CN113324194A

CN113324194A - Lighting device

Info

Publication number: CN113324194A
Application number: CN202110651288.9A
Authority: CN
Inventors: 吴卫; 王泽�; 冯剑文; 刘兵仁
Original assignee: Ningbo Gongniu Optoelectronics Technology Co Ltd
Current assignee: Ningbo Gongniu Optoelectronics Technology Co Ltd
Priority date: 2021-06-10
Filing date: 2021-06-10
Publication date: 2021-08-31
Anticipated expiration: 2041-06-10
Also published as: CN113324194B

Abstract

The invention provides a lighting device. The lighting device includes: a lamp cap; the top end of the upper support rod is connected with the lamp cap; the lower support rod is provided with a hollow cavity, and at least one part of the upper support rod extends into the hollow cavity so as to enable the upper support rod and the lower support rod to be connected in a nested manner; and when the upper supporting rod moves downwards to a target position relative to the lower supporting rod, the damping piece is stretched and generates restoring force opposite to the gravity direction of the upper supporting rod, so that the upper supporting rod stays at the target position. The invention solves the problem that the lighting device in the prior art is inconvenient to longitudinally adjust the position of the light source.

Description

Lighting device

Technical Field

The invention relates to the technical field of illumination, in particular to an illumination device.

Background

At present, the lighting device becomes an integral part of people's daily life. Taking a desk lamp as an example, the desk lamp used by people is mainly placed on a writing desk or a dining table for illumination.

The existing desk lamp can only reduce the vertical height of a light source by adjusting the front and rear angles, thereby realizing the longitudinal adjustment of the position of the light source. That is to say, when the light source position of needs longitudinal adjustment desk lamp, the user can only realize through the movable segment between the lamp holder of the desk lamp of buckling and the base, and this use convenience that has influenced the desk lamp greatly, and then influence user experience.

From the above, there is a problem in the prior art that it is inconvenient to adjust the position of the light source longitudinally.

Disclosure of Invention

The invention mainly aims to provide a lighting device to solve the problem that the lighting device in the prior art is inconvenient to longitudinally adjust the position of a light source.

In order to achieve the above object, the present invention provides an illumination device comprising: a lamp cap; the top end of the upper support rod is connected with the lamp cap; the lower support rod is provided with a hollow cavity, and at least one part of the upper support rod extends into the hollow cavity so as to enable the upper support rod and the lower support rod to be connected in a nested manner; and when the upper supporting rod moves downwards relative to the lower supporting rod to a target position, the damping piece is stretched and generates restoring force opposite to the gravity direction of the upper supporting rod, so that the upper supporting rod stays at the target position.

Furthermore, the upper support rod and the lower support rod are in sliding connection.

Further, the upper support pole includes: a first link: the slider, the slider is connected with the one end of damping piece, and the one end of slider is connected with the bottom detachably of first connecting rod, and the slider holding is in cavity intracavity and can slide in cavity intracavity to sliding connection between messenger's upper strut pole and the lower strut pole.

Further, the slider includes: the sliding seat is connected with one end of the damping piece; the linkage segment, the linkage segment is connected in order with the sliding seat, and the linkage segment is connected with the bottom detachably of first connecting rod.

Furthermore, the sliding part also comprises a plurality of balls, and the balls are arranged on the sliding seat at intervals along the sliding seat; or the sliding part also comprises a plurality of pulleys which are arranged on the sliding seat along the interval of the sliding seat.

Further, the lower support rod includes: the second connecting rod is provided with a hollow cavity; the limiting piece is fixedly contained in the hollow cavity and located at the top end of the second connecting rod, and one end of the damping piece is connected with the limiting piece so that the damping piece is connected with the second connecting rod through the limiting piece.

Furthermore, the limiting part is provided with a central through hole, and the bottom end of the first connecting rod penetrates through the central through hole to be detachably connected with the connecting section.

Furthermore, the sliding seat is provided with a containing groove, at least one part of the damping piece is contained in the containing groove, one end of the damping piece is fixedly connected with the limiting piece, and when the upper supporting rod moves relative to the lower supporting rod, at least one part of the damping piece extends out of or returns to the containing groove.

Furthermore, the shape of the peripheral surface of the sliding seat is matched with the shape of the inner wall surface of the hollow cavity; and/or the outer diameter of the connecting section is smaller than that of the sliding seat so as to form a butt joint step at the connecting part of the connecting section and the sliding seat, and the first connecting rod is connected with the connecting section at the butt joint step.

Furthermore, one end of the sliding part is connected with the bottom end of the first connecting rod in a buckling mode.

Further, the damping member is a coil ring.

By applying the technical scheme of the invention, the lighting device comprises a lamp cap, an upper supporting rod, a lower supporting rod and a damping piece, wherein the top end of the upper supporting rod is connected with the lamp cap, the lower supporting rod is provided with a hollow cavity, at least one part of the upper supporting rod extends into the hollow cavity, so that the upper support rod and the lower support rod are connected in a nested manner, the two ends of the damping piece are respectively connected with the lower support rod and the upper support rod, when the upper support rod moves downwards relative to the lower support rod to a target position, the damping piece is stretched and generates restoring force opposite to the gravity direction of the upper support rod, so that the upper supporting rod stays at the target position, thus the user can adjust the height of the lamp holder only by moving the upper supporting rod relative to the lower supporting rod, the operation is convenient and fast, and the damping piece can make the upper supporting rod stop at the target position when moving to the target position, so that the requirement of the longitudinal light source position of a user is met, and the problem that the light source position of the lighting device in the prior art is inconvenient to longitudinally adjust is solved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 shows an exploded view of a lighting device in one embodiment of the invention;

FIG. 2 is a schematic view of the damper member coupled to the upper support rod and the limiting member according to an exemplary embodiment of the present invention;

fig. 3 is a schematic structural view of the upper support rod and the lower support rod after being connected in one embodiment of the present invention.

Wherein the figures include the following reference numerals:

10. an upper support rod; 11. a first link; 12. a slider; 121. a sliding seat; 1211. a containing groove; 122. a connecting section; 123. a ball bearing; 20. a lower support bar; 21. a second link; 22. a limiting member; 30. a damping member.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present invention, unless specified to the contrary, use of the terms of orientation such as "upper, lower, top, bottom" or the like, generally refer to the orientation as shown in the drawings, or to the component itself in a vertical, perpendicular, or gravitational orientation; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.

It is to be understood that the above-described embodiments are only a few, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a lighting device, aiming at solving the problem that the lighting device in the prior art is inconvenient to longitudinally adjust the position of a light source.

As shown in fig. 1-3. The lighting device includes a lamp cap, an upper support rod 10, a lower support rod 20, and a damping member 30. The top end of the upper support rod 10 is connected with the lamp cap. The lower support rod 20 has a hollow cavity into which at least a portion of the upper support rod 10 extends to allow a nested connection between the upper support rod 10 and the lower support rod 20. Both ends of the damping member 30 are connected to the lower support pole 20 and the upper support pole 10, respectively, and when the upper support pole 10 moves downward to a target position with respect to the lower support pole 20, the damping member 30 is stretched and generates a restoring force in a direction opposite to the gravity direction of the upper support pole 10, so that the upper support pole 10 stays at the target position.

The lighting device comprises a lamp cap, an upper support rod 10, a lower support rod 20 and a damping member 30, wherein the top end of the upper support rod 10 is connected with the lamp cap, the lower support rod 20 is provided with a hollow cavity, at least one part of the upper support rod 10 extends into the hollow cavity so as to enable the upper support rod 10 and the lower support rod 20 to be connected in a nested manner, two ends of the damping member 30 are respectively connected with the lower support rod 20 and the upper support rod 10, when the upper support rod 10 moves downwards relative to the lower support rod 20 to a target position, the damping member 30 is stretched and generates a restoring force opposite to the gravity direction of the upper support rod 10 so as to enable the upper support rod 10 to stay at the target position, so that a user only needs to move the upper support rod 10 relative to the lower support rod 20 to adjust the height of the lamp cap, the lighting device is convenient and quick, and the damping member 30 can enable the upper support rod 10 to stay at the, therefore, the lighting device in the embodiment is convenient to use, and the user experience is improved.

In this embodiment, the upper support rod 10 and the lower support rod 20 are slidably connected. The connection mode of the sliding connection can ensure firm connection between the upper support rod 10 and the lower support rod 20, and the user can move the upper support rod 10 to a target position by using small force, so that the device is convenient and labor-saving.

In this embodiment, the lower support rod 20 has a hollow cavity communicating with at least the top end opening of the lower support rod 20, and at least a portion of the upper support rod 10 extends into the hollow cavity. Of course, the hollow cavity may extend through the entire lower support rod 20, that is, the hollow cavity communicates with the top end opening and the bottom end opening of the lower support rod 20. This can increase the stroke of the upper support rod 10, thereby increasing the height adjustment range of the lighting device in the present embodiment, improving the applicability, and can also reduce the weight of the lower support rod 20, thereby reducing the weight of the entire lighting device.

As shown in fig. 1 to 2, the upper support pole 10 includes a first link 11 and a slider 12. The slider 12 is connected to one end of the damper 30. One end of the slider 12 is detachably connected to the bottom end of the first link 11. The slider 12 is accommodated in the hollow cavity and can slide in the hollow cavity to enable sliding connection between the upper support rod 10 and the lower support rod 20.

As shown in fig. 1 to 2, the slider 12 includes a slider seat 121 and a connecting section 122. The sliding seat 121 is connected to one end of the damper 30. The connection section 122 is connected with the sliding seat 121 in sequence, and the connection section 122 is detachably connected with the bottom end of the first connecting rod 11.

In this embodiment, the shape of the outer peripheral surface of the sliding seat 121 is adapted to the shape of the inner wall surface of the hollow cavity. Specifically, the outer peripheral surface of the slide holder 121 may be circular or polygonal such as hexagonal. Correspondingly, the shape of the inner wall surface of the hollow cavity is also a polygon such as a circle or a hexagon. Thus, the sliding seat 121 extends into the hollow cavity, and the outer peripheral surface of the sliding seat 121 is covered by the inner wall surface of the hollow cavity. Further, the shape of the outer circumferential surface of the lower support rod 20 is also adapted to the shape of the inner wall surface of the hollow cavity. The shape of the outer peripheral surface of the first link 11 is also adapted to the shape of the inner wall surface of the hollow cavity. Therefore, the overall appearance of the lighting device in the embodiment is more regular and beautiful. Of course, it can be understood that there is a certain gap between the outer circumferential surface of the sliding seat 121 and the inner wall surface of the hollow cavity, so that the sliding seat 121 can slide freely in the hollow cavity.

As shown in fig. 1-2, slider 12 further includes ball 123. The balls 123 are plural, and the plural balls 123 are disposed on the sliding seat 121 along the interval of the sliding seat 121. Specifically, the sliding seat 121 is provided with a plurality of hemispherical grooves corresponding to the balls 123, and at least a portion of the balls 123 is accommodated in the hemispherical grooves. In the present embodiment, the plurality of balls 123 are provided at intervals both in the circumferential direction of the slide holder 121 and in the axial direction of the slide holder 121. That is, the plurality of balls 123 are divided into a plurality of groups, and each group of balls 123 is arranged in a line at intervals in the axial direction of the sliding seat 121. The plurality of sets of balls 123 are arranged at equal intervals along the circumferential direction of the sliding seat 121. Through setting up ball 123 for realize rolling contact between sliding seat 121 and the well cavity, be favorable to reducing the contact friction, make sliding seat 121 can slide more smoothly in well cavity, go up bracing piece 10 can slide more smoothly for lower support rod 20.

In an embodiment not shown, the slide 12 also comprises a pulley. The plurality of pulleys are arranged on the sliding seat 121 at intervals along the sliding seat 121. Specifically, in the present embodiment, the plurality of pulleys are provided at intervals in both the circumferential direction of the slide holder 121 and the axial direction of the slide holder 121. That is, the plurality of pulleys are divided into a plurality of groups, and each group of pulleys is arranged in a line at intervals in the axial direction of the sliding seat 121. The plurality of sets of pulleys are arranged at equal intervals along the circumferential direction of the sliding seat 121. Through setting up the pulley for realize rolling contact between sliding seat 121 and the well cavity, be favorable to reducing the contact friction, make sliding seat 121 can slide in well cavity more smoothly, go up bracing piece 10 can slide for lower support bar 20 more smoothly.

As shown in fig. 1, the lower support rod 20 includes a second link 21 and a stopper 22. The second link 21 has the hollow cavity described above. The limiting member 22 is fixedly accommodated in the hollow cavity and located at the top end of the second connecting rod 21, and one end of the damping member 30 is connected to the limiting member 22, so that the damping member 30 is connected to the second connecting rod 21 through the limiting member 22. Specifically, the shape of the outer peripheral surface of the limiting member 22 is matched with the shape of the inner wall surface of the hollow cavity, that is, the limiting member 22 is nested in the hollow cavity.

In the present embodiment, the limiting member 22 has a central through hole. The bottom end of the first link 11 is detachably connected to the connection section 122 through the central through hole. The outer diameter of the connection section 122 is smaller than that of the sliding seat 121 to form a docking step where the connection section 122 is connected to the sliding seat 121, and the first link 11 is connected to the connection section 122. Specifically, the shape of the inner wall surface of the central through hole is adapted to the shape of the outer peripheral surface of the first link 11. Thus, the position-limiting member 22 is nested on the first connecting rod 11, and the bottom end of the first connecting rod 11 passes through the central through hole of the position-limiting member 22 to be connected with the butt-joint step formed by the connecting section 122, and then slides in the hollow cavity under the driving of the sliding seat 121. It can be understood that, when the first link 11 enters the hollow cavity, a gap exists between the first link 11 and the hollow cavity, that is, in the hollow cavity, only the sliding seat 121 is in rolling contact with the inner wall surface of the hollow cavity through the ball 123, and the first link 11 is not in contact with the inner wall surface of the hollow cavity. By providing the stopper 22, the first link 11 can be guided, so that the upper support rod 10 can move along a straight line. In addition, the limiting member 22 can also form a limiting stop for the sliding seat 121, so as to prevent the sliding seat 121 from coming out of the hollow cavity, thereby ensuring the normal use of the lighting device in this embodiment.

In this embodiment, one end of the sliding member 12 is connected to the bottom end of the first link 11 by a snap-fit connection. That is, the connecting section 122 is engaged with the bottom end of the first link 11.

As shown in fig. 2, the sliding seat 121 has an accommodating groove 1211. At least a portion of the damper 30 is received in the receiving groove 1211. One end of the damping member 30 is fixedly connected to the limiting member 22. When the upper support bar 10 moves relative to the lower support bar 20, at least a portion of the damping member 30 extends out of or retracts into the receiving groove 1211.

In this embodiment, the damping member 30 is a coil ring. Specifically, the rolled portion of the roll ring is accommodated in the accommodating groove 1211. The coil ring is spaced apart from the position-limiting member 22 by a certain distance, so that the coil ring is pulled out by the same length as the distance and then is fixedly connected to the position-limiting member 22. When the upper support rod 10 moves relative to the lower support rod 20, the rolled portion of the rolled ring extends out of and retracts into the receiving groove 1211, so that the length of the rolled ring outside the receiving groove 1211 changes. Because the coil ring has self-memory characteristics, when the coil ring is stretched, a restoring force is generated, thereby generating a damping effect. The restoring force generated by the coil loop is adapted to the weight of the upper support rod 10. Therefore, the winding ring is stretched out by a certain length at the beginning, so that the winding ring always has restoring force, the gravity of the upper supporting rod 10 can be offset by the restoring force of the winding ring no matter the upper supporting rod slides to any position in the hollow cavity, and the upper supporting rod stays at any position required by a user.

In the present embodiment, the side wall of the top end of the lower support rod 20 has a threaded hole, and one end of the damping member 30 and the limiting member 22 also have corresponding threaded holes. After the damping member 30 and the limiting member 22 enter the hollow cavity, the screw sequentially passes through the sidewall of the top end of the lower support rod 20, the threaded hole at one end of the damping member 30 and screws into the threaded hole of the limiting member 22, so as to fix the limiting member 22 in the hollow cavity and fix one end of the damping member 30 on the limiting member 22.

In one embodiment, not shown, the lower support rod 20 does not include a stop 22. The side wall of the top end of the lower support rod 20 is provided with a threaded hole, and one end of the damping member 30 is also provided with a corresponding threaded hole. A screw is passed through a screw hole formed in a side wall of the top end of the lower support rod 20 and screwed into a screw hole formed in one end of the damping member 30, thereby fixing one end of the damping member 30 to the lower support rod 20. The first connecting rod 11 and the sliding part 12 are connected and then extend into the hollow cavity and slide in the hollow cavity, and the same height adjusting effect can be achieved.

It should be noted that, when the damping members 30 are connected to the upper support rod 10 and the lower support rod 20, respectively, the lighting device in this embodiment is in the highest height state. That is, the initial position of the lighting device in the present embodiment is the highest height position of the base. When the user needs to longitudinally adjust the position of the light source, the user only needs to press the upper support rod 10 downwards.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects: the lighting device comprises a lamp cap, an upper support rod 10, a lower support rod 20 and a damping piece 30, wherein the top end of the upper support rod 10 is connected with the lamp cap, the lower support rod 20 is provided with a hollow cavity, at least one part of the upper support rod 10 extends into the hollow cavity so as to enable the upper support rod 10 and the lower support rod 20 to be connected in a nested manner, two ends of the damping piece 30 are respectively connected with the lower support rod 20 and the upper support rod 10, when the upper support rod 10 moves downwards relative to the lower support rod 20 to a target position, the damping piece 30 is stretched and generates a restoring force opposite to the gravity direction of the upper support rod 10 so as to enable the upper support rod 10 to stay at the target position, so that a user only needs to move the upper support rod 10 relative to the lower support rod 20 to adjust the height of the lamp cap relative to a base, the lighting device is convenient and fast, and the damping piece 30 can enable the upper support rod 10 to stay at the target position when moving to the target position, and the requirement of the longitudinal light source position of the user is ensured, therefore, the lighting device in the embodiment is convenient to use, and the user experience is improved.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An illumination device, comprising:

a lamp cap;

the top end of the upper supporting rod (10) is connected with the lamp cap;

the lower support rod (20), the lower support rod (20) has a hollow cavity, at least one part of the upper support rod (10) extends into the hollow cavity, so that the upper support rod (10) and the lower support rod (20) are connected in a nesting mode;

the damping piece (30), the both ends of damping piece (30) respectively with lower support rod (20) with go up bracing piece (10) and be connected, go up bracing piece (10) for when lower support rod (20) move down to the target location, damping piece (30) are stretched and produce with the restoring force that the gravity direction of going up bracing piece (10) is opposite, so that go up bracing piece (10) stop in the target location.

2. The lighting device as claimed in claim 1, wherein the upper support rod (10) and the lower support rod (20) are slidably connected.

3. A lighting device as claimed in claim 2, characterized in that said upper supporting rod (10) comprises:

first link (11):

slider (12), slider (12) with the one end of damping piece (30) is connected, the one end of slider (12) with the bottom detachably of first connecting rod (11) is connected, slider (12) holding is in the cavity intracavity and can slide in the cavity intracavity, so that go up bracing piece (10) with sliding connection between lower support rod (20).

4. A lighting device as claimed in claim 3, characterized in that said slide (12) comprises:

a sliding seat (121), wherein the sliding seat (121) is connected with one end of the damping piece (30);

the connecting section (122) is sequentially connected with the sliding seat (121), and the connecting section (122) is detachably connected with the bottom end of the first connecting rod (11).

5. The lighting device of claim 4,

the sliding piece (12) further comprises a plurality of balls (123), the balls (123) are arranged on the sliding seat (121) along the interval of the sliding seat (121); or

The sliding piece (12) further comprises a plurality of pulleys, and the pulleys are arranged on the sliding seat (121) along the interval of the sliding seat (121).

6. The lighting device according to claim 4, wherein the lower support bar (20) comprises:

a second link (21), the second link (21) having the hollow cavity;

the limiting part (22) is fixedly accommodated in the hollow cavity and located at the top end of the second connecting rod (21), and one end of the damping part (30) is connected with the limiting part (22) so that the damping part (30) is connected with the second connecting rod (21) through the limiting part (22).

7. The lighting device as claimed in claim 6, wherein the retaining member (22) has a central through hole through which the bottom end of the first link (11) is detachably connected to the connecting section (122).

8. The lighting device as claimed in claim 6, wherein the sliding seat (121) has a receiving groove (1211), at least a portion of the damping member (30) is received in the receiving groove (1211), one end of the damping member (30) is fixedly connected to the stopper (22), and when the upper support rod (10) moves relative to the lower support rod (20), at least a portion of the damping member (30) extends out of or retracts into the receiving groove (1211).

9. The lighting device of claim 4,

the shape of the peripheral surface of the sliding seat (121) is matched with the shape of the inner wall surface of the hollow cavity; and/or

The outer diameter of the connecting section (122) is smaller than the outer diameter of the sliding seat (121) so as to form a butt step at the connecting position of the connecting section (122) and the sliding seat (121), and the first connecting rod (11) is connected with the connecting section (122) at the butt step.

10. A lighting device as claimed in any one of claims 1 to 9, characterized in that the damping member (30) is a coil ring.