CN108991857A - A kind of teaching easy to remove displaying device - Google Patents
A kind of teaching easy to remove displaying device Download PDFInfo
- Publication number
- CN108991857A CN108991857A CN201810993058.9A CN201810993058A CN108991857A CN 108991857 A CN108991857 A CN 108991857A CN 201810993058 A CN201810993058 A CN 201810993058A CN 108991857 A CN108991857 A CN 108991857A
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- plate
- fixed plate
- fixedly connected
- connecting rod
- far
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
- A47F5/00—Show stands, hangers, or shelves characterised by their constructional features
- A47F5/10—Adjustable or foldable or dismountable display stands
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
- A47F7/00—Show stands, hangers, or shelves, adapted for particular articles or materials
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/02—Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip
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- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Handcart (AREA)
Abstract
The invention discloses a kind of teaching easy to remove displaying devices, including firm banking, the top of firm banking is fixedly connected with elevating lever, the two sides lower end of elevating lever is fixedly connected to the second fixed plate, second fixed plate is inserted with screw rod far from one end of firm banking, screw rod sequentially passes through the second fixed plate of place and firm banking close to one end of the second fixed plate of place, all extend to the bottom end of firm banking, the present invention is a displaying device, the present invention is by having set bottom plate and pressing plate in the third fixed plate of invention, when can be convenient for class-teaching of teacher, place the sample for needing to show, it avoids needing hand to hold sample when class-teaching of teacher and influencing to attend class to student, the present invention is by having set cover board in the third fixed plate of invention, the sample that can be shown convenient for protection, it avoids sample unexpected and is damaged, the present invention is by inventing The lower end of firm banking set universal wheel, can sample easy to remove.
Description
Technical field:
The invention belongs to show engineering device technique field, in particular to a kind of teaching easy to remove displaying device.
Background technique:
Currently, teacher at school during, when needing to show sample, be all by holding sample with hand, over time, religion
Teacher's arm, which is easy to happen, aches, and is unfavorable for teacher and attends class to students, when sample is placed, is easy to be damaged because of accident, move
It is more inconvenient when dynamic.
Summary of the invention:
The object of the invention is that a kind of teaching easy to remove displaying device is provided to solve the above-mentioned problems,
Solve currently, teacher at school during, be all by holding sample, over time, teacher with hand when needing to show sample
Arm, which is easy to happen, aches, and is unfavorable for teacher and attends class to students, when sample is placed, is easy to be damaged because of accident, mobile
When more inconvenient disadvantage.
To solve the above-mentioned problems, the present invention provides a kind of technical solutions:
A kind of teaching use displaying device easy to remove, including firm banking, the top of the firm banking are fixedly connected
There is elevating lever, the two sides lower end of the elevating lever is fixedly connected to the second fixed plate, and second fixed plate is far from fixed bottom
One end of seat is inserted with screw rod, and the screw rod sequentially passes through the second fixed plate of place close to one end of the second fixed plate of place
And firm banking, the bottom end of the firm banking is all extended to, the screw rod is connected with close to one end of firm banking
First rotating disc, the lower end of first rotating disc are fixedly connected to the first fixed plate, and the screw rod is solid far from place second
One end of fixed board is fixedly connected to fixed disk, and the upper end of the fixed disk is fixedly connected to rocking bar, the elevating lever it is upper
End is fixedly connected with third fixed plate, and the side of the third fixed plate is connected with cover board, the lid by first axle
The distance between the distance between plate two sides and third fixed plate two sides are identical, and the cover board passes through far from the side of first axle
Second hinge is connected with connection buckle, and the cover board is fixedly connected with handle, the handle far from one end of third fixed plate
It is equipped with Anti-slip cover, the third fixed plate is fixedly connected with link block, the link block and connection buckle far from the side of cover board
Match, the bottom end of the firm banking is fixedly connected there are four universal wheel, and four universal wheels are located at firm banking
Four corner of bottom end.
Preferably, the elevating lever includes first connecting rod, and the first connecting rod and third connecting rod, the third
Connecting rod is equipped with the second through slot inside one end of first connecting rod, and the inside of second through slot is equipped with internal screw thread, described
First connecting rod is equipped with the first through slot inside one end of third connecting rod, and the first connecting rod is far from third connecting rod
The second rotating disc is fixedly connected with inside one end, second rotating disc is connected with second close to one end of third connecting rod
The diameter of connecting rod, second connecting rod is identical as the diameter of the diameter of the first through slot and the second through slot, second connection
Bar sequentially passes through the first through slot and the second through slot far from one end of the second rotating disc, extends to the inside of the third connecting rod,
One end that second connecting rod is located inside third connecting rod is fixedly connected with baffle, the distance between described baffle two sides ratio
The distance between second through slot two sides are big, are fixedly connected with fixes sleeve in the middle part of second connecting rod.
Preferably, the top of the third fixed plate is set, there are two sliding slot, the inside of the two sliding slots companies of sliding
It is connected to sliding block, the sliding block is fixedly connected to two the first connecting plates, the same cunning far from one end of third fixed plate
It is connected with the first movable axis between two the first connecting plates being arranged on block, is fixedly connected on first movable axis
There is the first supporting plate, placement plate, the placement plate packet are fixedly connected between the described one end of first supporting plate far from third fixed plate
Bottom plate is included, the bottom plate is connected with pressing plate by third hinge close to one end of third fixed plate, and the pressing plate is far from
Triple hinged one end is equipped with groove, and the inside of the groove is removably connected with bolt, and the back side of the bottom plate is equipped with several
Card slot, the top of the third fixed plate are fixedly connected there are two the second connecting plate, and two second connecting plates are respectively positioned on the
Three fixed plate tops are connected with the second movable axis, institute between the side of first axle, two second connecting plates
It states and is fixedly connected with the second supporting plate on the second movable axis, second supporting plate inserts in the bottom plate back side far from one end of the second movable axis
Inside the card slot of setting.
Preferably, second connecting rod is equipped with external screw thread outside one end of third connecting rod, described second connects
Extension bar is threadedly coupled by external screw thread with the internal screw thread being arranged on the inside of the second through slot close to one end of third connecting rod.
Preferably, third fixed plate top is fixedly connected with telescopic rod far from the side of first axle, it is described to stretch
The distance between contracting bar upper and lower side is bigger close to the distance between one end of third fixed plate and third fixed plate than placement plate.
Preferably, two second connecting plates are respectively positioned between two sliding slots, above and below two second connecting plates
The distance between end is identical with the distance between two the first connecting plate upper and lower sides.
Preferably, the lower end of first fixed plate is fixedly connected to stabilizer blade, the stabilizer blade is solid far from place first
One end of fixed board is equipped with non-slip mat.
Preferably, width of the width between two first connecting plates than ipsilateral first supporting plate is wide, two institutes
The width stated between the second connecting plate is wider than the width of the second supporting plate.
Beneficial effects of the present invention: the present invention is a displaying device, and the present invention passes through in the third fixed plate of invention
If bottom plate and pressing plate, when can be convenient for class-teaching of teacher, the sample for needing to show is placed, avoids needing hand to hold sample when class-teaching of teacher
Product and influence to attend class to student, the present invention by having set cover board in the third fixed plate of invention, can convenient for protection show sample
Product avoid sample unexpected and are damaged, and the present invention has set universal wheel by the lower end of the firm banking in invention, can be convenient for shifting
Dynamic sample.
Detailed description of the invention:
Detailed description will be given by the following detailed implementation and drawings by the present invention for ease of explanation,.
Fig. 1 is main view of the invention；
Fig. 2 is right side view of the invention；
Fig. 3 is enlarged structure schematic diagram at A of the invention；
Fig. 4 is enlarged structure schematic diagram at B of the invention；
Fig. 5 is the structural schematic diagram of elevating lever of the present invention；
Fig. 6 is the structural schematic diagram of third fixed plate of the present invention；
Fig. 7 is the structural schematic diagram at the bottom plate back side of the present invention；
Fig. 8 is the structural schematic diagram of pressing plate of the present invention.
In figure: 1- firm banking, 2- screw rod, the first rotating disc of 3-, the first fixed plate of 4-, 5- stabilizer blade, 6- fixed disk, 7- shake
Bar, 8- elevating lever, the second fixed plate of 9-, 10- third fixed plate, 11- link block, 12- first axle, 13- cover board, 14- second
Hinge, 15- connection buckle, 16- universal wheel, 17- first connecting rod, the second rotating disc of 18-, the first through slot of 19-, 20- fixes sleeve,
The second connecting rod of 21-, 22- third connecting rod, 23- external screw thread, the second through slot of 24-, 25- internal screw thread, 26- baffle, 27- sliding slot,
28- sliding block, the first connecting plate of 29-, the first supporting plate of 30-, the first movable axis of 31-, 32- placement plate, 33- bottom plate, 34- third hinge
Chain, 35- pressing plate, 36- groove, 37- bolt, 38- card slot, the second connecting plate of 39-, the second supporting plate of 40-, the second movable axis of 41-,
42- telescopic rod, 43- handle.
Specific embodiment:
As shown in figures 1-8, present embodiment uses following technical scheme: a kind of teaching easy to remove displaying dress
It sets, including firm banking 1, the top of the firm banking 1 is fixedly connected with elevating lever 8, and the two sides lower end of the elevating lever 8 is equal
It is fixedly connected with the second fixed plate 9, the described one end of second fixed plate 9 far from firm banking 1 is inserted with screw rod 2, the spiral shell
Bar 2 sequentially passes through the second fixed plate 9 of place and firm banking 1 close to one end of the second fixed plate of place 9, all extends to described
The bottom end of firm banking 1, the screw rod 2 are connected with the first rotating disc 3 close to one end of firm banking 1, and described first
The lower end of rotating disc 3 is fixedly connected to the first fixed plate 4, and the one end of the screw rod 2 far from the second fixed plate of place 9 is fixed
It is connected with fixed disk 6, the upper end of the fixed disk 6 is fixedly connected to rocking bar 7, and the upper end of the elevating lever 8 is fixedly connected with
The side of third fixed plate 10, the third fixed plate 10 is connected with cover board 13, the cover board 13 by first axle 12
The distance between the distance between two sides and 10 two sides of third fixed plate are identical, the side of the cover board 13 far from first axle 12
It is connected with connection buckle 15 by second hinge 14, the cover board 13 is fixedly connected with handle far from one end of third fixed plate 10
Hand 43, the handle 43 are equipped with Anti-slip cover, and the third fixed plate 10 is fixedly connected with link block far from the side of cover board 13
11, the link block 11 matches with connection buckle 15, and the bottom end of the firm banking 1 is fixedly connected there are four universal wheel 16, and four
A universal wheel 16 is located at four corner of bottom end of firm banking 1.
Wherein, the elevating lever 8 includes first connecting rod 17, the first connecting rod 17 and third connecting rod 22, described
Third connecting rod 22 is equipped with the second through slot 24 inside one end of first connecting rod 17, and the inside of second through slot 24 is equipped with
Internal screw thread 25, the first connecting rod 17 are equipped with the first through slot 19 inside one end of third connecting rod 22, and described first connects
Extension bar 17 is fixedly connected with the second rotating disc 18 inside one end far from third connecting rod 22, second rotating disc 18 is close to
One end of three connecting rods 22 is connected with the second connecting rod 21, and the diameter of second connecting rod 21 is straight with the first through slot 19
The diameter of diameter and the second through slot 24 is identical, and (21 one end far from the second rotating disc 18 sequentially pass through first to second connecting rod
Through slot 19 and the second through slot 24, extend to the inside of the third connecting rod 22, and second connecting rod 21 is located at third connection
One end inside bar 22 is fixedly connected with baffle 26, and the distance between described 26 two sides of baffle are than between 24 two sides of the second through slot
Distance is big, and the middle part of second connecting rod 21 is fixedly connected with fixes sleeve 20.
Wherein, the top of the third fixed plate 10 is set there are two sliding slot 27, and the inside of two sliding slots 27 is slided
It is connected with sliding block 28, the sliding block 28 is fixedly connected to two the first connecting plates 29 far from one end of third fixed plate 10, together
The first movable axis 31 is connected between two the first connecting plates 29 being arranged on one sliding block 28, described first is living
The first supporting plate 30, fixed company between the described one end of first supporting plate 30 far from third fixed plate 10 are fixedly connected on moving axis 31
It is connected to placement plate 32, the placement plate 32 includes bottom plate 33, and the bottom plate 33 passes through third close to one end of third fixed plate 10
Hinge 34 is connected with pressing plate 35, and the pressing plate 35 is equipped with groove 36 far from one end of third hinge 34, the groove 36
Inside is removably connected with bolt 37, and the back side of the bottom plate 33 is equipped with several card slots 38, the top of the third fixed plate 10
End is fixedly connected there are two the second connecting plate 39, and two second connecting plates 39 are respectively positioned on 10 top of third fixed plate close to the
The side of one hinge 12 is connected with the second movable axis 41, second movable axis between two second connecting plates 39
The second supporting plate 40 is fixedly connected on 41, second supporting plate 40 inserts in 33 back side of bottom plate far from one end of the second movable axis 41 and sets
Inside the card slot 38 set.
Wherein, second connecting rod 21 close to third connecting rod 22 one end outside be equipped with external screw thread 23, described second
Connecting rod 21 passes through 25 screw thread of internal screw thread being arranged on the inside of external screw thread 23 and the second through slot 24 close to one end of third connecting rod 22
Connection.
Wherein, 10 top of third fixed plate is fixedly connected with telescopic rod 42 far from the side of first axle 12, described
The distance between 42 upper and lower side of telescopic rod is than placement plate 32 between one end and third fixed plate 10 of third fixed plate 10
Distance is big.
Wherein, two second connecting plates 39 are respectively positioned between two sliding slots 27, on two second connecting plates 39
The distance between lower end is identical with the distance between two 29 upper and lower sides of the first connecting plate.
Wherein, the lower end of first fixed plate 4 is fixedly connected to stabilizer blade 5, and the stabilizer blade 5 is fixed far from place first
One end of plate 4 is equipped with non-slip mat.
Wherein, width of the width between two first connecting plates 29 than ipsilateral first supporting plate 30 is wide, two institutes
The width stated between the second connecting plate 39 is wider than the width of the second supporting plate 40.
It is specific: a kind of teaching easy to remove displaying device, before use, the present invention is moved to the place attended class,
Fixed disk 6 is rotated by rocking bar 7, moves downward screw rod 2, when the stabilizer blade 5 and ground face contact of the setting of 2 lower end of screw rod, continues to turn
Dynamic screw rod 2, until universal wheel 16 is detached from ground, separately cover board 13, is turned to by connection buckle 15 and link block 11 by handle 43
Bolt 37 is unloaded in the side of third fixed plate 10, and pressing plate 35 is opened from bottom plate 33, sample is placed on bottom plate 33, is covered
Bolt 37 is installed go back to original position by pressing plate 35, and placement plate 32 is lifted from third fixed plate 10, by 28 activity of sliding block
Side to sliding slot 27 far from cover board 13, then the second supporting plate 40 is lifted, then make sliding block 28 to close to the second supporting plate 40
Direction movement, until the second supporting plate 40 is stuck in far from one end of the second movable axis 41 in the card slot 38 of the setting at 33 back side of bottom plate
Telescopic rod 42 is stretched to maximum length by portion, when needing to adjust the height of third fixed plate 10, passes through the rotation of fixes sleeve 20 the
Two connecting rods 21 make an end motion of the third connecting rod 22 to the second connecting rod 21 far from first connecting rod 17, until third is solid
Fixed board 10 reaches height required for our, and after school end, placement plate 32 and the second supporting plate 40 are moved go back to original position,
Elevating lever 8 is restored to original state, covers cover board 13, connection buckle 15 is buckled on link block 11, it is anti-again by rocking bar 7
To rotation screw rod 2, until stabilizer blade 5 is detached from ground, universal wheel 16 and ground face contact, the mobile present invention.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention, the technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention, the claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (8)
1. a kind of teaching easy to remove displaying device, including firm banking (1), which is characterized in that the firm banking (1)
Top be fixedly connected with elevating lever (8), the two sides lower end of the elevating lever (8) is fixedly connected to the second fixed plate (9), institute
It states the second fixed plate (9) to be inserted with screw rod (2) far from the one end of firm banking (1), the screw rod (2) is solid close to place second
The second fixed plate (9) and firm banking (1), all extend to the firm banking (1) where one end of fixed board (9) sequentially passes through
Bottom end, the screw rod (2) is connected with the first rotating disc (3) close to the one end of firm banking (1), first rotation
The lower end of disk (3) is fixedly connected to the first fixed plate (4), and the one end of the screw rod (2) far from the second fixed plate of place (9) is equal
Be fixedly connected with fixed disk (6), the upper end of the fixed disk (6) is fixedly connected to rocking bar (7), the elevating lever (8) it is upper
End is fixedly connected with third fixed plate (10), and the side of the third fixed plate (10) is connected with by first axle (12)
Cover board (13), identical, the lid in the distance between the distance between described cover board (13) two sides third fixed plate (10) two sides
Side of the plate (13) far from first axle (12) is connected with connection buckle (15) by second hinge (14), the cover board (13)
One end far from third fixed plate (10) is fixedly connected with handle (43), and the handle (43) is equipped with Anti-slip cover, the third
Fixed plate (10) is fixedly connected with link block (11) far from the side of cover board (13), the link block (11) and connection buckle (15) phase
Matching, the bottom end of the firm banking (1) are fixedly connected there are four universal wheel (16), and four universal wheels (16) are located at
Four corner of bottom end of firm banking (1).
2. one kind according to claim 1 teaching easy to remove displaying device, it is characterised in that: the elevating lever
It (8) include first connecting rod (17), the first connecting rod (17) and third connecting rod (22), the third connecting rod (22) are leaned on
The second through slot (24) are equipped with inside one end of nearly first connecting rod (17), the inside of second through slot (24) is equipped with internal screw thread
(25), the first connecting rod (17) is equipped with the first through slot (19) inside the one end of third connecting rod (22), and described first
It is fixedly connected with the second rotating disc (18) inside one end of connecting rod (17) separate third connecting rod (22), second rotating disc
(18) one end close to third connecting rod (22) is connected with the second connecting rod (21), the diameter of second connecting rod (21)
Identical as the diameter of the diameter of the first through slot (19) and the second through slot (24), second connecting rod (21) is far from the second rotating disc
(18) one end sequentially passes through the first through slot (19) and the second through slot (24), extends to the inside of the third connecting rod (22),
Second connecting rod (21) is located at the internal one end of third connecting rod (22) and is fixedly connected with baffle (26), the baffle (26)
The distance between two sides are bigger than the distance between the second through slot (24) two sides, are fixedly connected in the middle part of second connecting rod (21)
There are fixes sleeve (20).
3. one kind according to claim 1 teaching easy to remove displaying device, it is characterised in that: the third is fixed
The top of plate (10) is set there are two sliding slot (27), and the inside of two sliding slots (27) slidably connects sliding block (28), described
Sliding block (28) is fixedly connected to two the first connecting plates (29), the same sliding block far from the one end of third fixed plate (10)
(28) it is connected with the first movable axis (31) between two the first connecting plates (29) being arranged on, first movable axis
(31) it is fixedly connected on the first supporting plate (30), first supporting plate (30) is far from solid between the one end of third fixed plate (10)
Surely it is connected with placement plate (32), the placement plate (32) includes bottom plate (33), and the bottom plate (33) is close to third fixed plate (10)
One end be connected with pressing plate (35) by third hinge (34), the pressing plate (35) sets far from the one end of third hinge (34)
The inside of fluted (36), the groove (36) is removably connected with bolt (37), the bottom plate (33) if the back side be equipped with
Dry card slot (38), the top of the third fixed plate (10) are fixedly connected there are two the second connecting plate (39), and two described second
Connecting plate (39) is respectively positioned on third fixed plate (10) top close to the side of first axle (12), two second connecting plates
(39) it is connected between the second movable axis (41), is fixedly connected with the second supporting plate (40) on second movable axis (41),
Second supporting plate (40) is internal far from the card slot (38) that the one end of the second movable axis (41) inserts in the setting of bottom plate (33) back side.
4. one kind according to claim 2 teaching easy to remove displaying device, it is characterised in that: second connection
Bar (21) is equipped with external screw thread (23) outside the one end of third connecting rod (22), and second connecting rod (21) connects close to third
One end of extension bar (22) is threadedly coupled by external screw thread (23) with the internal screw thread (25) being arranged on the inside of the second through slot (24).
5. one kind according to claim 1 teaching easy to remove displaying device, it is characterised in that: the third is fixed
Plate (10) top is fixedly connected with telescopic rod (42) far from the side of first axle (12), between telescopic rod (42) upper and lower side
Distance than placement plate (32) close to the one end of third fixed plate (10) and the distance between third fixed plate (10) greatly.
6. one kind according to claim 3 teaching easy to remove displaying device, it is characterised in that: two described second
Connecting plate (39) is respectively positioned between two sliding slots (27), the distance between two described second connecting plate (39) upper and lower sides and two
The distance between a first connecting plate (29) upper and lower side is identical.
7. one kind according to claim 1 teaching easy to remove displaying device, it is characterised in that: described first is fixed
The lower end of plate (4) is fixedly connected to stabilizer blade (5), and the stabilizer blade (5) is equipped with anti-far from one end of the first fixed plate of place (4)
Skidding.
8. one kind according to claim 3 teaching easy to remove displaying device, it is characterised in that: two described first
Width of the width than ipsilateral first supporting plate (30) between connecting plate (29) is wide, between two second connecting plates (39)
Width is wider than the width of the second supporting plate (40).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810993058.9A CN108991857A (en) | 2018-08-29 | 2018-08-29 | A kind of teaching easy to remove displaying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810993058.9A CN108991857A (en) | 2018-08-29 | 2018-08-29 | A kind of teaching easy to remove displaying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108991857A true CN108991857A (en) | 2018-12-14 |
Family
ID=64593954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810993058.9A Pending CN108991857A (en) | 2018-08-29 | 2018-08-29 | A kind of teaching easy to remove displaying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108991857A (en) |
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| CN113057468A (en) * | 2021-03-05 | 2021-07-02 | 王明容 | Red wine display cabinet with ventilation function |
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|---|---|---|---|---|
| CN110710834A (en) * | 2019-11-28 | 2020-01-21 | 江苏百宏智能科技有限公司 | Metal product display rack |
| CN113057468A (en) * | 2021-03-05 | 2021-07-02 | 王明容 | Red wine display cabinet with ventilation function |
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Application publication date: 20181214 |