Portable head lamp lens assembly

Abstract

The utility model relates to the technical field of head lamps, in particular to a portable head lamp lens assembly which comprises a portable head lamp body, a forehead protector and an elastic bandage, the forehead protector is fixedly installed at the top end of the portable head lamp body, and an LED light source convenient-to-disassemble structure is arranged in front of the portable head lamp body. A head lamp lens assembly is arranged at the front end of the portable head lamp body, and two connecting rods are fixedly installed on the two sides of the portable head lamp body. According to the portable head lamp lens assembly, the connecting pipe can be screwed into the internal threads in a rotating mode, in this way, when an LED light source is damaged or the brightness is reduced, the connecting base can be directly held tightly, then the connecting pipe is rotated to be disassembled outside the internal threads, the LED light source does not need to be disassembled after the lens at the front end is disassembled, the operation steps and procedures of operators are reduced, and the working efficiency is improved. Time is saved, and the using effect of the portable head lamp lens assembly is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of headlights, in particular to a portable headlight lens assembly. Background Art

[0002] A headlamp, as the name implies, is a light worn on the head. It is a lighting tool that frees up both hands. When we walk at night, if we hold a flashlight, one hand will not be free. In this way, we will not be able to deal with unexpected situations in time. Therefore, a good headlamp is what we need when we walk at night. In the same way, wearing a headlamp can free up our hands to do more things.

[0003] For example, the authorization announcement number "CN203771062U" is named a portable headlamp. Although it saves electricity, has high illumination, uses a fixing buckle, and installs a compass inside the fixing buckle to fix the headlamp on the head, it is small in size, easy to use, convenient to operate, and low in cost. However, the existing portable headlamps need to use the LED light source after power is turned on to emit light. As the use time of the headlamp increases, the brightness of the light source will gradually weaken, and the LED light source also needs to be replaced frequently to ensure the brightness of the headlamp. However, since the lens is installed at the front end of the LED light source, the lens needs to be removed before each replacement of the LED light source, and then the inner LED light source needs to be replaced. This greatly increases the disassembly steps of the portable headlamp, wastes usage time and labor, and results in less than ideal use effect of the portable headlamp.

[0004] Since the lens assembly needs to be fixed at the front end of the headlamp, the lens assembly can gather light and increase brightness. Generally, lens assemblies on the market are made of transparent glass, which is relatively weak and fragile. When the headlamp is carried or used, the lens made of glass is very easy to be scratched or broken. Therefore, the lens assembly of the headlamp will cause more wear and tear when the portable headlamp is used, which greatly affects the increase in the use cost of the portable headlamp. Utility Model Content

[0005] The utility model aims to solve the problems of poor use effect and high use cost of a portable headlamp, and proposes a portable headlamp lens assembly.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A portable headlamp lens assembly is designed, comprising a portable headlamp body, a forehead protector and an elastic strap, wherein the forehead protector is fixedly mounted on the top of the portable headlamp body, an LED light source is provided in front of the portable headlamp body for easy disassembly, a headlamp lens assembly is provided at the front end of the portable headlamp body, two connecting rods are fixedly mounted on both sides of the portable headlamp body, two elastic straps are fixedly mounted on the outer sides of the two connecting rods, and the other ends of the two elastic straps are fixedly connected.

[0008] Preferably, the LED light source easy to disassemble structure includes an internal thread and a connecting pipe, the internal thread is fixedly installed on the front end of the portable headlamp body, the inner side of the internal thread is fixedly provided with a docking groove, the interior of the docking groove is fixedly provided with an LED light source, the connecting pipe is threadedly connected to the inner side of the internal thread, and the inner side of the connecting pipe is fixedly provided with a lighting cavity.

[0009] Preferably, the headlamp lens assembly includes a connecting seat and a lens body, the connecting seat is movably connected to the front end of the portable headlamp body, the rear side of the connecting seat is fixedly connected to one end of the connecting tube, a reflective layer is fixedly installed on the inner wall of the connecting seat, a support ring is movably installed on the inner front end of the connecting seat, and the lens body is fixedly installed on the front end of the support ring.

[0010] Preferably, a lens protection and disassembly structure is provided on the outer side of the connecting seat, and the lens protection and disassembly structure includes a slide groove and a positioning block. The two slide grooves are fixedly opened on both sides of the outer wall of the connecting seat. Two protrusions are slidably connected inside the two slide grooves. The bottom ends of the two protrusions are fixedly connected to the outer wall of the support ring. A rotating shaft is movably installed above the two protrusions. The other side of the two rotating shafts is rotatably connected to two positioning blocks. The inner sides of the two positioning blocks are threadedly connected with screws, and the ends of the two screws are threadedly connected to the connecting seat.

[0011] Preferably, the inner side of the reflective layer is arranged opposite to the two sides of the LED light source, and the front end of the LED light source is arranged opposite to the inner side of the support ring.

[0012] Preferably, the rear sides of the outer walls of the two protrusions are movably connected to both sides of the front end of the connecting seat, and the front end of the portable headlamp body is electrically connected to the LED light source.

[0013] The portable headlamp lens assembly proposed by the utility model has the beneficial effect that: the connecting tube can be rotated and screwed into the inner thread, so when the LED light source is damaged or the brightness decreases, the connecting seat can be directly grasped and the connecting tube can be rotated to be removed outside the inner thread, and there is no need to remove the front lens first and then the LED light source, which reduces the operating steps of the operator, saves time and improves the use effect of the portable headlamp lens assembly.

[0014] The protrusion can slide with the inner support ring into the slide groove for fixation. After the inner side of the protrusion fits the two sides of the connecting seat, the operator can manually flip the positioning blocks on both sides. The positioning blocks can be rotated ninety degrees along the rotating axis to fit the outer wall of the connecting seat. In this way, the screws will install the protrusion in front of the connecting seat. The detachable structure makes it easy to disassemble the lens assembly made of glass that is easily scratched and broken, and store or carry it separately, reducing the probability of damage to the lens assembly made of glass, thereby reducing the cost of using the portable headlamp lens assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0016] Figure 2 for Figure 1 A front cross-sectional schematic diagram of

[0017] Figure 3 for Figure 1 A side cross-sectional schematic diagram of

[0018] Figure 4 for Figure 3 Enlarged cross-sectional view of part A in the middle;

[0019] Figure 5 for Figure 3 Enlarged cross-sectional view of part B in the middle;

[0020] Figure 6 for Figure 2 Enlarged cross-sectional view of part C in the middle.

[0021] In the figure: 1. portable headlamp body, 2. forehead protector, 3. connecting rod, 4. elastic strap, 5. LED light source easy disassembly structure, 51. internal thread, 52. docking groove, 53. LED light source, 54. connecting pipe, 55. lighting cavity, 6. headlamp lens assembly, 61. connecting seat, 62. reflecting layer, 63. supporting ring, 64. lens body, 7. lens protection disassembly structure, 71. slide groove, 72. bump, 73. rotating shaft, 74. positioning block, 75. screw. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings:

[0023] Embodiment 1:

[0024] See also Figure 1-6: In the present embodiment, a portable headlamp lens assembly comprises a portable headlamp body 1, a forehead protector 2 and an elastic strap 4, the forehead protector 2 is fixedly mounted on the top of the portable headlamp body 1, the forehead protector 2 is made of a relatively soft cotton material with good sweat absorption effect, the forehead protector 2 is arranged on the rear side of the portable headlamp body 1 and can fit the forehead of the user after wearing the portable headlamp, an LED light source is arranged in front of the portable headlamp body 1 for facilitating disassembly structure 5, a headlamp lens assembly 6 is arranged at the front end of the portable headlamp body 1, two connecting rods 3 are fixedly mounted on both sides of the portable headlamp body 1, the connecting rods 3 are used to tie two elastic straps 4, two elastic straps 4 are fixedly mounted on the outer sides of the two connecting rods 3, the elastic straps 4 are made of natural rubber bands with good elasticity and can be stretched, the elastic straps 4 can be fixed on the top of the head of the wearer with the front end portable headlamp body 1, the elasticity of the elastic straps 4 can adapt to the head circumference of more wearers, and the other ends of the two elastic straps 4 are fixedly connected.

[0025] The LED light source easy disassembly structure 5 includes an internal thread 51 and a connecting pipe 54. The internal thread 51 is fixedly installed at the front end of the portable headlamp body 1. A docking groove 52 is fixedly provided on the inner side of the internal thread 51. The docking groove 52 is used to place the connecting pipe 54. When the portable headlamp is used normally, the connecting pipe 54 will be rotated and screwed into the inner side of the internal thread 51. In this way, when the LED light source 53 is damaged or the brightness decreases, the connecting seat 61 can be directly held and then the connecting pipe 54 can be rotated and removed from the outer side of the internal thread 51. This allows the LED light source 53 to be directly replaced without first removing the front lens and then removing the LED light source 53. The LED light source 53 is fixedly installed inside the docking groove 52. The connecting pipe 54 is threadedly connected to the inner side of the internal thread 51. A lighting cavity 55 is fixedly provided on the inner side of the connecting pipe 54. The lighting cavity 55 is used to radiate the brightness generated by the LED light source 53.

[0026] The docking groove 52 is used to accommodate the connecting tube 54. When the portable headlamp is used normally, the connecting tube 54 will be rotated and screwed into the internal thread 51. In this way, when the LED light source 53 is damaged or the brightness decreases, the connecting seat 61 can be directly grasped and the connecting tube 54 can be rotated to be removed from the outside of the internal thread 51. In this way, the LED light source 53 can be directly replaced without removing the front-end lens first and then removing the LED light source 53. This reduces the operating steps of the operator, saves time, and improves the use effect of the portable headlamp lens assembly.

[0027] The headlamp lens assembly 6 includes a connecting seat 61 and a lens body 64. The connecting seat 61 is movably connected to the front end of the portable headlamp body 1. The rear side of the connecting seat 61 is fixedly connected to one end of the connecting tube 54. A reflective layer 62 is fixedly installed on the inner wall of the connecting seat 61. The reflective layer 62 is made of silver-white electroplated aluminum foil material. The reflective layer 62 is evenly arranged on a circle of the inner wall of the connecting seat 61. When the LED light source 53 generates brightness, the light emitted to both sides will be refracted by the reflective layer 62 and then collected to the front end of the lens body 64. A support ring 63 is movably installed on the inner front end of the connecting seat 61. The support ring 63 plays a role in fixing and supporting the lens body 64. The lens body 64 is made of transparent convex lens glass, and can use the convex lens to collect the light emitted by the LED light source 53, and then improve the lighting brightness of the headlamp. The lens body 64 is fixedly installed on the front end of the support ring 63.

[0028] A lens protection disassembly structure 7 is provided on the outer side of the connecting seat 61. The lens protection disassembly structure 7 includes a slide groove 71 and a positioning block 74. The two slide grooves 71 are fixedly opened on both sides of the outer wall of the connecting seat 61. The two slide grooves 71 are internally slidably connected with two protrusions 72. The protrusions 72 can slide into the slide grooves 71 with the inner support ring 63 to be fixed. After the inner sides of the protrusions 72 are attached to the two sides of the connecting seat 61, the operator can manually flip the positioning blocks 74 on both sides. The positioning blocks 74 can be attached to the outer wall of the connecting seat 61 by rotating ninety degrees along the rotating shaft 73. The two protrusions 7 The bottom end of the support ring 63 is fixedly connected to the outer wall of the support ring 63, and the two protrusions 72 are movably installed with a rotating shaft 73 above. The other side of the two rotating shafts 73 is rotatably connected to two positioning blocks 74. The inner sides of the two positioning blocks 74 are threadedly connected with screws 75. After the positioning blocks 74 are turned over and fitted, the screws 75 are rotated and screwed into the inside of the positioning blocks 74. In this way, the screws 75 will install the protrusion 72 in front of the connecting seat 61. At this time, the support ring 63 is also installed at the front end of the connecting seat 61 with the front lens assembly 64, and the ends of the two screws 75 are threadedly connected to the connecting seat 61.

[0029] The protrusion 72 can slide the inner support ring 63 into the slide groove 71 for fixation. After the inner side of the protrusion 72 fits the two sides of the connecting seat 61, the operator can manually flip the positioning blocks 74 on both sides. The positioning blocks 74 can fit the outer wall of the connecting seat 61 by rotating ninety degrees along the rotating shaft 73. After the positioning blocks 74 complete the flipping and fitting work, the screws 75 are rotated and screwed into the positioning blocks 74. In this way, the screws 75 will install the protrusion 72 in front of the connecting seat 61. At this time, the support ring 63 is also installed at the front end of the connecting seat 61 with the front lens assembly 64. The detachable structure makes it easy to disassemble the lens assembly 64 made of glass that is easily scratched and broken, and store or carry it separately, thereby reducing the probability of damage to the lens assembly made of glass, thereby reducing the cost of using the portable headlamp lens assembly.

[0030] Working principle:

[0031] When using the portable headlamp lens assembly, first wear the portable headlamp body 1 on the user's forehead, and then install the prepared portable headlamp lens assembly on the front end of the portable headlamp body 1 for use:

[0032] Direct disassembly and replacement structure of LED light source of portable headlamp lens assembly:

[0033] The docking groove 52 is used to place the connecting tube 54. When the portable headlamp is used normally, the connecting tube 54 will be rotated and screwed into the inner thread 51. In this way, when the LED light source 53 is damaged or the brightness decreases, the connecting seat 61 can be directly held and the connecting tube 54 can be rotated and removed from the outer part of the inner thread 51. In this way, the LED light source 53 can be directly replaced without first removing the front lens and then removing the LED light source 53, which reduces the operation steps of the operator and saves time.

[0034] The lighting lens assembly of the portable headlamp lens assembly has the following functions:

[0035] The reflective layer 62 is made of silver-white electroplated aluminum foil material, and is evenly arranged on the inner wall of the connection seat 61. When the LED light source 53 generates brightness, the light emitted to both sides will be refracted by the reflective layer 62 and then gathered to the front lens body 64. A support ring 63 is movably installed at the front end of the connection seat 61. The support ring 63 plays a role in fixing and supporting the lens body 64. The lens body 64 is made of transparent convex lens glass, and can use the convex lens to gather the light emitted by the LED light source 53, thereby improving the illumination brightness of the headlight.

[0036] The lens of the portable headlamp lens assembly can be disassembled to reduce damage to the structure:

[0037] The inner support ring 63 can be slid into the slide groove 71 for fixation through the protrusion 72. After the inner side of the protrusion 72 fits the two sides of the connecting seat 61, the operator can manually flip the positioning blocks 74 on both sides. The positioning blocks 74 can fit the outer wall of the connecting seat 61 by rotating ninety degrees along the rotating shaft 73. After the positioning blocks 74 complete the flipping and fitting work, the screws 75 are rotated and screwed into the positioning blocks 74. In this way, the screws 75 will install the protrusion 72 in front of the connecting seat 61. At this time, the support ring 63 is also installed at the front end of the connecting seat 61 with the front lens assembly 64. The detachable structure makes it easy to remove the lens assembly 64 made of glass that is easily scratched and broken, so that it can be stored or carried extra.

[0038] Embodiment 2:

[0039] See also Figure 1-6: In the present embodiment, a portable headlamp lens assembly further includes an inner side of a reflective layer 62 arranged opposite to both sides of an LED light source 53, the reflective layer 62 can refract the light of the LED light source 53 and transmit it to the front lens assembly 64, thereby reducing light consumption and being more energy-efficient. The front end of the LED light source 53 is arranged opposite to the inner side of a support ring 63, the interior of the support ring 63 is hollow, and the refracted light can pass through the interior of the support ring 63 to illuminate the lens body 64 for light collection, thereby reducing light obstruction. The rear sides of the outer walls of the two protrusions 72 are movably connected to both sides of the front end of the connecting seat 61, the front end of the portable headlamp body 1 is electrically connected to the LED light source 53, and a power supply structure is provided inside the portable headlamp body 1, which can supply power to the LED light source 53 to illuminate.

[0040] Working principle:

[0041] The light from the LED light source 53 can be refracted through the reflective layer 62 and transmitted to the front end lens assembly 64, thereby reducing light consumption and being more energy-efficient. The front end of the LED light source 53 is arranged opposite to the inner side of the support ring 63, and the interior of the support ring 63 is hollow. The refracted light can pass through the interior of the support ring 63 to illuminate the lens body 64 for light collection, thereby reducing obstruction to the light. The front end of the portable headlamp body 1 is electrically connected to the LED light source 53, and a power supply structure is provided inside the portable headlamp body 1, which can supply power to the LED light source 53 to illuminate.

[0042] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A portable headlamp lens assembly, comprising a portable headlamp body (1), a forehead protector (2) and an elastic band (4), characterized in that: The forehead guard (2) is fixedly mounted on the top of the portable headlamp body (1); an LED light source is provided in front of the portable headlamp body (1) for facilitating disassembly structure (5); a headlamp lens assembly (6) is provided at the front end of the portable headlamp body (1); two connecting rods (3) are fixedly mounted on both sides of the portable headlamp body (1); two elastic straps (4) are fixedly mounted on the outer sides of the two connecting rods (3); and the other ends of the two elastic straps (4) are fixedly connected to each other.

2. A portable headlamp lens assembly according to claim 1, characterized in that: The LED light source easy-to-disassemble structure (5) comprises an internal thread (51) and a connecting pipe (54); the internal thread (51) is fixedly mounted on the front end of the portable headlamp body (1); a docking groove (52) is fixedly provided on the inner side of the internal thread (51); an LED light source (53) is fixedly installed inside the docking groove (52); the connecting pipe (54) is threadedly connected to the inner side of the internal thread (51); and a lighting cavity (55) is fixedly provided on the inner side of the connecting pipe (54).

3. The portable headlamp lens assembly according to claim 1, characterized in that: The headlamp lens assembly (6) comprises a connecting seat (61) and a lens body (64); the connecting seat (61) is movably connected to the front end of the portable headlamp body (1); the rear side of the connecting seat (61) is fixedly connected to one end of the connecting tube (54); a reflective layer (62) is fixedly installed on the inner wall of the connecting seat (61); a support ring (63) is movably installed on the inner front end of the connecting seat (61); and the lens body (64) is fixedly installed on the front end of the support ring (63).

4. A portable headlamp lens assembly according to claim 3, characterized in that: A lens protection disassembly structure (7) is provided on the outer side of the connecting seat (61), and the lens protection disassembly structure (7) comprises a slide groove (71) and a positioning block (74). The two slide grooves (71) are fixedly opened on both sides of the outer wall of the connecting seat (61). Two protrusions (72) are slidably connected inside the two slide grooves (71). The bottom ends of the two protrusions (72) are fixedly connected to the outer wall of the support ring (63). A rotating shaft (73) is movably installed above the two protrusions (72). The other sides of the two rotating shafts (73) are rotatably connected to two positioning blocks (74). The inner sides of the two positioning blocks (74) are threadedly connected with screws (75), and the ends of the two screws (75) are threadedly connected to the connecting seat (61).

5. The portable headlamp lens assembly according to claim 3, characterized in that: The inner side of the reflective layer (62) is arranged opposite to the two sides of the LED light source (53), and the front end of the LED light source (53) is arranged opposite to the inner side of the support ring (63).

6. The portable headlamp lens assembly according to claim 4, characterized in that: The rear sides of the outer walls of the two protrusions (72) are movably connected to the two sides of the front end of the connecting seat (61), and the front end of the portable headlamp body (1) is electrically connected to the LED light source (53).

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