CN107978182B - Multimedia teaching device that chinese teaching used - Google Patents
Multimedia teaching device that chinese teaching used Download PDFInfo
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- CN107978182B CN107978182B CN201810005033.3A CN201810005033A CN107978182B CN 107978182 B CN107978182 B CN 107978182B CN 201810005033 A CN201810005033 A CN 201810005033A CN 107978182 B CN107978182 B CN 107978182B
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- supporting
- lifting
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- installing
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- 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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
- F16M11/26—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
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- Engineering & Computer Science (AREA)
- General 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)
- Mechanical Engineering (AREA)
- Warehouses Or Storage Devices (AREA)
- Projection Apparatus (AREA)
Abstract
The invention discloses a multimedia teaching device for Chinese teaching, which comprises a supporting and installing box and is characterized in that the left end and the right end of the upper side of the supporting and installing box are symmetrically, vertically and upwards provided with supporting and installing cylinders, the upper end of the supporting and installing box between the supporting and installing cylinders on the left side and the right side is provided with an accommodating lifting box, the upper end of the accommodating lifting box is horizontally provided with a sliding object placing plate, the left end of the sliding object placing plate horizontally penetrates through the supporting and installing cylinders to the left side and is provided with a horizontal guide structure, and the horizontal guide structure comprises synchronous sliding plates which are symmetrically and horizontally embedded on the upper side and the lower side of the sliding object placing plate, wherein the supporting and installing cylinder on the left side is matched with the sliding object placing plate horizontally extending into the supporting and installing cylinder on the upper side and.
Description
Technical Field
The invention relates to teaching auxiliary equipment, in particular to a multimedia teaching device for Chinese teaching.
Background
At present, when the teacher is carrying out chinese teaching on the blackboard, this kind of traditional teaching mode needs the teacher to write all teaching contents on the blackboard, and the blackboard writing of writing moreover can not used repeatedly, leads to the teacher's work load very big, and when giving lessons in addition, books are hardly found the place and are placed, and simultaneously, chalk powder on the blackboard can cause very big injury to the teacher's health.
In order to solve the problems, the invention provides the multimedia teaching device, solves the problems that the currently used multimedia teaching device has a loose internal structure due to the adoption of a simple drawer type structure, generates noise in the use process, seriously influences the quality of the teaching effect and the like, and solves the problems that the currently used multimedia teaching device has short service life and the like due to the fact that a suspended projection device is externally arranged for a long time, and elements fall ash and are greatly influenced by air humidity.
Disclosure of Invention
The invention aims to provide a multimedia teaching device for Chinese teaching, which is used for solving the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a multimedia teaching device used for Chinese teaching comprises a supporting and installing box, and is characterized in that the left end and the right end of the upper side of the supporting and installing box are symmetrically, vertically and upwards provided with supporting and installing cylinders, the upper end of the supporting and installing box between the supporting and installing cylinders at the left side and the right side is provided with a containing lifting box, the upper end of the containing lifting box is horizontally provided with a sliding object placing plate, the left end of the sliding object placing plate horizontally penetrates through the supporting and installing cylinders to the left side and is provided with a horizontal guide structure, the horizontal guide structure comprises a sliding motor which is embedded at the left side and is matched with the sliding object placing plate horizontally extending in, synchronous sliding plates are symmetrically and horizontally embedded at the upper side and the lower side of the sliding object placing plate, the middle positions of the synchronous sliding plates are coaxially and rotatably provided with a main sliding wheel through a sliding motor which is embedded at the left, a guide baffle plate is vertically and upwards arranged at the middle position of the upper end of the supporting and installing box, an extension lifting plate is arranged on the supporting and installing cylinder on the right side of the guide baffle plate in a matching way, a supporting lifting frame is vertically arranged at the lower end of the extension lifting plate, a lifting internal thread cylinder is vertically embedded and arranged at the middle position of the lower end of the supporting lifting frame, a fixed-rotation lifting thread column is vertically arranged in a matching way in the lifting internal thread cylinder, the fixed-rotation lifting thread column extends into the supporting and installing box through a bearing sleeve vertically penetrating the upper end of the supporting and installing box, a driving motor is vertically arranged at the lower end of the inside of the supporting and installing box in a matching way, a driving bevel gear is horizontally and coaxially arranged at the upper end of the driving motor through a motor rotating shaft, the upper end axis position of the driving bevel gear is connected with the lower end of the fixed-rotation, the left side and the right side of the guide lifting plate are vertically and symmetrically provided with a lifting guide wheel through a guide wheel frame which is matched with the left side and the right side inside the support mounting cylinder in a half-embedded manner, the guide wheel frame at the upper end is vertically and upwards provided with a projector mounting plate through a mounting column horizontally, the middle position of the guide lifting plate is vertically and internally provided with a guide thread cylinder which is matched with the guide thread cylinder vertically, the lower end of the guide thread cylinder is vertically and coaxially provided with a limit transmission shaft, the lower end of the limit transmission shaft is horizontally and coaxially provided with a lifting bevel gear, the left end of the lifting bevel gear is vertically meshed with a transmission bevel gear, the left end of the transmission bevel gear is matched with a driving bevel gear through a horizontally arranged transmission shaft and is also coaxially provided with a transmission bevel gear, the lower left corner of the support mounting box is horizontally penetrated and provided with a guide cylinder, the, the left end of the diversion motor is provided with a diversion impeller fan through a motor rotating shaft.
As a further scheme of the invention: the supporting and installing cylinder on the right side is matched with the sliding object placing plate on the left side and is provided with a positioning groove.
As a further scheme of the invention: the upper side and the lower side of the sliding object placing plate are horizontally provided with sliding guide grooves in cooperation with the main sliding wheel and the supporting guide wheel.
As a further scheme of the invention: the extension lifter plate is obliquely arranged at the upper end of the support lifter, the middle position of the upper end of the extension lifter plate is embedded with a storage groove, and an extension lifter plate arranged on the lower side of the storage groove is vertically upwards provided with a falling-prevention limiting plate.
As a further scheme of the invention: the sliding object placing plate at the upper end of the guide partition plate is internally provided with an accommodating gate in an embedded mode through a rotating shaft, and an accommodating cavity is formed in the upper end of the supporting installation box at the left side of the guide partition plate.
As a further scheme of the invention: and the inner side of the support mounting cylinder on the right side is vertically provided with a lifting guide wheel groove in a manner of being matched with the lifting guide wheel.
As a still further scheme of the invention: and the upper ends of the fixed-rotation lifting threaded column and the guide threaded column are horizontally and coaxially provided with limiting discs.
Compared with the prior art, the invention has the beneficial effects that: the problems that the currently used multimedia teaching device is loose in internal structure due to the adoption of a simple drawer type structure, noise is generated in the using process, the quality of a teaching effect is seriously influenced and the like are solved, and the problems that an element falls ash due to the adoption of suspended projection equipment and is externally arranged for a long time, the influence of air humidity is large, the service life is short and the like are solved.
Drawings
Fig. 1 is a schematic structural diagram of a multimedia teaching apparatus for chinese teaching.
Fig. 2 is a schematic structural view of a projector accommodating and lifting structure in a multimedia teaching apparatus for chinese teaching.
Fig. 3 is a schematic structural diagram of a horizontal guiding structure in a multimedia teaching apparatus for chinese teaching.
Fig. 4 is a schematic structural view of an extended lifting plate in a multimedia teaching apparatus for chinese teaching.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 4, in the embodiment of the present invention, a multimedia teaching device for chinese teaching includes a supporting and mounting box 5, and is characterized in that supporting and mounting cylinders 20 are symmetrically vertically and upwardly disposed at left and right ends of an upper side of the supporting and mounting box 5, a storage lifting box is disposed at an upper end of the supporting and mounting box 5 between the supporting and mounting cylinders 20 at left and right sides, a sliding object placing plate 17 is horizontally disposed at an upper end of the storage lifting box, a positioning groove is disposed at a left side of the supporting and mounting cylinder 20 at right side in cooperation with the sliding object placing plate 17, a horizontal guiding structure is disposed at a left end of the sliding object placing plate 17 horizontally and horizontally penetrating through the supporting and mounting cylinder 20, the horizontal guiding structure includes synchronous sliding plates 26 symmetrically embedded at upper and lower sides of the sliding object placing plate 17 horizontally inserted from the supporting and mounting cylinder 20 at left side, and main sliding wheels 27 are coaxially and rotatably disposed at middle positions of the synchronous sliding plates 26 through The synchronous sliding plates 26 on the left and right sides of the main sliding wheel 27 are matched with the sliding object placing plate 17 and are half-embedded with supporting guide wheels 30, the upper and lower sides of the sliding object placing plate 17 are matched with the main sliding wheel 27 and the supporting guide wheels 30 and are horizontally provided with sliding guide grooves 29, the middle position of the upper end of the supporting installation box 5 is vertically upwards provided with a guiding clapboard, the sliding object placing plate 17 at the upper end of the guiding clapboard is internally embedded with a containing gate 14 through a rotating shaft, the upper end of the supporting installation box 5 at the left side of the guiding clapboard is provided with a containing cavity 18, the guiding clapboard is matched with the supporting installation barrel 20 at the right side of the guiding clapboard to be provided with an expanding lifting plate 15, the expanding lifting plate 15 is obliquely arranged at the upper end of the supporting lifting frame 16, the middle position of the upper end of the expanding lifting plate 15 is embedded with an object placing groove, the expanding lifting, a lifting internal thread cylinder 19 is vertically embedded in the middle position of the lower end of the supporting lifting frame 16, a fixed-rotation lifting thread column 13 is vertically arranged by matching with the lifting internal thread cylinder 19, the fixed-rotation lifting thread column 13 extends into the supporting mounting box 5 through a bearing sleeve vertically arranged on the upper end of the supporting mounting box 5 in a penetrating way, a driving motor 6 is vertically arranged on the lower end of the inside of the supporting mounting box 5 in a matching way and the fixed-rotation lifting thread column 13, a driving bevel gear 7 is horizontally and coaxially arranged on the upper end of the driving motor 6 through a motor rotating shaft, the upper end axis position of the driving bevel gear 7 is connected with the lower end of the fixed-rotation lifting thread column 13, a projector accommodating lifting structure is embedded in the supporting mounting cylinder 20 on the right side, the projector accommodating lifting structure comprises a guide lifting plate 22 horizontally and movably arranged in the supporting mounting cylinder 20, the left side and the right side of the guide lifting plate 22 are vertically symmetrical, the inner side of the right supporting and mounting barrel 20 is vertically provided with a lifting guide wheel groove in a matching way with a lifting guide wheel 21, a projector mounting plate 25 is vertically and upwards arranged on a guide wheel frame at the upper end through a mounting column horizontally, a guide threaded barrel 23 is vertically embedded and arranged at the middle position of a guide lifting plate 22, a guide threaded barrel 11 is vertically arranged in a matching way with the guide threaded barrel 23, the upper ends of the fixed-rotation lifting threaded barrel 13 and the guide threaded barrel 11 are horizontally and coaxially provided with a limiting disc 24, the lower end of the guide threaded barrel 11 is vertically and coaxially provided with a limiting transmission shaft 10, the lower end of the limiting transmission shaft 10 is horizontally and coaxially provided with a lifting bevel gear 9, the left end of the lifting bevel gear 9 is vertically meshed with a transmission bevel gear 8, the left end of the transmission bevel gear 8 is also coaxially provided with a transmission bevel gear 8 through the horizontally arranged transmission, the left end of draft tube 1 is vertically inlayed and is provided with filter screen 2, and the right half section intermediate position of draft tube 1 is inlayed through the motor installation section of thick bamboo that the level set up and is provided with guide motor 4, and guide motor 4's left end is provided with guide impeller fan 3 through the motor shaft.
The working principle of the invention is as follows: when the portable multimedia teaching device is needed to be used, the sliding object placing plate 17 is moved leftwards through the horizontal guide structure, the right end of the sliding object placing plate 17 is just stopped at the upper end of the guide partition plate, a teaching tool in the accommodating cavity 18 can be taken out through the accommodating gate 14, the drive bevel gear 7 and the fixed lifting threaded column 13 are driven to rotate by starting the drive motor 6, the fixed lifting threaded column 13 acts on the support lifting frame 16, the extension lifting plate 15 is lifted, the drive bevel gear 7 acts on the lifting bevel gear 9 through the drive bevel gear 8 and acts on the guide threaded column 11, the guide threaded column 11 drives the projector accommodating lifting structure to drive the projector mounting plate 25 to lift, a projector arranged on the projector mounting plate extends out of the support mounting cylinder 20, the guide motor 4 drives the guide impeller fan 3 to dissipate heat, and the currently used multimedia teaching device is overcome, the invention solves the problems that the prior multimedia teaching device adopts a suspended projection device, is externally arranged for a long time, causes ash falling of elements, is greatly influenced by air humidity, has short service life and the like, and has the advantages of novel structural design, compact structural layout, full space utilization, stable transmission process, large use space, convenient storage and the like.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. A multimedia teaching device used for Chinese teaching comprises a supporting and installing box (5), wherein the left end and the right end of the upper side of the supporting and installing box (5) are symmetrically, vertically and upwards provided with supporting and installing cylinders (20), the upper end of the supporting and installing box (5) between the supporting and installing cylinders (20) at the left side and the right side is provided with a containing lifting box, the upper end of the containing lifting box is horizontally provided with a sliding object placing plate (17), the left end of the sliding object placing plate (17) horizontally penetrates through the supporting and installing cylinders (20) leftwards and is provided with a horizontal guide structure, the horizontal guide structure comprises a synchronous sliding plate (26) which is symmetrically and horizontally embedded at the upper side and the lower side of the sliding object placing plate (17) and is horizontally inserted by matching with the supporting and installing cylinder (20) at the left side, the middle position of the synchronous sliding plate (26) is coaxially and rotatably provided with a main sliding wheel, synchronous sliding plates (26) on the left side and the right side of a main sliding wheel (27) are matched with a sliding object placing plate (17) to be half-embedded with a supporting guide wheel (30), a guide clapboard is vertically upwards arranged at the middle position of the upper end of a supporting installation box (5), an expansion lifting plate (15) is arranged on the supporting installation cylinder (20) on the right side matched with the guide clapboard, a supporting lifting frame (16) is vertically arranged at the lower end of the expansion lifting plate (15), a lifting internal thread cylinder (19) is vertically embedded at the middle position of the lower end of the supporting lifting frame (16), a fixed-rotation lifting threaded column (13) is vertically arranged in matched with the lifting internal thread cylinder (19), the fixed-rotation lifting threaded column (13) extends into the supporting installation box (5) through a bearing sleeve vertically arranged at the upper end of the supporting installation box (5) in a penetrating manner, a driving motor (6) is vertically arranged at the lower end, the upper end of a driving motor (6) is horizontally and coaxially provided with a driving bevel gear (7) through a motor rotating shaft, the upper end axis position of the driving bevel gear (7) is connected with the lower end of a fixed-rotation lifting threaded column (13), a projector containing lifting structure is embedded in a supporting and mounting cylinder (20) on the right side, the projector containing lifting structure is characterized by comprising a guiding lifting plate (22) which is horizontally and movably arranged in the supporting and mounting cylinder (20), the left side and the right side of the guiding lifting plate (22) are vertically and symmetrically matched with the left side and the right side of the inside of the supporting and mounting cylinder (20) through a guiding wheel frame, lifting guide wheels (21) are half embedded in the left side and the right side of the inside of the supporting and mounting cylinder (20), a projector mounting plate (25) is vertically and upwards arranged through the mounting column horizontally on the guiding wheel frame on the upper end, a guiding threaded cylinder (23, the vertical coaxial spacing transmission shaft (10) that is provided with of lower extreme of direction screw thread post (11), the coaxial lifting bevel gear (9) that is provided with of lower extreme level of spacing transmission shaft (10), the vertical meshing of the left end of lifting bevel gear (9) is provided with transmission bevel gear (8), transmission shaft cooperation initiative bevel gear (7) that the left end of transmission bevel gear (8) set up through the level also coaxially are provided with transmission bevel gear (8), the lower left corner level that supports installing bin (5) runs through and is provided with draft tube (1), the vertical inlaying of left end of draft tube (1) is provided with filter screen (2), the motor installing tube that right half section intermediate position of draft tube (1) set up through the level is inlayed and is provided with guide motor (4), the left end of guide motor (4) is provided with guide vane fan (3.
2. The multimedia teaching device for Chinese teaching of claim 1, wherein the supporting and mounting cylinder (20) on the right side has positioning slots on the left side thereof for engaging with the sliding object-placing plate (17).
3. The multimedia teaching device for Chinese teaching according to claim 1, wherein the upper and lower sides of the sliding object placing plate (17) are horizontally provided with sliding guide grooves (29) in cooperation with the main sliding wheel (27) and the supporting guide wheel (30).
4. The multimedia teaching device for Chinese teaching of claim 1, wherein the extension lifting plate (15) is obliquely arranged at the upper end of the support lifting frame (16), the middle position of the upper end of the extension lifting plate (15) is embedded with a storage groove, and the extension lifting plate (15) at the lower side of the storage groove is vertically and upwardly provided with a falling-prevention limiting plate.
5. The multimedia teaching device for Chinese teaching of claim 1, wherein the sliding object placing plate (17) at the upper end of the guiding partition plate is embedded with a storage gate (14) through a rotating shaft, and the upper end of the supporting installation box (5) at the left side of the guiding partition plate is provided with a storage cavity (18).
6. The multimedia teaching device for Chinese teaching of claim 1, wherein the inner side of the right supporting and mounting cylinder (20) is vertically provided with a lifting guide wheel groove matched with the lifting guide wheel (21).
7. The multimedia teaching device for Chinese teaching according to claim 1, wherein the upper ends of the fixed rotation lifting screw column (13) and the guide screw column (11) are both horizontally and coaxially provided with a limiting disc (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810005033.3A CN107978182B (en) | 2018-01-03 | 2018-01-03 | Multimedia teaching device that chinese teaching used |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810005033.3A CN107978182B (en) | 2018-01-03 | 2018-01-03 | Multimedia teaching device that chinese teaching used |
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| Publication Number | Publication Date |
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| CN107978182A CN107978182A (en) | 2018-05-01 |
| CN107978182B true CN107978182B (en) | 2020-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810005033.3A Active CN107978182B (en) | 2018-01-03 | 2018-01-03 | Multimedia teaching device that chinese teaching used |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108632592A (en) * | 2018-05-08 | 2018-10-09 | 广西劢梦科技有限公司 | A kind of meeting projection arrangement |
| CN112951009A (en) * | 2021-02-23 | 2021-06-11 | 焦作大学 | Slide play subassembly is used in education |
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| CN203179311U (en) * | 2013-04-27 | 2013-09-04 | 隋英国 | Multimedia teaching device |
| CN203493070U (en) * | 2013-08-13 | 2014-03-26 | 肖雨辰 | Multifunctional teaching platform |
| CN203588495U (en) * | 2013-11-21 | 2014-05-07 | 黑龙江商业职业学院 | Multimedia teaching device for economics teaching usage |
| CN206227953U (en) * | 2016-08-26 | 2017-06-09 | 孙婷 | Language teaching display device |
| CN206249595U (en) * | 2016-08-17 | 2017-06-13 | 许昌学院 | A kind of operating desk of novel information technique teaching |
| CN206516105U (en) * | 2017-02-14 | 2017-09-22 | 长沙医学院 | English teaching verbal learning machine |
| CN206594851U (en) * | 2017-03-09 | 2017-10-27 | 河南广播电视大学 | The multimedia teaching apparatus that a kind of teaching of Chinese is used |
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2018
- 2018-01-03 CN CN201810005033.3A patent/CN107978182B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2680778Y (en) * | 2004-03-10 | 2005-02-23 | 李宝立 | Multimedia platform |
| CN203179311U (en) * | 2013-04-27 | 2013-09-04 | 隋英国 | Multimedia teaching device |
| CN203493070U (en) * | 2013-08-13 | 2014-03-26 | 肖雨辰 | Multifunctional teaching platform |
| CN203588495U (en) * | 2013-11-21 | 2014-05-07 | 黑龙江商业职业学院 | Multimedia teaching device for economics teaching usage |
| CN206249595U (en) * | 2016-08-17 | 2017-06-13 | 许昌学院 | A kind of operating desk of novel information technique teaching |
| CN206227953U (en) * | 2016-08-26 | 2017-06-09 | 孙婷 | Language teaching display device |
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| CN206594851U (en) * | 2017-03-09 | 2017-10-27 | 河南广播电视大学 | The multimedia teaching apparatus that a kind of teaching of Chinese is used |
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Effective date of registration: 20200522 Address after: 266100 A 169, Songling Road, software park, Laoshan District, Qingdao, Shandong, 211 Applicant after: Qingdao Huashi Intelligent Technology Co.,Ltd. Address before: Ganquan road Shushan District of Hefei City, Anhui Province, 230000 West hillock road to the South Wild Garden commercial office building room B-1512 Applicant before: ANHUI YINGLONG INDUSTRIAL DESIGN Co.,Ltd. Effective date of registration: 20200522 Address after: Ganquan road Shushan District of Hefei City, Anhui Province, 230000 West hillock road to the South Wild Garden commercial office building room B-1512 Applicant after: ANHUI YINGLONG INDUSTRIAL DESIGN Co.,Ltd. Address before: 454150 green lotus road, Shanyang District, Jiaozuo, Henan Province, No. 801 Applicant before: HENAN COLLEGE OF INDUSTRY & INFORMATION TECHNOLOGY |
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