Flashlight with limiting and focusing functions

Abstract

The utility model discloses a limiting focusing flashlight which comprises a flashlight body, a conductive inner barrel, a storage battery, a drive board, a lamp bead, a focusing barrel, a convex lens, a tail barrel, a PCB conductive part, a conductive copper ring, a charging port and a tail cover. According to the electric torch, the electric torch body is arranged, the tail cylinder is screwed towards the direction where the electric torch body is located till the PCB electric conduction part is in attached contact with the tail portion of the rear end of the electric conduction inner cylinder through the electric conduction copper ring to achieve electric connection, the storage battery and the driving plate are powered on, the lamp bead is lightened, and therefore the electric torch body is started, as the flashlight main body is turned on and off through a certain number of turns of rotation of the tail tube, the switch structure is not easy to start by mistake, and the situation that the flashlight main body is turned on for no reason and wastes electricity is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of flashlights, in particular to a flashlight with limited focus. Background Art

[0002] The mini high-intensity flashlight is a flashlight with a compact structure and focuses on portability. The design concept of the mini high-intensity flashlight emphasizes reliability, strong light output, extreme size and light weight and portability to meet the lighting needs of users in different environments.

[0003] Existing mini high-intensity flashlights generally have charging ports on the side of the body, which is not aesthetically pleasing and affects the grip feel. In addition, due to the compact spatial structure on the surface of the mini flashlight, the charging port usually uses a MaY interface, which is generally not very versatile and usually requires a special charging cable to charge, which is inconvenient for daily charging. In addition, existing mini high-intensity flashlights usually use dials and buttons as light switches. This push-type switch structure may be accidentally turned on and off, which may easily cause the flashlight to be turned on for no reason, wasting power and affecting subsequent use. To this end, we propose a flashlight with limited focus to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a flashlight with limited focus to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a flashlight with limited focus, including a flashlight body, a conductive inner tube, a battery, a driving board, a lamp bead, a focusing tube, a convex mirror, a tail tube, a PCB conductive part, a conductive copper ring, a charging port and a tail cover, the inside of the flashlight body is designed with a conductive inner tube, a battery is placed inside the conductive inner tube, the front end negative pole of the battery contacts with the conductive spring inside the conductive inner tube to achieve electrical connection, the front part of the conductive inner tube is installed with a driving board and electrically connected with it, the inner side of the front end of the flashlight body is installed with a lamp bead, and the lamp bead is electrically connected with the driving board, and the front end surface of the flashlight body is integrally provided with a sleeve part, and the surface of the sleeve part is damped and slidably sleeved for installation There is a focusing tube, which is sleeved on the outside of the lamp bead. A convex mirror is installed on the inner side of the front end of the focusing tube, and the convex mirror and the lamp bead are in the same direction line. A tail tube is threadedly installed on the rear end surface of the flashlight body, and a PCB conductive part is installed inside the tail tube. The positive pole at the rear end of the battery fits and contacts with the conductive part of the PCB to achieve electrical connection. A conductive copper ring is welded on the front surface of the conductive part of the PCB. When the tail tube is tightened with the flashlight body, the conductive part of the PCB fits and contacts with the rear end of the conductive inner tube through the conductive copper ring to achieve electrical connection. A charging port is opened at the rear end of the tail tube, and the charging port establishes an electrical connection with the conductive part of the PCB. A tail cover is threadedly installed on the rear end surface of the tail tube, and the tail cover is sleeved outside the charging port.

[0006] Preferably, the driving board is provided with at least one brightness gear, and the driving board performs gear rotation adjustment by repeated switching actions.

[0007] Preferably, the charging port adopts a TYPC interface.

[0008] Preferably, the distance between the convex mirror and the lamp bead is in the range of 2-10 mm.

[0009] Preferably, the left and right sides of the sleeve portion are provided with flat cross sections, and the shape of the inner wall of the focusing tube matches the surface shape of the sleeve portion.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model sets a flashlight body, and tightens the tail cylinder toward the direction of the flashlight body until the conductive part of the PCB is in close contact with the rear end of the conductive inner cylinder through the conductive copper ring to achieve electrical connection, so that the battery and the driving board are energized and the lamp beads are lit, thereby starting the flashlight body. Among them, because the tail cylinder needs to be rotated a certain number of times to realize the opening and closing of the flashlight body, the switch structure is not easy to be started by mistake, so as to avoid the situation that the flashlight body is turned on for no reason and wastes electricity.

[0012] In the utility model, by arranging the charging port at the rear end of the tail barrel, more design space can be freed up on the surface of the flashlight body and the aesthetics is improved. In addition, the charging port adopts a TYPC interface, which has excellent versatility, so that the charging port can be compatible with charging cables of other electronic devices, and daily charging is quick and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the overall right side cross-sectional structure of the utility model;

[0015] Figure 3 For this utility model Figure 2 Schematic diagram of the structure of the middle tail cylinder in the unscrewed state;

[0016] Figure 4 It is a schematic diagram of the focusing state of the flashlight body in the utility model;

[0017] Figure 5 It is a right side structural schematic diagram of the utility model in which the tail cover is disassembled;

[0018] Figure 6 It is a rear view structural schematic diagram of the tail cylinder of the utility model.

[0019] In the figure: flashlight body - 1, socket part - 101, conductive inner cylinder - 2, storage battery - 3, drive board - 4, lamp bead - 5, focusing cylinder - 6, convex lens - 7, tail cylinder - 8, PCB conductive part - 9, conductive copper ring - 10, charging port - 11, tail cap - 12. Specific implementation mode

[0020] In order to further explain the technical solution of the present invention, the following will be elaborated in detail through specific embodiments.

[0021] Please refer to Figure 1-6 , the present invention provides a flashlight with limit focusing, including a flashlight body 1, a conductive inner cylinder 2, a storage battery 3, a drive board 4, a lamp bead 5, a focusing cylinder 6, a convex lens 7, a tail cylinder 8, a PCB conductive part 9, a conductive copper ring 10, a charging port 11 and a tail cap 12. A conductive inner cylinder 2 is designed inside the flashlight body 1, and a storage battery 3 is arranged inside the conductive inner cylinder 2. The negative electrode at the front end of the storage battery 3 abuts against the conductive spring inside the conductive inner cylinder 2 to achieve electrical connection. A drive board 4 is installed at the front part of the conductive inner cylinder 2 and is electrically connected to it. A lamp bead 5 is installed inside the front end of the flashlight body 1, and the lamp bead 5 is electrically connected to the drive board 4. A socket part 101 is integrally arranged on the front surface of the flashlight body 1, and a focusing cylinder 6 is damping-slidingly sleeved and installed on the surface of the socket part 101. The focusing cylinder 6 is sleeved outside the lamp bead 5. A convex lens 7 is installed inside the front end of the focusing cylinder 6, and the convex lens 7 and the lamp bead 5 are on the same direction line. By moving the convex lens 7, the focusing adjustment of the light can be realized. The tail cylinder 8 is threadedly sleeved and installed on the rear surface of the flashlight body 1. A PCB conductive part 9 is installed inside the tail cylinder 8. The positive electrode at the rear end of the storage battery 3 abuts against and contacts the PCB conductive part 9 to achieve electrical connection. A conductive copper ring 10 is welded on the front surface of the PCB conductive part 9. When the tail cylinder 8 and the flashlight body 1 are tightened, the PCB conductive part 9 is in contact with the rear end of the conductive inner cylinder 2 through the conductive copper ring 10 to achieve electrical connection, so that the storage battery 3 and the drive board 4 are powered on and the lamp bead 5 is lit. A charging port 11 is opened at the rear end of the tail cylinder 8, and the charging port 11 is electrically connected to the PCB conductive part 9. The tail cap 12 is threadedly sleeved and installed on the rear surface of the tail cylinder 8, and the tail cap 12 is sleeved outside the charging port 11, thus playing a role in protecting the charging port 11 from water, dust, etc.

[0022] Further explanation, the drive board 4 provides at least 2 brightness levels, and the drive board 4 adjusts the level rotation through repeated switch actions, so that the flashlight body 1 can be applied to scenarios with different light intensity requirements.

[0023] Further explanation, the charging port 11 adopts a TYPC interface. The TYPC interface has the advantages of fast charging rate, high safety, small size, good compatibility, etc. It is the mainstream interface for electronic devices, with high versatility, enabling the charging port 11 to be compatible with the charging cables of other electronic devices, making daily charging fast and convenient.

[0024] It is further explained that the distance between the convex mirror 7 and the lamp bead 5 is in the range of 2-10 mm, which has good focal length adjustability.

[0025] To further explain, the left and right sides of the sleeve portion 101 are provided with flat cross-sections, and the inner wall shape of the focusing tube 6 matches the surface shape of the sleeve portion 101 to limit the rotation of the focusing tube 6 and the sleeve portion 101, so that the focusing tube 6 can only slide linearly with the sleeve portion 101 to avoid operational conflicts with the rotatable tail tube 8.

[0026] Here’s how it works:

[0027] First, by setting the charging port 11 at the rear end of the tail cylinder 8, more design space can be freed up from the surface of the flashlight body 1 and the aesthetics is improved. When charging, the tail cover 12 is pulled out from the tail of the tail cylinder 8 to expose the charging port 11, and then the charging port 11 is connected to the external charging line to charge the battery 3. After charging is completed, the external charging line is removed, and the tail cover 12 is screwed to the tail of the tail cylinder 8 to cover the charging port 11, which provides protection for the charging port 11 such as waterproofing and dustproofing. The charging port 11 adopts a TYPC interface, which has excellent versatility, so that the charging port 11 can be compatible with charging lines of other electronic devices, and daily charging is quick and convenient.

[0028] Second, when in use, tighten the tail cylinder 8 toward the direction of the flashlight body 1 to reduce the distance between the PCB conductive part 9 and the conductive inner cylinder 2, until the PCB conductive part 9 is in contact with the rear end of the conductive inner cylinder 2 through the conductive copper ring 10 to achieve electrical connection, so that the battery 3 and the driving board 4 are energized and the lamp bead 5 is lit, thereby starting the flashlight body 1.

[0029] Third, when idle, loosen the tail cylinder 8 and the flashlight body 1 to increase the distance between the PCB conductive part 9 and the conductive inner cylinder 2 until the conductive copper ring 10 breaks contact with the conductive inner cylinder 2. At this time, the battery 3 and the drive board 4 are powered off to extinguish the lamp bead 5, thereby turning off the flashlight body 1. Among them, since the tail cylinder 8 needs to go through a certain number of rotations to realize the opening and closing of the flashlight body 1, the switch structure is not easy to be accidentally started, thereby avoiding the situation where the flashlight body 1 is turned on for no reason and wastes electricity.

[0030] Fourth, during use, the user can move the focusing tube 6 to adjust the light focus. When the focusing tube 6 is controlled to move away from the flashlight body 1, the distance between the convex mirror 7 and the lamp bead 5 increases, so that the flashlight body 1 enters a focusing state; when the focusing tube 6 is controlled to move toward the flashlight body 1, the distance between the convex mirror 7 and the lamp bead 5 decreases, so that the flashlight body 1 enters a floodlight state.

[0031] The above are only the preferred examples of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A flashlight with limit focusing, characterized in that: It includes a flashlight body (1), a conductive inner cylinder (2), a storage battery (3), a driving board (4), a lamp bead (5), a focusing cylinder (6), a convex lens (7), a tail cylinder (8), a PCB conductive part (9), a conductive copper ring (10), a charging port (11) and a tail cap (12). Inside the flashlight body (1), a conductive inner cylinder (2) is designed. Inside the conductive inner cylinder (2), a storage battery (3) is arranged. The negative electrode at the front end of the storage battery (3) abuts against the conductive spring inside the conductive inner cylinder (2) to achieve electrical connection. At the front part of the conductive inner cylinder (2), a driving board (4) is installed and electrically connected thereto. Inside the front end of the flashlight body (1), a lamp bead (5) is installed, and the lamp bead (5) is electrically connected to the driving board (4). On the front surface of the flashlight body (1), a socket part (101) is integrally provided. A focusing cylinder (6) is damping-slidingly socket-mounted on the surface of the socket part (101). The focusing cylinder (6) is sleeved outside the lamp bead (5). Inside the front end of the focusing cylinder (6), a convex lens (7) is installed. The convex lens (7) and the lamp bead (5) are on the same direction line. On the rear surface of the flashlight body (1), a tail cylinder (8) is threadedly socket-mounted. Inside the tail cylinder (8), a PCB conductive part (9) is installed. The positive electrode at the rear end of the storage battery (3) abuts against and contacts the PCB conductive part (9) to achieve electrical connection. On the front surface of the PCB conductive part (9), a conductive copper ring (10) is welded. When the tail cylinder (8) is screwed tightly with the flashlight body (1), the PCB conductive part (9) is in contact with the rear end of the conductive inner cylinder (2) through the conductive copper ring (10) to achieve electrical connection. At the rear end of the tail cylinder (8), a charging port (11) is provided. The charging port (11) is electrically connected to the PCB conductive part (9). On the rear surface of the tail cylinder (8), a tail cap (12) is threadedly socket-mounted. The tail cap (12) is sleeved outside the charging port (11).

2. The flashlight with limit focusing according to claim 1, characterized in that: The driving board (4) provides at least 2 brightness levels, and the driving board (4) adjusts the level rotation by repeating the switch action.

3. The flashlight with limit focusing according to claim 1, characterized in that: The charging port (11) adopts a TYPC interface.

4. The flashlight with limit focusing according to claim 1, wherein: The distance range between the convex lens (7) and the lamp bead (5) is 2 - 10 mm.

5. The flashlight with limit focusing according to claim 1, wherein: On the left and right sides of the socket part (101), flat cross-sections are provided, and the shape of the inner wall of the focusing cylinder (6) matches the shape of the surface of the socket part (101).

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