CN115370978B

CN115370978B - Portable lighting device

Info

Publication number: CN115370978B
Application number: CN202211299174.3A
Authority: CN
Inventors: 曹海; 周红玉; 周造轩
Original assignee: Jiangsu Zhgc Photoelectricity Technology Co ltd
Current assignee: Jiangsu Zhgc Photoelectricity Technology Co ltd
Priority date: 2022-10-24
Filing date: 2022-10-24
Publication date: 2023-03-24
Anticipated expiration: 2042-10-24
Also published as: CN115370978A

Abstract

The invention belongs to the technical field of lamps and lanterns, and discloses a portable lighting device which comprises a supporting piece, a light-emitting piece, a connecting piece and a light reflecting piece, wherein the supporting piece is used for supporting the portable lighting device; the reflector comprises a total reflection surface and a diffuse reflection surface. According to the invention, the relative position of the light-emitting piece and the support piece is adjusted through the connecting piece, so that the illumination direction of the light-emitting piece is changed, the requirement for supplementing light to the local area of the face of a user is met, and the applicability of the portable illumination device is improved.

Description

Portable lighting device

Technical Field

The invention relates to the technical field of lamps, in particular to a portable lighting device.

Background

With the development of economy and the development of the public on the demand of cultural entertainment, the cosmetic mirror has become an on-demand product for a plurality of performance workers. In order to meet the requirement of performing workers on makeup, various types of portable cosmetic mirrors are provided on the market.

Traditional portable vanity mirror includes lens and light filling lamp, and the light filling lamp sets up on the lens along lens circumference. In the practical application, because of the position relatively fixed of lens and light filling lamp to the user of not being convenient for makes up the in-process, utilize the light filling lamp to carry out the light filling to its facial local area, and then make this portable vanity mirror's suitability not high.

Therefore, the above problems need to be solved.

Disclosure of Invention

The invention aims to provide a portable lighting device to solve the problem that the traditional portable cosmetic mirror is not high in applicability.

In order to achieve the purpose, the invention adopts the following technical scheme:

a portable lighting device, comprising:

a support for supporting the portable lighting device;

a light emitting member including a light emitting device for emitting light, the light emitting member being disposed on the support member;

the support piece and the luminous piece are connected through the connecting piece, and the relative position of the support piece and the luminous piece can be adjusted through the connecting piece; and

the reflecting piece is arranged on the connecting piece through a damping ball head so as to adjust the incident angle of the light received by the reflecting piece and emitted by the light-emitting piece;

the light reflecting piece comprises two surfaces, one is a total reflection surface, and the other is a diffuse reflection surface.

Preferably, the connector comprises:

the first damping rotating shaft is arranged on the supporting piece;

the second damping rotating shaft is arranged on the light-emitting piece; and

the two ends of the connecting plate are respectively connected with the first damping rotating shaft and the second damping rotating shaft, the angle between the connecting plate and the supporting piece is adjustable, and the angle between the connecting plate and the light-emitting piece is also adjustable.

Preferably, the light reflecting member includes:

the sliding rail is arranged along the direction of a preset straight line;

the sliding block is arranged on the sliding rail in a sliding manner along the linear direction of the sliding rail; and

the diffuse reflection surface and the total reflection surface are positioned on two opposite sides of the reflector; the reflective mirror is positioned on the sliding block.

Preferably, the support member includes:

a base;

the balancing weight is arranged inside the base;

one side of the protective shell is arranged in an open manner, the base is movably connected inside the protective shell, and the base moves along the depth direction of a protective shell cavity;

the first mounting block is arranged on one side, opposite to the bottom wall of the protective shell, of the base in a sliding manner;

the second mounting block is arranged on the bottom wall of the protective shell in a sliding mode, and the sliding direction of the second mounting block is consistent with that of the first mounting block;

one end of the first connecting arm is hinged with the first mounting block, and the other end of the first connecting arm is hinged with the bottom wall of the protective shell;

one end of the second connecting arm is hinged with the second mounting block, the other end of the second connecting arm is hinged with the base, and the second connecting arm is hinged with the middle part of the first connecting arm; and

and the buffer spring is used for connecting the first mounting block and the base between the hinged positions of the second connecting arms and/or connecting the second mounting block and the hinged positions of the first connecting arms on the bottom wall of the protective shell.

Preferably, the light emitting device includes:

a substrate mounted on the light emitting member;

the LED lamp beads are arranged and uniformly distributed on the substrate; and

and the heat dissipation assembly is used for dissipating heat of the light-emitting device.

Preferably, a mounting groove is formed in the light-emitting piece, the substrate is located in the mounting groove, and the LED lamp beads are lower than a notch of the mounting groove.

Preferably, the luminous member includes:

the second damping rotating shaft is positioned at one end of the fixed section;

the movable section is connected with one end, far away from the second damping rotating shaft, of the fixed section through a third damping rotating shaft, and the angle between the fixed section and the movable section is adjustable.

Preferably, the heat dissipation assembly includes:

the heat dissipation plate is detachably connected with the substrate; and

the fixed block sets up the heating panel deviates from one side of base plate, the fixed block with the mounting groove diapire is connected.

Preferably, the heat dissipation assembly further comprises a heat dissipation hole, the heat dissipation hole is formed in the light emitting member, and the heat dissipation hole is communicated with the mounting groove.

Preferably, the connecting plate is provided with a containing groove along the length direction thereof, and the slide rail is a slide way arranged on the side wall of the containing groove.

The invention has the beneficial effects that:

in the in-service use, fix portable lighting device at the assigned position earlier and open portable lighting device switch, the illuminating part is luminous, adjust the reflection of light piece angle earlier, so that the total reflection face is accurate user face, the relative position through connecting piece adjustment illuminating part and support piece afterwards, thereby adjust illuminating part direction of illumination, in order to satisfy the demand of carrying out the light filling to user face local area, thereby help promoting portable lighting device's suitability. In addition, this portable lighting device also can regard as the desk lamp to use in daily life, can adjust this portable lighting device's irradiation range according to the actual use scene, specifically, adjusts the illuminating part angle, utilizes diffuse reflection face to enlarge the illumination range of illuminating part thereby helps further promoting portable lighting device's suitability.

Drawings

FIG. 1 is a schematic diagram of a portable lighting device according to an embodiment of the present invention;

FIG. 2 is a schematic view of an embodiment of the portable lighting device of the present invention in a folded state;

FIG. 3 is a schematic structural view of a support member in an embodiment of the present invention;

FIG. 4 is a schematic view of an embodiment of the present invention in an extended illumination range state;

FIG. 5 is a schematic view of a reflector according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a light-emitting device according to an embodiment of the present invention;

FIG. 7 is a schematic view of a heat dissipation hole according to an embodiment of the present invention.

In the figure:

1. a support member; 11. a base; 12. a protective shell; 13. a first mounting block; 14. a second mounting block; 15. a first connecting arm; 16. a second connecting arm; 17. a buffer spring;

2. a light emitting member; 21. a light emitting device; 211. a substrate; 2111. a limiting block; 212. an LED lamp bead; 22. a lamp shade; 221. mounting grooves; 222. a fixed section; 223. an active segment; 224. a third damping rotating shaft; 23. a heat dissipation plate; 231. a limiting groove; 232. a fixed block; 24. heat dissipation holes;

3. a connecting member; 31. a first damping rotating shaft; 32. a second damping rotating shaft; 33. a connecting plate; 331. accommodating grooves;

4. a light reflecting member; 41. a slide rail; 42. a slider; 43. a reflective mirror; 44. damping bulb.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

Example (b):

referring to fig. 1, the present embodiment provides a portable lighting device, which includes a supporting member 1, a light emitting member 2, a connecting member 3, and a light reflecting member 4.

Referring to fig. 2, the support 1 is for supporting a portable lighting device. Support piece 1 includes base 11 and balancing weight (not marking in the figure), and the balancing weight setting is inside base 11 to make the weight of base 11 be greater than the sum of illuminating part 2 and connecting piece 3, thereby realize that portable lighting device's focus moves down, and then guarantee the stability when portable lighting device uses. It is noted that the portable lighting device further comprises a power source disposed within the base 11 and configured to supply power to the portable lighting device.

In order to avoid damage of the portable lighting device by falling from a high place, referring to fig. 2 and 3, the support 1 further comprises a protective shell 12, a first mounting block 13, a second mounting block 14, a first connecting arm 15 and a second connecting arm 16. Protecting crust 12 is cuboid cavity form setting, and protecting crust 12 one side is and opens the setting, and 11 swing joint of base is inside protecting crust 12, and base 11 moves along 12 cavity depth directions of protecting crust. Specifically, the protective casing 12 has a limiting groove 231 formed along the height direction thereof, and the base 11 is slidably fitted in the limiting groove 231.

The first mounting block 13 is arranged on one side of the base 11 opposite to the bottom wall of the protective shell 12 in a sliding mode, the second mounting block 14 is arranged on the bottom wall of the protective shell 12 in a sliding mode, and the sliding direction of the second mounting block 14 is consistent with that of the second mounting block 14. Particularly, the spout has all been seted up along 11 length direction of base on one side of the relative 12 diapire of protective housing of base 11 and the 12 diapires of protective housing, and two spout notches set up relatively, and first installation piece 13 slides and inlays in locating the spout on base 11, and second installation piece 14 slides and inlays in locating the spout on 12 diapires of protective housing. One end of the first connecting arm 15 is hinged with the first mounting block 13, and the other end of the first connecting arm 15 is hinged with the bottom wall of the protective shell 12; one end of the second connecting arm 16 is hinged to the second mounting block 14, the other end of the second connecting arm 16 is hinged to the base 11, and the middle parts of the second connecting arm 16 and the first connecting arm 15 are hinged to each other. The hinged part of the first mounting block 13 and the second connecting arm 16 on the base 11 and/or the hinged part of the second mounting block 14 and the first connecting arm 15 on the bottom wall of the protective shell 12 are connected through a buffer spring 17. In this embodiment, two buffer springs 17 are provided, and the two buffer springs 17 are respectively disposed on the bottom wall of the protective shell 12 and the bottom wall of the protective shell 12 opposite to the base 11. One end of one of the buffer springs 17 is connected with the first mounting block 13, and the other end is connected with the hinged part of the second connecting arm 16 on the base 11. One end of the other buffer spring 17 is connected with the second mounting block 14, and the other end is connected with the hinged position of the first connecting arm 15 on the bottom wall of the protective shell 12.

Based on the above, when the portable lighting device accidentally drops, the portable lighting device contacts with the ground, protective shell 12 can cushion partial impact force, simultaneously because of the effect of inertia, base 11 can extrude first linking arm 15 and second linking arm 16 downwards, under the effect of base 11, the angle between first linking arm 15 and second linking arm 16 then can increase, simultaneously because second linking arm 16 articulated department on first installation piece 13 and base 11, all be connected with buffer spring 17 between first linking arm 15 articulated department on second installation piece 14 and protective shell 12 diapire, at the in-process that first linking arm 15 and second linking arm 16 end were kept away from and under buffer spring 17's the effect, can further cushion partial impact force, avoid portable lighting device from the eminence directly damaging when falling and damaging.

It is understood that in other embodiments, the buffering spring 17 may be provided as a single piece, and one end of the buffering spring 17 is connected to the first mounting block 13 and the other end is connected to the hinge of the second connecting arm 16 on the base 11, or one end of the buffering spring 17 is connected to the second mounting block 14 and the other end is connected to the hinge of the first connecting arm 15 on the bottom wall of the protection housing 12, so as to help reduce the production cost of the portable lighting device.

Referring to fig. 2 and 4, the connecting member 3 includes a first damping rotating shaft 31, a second damping rotating shaft 32, and a connecting plate 33. The first damping rotating shaft 31 is arranged on the supporting piece 1, the second damping rotating shaft 32 is arranged on the luminous piece 2, two ends of the connecting plate 33 are respectively connected with the first damping rotating shaft 31 and the second damping rotating shaft 32, the angle between the connecting plate 33 and the supporting piece 1 is adjustable, and the angle between the connecting plate 33 and the luminous piece 2 is also adjustable. In this embodiment, the first damping rotating shaft 31 and the second damping rotating shaft 32 are both in the prior art, and both can rotate to any angle to realize self-locking. One connection end of the first damping rotation shaft 31 is installed at one end of the base 11 by a bolt, the other connection end of the first damping rotation shaft 31 is connected with one end of the connection plate 33 by a bolt, and the rotation direction of the first damping rotation shaft 31 is consistent with the width direction of the base 11. One connecting end of the second damping rotating shaft 32 is installed at one end of the lamp shade 22 through a bolt, the other connecting end of the second damping rotating shaft 32 is installed at the other end of the connecting plate 33 far away from the first damping rotating shaft 31 through a bolt, and the rotating direction of the second damping rotating shaft 32 is consistent with that of the first damping rotating shaft 31.

It can be understood that, the both ends of connecting plate 33 are passed through first damping pivot 31 and second damping pivot 32 and are linked to each other with lamp shade 22 and base 11 respectively, thereby realize that portable lighting device adjusts the shape with the zigzag structure, through with base 11, it is articulated mutually through the damping pivot between connecting plate 33 and the lamp shade 22, be convenient for when using, can overturn adjustment base 11 at will, angle between connecting plate 33 and the lamp shade 22, thereby realized the arbitrary regulation of angle, and the damping pivot has realized the relatively fixed of arbitrary angle, thereby make things convenient for portable lighting device to use with arbitrary form, thereby realize the change of illumination zone.

Of course, the portable lighting device can be used as a table lamp in daily life, and the irradiation range of the portable lighting device can be adjusted according to actual use scenes. When only a small range needs to be irradiated, the lampshade 22 can be pulled upwards, so that the included angles between the lampshade 22 and the connecting plate 33 and between the connecting plate 33 and the base 11 are all acute angles, and the small irradiation range of the luminous element 2 can be ensured. When a normal irradiation range is required, the lampshade 22 can be continuously pulled upwards, so that the lampshade 22, the connecting plate 33 and the base 11 are in a right-angle state, and the irradiation range of the light-emitting member 2 can be enlarged. When the portable lighting device is used in a room and the light inside the room is dark, the lampshade 22 can be turned upwards, so that the included angle between the lampshade 22 and the connecting plate 33 is an obtuse angle, and the irradiation range of the light-emitting part 2 is further increased.

Referring to fig. 1 and 5, the reflector 4 is disposed on the connecting member 3 through a damping ball 44 to adjust an incident angle of light received by the reflector 2; the reflector 4 comprises two surfaces, one being a fully reflective surface and the other being a diffusely reflective surface. Specifically, the light reflecting member 4 includes a slide rail 41, a slider 42, and a reflective mirror 43, the slide rail 41 is disposed along a preset linear direction (a length direction of the base 11), and the slider 42 is slidably disposed on the slide rail 41 along the linear direction of the slide rail 41. The reflector 4 includes a diffuse reflection surface and a total reflection surface, which are located at opposite sides of the reflector 43, and the reflector 43 is located on the slider 42.

In order to improve the convenience of storing and transporting the portable lighting device, with reference to fig. 5, the connecting plate 33 is provided with a receiving groove 331 along the length direction thereof, the sliding rail 41 is a sliding track formed on the side wall of the receiving groove 331, and two sliding rails 41 are provided, and two sliding rails 41 are respectively located on the two side walls of the receiving groove 331 along the length direction thereof. The sliding block 42 is arranged in a long strip shape, and two ends of the sliding block 42 are respectively embedded in the sliding rails 41 on two sides in a sliding manner. The mirror 43 is arranged on the slider 42 via a damping bulb 44. It can be understood that, when the portable lighting device needs to be stored or transported, the rotatable reflective mirror 43 is stored in the storage slot 331, and then the lampshade 22 and the connecting plate 33 are sequentially rotated, so that the base 11, the connecting plate 33 and the lampshade 22 are combined together, and the size of the base 11, the connecting plate 33 and the lampshade 22 is the same, so that the size of the portable lighting device is reduced to the greatest extent, the size of the portable lighting device is reduced, and the convenience for storing and transporting the portable lighting device is improved.

Based on the above, it can be understood that, when makeup is performed using the portable lighting device, the position of the reflective mirror 43 is first adjusted along the length direction of the slide rail 41, and then the angle of the reflective mirror 43 is adjusted again so that the total reflection surface of the reflective mirror 43 is directed to the user's face, and the light emitted from the light emitting member 2 is angle-adjusted by the total reflection surface of the reflective mirror 43 to change the irradiation angle of the portable lighting device.

When the portable lighting device is used as a desk lamp, the illumination range of the portable lighting device still cannot meet the use requirement, and the illumination range of the light-emitting piece 2 can be further increased. The position of the reflective mirror 43 is first adjusted along the length direction of the slide rail 41, and then the angle of the reflective mirror 43 is adjusted again, and the light emitted from the light emitting member 2 is adjusted to diffuse light by the diffuse reflection surface of the reflective mirror 43, thereby facilitating the increase of the irradiation range of the light emitting member 2 under the cooperation of the reflective mirror 43.

Referring to fig. 1 and 4, the luminous member 2 includes a luminous device 21 for emitting light, and the luminous member 2 is disposed on the support member 1. In this embodiment, the light emitting device 21 is used as a light source of the portable lighting device, and the light emitting device 21 includes a substrate 211 and an LED lamp bead 212. The LED lamp beads 212 are provided with a plurality of LED lamp beads 212, and the LED lamp beads 212 are uniformly distributed on the substrate 211. The substrate 211 is mounted on the illuminating member 2, the illuminating member 2 includes a fixed segment 222 and a movable segment 223, and the second damping rotating shaft 32 is located at one end of the fixed segment 222; the movable section 223 and one end of the fixed section 222 far away from the second damping rotating shaft 32 are connected through a third damping rotating shaft 224, and the angle between the fixed section 222 and the movable section 223 is adjustable. The last mounting groove 221 of having seted up of illuminating part 2, base plate 211 are located mounting groove 221, and a plurality of LED lamp pearl 212 all is less than the mounting groove 221 notch. Specifically, the fixed section 222 and the movable section 223 are combined to form the lampshade 22, the mounting grooves 221 are formed in the fixed section 222 and the movable section 223, the fixed section 222 is communicated with the mounting grooves 221 in the movable section 223, and in this embodiment, the light emitting devices 21 are mounted in the mounting grooves 221 in the fixed section 222 and the movable section 223. In practical applications, when the portable lighting device is used for making up, the movable section 223 can be rotated to adjust the illumination angle of the light emitting device 21 thereon, so that the face of the user can be supplemented with light better. Of course, light can also be supplemented to a local area of the face of the user.

It can be understood that, through a plurality of LED lamp beads 212 evenly distributed on the lampshade 22, on one hand, the illumination brightness of the portable lighting device is improved, and on the other hand, the illumination uniformity of the portable lighting device can be ensured.

In addition, in order to ensure good heat dissipation performance during the use of the portable lighting device, referring to fig. 6 and 7, the light-emitting device 21 further includes a heat dissipation assembly. Radiating component includes heating panel 23 and fixed block 232, and heating panel 23 can dismantle with base plate 211 and be connected, and fixed block 232 sets up in one side that heating panel 23 deviates from base plate 211, and fixed block 232 is connected with mounting groove 221 diapire. In this embodiment, the upper surface of the heat dissipation plate 23 is provided with a limiting groove 231, the lower surface of the substrate 211 is integrally formed with a limiting block 2111, and the limiting block 2111 is matched with the limiting groove 231 and is T-shaped. Therefore, when the heat dissipation plate is used, the heat dissipation plate 23 and the substrate 211 can be detachably assembled through the matching effect of the limiting groove 231 and the limiting block 2111, and one component can be conveniently and independently replaced in the later period. The two fixing blocks 232 are provided, and the two fixing blocks 232 are integrally formed on the lower surface of the heat dissipation plate 23. Through setting up fixed block 232 to make and form the cavity between the lower surface of heating panel 23 and the mounting groove 221 roof, and then can strengthen the radiating effect.

Meanwhile, in order to further improve the heat dissipation effect of the portable lighting device, referring to fig. 4 and 6, the heat dissipation assembly further includes a heat dissipation hole 24, the heat dissipation hole 24 is opened on the light emitting member 2 (the lamp cover 22), and the heat dissipation hole 24 is communicated with the mounting groove 221, that is, one end of the heat dissipation hole 24 is communicated with the cavity, and the other end of the heat dissipation hole 24 is communicated with the outside of the lamp cover 22, so that under the cooperation effect of the heat dissipation hole 24, the hot air inside the mounting groove 221 can be dissipated to the outside. In this embodiment, louvre 24 has all been seted up to lamp shade 22's both sides wall to be convenient for increase the air convection when using, make the air intake to disperse the heat that produces LED lamp pearl 212 in the mounting groove 221, avoid LED lamp pearl 212 long-time work to produce the problem emergence that the heat leads to damaging or life-span to reduce.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A portable lighting device, comprising:

a support (1) for supporting a portable lighting device;

a luminous element (2) comprising a luminous device (21) for emitting light, said luminous element (2) being arranged on said support element (1);

the support piece (1) is connected with the luminous piece (2) through the connecting piece (3), and the relative position of the support piece (1) and the luminous piece (2) can be adjusted through the connecting piece (3); and

the light reflecting piece (4) is arranged on the connecting piece (3) through a damping ball head (44) so as to adjust the incident angle of the light received by the light reflecting piece (4) and emitted by the light emitting piece (2);

the reflecting piece (4) comprises two surfaces, one is a total reflection surface, and the other is a diffuse reflection surface;

the connector (3) comprises:

a first damping spindle (31) arranged on the support (1);

a second damping spindle (32) arranged on the luminous element (2); and

the two ends of the connecting plate (33) are respectively connected with the first damping rotating shaft (31) and the second damping rotating shaft (32), the angle between the connecting plate (33) and the supporting piece (1) is adjustable, and the angle between the connecting plate (33) and the luminous piece (2) is also adjustable;

the luminous element (2) comprises:

a fixed section (222), the second damping spindle (32) being located at one end of the fixed section (222);

the movable section (223) is connected with one end, far away from the second damping rotating shaft (32), of the fixed section (222) through a third damping rotating shaft (224), and the angle between the fixed section (222) and the movable section (223) is adjustable.

2. A portable lighting device according to claim 1, wherein said light reflector (4) comprises:

a slide rail (41) arranged along a preset linear direction;

the sliding block (42) is arranged on the sliding rail (41) in a sliding manner along the linear direction of the sliding rail (41); and

a reflector (43), said diffuse reflection surface and said total reflection surface being located on opposite sides of said reflector (43); the reflective mirror (43) is positioned on the sliding block (42).

3. A portable lighting device according to claim 1, characterized in that said support (1) comprises:

a base (11);

the balancing weight is arranged inside the base (11);

the device comprises a protective shell (12), wherein one side of the protective shell (12) is arranged in an open mode, a base (11) is movably connected inside the protective shell (12), and the base (11) moves along the depth direction of a cavity of the protective shell (12);

the first mounting block (13), the first mounting block (13) is arranged on one side of the base (11) opposite to the bottom wall of the protective shell (12) in a sliding manner;

the second mounting block (14) is arranged on the bottom wall of the protective shell (12) in a sliding mode, and the sliding direction of the second mounting block (14) is consistent with that of the first mounting block (13);

one end of the first connecting arm (15) is hinged with the first mounting block (13), and the other end of the first connecting arm (15) is hinged with the bottom wall of the protective shell (12);

one end of the second connecting arm (16) is hinged to the second mounting block (14), the other end of the second connecting arm (16) is hinged to the base (11), and the second connecting arm (16) is hinged to the middle of the first connecting arm (15); and

the buffer spring (17) is arranged between the hinged positions of the second connecting arms (16) on the first mounting block (13) and the base (11) and/or between the hinged positions of the first connecting arms (15) on the bottom wall of the protective shell (12) and the second mounting block (14) and the base, and the buffer spring (17) is connected.

4. A portable lighting device according to claim 1, characterized in that said light emitting means (21) comprises:

a substrate (211) mounted on the light emitting member (2);

the LED lamp beads (212), the LED lamp beads (212) are provided with a plurality of LED lamp beads, and the LED lamp beads (212) are uniformly distributed on the substrate (211); and

and the heat dissipation assembly is used for dissipating heat of the light-emitting device (21).

5. The portable lighting device of claim 4, wherein the light emitting element (2) has a mounting groove (221), the substrate (211) is disposed in the mounting groove (221), and the plurality of LED beads (212) are lower than the opening of the mounting groove (221).

6. The portable lighting device of claim 5, wherein said heat sink assembly comprises:

the heat dissipation plate (23), the heat dissipation plate (23) is detachably connected with the substrate (211); and

fixed block (232), set up and be in heating panel (23) deviates from one side of base plate (211), fixed block (232) with mounting groove (221) diapire is connected.

7. The portable lighting device according to claim 5, wherein the heat dissipation assembly further comprises a heat dissipation hole (24), the heat dissipation hole (24) is opened on the light emitting member (2), and the heat dissipation hole (24) is communicated with the mounting groove (221).

8. The portable lighting device according to claim 2, wherein the connecting plate (33) has a receiving slot (331) along a length direction thereof, and the sliding rail (41) is a sliding track formed on a side wall of the receiving slot (331).