams are emitted to the middle laser receiver and the four end laser receivers correspondingly, and therefore calibration can be conveniently carried out.

Description

Technical Field

[0001] The present invention belongs to the technical field of projection lamps, and in particular relates to a calibration method and device for a laser in a projection lamp. Background Art

[0002] A projector lamp uses the principles of optical projection to project images or text. It consists of a light source and an optical system. Projectors typically use high-brightness light sources, such as LEDs (light-emitting diodes) or halogen lamps. LEDs offer advantages such as energy efficiency, long life, and rich colors, while halogen lamps offer high color rendering and luminous flux. Light from the light source is processed by the optical system, which includes components such as lenses and reflectors, to illuminate the image or text to be projected. The lens primarily focuses light, converging the divergent light from the light source into parallel beams or projecting it at a specific angle. The reflector redirects the light, improving its efficiency. A pattern sheet or slide (carrying the image, text, or other information to be projected) is placed in the optical path. Light from the light source passes through the pattern sheet and is magnified and focused by the lens, projecting the image or text clearly onto the target surface. Calibration is required during use, typically using a laser and a laser receiver. The laser receiver receives the laser light, which then calibrates the projector lamp. However, this has the following drawbacks: The laser receiver is not easy to install at the calibration position, and the laser position calibration is performed using a single laser and laser receiver, resulting in poor calibration accuracy. Summary of the Invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a method and device for calibrating the laser in a projection lamp, which effectively solves the problem of poor calibration accuracy when laser position calibration is performed using a single laser and a laser receiver.

[0004] To achieve the above object, the present invention provides the following technical solution: a method for calibrating a laser in a projection lamp, the calibration method being as follows: S1. Calibration equipment installation: Install the calibration equipment on the wall where projection is required; S2. Laser position adjustment: adjust the laser position in the projection lamp to the center axis of the projection lamp; S3. Laser calibration: Turn on the laser, the laser emits laser light, and the light is split by the laser splitter unit. Adjust the projection lamp so that the five split lasers are respectively irradiated on the five laser receivers on the calibration device to complete the calibration.

[0005] A device for calibrating a laser in a projection lamp comprises a projection lamp, wherein the projection lamp comprises a base box, a rotating frame is rotatably mounted on the top of the base box, a body is rotatably mounted inside the rotating frame, a bottom gear is mounted on the bottom rotating shaft of the rotating frame, a driving gear is meshedly connected to one side of the bottom gear, the driving gear is fixedly connected to the output shaft of a rotating motor, the rotating motor is fixedly mounted inside the base box, a projector is mounted inside the body, and a laser emission component is mounted on the top of the body.

[0006] Preferably, the laser emission assembly includes a top box fixedly mounted on the top of the body, the top box is connected to the inner cavity of the body, a longitudinal slide groove is provided on the inner wall of the top box, a sliding plate is fixedly mounted on the top of the laser emitter, the sliding plate is slidably connected to the longitudinal slide groove, a screw is rotatably mounted inside the longitudinal slide groove, the screw is threadedly connected to the sliding plate, the top of the screw is fixedly connected to the output shaft of the drive motor, the drive motor is fixedly mounted on the top of the top box, and the spectroscopic unit is arranged on the side of the top box close to the projection output end of the body.

[0007] Preferably, the spectroscopic unit includes a spectroscopic cylinder installed outside the laser emitting end of the laser emitter, a central spectroscopic hole is opened in the middle of one end of the spectroscopic cylinder, and four side spectroscopic holes are opened at one end of the spectroscopic cylinder, and the side spectroscopic holes are arranged at equal angles outside the central spectroscopic hole.

[0008] Preferably, the calibration device includes a mounting block, a calibration frame is provided on the front of the mounting block, a back suction cup is installed on the back of the mounting block, the back suction cup is used to install the mounting block on the wall, and a negative pressure drive component is installed inside the mounting block.

[0009] Preferably, the calibration frame includes a middle plate arranged on the front of the mounting block, four side arms are installed at equal angles on the outer side of the middle plate, a middle laser receiver is installed at the center of the front of the middle plate, a slot is provided on the front of the side arm, one end of the slot passes through to a position on the middle plate close to the middle laser receiver, a reflector is installed at one end of the slot close to the middle laser receiver, the inclination angle of the reflector is forty-five degrees, an end laser receiver is installed at the other end of the slot, a slot is installed on the inner wall of the slot close to the mounting block, the color of the slot is green, the light emitted by the laser emitter is red, a counterweight is installed at the end of the lower side arm, a limit rotation block is coaxially installed on the back of the middle plate, a limit rotation groove is provided on the mounting block, and the limit rotation block is rotatably installed on the inner side of the limit rotation groove.

[0010] Preferably, the negative pressure drive assembly includes an internal cavity opened on the inner side of the mounting block, a piston plate is movably installed inside the internal cavity, the piston plate is located between the back suction cup and the limit rotation groove, a movable block is provided below the piston plate, a return spring is installed on the top of the movable block, one end of the return spring is fixedly connected to the inner bottom wall of the internal cavity, longitudinal connecting rods are symmetrically installed between the piston plate and the movable block, a longitudinal pull rod is fixedly installed on the bottom end of the movable block, and the bottom end of the longitudinal pull rod extends to the bottom of the mounting block, a clamping and fixing assembly is provided between the piston plate and the limit rotation groove, and an auxiliary fixing assembly is provided between the movable block and the mounting block.

[0011] Preferably, the clamping and fixing assembly includes a connecting groove opened on the side of the limiting rotating groove close to the internal cavity, a transverse tube is fixedly installed inside the internal cavity, one end of the transverse tube is connected to the connecting groove, a top groove is opened on the top of the transverse tube, a pressing block is movably installed inside the transverse tube, a clamping suction cup is provided inside the connecting groove, the end of the clamping suction cup contacts the end of the limiting rotating block, a clamping spring is installed between the clamping block and the clamping suction cup, a connecting rod is hingedly installed on the top of the pressing block, and the top of the connecting rod is hinged to the bottom wall of the piston plate.

[0012] Preferably, the auxiliary fixing assembly includes a card slot opened on the side of the movable block close to the back suction cup, a movable slot is opened on the inner wall of the internal cavity close to the back suction cup, the movable slot is located below the movable block, a card block is movably installed inside the movable slot, a pressure inclined surface is opened at the end of the card block, the length of the card block located inside the internal cavity is less than the depth of the card slot, an external plate is provided on the side of the mounting block close to the back suction cup, a transverse connecting rod is symmetrically installed between the external plate and the card block, a connecting spring is installed on the side of the external plate close to the mounting block, one end of the connecting spring is fixedly connected to the outer wall of the mounting block, and a transverse pull rod is fixedly installed on the side of the external plate away from the mounting block.

[0013] Preferably, a first through groove is provided in the middle of the pressing block, a second through groove is provided at the end of the transverse tube away from the communicating groove, a communicating tube is fixedly installed on the side of the pressing suction cup close to the second through groove, the end of the communicating tube passes through the first through groove to the inside of the second through groove, the communicating tube is connected with the pressing suction cup, a piston block is movably installed inside the communicating tube, a top pull rod is installed at the end of the piston block away from the pressing suction cup, a top connecting rod is fixedly installed on the end of the top pull rod, and the bottom end of the top connecting rod is fixedly connected to the external plate.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1) During operation, a central laser receiver is provided in the middle of the central plate, an end laser receiver is provided at one end of the four slots away from the central laser receiver, and a reflector is provided at one end of the slots close to the central laser receiver. The central light splitting hole and the four side light splitting holes on the beam splitting cylinder split the light, so that the five laser beams are respectively projected onto the central laser receiver and the four end laser receivers, thereby facilitating calibration; 2) During operation, the laser is emitted from the side beam splitter hole to the reflector, and refracted to the laser receiver at the end for calibration. A reflective strip is fixedly installed on the inner wall of the back of the tank. The color of the reflective strip is green, and the color of the laser is set to red. When the laser is parallel to the reflective strip, it appears yellow to the human eye, making it easier for the staff to calibrate. 3) During operation, the middle plate is rotated and mounted on the mounting block. A counterweight is installed at the bottom of the lowest side arm to keep the two side arms horizontal and vertical for easy calibration. A back suction cup is installed on the back of the mounting block to facilitate the fixing of the middle plate on the projection surface for easy calibration. 4) During operation, when the piston plate moves downward, negative pressure is generated inside the back suction cup to complete the fixation. At the same time, the connecting rod pushes the pressing block toward the side of the pressing suction cup, and the surface of the pressing suction cup contacts the surface of the limit rotating block, compressing the pressing spring. The limit rotating block is pressed by the pressing suction cup, thereby fixing the middle plate, improving the clamping fixation of the middle plate and improving the calibration stability. 5) During operation, when the piston plate moves downward to the corresponding position of the card slot and the card block, the card block is inserted into the card slot to fix the piston plate, which is convenient for fixing the mounting block. After the card block is inserted into the card slot, it moves toward the side away from the middle plate relative to its original state, thereby driving the piston block to move toward the side away from the clamping suction cup, so that the clamping suction cup and the limit rotating block are fixed by negative pressure adsorption, thereby improving the fixation of the middle plate and improving the calibration stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0016] In the attached figure: Figure 1 A schematic diagram of a method and device structure for calibrating a laser in a projection lamp according to the present invention; Figure 2 It is a schematic diagram of the body structure of the present invention; Figure 3 This is a schematic diagram of the structure of the laser emission component of the present invention; Figure 4 It is a structural schematic diagram of the spectrometer of the present invention; Figure 5 This is a schematic diagram of the calibration frame structure of the present invention; Figure 6 This is a schematic diagram of the back structure of the middle plate of the present invention; Figure 7 This is a schematic structural diagram of the negative pressure drive assembly of the present invention; Figure 8 For the present invention Figure 7 A in the middle is an enlarged structural diagram; Figure 9 For the present invention Figure 7 The enlarged structural diagram at B in the middle; Figure 10 It is a schematic structural diagram of the compression suction cup of the present invention.

[0017] In the figure: 1. base box; 2. rotating frame; 3. machine body; 4. bottom gear; 5. driving gear; 6. rotating motor; 7. laser emission assembly; 701. top box; 702. longitudinal slide; 703. sliding plate; 704. laser emitter; 705. screw; 706. driving motor; 707. spectrometer; 708. side spectrometer hole; 709. middle spectrometer hole; 8. mounting block; 9. calibration frame; 901. middle plate; 902. side arm; 903. middle laser receiver; 904. slot; 905. reflector; 906. end laser receiver; 907. reflective strip; 908. counterweight; 909. limit rotating block; 910. limit rotating slot; 10. back suction cup; 11. negative pressure driving assembly; 1101. internal cavity; 1102. Piston plate; 1103. Movable block; 1104. Longitudinal connecting rod; 1105. Longitudinal pull rod; 12. Compression and fixing assembly; 1201. Connecting groove; 1202. Transverse tube; 1203. Top groove; 1204. Pressing block; 1205. Compression suction cup; 1206. Compression spring; 1207. Connecting rod; 13. Auxiliary fixing assembly; 1301. Slot; 1302. Movable groove; 1303. Block; 1304. Pressure inclined surface; 1305. External plate; 1306. Transverse connecting rod; 1307. Connecting spring; 1308. Transverse pull rod; 1309. Top connecting rod; 1310. First through groove; 1311. Second through groove; 1312. Connecting tube; 1313. Piston block; 1314. Top pull rod. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] Depend on Figure 1-10 The present invention relates to a calibration device for a laser in a projection lamp, wherein the projection lamp comprises a base box 1, a rotating frame 2 is rotatably mounted on the top of the base box 1, a body 3 is rotatably mounted on the inner side of the rotating frame 2, a bottom gear 4 is mounted on the bottom rotating shaft of the rotating frame 2, a driving gear 5 is meshedly connected to one side of the bottom gear 4, the driving gear 5 is fixedly connected to the output shaft of a rotating motor 6, the rotating motor 6 is fixedly mounted inside the base box 1, a projector is mounted inside the body 3, and a laser emission component 7 is mounted on the top of the body 3.

[0020] The laser emission assembly 7 includes a top box 701 fixedly mounted on the top of the body 3. The top box 701 is connected to the inner cavity of the body 3. A longitudinal slide 702 is provided on the inner wall of the top box 701. A sliding plate 703 is fixedly mounted on the top of the laser emitter 704. The sliding plate 703 is slidably connected to the longitudinal slide 702. A screw 705 is rotatably mounted inside the longitudinal slide 702. The screw 705 is threadedly connected to the sliding plate 703. The top of the screw 705 is connected to the drive motor 70 6 is fixedly connected, the driving motor 706 is fixedly installed on the top of the top box 701, and the spectroscopic unit is arranged on the side of the top box 701 close to the projection output end of the body 3. The spectroscopic unit includes a spectroscopic cylinder 707 installed on the outside of the laser emitting end of the laser emitter 704, and a central spectroscopic hole 709 is opened in the middle of one end of the spectroscopic cylinder 707. Four side spectroscopic holes 708 are opened at one end of the spectroscopic cylinder 707, and the side spectroscopic holes 708 are arranged at equal angles on the outside of the central spectroscopic hole 709.

[0021] The calibration device includes a mounting block 8, a calibration frame 9 is provided on the front of the mounting block 8, a back suction cup 10 is installed on the back of the mounting block 8, and the back suction cup 10 is used to install the mounting block 8 on the wall. A negative pressure drive component 11 is installed inside the mounting block 8. The calibration frame 9 includes a middle plate 901 provided on the front of the mounting block 8, four side arms 902 are installed at equal angles on the outside of the middle plate 901, a middle laser receiver 903 is installed at the center of the front of the middle plate 901, and a slot 904 is opened on the front of the side arm 902. One end of the slot 904 passes through the middle plate 901 near the middle laser receiver 903 The end of the slot body 904 close to the middle laser receiver 903 is equipped with a reflector 905, the inclination angle of the reflector 905 is forty-five degrees, the other end of the slot body 904 is equipped with an end laser receiver 906, the middle of the middle plate 901 is equipped with a middle laser receiver 903, the end of the four slot bodies 904 away from the middle laser receiver 903 is equipped with an end laser receiver 906, the end of the slot body 904 close to the middle laser receiver 903 is equipped with a reflector 905, the middle light splitting hole 709 and the four side light splitting holes 708 on the light splitting cylinder 707 split the light, so that the five lasers are emitted respectively. To the middle laser receiver 903 and the four end laser receivers 906, so as to facilitate calibration, a slot body 904 is installed on the inner wall of the slot body 904 close to the mounting block 8. The color of the slot body 904 is green, and the light emitted by the laser emitter 704 is red. A counterweight block 908 is installed at the end of the lower side arm 902. The middle plate 901 is rotatably mounted on the mounting block 8. A counterweight block 908 is installed at the bottom end of the lowest side arm 902, so that the two side arms 902 remain horizontal and the two side arms 902 remain vertical, which is convenient for calibration. A back suction cup 10 is installed on the back of the mounting block 8 to facilitate the middle plate 9 01 is fixedly installed on the projection surface for easy calibration. A limit rotation block 909 is coaxially installed on the back of the middle plate 901. A limit rotation groove 910 is provided on the mounting block 8. The limit rotation block 909 is rotatably installed on the inner side of the limit rotation groove 910. The laser is emitted from the side spectroscopic hole 708 to the reflector 905, and the laser is refracted to the end laser receiver 906 for calibration. A reflective strip 907 is fixedly installed on the inner wall of the back of the groove body 904. The color of the reflective strip 907 is green, and the color of the laser is set to red. When the laser is parallel to the reflective strip 907, it is emitted into the human eye as yellow, which is convenient for the staff to calibrate.

[0022] The negative pressure drive assembly 11 includes an internal cavity 1101 opened on the inner side of the mounting block 8, a piston plate 1102 is movably installed inside the internal cavity 1101, the piston plate 1102 is located between the back suction cup 10 and the limit rotation groove 910, a movable block 1103 is provided below the piston plate 1102, a return spring is installed on the top of the movable block 1103, one end of the return spring is fixedly connected to the inner bottom wall of the internal cavity 1101, and a longitudinal connecting rod 1104 is symmetrically installed between the piston plate 1102 and the movable block 1103 The bottom end of the movable block 1103 is fixedly installed with a longitudinal pull rod 1105, and the bottom end of the longitudinal pull rod 1105 passes through the bottom of the mounting block 8. A pressing and fixing component 12 is provided between the piston plate 1102 and the limit rotation groove 910, and an auxiliary fixing component 13 is provided between the movable block 1103 and the mounting block 8. The pressing and fixing component 12 includes a connecting groove 1201 opened on the side of the limit rotation groove 910 close to the internal cavity 1101. A transverse tube 1202 is fixedly installed inside the internal cavity 1101. The transverse tube 120 One end of 2 is connected to the connecting groove 1201, and a top groove 1203 is provided at the top of the transverse tube 1202. A pressing block 1204 is movably installed inside the transverse tube 1202. A pressing sucker 1205 is provided inside the connecting groove 1201. The end of the pressing sucker 1205 contacts the end of the limit rotating block 909. A pressing spring 1206 is installed between the pressing block 1204 and the pressing sucker 1205. A connecting rod 1207 is hingedly installed at the top of the pressing block 1204. The top of the connecting rod 1207 is connected to the piston. The bottom wall of plate 1102 is hinged. When the piston plate 1102 moves downward, negative pressure is generated inside the back suction cup 10 to complete the fixation. At the same time, the pressing block 1204 is pushed toward the side of the clamping suction cup 1205 through the connecting rod 1207. The surface of the clamping suction cup 1205 contacts the surface of the limit turn block 909, so that the clamping spring 1206 is compressed, and the limit turn block 909 is pressed by the clamping suction cup 1205, thereby fixing the middle plate 901, improving the clamping fixation of the middle plate 901, and improving the calibration stability.

[0023] The auxiliary fixing component 13 includes a card slot 1301 opened on the side of the movable block 1103 close to the back suction cup 10, a movable groove 1302 is opened on the inner wall of the inner cavity 1101 close to the back suction cup 10, and the movable groove 1302 is located below the movable block 1103. A card block 1303 is movably installed inside the movable groove 1302, and a pressure inclined surface 1304 is opened at the end of the card block 1303. The length of the part of the card block 1303 located inside the internal cavity 1101 is less than the depth of the card slot 1301. The mounting block 8 is set on the side close to the back suction cup 10. There is an external plate 1305, and a transverse connecting rod 1306 is symmetrically installed between the external plate 1305 and the clamping block 1303. A connecting spring 1307 is installed on the side of the external plate 1305 close to the mounting block 8. One end of the connecting spring 1307 is fixedly connected to the outer wall of the mounting block 8. A transverse pull rod 1308 is fixedly installed on the side of the external plate 1305 away from the mounting block 8. A first through groove 1310 is opened in the middle of the pressing block 1204, and a second through groove 1311 is opened at the end of the transverse tube 1202 away from the connecting groove 1201. The suction cup 1205 is pressed against A connecting pipe 1312 is fixedly installed on one side near the second through slot 1311, and the end of the connecting pipe 1312 passes through the first through slot 1310 to the inside of the second through slot 1311. The connecting pipe 1312 is connected to the pressing suction cup 1205, and a piston block 1313 is movably installed inside the connecting pipe 1312. A top pull rod 1314 is installed on the end of the piston block 1313 away from the pressing suction cup 1205. A top connecting rod 1309 is fixedly installed on the end of the top pull rod 1314. The bottom end of the top connecting rod 1309 is fixedly connected to the outer plate 1305, and is movably connected. When the plug plate 1102 moves downward to the corresponding position of the slot 1301 and the block 1303, the block 1303 is inserted into the slot 1301 to fix the piston plate 1102, which is convenient for fixing the mounting block 8. After the block 1303 is inserted into the slot 1301, it moves toward the side away from the middle plate 901 relative to its original state, thereby driving the piston block 1313 to move toward the side away from the clamping suction cup 1205, so that the clamping suction cup 1205 and the limit rotating block 909 are fixed by negative pressure adsorption, thereby improving the fixation of the middle plate 901 and improving the calibration stability.

[0024] Working principle: When working, first install the calibration device at the center of the position where projection is required. During installation, the end surface of the back suction cup 10 is pressed against the wall. Since the middle plate 901 is rotated and installed inside the limit rotation groove 910 on the mounting block 8 through the limit rotation block 909, and the bottom end of the lowest side arm 902 is installed with a counterweight block 908, the two side arms 902 are kept horizontal and vertical, which is convenient for calibration. Then, the piston plate 1102 is pulled downward by the longitudinal pull rod 1105, so that negative pressure suction is generated between the back suction cup 10 and the wall, thereby adsorbing and fixing the mounting block 8 to the wall. When the piston plate 1102 moves downward, the connecting rod 1207 pushes the pressing block 1204 toward the side of the pressing suction cup 1205, so that the pressing spring 1206 is compressed, thereby pressing the pressing suction cup 1205 and the limit rotating block 909, and pressing and fixing the middle plate 901, thereby improving the calibration stability. When the movable block 1103 moves downward, pressure is generated on the pressure inclined surface 1304 on the clamping block 1303, pushing the clamping block 1303 into the movable groove 1302. When the movable block 1103 moves to the position corresponding to the clamping groove 1301 and the clamping block 1303, the clamping block 1303 moves back and is clamped into the clamping groove 1301 under the elastic force of the connecting spring 1307, fixing the position of the piston plate 1102. Since the clamping block 1303 is originally located in the internal cavity 110 The length of the inner portion of the clamping groove 1301 is greater than the depth of the clamping groove 1301, so that after the clamping block 1303 is inserted into the clamping groove 1301, it moves a certain distance toward the movable groove 1302 relative to its original position. As a result, the top connecting rod 1309 pulls the piston block 1313 to move a certain distance away from the pressing suction cup 1205, so that negative pressure suction is generated between the pressing suction cup 1205 and the limiting rotating block 909, thereby further fixing the middle plate 901 and improving the calibration stability. Then, the drive motor 706 is turned on, so that the screw 705 rotates and drives the laser emitter 704 to move downward to the coaxial position inside the body 3. The laser emitter 704 is turned on so that its emitting end emits red laser light outward. The laser light is split after passing through the central light-split hole 709 and the four side light-split holes 708 to emit five laser lines. The position and direction of the body 3 are adjusted until the middle laser line is contacted by the central laser receiver 903, and the other four laser lines are emitted onto the reflector 905, refracted by the reflector 905 and received by the end laser receiver 906, thereby completing the calibration. When the position is calibrated, the laser light refracted by the reflector 905 is parallel to the front of the reflective strip 907, and the color of the reflective strip 907 is green, so that the human eye sees yellow light. When the person sees the four yellow lights and the central laser receiver 903 and the four end laser receivers 906 send out reception signals, it means that the calibration is successful, and the color of the laser light makes it convenient for the user to calibrate.

[0025] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0026] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A method for calibrating a laser in a projection lamp, characterized in that: The calibration method is as follows: S1. Calibration equipment installation: Install the calibration equipment on the wall where projection is required; S2. Laser position adjustment: adjust the laser position in the projection lamp to the center axis of the projection lamp; S3. Laser calibration: Turn on the laser, the laser emits laser light, and the light is split by the laser splitter unit. Adjust the projection lamp so that the five split lasers are respectively irradiated on the five laser receivers on the calibration device to complete the calibration.

2. The laser calibration device for a projection lamp according to claim 1, characterized in that: The projection lamp comprises a base box (1), a rotating frame (2) is rotatably mounted on the top of the base box (1), a body (3) is rotatably mounted on the inner side of the rotating frame (2), a bottom gear (4) is mounted on the bottom rotating shaft of the rotating frame (2), a driving gear (5) is meshedly connected to one side of the bottom gear (4), the driving gear (5) is fixedly connected to the output shaft of a rotating motor (6), the rotating motor (6) is fixedly mounted inside the base box (1), a projector is mounted inside the body (3), and a laser emission component (7) is mounted on the top of the body (3).

3. The laser calibration device for a projection lamp according to claim 2, wherein: The laser emission assembly (7) comprises a top box (701) fixedly mounted on the top of the body (3), the top box (701) being connected to the inner cavity of the body (3), a longitudinal slide groove (702) being provided on the inner wall of the top box (701), a sliding plate (703) being fixedly mounted on the top of the laser emitter (704), the sliding plate (703) being slidably connected to the longitudinal slide groove (702), a screw rod (705) being rotatably mounted inside the longitudinal slide groove (702), the screw rod (705) being threadedly connected to the sliding plate (703), the top end of the screw rod (705) being fixedly connected to the output shaft of the drive motor (706), the drive motor (706) being fixedly mounted on the top of the top box (701), and a light splitting unit being arranged on a side of the top box (701) close to the projection output end of the body (3).

4. The laser calibration device for a projection lamp according to claim 3, characterized in that: The light splitting unit comprises a light splitting cylinder (707) installed outside the laser emitting end of the laser emitter (704), a middle light splitting hole (709) is opened in the middle of one end of the light splitting cylinder (707), and four side light splitting holes (708) are opened at one end of the light splitting cylinder (707), and the side light splitting holes (708) are arranged at equal angles outside the middle light splitting hole (709).

5. The laser calibration device for a projection lamp according to claim 1, wherein: The calibration device comprises a mounting block (8), a calibration frame (9) is provided on the front of the mounting block (8), a back suction cup (10) is installed on the back of the mounting block (8), and the back suction cup (10) is used to mount the mounting block (8) on a wall. A negative pressure drive assembly (11) is installed inside the mounting block (8).

6. The laser calibration device for a projection lamp according to claim 5, characterized in that: The calibration frame (9) includes a middle plate (901) arranged on the front of the mounting block (8), four side arms (902) are installed at equal angles on the outer side of the middle plate (901), a middle laser receiver (903) is installed at the center of the front of the middle plate (901), a groove (904) is opened on the front of the side arm (902), one end of the groove (904) passes through the position of the middle plate (901) close to the middle laser receiver (903), and a reflector (905) is installed on the end of the groove (904) close to the middle laser receiver (903), and the reflector (905) is provided at the center of the front of the middle plate (901). The tilt angle is forty-five degrees. An end laser receiver (906) is installed at the other end of the trough body (904). The trough body (904) is installed on the inner wall of the trough body (904) close to the mounting block (8). The color of the trough body (904) is green, and the light emitted by the laser emitter (704) is red. A counterweight block (908) is installed at the end of the lower side arm (902). A limited rotation block (909) is coaxially installed on the back of the middle plate (901). A limited rotation groove (910) is opened on the mounting block (8), and the limited rotation block (909) is rotatably installed on the inner side of the limited rotation groove (910).

7. The laser calibration device for a projection lamp according to claim 6, characterized in that: The negative pressure drive assembly (11) includes an internal cavity (1101) opened on the inner side of the mounting block (8), a piston plate (1102) is movably installed inside the internal cavity (1101), the piston plate (1102) is located between the back suction cup (10) and the limit rotation groove (910), a movable block (1103) is provided below the piston plate (1102), a reset spring is installed on the top of the movable block (1103), one end of the reset spring is fixed to the inner bottom wall of the internal cavity (1101), and the piston plate (1102) is located between the back suction cup (10) and the limit rotation groove (910). A fixed connection is provided, and longitudinal connecting rods (1104) are symmetrically installed between the piston plate (1102) and the movable block (1103). A longitudinal pull rod (1105) is fixedly installed at the bottom end of the movable block (1103). The bottom end of the longitudinal pull rod (1105) passes through the bottom of the mounting block (8). A clamping fixing component (12) is provided between the piston plate (1102) and the limiting rotation groove (910), and an auxiliary fixing component (13) is provided between the movable block (1103) and the mounting block (8).

8. The laser calibration device for a projection lamp according to claim 7, characterized in that: The pressing and fixing assembly (12) includes a connecting groove (1201) provided on a side of the limiting rotating groove (910) close to the internal cavity (1101), a transverse tube (1202) is fixedly installed inside the internal cavity (1101), one end of the transverse tube (1202) is connected to the connecting groove (1201), a top groove (1203) is provided at the top end of the transverse tube (1202), and a pressing block (1203) is movably installed inside the transverse tube (1202). 1204), a pressing suction cup (1205) is provided inside the communicating groove (1201), the end of the pressing suction cup (1205) contacts the end of the limiting rotating block (909), a pressing spring (1206) is installed between the pressing block (1204) and the pressing suction cup (1205), and a connecting rod (1207) is hingedly installed at the top end of the pressing block (1204), and the top end of the connecting rod (1207) is hingedly connected to the bottom wall of the piston plate (1102).

9. The laser calibration device for a projection lamp according to claim 7, characterized in that: The auxiliary fixing component (13) includes a card slot (1301) provided on a side of the movable block (1103) close to the back suction cup (10), a movable slot (1302) is provided on an inner wall of the inner cavity (1101) close to the back suction cup (10), the movable slot (1302) is located below the movable block (1103), a card block (1303) is movably installed inside the movable slot (1302), a pressure-bearing inclined surface (1304) is provided at the end of the card block (1303), and the card block (1303) is located in the inner part of the inner cavity (1101). The length of the mounting block (1303) is smaller than the depth of the card slot (1301), an external plate (1305) is provided on the side of the mounting block (8) close to the back suction cup (10), a transverse connecting rod (1306) is symmetrically installed between the external plate (1305) and the card block (1303), a connecting spring (1307) is installed on the side of the external plate (1305) close to the mounting block (8), one end of the connecting spring (1307) is fixedly connected to the outer wall of the mounting block (8), and a transverse pull rod (1308) is fixedly installed on the side of the external plate (1305) away from the mounting block (8).

10. The laser calibration device for a projection lamp according to claim 9, characterized in that: A first through groove (1310) is provided in the middle of the pressing block (1204), a second through groove (1311) is provided at one end of the transverse tube (1202) away from the connecting groove (1201), a connecting tube (1312) is fixedly installed on the side of the pressing suction cup (1205) close to the second through groove (1311), the end of the connecting tube (1312) passes through the first through groove (1310) to the inside of the second through groove (1311), the connecting tube (1312) is connected to the pressing suction cup (1205), a piston block (1313) is movably installed inside the connecting tube (1312), a top pull rod (1314) is installed at one end of the piston block (1313) away from the pressing suction cup (1205), a top connecting rod (1309) is fixedly installed at the end of the top pull rod (1314), and the bottom end of the top connecting rod (1309) is fixedly connected to the external plate (1305).

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