Projection lamp

Abstract

The utility model belongs to the technical field of lamps, and particularly relates to a projection lamp. Comprising a lampshade and a modeling cover arranged in the lampshade, more than two independent projection chambers are arranged on the modeling cover, a lamp bead is arranged in each projection chamber, and a hollow pattern is arranged on the modeling cover corresponding to each projection chamber. The lamp beads are controlled by the control circuit to be sequentially, alternately and independently turned on or more than two lamp beads are alternately combined to be turned on, and variable patterns are projected on the lampshade. According to the utility model, the change of projection patterns is realized by controlling the lighting of the lamp beads in different projection chambers, a projection negative film does not need to be replaced, the pattern change is fast, the interestingness and decoration are enhanced, and the festival atmosphere can be foiled.

Description

Technical Field:

[0001] The utility model belongs to the technical field of lamps, and particularly refers to a projection lamp. Background Art:

[0002] A Chinese utility model patent (Publication No. CN 218721020U, Application Date: November 18, 2022, Publication Date: March 24, 2023) discloses a projection lamp, which includes a base, an LED light source, a projection negative film, and a lampshade. A battery module for supplying power to the LED light source is installed in the base. The LED light source is installed on the base. The projection negative film is detachably installed on the base. The lampshade covers the outside of the projection negative film and is detachably connected to the base. Different patterns can be projected by replacing the projection negative film in this projection lamp. Summary of the Invention:

[0003] The purpose of the utility model is to provide a projection lamp that can achieve changes in the projected pattern by controlling the lighting and extinguishing of lamp beads.

[0004] The utility model is implemented as follows:

[0005] A projection lamp includes a lampshade and a shaping cover disposed inside the lampshade. Two or more independent projection chambers are provided on the shaping cover. Lamp beads are provided in each projection chamber. Hollow patterns are provided on the shaping cover corresponding to each projection chamber. The lamp beads are controlled by a control circuit to alternately light up individually in sequence or alternately light up in combination of two or more lamp beads, so as to project changing patterns on the lampshade.

[0006] In the above-mentioned projection lamp, the hollow patterns are provided on the side plates of the shaping cover opposite to the lamp beads in each projection chamber.

[0007] In the above-mentioned projection lamp, three projection chambers are provided and arranged in the up-down direction, which are the first projection chamber, the second projection chamber, and the third projection chamber respectively. Eye and nose hollow patterns are provided on the side plate of the shaping cover corresponding to the first projection chamber. A smiling mouth hollow pattern is provided on the side plate of the shaping cover corresponding to the second projection chamber. A laughing mouth hollow pattern is provided on the side plate of the shaping cover corresponding to the third projection chamber.

[0008] In the above-mentioned projection lamp, the shaping cover includes a cover body with an opening on one side. A circuit board is provided at the open end of the cover body. The circuit board is disposed opposite to the side plate provided with the hollow pattern. The circuit board and the cover body form one or more independent projection chambers, and the lamp beads are provided on the circuit board.

[0009] In the above-mentioned projection lamp, one or more mounting posts are provided at the open end of the cover body, and the circuit board is connected to the cover body through the mounting posts.

[0010] In one of the above projection lamps, an installation base is provided at the upper end of the shaping cover. The installation base includes a flange that can be hung on the mouth of the lamp cover and a wire through-hole for facilitating the passage of wires.

[0011] In one of the above projection lamps, the wire through-hole is a closed-loop hole or an open hole.

[0012] In one of the above projection lamps, a threaded port is provided at the upper end of the lamp cover, and a lamp head is screwed onto the threaded port to limit the flange between the lamp head and the lamp cover.

[0013] The prominent advantages of the present utility model compared with the prior art are as follows:

[0014] 1. The present utility model realizes the change of the projection pattern by controlling the lighting of the lamp beads in different projection chambers, without the need to replace the projection negative film. The pattern transformation is fast, enhancing the interest and decoration, and can set off the festival atmosphere;

[0015] 2. An open hole is provided on the installation base of the shaping cover of the present utility model, which is convenient for the shaping cover to be removed from the lamp cover without being interfered by wires, and the replacement is convenient. Description of the drawings:

[0016] Figure 1 It is a schematic diagram of the present utility model projecting a smiling expression, and the dotted line in the figure represents the projection pattern;

[0017] Figure 2 It is a schematic diagram of the present utility model projecting a laughing expression, and the dotted line in the figure represents the projection pattern;

[0018] Figure 3 It is one of the three-dimensional schematic diagrams of the shaping cover of the present utility model;

[0019] Figure 4 It is another three-dimensional schematic diagram of the shaping cover of the present utility model;

[0020] Figure 5 It is the third three-dimensional schematic diagram of the shaping cover of the present utility model;

[0021] Figure 6 It is a schematic diagram of the lamp head of the present utility model.

[0022] In the figure: 1. Lamp cover; 2. Shaping cover; 3. First projection chamber; 4. Second projection chamber; 5. Third projection chamber; 6. Hollow pattern of eyes and nose; 7. Hollow pattern of smiling mouth; 8. Hollow pattern of laughing mouth; 9. Installation post; 10. Installation base; 11. Flange; 12. Wire through-hole; 13. Lamp head. Detailed implementation manners:

[0023] The following further describes the present utility model with specific embodiments. Refer to Figure 1 —6:

[0024] The present utility model provides a projection lamp, which includes a lamp shade 1 and a shaping cover 2 arranged inside the lamp shade 1. The lamp shade 1 is light-transmitting and opaque. Two or more independent projection chambers are arranged on the shaping cover 2. Lamp beads are arranged in each projection chamber. Hollow patterns are arranged on the shaping cover 2 corresponding to each projection chamber. The lamp beads are connected in parallel, and the lamp beads are controlled by a control circuit to alternately light up individually in sequence or two or more lamp beads alternately light up in combination, so as to project changing patterns on the lamp shade 1.

[0025] Furthermore, the hollow patterns are arranged on the side plates of the shaping cover 2 opposite to the lamp beads in each projection chamber.

[0026] The present utility model controls the lamp beads in the corresponding projection chambers through a controller to achieve different projection patterns. For example, Figure 3 and Figure 4 , three projection chambers are provided, namely a first projection chamber 3, a second projection chamber 4 and a third projection chamber 5. Hollow patterns 6 of the eyes and nose of a pumpkin lamp expression are arranged on the shaping cover 2 corresponding to the first projection chamber 3. A hollow pattern 7 of a smiling mouth is arranged on the shaping cover 2 corresponding to the second projection chamber 4. A hollow pattern 8 of a laughing mouth is arranged on the shaping cover 2 corresponding to the third projection chamber 6. When the control circuit controls the lamp beads in the first projection chamber 3 and the second projection chamber 4 to light up simultaneously, a smiling expression is shown, as shown in Figure 1 . When the lamp beads in the first projection chamber 3 and the third projection chamber 5 light up simultaneously, a laughing expression is shown, as shown in Figure 2 . The control circuit can control the lamp beads in the second projection chamber 4 and the lamp beads in the third projection chamber 5 to alternately light up, so as to realize the instant switching between the smiling expression and the laughing expression.

[0027] In addition, the present utility model can also set other hollow patterns for alternate projection, such as projecting the moon, projecting the moon and the story of Chang'e flying to the moon.

[0028] The hollow patterns of the present utility model can be changed, so that different changeable projection patterns can be formed to be applicable to different occasions. Such as: Halloween, Christmas, Mid-Autumn Festival, etc.

[0029] Furthermore, the shaping cover 2 includes a cover body with an opening on one side. A circuit board is arranged at the opening end of the cover body. The circuit board and the cover body form one or more independent projection chambers, and the lamp beads are arranged on the circuit board.

[0030] To facilitate the installation of the circuit board, one or more mounting posts 5 are provided at the open end of the cover body, and the circuit board is connected to the cover body through the mounting posts 9. For example, insertion holes are provided at corresponding positions on the circuit board, and the mounting posts 5 are inserted into the insertion holes. The mounting posts 9 are arranged diagonally.

[0031] In addition, snap connection can also be adopted, or a tight fit connection is made through a sealing ring between the open end of the cover body and the circuit board, or they are directly fixed by glue or other means.

[0032] The shaping cover 2 and the lamp shade 1 of the present utility model are connected by suspension. Specifically, a mounting seat 10 is provided at the upper end of the shaping cover 2, and the mounting seat 10 includes a convex edge 11 that can be hung on the mouth of the lamp shade 1 and a wire through hole 12 that facilitates the passage of wires.

[0033] The shaping cover 2 is inserted into the lamp shade 1 and is suspended at the mouth of the lamp shade 1 through the convex edge 11. The convex edges 11 are symmetrically arranged to facilitate adjusting the projection surface to face outward.

[0034] In addition, a cavity is further provided above the first projection chamber 3 of the shaping cover 2 of the present utility model, and this cavity is used to accommodate wires and the like.

[0035] Furthermore, the wire through hole 12 is a closed-loop hole or an open hole. The open hole is more convenient for the disassembly and assembly of the wire. After the wire is connected to the circuit board and the circuit board is separated from the shaping cover 2, the wire can be directly removed from the open hole through the wire through hole 12.

[0036] To fix the shaping cover 2, a threaded port is provided at the upper end of the lamp shade 1, and a lamp cap 13 is screwed onto the threaded port to limit the convex edge 11 between the lamp cap 13 and the lamp shade 1.

[0037] The above embodiments are only one of the preferred embodiments of the present utility model, and do not limit the scope of implementation of the present utility model. Therefore, all equivalent changes made according to the shape, structure, and principle of the present utility model should be covered within the protection scope of the present utility model.

Claims

1. A projection lamp, characterized in that: It includes a lamp shade (1) and a shaping cover (2) arranged inside the lamp shade (1). Two or more independent projection chambers are provided on the shaping cover (2). Lamp beads are arranged in each projection chamber. Hollow patterns are arranged on the shaping cover (2) corresponding to each projection chamber. The lamp beads are controlled by a control circuit to light up alternately and individually in sequence or two or more lamp beads light up alternately in combination, so as to project changing patterns on the lamp shade (1).

2. The projection lamp according to claim 1, characterized in that: The hollow patterns are arranged on the side plates of the shaping cover (2) opposite to the lamp beads in each projection chamber.

3. A projection lamp according to claim 1 or 2, characterized in that: There are three projection chambers, arranged in the up-down direction, namely a first projection chamber (3), a second projection chamber (4) and a third projection chamber (5). Hollow patterns of eyes and nose (6) are arranged on the side plate of the shaping cover (2) corresponding to the first projection chamber (3). A hollow pattern of a smiling mouth (7) is arranged on the side plate of the shaping cover (2) corresponding to the second projection chamber (4). A hollow pattern of a laughing mouth (8) is arranged on the side plate of the shaping cover (2) corresponding to the third projection chamber (5).

4. A projection lamp according to claim 2, characterized in that: The shaping cover (2) includes a cover body with an opening on one side. A circuit board is arranged at the opening end of the cover body. The circuit board is arranged opposite to the side plate with the hollow pattern. The circuit board and the cover body form one or more independent projection chambers. The lamp beads are arranged on the circuit board.

5. The projection lamp according to claim 4, characterized in that: One or more mounting posts (9) are arranged at the opening end of the cover body. The circuit board is connected to the cover body through the mounting posts (9).

6. A projection lamp according to claim 1 or 2, characterized in that: A mounting seat (10) is arranged at the upper end of the shaping cover (2). The mounting seat (10) includes a convex edge (11) that can be hung on the mouth of the lamp shade (1) and a wire through hole (12) for facilitating the passage of wires.

7. A projection lamp according to claim 6, characterized in that: The wire through hole (12) is a closed-loop hole or an open hole.

8. A projection lamp according to claim 6, characterized in that: A threaded port is arranged at the upper end of the lamp shade (1). A lamp holder (13) is screwed to the threaded port to limit the convex edge between the lamp holder (13) and the lamp shade (1).

Images