CN111768724A - Lamp house mounting structure is used in exhibition hall design - Google Patents
Lamp house mounting structure is used in exhibition hall design Download PDFInfo
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- CN111768724A CN111768724A CN202010649821.3A CN202010649821A CN111768724A CN 111768724 A CN111768724 A CN 111768724A CN 202010649821 A CN202010649821 A CN 202010649821A CN 111768724 A CN111768724 A CN 111768724A
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- shaped rod
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/04—Signs, boards or panels, illuminated from behind the insignia
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/04—Signs, boards or panels, illuminated from behind the insignia
- G09F13/0413—Frames or casing structures therefor
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Mechanical Engineering (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses a lamp box mounting structure for exhibition hall design, which comprises a lamp box, a box body and a fixed block, the box body is connected with one side of the lamp box in a sliding way, the box body is welded at the top of the box body, a lifting mechanism for lifting the lamp box is arranged in the box body, and the two ends of one side of the box body, which is far away from the lamp box, are respectively connected with a first L-shaped rod and a second L-shaped rod in a sliding way, the fixed block is positioned between the two opposite ends of the transverse edges of the first L-shaped rod and the second L-shaped rod, and one side of the fixed block close to the first L-shaped rod is provided with a square through hole, the transverse edges of the first L-shaped rod and the second L-shaped rod are both connected inside the square through hole in a sliding way, and one side that the lamp house was kept away from to the box body has seted up the bar groove, the perpendicular limit of first L type pole and second L type pole all passes bar groove and sliding connection inside the box body, and the box body is inside to be equipped with the moving mechanism who is used for removing first L type pole and second L type pole. The invention improves the practicability of the lamp box.
Description
Technical Field
The invention relates to the technical field of exhibition hall lamp box installation, in particular to a lamp box installation structure for exhibition hall design.
Background
The lamp box is a film-watching lamp box for X-ray photograph. The lamp box is generally made of lamp sheets, preferably a PC board, and is widely adopted by vast groups due to elegant appearance and strong advertising effect, wherein the lamp box comprises an exhibition hall and the like, and the exhibition hall needs to be installed before the lamp box is used.
Current exhibition room is to the installation of lamp house, all through screw or bolt snap-on the wall, however when needs are dismantled the lamp house and are maintained and change, not only dismantle the trouble, when installing moreover, need screw in screw or bolt again, and the relapse is very big to wall individual damage of wall drilling hole, does not utilize the protection to the exhibition room wall.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a lamp box mounting structure for exhibition hall design.
In order to achieve the purpose, the invention adopts the following technical scheme:
a lamp box mounting structure for exhibition hall design comprises a lamp box, a box body and a fixed block, wherein the box body is connected to one side of the lamp box in a sliding manner, the box body is arranged in parallel with the lamp box, the top of the box body is welded with the box body, a lifting mechanism for lifting the lamp box is arranged in the box body, two ends of one side of the box body, which is far away from the lamp box, are respectively connected with a first L-shaped rod and a second L-shaped rod in a sliding manner, the first L-shaped rod and the second L-shaped rod are symmetrically arranged, the transverse edges of the first L-shaped rod and the second L-shaped rod are arranged in parallel with the box body, the fixed block is positioned between two opposite ends of the transverse edges of the first L-shaped rod and the second L-shaped rod, one side of the fixed block, which is close to the first L-shaped rod, is provided with a square through hole, the transverse edges of the first L-shaped rod and the second L-shaped rod are both connected in the square through hole in a sliding manner, and a moving mechanism for moving the first L-shaped rod and the second L-shaped rod is arranged in the box body.
Preferably, the lifting mechanism comprises a screw rod, a sliding block and a second gear, a first gear is meshed on one side of the second gear, the first gear, the second gear and the screw rod are all rotatably connected inside the box body, the sliding block is slidably connected inside the box body, the screw rod penetrates through the sliding block and the second gear, the surface of the screw rod is connected inside the sliding block through threads, and the surface of the screw rod is welded inside the second gear.
Preferably, one end of the sliding block, which is close to the lamp box, penetrates through the side face of the box body and is welded to the side face of the lamp box, a first positive and negative motor is installed at the bottom inside the box body, and the top end of an output shaft of the first positive and negative motor is welded at the center of the bottom of the first gear.
Preferably, moving mechanism includes head rod, second connecting rod and sliding sleeve, and box body internal weld has the stand, the stand is on a parallel with the setting of first L type pole vertical edge, and the equal sliding connection of head rod, second connecting rod and sliding sleeve is inside the box body, head rod, second connecting rod and sliding sleeve all have two, and the stand passes two sliding sleeves, stand surface sliding connection is inside the sliding sleeve, and two sliding sleeves are located the stand both ends respectively.
Preferably, two the second connecting rod top all rotates to be connected in first L type pole perpendicular limit center department, and two second connecting rod bottoms rotate respectively to be connected in two sliding sleeve one ends, two the head rod top rotates respectively to be connected in two sliding sleeve other ends, and two head rod bottoms all rotate to be connected in second L type pole perpendicular limit one side center department, box body internally mounted has hydraulic telescoping rod, and hydraulic telescoping rod's output shaft top welds in second L type pole perpendicular limit opposite side center department.
Preferably, the moving mechanism comprises a first pulley, a second pulley and a belt, the first pulley, the second pulley and the belt are all rotatably connected inside the box body, the belt is sleeved on the first pulley and the second pulley, the first pulley and the second pulley are arranged in parallel, the upper transverse edge of the belt penetrates through the vertical edge of the first L-shaped rod and is bonded inside the vertical edge of the first L-shaped rod, the lower transverse edge of the belt penetrates through the vertical edge of the first L-shaped rod and is slidably connected inside the vertical edge of the first L-shaped rod, the upper transverse edge of the belt penetrates through the vertical edge of the second L-shaped rod and is slidably connected inside the vertical edge of the second L-shaped rod, and the lower transverse edge of the belt penetrates through the vertical edge of the second L-shaped rod and is bonded inside the vertical edge of the second L-shaped rod.
Preferably, a second positive and negative motor is installed on one side inside the box body, and the top end of an output shaft of the second positive and negative motor is welded at the center of one side of the first pulley.
The invention has the beneficial effects that:
1. according to the invention, the fixed block is fixed on the wall, the second L-shaped rod is pushed to move through the hydraulic telescopic rod, the second L-shaped rod drives the two first connecting rods to move, the two first connecting rods drive the two sliding sleeves to move, the two sliding sleeves drive the two second connecting rods to move, and the two second connecting rods drive the first L-shaped rod to move, so that the two transverse edges of the first L-shaped rod and the second L-shaped rod can enter the square through hole to fix the lamp box.
2. According to the invention, the first gear is driven to rotate by the first positive and negative motor, the first gear drives the second gear to rotate, the second gear drives the screw rod to rotate, the screw rod drives the slider to move up and down, and the slider drives the lamp box to move up and down, so that the height of the lamp box can be adjusted according to the height change of people to be observed, and the people to be observed can have an optimal observation angle.
3. According to the lamp box dismounting device, the fixed block is fixed on the wall, the belt is driven to rotate forwards through the forward rotation of the second forward and reverse motor, the first L-shaped rod is driven to move towards the center by the upper belt side, the second L-shaped rod is driven to move towards the center by the lower belt side, so that the two sides of the first L-shaped rod and the second L-shaped rod can enter the square through hole to fix the lamp box, when dismounting is needed, the second forward and reverse motor is only required to rotate backwards, the lower belt side drives the second L-shaped rod to move towards the direction away from the center, the first L-shaped rod is driven to move towards the direction away from the center by the upper belt side, the lamp box can be dismounted by enabling the sides of the first L-shaped rod and the second L-shaped rod to leave the square through hole, the damage to the wall due to repeated hole opening on the wall is avoided, the dismounting efficiency of the lamp box is improved, and the.
Drawings
Fig. 1 is a schematic structural view of a lamp box mounting structure for exhibition hall design according to embodiment 1 of the present invention;
fig. 2 is a sectional view of a lamp box mounting structure for exhibition hall design according to embodiment 1 of the present invention;
fig. 3 is a sectional view of a box body of a lamp box mounting structure for exhibition hall design according to embodiment 1 of the present invention;
fig. 4 is a sectional view of a lamp box mounting structure for exhibition hall design according to embodiment 2 of the present invention.
In the figure: the automatic feeding device comprises a lamp box 1, a fixed block 2, a first L-shaped rod 3, a box 4, a box 5, a strip-shaped groove 6, a second L-shaped rod 7, a first positive and negative motor 8, a first gear 9, a lead screw 10, a sliding block 11, a second gear 12, a sliding sleeve 13, a hydraulic telescopic rod 14, a first connecting rod 15, an upright post 16, a second connecting rod 17, a first pulley 18, a second positive and negative motor 19, a belt 20, a second pulley 21 and a square through hole 22.
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.
Example 1
Referring to fig. 1-3, a lamp box mounting structure for exhibition hall design, comprising a lamp box 1, a box body 4 and a fixed block 2, wherein the box body 4 is slidably connected to one side of the lamp box 1, the box body 4 is arranged parallel to the lamp box 1, the top of the box body 4 is welded with the box body 5, a lifting mechanism for lifting the lamp box 1 is arranged inside the box body 5, two ends of one side of the box body 4 away from the lamp box 1 are respectively slidably connected with a first L-shaped rod 3 and a second L-shaped rod 7, the first L-shaped rod 3 and the second L-shaped rod 7 are symmetrically arranged, the transverse edges of the first L-shaped rod 3 and the second L-shaped rod 7 are arranged parallel to the box body 4, the fixed block 2 is positioned between two opposite ends of the transverse edges of the first L-shaped rod 3 and the second L-shaped rod 7, a square through hole 22 is arranged on one side of the fixed block 2 close to the first L-shaped rod 3, the transverse edges of, and box body 4 is kept away from one side of lamp house 1 and has been seted up bar groove 6, and the perpendicular limit of first L type pole 3 and second L type pole 7 all passes bar groove 6 and sliding connection inside box body 4, and the inside moving mechanism who is used for removing first L type pole 3 and second L type pole 7 that is equipped with of box body 4.
The invention, the lifting mechanism includes the feed screw 10, slide block 11 and second gear 12, and the engagement of one side of second gear 12 has the first gear 9, second gear 12 and feed screw 10 are connected to the inside of the container 5 rotatably, and the slide block 11 connects to the inside of container 5 slidably, the feed screw 10 passes slide block 11 and second gear 12, and the surface of feed screw 10 connects to the inside of slide block 11 through the whorl, the surface of feed screw 10 welds in the second gear 12, one end of slide block 11 close to lamp house 1 passes the side of container 5 and welds in the side of lamp house 1, and the bottom in container 5 installs the first positive and negative motor 8, the top of output shaft of the first positive and negative motor 8 welds in the centre of bottom of the first gear 9, the shifter includes the first connecting rod 15, the second connecting rod 17 and sliding bush 13, and weld the pillar 16 in container 4, the pillar 16 is parallel to the first L-shaped pole 3, the first connecting rod 15, the second connecting rod 17 and the sliding sleeve 13 are all connected inside the box body 4 in a sliding way, two connecting rods 15, two connecting rods 17 and two sliding sleeves 13 are arranged, and the upright post 16 passes through the two sliding sleeves 13, the surface of the upright post 16 is connected with the inner part of the sliding sleeve 13 in a sliding way, and the two sliding sleeves 13 are respectively positioned at the two ends of the upright post 16, the top ends of the two second connecting rods 17 are rotatably connected with the center of the vertical edge of the first L-shaped rod 3, the bottom ends of the two second connecting rods 17 are respectively and rotatably connected with one end of the two sliding sleeves 13, the top ends of the two first connecting rods 15 are respectively and rotatably connected with the other end of the two sliding sleeves 13, the bottom ends of the two first connecting rods 15 are rotatably connected to the center of one side of the vertical edge of the second L-shaped rod 7, a hydraulic telescopic rod 14 is arranged in the box body 4, and the top end of the output shaft of the hydraulic telescopic rod 14 is welded at the center of the other side of the vertical edge of the second L-shaped rod 7.
The working principle of the embodiment is as follows: when in actual use, the fixing block 2 is fixed on a wall, the second L-shaped rod 7 is pushed to move by the hydraulic telescopic rod 14, the second L-shaped rod 7 drives the two first connecting rods 15 to move, the two first connecting rods 15 drive the two sliding sleeves 13 to move, the two sliding sleeves 13 drive the two second connecting rods 17 to move, and the two second connecting rods 17 drive the first L-shaped rod 3 to move, so that the two transverse edges of the first L-shaped rod 3 and the second L-shaped rod 7 can enter the square through hole 22 to fix the lamp box 1, when disassembly is needed, the lamp box 1 can be disassembled by only pulling the second L-shaped rod 7 to drive the first L-shaped rod 3 to move by the hydraulic telescopic rod 14, so that the transverse edges of the first L-shaped rod 3 and the second L-shaped rod 7 can leave the square through hole 22, the problem that the wall is damaged due to repeated hole opening on the wall is avoided, thereby not only improving the disassembly efficiency of the lamp box 1, but also prolonging the service life of the exhibition hall, drive first gear 9 through first positive and negative motor 8 and rotate, first gear 9 drives second gear 12 and rotates, second gear 12 drives lead screw 10 and rotates, lead screw 10 drives slider 11 and reciprocates, slider 11 drives lamp house 1 and reciprocates, thereby can highly adjust lamp house 1, can adjust according to the change of the crowd's height of sightseeing, make the people of sightseeing all possess an optimum angle of sightseeing, in addition when changing large-scale or small-size lamp house 1, also accessible height-adjusting makes lamp house 1 be located the best exhibition position of wall, and then the practicality of this lamp house 1 has been improved.
Example 2
Referring to fig. 4, the embodiment only differs from embodiment 1 in that the moving mechanism includes a first pulley 18, a second pulley 21 and a belt 20, and the first pulley 18, the second pulley 21 and the belt 20 are rotatably connected inside the box body 4, the belt 20 is sleeved on the first pulley 18 and the second pulley 21, and the first pulley 18 and the second pulley 21 are arranged in parallel, the upper transverse edge of the belt 20 passes through the vertical edge of the first L-shaped rod 3 and is adhered inside the vertical edge of the first L-shaped rod 3, the lower transverse edge of the belt 20 passes through the vertical edge of the first L-shaped rod 3 and is slidably connected inside the vertical edge of the first L-shaped rod 3, the upper transverse edge of the belt 20 passes through the vertical edge of the second L-shaped rod 7 and is slidably connected inside the vertical edge of the second L-shaped rod 7, and the lower transverse edge of the belt 20 passes through the vertical edge of the second L-shaped rod 7 and is adhered inside the vertical edge of the second L-shaped rod 7, a second positive and negative motor 19, and the top end of the output shaft of the second positive and negative motor 19 is welded at the center of one side of the first pulley 18.
The working principle of the embodiment is as follows: when in actual use, the fixed block 2 is fixed on the wall, the belt 20 is driven to rotate forwards by the forward and backward rotation of the second motor 19, the first L-shaped rod 3 is driven to move towards the center by the upper transverse edge of the belt 20, the second L-shaped rod 7 is driven to move towards the center by the lower transverse edge of the belt 20, so that the two transverse edges of the first L-shaped rod 3 and the second L-shaped rod 7 can enter the square through hole 22 to fix the lamp box 1, when the disassembly is needed, the second positive and negative motor 19 is only required to be reversely rotated, so that the lower transverse edge of the belt 20 drives the second L-shaped rod 7 to move away from the center, the upper transverse edge of the belt 20 drives the first L-shaped rod 3 to move away from the center, the transverse edges of the first L-shaped rod 3 and the second L-shaped rod 7 can leave the square through hole 22 to disassemble the lamp box 1, the phenomenon that the wall is damaged due to repeated hole opening on the wall is avoided, and therefore the disassembly efficiency of the lamp box 1 is improved, and the service life of the wall of the exhibition hall is prolonged.
Having shown and described the basic principles and essential features of the invention and its advantages, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof, and it is therefore intended that the embodiments be considered as illustrative and not restrictive in all respects, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, any reference signs in the claims being therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. A lamp box mounting structure for exhibition hall design comprises a lamp box (1), a box body (4) and a fixing block (2), and is characterized in that the box body (4) is connected to one side of the lamp box (1) in a sliding manner, the box body (4) is parallel to the lamp box (1), the top of the box body (4) is fixedly connected with a box body (5), a lifting mechanism used for lifting the lamp box (1) is arranged inside the box body (5), two ends of one side, far away from the lamp box (1), of the box body (4) are respectively connected with a first L-shaped rod (3) and a second L-shaped rod (7) in a sliding manner, the first L-shaped rod (3) and the second L-shaped rod (7) are symmetrically arranged, the transverse edges of the first L-shaped rod (3) and the second L-shaped rod (7) are parallel to the box body (4), the fixing block (2) is arranged between two opposite ends of the transverse edges of the first L-shaped rod (3) and the second L, and fixed block (2) are close to one side of first L type pole (3) and have seted up square through hole (22), the equal sliding connection in square through hole (22) in the horizontal limit of first L type pole (3) and second L type pole (7) is inside, and box body (4) keep away from one side of lamp house (1) and seted up bar groove (6), the perpendicular limit of first L type pole (3) and second L type pole (7) all passes bar groove (6) and sliding connection inside box body (4), and box body (4) inside is equipped with the moving mechanism who is used for removing first L type pole (3) and second L type pole (7).
2. The light box installation structure for exhibition hall design according to claim 1, wherein the lifting mechanism comprises a screw rod (10), a slide block (11) and a second gear (12), and the first gear (9) is engaged with one side of the second gear (12), the first gear (9), the second gear (12) and the screw rod (10) are all rotatably connected inside the box body (5), the slide block (11) is slidably connected inside the box body (5), the screw rod (10) passes through the slide block (11) and the second gear (12), the surface of the screw rod (10) is connected inside the slide block (11) through a screw thread, and the surface of the screw rod (10) is fixedly connected inside the second gear (12).
3. The light box installation structure for exhibition hall design according to claim 2, wherein one end of the slider (11) close to the light box (1) passes through the side of the box body (5) and is fixedly connected to the side of the light box (1), and the bottom of the box body (5) is provided with the first forward and reverse motor (8), and the top end of the output shaft of the first forward and reverse motor (8) is fixedly connected to the center of the bottom of the first gear (9).
4. The light box installation structure for exhibition hall design according to claim 3, wherein the moving mechanism comprises a first connecting rod (15), a second connecting rod (17) and a sliding sleeve (13), a column (16) is fixedly connected inside the box body (4), the column (16) is arranged in parallel with the vertical edge of the first L-shaped rod (3), the first connecting rod (15), the second connecting rod (17) and the sliding sleeve (13) are all slidably connected inside the box body (4), two columns (15), two connecting rods (17) and two sliding sleeves (13) are provided, the column (16) penetrates through two sliding sleeves (13), the surface of the column (16) is slidably connected inside the sliding sleeves (13), and the two sliding sleeves (13) are respectively arranged at two ends of the column (16).
5. The light box installation structure for exhibition hall design according to claim 4, wherein the top ends of two second connecting rods (17) are rotatably connected to the center of the vertical side of the first L-shaped rod (3), the bottom ends of two second connecting rods (17) are rotatably connected to one ends of two sliding sleeves (13), the top ends of two first connecting rods (15) are rotatably connected to the other ends of two sliding sleeves (13), the bottom ends of two first connecting rods (15) are rotatably connected to the center of one side of the vertical side of the second L-shaped rod (7), the box body (4) is internally provided with a hydraulic telescopic rod (14), and the top end of the output shaft of the hydraulic telescopic rod (14) is fixedly connected to the center of the other side of the vertical side of the second L-shaped rod (7).
6. The light box installation structure for exhibition hall design according to claim 3, wherein the moving mechanism comprises a first pulley (18), a second pulley (21) and a belt (20), the first pulley (18), the second pulley (21) and the belt (20) are all rotatably connected inside the box body (4), the belt (20) is sleeved on the first pulley (18) and the second pulley (21), the first pulley (18) and the second pulley (21) are arranged in parallel, the upper transverse edge of the belt (20) passes through the vertical edge of the first L-shaped rod (3) and is adhered inside the vertical edge of the first L-shaped rod (3), the lower transverse edge of the belt (20) passes through the vertical edge of the first L-shaped rod (3) and is slidably connected inside the vertical edge of the first L-shaped rod (3), the upper transverse edge of the belt (20) passes through the vertical edge of the second L-shaped rod (7) and is slidably connected inside the vertical edge of the second L-shaped rod (7), and the lower transverse edge of the belt (20) passes through the vertical edge of the second L-shaped rod (7) and is adhered to the inside of the vertical edge of the second L-shaped rod (7).
7. The light box installation structure for exhibition hall design according to claim 6, wherein the second forward and reverse motor (19) is installed on one side of the inside of the box body (4), and the top end of the output shaft of the second forward and reverse motor (19) is fixedly connected to the center of one side of the first pulley (18).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010649821.3A CN111768724A (en) | 2020-07-08 | 2020-07-08 | Lamp house mounting structure is used in exhibition hall design |
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| CN202010649821.3A CN111768724A (en) | 2020-07-08 | 2020-07-08 | Lamp house mounting structure is used in exhibition hall design |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113021221A (en) * | 2021-03-25 | 2021-06-25 | 中山市朗迪电器有限公司 | Fastener for oblique flow centrifugal fan blade |
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| CN109340518A (en) * | 2018-11-28 | 2019-02-15 | 南昌科悦企业管理咨询有限公司 | A kind of easy to disassemble and wall-mounted computer display screen securely |
| CN209029059U (en) * | 2018-12-14 | 2019-06-25 | 四川农业大学 | A kind of Forest Park billboard being easily installed |
| CN209151257U (en) * | 2019-01-21 | 2019-07-23 | 深圳市看门神电子有限公司 | A kind of compensation wireless monitoring video camera being easily installed |
| CN210004114U (en) * | 2019-04-10 | 2020-01-31 | 威海东山精密光电科技有限公司 | LED display screen convenient to hang |
| CN210662183U (en) * | 2019-07-16 | 2020-06-02 | 南京美仙电子科技有限公司 | Wall-mounted advertising machine |
| CN210110256U (en) * | 2019-08-07 | 2020-02-21 | 重庆励境展览展示有限公司 | Movable three-dimensional printing opacity exhibition case |
| CN210344823U (en) * | 2019-08-24 | 2020-04-17 | 重庆瑞信展览有限公司 | Display module exhibition wall mounting structure |
| CN210831341U (en) * | 2019-11-16 | 2020-06-23 | 梦之源(北京)科技有限公司 | Business guide display screen suspension mechanism |
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| CN113021221A (en) * | 2021-03-25 | 2021-06-25 | 中山市朗迪电器有限公司 | Fastener for oblique flow centrifugal fan blade |
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