A projection lamp module with interchangeable projection patterns

Abstract

This invention relates to, but is not limited to, the technical field of projection lamps, and discloses a projection lamp module with replaceable projection patterns. The module includes a lamp housing, a lens fixedly connected to the lamp housing, a lamp holder fixedly connected inside the lamp housing, a rotating ring rotatably connected to the lamp holder, a transmission belt rotatably connected to the rotating ring, and a motor fixedly connected inside the lamp housing. It also includes an installation unit, a fastening unit, and a fixing unit. This projection lamp module with replaceable projection patterns allows for pattern replacement by pulling a pull ring to expose an opening. The process is simple and convenient. During the pulling process, the hook blocks abut against the two sides of the opening, hooking the two semicircular rings (one and two) on either side of the opening into a fully open state, thus automating the opening and closing of the fastening components.

Description

Technical Field

[0001] This invention relates to, but is not limited to, the technical field of projection lamps, and particularly to a projection lamp module with interchangeable projection patterns. Background Technology

[0002] A projector is a device typically used to project images or videos onto walls, screens, or other flat surfaces. It can be used in various settings such as home entertainment, business presentations, and educational lectures. Traditional advertising projectors use circular projectors, which internally contain a rotating motor, a drive belt, a lamp holder, and a rotating ring. By opening the light box, a circular graphic can be placed on the rotating ring on the lamp holder, and then an elastic ring is used to fix the graphic on the rotating ring. The graphic rotates under the drive of the motor and drive belt.

[0003] However, replacing the graphic strips in traditional advertising projection lights is quite troublesome. It requires unscrewing the bolts to open the light box, and then removing the elastic rings and other parts before the old graphic strip can be replaced. This operation requires reaching into the light box, which not only obstructs the view and affects the operation, but also makes the operation more complicated and affects the replacement efficiency. Therefore, the above problems need to be improved. Summary of the Invention

[0004] In view of the cumbersome problem of changing pattern pieces in existing technologies, a projection lamp module with replaceable projection patterns is proposed.

[0005] One aspect of this application provides a projection lamp module with replaceable projection patterns, the purpose of which is to make pattern replacement more convenient and faster.

[0006] The technical solution of the present invention is as follows: a projection lamp module with replaceable projection patterns, including a lamp box, a lens disposed on the lamp box, a lamp holder disposed inside the lamp box, a rotating ring disposed on the lamp holder, a transmission belt disposed on the rotating ring, and a motor disposed inside the lamp box, and further including an installation unit, a fastening unit and a fixing unit.

[0007] The mounting unit is installed on the light box and is used to mount the pattern pieces;

[0008] The installation unit includes: a sliding component disposed on the light box for carrying pattern pieces; the sliding component includes an opening disposed on the light box, a slide rail disposed between the opening and the light box, a slide bar disposed on the slide rail, a connecting plate disposed between the slide bars, a pull ring disposed on the connecting plate, an arc-shaped block disposed on the slide bar, a mounting ring disposed on the arc-shaped block, an annular slide groove disposed on the mounting ring, and a mounting groove disposed on the mounting ring;

[0009] An abutting component, located on the mounting ring, is used to abut the pattern piece;

[0010] The docking component is located at the bottom of the mounting ring and can be connected and linked with the rotating ring.

[0011] The fastening unit is disposed on the slide bar and is used to fasten the pattern piece;

[0012] The fixing unit is installed on the light box and is used to limit the position of the slider.

[0013] Using the above technical solution, the pattern piece is placed in the mounting groove on the mounting ring. By pulling the ring, the slide bar can be moved freely along the slide rail. The mounting ring is rotatably connected to the arc block through the annular slide groove. When the connecting plate and the opening are closed, the mounting ring is directly above the rotating ring.

[0014] Furthermore, the abutting component includes a sliding groove disposed on the mounting ring, an abutting block disposed on the sliding groove, and an elastic element disposed on the abutting block.

[0015] Using the above technical solution, when placing the pattern piece, one side of the pattern piece can be abutted against the abutting block, and then the pattern piece can be pushed to squeeze the abutting block, so that the abutting block overcomes the elastic force of the elastic element and retracts into the sliding groove. Then the pattern piece is placed in the mounting groove, thus completing the installation of the pattern piece. The abutting block applies abutting pressure to the pattern piece, so that the pattern piece is fixed in the mounting groove.

[0016] Furthermore, the docking component includes a telescopic groove disposed on the rotating ring, a ball disposed on the telescopic groove, an elastic element two disposed between the telescopic groove and the ball, and a docking groove disposed at the bottom of the mounting ring.

[0017] Using the above technical solution, when the connecting plate and the opening are closed, the mating groove at the bottom of the mounting ring will be in contact with the ball bearing. Since the mounting ring is rotatably connected to the arc block, when the motor drives the rotating ring to rotate, the rotating ring will drive the mounting ring to rotate under the action of the ball bearing, thereby realizing the rotation of the pattern piece. When the pattern piece needs to be replaced, the mounting ring will be pulled out along with the slide bar by pulling the pull ring, and the mating groove at the bottom of the mounting ring will also be separated from the ball bearing under the action of the pulling force.

[0018] Furthermore, the fastening unit includes a fastening component disposed on the slide bar and a transmission component disposed on the slide bar.

[0019] Using the above technical solution, the transmission component opens the transmission fastening component when the connecting plate is pulled open.

[0020] Furthermore, the fastening component includes a side groove on the slide bar, a first sliding block on the side groove, a first semicircular ring on the first sliding block, a first opening on the first semicircular ring, a second sliding block on the side groove, a second semicircular ring on the second sliding block, a second opening on the second semicircular ring, and a third elastic member disposed between the first opening and the second opening.

[0021] Using the above technical solution, under the action of the elastic element three, the first semicircular ring and the second semicircular ring close to form an integral ring, and the pattern piece is fastened below the first and second semicircular rings, preventing the pattern piece from detaching from the mounting ring during operation.

[0022] Furthermore, the transmission component includes a top groove on the slide bar, a sliding plate on the top groove, a hook block on the sliding plate, a rotating column on the top groove, and a pull rope between the second sliding block and the sliding plate.

[0023] Using the above technical solution, when the pull ring is pulled to open the connecting plate, the hook block will abut against both sides of the opening and hook onto both sides of the opening. At this time, the sliding plate will stop moving forward. Then, if the pull ring is pulled again, since the sliding block one is fixedly connected to the sliding plate, the semicircular ring one will also stop moving forward. Since one end of the pull rope is fixedly connected to the sliding plate and the other end passes around the rotating column and is fixedly connected to the sliding block two, the semicircular ring two will be pulled away from the semicircular ring one. At this time, the semicircular ring one and the semicircular ring two are in a fully open state, and the pattern piece can be replaced. When the replacement is completed, the connecting plate can be pushed into the opening. At this time, under the action of the elastic element three, the semicircular ring one and the semicircular ring two will automatically close.

[0024] Furthermore, the fixing unit includes a movable groove disposed on the light box and a limiting component disposed within the movable groove.

[0025] Using the above technical solution, the limiting component is installed in the movable groove to fix the position of the slide bar.

[0026] Furthermore, the limiting component includes a movable plate disposed in the movable groove, a push block disposed on the movable plate, an elastic element four disposed between the movable plate and the movable groove, a limiting rod disposed at the bottom of the movable plate, a limiting groove one disposed on the slide bar, and a limiting groove two disposed on the connecting plate.

[0027] Using the above technical solution, when the connecting plate is pulled open to open the pattern piece, the limiting rod can be inserted into the limiting groove. Under the action of the elastic element four, the limiting rod will always be in contact with the limiting groove. At this time, the pattern piece can be replaced. After the replacement is completed, when the connecting plate and the opening are closed, the push block can be pulled to retract the limiting rod into the movable groove. Then the push block is released. At this time, under the action of the elastic element four, the push block will be inserted into the limiting groove two, and the position of the connecting plate will be fixed.

[0028] Another aspect of this application provides a method for using a projection lamp module with replaceable projection patterns, the purpose of which is to provide a simple and quick operation method for changing pattern pieces.

[0029] The technical solution of the present invention is: a method for using a projection lamp module with replaceable projection patterns, comprising the following steps,

[0030] First, pull the pull ring to pull the graphic piece out of the light box. At this time, the mating groove at the bottom of the mounting ring will disengage from the ball bearing on the rotating ring.

[0031] As the pattern piece is pulled out, the hook will abut against the two sides of the opening and hook onto the two sides of the opening, and the first and second semicircular rings will also open accordingly.

[0032] Then, the limiting rod is inserted into the limiting groove on the slide bar;

[0033] Then, use your fingers to push the old pattern piece out of the mounting groove from the bottom of the mounting ring, and then place the new pattern piece into the mounting groove. Under the action of the abutment block, the pattern piece is fixed in the mounting groove.

[0034] Then release the limit rod and close the connecting plate and the opening. At this time, the mounting ring will be directly above the rotating ring. When the motor starts, the rotating ring will rotate, and the balls on the rotating ring will automatically engage with the bottom groove of the mounting ring, thus driving the mounting ring to rotate.

[0035] Using the above technical solution, the pattern piece can be replaced by pulling the pull ring to push out the old pattern piece and then putting the new pattern piece back in its original position.

[0036] Furthermore, when the connecting plate and the opening are closed, the push block can be pushed to retract the limiting rod into the movable groove. Then, the push block can be released to allow the limiting rod and the limiting groove to be inserted into each other, thus completing the fixation of the position of the connecting plate and the opening.

[0037] Using the above technical solution, the limiting rod and the limiting groove are inserted into each other, which serves to fix the connecting plate.

[0038] The beneficial effects of this invention are:

[0039] 1. By pulling the pull ring, the old pattern piece is pushed out from the bottom, and then the new pattern piece abuts against the abutment block on one side. Then, push the pattern piece to squeeze the abutment block, so that the abutment block overcomes the elastic force of the elastic element and retracts into the sliding groove. Then, place the pattern piece in the installation groove to complete the installation of the pattern piece. The abutment block applies pressure to the pattern piece to fix it in the installation groove. Then, push the connecting plate to close it with the opening to complete the replacement of the pattern piece. The replacement process is simple and convenient.

[0040] 2. By pulling the pull ring to open the connecting plate, the hook block will abut against the two sides of the opening and hook the two sides of the opening. At this time, the first semicircular ring will also stop. Since one end of the pull rope is fixedly connected to the sliding plate and the other end passes around the rotating column and is fixedly connected to the second sliding block, the second semicircular ring will be pulled away from the first semicircular ring. Thus, the first and second semicircular rings are fully open, realizing the automation of the opening and closing of the fastening parts.

[0041] 3. When the connecting plate is pulled open, the position of the slide bar can be fixed by inserting the limiting rod into the limiting groove to prevent rebound. After the pattern piece is replaced, when the connecting plate and the opening are closed, the push block can be pulled to retract the limiting rod into the movable groove. Then the push block can be released. At this time, under the action of the elastic element four, the push block will be inserted into the limiting groove two, and the position of the connecting plate will be fixed. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the overall outer tube structure of the present invention;

[0043] Figure 2 This is a schematic diagram of the pull-out structure of the present invention;

[0044] Figure 3 This is a schematic diagram of the cross-sectional structure of the light box of the present invention;

[0045] Figure 4 This is a schematic diagram of the sliding component structure of the present invention;

[0046] Figure 5 This is a schematic diagram of the abutment component structure of the present invention;

[0047] Figure 6 This is a perspective view of the docking component structure of the present invention;

[0048] Figure 7 This is a schematic diagram of the fastening component structure of the present invention;

[0049] Figure 8 This is a schematic diagram of the transmission component structure of the present invention;

[0050] Figure 9 This is a schematic diagram of the structure at the fixing unit of the present invention;

[0051] Figure 10 This is a schematic diagram of the limiting component structure of the present invention.

[0052] In the picture:

[0053] 1. Lightbox; 2. Lens; 3. Lamp holder; 4. Rotating ring; 5. Transmission belt; 6. Motor; 7. Mounting unit; 71. Sliding component; 711. Opening; 712. Slide rail; 713. Slide bar; 714. Connecting plate; 715. Pull ring; 716. Arc block; 717. Mounting ring; 718. Annular slide groove; 719. Mounting groove; 72. Abutting component; 721. Sliding groove; 722. Abutting block; 723. Elastic element one; 73. Connecting component; 731. Telescopic groove; 732. Ball bearing; 733. Elastic element two; 734. Connecting groove; 8. Fastening unit 81. Fastening component; 811. Side groove; 812. Sliding block one; 813. Semicircular ring one; 814. Opening one; 815. Sliding block two; 816. Semicircular ring two; 817. Opening two; 818. Elastic element three; 82. Transmission component; 821. Top groove; 822. Sliding plate; 823. Hook block; 824. Rotating column; 825. Pull rope; 9. Fixing unit; 91. Movable groove; 92. Limiting component; 921. Movable plate; 922. Elastic element four; 923. Limiting rod; 924. Limiting groove one; 925. Limiting groove two; 926. Push block. Detailed Implementation

[0054] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0055] Example 1, referring to Figure 1-6 The first embodiment of the present invention provides a projection lamp module with replaceable projection patterns, including a lamp box 1, a lens 2 fixedly connected to the lamp box 1, a lamp holder 3 fixedly connected inside the lamp box 1, a rotating ring 4 rotatably connected to the lamp holder 3, a transmission belt 5 rotatably connected to the rotating ring 4, and a motor 6 fixedly connected inside the lamp box 1. It also includes an installation unit 7, a fastening unit 8, and a fixing unit 9. The installation unit 7 includes a sliding component 71, an abutting component 72, and a docking component 73. The fastening unit 8 can be a buckle, disposed on a slide bar 713, for fastening the pattern piece. The fixing unit 9 can be a limiting component, disposed on the lamp box 1, for limiting the position of the slide bar 713.

[0056] Reference Figure 1-4The sliding component 71 includes an opening 711 on the light box 1, two sets of slide rails 712 fixedly connected between the opening 711 and the light box 1, a slide bar 713 slidably connected to the slide rails 712, a connecting plate 714 fixedly connected between the slide bars 713, a pull ring 715 fixedly connected to the connecting plate 714, two sets of arc-shaped blocks 716 fixedly connected to the inner side of the slide bars 713, a mounting ring 717 rotatably connected between the two sets of arc-shaped blocks 716, an annular groove 718 on the mounting ring 717, the arc-shaped blocks 716 being slidably connected to the annular groove 718, and a mounting groove 719 on the mounting ring 717.

[0057] Specifically, the pattern piece is placed in the mounting groove 719 on the mounting ring 717. By pulling the pull ring 715, the slide bar 713 can be pulled freely along the slide rail 712. The mounting ring 717 is rotatably connected to the arc block 716 through the annular slide groove 718. When the connecting plate 714 and the opening 711 are closed, the mounting ring 717 is directly above the rotating ring 4.

[0058] Reference Figure 5 The abutting component 72 includes a sliding groove 721 formed on the mounting ring 717, an abutting block 722 slidably connected to the sliding groove 721, and an elastic member 723 fixedly connected between the abutting block 722 and the sliding groove 721.

[0059] Specifically, when placing the pattern piece, one side of the pattern piece can be abutted against the abutment block 722, and then the pattern piece can be pushed to press the abutment block 722, so that the abutment block 722 overcomes the elastic force of the elastic member 723 and retracts into the sliding groove 721. Then the pattern piece is placed in the mounting groove 719, thus completing the installation of the pattern piece. The abutment block 722 applies pressure to the pattern piece, so that the pattern piece is fixed in the mounting groove 719.

[0060] Reference Figure 6 The docking component 73 includes a telescopic groove 731 formed on the top of the rotating ring 4, balls 732 slidably connected to the telescopic groove 731, balls 732 arranged in a circumferential array on the rotating ring 4, an elastic element 733 installed between the telescopic groove 731 and the balls 732, the balls 732 protruding one-third of the telescopic groove 731 under the thrust of the elastic element 733, and docking grooves 734 formed on the bottom of the mounting ring 717, the number of docking grooves 734 being the same as the number of balls 732, and the balls 732 being able to abut against the docking grooves 734.

[0061] Specifically, when the connecting plate 714 is closed with the opening 711, the mating groove 734 at the bottom of the mounting ring 717 will be in contact with the ball 732. Since the mounting ring 717 is rotatably connected to the arc block 716, when the motor 6 drives the rotating ring 4 to rotate, the rotating ring 4 will drive the mounting ring 717 to rotate under the action of the ball 732, thereby realizing the rotation of the pattern piece. When the pattern piece needs to be replaced, the mounting ring 717 will be pulled out along with the slide bar 713 by pulling the pull ring 715. The mating groove 734 at the bottom of the mounting ring 717 will also be disengaged from the ball 732 under the action of the pulling force.

[0062] During normal use, the connecting plate 714 is closed with the opening 711, and the mating groove 734 at the bottom of the mounting ring 717 will mate with the ball 732. Since the mounting ring 717 is rotatably connected to the arc-shaped block 716, when the motor 6 drives the rotating ring 4 to rotate, the rotating ring 4 will drive the mounting ring 717 to rotate under the action of the ball 732, thus realizing the rotation of the pattern piece. When the pattern piece needs to be replaced, by pulling the pull ring 715, the mounting ring 717 will be pulled out along with the slide bar 713. The mating groove 734 at the bottom of the mounting ring 717 will then be engaged by the pulling force. The ball bearing 732 will be disengaged, and the old pattern piece can be pushed out from the bottom. The new pattern piece then abuts against the abutment block 722. The pattern piece is pushed to press against the abutment block 722, causing the abutment block 722 to overcome the elastic force of the elastic element 723 and retract into the sliding groove 721. The pattern piece is then placed in the mounting groove 719, thus completing the installation of the pattern piece. The abutment block 722 applies pressure to the pattern piece, fixing it in the mounting groove 719. Then, the connecting plate 714 is pushed to close the opening 711, thus completing the replacement of the pattern piece.

[0063] Example 2, refer to Figure 7 and 8 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the fastening unit 8 includes a fastening component 81 mounted on the slide bar 713 and a transmission component 82 mounted on the slide bar 713.

[0064] Reference Figure 7The fastening component 81 includes a side groove 811 formed inside the slide bar 713, a first slide block 812 slidably connected to the side groove 811, a first semicircular ring 813 fixedly connected between the first slide blocks 812, a first opening 814 formed on the first semicircular ring 813, a second slide block 815 slidably connected to the side groove 811, a second semicircular ring 816 fixedly connected between the second slide blocks 815, a second opening 817 formed on the second semicircular ring 816, and a third elastic element 818 installed between the first opening 814 and the second opening. The first semicircular ring 813 and the second semicircular ring 816 are symmetrically installed. Under the action of the third elastic element 818, the first semicircular ring 813 and the second semicircular ring 816 close to form an integral ring.

[0065] Specifically, under the action of the elastic element 3 818, the semicircular ring 1 813 and the semicircular ring 2 816 close to form an integral ring, and the pattern piece is fastened below the semicircular ring 1 813 and the semicircular ring 2 816, preventing the pattern piece from detaching from the mounting ring 717 during operation.

[0066] Reference Figure 2 and 8 The transmission component 82 includes a top groove 821 formed on the slide bar 713, a sliding plate 822 slidably connected to the top groove 821, the bottom of the sliding plate 822 being fixedly connected to the first sliding block 812, a hook block 823 fixedly connected to the sliding plate 822, a rotating column 824 rotatably connected to the top groove 821, and a pull rope 825 fixedly connected between the second sliding block 815 and the sliding plate 822.

[0067] Specifically, when the pull ring 715 is pulled to open the connecting plate 714, the hook block 823 will abut against the two sides of the opening 711 and hook the two sides of the opening 711. At this time, the sliding plate 822 will stop moving forward. Then, if the pull ring 715 is pulled further, since the sliding block 812 is fixedly connected to the sliding plate 822, the semi-circular ring 813 will also stop moving forward. Since one end of the pull rope 825 is fixedly connected to the sliding plate 822 and the other end passes around the rotating column 824 and is fixedly connected to the sliding block 815, the semi-circular ring 816 will be pulled away from the semi-circular ring 813. At this time, the semi-circular ring 813 and the semi-circular ring 816 are in a fully open state, and the pattern piece can be replaced. When the replacement is completed, the connecting plate 714 can be pushed into the opening 711. At this time, under the action of the elastic element 818, the semi-circular ring 813 and the semi-circular ring 816 will automatically close.

[0068] During use, when the pull ring 715 is pulled to open the connecting plate 714, the hook block 823 will abut against both sides of the opening 711, hooking both sides of the opening 711. At this time, the sliding plate 822 will stop moving forward. Then, if the pull ring 715 is pulled further, since the first sliding block 812 is fixedly connected to the sliding plate 822, the first semicircular ring 813 will also stop moving forward. Since one end of the pull rope 825 is fixedly connected to the sliding plate 822, and the other end passes around the rotating column 824 and is fixedly connected to the second sliding block 815, the second semicircular ring 816 will move away from the semicircular ring 813. When ring 1 813 is pulled, semicircular ring 1 813 and semicircular ring 2 816 are fully open, allowing the pattern piece to be replaced. Once the replacement is complete, the connecting plate 714 can be pushed into the opening 711. At this time, under the action of elastic element 3 818, semicircular ring 1 813 and semicircular ring 2 816 will automatically close. The closed semicircular ring 1 813 and semicircular ring 2 816 form a complete ring, and the pattern piece is fastened below semicircular ring 1 813 and semicircular ring 2 816, preventing the pattern piece from detaching from the mounting ring 717 during operation.

[0069] The remaining structure is the same as that in Example 1.

[0070] Example 3, referring to Figure 9-10 This is the third embodiment of the present invention. The difference between this embodiment and the second embodiment is that the fixing unit 9 includes a movable groove 91 formed on the light box 1 and a limiting component 92 installed in the movable groove 91.

[0071] Reference Figure 9-10 The limiting component 92 includes a movable plate 921 slidably connected in the movable groove 91, a push block 926 fixedly connected to the movable plate 921, an elastic element 922 fixedly connected between the movable plate 921 and the movable groove 91, a limiting rod 923 fixedly connected to the bottom of the movable plate 921, a limiting groove 924 opened on the slide bar 713, and a limiting groove 925 opened on the connecting plate 714.

[0072] Specifically, when the connecting plate 714 is pulled open to pull the pattern piece out of the opening 711, the limiting rod 923 can be inserted into the limiting groove 924. Under the action of the elastic element 922, the limiting rod 923 will always be in contact with the limiting groove 924. At this time, the pattern piece can be replaced. After the replacement is completed, when the connecting plate 714 and the opening 711 are closed, the push block 926 can be pulled to retract the limiting rod 923 into the movable groove 91. Then the push block 926 is released. At this time, under the action of the elastic element 922, the push block 926 will be inserted into the limiting groove 925. At this time, the position of the connecting plate 714 will be fixed.

[0073] During use, when the connecting plate 714 is pulled open and the pattern piece is pulled out of the opening 711, the limiting rod 923 can be inserted into the limiting groove 924. Under the action of the elastic element 922, the limiting rod 923 will always be in contact with the limiting groove 924. At this time, the pattern piece can be replaced. After the replacement is completed, when the connecting plate 714 and the opening 711 are closed, the push block 926 can be pulled to retract the limiting rod 923 into the movable groove 91. Then the push block 926 is released. At this time, under the action of the elastic element 922, the push block 926 will be pushed into the limiting groove 925, and the position of the connecting plate 714 will be fixed.

[0074] The remaining structure is the same as that in Example 2.

[0075] Example 4, refer to Figure 1-10 The fourth embodiment of the present invention provides a method of using a projection lamp module with replaceable projection patterns, including the following steps: first, pull the pull ring 715 to pull the pattern piece out of the lamp box 1. At this time, the docking groove 734 at the bottom of the mounting ring 717 will disengage from the ball bearing 732 on the rotating ring 4.

[0076] As the pattern piece is pulled out, the hook block 823 will abut against the two sides of the opening 711 and hook them. At this time, the sliding plate 822 will stop moving forward. Then, the pull ring 715 will continue to be pulled. Since the first sliding block 812 is fixedly connected to the sliding plate 822, the first semicircular ring 813 will also stop moving forward. Since one end of the pull rope 825 is fixedly connected to the sliding plate 822 and the other end passes around the rotating column 824 and is fixedly connected to the second sliding block 815, the second semicircular ring 816 will be pulled away from the first semicircular ring 813. At this time, the first semicircular ring 813 and the second semicircular ring 816 are in a fully open state.

[0077] Then, the limiting rod 923 is inserted into the limiting groove 924 on the slide bar 713;

[0078] Then, the old pattern piece is pushed out of the mounting groove 719 from the bottom of the mounting ring 717 with the finger, and the pattern piece is placed in the mounting groove 719, thus completing the installation of the pattern piece. The abutment block 722 applies pressure to the pattern piece to fix the pattern piece in the mounting groove 719.

[0079] Then release the limit rod 923 and close the connecting plate 714 and the opening 711. At this time, the mounting ring 717 will be located directly above the rotating ring 4. When the motor 6 starts, the rotating ring 4 will rotate, and the ball bearing 732 on the rotating ring 4 will automatically engage with the bottom docking groove 734 of the mounting ring 717, thus driving the mounting ring 717 to rotate.

[0080] Finally, when the connecting plate 714 and the opening 711 are closed, the push block 926 can be pushed to retract the limiting rod 923 into the movable groove 91. Then, the push block 926 can be released to allow the limiting rod 923 to be inserted into the limiting groove 925, thus completing the position fixation of the connecting plate 714 and the opening 711.

[0081] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A projection lamp module with interchangeable projection patterns, comprising a lamp box (1), a lens (2) disposed on the lamp box (1), a lamp holder (3) disposed inside the lamp box (1), a rotating ring (4) disposed on the lamp holder (3), a transmission belt (5) disposed on the rotating ring (4), and a motor (6) disposed inside the lamp box (1), characterized in that: It also includes an installation unit (7), a fastening unit (8), and a fixing unit (9); The installation unit (7) is disposed on the light box (1) and is used to install the pattern piece; The installation unit (7) includes: a sliding component (71) disposed on the light box (1) for carrying pattern pieces; the sliding component (71) includes: an opening (711) disposed on the light box (1), a slide rail (712) disposed between the opening (711) and the light box (1), a slide bar (713) disposed on the slide rail (712), a connecting plate (714) disposed between the slide bars (713), a pull ring (715) disposed on the connecting plate (714), an arc-shaped block (716) disposed on the slide bar (713), a mounting ring (717) disposed on the arc-shaped block (716), an annular slide groove (718) disposed on the mounting ring (717), and a mounting groove (719) disposed on the mounting ring (717); The abutting part (72) is disposed on the sliding part (71) and is used to abut the pattern piece; The docking component (73) is located at the bottom of the sliding component (71) and can be docked and linked with the rotating ring (4); The fastening unit (8) is disposed on the mounting unit (7) and is used to fasten the pattern piece; The fixing unit (9) is disposed on the light box (1) and is used to limit the position; The abutting component (72) includes a sliding groove (721) disposed on the mounting ring (717), an abutting block (722) disposed on the sliding groove (721), and an elastic element (723) disposed on the abutting block (722). The docking component (73) includes a telescopic groove (731) disposed on the rotating ring (4), a ball (732) disposed on the telescopic groove (731), an elastic element (733) disposed between the telescopic groove (731) and the ball (732), and a docking groove (734) disposed at the bottom of the mounting ring (717). The fastening unit (8) includes a fastening component (81) disposed on the slide bar (713) and a transmission component (82) disposed on the slide bar (713). The fastening component (81) includes a side groove (811) on the slide bar (713), a first sliding block (812) on the side groove (811), a first semicircular ring (813) on the first sliding block (812), a first opening (814) on the first semicircular ring (813), a second sliding block (815) on the side groove (811), a second semicircular ring (816) on the second sliding block (815), a second opening (817) on the second semicircular ring (816), and an elastic member (818) between the first opening (814) and the second opening (817). The transmission component (82) includes a top groove (821) on the slide bar (713), a sliding plate (822) on the top groove (821), a hook block (823) on the sliding plate (822), a rotating column (824) on the top groove (821), and a pull rope (825) between the second sliding block (815) and the sliding plate (822).

2. The projection lamp module with replaceable projection patterns according to claim 1, characterized in that: The fixing unit (9) includes a movable groove (91) disposed on the light box (1) and a limiting component (92) disposed in the movable groove (91).

3. The projection lamp module with replaceable projection patterns according to claim 2, characterized in that: The limiting component (92) includes a movable plate (921) disposed in the movable groove (91), a push block (926) disposed on the movable plate (921), an elastic element four (922) disposed between the movable plate (921) and the movable groove (91), a limiting rod (923) disposed at the bottom of the movable plate (921), a limiting groove one (924) disposed on the slide bar (713), and a limiting groove two (925) disposed on the connecting plate (714).

4. A method of using a projection lamp module with interchangeable projection patterns, employing the projection lamp module with interchangeable projection patterns as described in claim 3, characterized in that: Includes the following steps, First, pull the pull ring (715) to pull the pattern piece out of the light box (1). At this time, the docking groove (734) at the bottom of the mounting ring (717) will disengage from the ball (732) on the rotating ring (4). During the process of the pattern piece being pulled out, the hook block (823) will abut against the two sides of the opening (711) and hook the two sides of the opening (711), and the first semicircular ring (813) and the second semicircular ring (816) will also open accordingly. Then the limiting rod (923) is inserted into the limiting groove (924) on the slide bar (713); Then, the old pattern piece is pushed out of the mounting groove (719) from the bottom of the mounting ring (717) with the finger, and the new pattern piece is placed into the mounting groove (719). Under the action of the abutment block (722), the pattern piece is fixed in the mounting groove (719). Then release the limit rod (923) and close the connecting plate (714) and the opening (711). At this time, the mounting ring (717) will be located directly above the rotating ring (4). When the motor (6) starts, the rotating ring (4) will rotate, and the ball (732) on the rotating ring (4) will automatically connect with the bottom docking groove (734) of the mounting ring (717), thus driving the mounting ring (717) to rotate.

5. The method of using the interchangeable projection pattern projection lamp module according to claim 4, characterized in that: When the connecting plate (714) and the opening (711) are closed, the push block (926) can be pushed to retract the limiting rod (923) into the movable groove (91). Then, the push block (926) is released to allow the limiting rod (923) to be inserted into the second limiting groove (925), thus completing the position fixation of the connecting plate (714) and the opening (711).

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