Focusable torch

Abstract

A focusing flashlight includes a lamp head and a lamp body, the lamp body is provided with a matching part at the front end, the lamp head is sleeved on the matching part and slides along the front and back direction, the lamp head is provided with a lens at the front end, the outer wall of the matching part is provided with a limiting convex rib, the inner wall of the lamp head is provided with a limiting concave groove, the limiting convex rib and the limiting concave groove extend along the front and back direction, and the limiting convex rib is slidingly connected in the limiting concave groove. After the above structure is used, compared with the prior art, the lamp head can be prevented from rotating circumferentially during the focusing operation, and the lamp head can be prevented from being not matched with the lamp body after rotating.

Description

Technical Field

[0001] This utility model relates to the field of lighting tools, and in particular to a focusing flashlight. Background Technology

[0002] Adjustable-focus flashlights change the light focus by adjusting the distance between the LED and the lens, allowing for free switching between near and far beams. They are widely used in outdoor activities, exploration, search and rescue, and other fields. Typically, the lens is located at the head of the flashlight, and the LED is located at the front of the body. The head slides back and forth along the front of the body, with the cylindrical structure at the front of the body and the circular hole structure at the head sliding and guiding each other axially. Most existing flashlights use aluminum shells, drawn from aluminum tubing. Because there is no circumferential restraint structure between the cylindrical structure and the circular hole structure, the head rotates circumferentially when the hand holds and pulls the head to adjust the focus. While this rotation doesn't affect the overall appearance of some cylindrical flashlights, it does affect the overall shape and appearance of irregularly shaped flashlights, such as those with polygonal shapes or special alignment patterns on the outer wall. Therefore, a structure is needed to prevent the head from rotating during focusing operations. Utility Model Content

[0003] This invention provides a flashlight structure that prevents the lamp head from rotating circumferentially during focusing operations, addressing the above-mentioned problems.

[0004] The technical solution used by this utility model to solve the above problems is: a focusing flashlight, including a lamp head and a lamp body, the front end of the lamp body is provided with a mating part, the lamp head is sleeved on the mating part and slides in the front-back direction, the front end of the lamp head is provided with a lens, the outer wall of the mating part is provided with a limiting rib, the inner wall of the lamp head is provided with a limiting groove, the limiting rib and the limiting groove extend in the front-back direction, and the limiting rib is slidably connected in the limiting groove.

[0005] This utility model of a focusing flashlight features a limiting rib and a limiting groove between the lamp body and the lamp head. The limiting rib and the limiting groove slide axially and limit each other circumferentially. Compared with the prior art, the advantage of this structure is that it can prevent the lamp head from rotating circumferentially during focusing operations, thus avoiding mismatch between the lamp head and the shape of the lamp body after rotation.

[0006] Preferably, the lamp body includes an inner cylinder and an outer cylinder, with the outer cylinder fitted around the outer periphery of the inner cylinder. The mating part is located at the front of the inner cylinder and extends beyond the front end of the outer cylinder. The lamp body is manufactured separately as the inner and outer cylinders and then assembled, which facilitates the creation of special patterns or shapes on the outer cylinder.

[0007] Preferably, the inner cylinder includes a plastic body and a metal base. The metal base is connected to the front end of the plastic body. The side wall of the metal base is provided with a through groove extending in the front-rear direction. The front end of the plastic body is provided with a protruding post. The protruding post passes through the through groove and protrudes from the side wall of the metal base to form a limiting rib.

[0008] Preferably, the plastic body has a connecting post protruding from its front end, and the metal base has a connecting groove at its rear end that engages with the connecting post; the metal base has a mounting groove at its front end, and the bottom of the mounting groove has a through hole communicating with the connecting groove. After the connecting post and the connecting groove are inserted, they are then fixed together by fasteners passing through the through hole.

[0009] Preferably, a gap is provided between the rear end of the metal base and the front end of the plastic body, and a heat dissipation hole communicating with the gap is provided on the front side wall of the outer cylinder. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of the focusing flashlight of this utility model.

[0011] Figure 2 This is a cross-sectional view of the focusing flashlight of this utility model.

[0012] Figure 3 This is an exploded view of the focusing flashlight of this utility model.

[0013] Figure 4 This is a schematic diagram of the metal base of the focusing flashlight of this utility model.

[0014] As shown in the figure: 1. Lamp holder; 11. Lens; 12. Limiting groove; 2. Lamp body, 21. Inner cylinder, 211. Mating part, 212. Limiting rib, 22. Outer cylinder, 221. Heat dissipation hole; 3. Plastic body; 31. Protruding post; 32. Connecting post; 4. Metal base; 41. Through groove; 42. Connecting groove; 43. Mounting groove; 44. Light-emitting body assembly. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0016] like Figures 1 to 4As shown, a focusing flashlight includes a lamp head 1 and a lamp body 2. The front end of the lamp body 2 is provided with a mating part 211. The lamp head 1 is sleeved on the mating part 211 and slides in the front-back direction. The front end of the lamp head 1 is provided with a lens 11. The outer wall of the mating part 211 is provided with a limiting rib 212, and the inner wall of the lamp head 1 is provided with a limiting groove 12. The limiting rib 212 and the limiting groove 12 extend in the front-back direction, and the limiting rib 212 is slidably connected in the limiting groove 12.

[0017] The lamp body 2 includes an inner cylinder 21 and an outer cylinder 22. The outer cylinder 22 is fitted around the outer periphery of the inner cylinder 21. The mating part 211 is located at the front of the inner cylinder 21 and extends beyond the front end of the outer cylinder 22. The lamp body 2 is assembled after the inner cylinder 21 and the outer cylinder 22 are manufactured separately. The lamp holder 1 and the outer cylinder 22 are made of aluminum. Special patterns or shapes can be made on the outer cylinder 22. For example, in this example, the outer contour of the lamp body 2 and the lamp holder 1 is octagonal. The separate inner cylinder 21 and the outer cylinder 22 facilitate manufacturing.

[0018] The inner cylinder 21 includes a plastic body 3 and a metal base 4. The metal base 4 is connected to the front end of the plastic body 3. A through groove 41 extending in the front-rear direction is provided on the side wall of the metal base 4. A protruding post 31 is provided at the front end of the plastic body 3. The protruding post 31 passes through the through groove 41 and protrudes from the side wall of the metal base 4 to form a limiting rib 212.

[0019] The plastic body 3 has a connecting post 32 protruding from its front end, and the metal base 4 has a connecting groove 42 at its rear end that engages with the connecting post 32. The metal base 4 has a mounting groove 43 at its front end, and the bottom of the mounting groove 43 has a through hole 44 that communicates with the connecting groove 42. After the connecting post 32 is inserted into the connecting groove 42, the two are fixed together by fasteners passing through the through hole.

[0020] A gap is provided between the rear end of the metal base 4 and the front end of the plastic body 3, and a heat dissipation hole 221 communicating with the gap is provided on the front side wall of the outer cylinder 22. The mounting groove 43 is used to install the light-emitting component 44, and the metal base 4 serves to dissipate heat.

[0021] This utility model of a focusing flashlight has a limiting rib 212 and a limiting groove 12 between the mating part 211 of the lamp body 2 and the lamp head 1. The limiting rib 212 and the limiting groove 12 slide axially and limit circumferentially, which can prevent the lamp head 1 from rotating circumferentially when the lamp head 1 is stretched during the focusing operation, and avoid the lamp head 1 from becoming mismatched with the shape of the lamp body 2 after rotation. For example, in this case, the octagons of the lamp head 1 and the lamp body 2 correspond, and there will be no mismatch due to stretching the lamp head 1.

Claims

1. A focusing flashlight, comprising a lamp head (1) and a lamp body (2), wherein the lamp body (2) has a mating part (211) at its front end, the lamp head (1) is sleeved on the mating part (211) and slides in the front-back direction, and the lamp head (1) has a lens (11) at its front end, characterized in that: The outer wall of the mating part (211) is provided with a limiting rib (212), and the inner wall of the lamp head (1) is provided with a limiting groove (12). The limiting rib (212) and the limiting groove (12) extend in the front-back direction, and the limiting rib (212) is slidably connected in the limiting groove (12).

2. The focusing flashlight according to claim 1, characterized in that: The lamp body (2) includes an inner cylinder (21) and an outer cylinder (22). The outer cylinder (22) is fitted around the outer periphery of the inner cylinder (21). The mating part (211) is located at the front of the inner cylinder (21) and extends beyond the front end of the outer cylinder (22).

3. The focusing flashlight according to claim 2, characterized in that: The inner cylinder (21) includes a plastic body (3) and a metal base (4). The metal base (4) is connected to the front end of the plastic body (3). The side wall of the metal base (4) is provided with a through groove (41) extending in the front-rear direction. The front end of the plastic body (3) is provided with a protruding post (31). The protruding post (31) passes through the through groove (41) and protrudes from the side wall of the metal base (4) to form a limiting rib (212).

4. The focusing flashlight according to claim 3, characterized in that: The plastic body (3) has a connecting post (32) protruding from its front end, and the metal base (4) has a connecting groove (42) at its rear end that is inserted into the connecting post (32); the metal base (4) has an installation groove (43) at its front end, and the bottom of the installation groove (43) has a through hole (44) that communicates with the connecting groove (42).

5. The focusing flashlight according to claim 3, characterized in that: A gap is provided between the rear end of the metal base (4) and the front end of the plastic body (3), and a heat dissipation hole (221) is provided on the front side wall of the outer cylinder (22) that communicates with the gap.

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