Patent Description:
At present, the height of the lighting device is usually adjusted through a parallel four-bar structure or a hose structure, which generally has the problems of a small moving range, troublesome assembly and use, large volume, and inconvenient storage and carrying. In addition, the angle of the lighting device can only be adjusted in the vertical direction, and the range of adjustment is very limited, which is impossible to adjust from a larger angle. The design of the existing lighting device results in a poor user's experience.

The US patent application publication no. <CIT> discloses a stand light. The stand light includes a telescoping body having a main center shaft, an extension pole extendable out of the main center shaft, and a sleeve movably supported on the main center shaft. A head assembly is supported by the extension pole and includes a light source. A plurality of legs is pivotally coupled to the body and is movable with the sleeve from a collapsed position to an extended position, in which distal ends of the plurality of legs are moved away from the body. When the plurality of legs is in the collapsed position, side portions of the plurality of legs come together to form a handle configured to be grasped by a user.

The US patent application publication no. <CIT> discloses a site light. The site light includes a body, an arm coupled to the body having an adjustable arm length, a light assembly coupled to the arm opposite the body, and a drive mechanism with a crank arm rotatable about a first axis. Rotating the crank arm in a first direction causes the arm length to increase. Rotating the crank arm in a second direction causes the arm length to decrease. The drive mechanism is adjustable between a first configuration, where the crank arm can only rotate in the first direction, and a second configuration, where the crank arm can be rotated in the first direction and the second direction.

The EP application publication no. <CIT> discloses a collapsible lighting device. The collapsible lighting device has a main body surrounded by a collar whose position is adjustable along the longitudinal axis of the main body. Pivotally connected or hinged legs are attached to the collar and to the main body with struts. When the collar is on one position, the legs deploy outward from the main body to the extent permitted by the struts, thereby allowing the legs to support the collapsible lighting device upright. A lamp head is attached to a member which telescope from the main body. When deployed, the lamp head can be switched on to provide illumination. When the collar is another position, the legs are drawn in toward the main body to form a cylindrical shape. The lamp head can be positioned so that when the telescoping member is retracted into the main body, the collar surrounds the exterior of the lamp head, thus protecting the lamp head for transport. The overall cylindrical shape of the lighting device in the collapsed position facilitates transport, for example using a strap to carry the device on one's back.

There is still a need for a lighting device with efficient electrical connections, while also providing a compact and integrated construction enabling efficient placement and connection of electrical components.

The present disclosure provides a lighting device, which solves the technical problems of the existing lighting device, such as small height and angle adjustment ranges and inconvenient use and carrying.

The present disclosure provides a lighting device, which includes:.

In conclusion, the lighting device includes the base assembly provided therein with the circuit board; the telescopic assembly provided with the fixed end and the free end that are arranged oppositely, where the fixed end is connected to the base assembly; and the lighting assembly rotatably connected to the free end to rotate relative to the free end, where the lighting assembly is provided with the lighting element electrically connected to the circuit board. The extension and retraction of the lighting assembly and the lighting element are realized through the telescopic assembly, such that the height adjustment of the lighting device can be realized in a large range, which is convenient for storage and carrying. In an embodiment, since the lighting assembly is movably connected to the free end, the lighting assembly is rotatable axially and radially along the free end. That is, the angle of the lighting assembly can be adjusted in the horizontal and vertical directions to meet different lighting angles, thereby improving the user's experience.

To describe the technical solutions in the embodiments or exemplary description of the present disclosure more clearly, the drawings required for the embodiments or exemplary description are briefly described below. The drawings in the following description show merely some embodiments of the present disclosure, and a person of ordinary skill in the art may still derive other drawings from these drawings without creative efforts.

The implementation of the objective, functional characteristics, and advantages of the present disclosure will be further described below with reference to the embodiments and the drawings.

The following clearly and completely describes the technical solutions in the embodiments of the present disclosure with reference to the drawings in the embodiments of the present disclosure. The described embodiments are merely a part, rather than all, of the embodiments of the present disclosure.

It should be noted that all the directional indications (such as upper, lower, left, right, front, and rear) in the embodiments of the present disclosure are merely used to explain relative position relationships or movement positions of the components in a specific orientation (as shown in the figures). If the specific orientation changes, the directional indication also changes accordingly.

Further, the technical solutions of the embodiments may be combined with each other on the basis that the combination is implementable by those of ordinary skill in the art.

The present disclosure provides a lighting device.

As shown in <FIG>, the lighting device includes base assembly <NUM> provided therein with circuit board <NUM>; telescopic assembly <NUM> provided with fixed end <NUM> and free end <NUM> that are arranged oppositely, where the fixed end <NUM> is connected to the base assembly <NUM>; and lighting assembly <NUM> rotatably connected to the free end <NUM> to rotate axially and radially along the free end <NUM>, where the lighting assembly <NUM> is provided with lighting element <NUM> electrically connected to the circuit board <NUM>.

The base assembly <NUM> may be placed on the ground or adsorbed to an iron article. The base assembly <NUM> may also be adsorbed in a region at a high position such as an iron ceiling to realize a different use scenario. The use scenarios of the lighting device are not limited herein.

The telescopic assembly <NUM> can adapt to lighting scenarios of different heights. The length of the telescopic assembly <NUM> may also be appropriately increased according to different lighting scenarios. To store the lighting device, the telescopic assembly <NUM> is retracted such that the lighting assembly <NUM> and the base assembly <NUM> can be stored together, thereby reducing the occupied space of the lighting device and facilitating the carrying of the lighting device.

The free end <NUM> is an end that can be stretched or contracted, and the fixed end <NUM> is an end that is configured to fix the telescopic assembly <NUM>. When the telescopic assembly <NUM> is in a storage state, the free end <NUM> is stored in the fixed end <NUM>. When the free end <NUM> is pulled out from the fixed end <NUM>, the telescopic assembly <NUM> is in an extended state. Of course, in this embodiment, the telescopic assembly <NUM> further has a fully extended or partially extended state, which can be set according to the actual lighting scenario of the lighting device and is not limited herein.

Further, the lighting assembly <NUM> is provided on the free end <NUM> of the telescopic assembly <NUM>. The lighting assembly <NUM> can move in a direction away from the fixed end <NUM> with the extension of the free end <NUM>, thereby increasing the height of the lighting assembly <NUM>. Alternatively, the lighting assembly <NUM> can move in a direction toward the fixed end <NUM> with the retraction of the free end <NUM>, thereby reducing the height of the lighting assembly <NUM>. In addition, since the lighting assembly <NUM> is rotatably connected to the free end <NUM>, the lighting assembly <NUM> is rotatable axially and radially along the free end <NUM>. Therefore, the lighting element <NUM> is adjustable in height and is rotatable axially and radially along the free end <NUM>.

The lighting element <NUM> is a light-emitting plate, which may include a plurality of light-emitting diode (LED) lamps in parallel and/or in series.

In the technical solution provided by the present disclosure, the extension and retraction of the lighting assembly <NUM> and the lighting element <NUM> are realized through the telescopic assembly <NUM>, such that the height adjustment of the lighting device can be realized in a large range, which is convenient for storage and carrying. Since the lighting assembly <NUM> is movably connected to the free end <NUM>, the lighting assembly <NUM> is rotatable axially and radially along the free end <NUM>. That is, the angle of the lighting assembly <NUM> can be adjusted in the horizontal and vertical directions to meet different lighting angles, thereby improving the user's experience.

In this embodiment, the base assembly <NUM> includes base <NUM>, and main body <NUM> and guide rail element <NUM> both of which are hollow-through. The guide rail element <NUM> has one end connected to the main body <NUM> and the other end connected to the base <NUM>. An inner space of the main body <NUM> is communicated with an inner space of the guide rail element <NUM>. The circuit board <NUM> is provided in the main body <NUM>. The fixed end <NUM> passes through the inner space of the main body <NUM> and the inner space of the guide rail element <NUM> in sequence and is connected to the base <NUM>.

Therefore, the base assembly <NUM> may be placed on the ground or adsorbed to an iron article to realize a different use scenario, which is not limited herein.

The main body <NUM> is separated from the base <NUM> through the guide rail element <NUM>. In this embodiment, in order to fix the fixed end <NUM> of the telescopic assembly <NUM>, the main body <NUM> and the guide rail element <NUM> are arranged in a hollow-through structure, and the inner space of the main body <NUM> is coaxial with the inner space of the guide rail element <NUM>. The fixing end <NUM> can directly pass through the inner space of the main body <NUM> and the inner space of the guide rail element <NUM> and be fixed to the base <NUM>. In this way, the telescopic assembly <NUM> can be stored in the inner space of the main body <NUM> and the inner space of the guide rail element <NUM>, thereby reducing the space occupied by the telescopic assembly <NUM>.

The circuit board <NUM> is provided in the main body <NUM>. Of course, in a non-claimed embodiment, the circuit board <NUM> may also be provided in the base <NUM> to omit the main body <NUM>, thereby saving costs.

Optionally, the guide rail element <NUM> may be connected and combined with the main body <NUM> and the base <NUM> by one or more means such as clips, bolts, screws, rivets, and viscous materials, which is not limited herein.

Further, the lighting device further includes spring wire <NUM> provided with one end electrically connected to the circuit board <NUM>; and first connector <NUM> and second connector <NUM> that are electrically connected. The first connector <NUM> and the second connector <NUM> are arranged inside the telescopic assembly <NUM> at the free end <NUM>. The other end of the spring wire <NUM> passes through a gap between the telescopic assembly <NUM> and the guide rail element <NUM>, then bends and extends into the telescopic assembly <NUM>, and is electrically connected to the first connector <NUM>. The second connector <NUM> is electrically connected to the lighting element <NUM>.

The maximum outer diameter of the telescopic assembly <NUM> is smaller than an inner diameter of the guide rail element <NUM>, such that the gap is formed between the telescopic assembly <NUM> and the guide rail element <NUM>. Thus, one end of the spring wire <NUM> is electrically connected to the circuit board <NUM>. The other end of the spring wire passes through the gap, bends and extends to the interior of the telescopic assembly <NUM>, and is electrically connected to the first connector <NUM>. The first connector <NUM> is electrically connected to the second connector <NUM>, and the second connector <NUM> is electrically connected to the lighting element <NUM>. That is, the circuit board <NUM> is electrically connected to the lighting element <NUM> through the spring wire <NUM>, the first connector <NUM>, and the second connector <NUM>, thereby controlling the lighting state of the lighting element <NUM>.

Further, in order to electrically connect the first connector <NUM> and the second connector <NUM>, the first connector <NUM> may be provided with connecting receptacle <NUM>. The first connector <NUM> includes positive elastic piece <NUM> and negative elastic piece <NUM> both of which are connected to the other end of the spring wire <NUM>. The positive elastic piece <NUM> and the negative elastic piece <NUM> are exposed from the inside of the connecting receptacle <NUM>. The second connector <NUM> includes main wire <NUM>, connecting negative electrode <NUM>, and connecting positive electrode <NUM> all of which are electrically connected to the main wire <NUM>. The cross-sectional area of the connecting negative electrode <NUM> is greater than the cross-sectional area of the connecting positive electrode <NUM>. The connecting negative electrode <NUM> is provided with through groove <NUM> along the direction of the connecting positive electrode <NUM>, and the connecting positive electrode <NUM> is provided in the through groove <NUM> and insulated from the connecting negative electrode <NUM>. The connecting positive electrode <NUM> has a length greater than the length of the connecting negative electrode <NUM>. The connecting positive electrode <NUM> and the connecting negative electrode <NUM> are inserted into the connecting receptacle <NUM>. The connecting positive electrode <NUM> is fitted to the positive elastic piece <NUM> in an elastic manner. The connecting negative electrode <NUM> is fitted to the negative elastic piece <NUM> in the elastic manner. The main wire <NUM> is electrically connected to the lighting element <NUM>.

The connecting positive electrode <NUM> of the second connector <NUM> is inserted in the connecting receptacle <NUM> of the first connector <NUM>, such that the connecting positive electrode <NUM> is fitted to the positive elastic piece <NUM> in the elastic manner to realize point-contact conductivity. The connecting negative electrode <NUM> of the second connector <NUM> is fitted to the negative elastic piece <NUM> in the elastic manner to realize point-contact conductivity. The first connector <NUM> and the second connector <NUM> are electrically connected.

Optionally, the gap between the connecting positive electrode <NUM> and the connecting negative electrode <NUM> may be filled with an insulating material. Alternatively, an insulating material such as insulating glue is provided on the surface of the connecting positive electrode <NUM> or the connecting negative electrode <NUM>. The insulation design is not limited herein.

Further, referring to <FIG>, the lighting assembly <NUM> further includes radiator <NUM>. The radiator <NUM> is provided with rotating groove <NUM>. The lighting element <NUM> is fitted to the radiator <NUM> to dissipate heat of the lighting element <NUM> through the radiator <NUM>. The lighting element <NUM> is in close contact with the radiator <NUM> to effectively guide the working heat to the radiator <NUM> to protect the lighting element <NUM> from damage due to high temperature. A side of the radiator <NUM> away from the rotating groove <NUM> is provided with mounting groove <NUM>, and the lighting element <NUM> is provided in the mounting groove <NUM>.

Optionally, the radiator <NUM> is made of an aluminum alloy. Alternatively, the radiator <NUM> may be made of other material with high heat dissipation performance, which is not limited herein.

In order to protect the lighting element <NUM>, the lighting assembly further includes transparent protective cover <NUM>. The transparent protective cover <NUM> is provided on the mounting groove <NUM> to protect the lighting element <NUM>. Light from the lighting element <NUM> can directly penetrate the transparent protective cover <NUM>, such that the light can be uniformly scattered to realize a good lighting effect.

Further, the lighting assembly <NUM> includes radiator rear cover <NUM> that covers the rotating groove <NUM>. The working heat of the lighting element <NUM> is transmitted to the radiator <NUM> and the radiator rear cover <NUM> to protect the lighting element <NUM> from damage.

Further, in order to realize the rotation of the lighting assembly <NUM> around the free end <NUM>, the lighting device includes connecting element <NUM>. The connecting element <NUM> has first connecting part <NUM> and second connecting part <NUM> connected to the first connecting part <NUM>. The first connecting part <NUM> is inserted at the free end <NUM> and connected to the second connector <NUM> in the telescopic assembly <NUM>. The connecting element <NUM> is rotated with the first connecting part <NUM> as a rotating shaft. The second connecting part <NUM> is provided in the rotating groove <NUM>, and the lighting assembly <NUM> is rotated with the second connecting part <NUM> as a rotating shaft.

Optionally, the connecting element <NUM> is a T-shaped connector. The first connecting part <NUM> of the T-shaped connector is inserted at the free end <NUM> and connected to the second connector <NUM> in the telescopic assembly <NUM>. The second connecting part <NUM> of the T-shaped connector is provided in the rotating groove <NUM> to make the lighting assembly <NUM> rotate axially and radially along the free end <NUM>.

Further, a portion where the connecting positive electrode <NUM> exceeds the connecting negative electrode <NUM> has a circular structure, and the connecting receptacle <NUM> is a circular connecting receptacle. After the connecting positive electrode <NUM> with the circular structure is inserted into the circular connecting receptacle, the second connector <NUM> and the first connector <NUM> can realize <NUM>° infinite rotation while being electrically connected.

Further, the lighting device includes damping rubber ring <NUM>. The damping rubber ring <NUM> is sleeved on the periphery of the second connecting part <NUM> to improve friction between the second connecting part <NUM> and the radiator <NUM> during rotation. In this way, the second connecting part is not easily loosened or shaken or does not make abnormal noises, and its hand sensory feel is improved.

An interior of the first connecting part <NUM> is communicated with an interior of the second connecting part <NUM>. The main wire <NUM> passes through the interior of the first connecting part <NUM> and the interior of the second connecting part <NUM> in sequence and is electrically connected to the lighting element <NUM>.

The second connector <NUM> is externally provided with a telescopic tube rubber sleeve. An outer wall of the telescopic tube rubber sleeve is closely connected to the telescopic assembly <NUM>. The second connector <NUM> has a smaller end passing through the telescopic tube rubber sleeve and a larger end with a diameter greater than the inner diameter of the telescopic tube rubber sleeve, such that the larger end of the second connector <NUM> is clamped inside the telescopic assembly <NUM> by the telescopic tube rubber sleeve without falling out. Meanwhile, due to the circular plug-in design between the telescopic tube rubber sleeve and the second connector <NUM>, the second connector <NUM> and the telescopic tube rubber sleeve are rotatable relatively.

Referring to <FIG>, <FIG>, and <FIG>, the circuit board <NUM> is provided with charging interface <NUM>. The main body <NUM> is provided with charging through-hole <NUM> and mounting through-hole <NUM> both of which run through an outer wall. The charging interface <NUM> is exposed from the charging through-hole <NUM>. The lighting device further includes battery <NUM>. The battery <NUM> is provided in the main body <NUM> and is electrically connected to the circuit board <NUM>. An external power supply device passes through the charging through-hole <NUM> to be connected to the charging interface <NUM> to charge the battery <NUM>. The lighting device further includes dust cover <NUM>. The dust cover <NUM> is provided in the mounting through-hole <NUM> and covers the charging through-hole <NUM>.

Of course, in this embodiment, the circuit board <NUM> is provided with a power output interface <NUM>. The main body <NUM> is further provided with power output through-hole <NUM> running through the outer wall. The power output interface <NUM> is exposed from the power output through-hole <NUM>. The power output interface <NUM> may be connected to an external electric device (such as a mobile phone or tablet) to charge the electric device.

Of course, the circuit board <NUM> is further integrated with a power key, a power indicator, and other components that are exposed to the main body <NUM>.

The dust cover <NUM> is clamped in the mounting through-hole <NUM> through a clamping point, such that the dust cover <NUM> will not be separated from the main body <NUM>. An outer wall of the dust cover <NUM> is provided with a protruding clamping point, and an outer shell of the main body is provided with a clamping point groove. The protruding clamping point and the clamping point groove are fitted with each other. When the charging interface is not used, the dust cover <NUM> can be tightly fitted to an outside of the charging through-hole <NUM> and the power output through-hole <NUM> due to the tight fit between the protruding clamping point and the clamping point groove. The dustproof plug can effectively protect dust and other foreign matters from entering the lighting device to realize a dustproof and beautiful effect. In addition, the dust cover <NUM> may be provided with a pull position to open the dust cover <NUM>.

Referring to <FIG>, <FIG>, and <FIG>, in this embodiment, in order to improve the stability of the base assembly <NUM>, the lighting device further includes sliding element <NUM>, a plurality of support legs <NUM>, support rod <NUM>, and support and fixing cover <NUM>. The sliding element <NUM> is slidably sleeved on the guide rail element <NUM>. The support legs <NUM> each are provided with rotating end <NUM>, and the rotating end <NUM> is rotatably connected to the sliding element <NUM>, such that the support legs <NUM> each are rotatable toward or away from the sliding element <NUM> with the rotating end <NUM> as a rotating shaft. The support rod <NUM> is provided with first connecting end <NUM> and second connecting end <NUM> that are arranged oppositely. The first connecting end <NUM> is rotatably connected to a central part of the support leg <NUM> through the support and fixing cover <NUM>. The second connecting end <NUM> is rotatably connected to the base <NUM>.

The sliding element <NUM> is slidable freely on the guide rail element <NUM>. The sliding element <NUM> is configured to move to the bottommost position to contact the base <NUM>, and the sliding element will not slide out of the guide member <NUM> due to the limitation by the base <NUM>. The support legs <NUM> each are connected and fixed to sliding element <NUM> through the rotating end <NUM>. The support legs <NUM> each are rotated with the rotating end <NUM> as a rotating shaft. The support rod <NUM> is provided between the support leg <NUM> and the base <NUM>. The support rod <NUM> has one end close to the support leg <NUM> serving as the first connecting end <NUM> and the other end close to the base <NUM> serving as the second connecting end <NUM>. The support rod <NUM> rotates with the first connecting end <NUM> as the rotating shaft. Alternatively, the support rod <NUM> is rotated with the second connecting end <NUM> as a rotating shaft. The rotating end <NUM>, the first connecting end <NUM>, and the second connecting end <NUM> form a triangular structure. That is, the support leg <NUM>, the support rod <NUM>, and the sliding element <NUM> form a triangle structure, which provides high stability and strength.

When the sliding element <NUM> is forced to move towards the base <NUM>, the distance between the rotating end <NUM> and the second connecting end <NUM> is shortened. The downward pressure of the sliding element <NUM> and the upward supporting force of the base <NUM> generate a resultant force toward the first connecting end <NUM>. The support leg <NUM> is opened outward under the action of the resultant force. That is, the support leg <NUM> is opened to increase the radius of a ground support point. The design effectively improves the stability of the lighting device when the lighting device stands, such that the lighting device can stand stably when tilted.

Correspondingly, when the sliding element <NUM> is pulled upward, the acting force is the opposite. The support leg <NUM> is closed inward under this force. Therefore, the support leg <NUM> can be opened and closed by moving the sliding element <NUM>. In the storage state, the lighting device has a smaller volume and is easy to carry.

Further, a plurality of grooves <NUM> are arranged on an outer wall of the guide rail element <NUM>. The lighting device further includes a plurality of rubber pad elements <NUM>. The plurality of rubber pad elements <NUM> are arranged in the sliding element <NUM>. A plurality of positioning posts <NUM> are provided on surfaces of the rubber pad elements <NUM> away from the sliding element <NUM>. The positioning posts <NUM> each are arranged in one groove <NUM>.

There is a gap between the inner side of the sliding element <NUM> and the outer side of the guide rail element <NUM>. In this embodiment, in order to prevent the sliding element <NUM> from loosening, the rubber pad elements <NUM> are provided in the gap between the inner side of the sliding element <NUM> and the outer side of the guide rail element <NUM>. One side of each of the rubber pad elements <NUM> is provided in the sliding element <NUM>, and the surface of each of the rubber pad elements <NUM> away from the sliding element <NUM> is provided with the positioning post <NUM>. The positioning posts <NUM> are embedded in the grooves <NUM>, such that the rubber pad elements <NUM> and the grooves <NUM> are always squeezed and stressed, thereby increasing the friction between the sliding element <NUM> and the guide rail element <NUM>.

A side of each of the support legs <NUM> away from the rotating end <NUM> is provided with magnetic suction piece <NUM>. When the base assembly <NUM> is fixed on a wall, a floor, or a ceiling, the base assembly is adsorbed onto a magnetic material on the wall, the floor, or the ceiling through the magnetic suction piece <NUM>. The design further strengthens the lighting device, improves the stability of the lighting device, and prevents the light from shaking.

Optionally, the magnetic suction piece <NUM> may be a strong magnet, and the magnetic material may also be a strong magnet. Alternatively, the magnetic suction piece <NUM> may be a strong magnet, and the magnetic material may be a material that can be adsorbed by the magnet, such as iron, cobalt, nickel or an alloy thereof. Alternatively, the magnetic suction piece <NUM> may be a material that can be adsorbed by the magnet, such as iron, cobalt, nickel, or an alloy thereof, and the magnetic material may be a strong magnet. The materials of the magnetic suction piece and magnetic material are not limited herein.

Further, in order to realize the extension and retraction of the telescopic assembly <NUM>, the telescopic assembly <NUM> includes a plurality of telescopic rods connected head-to-tail. The inner diameters of the telescopic rods decrease progressively from the fixed end <NUM> to the free end <NUM>. When the telescopic assembly <NUM> is in an extended state, the inner diameters of telescopic rods gradually decrease in a direction from the base assembly <NUM> to the lighting assembly <NUM>. That is, the inner diameter of the telescopic rod closest to the base assembly <NUM> is the largest, such that other telescopic rods can be stored in the telescopic rod with the largest inner diameter.

Further, it is necessary to prevent one telescopic rod from separating from the other telescopic rod during the extension process. Referring to <FIG>, taking telescopic rod 200a and telescopic rod 200b as examples, the inner side of the head of the telescopic rod 200a is provided with first rubber pad <NUM>, and the outer side of the tail of the telescopic rod 200b is provided with second rubber pad <NUM>. The outer diameter of the second rubber pad <NUM> is greater than the inner diameter of the first rubber pad <NUM>. When the tail of the telescopic rod 200b is sleeved on the head of the telescopic rod 200a and the telescopic rod 200b extends away from the telescopic rod 200a, the second rubber pad <NUM> is clamped at the first rubber pad <NUM> to prevent the telescopic rod 200b from sliding out of the telescopic rod 200a during the extension process. Every two adjacent telescopic rods are limited at a connection thereof by rubber pads, or by other soft materials. The limiting means are not limited herein.

The first rubber pad <NUM> and the first telescopic rod 200a, as well as the second rubber pad <NUM> and the telescopic rod 200b, are connected by adhesive glue or other means. The design realizes the stable connection between the first rubber pad <NUM> and the telescopic rod 200a, as well as between the second rubber pad <NUM> and the telescopic rod 200b.

Optionally, the telescopic rods are made of aluminum. Alternatively, the telescopic rods may also be made of other materials, such as aluminum alloy, copper, iron, or a composite material, which is not limited herein.

Claim 1:
A lighting device, comprising:
a base assembly (<NUM>), wherein a circuit board (<NUM>) is provided in the base assembly (<NUM>);
a telescopic assembly (<NUM>) provided with a fixed end (<NUM>) and a free end (<NUM>) that are arranged oppositely, wherein the fixed end (<NUM>) is connected to the base assembly (<NUM>); and
a lighting assembly (<NUM>) rotatably connected to the free end (<NUM>) to rotate axially and radially along the free end (<NUM>) and provided with a lighting element (<NUM>) electrically connected to the circuit board (<NUM>);
wherein
the base assembly (<NUM>) comprises a base (<NUM>), and a main body (<NUM>) and a guide rail element (<NUM>) both of which are hollow-through; wherein the guide rail element (<NUM>) has one end connected to the main body (<NUM>) and the other end connected to the base (<NUM>); an inner space of the main body (<NUM>) is communicated with an inner space of the guide rail element (<NUM>); the circuit board (<NUM>) is provided in the main body (<NUM>); and the fixed end (<NUM>) passes through the inner space of the main body (<NUM>) and the inner space of the guide rail element (<NUM>) in sequence and is connected to the base (<NUM>); and
the lighting device further comprises:
a spring wire (<NUM>) provided with one end electrically connected to the circuit board (<NUM>); and
a first connector (<NUM>) and a second connector (<NUM>), which are electrically connected and arranged inside the telescopic assembly (<NUM>) at the free end (<NUM>), wherein the other end of the spring wire (<NUM>) passes through a gap between the telescopic assembly (<NUM>) and the guide rail element (<NUM>), then bends and extends into the telescopic assembly (<NUM>), and is electrically connected to the first connector (<NUM>); and the second connector (<NUM>) is electrically connected to the lighting element (<NUM>).