A focusing flashlight structure

Abstract

The utility model discloses a focusing flashlight structure, comprising a barrel with an upper opening, characterized in that: an illumination component is arranged at the open end of the barrel, a focusing barrel that can move along its axial direction is sleeved on the barrel, a focusing lens is arranged on the focusing barrel at one end away from the barrel, and a locking component that can lock the focusing barrel to move relative to the barrel is arranged between the barrel and the focusing barrel. The focusing barrel is movably sleeved on the barrel to adjust the distance between the focusing lens and the illumination component, so as to achieve the adjustment of the illumination of the flashlight, and the relative displacement between the focusing barrel and the barrel is locked by the locking component, so as to ensure the stability of the focal length after the illumination component and the focusing lens are adjusted.

Description

Technical Field

[0001] The utility model particularly relates to a focusing flashlight structure. Background Art

[0002] A flashlight, or torch for short, is a handheld electronic lighting tool. As a commonly used lighting tool, most flashlights can adjust the focal length to meet the needs of different working environments, and focus is achieved by adjusting the relative position of the light source and the focus of secondary optical elements such as reflectors or lenses. However, after focusing, existing flashlights cannot well fix the adjusted distance between the light source and the lens; often when the flashlight is used after focusing, the distance between the light source and the lens will change due to shaking or other external forces, affecting the previous focusing effect.

[0003] For example, the comparative document 1 of the patent application number "201620760901.5" discloses a flashlight that is easy to focus, including a barrel, a barrel head with a lens disposed inside, a lamp holder with a light source disposed inside, and a focusing assembly, wherein the focusing assembly includes a rotating ring and a fixing part, wherein the outer wall of the fixing part is provided with a corrugated groove, the inner wall of the rotating ring is provided with a guide column, the rotating ring is sleeved on the outside of the fixing part, and one end of the guide column is placed in the corrugated groove. The barrel head reciprocates along the axial direction of the flashlight relative to the lamp holder to achieve focusing, so that the lamp holder does not need to have relative movement with the barrel, so the lamp holder and the barrel can be in close contact, ensuring that the lamp holder can transfer heat to the barrel in time for heat dissipation, and avoiding the problem that the temperature in the lamp holder is too high, affecting the life of the light source or limiting the use of high-power light sources.

[0004] Although the above-mentioned patent document has achieved the effects of good heat dissipation and easy focusing to a certain extent, the patent document still cannot ensure the stability of the adjusted distance between the light source and the lens after the focusing is completed. Utility Model Content

[0005] In view of the defects of the prior art mentioned above, the technical problem to be solved by the utility model is to provide a focusing flashlight structure.

[0006] A focusing flashlight structure comprises a barrel with an upper opening, an illumination component is arranged at the open end of the barrel, a focusing barrel which can move along its axial direction is sleeved on the barrel, a focusing lens is arranged at one end of the focusing barrel away from the barrel, and a locking component is arranged between the barrel and the focusing barrel which can lock the focusing barrel from moving relative to the barrel.

[0007] In one embodiment, the lighting component includes an LED lamp, and a limiting flange is provided on the inner side of the barrel body adjacent to its open end. The LED lamp is embedded in the open end of the barrel body and abuts against the limiting flange. The open end of the barrel body is threadedly connected to an annular cover plate, and the lamp beads of the LED lamp are correspondingly located in the inner ring area of ​​the annular cover plate.

[0008] In one embodiment, the outer circumference of the annular cover plate is provided with a first convex portion, the focusing tube has upper and lower openings, and the inner side of the lower opening of the focusing tube is provided with a second convex portion along the circumference thereof which can abut against the lower side of the first convex portion.

[0009] In one embodiment, a groove is formed inwardly along the circumference of the inner side of the second protrusion, and a friction pad capable of rubbing against the side wall of the barrel is embedded in the groove.

[0010] In one embodiment, the locking component includes a plurality of blocks and a pressure plate. A slot is formed through one side of the focusing barrel, and a plurality of blocks are rotatably arranged in the slot at evenly spaced intervals along the same vertical direction. A slot is concave along the circumference of the outer side of the annular cover plate or the outer side of the barrel body, and the lower ends of the plurality of blocks can be rotatably embedded in the slots respectively. A torsion spring is abutted at the rotational connection between the block and the slot, and the torsion spring is used to keep the lower end of the block in a connected state embedded in the slot. The pressure plate is arranged in the slot and can move back and forth along the depth direction of the slot, and one side of the pressure plate abuts against the upper ends of the plurality of blocks.

[0011] In one embodiment, the inner wall of the slot hole is provided with a plurality of flanges corresponding to the plurality of blocks, and the flanges are in one-to-one correspondence with one side of the block.

[0012] In one embodiment, L-shaped connecting rods are spaced apart on both sides of the upper end of the pressure plate, and one end of the L-shaped connecting rod movably contacts the inner wall of the focusing tube.

[0013] In one embodiment, a transmission connecting rod is hingedly connected between the plurality of clamping blocks.

[0014] In one embodiment, the friction pad is made of silicone material or rubber material.

[0015] In summary, the beneficial effects of the present invention compared with the prior art are as follows:

[0016] The utility model arranges a focusing tube movably on a tube body so as to adjust the distance between a focusing lens and an illuminating component to realize the adjustment illumination of a flashlight, and then locks the relative displacement between the focusing tube and the tube body through a locking component, thereby ensuring the stability of the rear focal length after adjustment between the illuminating component and the focusing lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1This is a schematic cross-sectional structure diagram of a focusing flashlight structure in one embodiment of the utility model;

[0018] Figure 2 In one embodiment of the utility model Figure 1 A magnified schematic diagram of point A;

[0019] Figure 3 The figure is a three-dimensional structural diagram of a focusing flashlight structure in one embodiment of the utility model. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods:

[0021] like Figures 1 to 3 The embodiment of the utility model shown preferably provides a focusing flashlight structure, including a barrel 1 with an upper opening, a lighting component 2 is provided at the open end of the barrel 1, a focusing barrel 3 movable along its axial direction is sleeved on the barrel 1, a focusing lens 4 is provided at one end of the focusing barrel 3 away from the barrel 1, and a locking component 5 is provided between the barrel 1 and the focusing barrel 3 for locking the focusing barrel 3 from moving relative to the barrel 1.

[0022] Specifically, the focusing tube is movably sleeved on the tube body so that the distance between the focusing lens and the lighting component can be adjusted to achieve the adjustment of the lighting of the flashlight, and then the locking component is used to lock the relative displacement between the focusing tube and the tube body, thereby ensuring the stability of the rear focal length adjustment between the lighting component and the focusing lens.

[0023] Further, the lighting component 2 includes an LED lamp 21, and a limiting flange 22 is provided on the inner side of the barrel 1 near its open end, and the LED lamp 21 is embedded and matched with the open end of the barrel 1 and abuts against the limiting flange 22. The open end of the barrel 1 is connected with an annular cover plate 23 by threads, and the lamp beads of the LED lamp 21 are correspondingly located in the inner ring area of ​​the annular cover plate 23. Specifically, the annular cover plate cooperates with the limiting flange to realize the installation, clamping and fixing of the LED lamp, and when the LED lamp needs to be disassembled and maintained, it is only necessary to disassemble and screw the annular cover plate.

[0024] Furthermore, a first convex portion 24 is protruded from the outer circumference of the annular cover plate 23, the focusing barrel 3 has upper and lower openings, and a second convex portion 25 that can abut against the lower side of the first convex portion 24 is provided along the circumference of the inner side of the lower opening of the focusing barrel 3. Specifically, the first convex portion of the annular cover plate abuts and cooperates with the second convex portion of the focusing barrel to achieve the maximum travel limit of the displacement of the focusing barrel relative to the barrel body.

[0025] Furthermore, a groove 26 is formed inside the second convex portion 25 along the circumference, and a friction pad 27 is embedded in the groove 26 to rub against the side wall of the barrel 1. Specifically, the friction pad is used to achieve damping movement of the relative displacement between the focusing barrel and the barrel, so as to avoid the problem that the two are too smooth and it is difficult to accurately adjust the focal length.

[0026] Furthermore, the locking member 5 includes a plurality of blocks 51 and a pressure plate 52. A slot 53 is formed through one side of the focusing tube 3. The plurality of blocks 51 are rotatably arranged in the slot 53 at uniform intervals along the same vertical direction. A slot 54 is concave along the circumference of the outer side of the annular cover plate 23 or the outer side of the barrel body 1. The lower ends of the plurality of blocks 51 can be rotatably embedded in the slot 54 respectively. A torsion spring is abutted at the rotational connection between the block 51 and the slot 53. The torsion spring is used to keep the lower end of the block 51 in a connected state embedded in the slot 54. The pressure plate 52 is arranged in the slot 53 and can move back and forth along the depth direction of the slot 53. One side of the pressure plate 52 abuts against the upper ends of the plurality of blocks 51.

[0027] Specifically, a plurality of vertically evenly distributed card blocks are respectively abutted against the card grooves on the outside of the annular cover plate or the outside of the barrel body by the force of the torsion spring to achieve locking and fixation of the relative displacement between the focusing barrel and the barrel body, thereby ensuring the stability of the focal length after adjustment. When the focusing barrel needs to be moved again to readjust the focal length, the user only needs to press the pressure plate to make the pressure plate abut against one end of the plurality of card blocks, causing the card blocks to flip out of the card grooves.

[0028] Furthermore, the inner wall of the slot 53 is provided with a plurality of flanges 55 corresponding to the plurality of clamping blocks 51, and the flanges 55 are respectively in contact with one side of the clamping blocks 51. Specifically, the flanges are used to limit the rotation of the clamping blocks.

[0029] Furthermore, L-shaped connecting rods 56 are arranged at intervals on both sides of the upper end of the pressing plate 52, and one end of the L-shaped connecting rod 56 movably contacts the inner wall of the focusing tube 3. Specifically, the L-shaped connecting rod is used to guide and limit the displacement of the pressing plate along the depth direction of the slot.

[0030] Furthermore, a transmission connecting rod 57 is hingedly connected between the plurality of blocks 51. Specifically, the transmission connecting rod is used to enable the plurality of blocks to rotate synchronously.

[0031] Furthermore, the friction pad 27 is made of silicone material or rubber material.

[0032] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and the description are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A focusing flashlight structure, comprising a barrel (1) with an upper opening, characterized in that: The open end of the barrel (1) is provided with an illumination component (2); a focusing barrel (3) which can move along its axial direction is sleeved on the barrel (1); a focusing lens (4) is provided at the end of the focusing barrel (3) which is located away from the barrel (1); and a locking component (5) which can lock the focusing barrel (3) from moving relative to the barrel (1) is provided between the barrel (1) and the focusing barrel (3).

2. The focusing flashlight structure according to claim 1, characterized in that: The lighting component (2) comprises an LED lamp (21); a limiting flange (22) is arranged on the inner side of the barrel (1) near its open end; the LED lamp (21) is embedded in the open end of the barrel (1) and contacts the limiting flange (22); the open end of the barrel (1) is connected to an annular cover plate (23) via threads; the lamp beads of the LED lamp (21) are correspondingly located in the inner ring area of ​​the annular cover plate (23).

3. The focusing flashlight structure according to claim 2, characterized in that: The outer peripheral side of the annular cover plate (23) is provided with a first convex portion (24); the focusing tube (3) has upper and lower openings; and the inner side of the lower opening of the focusing tube (3) is provided with a second convex portion (25) along the circumference thereof, which can abut against the lower side of the first convex portion (24).

4. The focusing flashlight structure according to claim 3, characterized in that: A groove (26) is formed on the inner side of the second convex portion (25) along the circumference, and a friction pad (27) is embedded in the groove (26) and can rub against the side wall of the barrel (1).

5. The focusing flashlight structure according to claim 2, characterized in that: The locking component (5) comprises a plurality of clamping blocks (51) and a pressure plate (52); a slot hole (53) is formed through one side of the focusing tube (3); a plurality of clamping blocks (51) are rotatably arranged in the slot hole (53) at evenly spaced intervals along the same vertical direction; a clamping groove (54) is concave along the circumference of the outer side of the annular cover plate (23) or the outer side of the barrel (1); the lower ends of the plurality of clamping blocks (51) can be rotatably embedded in the clamping groove (54) respectively; a torsion spring is abutted at a rotation connection between the clamping block (51) and the slot hole (53); the torsion spring is used to keep the lower end of the clamping block (51) in a connected state of being embedded in the clamping groove (54); the pressure plate (52) is arranged in the slot hole (53) and can reciprocate along the depth direction of the slot hole (53); one side of the pressure plate (52) abuts against the upper ends of the plurality of clamping blocks (51).

6. The focusing flashlight structure according to claim 5, characterized in that: The inner wall of the slot hole (53) is provided with a plurality of flanges (55) corresponding to the plurality of clamping blocks (51), and the flanges (55) are in one-to-one correspondence with one side of the clamping blocks (51).

7. The focusing flashlight structure according to claim 5, characterized in that: L-shaped connecting rods (56) are arranged at intervals on both sides of the upper end of the pressure plate (52), and one end of the L-shaped connecting rod (56) is movably in contact with the inner wall of the focusing tube (3).

8. The focusing flashlight structure according to claim 5, characterized in that: A transmission connecting rod (57) is hingedly connected between the plurality of clamping blocks (51).

9. The focusing flashlight structure according to claim 4, characterized in that: The friction pad (27) is made of silicone material or rubber material.

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