CN111179682A - Novel electric installation and building training examination device - Google Patents

Novel electric installation and building training examination device Download PDF

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Publication number
CN111179682A
CN111179682A CN202010052070.7A CN202010052070A CN111179682A CN 111179682 A CN111179682 A CN 111179682A CN 202010052070 A CN202010052070 A CN 202010052070A CN 111179682 A CN111179682 A CN 111179682A
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CN
China
Prior art keywords
connecting block
positioning
main shaft
rotating main
plate
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Granted
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CN202010052070.7A
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Chinese (zh)
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CN111179682B (en
Inventor
邓爽
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Chongqing Industry Polytechnic College
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Chongqing Industry Polytechnic College
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Priority to CN202010052070.7A priority Critical patent/CN111179682B/en
Publication of CN111179682A publication Critical patent/CN111179682A/en
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Publication of CN111179682B publication Critical patent/CN111179682B/en
Expired - Fee Related legal-status Critical Current
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B9/00Simulators for teaching or training purposes

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Physics & Mathematics (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • General Physics & Mathematics (AREA)
  • Instructional Devices (AREA)

Abstract

The invention discloses a novel electrical installation and building practical training examination device which comprises an operation cabinet, a plurality of fixed support columns positioned at the bottom of the operation cabinet and fixed bottom columns positioned at the bottoms of the fixed support columns, wherein a positioning plate is fixedly connected between the two fixed support columns, a plurality of positioning holes are uniformly formed in the surface of the positioning plate, the surface of the positioning plate is detachably connected with a display screen, a plurality of first connecting blocks are symmetrically distributed on one side of the display screen, and a second connecting block is movably connected to one side of each first connecting block; through the setting of first connecting block, second connecting block, very big increase the practicality of real device of instructing, use through the cooperation of first connecting block, second connecting block, can install fixedly to the display screen for the fixed comparatively simple convenient of display screen has reduced the condition that the display screen drops, damages, has guaranteed the normal progress of teaching, and is convenient for separate, has improved the availability factor of real device of instructing.

Description

Novel electric installation and building training examination device
Technical Field
The invention relates to the technical field, in particular to a novel electrical installation and building practical training assessment device.
Background
At present, professional or work species such as factory and indoor electrical installation, building automation are being carried out in professional colleges and universities and factory training to carry out real standard operation for the student carries out effectual exercise and study, but actual operation has not only increased student's interest in study, and teacher's teaching of being convenient for simultaneously makes the student meet the orbit with the work content in school's study content, has improved teaching efficiency.
The existing device is difficult to fix objects, the device is not provided with a wall body and is a multi-cavity iron plate, so that the object fixing process is very complex, the practical training effect is difficult to achieve, articles needing to be fixed can fall and be damaged, economic loss is brought, the normal progress of teaching is delayed, the practical training device is large in size and occupies a very large space, and the work difficulty is brought.
Disclosure of Invention
The invention aims to solve the defects that the existing device in the prior art is difficult to fix objects, the device is not provided with a wall body and is a porous iron plate, so that the object fixing is very complicated, the practical training effect is difficult to achieve, articles needing to be fixed can fall and be damaged, economic loss is caused, the normal progress of teaching is delayed, and the like, and the novel electric installation and building practical training assessment device is provided.
In order to achieve the purpose, the invention adopts the following technical scheme: a novel electric installation and building training assessment device comprises an operation cabinet, a plurality of fixed pillars arranged at the bottom of the operation cabinet and fixed bottom pillars arranged at the bottoms of the fixed pillars, a positioning plate is fixedly connected between the two fixed pillars, a plurality of positioning holes are uniformly formed in the surface of the positioning plate, a display screen is detachably connected to the surface of the positioning plate, a plurality of first connecting blocks are symmetrically distributed on one side of the display screen, a second connecting block is movably connected to one side of each first connecting block, the shape and size of each first connecting block are consistent with those of the positioning holes, the first connecting blocks and the positioning holes are in clearance fit, a connecting plate arranged in each first connecting block is fixedly connected to one side, close to each first connecting block, of each second connecting block, a reset spring is movably connected to the bottom of each connecting plate, and a reset lug arranged in each connecting plate is fixedly connected to the top of each reset spring, a reset sliding groove matched with the reset bump is formed in the connecting plate, and one side, close to the first connecting block, of the second connecting block is fixedly connected with a positioning block located right below the connecting plate;
two connecting support rods are installed between the two fixed bottom posts, a rotating main shaft is rotatably connected at the position where the two connecting support rods are connected, one end, far away from the rotating main shaft, of each connecting support rod is rotatably connected with a first adjusting shaft, the outer ring of the first adjusting shaft is connected with the fixed bottom posts, the inner ring of the first adjusting shaft is connected with the rotating main shaft, L-shaped plates matched with the connecting support rods are arranged at two ends of each fixed bottom post, accommodating grooves matched with the connecting support rods are formed in the side walls of the fixed bottom posts, positioning bolts are rotatably connected at the top ends of the rotating main shaft, and adjusting pulleys are arranged at the bottom ends of the rotating main shaft;
the bottom of operation cabinet is located the top of fixed foundation and is equipped with the dead lever, one side swing joint of dead lever has the detection cabinet, the middle part of dead lever is equipped with a plurality of bracing pieces, the lateral wall of detecting the cabinet rotates and is connected with a plurality of positioning disks, the circular recess that uses with the positioning disk cooperation is seted up to the lateral wall of bracing piece, the connection spout has been seted up on the surface of bracing piece, just connection spout, circular recess communicate with each other.
Furthermore, the material of locating piece is magnet, the material of locating plate is iron material.
Furthermore, the length of the reset sliding chute is smaller than that of the connecting plate.
Further, the length of the second connecting block is smaller than that of the first connecting block, and the width of the second connecting block is smaller than that of the first connecting block.
Furthermore, the length of the accommodating groove is greater than that of the connecting support rod, and the width of the accommodating groove is greater than that of the connecting support rod.
Furthermore, one end of one connecting support rod is connected with the outer ring of the rotating main shaft, and one end of the other connecting support rod is connected with the inner ring of the rotating main shaft.
Furthermore, the circle centers of the positioning bolt and the rotating main shaft are coaxial.
Further, the diameter of the circular groove is larger than that of the positioning disc.
Furthermore, an operating computer is placed at the top of the fixed bottom column.
Compared with the prior art, the invention has the beneficial effects that:
1. through the setting of first connecting block, second connecting block, very big increase the practicality of real device of instructing, use through the cooperation of first connecting block, second connecting block, can install fixedly to the display screen for the fixed comparatively simple convenient of display screen has reduced the condition that the display screen drops, damages, has guaranteed the normal progress of teaching, and is convenient for separate, has improved the availability factor of real device of instructing.
2. Through the setting of rotary main shaft, connecting strut, improved the functional of real device of instructing, through the setting of rotary main shaft, connecting strut, be convenient for instruct receiving and releasing of device in fact for real device of instructing is collapsible, has reduced the occupation in space, and easy operation is convenient, has saved the time, and the simple operation is convenient simultaneously, is convenient for open the use next time, has reduced the work degree of difficulty.
3. Through the setting of positioning disk, circular recess for the installation of detecting the cabinet is more stable, uses through the cooperation of positioning disk, circular recess, has reduced rocking of detecting the cabinet, makes to detect the cabinet and is connected more stably with real device of instructing, and the installation degree of difficulty is handed over the end simultaneously, and convenient to detach uses the part cost lower simultaneously, facilitate promotion and use.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
FIG. 1 is a schematic view of an overall structure of a novel electrical installation and building training assessment device provided by the invention;
FIG. 2 is a side view of a positioning plate, a display screen, a positioning hole, a first connecting block and a second connecting block of the novel electrical installation and building training assessment device provided by the invention;
fig. 3 is a side sectional view of a positioning plate, a display screen, a positioning hole, a first connecting block, a second connecting block, a connecting plate, a reset bump, a reset chute, a positioning block and a reset spring of the novel electrical installation and building training examination device provided by the invention;
FIG. 4 is an enlarged view of the portion A in FIG. 3 of the novel electrical installation and building practical training assessment device provided by the present invention;
FIG. 5 is a top cross-sectional view of a fixing bottom column, an L-shaped plate, a receiving groove, a first adjusting shaft, a rotating main shaft and a connecting support rod of the novel electrical installation and building training assessment device provided by the invention;
FIG. 6 is a top view of the novel electrical installation and building training assessment device after the fixed bottom column and the connecting support rod are received;
FIG. 7 is a front cross-sectional view of a fixed bottom column, a rotating main shaft, a connecting support rod, a positioning bolt and an adjusting pulley of the novel electrical installation and building training assessment device provided by the invention;
fig. 8 is a front sectional view of a detection cabinet, a fixed rod, a supporting rod and a positioning plate of the novel electrical installation and building training assessment device provided by the invention;
FIG. 9 is an enlarged view of a section B in FIG. 8 of the novel electrical installation and building training assessment device provided by the present invention;
fig. 10 is a side view of a fixing pillar, a support rod, a connecting sliding groove and a circular groove of the novel electrical installation and building practical training assessment device provided by the invention.
In the figure: 1. an operation cabinet; 2. positioning a plate; 3. a display screen; 4. fixing a strut; 5. fixing the bottom pillar; 6. operating the computer; 7. a detection cabinet; 8. positioning holes; 9. a first connection block; 10. a second connecting block; 11. a connecting plate; 12. resetting the bump; 13. a reset chute; 14. positioning blocks; 15. a return spring; 16. an L-shaped plate; 17. a receiving groove; 18. a first adjustment shaft; 19. rotating the main shaft; 20. connecting a support rod; 21. positioning the bolt; 22. adjusting the pulley; 23. fixing the rod; 24. a support bar; 25. positioning a plate; 26. connecting the sliding chute; 27. a circular groove.
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.
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.
Referring to fig. 1-10, a novel electric installation and building training examination device comprises an operation cabinet 1, a plurality of fixed pillars 4 positioned at the bottom of the operation cabinet 1 and fixed bottom pillars 5 positioned at the bottoms of the plurality of fixed pillars 4, a positioning plate 2 is fixedly connected between the two fixed pillars 4, a plurality of positioning holes 8 are uniformly formed on the surface of the positioning plate 2, a display screen 3 is detachably connected to the surface of the positioning plate 2, a plurality of first connecting blocks 9 are symmetrically distributed on one side of the display screen 3, a second connecting block 10 is movably connected to one side of each first connecting block 9, the shape and size of each first connecting block 9 are consistent with that of each positioning hole 8, the first connecting blocks 9 and the second connecting blocks 10 can penetrate into the positioning holes 8, the first connecting blocks 9 can be tightly attached to the positioning holes 8, a connecting plate 11 positioned in the first connecting blocks 9 is fixedly connected to one side of the second connecting blocks 10 close to the first connecting blocks 9, the connecting plate 11 and the second connecting block 10 are welded or integrally formed, the bottom of the connecting plate 11 is movably connected with a return spring 15, the return spring 15 is made of elastic material and can deform after being subjected to an acting force, the return spring can restore to the original state after losing the acting force, a return bump 12 positioned inside the connecting plate 11 is fixedly connected with the top of the return spring 15, a return chute 13 matched with the return bump 12 is formed in the connecting plate 11, the return bump 12 and the return chute 13 enable the second connecting block 10 to slide, the return spring 15 can be positioned at the original position and does not slide by the sliding of the second connecting block 10, a positioning block 14 positioned right below the connecting plate 11 is fixedly connected with one side of the second connecting block 10 close to the first connecting block 9, the positioning block 14 is used for positioning, the positioning block 14 can be magnetically connected with the positioning plate 2, the stability of the display screen 3 is further increased, firstly, the second connecting, The first connecting block 9 is inserted into the positioning hole 8, then the second connecting block 10 penetrating through the positioning hole 8 is pulled to one side, so that the positioning block 14 slides to the outside of the first connecting block 9, the return spring 15 is kept at the original position through the return bump 12 and the return chute 13, then the second connecting block 10 is pressed, so that the return spring 15 is in a contracted state under the action of an acting force, then the second connecting block 10 is pushed, the positioning block 14 on one side of the second connecting block 10 slides into the positioning hole 8 right below the first connecting block 9, the positioning block 14 is clamped with the positioning hole 8, the positioning block 14 is magnetically connected with the positioning plate 2, and the display screen 3 is fixed;
two connecting support rods 20 are arranged between the two fixed bottom posts 5, the connecting position of the two connecting support rods 20 is rotatably connected with a rotating main shaft 19, the connecting support rods 20 can rotate through the rotating main shaft 19, one end of each connecting support rod 20 far away from the rotating main shaft 19 is rotatably connected with a first adjusting shaft 18, the outer ring of each first adjusting shaft 18 is connected with the corresponding fixed bottom post 5, the inner ring of each first adjusting shaft 18 is connected with the corresponding rotating main shaft 19, the connecting support rods 20 can rotate with the corresponding fixed bottom posts 5 through the corresponding first adjusting shafts 18, the two ends of each fixed bottom post 5 are respectively provided with an L-shaped plate 16 matched with the corresponding connecting support rod 20, the L-shaped plates 16 are used for positioning the connecting support rods 20 to enable the connecting support rods 20 to slide and contract inwards, the side walls of the fixed bottom posts 5 are provided with accommodating grooves 17 matched with the corresponding connecting support rods 20, the accommodating grooves 17 are used for accommodating the corresponding connecting support, the positioning bolt 21 can position the rotating main shaft 19, so that the rotating main shaft 19 cannot rotate, the bottom end of the rotating main shaft 19 is provided with the adjusting pulley 22, the adjusting pulley 22 is convenient for adjusting the rotating main shaft 19, when the training device is used, only the fixed bottom pillar 5 needs to be pushed inwards, the connecting support rod 20 rotates through the rotating main shaft 19, the rotating main shaft 19 slides to the state shown in fig. 6, the connecting support rod 20 is accommodated to the position of the accommodating groove 17, the adjusting pulley 22 enables the rotating main shaft 19 to be adjusted more conveniently, then the positioning bolt 21 rotates, the positioning bolt 21 is fixed with the rotating main shaft 19 through thread rotation, the rotating main shaft 19 is positioned, the connecting support rod 20 cannot rotate, the training device is contracted, and space occupation is reduced;
the bottom of operation cabinet 1 is located the top of fixed foundation 5 and is equipped with dead lever 23, one side swing joint of dead lever 23 has detection cabinet 7, the middle part of dead lever 23 is equipped with a plurality of bracing pieces 24, the lateral wall that detects cabinet 7 rotates and is connected with a plurality of positioning disk 25, circular slot 27 that uses with the cooperation of positioning disk 25 is seted up to the lateral wall of bracing piece 24, connecting chute 26 has been seted up on the surface of bracing piece 24, and connecting chute 26, circular slot 27 communicates with each other, the position department of circular slot 27 is aimed at to the positioning disk 25 that will detect cabinet 7 one side, promote after that and detect cabinet 7, make positioning disk 25 be located circular slot 27, then will detect cabinet 7 and slide to one side, make positioning disk 25 slide in connecting chute 26, be convenient for detect the installation and the dismantlement of cabinet 7.
The locating piece 14 is made of magnet, and the locating plate 2 is made of iron, so that the stability is further improved, and the locating plate 2 and the locating piece 14 can be magnetically connected.
The length of the reset chute 13 is less than that of the connecting plate 11, so that the connecting plate 11 can slide conveniently, and the position of the reset spring 15 is unchanged when the connecting plate 11 slides.
The length of the second connecting block 10 is smaller than that of the first connecting block 9, and the width of the second connecting block 10 is smaller than that of the first connecting block 9, so that the second connecting block 10 can slide in and out of the positioning hole 8.
The length of the storage groove 17 is greater than the length of the connecting support rod 20, the width of the storage groove 17 is greater than the width of the connecting support rod 20, and the storage groove 17 is used for storing the connecting support rod 20.
One end of one connecting strut 20 is connected with the outer ring of the rotating main shaft 19, and one end of the other connecting strut 20 is connected with the inner ring of the rotating main shaft 19, so that the rotating main shaft 19 can be normally used conveniently, and the two connecting struts 20 can be rotated and adjusted through the rotating main shaft 19.
The centers of the positioning bolt 21 and the rotating main shaft 19 are coaxial, so that the stability is further improved.
The diameter of the circular groove 27 is larger than that of the positioning plate 25, so that the positioning plate 25 can be inserted into the circular groove.
And an operating computer 6 is placed at the top of the fixed bottom column 5, so that the practicability of the practical training device is improved.
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 (9)

1. The utility model provides a novel real standard examination device of electric installation and building, is including operation cabinet (1), many fixed stay (4) that are located operation cabinet (1) bottom and fixed sill pillar (5) that are located a plurality of fixed stay (4) bottom, its characterized in that, two fixedly connected with locating plate (2) between fixed stay (4), a plurality of locating holes (8) have evenly been seted up on the surface of locating plate (2), the surface of locating plate (2) can be dismantled and be connected with display screen (3), one side symmetric distribution of display screen (3) has a plurality of first connecting blocks (9), one side swing joint of first connecting block (9) has second connecting block (10), the shape size of first connecting block (9) is unanimous with the shape size of locating hole (8), and the two clearance fit uses, one side fixedly connected with (being located first connecting block (9) of second connecting block (10) near first connecting block (9), (a) connecting plate (9) 11) The bottom of the connecting plate (11) is movably connected with a return spring (15), the top of the return spring (15) is fixedly connected with a return lug (12) positioned inside the connecting plate (11), a return chute (13) matched with the return lug (12) is formed in the connecting plate (11), and one side, close to the first connecting block (9), of the second connecting block (10) is fixedly connected with a positioning block (14) positioned right below the connecting plate (11);
two connecting support rods (20) are arranged between the two fixed bottom posts (5), the connecting position of the two connecting support rods (20) is rotationally connected with a rotating main shaft (19), one end of the connecting support rod (20) far away from the rotating main shaft (19) is rotatably connected with a first adjusting shaft (18), the outer ring of the first adjusting shaft (18) is connected with the fixed bottom column (5), the inner ring of the first adjusting shaft (18) is connected with the rotating main shaft (19), the two ends of the fixed bottom column (5) are respectively provided with an L-shaped plate (16) which is matched with the connecting support rod (20), the side wall of the fixed bottom pillar (5) is provided with a containing groove (17) which is matched with the connecting support rod (20) for use, the top end of the rotating main shaft (19) is rotatably connected with a positioning bolt (21), and the bottom end of the rotating main shaft (19) is provided with an adjusting pulley (22);
the top that the bottom of operation cabinet (1) is located fixed foundation (5) is equipped with dead lever (23), one side swing joint of dead lever (23) has detection cabinet (7), the middle part of dead lever (23) is equipped with a plurality of bracing pieces (24), the lateral wall that detects cabinet (7) rotates and is connected with a plurality of positioning disk (25), circular recess (27) that use with positioning disk (25) cooperation are seted up to the lateral wall of bracing piece (24), connecting chute (26) have been seted up on the surface of bracing piece (24), just connecting chute (26), circular recess (27) communicate with each other.
2. The novel practical training examination device for electrical installation and buildings as claimed in claim 1, wherein the positioning block (14) is made of magnet, and the positioning plate (2) is made of iron material.
3. The novel electrical installation and building practical training assessment device as claimed in claim 1, wherein the length of the reset chute (13) is less than the length of the connecting plate (11).
4. The novel electrical installation and building practical training assessment device as claimed in claim 1, wherein the length of the second connection block (10) is less than the length of the first connection block (9), and the width of the second connection block (10) is less than the width of the first connection block (9).
5. The novel practical training assessment device for electrical installation and building as claimed in claim 1, wherein the length of the accommodating groove (17) is greater than the length of the connecting support rod (20), and the width of the accommodating groove (17) is greater than the width of the connecting support rod (20).
6. The novel practical training assessment device for electrical installation and building as claimed in claim 1, wherein one end of one of said connecting support rods (20) is connected with the outer ring of the rotating main shaft (19), and one end of the other of said connecting support rods (20) is connected with the inner ring of the rotating main shaft (19).
7. The novel electrical installation and building practical training assessment device as claimed in claim 1, wherein the centers of the circle of the positioning bolt (21) and the circle of the rotating main shaft (19) are coaxial.
8. The novel practical training assessment device for electrical installation and building as claimed in claim 1, wherein the diameter of said circular groove (27) is larger than the diameter of said positioning plate (25).
9. The novel electric installation and building practical training assessment device as claimed in claim 1, wherein an operating computer (6) is placed on the top of the fixed bottom column (5).
CN202010052070.7A 2020-01-17 2020-01-17 Electrical installation and building training examination device Expired - Fee Related CN111179682B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010052070.7A CN111179682B (en) 2020-01-17 2020-01-17 Electrical installation and building training examination device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010052070.7A CN111179682B (en) 2020-01-17 2020-01-17 Electrical installation and building training examination device

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CN111179682A true CN111179682A (en) 2020-05-19
CN111179682B CN111179682B (en) 2022-06-10

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113278467A (en) * 2021-05-05 2021-08-20 江西森海植物油有限公司 Fine filter is used in vegetable oil production

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GB2087620A (en) * 1980-11-12 1982-05-26 Wentworth Roland Anthony Lubie Arithmetical Teaching Aid
JPH09127859A (en) * 1995-10-31 1997-05-16 Ricoh Co Ltd Braille display device
CN206789084U (en) * 2017-04-13 2017-12-22 重庆工业职业技术学院 A kind of law classroom case teaching exhibiting device
CN108230762A (en) * 2017-12-29 2018-06-29 广东童书科技有限公司 A kind of faculty training equipment that cloud platform is promoted based on children's reading
CN207780986U (en) * 2017-10-31 2018-08-28 浙江师范大学 A kind of novel interactive education and instruction displaying device
CN109118872A (en) * 2018-10-23 2019-01-01 广东唯康教育科技股份有限公司 A kind of intelligent building security protection wiring experience system
CN209029009U (en) * 2018-12-19 2019-06-25 深圳市欧视科技有限公司 A kind of detachable mosaic screen
CN209294741U (en) * 2018-12-14 2019-08-23 深圳市伟建光电显示有限公司 A kind of simple LED screen

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2087620A (en) * 1980-11-12 1982-05-26 Wentworth Roland Anthony Lubie Arithmetical Teaching Aid
JPH09127859A (en) * 1995-10-31 1997-05-16 Ricoh Co Ltd Braille display device
CN206789084U (en) * 2017-04-13 2017-12-22 重庆工业职业技术学院 A kind of law classroom case teaching exhibiting device
CN207780986U (en) * 2017-10-31 2018-08-28 浙江师范大学 A kind of novel interactive education and instruction displaying device
CN108230762A (en) * 2017-12-29 2018-06-29 广东童书科技有限公司 A kind of faculty training equipment that cloud platform is promoted based on children's reading
CN109118872A (en) * 2018-10-23 2019-01-01 广东唯康教育科技股份有限公司 A kind of intelligent building security protection wiring experience system
CN209294741U (en) * 2018-12-14 2019-08-23 深圳市伟建光电显示有限公司 A kind of simple LED screen
CN209029009U (en) * 2018-12-19 2019-06-25 深圳市欧视科技有限公司 A kind of detachable mosaic screen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113278467A (en) * 2021-05-05 2021-08-20 江西森海植物油有限公司 Fine filter is used in vegetable oil production

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