CN112227864A - Contact type automatic omnibearing anti-pinch safety device for doors and windows - Google Patents
Contact type automatic omnibearing anti-pinch safety device for doors and windows Download PDFInfo
- Publication number
- CN112227864A CN112227864A CN202011145283.0A CN202011145283A CN112227864A CN 112227864 A CN112227864 A CN 112227864A CN 202011145283 A CN202011145283 A CN 202011145283A CN 112227864 A CN112227864 A CN 112227864A
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- base body
- door body
- touch switch
- groove
- safety device
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- 238000009434 installation Methods 0.000 claims abstract description 22
- 238000003780 insertion Methods 0.000 claims abstract description 7
- 230000037431 insertion Effects 0.000 claims abstract description 7
- 230000000670 limiting effect Effects 0.000 claims description 31
- 238000005034 decoration Methods 0.000 claims description 11
- 238000010030 laminating Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/40—Safety devices, e.g. detection of obstructions or end positions
- E05F15/42—Detection using safety edges
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
- E05Y2900/13—Type of wing
- E05Y2900/132—Doors
Landscapes
- Power-Operated Mechanisms For Wings (AREA)
Abstract
The invention discloses a contact type automatic omnibearing anti-pinch safety device for doors and windows, which comprises a base body, a first light-touch switch, a second light-touch switch and a door body, wherein the first light-touch switch is installed on one side of the base body, an installation block is arranged on one side of the base body, a decorative strip is arranged on one side of the base body, an insertion block is fixed on the surface of the decorative strip, a bayonet is arranged in the base body, a limit block is installed in the accommodating groove, the door body is arranged on one side of the base body, and a telescopic rod is installed on the surface of the base body. This all-round safety device that prevents pressing from both sides of automatic door and window of contact, the inside of base member is provided with bayonet socket, storage tank and stopper, utilizes the bayonet socket can be with the swift surface of installing at the door body of base member, and the rethread rotates the stopper and can drive the stopper that the symmetry set up centre gripping firmly in the both sides of the door body, has not only improved the stability of base member at door body surface mounting, can also reduce the loaded down with trivial details nature of operation when the base member is installed.
Description
Technical Field
The invention relates to the technical field of doors and windows, in particular to a contact type automatic omnibearing anti-pinch safety device for doors and windows.
Background
Doors and windows are important components in building modeling, common doors and windows mainly comprise a push-pull type door and window, a side-hung type door and window, a folding type door and window, a fixed type door and window and the like, along with the continuous increase of the scale of urban construction, the types of the doors and windows are more and more, people also provide higher requirements for the diversity of the functions of the doors and windows, but the existing automatic doors and windows have certain defects.
The existing automatic doors and windows mostly do not have the function of preventing clamping, when people or objects stop at the closed position of the automatic doors and windows, the people or the objects are easily injured by extrusion due to the closing of the automatic doors and windows, the structure of a few of clamping-proof devices is complex, and the installation work on the surface of a door body cannot be conveniently carried out, so that certain limitation is realized.
Disclosure of Invention
The invention aims to provide a contact type automatic door and window all-dimensional anti-pinch safety device, and aims to solve the problems that most of existing automatic doors and windows do not have an anti-pinch function, are easily damaged by extrusion due to closing of the automatic doors and windows, and few anti-pinch devices are complex in structure and cannot be conveniently installed on the surface of a door body.
In order to achieve the purpose, the invention provides the following technical scheme: a contact type omnibearing anti-clamping safety device for automatic doors and windows comprises a base body, a first light touch switch, a second light touch switch and a door body, wherein the first light touch switch is installed on one side of the base body, a groove is formed in the surface of the base body and is positioned on two sides of the first light touch switch, an installation block is arranged on one side of the base body, the second light touch switch is installed inside the installation block, the tail end of the installation block is installed inside the groove in an embedded mode, a decorative strip is arranged on one side of the base body, the decorative strip and the second light touch switch are respectively positioned on opposite sides of the base body, an insertion block is fixed on the surface of the decorative strip and is installed inside the groove in an embedded mode, a bayonet is arranged inside the base body, a cushion pad is installed on the surface of the inner wall of the bayonet, a containing groove is formed in the inside of the, and one side of stopper is connected with the adjusting bolt to the adjusting bolt runs through from the surface of base member, one side of base member is provided with a body, and the surface of the body has seted up the mounting groove to the internal connection of mounting groove has the base member, the surface mounting of base member has the telescopic link, and the end-to-end connection of telescopic link has vacuum chuck, and vacuum chuck's the surface and the surface interconnect of the body.
Preferably, the decorative strip and the second light touch switch are symmetrically arranged about the center point of the base body, and the decorative strip and the second light touch switch and the groove form a clamping connection dismounting and mounting structure.
Preferably, the limiting block is arranged to be of a rectangular structure, the limiting block and the accommodating groove form a sliding structure, and the limiting block is connected with the door body in a laminating mode.
Preferably, the adjusting bolt is rotatably connected with the limiting block, and the adjusting bolt is in threaded connection with the base body.
Preferably, the door body and the base body form a detachable mounting structure, and the base body is connected with the mounting groove in a clamping manner.
Preferably, the telescopic rod is arranged in an inclined structure, the telescopic rod and the base body form a rotating structure, and the telescopic rod is symmetrically arranged about the central point of the base body.
Compared with the prior art, the invention has the beneficial effects that: the contact type automatic door and window all-directional anti-clamping safety device,
1. the bayonet, the accommodating groove and the limiting blocks are arranged in the base body, the base body can be quickly installed on the surface of the door body through the bayonet, and the symmetrically arranged limiting blocks can be driven to be firmly clamped on two sides of the door body through rotating the adjusting bolt, so that the stability of the base body in the surface installation of the door body is improved, and the complexity of operation during the installation of the base body can be reduced;
2. the surface of the base body is provided with the first light touch switch and the second light touch switch, and when a person or an object touches the light touch switches, the first light touch switches or the second light touch switches can transmit signals to control equipment of the door body, so that the operation of the door body is stopped, and a better anti-pinch effect is achieved;
3. the surface of the base body is provided with the groove, the decorative strip and the second light touch switch can be assembled and disassembled on the base body according to actual needs by installing the groove, the installation block and the insertion block, the flexibility of the device in the use process is greatly improved, and the door body can be prevented from being clamped and collided in an all-round manner under the combined action of the first light touch switch and the second light touch switch;
4. be provided with telescopic link and vacuum chuck, after the base member was installed on door body surface, can drive the surface that vacuum chuck adsorbed the door plant through rotating the telescopic link to further increased the base member at door body surface mounting's stability, avoided the base member not hard up to appear in the in-process that uses, ensured the normal work of base member.
Drawings
FIG. 1 is a schematic top view of the present invention;
FIG. 2 is a schematic view of a front view structure of the installation of the base body and the door body;
FIG. 3 is a schematic view of the right side view of the installation structure of the base body and the telescopic rod of the present invention;
fig. 4 is a schematic view of an installation front view structure of the accommodating groove and the limiting block of the present invention.
In the figure: 1. a substrate; 2. a first tact switch; 3. a groove; 4. mounting blocks; 5. a second tact switch; 6. decorating strips; 7. inserting a block; 8. a bayonet; 9. a cushion pad; 10. a containing groove; 11. a limiting block; 12. adjusting the bolt; 13. a door body; 14. mounting grooves; 15. a telescopic rod; 16. and (4) vacuum chuck.
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. 1-4, the present invention provides a technical solution: a contact type automatic omnibearing anti-pinch safety device for doors and windows comprises a base body 1, a first light touch switch 2, a groove 3, an installation block 4, a second light touch switch 5, a decoration strip 6, an insertion block 7, a bayonet 8, a cushion pad 9, a containing groove 10, a limiting block 11, an adjusting bolt 12, a door body 13, an installation groove 14, a telescopic rod 15 and a vacuum sucker 16, wherein the first light touch switch 2 is installed on one side of the base body 1, the groove 3 is formed in the surface of the base body 1, the groove 3 is positioned on two sides of the first light touch switch 2, the installation block 4 is arranged on one side of the base body 1, the second light touch switch 5 is installed inside the installation block 4, the tail end of the installation block 4 is installed inside the groove 3 in an embedded mode, the decoration strip 6 is arranged on one side of the base body 1, the decoration strip 6 and the second light touch switch 5 are respectively positioned on opposite sides of the base body, the inserting block 7 is installed inside the groove 3 in an embedded mode, a bayonet 8 is arranged inside the base body 1, a cushion pad 9 is installed on the surface of the inner wall of the bayonet 8, a containing groove 10 is formed inside the bayonet 8, a limiting block 11 is installed inside the containing groove 10, an adjusting bolt 12 is connected to one side of the limiting block 11 and penetrates through the surface of the base body 1, a door body 13 is arranged on one side of the base body 1, an installing groove 14 is formed in the surface of the door body 13, the base body 1 is connected inside the installing groove 14, an expansion rod 15 is installed on the surface of the base body 1, the tail end of the expansion rod 15 is connected with a vacuum sucker 16, and the surface of the vacuum sucker 16 is connected with;
the decoration strip 6 and the second light touch switch 5 are symmetrically arranged relative to the center point of the base body 1, the decoration strip 6 and the second light touch switch 5 and the groove 3 form a clamping connection dismounting and mounting structure, the decoration strip 6 and the second light touch switch 5 are respectively positioned on opposite sides of the base body 1, the surface functions of the base body 1 can be switched from different directions, the decoration strip 6 or the second light touch switch 5 is mounted in the groove 3 on the surface of the base body 1 according to actual needs, and the flexibility of the base body 1 in the using process can be improved;
the limiting block 11 is arranged to be in a rectangular structure, the limiting block 11 and the accommodating groove 10 form a sliding structure, the limiting block 11 is connected with the door body 13 in a fitting manner, and the limiting block 11 in the rectangular structure is arranged in the accommodating groove 10 to have a good limiting effect on the movement of the limiting block 11, so that the limiting block 11 can be quickly attached to the surface of the door body 13, and the convenience of installing the base body 1 on the surface of the door body 13 is improved;
the adjusting bolt 12 is rotatably connected with the limiting block 11, the adjusting bolt 12 is in threaded connection with the base body 1, and the adjusting bolt 12 is rotatably connected with the limiting block 11, so that when the adjusting bolt 12 rotates, the limiting block 11 cannot rotate synchronously, the surface of the limiting block 11 cannot generate torsional force, and the relative position of the limiting block 11 can be adjusted by utilizing the thread direction of the surface of the adjusting bolt 12, so that the base body 1 can be easily installed on the surfaces of the door bodies 13 with different sizes, and the application range of the device is expanded;
the door body 13 and the base body 1 form a disassembly and assembly structure, the base body 1 is connected with the installation groove 14 in a clamping manner, the base body 1 is clamped in the installation groove 14, the stability of the base body 1 on the surface installation of the door body 13 can be improved, the phenomenon that the base body 1 is loosened in the use process is avoided, and the normal work of the base body 1 is guaranteed;
the telescopic rod 15 is arranged to be an inclined structure, the telescopic rod 15 and the base body 1 form a rotating structure, the telescopic rod 15 is symmetrically arranged about the center point of the base body 1, the vacuum sucker 16 can be moved to the optimal supporting position by rotating the telescopic rod 15 on the base body 1, and the stability of the surface mounting of the base body 1 on the door body 13 can be further improved by utilizing the combined action of the vacuum sucker 16 and the telescopic rod 15;
the working principle is as follows: when the contact type automatic door and window omnibearing anti-clamping safety device is used, according to the graph shown in fig. 1-4, firstly, a mounting groove 14 is arranged on the surface of a door body 13 according to the protection range required, a bayonet 8 is inserted from one side of the mounting groove 14, a base body 1 is mounted inside the mounting groove 14, then an adjusting bolt 12 is rotated, the thread trend on the surface of the adjusting bolt 12 is utilized to drive a limiting block 11 to move towards the door body 13 inside a containing groove 10, the limiting block 11 is firmly attached to the surface of the door body 13, after the base body 1 is mounted, an expansion link 15 is rotated, a vacuum suction cup 16 is driven to move to the optimal supporting position through the expansion link 15, and the vacuum suction cup 16 is adsorbed on the surface of the door body 13, the expansion link 15 and the vacuum suction cup 16 can play a good auxiliary supporting role in mounting the base body 1 on the surface of the door body 13, so, then, the mounting block 4 or the insertion block 7 is inserted from the upper part of the groove 3 according to actual needs, so that the mounting work of the second light touch switch 5 or the decoration strip 6 on the surface of the base body 1 can be completed, and the base body 1 can better meet the use requirements under different conditions;
after the base body 1 is installed, the base body 1 can be normally used, when the first light touch switch 2 or the second light touch switch 5 touches the object or the sum of the objects, the sensors inside the first and second tact switches 2 and 5 can transmit signals to the control device of the door body 13, the operation of the door body 13 is stopped by the control equipment of the door body 13, so that the door body 13 can not clamp or hit people and objects, the better anti-clamping and anti-collision effects are achieved, the second tact switches 5 are symmetrically arranged on the surfaces of the two sides of the base body 1, can carry out omnibearing dead-angle-free anti-pinch and anti-collision with the first tact switch 2, by arranging the matrix 1 at different heights on the surface of the door body 13, the protection range of the door body 13 can be changed, the buffer pad 9 is arranged inside the bayonet 8, rigid contact between the base body 1 and the door body 13 can be avoided, and the service life of the base body 1 can be prolonged.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides an automatic door and window of contact all-round safety device of preventing pressing from both sides, includes base member (1), first dabbing switch (2), second dabbing switch (5) and the door body (13), its characterized in that: the touch switch is characterized in that a first touch switch (2) is installed on one side of a base body (1), a groove (3) is formed in the surface of the base body (1), the groove (3) is located on two sides of the first touch switch (2), an installation block (4) is arranged on one side of the base body (1), a second touch switch (5) is installed inside the installation block (4), the tail end of the installation block (4) is installed inside the groove (3) in an embedded mode, a decoration strip (6) is arranged on one side of the base body (1), the decoration strip (6) and the second touch switch (5) are located on opposite sides of the base body (1) respectively, an insertion block (7) is fixed on the surface of the decoration strip (6), the insertion block (7) is installed inside the groove (3) in an embedded mode, a bayonet (8) is arranged inside the base body (1), and a cushion pad (9) is installed on the surface of the inner wall of the, and storage tank (10) have been seted up to the inside of bayonet socket (8), the internally mounted of storage tank (10) has stopper (11), and one side of stopper (11) is connected with adjusting bolt (12) to adjusting bolt (12) run through from the surface of base member (1), one side of base member (1) is provided with a body (13), and the surface of a body (13) has seted up mounting groove (14) to the internally connected of mounting groove (14) has base member (1), the surface mounting of base member (1) has telescopic link (15), and the end-to-end connection of telescopic link (15) has vacuum chuck (16), and the surface interconnect of vacuum chuck (16) and a body (13).
2. The omnibearing contact-type anti-pinch safety device for the automatic doors and windows of claim 1, which is characterized in that: the decorative strip (6) and the second light touch switch (5) are symmetrically arranged about the center point of the base body (1), and the decorative strip (6) and the second light touch switch (5) form a dismounting and mounting structure connected with the groove (3) in a clamping manner.
3. The omnibearing contact-type anti-pinch safety device for the automatic doors and windows of claim 1, which is characterized in that: the limiting block (11) is of a rectangular structure, the limiting block (11) and the accommodating groove (10) form a sliding structure, and the limiting block (11) is connected with the door body (13) in a laminating mode.
4. The omnibearing contact-type anti-pinch safety device for the automatic doors and windows of claim 1, which is characterized in that: the adjusting bolt (12) is rotatably connected with the limiting block (11), and the adjusting bolt (12) is in threaded connection with the base body (1).
5. The omnibearing contact-type anti-pinch safety device for the automatic doors and windows of claim 1, which is characterized in that: the door body (13) and the base body (1) form a disassembly and assembly structure, and the base body (1) is connected with the mounting groove (14) in a clamping mode.
6. The omnibearing contact-type anti-pinch safety device for the automatic doors and windows of claim 1, which is characterized in that: the telescopic rod (15) is arranged to be of an inclined structure, the telescopic rod (15) and the base body (1) form a rotating structure, and the telescopic rod (15) is symmetrically arranged relative to the central point of the base body (1).
7. The omnibearing contact-type anti-pinch safety device for the automatic doors and windows of claim 1, which is characterized in that: the working principle of the anti-pinch safety device is as follows: when the contact type automatic door and window omnibearing anti-pinch safety device is used, firstly, a mounting groove (14) is formed in the surface of a door body (13) according to the protection range required, a bayonet (8) is inserted from one side of the mounting groove (14), a base body (1) is mounted inside the mounting groove (14), then an adjusting bolt (12) is rotated, the thread trend of the surface of the adjusting bolt (12) is utilized to drive a limiting block (11) to move towards the direction of the door body (1) inside a containing groove (10), the limiting block (11) is firmly attached to the surface of the door body (13), after the base body (1) is mounted, a telescopic rod (15) is rotated, the vacuum sucker (16) is driven to move to the optimal supporting position through the telescopic rod (15), the vacuum sucker (16) is adsorbed on the surface of the door body (13), and the telescopic rod (15) and the vacuum sucker (16) can play a good auxiliary supporting role in mounting the surface of the door body (13) on the base body (1), therefore, the stability of the base body (1) during working is improved, and then the mounting block (4) or the inserting block (7) is inserted from the upper part of the groove (3) according to actual needs, so that the mounting work of the second tact switch (5) or the decorative strip (6) on the surface of the base body (1) can be completed;
after the base body (1) is installed, the base body (1) can be normally used, when the first light touch switch (2) or the second light touch switch (5) touches or is touched with or an object, the sensors in the first light touch switch (2) and the second light touch switch (5) can transmit signals to the control equipment of the door body (13), the control equipment of the door body (13) stops the operation of the door body (13), so that the door body (13) cannot be clamped or hit people and the object, the second light touch switches (5) are symmetrically installed on the surfaces of two sides of the base body (1), the second light touch switches and the first light touch switch (2) can be used for carrying out omnibearing dead-angle-free anti-pinch and anti-collision, the base body (1) is installed at different heights of the surface of the door body (13), the protection range of the door body (13) can be changed, a buffer cushion (9) is installed inside the bayonet (8), rigid contact between the base body (1) and the door body (13) can be avoided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011145283.0A CN112227864A (en) | 2020-10-23 | 2020-10-23 | Contact type automatic omnibearing anti-pinch safety device for doors and windows |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011145283.0A CN112227864A (en) | 2020-10-23 | 2020-10-23 | Contact type automatic omnibearing anti-pinch safety device for doors and windows |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112227864A true CN112227864A (en) | 2021-01-15 |
Family
ID=74110534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011145283.0A Pending CN112227864A (en) | 2020-10-23 | 2020-10-23 | Contact type automatic omnibearing anti-pinch safety device for doors and windows |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112227864A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225463A (en) * | 2013-04-15 | 2013-07-31 | 郑运婷 | Anti-pinch glass window of automobile door |
| CN205314780U (en) * | 2016-01-14 | 2016-06-15 | 苏州工业职业技术学院 | Intelligence electric window's safety control |
| JP2016124425A (en) * | 2015-01-05 | 2016-07-11 | 三菱電機株式会社 | Gate device |
| CN205936108U (en) * | 2016-08-23 | 2017-02-08 | 尹博实 | Contact automatically -controlled door collision avoidance system |
| CN207936937U (en) * | 2018-03-27 | 2018-10-02 | 蚌埠市特种设备监督检验中心 | A kind of clamping device of sonigauge |
| CN209126484U (en) * | 2018-12-17 | 2019-07-19 | 重庆五一高级技工学校 | A kind of vehicle glass finger pinch device |
| CN209280070U (en) * | 2018-11-12 | 2019-08-20 | 安徽中控仪表有限公司 | A kind of flow integrator |
| CN110177442A (en) * | 2019-06-17 | 2019-08-27 | 新疆工程学院 | A kind of electronic information wireless communication device |
| JP6592844B2 (en) * | 2015-11-10 | 2019-10-23 | 公益財団法人鉄道総合技術研究所 | Door clamp detector |
-
2020
- 2020-10-23 CN CN202011145283.0A patent/CN112227864A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103225463A (en) * | 2013-04-15 | 2013-07-31 | 郑运婷 | Anti-pinch glass window of automobile door |
| JP2016124425A (en) * | 2015-01-05 | 2016-07-11 | 三菱電機株式会社 | Gate device |
| JP6592844B2 (en) * | 2015-11-10 | 2019-10-23 | 公益財団法人鉄道総合技術研究所 | Door clamp detector |
| CN205314780U (en) * | 2016-01-14 | 2016-06-15 | 苏州工业职业技术学院 | Intelligence electric window's safety control |
| CN205936108U (en) * | 2016-08-23 | 2017-02-08 | 尹博实 | Contact automatically -controlled door collision avoidance system |
| CN207936937U (en) * | 2018-03-27 | 2018-10-02 | 蚌埠市特种设备监督检验中心 | A kind of clamping device of sonigauge |
| CN209280070U (en) * | 2018-11-12 | 2019-08-20 | 安徽中控仪表有限公司 | A kind of flow integrator |
| CN209126484U (en) * | 2018-12-17 | 2019-07-19 | 重庆五一高级技工学校 | A kind of vehicle glass finger pinch device |
| CN110177442A (en) * | 2019-06-17 | 2019-08-27 | 新疆工程学院 | A kind of electronic information wireless communication device |
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