CN2106460U - Radio frequency signal converter for tv and video recorder - Google Patents
Radio frequency signal converter for tv and video recorder Download PDFInfo
- Publication number
- CN2106460U CN2106460U CN91229756U CN91229756U CN2106460U CN 2106460 U CN2106460 U CN 2106460U CN 91229756 U CN91229756 U CN 91229756U CN 91229756 U CN91229756 U CN 91229756U CN 2106460 U CN2106460 U CN 2106460U
- Authority
- CN
- China
- Prior art keywords
- tape recorder
- video tape
- plug
- jack
- strip
- 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.)
- Granted
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Abstract
The utility model provides a radio frequency signal converter for TVs and video recorders, which comprises a video recorder input wire, a video recorder output wire, an antenna jack, a TV jack and a single-knife double-throw switch. The utility model needs only one wiring, and can achieve the purposes of watching TV programs, seeing videotape programs and recording TV programs through switching of the single-knife double-throw switch. Multiple operations of insertion and pull are not needed so as to avoid the problem of poor contact caused by multiple operations of insertion and pull and reduce the trouble of inserting the wires.
Description
The utility model relates to the radiofrequency signal switching device shifter of a kind of TV and video recording equipment, especially a kind of TV, video recording radiofrequency signal switch.
Sell a kind of distribute type transducer in the market, promptly the next TV RF signals of antenna, again be matched to the transmission system of two 25 Ω impedances, one the tunnel gives television set, one the tunnel gives video tape recorder, when seeing the TV programme that needs record, plug the power supply of video tape recorder and just can record at any time like this.But when to watch video shows with on program the time, must dial the radiofrequency signal on the television set (coming) from antenna, plug the radiofrequency signal of coming from video tape recorder, frequent dialling is slotting, can cause wearing and tearing, so that loose contact etc.
The purpose of this utility model provides a kind of the TV, the video recording radiofrequency signal switch that need primary connection can see TV, watch video shows and be with program and record TV programme.
Technical solution of the present utility model is: a kind of TV, video recording radiofrequency signal switch, comprise video tape recorder input wires 1, video tape recorder output connection 2, antenna jack 3, television set jack 4 and single-pole double-throw switch (SPDT) K1, it is characterized in that: the two ends that single-pole double-throw switch (SPDT) K1 and plug-in strip join " a ", " b " connect antenna jack 3, television set jack 4, " a1 " of plug-in strip one side, " b1 " respectively and hold short circuit, and plug-in strip opposite side " a2 " " b2 " end connects video tape recorder input wires 1, video tape recorder output connection 2 respectively.
Another kind of technical solution of the present utility model is: a kind of TV, video recording radiofrequency signal switch, comprise video tape recorder input wires 1, video tape recorder output connection 2, antenna jack 3, television set jack 4 and SP3T K switch 2, it is characterized in that: three ends " a ", " b ", " c " that SP3T K switch 2 and plug-in strip join, connect antenna jack 3, television set jack 4 and antenna cable respectively and shield worn-out line 5, " a1 " of plug-in strip one side, " b1 ", " c1 " end, " a
1", " b
1" the end short circuit, " c1 " end connects worn-out line 6 of TV screen and the worn-out line 7 of video tape recorder cutout screen respectively, and " a2 " " b2 " " c2 " end of plug-in strip opposite side connects the worn-out line 8 of video tape recorder input wires 1, video tape recorder output connection 2 and video tape recorder input screen respectively.
The utility model compared with prior art only needs primary connection, can see TV, see video tape program and record TV programme, do not need repeatedly to dial slotting, thereby can not cause because of the consequence of repeatedly dialling the slotting loose contact that causes and the trouble that has reduced patch.
Accompanying drawing 1 is the schematic diagram of the utility model embodiment 1.
Accompanying drawing 2 is the schematic diagram of the utility model embodiment 1.
Accompanying drawing 3 is the schematic diagram of the utility model embodiment 2.
Below in conjunction with drawings and Examples the utility model is further described.
As shown in Figure 1, shell 9 is selected plastics for use, and the handle of video tape recorder input wires 1, video tape recorder output connection 2, antenna jack 3, television set jack 4 and K switch 1 communicates with the external world by the hole that is located on the shell.In the shell as shown in Figure 2, the two ends that commutator K1 and plug-in strip join " a ", " b " connect antenna jack 3, television set jack 4 respectively, " a1 " " b1 " end short circuit of plug-in strip one side, " a2 " " b2 " end of plug-in strip opposite side connects video tape recorder input wires 1, video tape recorder output connection 2 respectively.75 Ω radio signal transmission cables are all selected in video tape recorder input wires 1 and video tape recorder output connection 2 for use.
The embodiment of the another kind of technical solution of the utility model as shown in Figure 3, (profile as shown in Figure 1), SP3T K switch 2 connects antenna jack 3 respectively with three ends " a " " b ", " c " that plug-in strip joins, television set jack 4 and antenna cable shield worn-out line 5, " a1 " of plug-in strip one side, " b1 ", " c1 " end, " a
1" " b
1" short circuit, " c1 " end connects worn-out line 6 of TV screen and the worn-out line 7 of video tape recorder cutout screen respectively, and " a2 " of plug-in strip opposite side, " b2 ", " c2 " end connect the worn-out line 8 of video tape recorder input wires 1, video tape recorder output connection 2 and video tape recorder input screen respectively.
During use, if see TV programme, plug-in strip can be thrown to " a1 ",
" b1 ", " c1 " end in the time will watching video shows band program or record TV programme, can be thrown plug-in strip to " a2 ", " b2 ", " c2 " end.
Claims (2)
1, a kind of TV, video recording radiofrequency signal switch, comprise video tape recorder input wires 1, video tape recorder output connection 2, antenna jack 3, television set jack 4 and single-pole double-throw switch (SPDT) K1, it is characterized in that: the two ends that single-pole double-throw switch (SPDT) K1 and plug-in strip join " a ", " b " end connects antenna jack 3, television set jack 4, " a1 " of plug-in strip one side, " b1 " respectively and hold short circuit, and plug-in strip opposite side " a2 " " b2 " is held and connect video tape recorder input wires 1, video tape recorder output connection 2 respectively.
2, a kind of TV, video recording radiofrequency signal switch, comprise video tape recorder input wires 1, video tape recorder output connection 2, antenna jack 3, television set jack 4 and SP3T K switch 2, it is characterized in that: three ends " a " that SP3T K switch 2 and plug-in strip join, " b ", " c " connects antenna jack 3 respectively, television set jack 4 and antenna cable shield worn-out line 5, " a1 " of plug-in strip one side, " b1 ", " c1 " end, " a1 ", " b1 " holds short circuit, " c1 " end connects worn-out line 6 of TV screen and the worn-out line 7 of video tape recorder cutout screen respectively, and " a2 " " b2 " " c2 " end of plug-in strip opposite side connects video tape recorder input wires 1 respectively, the worn-out line 8 of video tape recorder output connection 2 and video tape recorder input screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91229756U CN2106460U (en) | 1991-12-04 | 1991-12-04 | Radio frequency signal converter for tv and video recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91229756U CN2106460U (en) | 1991-12-04 | 1991-12-04 | Radio frequency signal converter for tv and video recorder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2106460U true CN2106460U (en) | 1992-06-03 |
Family
ID=4935189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN91229756U Granted CN2106460U (en) | 1991-12-04 | 1991-12-04 | Radio frequency signal converter for tv and video recorder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2106460U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107860583A (en) * | 2017-10-25 | 2018-03-30 | 中国航发动力股份有限公司 | The conversion equipment of analog temperature TT＆C system and digital temperature control system |
-
1991
- 1991-12-04 CN CN91229756U patent/CN2106460U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107860583A (en) * | 2017-10-25 | 2018-03-30 | 中国航发动力股份有限公司 | The conversion equipment of analog temperature TT＆C system and digital temperature control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |