CN113324194B - Lighting device - Google Patents
Lighting device Download PDFInfo
- Publication number
- CN113324194B CN113324194B CN202110651288.9A CN202110651288A CN113324194B CN 113324194 B CN113324194 B CN 113324194B CN 202110651288 A CN202110651288 A CN 202110651288A CN 113324194 B CN113324194 B CN 113324194B
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- piece
- support rod
- hollow cavity
- sliding seat
- rod
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S6/00—Lighting devices intended to be free-standing
- F21S6/002—Table lamps, e.g. for ambient lighting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/14—Adjustable mountings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention provides a lighting device. The lighting device includes: a lamp base; the top end of the upper supporting 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 the two ends of the damping piece are respectively connected with the lower supporting rod and the upper supporting rod, and when the upper supporting rod moves downwards to the target position relative to the lower supporting rod, the damping piece is stretched and generates a 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
Technical Field
The invention relates to the technical field of illumination, in particular to an illumination device.
Background
Currently, lighting devices have become an integral part of people's daily lives. 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 the light source by adjusting the front and back angles, thereby realizing the longitudinal adjustment of the position of the light source. That is, when the light source position of the desk lamp needs to be longitudinally adjusted, a user can only realize the operation through bending the movable section between the lamp cap and the base of the desk lamp, so that the use convenience of the desk lamp is greatly influenced, and the user experience is further influenced.
From the above, the prior art has the problem that the lighting device is inconvenient to longitudinally adjust the position of the light source.
Disclosure of Invention
The invention mainly aims to provide a lighting device, which solves 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 a lighting device comprising: a lamp base; the top end of the upper supporting 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 the two ends of the damping piece are respectively connected with the lower supporting rod and the upper supporting rod, and when the upper supporting rod moves downwards to the target position relative to the lower supporting rod, the damping piece is stretched and generates a restoring force opposite to the gravity direction of the upper supporting rod so that the upper supporting rod stays at the target position.
Further, the upper support rod and the lower support rod are in sliding connection.
Further, the upper support bar includes: a first connecting rod: the sliding part is connected with one end of the damping part, one end of the sliding part is detachably connected with the bottom end of the first connecting rod, and the sliding part is accommodated in the hollow cavity and can slide in the hollow cavity so as to enable the upper supporting rod to be in sliding connection with the lower supporting rod.
Further, the slider includes: the sliding seat is connected with one end of the damping piece; the connecting section is connected with the sliding seat in sequence and detachably connected with the bottom end of the first connecting rod.
Further, the sliding piece further comprises a plurality of balls, and the balls are arranged on the sliding seat along the interval of the sliding seat; or the sliding piece also comprises a plurality of pulleys, and the pulleys are arranged on the sliding seat along the interval of the sliding seat.
Further, the lower support bar includes: the second connecting rod is provided with a hollow cavity; the limiting piece is fixedly contained in the hollow cavity and is positioned 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.
Further, the limiting piece is provided with a central through hole, and the bottom end of the first connecting rod penetrates through the central through hole and is detachably connected with the connecting section.
Further, 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 stretches out of or retreats back to the containing groove.
Further, the shape of the outer 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 the outer diameter of the sliding seat so as to form a butt joint step at the joint of the connecting section and the sliding seat, and the first connecting rod is connected with the connecting section at the butt joint step.
Further, the one end of slider is the buckle and connects with the bottom of first connecting rod between.
Further, the damping member is a coil ring.
By applying the technical scheme of the invention, the lighting device comprises the lamp cap, the upper support rod, the lower support rod and the damping piece, wherein the top end of the upper support rod is connected with the lamp cap, the lower support rod is provided with the hollow cavity, at least one part of the upper support rod stretches into the hollow cavity so as to enable the upper support rod and the lower support rod to be connected in a nested manner, 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 to a target position relative to the lower support rod, the damping piece is stretched and generates a restoring force opposite to the gravity direction of the upper support rod so as to enable the upper support rod to stay at the target position, thus a user can adjust the height of the lamp cap only by moving the upper support rod relative to the lower support rod, convenience and rapidness are realized, the damping piece can enable the upper support rod to stay at the target position when moving to the target position, the requirement of a longitudinal light source position of the user is ensured, and the problem that the lighting device in the prior art is inconvenient to longitudinally adjust the light source position is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 illustrates an exploded view of a lighting device in one embodiment of the invention;
FIG. 2 is a schematic view showing the structure of the damping member connected to the upper support rod and the stopper in one embodiment of the present invention;
fig. 3 is a schematic view showing a structure of an upper support bar and a lower support bar after being connected in an embodiment of the present invention.
Wherein the above figures include the following reference numerals:
10. an upper support rod; 11. a first link; 12. a slider; 121. a sliding seat; 1211. a receiving groove; 122. a connection section; 123. a ball; 20. a lower support rod; 21. a second link; 22. a limiting piece; 30. and a damping member.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
It is noted that 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 unless otherwise indicated.
In the present invention, unless otherwise indicated, terms of orientation such as "upper, lower, top, bottom" are used generally with respect to the orientation shown in the drawings or with respect to the component itself in the vertical, upright or gravitational direction; also, for ease of understanding and description, "inner and outer" refers to inner and outer relative to the profile of each component itself, but the above-mentioned orientation terms are not intended to limit the present invention.
It will be apparent that the embodiments described above are merely some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
The invention provides a lighting device, which aims to solve 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 to 3. The lighting device includes a lamp cap, an upper support bar 10, a lower support bar 20, and a damping member 30. The top end of the upper supporting rod 10 is connected with a lamp cap. The lower support pole 20 has a hollow cavity into which at least a portion of the upper support pole 10 extends to allow a nested connection between the upper support pole 10 and the lower support pole 20. The both ends of the damping member 30 are respectively connected to the lower support bar 20 and the upper support bar 10, and when the upper support bar 10 moves downward to a target position with respect to the lower support bar 20, the damping member 30 is stretched and generates a restoring force opposite to the gravitational direction of the upper support bar 10 so that the upper support bar 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 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 stretches into the hollow cavity so that the upper support rod 10 and the lower support rod 20 are connected in a nested mode, 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 to a target position relative to the lower support rod 20, the damping piece 30 is stretched and generates a restoring force opposite to the gravity direction of the upper support rod 10 so that the upper support rod 10 stays at the target position, a user only needs to move the upper support rod 10 relative to the lower support rod 20 so that the height of the lamp cap can be adjusted, convenience and quickness are achieved, and the damping piece 30 can enable the upper support rod 10 to stay at the target position when moving to the target position, so that the requirement of the longitudinal light source position of the user is guaranteed, and the lighting device in the embodiment is convenient to use and user experience is improved.
In this embodiment, the upper support bar 10 and the lower support bar 20 are slidably connected. The connection mode of 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 the target position with smaller 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 pole 20, that is, the hollow cavity communicates with the top end opening and the bottom end opening of the lower support pole 20. This can increase the stroke of the upper support pole 10, thereby increasing the height adjustment range of the lighting device in the present embodiment, improving the applicability, and also can reduce the weight of the lower support pole 20, thereby reducing the weight of the entire lighting device.
As shown in fig. 1 to 2, the upper support bar 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 chamber and is capable of sliding in the hollow chamber to slidably connect the upper support bar 10 and the lower support bar 20.
As shown in fig. 1 to 2, the slider 12 includes a slider seat 121 and a connection section 122. The sliding seat 121 is connected to one end of the damper 30. The connection section 122 is sequentially connected with the sliding seat 121, and the connection section 122 is detachably connected with the bottom end of the first link 11.
In the present embodiment, the shape of the outer peripheral surface of the slide seat 121 is adapted to the shape of the inner wall surface of the hollow cavity. Specifically, the outer peripheral surface of the slide seat 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 surfaces of the sliding seat 121 are all covered by the inner wall surface of the hollow cavity. Further, the shape of the outer peripheral 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 also matches the shape of the inner wall surface of the hollow cavity. Thus, the overall appearance of the lighting device in the embodiment is more regular and attractive. Of course, it is understood that a certain gap is provided 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 slides freely in the hollow cavity.
As shown in fig. 1-2, the slider 12 also includes balls 123. The plurality of balls 123 are provided in plural, and the plurality of balls 123 are provided on the slide base 121 at intervals along the slide base 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 are accommodated in the hemispherical grooves. In the present embodiment, the plurality of balls 123 are provided at intervals in both the circumferential direction of the slide seat 121 and the axial direction of the slide seat 121. That is, the plurality of balls 123 are divided into a plurality of groups, and each group of balls 123 is aligned at intervals in the axial direction of the slide seat 121. The balls 123 are disposed at equal intervals along the circumferential direction of the sliding seat 121. By providing the balls 123, rolling contact is realized between the sliding seat 121 and the hollow cavity, which is beneficial to reducing contact friction, so that the sliding seat 121 can slide in the hollow cavity more smoothly, and the upper support rod 10 can slide more smoothly relative to the lower support rod 20.
In one embodiment, not shown, the slider 12 further comprises a pulley. The number of pulleys is plural, and the plural pulleys are disposed on the slide base 121 along the interval of the slide base 121. Specifically, in the present embodiment, the plurality of pulleys are provided at intervals in both the circumferential direction of the slide seat 121 and the axial direction of the slide seat 121. That is, the plurality of pulleys are divided into a plurality of groups, and each group of pulleys is aligned at intervals in the axial direction of the slide mount 121. The pulleys are equally spaced along the circumference of the sliding seat 121. By providing the pulleys, rolling contact is realized between the sliding seat 121 and the hollow cavity, which is beneficial to reducing contact friction, so that the sliding seat 121 can slide in the hollow cavity more smoothly, and the upper support rod 10 can slide more smoothly relative to the lower support rod 20.
As shown in fig. 1, the lower support bar 20 includes a second link 21 and a stopper 22. The second link 21 has the hollow cavity described above. The limiting piece 22 is fixedly accommodated in the hollow cavity and is positioned at the top end of the second connecting rod 21, and one end of the damping piece 30 is connected with the limiting piece 22, so that the damping piece 30 is connected with the second connecting rod 21 through the limiting piece 22. Specifically, the shape of the outer peripheral surface of the stopper 22 is adapted to the shape of the inner wall surface of the hollow cavity, that is, the stopper 22 is nested in the hollow cavity.
In this embodiment, the stopper 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 the outer diameter of the sliding seat 121 to form a butt step at the connection of the connection section 122 and the sliding seat 121, at which the first link 11 is connected with the connection section 122. Specifically, the shape of the inner wall surface of the center through hole is adapted to the shape of the outer peripheral surface of the first link 11. The limiting piece 22 is nested on the first connecting rod 11, the bottom end of the first connecting rod 11 passes through the central through hole of the limiting piece 22 to be connected with the butt joint step formed by the connecting section 122, and then the sliding piece slides in the hollow cavity under the driving of the sliding seat 121. It will be appreciated that, when the first link 11 enters the hollow cavity, there is a gap 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 balls 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 bar 10 can move in a straight line. In addition, the limiting piece 22 can also form a limiting stop for the sliding seat 121 to prevent the sliding seat 121 from falling out of the hollow cavity, so as to ensure the normal use of the lighting device in the embodiment.
In this embodiment, a snap connection is formed between one end of the slider 12 and the bottom end of the first link 11. That is, the connecting section 122 is clamped to the bottom end of the first connecting rod 11.
As shown in fig. 2, the slide base 121 has a receiving groove 1211. At least a portion of the damper 30 is accommodated in the accommodation groove 1211. One end of the damping member 30 is fixedly connected to the stopper 22. When the upper support rod 10 moves relative to the lower support rod 20, at least a portion of the damping member 30 protrudes or retreats from the receiving groove 1211.
In this embodiment, the damping member 30 is a coil ring. Specifically, the portion of the winding ring that is wound up is accommodated in the accommodation groove 1211. The winding ring is spaced from the stopper 22 by a distance such that the winding ring is pulled out by the same length as the distance and then fixedly coupled to the stopper 22. When the upper support rod 10 moves relative to the lower support rod 20, the rolled portion of the winding ring is protruded and retracted into the receiving groove 1211, so that the length of the winding ring outside the receiving groove 1211 is changed. Since the winding ring has a self-memory property, when the winding ring is stretched, a restoring force is generated, thereby generating a damping effect. The restoring force generated by the winding ring is matched with the gravity of the upper supporting rod 10. Thus, since the winding ring is stretched out by a certain length at the beginning, the winding ring always has a restoring force, so that the gravity of the upper support rod 10 can be counteracted by the restoring force of the winding ring no matter the upper support rod slides to any position in the hollow cavity, and the upper support rod stays at any position required by a user.
In this 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 side wall of the top end of the lower support rod 20, the threaded hole on one end of the damping member 30 and screws into the threaded hole of the limiting member 22, thereby fixing the limiting member 22 in the hollow cavity and simultaneously fixing one end of the damping member 30 on the limiting member 22.
In one embodiment, not shown, the lower support bar 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. The screw passes through a screw hole on the side wall of the top end of the lower support rod 20 and is screwed into a screw hole of 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 piece 12 are connected and then extend into the hollow cavity and slide in the hollow cavity, so that the same height adjusting effect can be achieved.
It should be noted that, after the damping member 30 is connected to the upper support rod 10 and the lower support rod 20, respectively, the lighting device in this embodiment is in the highest 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 bar 10 downwards.
From the above description, it can be seen that the above 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 stretches into the hollow cavity so that the upper support rod 10 and the lower support rod 20 are connected in a nested mode, 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 to a target position relative to the lower support rod 20, the damping piece 30 is stretched and generates a restoring force opposite to the gravity direction of the upper support rod 10 so that the upper support rod 10 stays at the target position, a user only needs to move the upper support rod 10 relative to the lower support rod 20, the height of the lamp cap relative to a base can be adjusted, convenience and rapidness are achieved, 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 guaranteed, and therefore the lighting device in the embodiment is convenient to use and 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 in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated 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 the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A lighting device, comprising:
a lamp base;
the top end of the upper supporting rod (10) is connected with the lamp cap;
the lower support rod (20) is provided with a hollow cavity, and at least one part of the upper support rod (10) stretches into the hollow cavity so that the upper support rod (10) and the lower support rod (20) are connected in a nested manner;
the two ends of the damping piece (30) are respectively connected with the lower supporting rod (20) and the upper supporting rod (10), and when the upper supporting rod (10) moves downwards to a target position relative to the lower supporting rod (20), the damping piece (30) is stretched and generates a restoring force opposite to the gravity direction of the upper supporting rod (10) so that the upper supporting rod (10) stays at the target position;
the upper support bar (10) includes:
first link (11):
the sliding piece (12), the one end of the said sliding piece (12) is connected with said damping piece (30), one end of the said sliding piece (12) is connected with bottom end of the said first link (11) removably, the said sliding piece (12) is held in the said hollow cavity and can slip in the said hollow cavity, in order to make the said upper support pole (10) and said lower support pole (20) slip and connect;
the lower support bar (20) includes:
-a second link (21), said second link (21) having said hollow cavity;
the limiting piece (22), the limiting piece (22) is fixedly accommodated in the hollow cavity and is positioned at the top end of the second connecting rod (21), one end of the damping piece (30) is connected with the limiting piece (22), so that the damping piece (30) is connected with the second connecting rod (21) through the limiting piece (22);
the limiting piece (22) is provided with a central through hole, and the bottom end of the first connecting rod (11) penetrates through the central through hole and is detachably connected with the sliding piece (12).
2. A lighting device as claimed in claim 1, characterized in that the slider (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), connecting section (122) with sliding seat (121) are connected in order, connecting section (122) with the bottom detachably of first connecting rod (11) is connected.
3. A lighting device as recited in claim 2, wherein,
the sliding piece (12) further comprises a plurality of balls (123), and the balls (123) are arranged on the sliding seat (121) along the interval of the sliding seat (121); or alternatively
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).
4. The lighting device according to claim 2, 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) protrudes or retreats from the receiving groove (1211).
5. A lighting device as recited in claim 2, wherein,
the shape of the outer 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 that of the sliding seat (121) so as to form a butt joint step at the joint 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 joint step.
6. A lighting device as claimed in any one of claims 1 to 5, characterized in that the damping member (30) is a coil ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110651288.9A CN113324194B (en) | 2021-06-10 | 2021-06-10 | Lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110651288.9A CN113324194B (en) | 2021-06-10 | 2021-06-10 | Lighting device |
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| CN113324194A CN113324194A (en) | 2021-08-31 |
| CN113324194B true CN113324194B (en) | 2023-04-21 |
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| CN202110651288.9A Active CN113324194B (en) | 2021-06-10 | 2021-06-10 | Lighting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101650269B (en) * | 2009-09-07 | 2012-01-04 | 东南大学 | Wind-spring type expandable sampling rod |
| CN102588815A (en) * | 2011-12-31 | 2012-07-18 | 上海旗升电气有限公司 | Table lamp capable of adjusting lighting direction and lighting range |
| CN104456466A (en) * | 2013-09-16 | 2015-03-25 | 深圳市海洋王照明工程有限公司 | Lifting bar structure for lamps and projection lamp with same |
| CN208475036U (en) * | 2018-07-30 | 2019-02-05 | 摩米士科技(深圳)有限公司 | Telescopic desk lamp |
| CN109488922B (en) * | 2018-10-24 | 2021-08-03 | 浙江普照电器有限公司 | But textile production is light for line that removes bits based on tape measure principle backward flow |
| CN210267013U (en) * | 2019-06-12 | 2020-04-07 | 深圳市中电照明股份有限公司 | Telescopic table lamp |
| CN211739001U (en) * | 2020-03-16 | 2020-10-23 | 西北师范大学 | Adjustable lamp mounting base |
| CN211980153U (en) * | 2020-06-12 | 2020-11-20 | 上海工程技术大学 | Advertisement propaganda device for exhibitions |
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