CN207938920U - A kind of socket that can lift projector for teaching screen on demand - Google Patents
A kind of socket that can lift projector for teaching screen on demand Download PDFInfo
- Publication number
- CN207938920U CN207938920U CN201820454898.3U CN201820454898U CN207938920U CN 207938920 U CN207938920 U CN 207938920U CN 201820454898 U CN201820454898 U CN 201820454898U CN 207938920 U CN207938920 U CN 207938920U
- Authority
- CN
- China
- Prior art keywords
- armature
- socket
- tension spring
- plastic shell
- sheet metal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000002184 metal Substances 0.000 claims abstract description 24
- 229910052751 metal Inorganic materials 0.000 claims abstract description 24
- 230000007423 decrease Effects 0.000 claims description 13
- 230000000630 rising effect Effects 0.000 claims description 9
- 239000004568 cement Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Projection Apparatus (AREA)
Abstract
The utility model discloses a kind of sockets that can lift projector for teaching screen on demand,Including plastic shell,The plastic shell is internally provided with power device,The power device includes the first socket sheet metal and the second socket sheet metal,It is provided with tension spring between the first socket sheet metal and the second socket sheet metal,The bottom end of the tension spring is fixed on plastic shell,The top of the tension spring is connected with armature,The side of the tension spring is provided with armature bearing,The armature bearing is fixed on plastic shell,The armature is hinged on armature bearing,The side of the armature bearing far from tension spring is provided with coil,The bottom end of the coil is fixed on plastic shell,The coil is in immediately below armature,The utility model is simple in structure,It is cheap,It does not need complicated circuit and can be realized as automation mechanized operation,It is suitble to promote the use of.
Description
Technical field
The utility model is related to jack technology fields, specially a kind of to lift inserting for projector for teaching screen on demand
Seat.
Background technology
With the development of science and technology, social progress, multimedia teaching, which has become, a kind of is increasingly welcome by teachers and students
Teaching method, wherein projector are then the most common types.When using projector, need projector's screen after connecting computer
Curtain is fallen, and after use finishes, then projector screen is risen, avoids taking up an area.But for many new hands, usually
It will appear the lifting circuit wiring terminals that can not find projector screen, or terminate to forget to pack up the thing of projector screen after giving lessons
Occur, greatly reduces working efficiency.
Utility model content
The purpose of this utility model is to provide a kind of sockets that can lift projector for teaching screen on demand, in solution
State the problem of being proposed in background technology.
To achieve the above object, the utility model provides the following technical solutions：
A kind of socket that can lift projector for teaching screen on demand, including plastic shell are set inside the plastic shell
It is equipped with power device, the power device includes the first socket sheet metal and the second socket sheet metal, the first socket metal
Tension spring is provided between piece and the second socket sheet metal, the bottom end of the tension spring is fixed on plastic shell, described
The top of tension spring is connected with armature, and the side of the tension spring is provided with armature bearing, and the armature bearing is fixed on
On plastic shell, the armature is hinged on armature bearing, and the side of the armature bearing far from tension spring is provided with coil,
The bottom end of the coil is fixed on plastic shell, and the coil is in immediately below armature, and the armature is far from tension spring
One end is provided with contact, is provided with decline circuit wiring terminals immediately below the contact, the decline circuit wiring terminals are fixed on modeling
On glue shell, the contact is arranged above rising circuit wiring terminals.
Preferably, the armature holder top is provided with groove corresponding with armature, and articulated shaft is provided in groove, institute
It states and is provided with axis hole on armature, armature is hingedly fixed on armature bearing by the articulated shaft across axis hole.
Preferably, described one end for rising circuit wiring terminals is connected with connecting plate, and the connecting plate is fixed on plastic shell
On.
Preferably, the coil is connected with the first socket sheet metal.
Compared with prior art, the utility model has the beneficial effects that：When computer power interface is inserted into socket by user
When, projector screen declines automatically, and when user takes out computer power interface, screen rises automatically, effectively keeps away a liter new person
It can not find switch or when people leaves forgotten to rise the thing of screen.The utility model is simple in structure, cheap, does not need complexity
Circuit can be realized as automation mechanized operation, be suitble to promote the use of.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram for the socket that can lift projector for teaching screen on demand；
Fig. 2 is the schematic diagram of the utility model practical application.
In figure：1- the first socket sheet metals, 2- the second socket sheet metals, 3- tension springs, 4- armature bearings, 5- are hinged
Axis, 6- armature, 7- contacts, 8- coils, 9- decline circuit wiring terminals, and 10- rises circuit wiring terminals, 11- connecting plates.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Referring to Fig. 1, the utility model provides a kind of technical solution：It is a kind of to lift projector for teaching screen on demand
Socket, including plastic shell, the plastic shell are internally provided with power device, and the power device includes the first socket metal
Piece 1 and the second socket sheet metal 2 are provided with tension spring 3 between the first socket sheet metal 1 and the second socket sheet metal 2,
The bottom end of the tension spring 3 is fixed on plastic shell, and the top of the tension spring 3 is connected with armature 6, the pulling force bullet
The side of spring 3 is provided with armature bearing 4, and the armature bearing 4 is fixed on plastic shell, and the armature 6 is hinged on armature branch
On seat 4, the side of the armature bearing 4 far from tension spring 3 is provided with coil 8, and the bottom end of the coil 8 is fixed on outside plastic cement
On shell, the coil 8 is in immediately below armature 6, and the one end of the armature 6 far from tension spring 3 is provided with contact 7, described to touch
It is provided with immediately below first 7 and declines circuit wiring terminals 9, the decline circuit wiring terminals 9 are fixed on plastic shell, the contact 7
It being arranged above and rises circuit wiring terminals 10, the decline circuit wiring terminals 9 are electrically connected with the decline circuit of projector screen,
The rising circuit wiring terminals 10 are electrically connected with the rising circuit of projector screen.
4 top of armature bearing is provided with groove corresponding with armature, and articulated shaft 5 is provided in groove, the rank
Axis hole is provided on iron 6, armature 6 is hingedly fixed on armature bearing 4 by the articulated shaft 5 across axis hole, so that armature 6
It can be swung up and down in certain angular range.
Described one end for rising circuit wiring terminals 10 is connected with connecting plate 11, and the connecting plate 11 is fixed on plastic shell
On.
The coil 8 is connected with the first socket sheet metal 1.
If the socket of Fig. 2, the utility model correspond to direction switch, when power cord of notebook computer is inserted into socket, decline
Switch is opened, and screen declines, and until corresponding limit switch disconnects, screen stops declining.Conversely, working as power cord of notebook computer
When extraction, rising switch is opened, and screen rises, and until corresponding limit switch disconnects, screen stops rising.
The operation principle of the utility model is：Under normal condition, under the action of tension spring 3, one end of armature 6 is drawn
Under, the one end for being connected with contact 7 tilts, and contact 7 is connected with circuit wiring terminals 10 are risen, and forms normally closed circuit, projects at this time
Machine screen is in rolled condition；When plug is inserted into socket, the first socket sheet metal 1 and the second socket sheet metal 2 constitute master
The circuit of circuit, since coil 8 is connected with the first socket sheet metal 1, coil 8 is powered at this time, generates magnetic field, and magnetic force attracts armature
6 decline, and band moving contact 7 is downward, disconnect and rise the connection of circuit wiring terminals 10, and contact 7, which touches, declines circuit wiring terminals 9,
And decline circuit wiring terminals 9 and be electrically connected with the decline circuit of screen, constitute circuit so that screen declines, without using
Person's operation bidirectional, projector screen decline automatically；After pulling the plug out of the socket, main circuit open circuit, coil 8 loses magnetic force, in pulling force bullet
Under the action of spring 3, armature 6 resets, and continues to form normally closed circuit with rising circuit wiring terminals 10, with 9 groups of circuit wiring terminals of decline
At normal open circuit.
Claims (4)
1. a kind of socket that can lift projector for teaching screen on demand, including plastic shell, it is characterised in that：Outside the plastic cement
Shell is internally provided with power device, and the power device includes the first socket sheet metal (1) and the second socket sheet metal (2), institute
It states and is provided with tension spring (3) between the first socket sheet metal (1) and the second socket sheet metal (2), the tension spring (3)
Bottom end is fixed on plastic shell, and the top of the tension spring (3) is connected with armature (6), the side of the tension spring (3)
It is provided with armature bearing (4), the armature bearing (4) is fixed on plastic shell, and the armature (6) is hinged on armature bearing
(4) on, side of the armature bearing (4) far from tension spring (3) is provided with coil (8), and the bottom end of the coil (8) is fixed
On plastic shell, the coil (8) is in immediately below armature (6), and the one end of the armature (6) far from tension spring (3) is set
It is equipped with contact (7), is provided with immediately below the contact (7) and declines circuit wiring terminals (9), the decline circuit wiring terminals (9) are solid
It is scheduled on plastic shell, the contact (7), which is arranged above, rises circuit wiring terminals (10).
2. a kind of socket that can lift projector for teaching screen on demand according to claim 1, it is characterised in that：It is described
Armature bearing (4) top is provided with groove corresponding with armature, and articulated shaft (5) is provided in groove, is set on the armature (6)
It is equipped with axis hole, armature (6) is hingedly fixed on armature bearing (4) by the articulated shaft (5) across axis hole.
3. a kind of socket that can lift projector for teaching screen on demand according to claim 1, it is characterised in that：It is described
The one end for rising circuit wiring terminals (10) is connected with connecting plate (11), and the connecting plate (11) is fixed on plastic shell.
4. a kind of socket that can lift projector for teaching screen on demand according to claim 1, it is characterised in that：It is described
Coil (8) is connected with the first socket sheet metal (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820454898.3U CN207938920U (en) | 2018-04-02 | 2018-04-02 | A kind of socket that can lift projector for teaching screen on demand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820454898.3U CN207938920U (en) | 2018-04-02 | 2018-04-02 | A kind of socket that can lift projector for teaching screen on demand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207938920U true CN207938920U (en) | 2018-10-02 |
Family
ID=63656485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820454898.3U Expired - Fee Related CN207938920U (en) | 2018-04-02 | 2018-04-02 | A kind of socket that can lift projector for teaching screen on demand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207938920U (en) |
-
2018
- 2018-04-02 CN CN201820454898.3U patent/CN207938920U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181002 |