CN108968457A - A kind of Machine Design displaying device for being convenient for placing drawing - Google Patents
A kind of Machine Design displaying device for being convenient for placing drawing Download PDFInfo
- Publication number
- CN108968457A CN108968457A CN201810631805.4A CN201810631805A CN108968457A CN 108968457 A CN108968457 A CN 108968457A CN 201810631805 A CN201810631805 A CN 201810631805A CN 108968457 A CN108968457 A CN 108968457A
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- wall
- welded
- transverse slat
- side outer
- displaying device
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- 230000001681 protective effect Effects 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims description 13
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 239000004744 fabric Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000013558 reference substance Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B97/00—Furniture or accessories for furniture, not provided for in other groups of this subclass
- A47B97/02—Devices for holding or supporting maps, drawings, or the like, including means for preventing rolling-up
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- Handcart (AREA)
- Steps, Ramps, And Handrails (AREA)
Abstract
The invention belongs to drawing display technique fields, especially a kind of Machine Design is used to place the displaying device of drawing, show that fixed device design is inconvenient to use for a kind of mechanical drawing teaching drawing, the problem of needing more people operation, now propose following scheme, including placement plate, the placement plate top exterior walls and bottom outer wall are respectively welded the first connection transverse slat and the second connection transverse slat, and first connection transverse slat side outer wall be provided with first sliding groove, the first sliding groove opposite sides inner wall is welded with the same slide bar, and slide bar side outer wall slidably connects the first moving slide block, first moving slide block is adapted with first sliding groove specification, the second connection transverse slat side outer wall is provided with second sliding slot, and second sliding slot side inner wall slidably connects the second moving slide block.The present invention not only reduces manual labor's intensity, prevents fold and breakage, influences the reuse of drawing, and generate certain protective capability to drawing, increases drawing bandwagon effect.
Description
Technical field
It is used the present invention relates to drawing display technique field more particularly to a kind of Machine Design convenient for placing the displaying of drawing dress
It sets.
Background technique
Mechanical drawing is that mechanical planform, size, working principle and technical requirements are definitely indicated with drawing
Subject.Teaching request for mechanical drawing field is also to be continuously improved, and in teaching, not only to utilize teaching material, also to take
Reference substance of the various drawings as teaching, allows student that can more directly observe and understand mechanical drawing, but due to not closing
Suitable showing stand, makes troubles to teaching, needs to be suspended on design drawing on hanging plate and impart knowledge to students, for convenience, usually all
Transparent rubberized fabric is directly used, design drawing is fixed on hanging plate, although easy to operate, this method tool is had disadvantages that:
Design drawing is inconvenient to move；Transparent rubberized fabric is torn it down inconvenience from hanging plate；Transparent rubberized fabric uses a period of time sticky meeting
It substantially reduces.
Through retrieving, Chinese patent grant number is the patent of CN206659514U, discloses a kind of mechanical drawing teaching figure
Paper shows fixed device, including vertically connecting and upper surface is respectively arranged with the supporting track, transition track and storage rail of sliding slot
Road；Setting is provided with stop sleeve above sliding block there are two sliding block in sliding slot, and stop sleeve interpolation is connected to support rod in succession,
Fastening bolt is threaded on the upper end side wall of stop sleeve；Upper symmetrical socket is provided with two other side on the outside of the support rod of two sides
The height adjustment ring of shape, the outside screw of height adjustment ring are connected with height adjustment bolt.It is had the disadvantage that in above-mentioned patent
It is inconvenient to use, need more people operation and above-mentioned patent not can solve problems, therefore, need a kind of Machine Design with being convenient for putting
Set the displaying device of drawing.
Summary of the invention
Show that fixed device designs technology that is inconvenient to use, needing more people's operations with drawing based on a kind of mechanical drawing teaching
Problem is used the invention proposes a kind of Machine Design convenient for placing the displaying device of drawing.
A kind of Machine Design proposed by the present invention is used convenient for placing the displaying device of drawing, including drawing placement plate, described
Drawing placement plate top exterior walls and bottom outer wall are respectively welded the first connection transverse slat and the second connection transverse slat, and the first connection is horizontal
Plate side outer wall is provided with first sliding groove, and the first sliding groove opposite sides inner wall is welded with the same slide bar, and outside slide bar side
Wall slidably connects the first moving slide block, and first moving slide block is adapted with first sliding groove specification, and second connection is horizontal
Plate side outer wall is provided with second sliding slot, and second sliding slot side inner wall slidably connects the second moving slide block, second movement
Sliding block and the first moving slide block opposite sides outer wall are welded with the same movable plate, the second moving slide block bottom outer wall welding
There are two fixed plates, and two fixed plate opposite sides outer walls are plugged with movable axis, and movable axis side outer wall is socketed with rolling
Wheel, and in idler wheel bottom outer wall position and second sliding slot top exterior walls, the first connection transverse slat is connect outside transverse slat side with second
Wall is welded with the same protective cover, and first connection transverse slat top exterior walls side is welded with motor housing, and in motor housing side
Wall has been bolted motor.
Preferably, described motor output shaft one end is welded with transmission shaft, and transmission shaft is plugged on guarantor far from one end of motor
In shield, transmission shaft side outer wall is socketed with rubber rollers, and movable plate side outer wall is welded with promotion handle, movable plate side outer wall
It is bolted hinge, movable plate is hinged with grip block by hinge, and grip block bottom outer wall is provided with rectangle mounting groove, square
Shape mounting groove side inner wall is bonded with non-slip mat, and movable plate side outer wall is welded with lifting plate, and lifting plate bottom outer wall is provided with
The finger slot of range distribution, movable plate top exterior walls are provided with multiple mounting grooves.
Preferably, the second connection transverse slat connect transverse slat side outer wall with first and is welded with limit plate, and second connects
Transverse slat side outer wall is connect equipped with magnetic force block.
Preferably, the mounting groove bottom interior wall is welded with reset spring, and reset spring top and grip block weld.
Preferably, the second connection transverse slat bottom outer wall is welded with electric lifting rod, and electric lifting rod extension rod bottom
Portion's outer wall is welded with supporting leg.
Preferably, supporting leg bottom outer wall edge is bonded with cushion, and cushion bottom outer wall be provided with it is anti-skidding
Lines, non-slip texture are diamond shape non-slip texture.
Preferably, the supporting leg bottom outer wall is provided with cylindrical mounting groove, and cylindrical mounting groove top inner wall welding
There is hydraulic cylinder.
Preferably, hydraulic cylinder extension rod bottom end has been bolted universal wheel, and universal wheel is equipped with brake
Key.
Preferably, drawing placement plate side outer wall has been bolted operation panel, and outside operation panel side
Wall is equipped with switch, and switch is connect by conducting wire with motor and electric lifting rod.
Preferably, drawing placement plate side outer wall has been bolted control cabinet, and control cabinet side inner wall is logical
It crosses bolt and is fixed with processor, processor signal output end is connected with switch by signal wire.
Having the beneficial effect that in the present invention
1, it is rotated coaxially by the rubber rollers that the setting of motor is able to drive on transmission shaft, mechanical drawing is pushed away to the left
Into movement, manual labor's intensity is reduced, prevents drawing from generating fold and breakage when placing, influences the reuse of drawing.
2, grip block can be allowed to raise certain angle by the setting of lifting plate facilitates drawing one end to put movable plate and folder into
It holds between plate, reset spring resets after unclamping lifting plate, carries out generating certain chucking power to drawing, grip block increases to drawing
Holding area, increasing frictional force prevents drawing from falling off, and non-slip mat generates certain protective capability to drawing, prevents clamping broken
Damage.
3, universal wheel can be promoted by the setting of hydraulic cylinder inside supporting leg, universal wheel is allowed to be higher than support
Leg to reach device can steadily be placed, and hydraulic cylinder allows device integrally to be promoted when extending, and universal wheel contacts ground, side
Just the people that works is moved easily it.
4, by pushing the setting of handle that can be moved to the left the movable plate after gripping, with rubber rollers phase interaction
With, allow drawing support expansion come, be laid in drawing placement plate, improve the flatness of drawing, increase device drawing show
Effect.
5, some small-sized drawings can be fixed in drawing placement plate by the setting of magnetic force block, improves the reality of device
With property and applicability.
Detailed description of the invention
Fig. 1 is that a kind of Machine Design proposed by the present invention is used convenient for placing the front view structure signal of the displaying device of drawing
Figure；
Fig. 2 is that knot is cutd open in a kind of the first connection transverse slat side of displaying device of the Machine Design proposed by the present invention convenient for placement drawing
Structure schematic diagram；
Fig. 3 is that a kind of Machine Design proposed by the present invention uses the master of the displaying device convenient for placement drawing to cut open structural schematic diagram；
Fig. 4 is that a kind of Machine Design proposed by the present invention is used convenient for placing the movable plate sectional structure signal of the displaying device of drawing
Figure；
Fig. 5 is that a kind of Machine Design proposed by the present invention is used convenient for placing the side structure schematic view of the displaying device of drawing.
In figure: 1 drawing placement plate, 2 motor housings, 3 first connection transverse slats, 4 movable plates, 5 hinges, 6 push handle, 7 clampings
Plate, 8 lifting plates, 9 magnetic force blocks, 10 limit plates, 11 second connection transverse slats, 12 electric lifting rods, 13 supporting legs, 14 hydraulic cylinders,
15 universal wheels, 16 first sliding grooves, 17 first moving slide blocks, 18 second moving slide blocks, 19 fixed plates, 20 movable axis, 21 idler wheels, 22
Second sliding slot, 23 reset springs, 24 non-slip mats, 25 refer to slots, 26 mounting grooves, 27 slide bars, 28 motors, 29 transmission shafts, 30 rubber rollers,
31 protective covers, 32 control cabinets, 33 processors, 34 operation panels, 35 switches.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Referring to Fig.1-5, a kind of Machine Design is used convenient for placing the displaying device of drawing, including drawing placement plate 1, and drawing is put
It sets 1 top exterior walls of plate and bottom outer wall is respectively welded the first connection transverse slat 3 and the second connection transverse slat 11, and the first connection transverse slat
3 side outer walls are provided with first sliding groove 16, and 16 opposite sides inner wall of first sliding groove is welded with the same slide bar 27, and 27 side of slide bar
Outer wall slidably connects the first moving slide block 17, and the first moving slide block 17 is adapted with 16 specification of first sliding groove, and the second connection is horizontal
11 side outer wall of plate is provided with second sliding slot 22, and 22 side inner wall of second sliding slot slidably connects the second moving slide block 18, and second
Moving slide block 18 and 17 opposite sides outer wall of the first moving slide block are welded with the same movable plate 4,18 bottom of the second moving slide block
Outer wall is welded with two fixed plates 19, and two 19 opposite sides outer walls of fixed plate are plugged with movable axis 20,20 side of movable axis
Outer wall is socketed with idler wheel 21, and in 21 bottom outer wall position of idler wheel and 22 top exterior walls of second sliding slot, the first connection transverse slat 3 and second
Connection 11 side outer wall of transverse slat is welded with the same protective cover 31, and the first connection 3 top exterior walls side of transverse slat is welded with motor housing
2, and 2 side inner wall of motor housing has been bolted motor 28.
In the present invention, 28 output shaft one end of motor is welded with transmission shaft 29, and transmission shaft 29 is inserted far from one end of motor 28
It connects in protective cover 31,29 side outer wall of transmission shaft is socketed with rubber rollers 30, is able to drive transmission shaft by the setting of motor 28
Rubber rollers 30 on 29 are rotated coaxially, and are carried out advancing movement to the left to mechanical drawing, are reduced manual labor's intensity, prevent figure
Paper generates fold and breakage when placing, and influences the reuse of drawing, and 4 side outer wall of movable plate, which is welded with, pushes handle 6, living
4 side outer wall of movable plate has been bolted hinge, and movable plate 4 is hinged with grip block 7,7 bottom outer wall of grip block by hinge
It is provided with rectangle mounting groove, rectangle mounting groove side inner wall is bonded with non-slip mat 24.
Movable plate side outer wall is welded with lifting plate 8, and 8 bottom outer wall of lifting plate is provided with the finger slot 25 equidistantly distributed, living
4 top exterior walls of movable plate are provided with multiple mounting grooves 26, the second connection transverse slat 11 with first connect 3 side outer wall of transverse slat weld it is limited
Position plate 10, and the second connection 11 side outer wall of transverse slat is equipped with magnetic force block 9, it can be by some thumbanil sketch by the setting of magnetic force block 9
Paper is fixed in drawing placement plate 1, improves the practicability and applicability of device, and 26 bottom interior wall of mounting groove is welded with reset bullet
Spring 23, and 23 top of reset spring and grip block 7 weld, and grip block 7 can be allowed to raise certain angle by the setting of lifting plate 8
Drawing one end is facilitated to put between movable plate 4 and grip block 7, reset spring 23 resets after unclamping lifting plate 8, produces to drawing
Raw certain chucking power, grip block 7 increase the holding area to drawing, and increasing frictional force prevents drawing from falling off, and non-slip mat 24 is right
Drawing generates certain protective capability, prevents clamping damaged, by pushing the setting of handle 6 can be by the activity after gripping
Plate 7 is moved to the left, and is interacted with rubber rollers 30, is allowed drawing support expansion, is laid in 1 in drawing placement plate, improves drawing
Flatness, increase the drawing bandwagon effect of device, the second connection 11 bottom outer wall of transverse slat is welded with electric lifting rod 12, and
12 extension rod bottom outer wall of electric lifting rod is welded with supporting leg 13, and 13 bottom outer wall edge of supporting leg is bonded with cushion,
And cushion bottom outer wall is provided with non-slip texture, non-slip texture is diamond shape non-slip texture, and 13 bottom outer wall of supporting leg is provided with cylinder
Shape mounting groove, and cylindrical mounting groove top inner wall is welded with hydraulic cylinder 14,14 extension rod bottom end of hydraulic cylinder passes through bolt
It is fixed with universal wheel 15, and universal wheel 15 is equipped with brake key, universal wheel 15 can propped up by the setting of hydraulic cylinder 14
It is promoted inside support leg 13, allows universal wheel 15 to be higher than supporting leg 13, to reach device can steadily be placed, hydraulic cylinder
Device is allowed integrally to be promoted when 14 elongation, universal wheel 15 contacts ground, facilitates work people to be moved easily it, drawing placement plate 1 one
Side outer wall has been bolted operation panel 34, and 34 side outer wall of operation panel is equipped with switch 35, and switch 35 passes through conducting wire
It is connect with motor 28 and electric lifting rod 12,1 side outer wall of drawing placement plate has been bolted control cabinet 32, and control cabinet
32 side inner walls have been bolted processor 33, and 33 signal output end of processor is connect by signal wire with switch 35, locate
Manage the model ARM9TDMI of device 33.
In use, starting hydraulic cylinder 14 allows device integrally to be promoted when extending, universal wheel 15 contacts ground, and work source of people pair
It is moved easily to target location, and then hydraulic cylinder 14 promotes universal wheel 15 inside supporting leg 13, allows universal wheel
15 are higher than supporting leg 13, to reach device can steadily be placed, and put one end of drawing into rubber rollers 30 and drawing is placed
Crevice place between plate 1, motor 28 drive the rubber rollers 30 on transmission shaft 29 to be rotated coaxially, are pushed away to the left to mechanical drawing
Into movement, lifting plate 8 allows grip block 7 to raise certain angle, drawing one end is put between movable plate 4 and grip block 7, release mentions
Reset spring 23 resets after lift slab 8, carries out generating certain chucking power to drawing, and grip block 7 increases the holding area to drawing,
Increasing frictional force prevents drawing from falling off, and non-slip mat 24 generates certain protective capability to drawing, prevents clamping damaged, recycling pushes away
Movable plate 7 after dynamic handle 6 will grip is moved to the left, and is interacted with rubber rollers 30, is allowed drawing support expansion, is laid in
1 in drawing placement plate, the flatness of drawing is improved, some small-sized drawings are fixed on drawing additionally by magnetic force block 9 and are placed
On plate 1, the practicability and applicability of device are improved.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of Machine Design is used to place the displaying device of drawing, including drawing placement plate (1), which is characterized in that described
Drawing placement plate (1) top exterior walls and bottom outer wall are respectively welded the first connection transverse slat (3) and the second connection transverse slat (11), and
First connection transverse slat (3) side outer wall is provided with first sliding groove (16), and first sliding groove (16) the opposite sides inner wall is welded with together
One slide bar (27), and slide bar (27) side outer wall slidably connects the first moving slide block (17), first moving slide block
(17) it being adapted with first sliding groove (16) specification, the second connection transverse slat (11) side outer wall is provided with second sliding slot (22), and
Second sliding slot (22) side inner wall slidably connects the second moving slide block (18), second moving slide block (18) and the first movement
Sliding block (17) opposite sides outer wall is welded with the same movable plate (4), and the second moving slide block (18) bottom outer wall is welded with
Two fixed plates (19), and two fixed plate (19) opposite sides outer walls are plugged with movable axis (20), the movable axis (20) one
Side outer wall is socketed with idler wheel (21), and in idler wheel (21) bottom outer wall position and second sliding slot (22) top exterior walls, and described first connects
It connects transverse slat (3) and connect transverse slat (11) side outer wall with second and be welded with the same protective cover (31), first connection transverse slat (3)
Top exterior walls side is welded with motor housing (2), and motor housing (2) side inner wall has been bolted motor (28).
2. a kind of Machine Design according to claim 1 is used to place the displaying device of drawing, which is characterized in that described
Motor (28) output shaft one end is welded with transmission shaft (29), and transmission shaft (29) is plugged on protective cover far from the one end of motor (28)
(31) in, transmission shaft (29) side outer wall is socketed with rubber rollers (30), and movable plate (4) side outer wall, which is welded with, pushes handle (6),
Movable plate (4) side outer wall has been bolted hinge, and movable plate (4) is hinged with grip block (7), grip block by hinge
(7) bottom outer wall is provided with rectangle mounting groove, and rectangle mounting groove side inner wall is bonded with non-slip mat (24), the weldering of movable plate side outer wall
It is connected to lifting plate (8), lifting plate (8) bottom outer wall is provided with the finger slot (25) equidistantly distributed, and movable plate (4) top exterior walls are provided with
Multiple mounting grooves (26).
3. a kind of Machine Design according to claim 1 is used to place the displaying device of drawing, which is characterized in that described
Second connection transverse slat (11) connect transverse slat (3) side outer wall with first and is welded with limit plate (10), and the second connection transverse slat
(11) side outer wall is equipped with magnetic force block (9).
4. a kind of Machine Design according to claim 2 is used to place the displaying device of drawing, which is characterized in that described
Mounting groove (26) bottom interior wall is welded with reset spring (23), and reset spring (23) top and grip block (7) are welded.
5. a kind of Machine Design according to claim 1 is used to place the displaying device of drawing, which is characterized in that described
Second connection transverse slat (11) bottom outer wall is welded with electric lifting rod (12), and electric lifting rod (12) extension rod bottom outer wall is welded
It is connected to supporting leg (13).
6. a kind of Machine Design according to claim 5 is used to place the displaying device of drawing, which is characterized in that described
Supporting leg (13) bottom outer wall edge is bonded with cushion, and cushion bottom outer wall is provided with non-slip texture, and non-slip texture is
Diamond shape non-slip texture.
7. a kind of Machine Design according to claim 6 is used to place the displaying device of drawing, which is characterized in that described
Supporting leg (13) bottom outer wall is provided with cylindrical mounting groove, and cylindrical mounting groove top inner wall is welded with hydraulic cylinder (14).
8. a kind of Machine Design according to claim 7 is used to place the displaying device of drawing, which is characterized in that described
Hydraulic cylinder (14) extension rod bottom end has been bolted universal wheel (15), and universal wheel (15) is equipped with brake key.
9. a kind of Machine Design according to claim 1 is used to place the displaying device of drawing, which is characterized in that described
Drawing placement plate (1) side outer wall has been bolted operation panel (34), and operation panel (34) side outer wall is equipped with and opens
It closes (35), switch (35) is connect by conducting wire with motor (28) and electric lifting rod (12).
10. a kind of Machine Design according to claim 1 is used to place the displaying device of drawing, which is characterized in that institute
It states drawing placement plate (1) side outer wall to be bolted control cabinet (32), and control cabinet (32) side inner wall passes through bolt
It is fixed with processor (33), processor (33) signal output end is connect by signal wire with switch (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810631805.4A CN108968457B (en) | 2018-06-19 | 2018-06-19 | Display device convenient for placing drawings in mechanical design |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810631805.4A CN108968457B (en) | 2018-06-19 | 2018-06-19 | Display device convenient for placing drawings in mechanical design |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108968457A true CN108968457A (en) | 2018-12-11 |
| CN108968457B CN108968457B (en) | 2020-07-03 |
Family
ID=64540711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810631805.4A Active CN108968457B (en) | 2018-06-19 | 2018-06-19 | Display device convenient for placing drawings in mechanical design |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108968457B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109846286A (en) * | 2019-03-13 | 2019-06-07 | 烟台工程职业技术学院(烟台市技师学院) | A kind of Machine Design drawing placement displaying device |
| CN110978856A (en) * | 2019-12-20 | 2020-04-10 | 陕西同力智慧能源服务有限公司 | Drawing hanger for industrial design |
| CN112102756A (en) * | 2020-10-03 | 2020-12-18 | 杨灿 | Advertisement display device for municipal construction |
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| CN107960766A (en) * | 2017-09-27 | 2018-04-27 | 常州信息职业技术学院 | A kind of environment Public Design drawing fixed frame |
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| CN105902000A (en) * | 2016-06-03 | 2016-08-31 | 王芳 | Display device for film and television writing and directing major study |
| CN206249663U (en) * | 2016-10-14 | 2017-06-13 | 王友强 | A kind of Graphic Panel of geographical teaching |
| CN206322327U (en) * | 2016-11-16 | 2017-07-11 | 阿坝师范学院 | A kind of geography teaching map paper showing stand |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109846286A (en) * | 2019-03-13 | 2019-06-07 | 烟台工程职业技术学院(烟台市技师学院) | A kind of Machine Design drawing placement displaying device |
| CN110978856A (en) * | 2019-12-20 | 2020-04-10 | 陕西同力智慧能源服务有限公司 | Drawing hanger for industrial design |
| CN112102756A (en) * | 2020-10-03 | 2020-12-18 | 杨灿 | Advertisement display device for municipal construction |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108968457B (en) | 2020-07-03 |
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