Projection flashlight

Abstract

The utility model discloses a projection flashlight, and relates to the technical field of flashlights. Comprising a lower cylinder body and an upper cylinder body, the upper cylinder body is connected to the lower cylinder body in a clamped mode and fixedly connected with the lower cylinder body through screws, a battery bin is arranged at the tail of the lower cylinder body, metal reeds are installed at the head end and the tail end of the battery bin, a control panel is installed in the lower cylinder body, and the control panel is electrically connected with the metal reeds through wires. And lamp cavities are arranged at the head parts of the lower cylinder body and the upper cylinder body. According to the projection flashlight, the arranged eccentric motor is controlled through the control panel, rotary motion is converted into linear or complex track motion through the eccentric motor to replace a physical adjusting knob of the lens, the focal length of the lens is adjusted by changing the eccentric distance of the lens, and therefore the purpose of adjusting the projection size and definition is achieved; the picture is more flexible and changeable, the structure is simpler and more compact, and meanwhile the arrangement of the 1W lamp beads can help to meet the local fine illumination requirement at the same time.

Description

Technical Field

[0001] This utility model relates to the field of flashlight technology, specifically a projection flashlight. Background Technology

[0002] A projection flashlight is a type of flashlight that can project patterns or text from a slide onto a wall or screen. It is suitable for advertising, home ambient lighting, helping children recognize things, and promoting children's intellectual development.

[0003] Commonly available projection flashlights are divided into two categories: those with focus adjustment function and those without. For projection flashlights with focus adjustment function, an adjustment knob is usually set on the body of the flashlight to adjust the focus of the lens. However, the setting of the adjustment knob increases the complexity of the lamp tube structure. At the same time, if the projected image is to be more flexible and varied, the adjustment knob needs to be operated constantly, which can easily affect the user experience. Utility Model Content

[0004] This invention provides a projection flashlight to solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a projection flashlight, comprising a lower body and an upper body, wherein the upper body is snapped onto the lower body and fixedly connected to the lower body by screws; a battery compartment is provided at the tail of the lower body, and metal springs are installed at both ends of the battery compartment; a control board is installed inside the lower body, and the control board is electrically connected to the metal springs via wires; a lamp cavity is provided at the head of the lower and upper bodies, and a projection lamp board, an eccentric motor, and a 1W LED are installed inside the lamp cavity; a support rod is connected to the output end of the eccentric motor, and a projection lens is installed on the support rod; a condenser lens is installed on the 1W LED; and the projection lamp board, the eccentric motor, and the 1W LED are electrically connected to the control board via wires.

[0006] Furthermore, the battery compartment contains dry cell batteries, and a battery cover is snapped onto the battery compartment.

[0007] Furthermore, the top of the upper cylinder is provided with a switch hole, and the control board is provided with a toggle switch, which extends outward from the switch hole.

[0008] Furthermore, the lower cylinder has a lamp hole in the lamp cavity, and the 1W lamp bead and the condenser lens are both installed in the lamp hole.

[0009] Furthermore, the projection lamp board is provided with a through hole, through which the output end of the eccentric motor passes.

[0010] Furthermore, the lamp cavities of the lower and upper cylinders are provided with slots, and the projection lamp plate is tightly fitted into the slots.

[0011] Furthermore, the lower and upper cylinders are provided with openings in the lamp cavity, the projection lens is located in the opening, and a gap is left between the projection lens and the opening.

[0012] Compared with the prior art, the present invention provides a projection flashlight, which has the following beneficial effects:

[0013] This projection flashlight features an eccentric motor controlled by a control panel. The eccentric motor converts rotational motion into linear or complex trajectory motion, replacing the physical adjustment knob of the lens. By changing the eccentric distance of the lens, the focal length of the lens can be adjusted, thereby achieving the purpose of adjusting the projection size and clarity, making the image more flexible and varied, and the structure simpler and more compact. At the same time, the 1W LED can help meet the needs of local fine lighting. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is an exploded view of the present invention;

[0016] Figure 3 For the present utility model Figure 1 Reverse view;

[0017] Figure 4 For the present utility model Figure 3 Split diagram;

[0018] Figure 5 This is a cross-sectional view of the present invention.

[0019] In the diagram: 1. Lower cylinder; 2. Upper cylinder; 3. Battery compartment; 4. Metal spring; 5. Control board; 6. Lamp cavity; 7. Projection lamp board; 8. Eccentric motor; 9. 1W LED; 10. Support rod; 11. Projection lens; 12. Condenser lens; 13. Dry cell battery; 14. Battery cover; 15. Switch hole; 16. Toggle switch; 17. Lamp hole; 18. Through hole; 19. Slot; 20. Cavity opening. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-5This utility model discloses a projection flashlight, including a lower body 1 and an upper body 2. The upper body 2 is snapped onto the lower body 1 and fixedly connected to the lower body 1 by screws. The lower body 1 has a battery compartment 3 at its tail end, and metal springs 4 are installed at both ends of the battery compartment 3. A control board 5 is installed inside the lower body 1, and the control board 5 is electrically connected to the metal springs 4 through wires. The lower body 1 and the upper body 2 have a lamp cavity 6 at their heads, and a projection lamp board 7, an eccentric motor 8 and a 1W LED bead 9 are installed inside the lamp cavity 6. A support rod 10 is connected to the output end of the eccentric motor 8, and a projection lens 11 is installed on the support rod 10. A condenser lens 12 is installed on the 1W LED bead 9. The projection lamp board 7, the eccentric motor 8 and the 1W LED bead 9 are electrically connected to the control board 5 through wires.

[0022] Specifically, the battery compartment 3 is equipped with dry cell batteries 13, and a battery cover 14 is snapped onto the battery compartment 3.

[0023] In this embodiment, the main function of the battery compartment 3 is to store batteries and provide power to the flashlight. The battery compartment 3 is usually designed to accommodate specific battery types, such as AA, AAA, 18650, etc., to ensure that the flashlight can work normally. The design of the battery compartment 3 needs to be reasonable to ensure that the batteries can be placed securely inside, avoiding loosening or falling out during use. In addition, the design of the battery compartment 3 also needs to consider the ease of battery replacement. The design of the battery compartment 3 and battery cover 14 adopted here allows users to easily remove and replace the batteries. The dry cell battery 13, also known as a primary battery, is a voltaic battery. It uses an absorbent (such as sawdust or gelatin) to make the contents into a paste that does not overflow. It is commonly used as a power source for flashlights, radios, etc.

[0024] Specifically, the top of the upper cylinder 2 is provided with a switch hole 15, and the control board 5 is provided with a toggle switch 16, which extends outward from the switch hole 15.

[0025] In this implementation scheme, the control board 5 mainly functions to adjust and control the brightness of the light source, realize switch control, motor control, and special functions (such as strobe and SOS mode). The switch hole 15 is designed to avoid obstruction, so as to facilitate the use of the toggle switch 16. The main function of the toggle switch 16 is to control the connection and disconnection of the circuit by manually toggling it, thereby realizing the start-up, shutdown, or function switching of the equipment. Common types of toggle switches 16 include single-pole double-position, single-pole three-position, double-pole double-position, and double-pole three-position, etc. It is generally used in low-voltage circuits and has the characteristics of flexible slider action and stable and reliable performance.

[0026] Specifically, the lower cylinder 1 has a lamp hole 17 at the lamp cavity 6, and the 1W lamp bead 9 and the condenser lens 12 are both installed at the lamp hole 17.

[0027] In this embodiment, the lamp hole 17 is an assembly structure used for the installation and fixation of the 1W lamp bead 9 and the condenser lens 12. The 1W lamp bead 9 is commonly used in various lighting equipment, such as LED lamps and LED lighting lamps. They have the characteristics of high brightness and high efficiency and are suitable for occasions that require high brightness lighting. The main functions of the condenser lens 12 include focusing light and decorative aesthetics. Through the principle of light reflection, it makes the emitted light brighter and more concentrated, thereby illuminating farther.

[0028] Specifically, the projection lamp panel 7 is provided with a through hole 18, and the output end of the eccentric motor 8 passes through the through hole 18.

[0029] In this embodiment, the through hole 18 is a clearance structure to facilitate the installation and use of the eccentric motor 8. The eccentric motor 8 is used to convert rotational motion into linear or complex trajectory motion to replace the physical adjustment knob of the lens, and to adjust the focal length by changing the eccentricity of the lens.

[0030] Specifically, the lamp cavity 6 of the lower cylinder 1 and the upper cylinder 2 is provided with a slot 19, and the projection lamp plate 7 is tightly fitted into the slot 19.

[0031] In this embodiment, the slot 19 is an assembly structure, mainly used for the installation and fixing of the projection lamp board 7. The projection lamp board 7 emits white light, which is transmitted through the lens.

[0032] Specifically, the lower cylinder 1 and the upper cylinder 2 are provided with a cavity 20 at the lamp cavity 6, the projection lens 11 is located in the cavity 20, and there is a gap between the projection lens 11 and the cavity 20.

[0033] In this implementation plan, such as Figure 5 As shown, the gap between the projection lens 11 and the cavity 20 is for the purpose of adjusting the lens focal length.

[0034] When using it, you first need to prepare pre-cut projection paper. These paper pieces can be printed with animal, plant, or other various shapes and patterns. There are also ready-made projection paper pieces available on the market. Place the prepared projection paper in front of the lens, adjust it to a suitable position, turn on the flashlight, and the projection lamp panel 7 emits white light. The light beam passes through the lens, and the eccentric motor 8 converts the rotational motion into linear or complex trajectory motion to replace the physical adjustment knob of the lens. By changing the eccentric distance of the lens, the focal length of the lens is adjusted, thereby achieving the purpose of adjusting the projection size and clarity, so that the projection presents a clear image and the picture is more flexible and varied. At the same time, the setting of 1W lamp beads 9 can help meet the needs of local fine lighting.

[0035] In summary, this projection flashlight features an eccentric motor 8 controlled by a control board 5. The eccentric motor 8 converts rotational motion into linear or complex trajectory motion, replacing the physical adjustment knob of the lens. By changing the eccentric distance of the lens, the focal length of the lens is adjusted, thereby achieving the purpose of adjusting the projection size and clarity. This makes the image more flexible and varied, and the structure simpler and more compact. At the same time, the 1W LED 9 can help meet the needs of local fine lighting.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A projection flashlight, comprising a lower tube body (1) and an upper tube body (2), characterized in that: The upper cylinder (2) is snapped onto the lower cylinder (1) and fixedly connected to the lower cylinder (1) by screws. The lower cylinder (1) has a battery compartment (3) at its tail end, and metal springs (4) are installed at both ends of the battery compartment (3). A control board (5) is installed inside the lower cylinder (1), and the control board (5) is electrically connected to the metal springs (4) through wires. The lower cylinder (1) and the upper cylinder (2) have lamp cavities (6) at their heads, and a projection lamp board (7), an eccentric motor (8) and a 1W lamp bead (9) are installed inside the lamp cavity (6). A support rod (10) is connected to the output end of the eccentric motor (8), and a projection lens (11) is installed on the support rod (10). A condenser lens (12) is installed on the 1W lamp bead (9). The projection lamp board (7), the eccentric motor (8) and the 1W lamp bead (9) are electrically connected to the control board (5) through wires.

2. A projection flashlight according to claim 1, characterized in that: The battery compartment (3) is equipped with a dry cell battery (13), and a battery cover (14) is snapped onto the battery compartment (3).

3. A projection flashlight according to claim 1, characterized in that: The top of the upper cylinder (2) is provided with a switch hole (15), and the control plate (5) is provided with a toggle switch (16), which extends outward from the switch hole (15).

4. A projection flashlight according to claim 1, characterized in that: The lower cylinder (1) has a lamp hole (17) in the lamp cavity (6), and the 1W lamp bead (9) and the condenser lens (12) are both installed in the lamp hole (17).

5. A projection flashlight according to claim 1, characterized in that: The projection lamp plate (7) is provided with a through hole (18), and the output end of the eccentric motor (8) passes through the through hole (18).

6. A projection flashlight according to claim 1, characterized in that: The lower cylinder (1) and the upper cylinder (2) are provided with slots (19) in the lamp cavity (6), and the projection lamp plate (7) is tightly fitted into the slots (19).

7. A projection flashlight according to claim 1, characterized in that: The lower cylinder (1) and the upper cylinder (2) are provided with a cavity (20) at the lamp cavity (6), the projection lens (11) is located in the cavity (20), and there is a gap between the projection lens (11) and the cavity (20).

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