CN112197196A - LED lamp is used in construction site night construction - Google Patents
LED lamp is used in construction site night construction Download PDFInfo
- Publication number
- CN112197196A CN112197196A CN202011085661.0A CN202011085661A CN112197196A CN 112197196 A CN112197196 A CN 112197196A CN 202011085661 A CN202011085661 A CN 202011085661A CN 112197196 A CN112197196 A CN 112197196A
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- Prior art keywords
- groove
- moving
- led lamp
- cavity
- construction
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- 238000010276 construction Methods 0.000 title claims abstract description 32
- 238000003825 pressing Methods 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims description 6
- 210000005056 cell body Anatomy 0.000 claims description 4
- 241000606750 Actinobacillus Species 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 230000037380 skin damage Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
-
- 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
- F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
- F21V14/08—Controlling the distribution of the light emitted by adjustment of elements by movement of the screens or filters
-
- 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
- F21V27/00—Cable-stowing arrangements structurally associated with lighting devices, e.g. reels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/10—Outdoor lighting
- F21W2131/1005—Outdoor lighting of working places, building sites or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
The invention discloses an LED lamp for construction site night, which comprises a shell, a first groove body, a first rotating cavity, a paying-off wheel, a bulb, a second groove body, a shielding plate, an electric wire and a shaft body, wherein a one-way bearing is installed on the shaft body; the bulb is fixedly provided with a rubber barrel, the rubber barrel is of a hollow structure with two communicated ends, one end, far away from the bulb, of the rubber barrel is fixedly provided with a pressing plate, and two strip-shaped mounting grooves are formed in the side wall of the first groove body. Has the advantages that: under the cooperation of motor, one-way bearing used, can make this LED lamp carry out the rolling operation to the electric wire after the use fast, shortened time and the cost that the rolling was spent when guaranteeing the smooth completion of rolling operation.
Description
Technical Field
The invention relates to the technical field of illumination, in particular to an LED lamp for night construction in a building site.
Background
In the building site actual construction, because time limit for a project is nervous or construction needs, also need carry out the construction at night, the LED lamp becomes indispensable instrument in the work progress this moment, however because required power supply connecting wire is longer among the construction lighting process, make when receiving and releasing the line very difficult, and simultaneously, under the not user state, the power supply line exposes for a long time and receives various unexpected damages easily in the external world, trample like the personnel, hard thing fish tail etc, lead to the outside insulating skin damage of power supply line, cause the power supply line life to descend, discover the emergence of bringing the electric shock accident easily in untimely, there is great potential safety hazard, bring very big inconvenience for the user.
The patent number of the invention granted to CN106895375B discloses an LED lamp, which comprises a shell, wherein a sliding groove is arranged in the middle of the interior of the shell, a first groove body is arranged in the shell above the left side of the sliding groove, a second groove body is arranged in the shell below the right side of the sliding groove, a containing cavity is arranged in the shell at the bottom of the second groove body, and a transmission cavity is arranged above the right side of the first groove body.
The LED lamp has the following defects in the specific use process: the power line winding operation is complex, the use cost of the winding operation is relatively high, the second motor is required to move through the work of the first motor, then after the fifth toothed wheel is contacted with the sixth toothed wheel, the second motor drives the fifth toothed wheel to rotate, so that the fifth toothed wheel is utilized to rotate to drive the sixth toothed wheel to rotate to complete the winding operation, and the sixth toothed wheel rotates along with the rotation of the reel, so that the fifth toothed wheel cannot be ensured to be meshed with the sixth toothed wheel all the time after the fifth toothed wheel moves.
Disclosure of Invention
The invention aims to solve the problems in the background art and provides an LED lamp for night construction of a building site.
In order to achieve the purpose, the invention adopts the following technical scheme:
a LED lamp for night construction of a building site comprises a shell, a first groove body, a first rotating cavity, a paying-off wheel, a bulb, a second groove body, a shielding plate, an electric wire and a shaft body, wherein a one-way bearing is installed on the shaft body;
the bulb is fixedly provided with a rubber cylinder, the rubber cylinder is of a hollow structure with two communicated ends, one end of the rubber cylinder, far away from the bulb, is fixedly provided with a pressing plate, the side wall of the first groove body is provided with two strip-shaped mounting grooves, a pressure sensor is fixedly mounted in each strip-shaped mounting groove, the shell is fixedly provided with a controller, and the controller is electrically connected with the pressure sensor and the motor;
a moving structure is arranged between the shell and the shielding plate.
In foretell LED lamp for construction site night, the removal structure comprises shifting chute, movable block, screw rod, connection chamber, spread groove and knob one, the shifting chute has been seted up on the lateral wall of cell body two, fixed mounting has the movable block on the sunshade, and the movable block is located the shifting chute and contacts with the lateral wall of shifting chute, a screw rod is installed to the shifting chute internal rotation, and is threaded connection between movable block and the screw rod, connection chamber, spread groove have been seted up on the casing, and connect the chamber and communicate with spread groove and shift groove simultaneously, and the one end through connection chamber and fixed mounting of screw rod has knob one, and knob one is located the spread groove.
In foretell LED lamp for construction site night construction, the rotation groove has been seted up on the casing, and rotates the groove and be linked together with the spread groove.
In foretell LED lamp for construction site night, the removal structure comprises axis of rotation, shifting chute, rotation chamber two, magnetic sheet, perpendicular groove, knob two and magnetic path, the shifting chute has been seted up on the lateral wall of cell body two, fixed mounting has the magnetic path on the sunshade, and the magnetic path is located the shifting chute and contacts in the lateral wall of shifting chute, seted up on the casing and rotated chamber two, perpendicular groove, and rotate chamber two and communicate with perpendicular groove and shifting chute simultaneously, rotate two internal rotations in chamber and install the axis of rotation, fixed mounting has the magnetic sheet with magnetic path matched with in the axis of rotation, the one end of axis of rotation runs through perpendicular groove and fixed mounting has knob two.
In foretell LED lamp for construction site night construction, the shifting chute is close to the one side fixed mounting of casing outer wall has annular rubber pad.
Compared with the prior art, the invention has the advantages that:
1: under the cooperation of motor, one-way bearing used, can make this LED lamp carry out the rolling operation to the electric wire after the use fast, shortened time and the cost that the rolling was spent when guaranteeing the smooth completion of rolling operation.
2: the arrangement of the moving structure enables most of the shielding plates to be quickly moved out of the second groove body when the shielding plates are required to be used, and the moving structure is low in manufacturing cost and convenient for large-scale production and manufacturing.
Drawings
FIG. 1 is a schematic structural diagram of an LED lamp for night construction of a construction site according to the present invention;
FIG. 2 is an enlarged view of the structure of part A in FIG. 1;
FIG. 3 is an enlarged view of the structure of part B in FIG. 1;
FIG. 4 is an enlarged view of the structure of the portion C in FIG. 1;
FIG. 5 is an enlarged view of the structure of portion D in FIG. 1;
FIG. 6 is a schematic structural diagram of another embodiment of an LED lamp for night construction of a construction site according to the present invention;
fig. 7 is an enlarged view of a portion E of fig. 6.
In the figure: the automatic wire feeding device comprises a shell 1, a first groove body 2, a first rotating cavity 3, a first paying-off wheel 4, a bulb 5, a second groove body 6, a shielding plate 7, an electric wire 8, a placing cavity 9, a mounting cavity 10, a motor 11, a rotating disc 12, a rod body 13, a one-way bearing 14, a shaft body 15, a rubber cylinder 16, a pressing plate 17, a pressure sensor 18, a moving groove 19, a moving block 20, a screw rod 21, a connecting cavity 22, a connecting groove 23, a first knob 24, a rotating groove 25, an annular rubber pad 26, a second rotating cavity 27, a magnetic plate 28, a vertical groove 29, a second knob 30 and a.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example one
Referring to fig. 1-5, an LED lamp for night construction in a building site comprises a shell 1, a first groove body 2, a first rotating cavity 3, a paying-off wheel 4, a bulb 5, a second groove body 6, a shielding plate 7, an electric wire 8 and a shaft body 15, wherein a one-way bearing 14 is installed on the shaft body 15, a placing cavity 9 and an installation cavity 10 are formed in the shell 1, the placing cavity 9 is communicated with the first rotating cavity 3 and the installation cavity 10, a motor 11 is fixedly installed in the installation cavity 10, a rotating disc 12 is fixedly installed at the driving end of the motor 11, and two rod bodies 13 are fixedly installed between the lower surface of the rotating disc 12 and the one-way bearing 14;
a rubber tube 16 is fixedly mounted on the bulb 5, the rubber tube 16 is of a hollow structure with two communicated ends, a pressing plate 17 is fixedly mounted at one end, far away from the bulb 5, of the rubber tube 16, two strip-shaped mounting grooves are formed in the side wall of the first groove body 2, a pressure sensor 18 is fixedly mounted in each strip-shaped mounting groove, a controller is fixedly mounted on the shell 1, and the controller is electrically connected with the pressure sensor 18 and the motor 11;
a moving structure is installed between the housing 1 and the shutter 7.
The following points are notable:
1. the moving structure is composed of a moving groove 19, a moving block 20, a screw rod 21, a connecting cavity 22, a connecting groove 23 and a first knob 24, the moving groove 19 is formed in the side wall of the second groove body 6, the moving block 20 is fixedly installed on the shielding plate 7 and is located in the moving groove 19 and is in contact with the side wall of the moving groove 19, the screw rod 21 is rotatably installed in the moving groove 19, the moving block 20 is in threaded connection with the screw rod 21, the connecting cavity 22 and the connecting groove 23 are formed in the shell 1, the connecting cavity 22 is communicated with the connecting groove 23 and the moving groove 19 at the same time, the first knob 24 is fixedly installed in the connecting cavity 22 at one end of the screw rod 21, and the first knob 24 is located in the connecting.
2. A rotating groove 25 is formed in the shell 1, and the rotating groove 25 is communicated with the connecting groove 23; the purpose of the turning groove 25 is to facilitate the operator to apply a more steady turning force to the knob 24 by hand, rather than merely by applying a turning force to the outer surface thereof.
3. The one-way bearing 14 is free to rotate in one direction, but is in a locked state when rotating in the other direction, so that the one-way bearing 14 and the shaft body 15 rotate together.
4. The pressing plate 17 is contacted by the pressure sensor 18 and the motor 11 stops working when a certain pressure is generated, and the rolling operation is more stable by the elasticity of the rubber tube 16.
5. The controller can be a common PLC controller in daily life and production.
The one-way bearing 14 is arranged to enable the bulb 5 to be smoothly pulled when being pulled outwards, and meanwhile, the rod body 13 cannot be driven to rotate; when carrying out the rolling operation, open motor 11, motor 11 during operation passes through carousel 12, the body of rod 13 can drive one-way bearing 14 and rotate, one-way bearing 14 rotates this moment and can drive axis body 15 and rotate, axis body 15 rotates and drives actinobacillus wheel 4 promptly and rotate the rolling operation of accomplishing electric wire 8, when clamp plate 17 and pressure sensor 18 contact and produce certain pressure, pressure sensor 18 emergence signal passes through controller control motor 11 and closes, the rolling operation is accomplished.
When the shielding plate 7 needs to be moved out of the second groove body 6 for use, a hand is used for directly applying a rotating force to the first knob 24, the first knob 24 rotates to drive the screw 21 fixedly connected with the first knob to rotate, the screw 21 rotates to drive the moving block 20 to move in the moving groove 19, the shielding plate 7 is moved out of a large part of the inner portion of the shell 1 to be used by utilizing the movement of the moving groove 19, and the first knob 24 is rotated reversely after the use is finished, so that the shielding plate 7 can be retracted into the second groove body 6.
Example two
Referring to fig. 6 to 7, the present embodiment is different from the first embodiment in that: the moving structure comprises a rotating shaft, a moving groove 19, a rotating cavity II 27, a magnetic plate 28, a vertical groove 29, a knob II 30 and a magnetic block 31, the moving groove 19 is formed in the side wall of the groove body II 6, the magnetic block 31 is fixedly installed on the shielding plate 7, the magnetic block 31 is located in the moving groove 19 and is in contact with the side wall of the moving groove 19, the rotating cavity II 27 and the vertical groove 29 are formed in the shell 1, the rotating cavity II 27 is communicated with the vertical groove 29 and the moving groove 19 at the same time, the rotating shaft is rotatably installed in the rotating cavity II 27, the magnetic plate 28 matched with the magnetic block 31 is fixedly installed on the rotating shaft, and one end of the rotating shaft penetrates through the vertical groove 29 and is fixedly installed; an annular rubber pad 26 is fixedly arranged on one side of the moving groove 19 close to the outer wall of the shell 1; the annular rubber pad 26 is arranged to prevent the magnetic block 31 from directly colliding with the inner wall of the moving groove 19 when moving leftwards, so that the magnetic block 31 is protected.
The advantages of the second embodiment over the first embodiment are: the operation is simple and convenient, the shielding plate 7 can be moved out of the second groove body 6 for use only by driving the second knob 30 to rotate 180 degrees, and meanwhile, the second knob 30 is arranged on the front side portion of the shell 1, so that the problems that the shielding plate 7 is contacted with an operator and collided with the operator when being moved out of the second groove body 6 are avoided.
Further, unless otherwise specifically stated or limited, the above-described fixed connection is to be understood in a broad sense, and may be, for example, welded, glued, or integrally formed as is conventional in the art.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. The utility model provides a LED lamp is used in construction site night construction, includes casing (1), cell body (2), rotates chamber (3), actinobacillus wheel (4), bulb (5), cell body two (6), sunshade (7), electric wire (8) and axis body (15), its characterized in that, install one-way bearing (14) on axis body (15), set up on casing (1) and place chamber (9), installation cavity (10), and place chamber (9) and be linked together with rotation chamber (3), installation cavity (10) simultaneously, fixed mounting has motor (11) in installation cavity (10), the drive end fixed mounting of motor (11) has carousel (12), fixed mounting has two body of rod (13) between the lower surface of carousel (12) and one-way bearing (14);
a rubber cylinder (16) is fixedly mounted on the bulb (5), the rubber cylinder (16) is of a hollow structure with two communicated ends, a pressing plate (17) is fixedly mounted at one end, far away from the bulb (5), of the rubber cylinder (16), two strip-shaped mounting grooves are formed in the side wall of the first groove body (2), a pressure sensor (18) is fixedly mounted in each strip-shaped mounting groove, a controller is fixedly mounted on the shell (1), and the controller is electrically connected with the pressure sensor (18) and the motor (11);
a moving structure is arranged between the shell (1) and the shielding plate (7).
2. The LED lamp for the night construction of the building site as claimed in claim 1, wherein the moving structure is composed of a moving groove (19), a moving block (20), a screw rod (21), a connecting cavity (22), a connecting groove (23) and a first knob (24), the moving groove (19) is formed in the side wall of the second groove body (6), the moving block (20) is fixedly installed on the shielding plate (7), the moving block (20) is located in the moving groove (19) and is in contact with the side wall of the moving groove (19), the screw rod (21) is rotatably installed in the moving groove (19), the moving block (20) is in threaded connection with the screw rod (21), the connecting cavity (22) and the connecting groove (23) are formed in the shell (1), the connecting cavity (22) is simultaneously communicated with the connecting groove (23) and the moving groove (19), one end of the screw rod (21) penetrates through the connecting cavity (22) and is fixedly installed with the first knob (24), and the first knob (24) is positioned in the connecting groove (23).
3. The LED lamp for the night construction of the construction site as claimed in claim 2, wherein the housing (1) is provided with a rotation groove (25), and the rotation groove (25) is communicated with the connection groove (23).
4. The LED lamp for night construction of the construction site according to claim 1, the moving structure consists of a rotating shaft, a moving groove (19), a second rotating cavity (27), a magnetic plate (28), a vertical groove (29), a second knob (30) and a magnetic block (31), a moving groove (19) is formed in the side wall of the second groove body (6), a magnet (31) is fixedly mounted on the shielding plate (7), and the magnetic block (31) is positioned in the movable groove (19) and is contacted with the side wall of the movable groove (19), a second rotating cavity (27) and a vertical groove (29) are arranged on the shell (1), and the second rotating cavity (27) is communicated with the vertical groove (29) and the moving groove (19) at the same time, a rotating shaft is rotatably arranged in the second rotating cavity (27), a magnetic plate (28) matched with the magnetic block (31) is fixedly arranged on the rotating shaft, one end of the rotating shaft penetrates through the vertical groove (29) and is fixedly provided with a second knob (30).
5. The LED lamp for the night construction of the construction site is characterized in that an annular rubber pad (26) is fixedly arranged on one side of the moving groove (19) close to the outer wall of the shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011085661.0A CN112197196A (en) | 2020-10-12 | 2020-10-12 | LED lamp is used in construction site night construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011085661.0A CN112197196A (en) | 2020-10-12 | 2020-10-12 | LED lamp is used in construction site night construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112197196A true CN112197196A (en) | 2021-01-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011085661.0A Pending CN112197196A (en) | 2020-10-12 | 2020-10-12 | LED lamp is used in construction site night construction |
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| Country | Link |
|---|---|
| CN (1) | CN112197196A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106895375A (en) * | 2017-03-31 | 2017-06-27 | 浦江县科创进出口有限公司 | A kind of LED |
| CN107304997A (en) * | 2017-03-29 | 2017-10-31 | 厦门市万家灿灯具有限公司 | A kind of LED of service life length |
| CN208135657U (en) * | 2018-03-29 | 2018-11-23 | 常州信息职业技术学院 | A kind of actinobacillus device of photovoltaic cable |
| CN109539130A (en) * | 2018-12-10 | 2019-03-29 | 江苏中宇光伏科技有限公司 | A kind of telescopic electrical integrated street lamp of solar energy lithium |
| CN209656470U (en) * | 2019-01-28 | 2019-11-19 | 湖北宇电能源科技股份有限公司 | Detection device is used in a kind of production of lithium-ion-power cell |
| CN210241295U (en) * | 2019-08-06 | 2020-04-03 | 常州市第二人民医院 | Single reflector type operating room lamp |
| CN211508889U (en) * | 2020-03-12 | 2020-09-15 | 深圳市飞兆科技有限公司 | Mini-type frequency converter shell |
| CN211624952U (en) * | 2019-03-13 | 2020-10-02 | 广州七号家族节能科技有限公司 | Lighting lamp capable of adjusting light brightness |
-
2020
- 2020-10-12 CN CN202011085661.0A patent/CN112197196A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107304997A (en) * | 2017-03-29 | 2017-10-31 | 厦门市万家灿灯具有限公司 | A kind of LED of service life length |
| CN106895375A (en) * | 2017-03-31 | 2017-06-27 | 浦江县科创进出口有限公司 | A kind of LED |
| CN208135657U (en) * | 2018-03-29 | 2018-11-23 | 常州信息职业技术学院 | A kind of actinobacillus device of photovoltaic cable |
| CN109539130A (en) * | 2018-12-10 | 2019-03-29 | 江苏中宇光伏科技有限公司 | A kind of telescopic electrical integrated street lamp of solar energy lithium |
| CN209656470U (en) * | 2019-01-28 | 2019-11-19 | 湖北宇电能源科技股份有限公司 | Detection device is used in a kind of production of lithium-ion-power cell |
| CN211624952U (en) * | 2019-03-13 | 2020-10-02 | 广州七号家族节能科技有限公司 | Lighting lamp capable of adjusting light brightness |
| CN210241295U (en) * | 2019-08-06 | 2020-04-03 | 常州市第二人民医院 | Single reflector type operating room lamp |
| CN211508889U (en) * | 2020-03-12 | 2020-09-15 | 深圳市飞兆科技有限公司 | Mini-type frequency converter shell |
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Application publication date: 20210108 |