CN203562751U - Anti-wire-breaking protection device of high-pressure cleaning machine - Google Patents
Anti-wire-breaking protection device of high-pressure cleaning machine Download PDFInfo
- Publication number
- CN203562751U CN203562751U CN201320733723.3U CN201320733723U CN203562751U CN 203562751 U CN203562751 U CN 203562751U CN 201320733723 U CN201320733723 U CN 201320733723U CN 203562751 U CN203562751 U CN 203562751U
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- resistor
- fuse
- relay
- electric control
- optocoupler
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Abstract
The utility model provides an anti-wire-breaking protection device of a high-pressure cleaning machine, which comprises an electric control gun part and an electric control cabinet part. The electric control gun part is composed of a resistor R2 and a reed switch GH1, wherein the resistor R2 and the reed switch GH1 are connected in series and the two ends of the series circuit are respectively connected with the two ends of a resistor R1 in the electric control cabinet part through two connecting wires. The electric control cabinet part is composed of a fuse F1, an optical coupler U1, the resistor R1 and a relay K1. One end of the fuse F1 is connected with a power supply VCC, and the other end of the fuse F1 is connected with the anode of the input diode of the optical coupler U1. One end of the resistor R1 is connected with the cathode of the input diode of the optical coupler U1, and the other end of the resistor R1 is connected with a ground wire. One end of the relay K1 is connected with the emitter electrode of the output triode of the optical coupler U1, and the other end of the relay K1 is connected with the ground wire. The collector electrode of the output triode of the optical coupler U1 is connected with the power supply VCC. The normally-open contact of the relay K1 is functioning as an output contact. According to the technical scheme of the utility model, the anti-wire-breaking protection device is additionally endowed with the short-circuit protection function for communication cables. Meanwhile, the original structure of an electric control cabinet and an electric control gun is kept unchanged, wherein the connection is realized by means of two-core cables.
Description
Technical field
The utility model belongs to circuit protection technical field, particularly relates to a kind of breaking line preventive protective device of jetting machine.
Background technology
Jetting machine is that 2 core cables are connected with the connected mode of automatically controlled rifle at present. as shown in Figure 1, its operation principle is:
As shown in Figure 2, when 10 work of automatically controlled rifle, the tongue tube of automatically controlled rifle 10 inside is in closure state, and electric cabinet 20 receives and will start electromagnetically operated valve 30 after this signal and pressurize to whole system.
The advantage of this connected mode is: install simply, line is few, easily realizes, and debugging easily.
The shortcoming of this connected mode is: have certain potential safety hazard, when there is short circuit in the stube cable between automatically controlled rifle 10 and electric cabinet 20, electric cabinet 20 also can receive closure signal, thereby starting electromagnetically operated valve 30 pressurizes to whole system, if now staff's arrestment in time, easily damages staff and equipment.
Summary of the invention
In order to address the above problem, the purpose of this utility model is to provide a kind of breaking line preventive protective device of jetting machine.
In order to achieve the above object, the breaking line preventive protective device of the jetting machine that the utility model provides comprises automatically controlled rifle portion and electric cabinet portion, and two parts interconnect by two connecting lines; Wherein: automatically controlled rifle portion is in series and is formed by resistor R2 and tongue tube GH1, the two ends after its series connection are connected with the two ends of resistor R1 in electric cabinet portion by two connecting lines respectively; Electric cabinet portion comprises: fuse F1, optocoupler U1, resistor R1 and relay K 1; Wherein: one end of fuse F1 is connected with power supply VCC, the other end is connected with the input diode anode of optocoupler U1; One end of resistor R1 is connected with the input diode negative electrode of optocoupler U1, and the other end is connected with ground wire; One end of relay K 1 coil is connected with the emitter of optocoupler U1 output triode, and the other end is connected with ground wire; The output triode collector electrode of optocoupler U1 is connected with power supply VCC; The normally opened contact of relay K 1 is output contact, for controlling electromagnetically operated valve.
Described automatically controlled rifle portion is arranged on the inside of automatically controlled rifle.
Described electric cabinet portion is arranged on the inside of control cabinet.
Described fuse F1 adopts Self-resetting fuse.
The breaking line preventive protective device tool of the jetting machine that the utility model provides has the following advantages:
1) increase telecommunication cable short-circuit protection function.
2) do not destroy the structure of original control cabinet and automatically controlled rifle, still adopt 2 core cables to connect.
3) because fuse is that after short trouble is got rid of, whole system can normally be used from recovering insurance.
4) cost is very cheap.
Accompanying drawing explanation
Fig. 1 is the connection diagram of prior art mesohigh cleaning machine and automatically controlled rifle.
Fig. 2 is the catenation principle figure of prior art mesohigh cleaning machine and automatically controlled rifle.
The elementary diagram of the breaking line preventive protective device of the jetting machine that Fig. 3 provides for the utility model.
Embodiment
The breaking line preventive protective device of jetting machine the utility model being provided below in conjunction with the drawings and specific embodiments is elaborated, and wherein the parts identical with prior art adopt identical drawing reference numeral.
As shown in Figure 3, the breaking line preventive protective device of the jetting machine that the utility model provides comprises automatically controlled rifle portion 1 and electric cabinet portion 2, and two parts interconnect by two connecting lines; Wherein: automatically controlled rifle portion 1 is in series and is formed by resistor R2 and tongue tube GH1, the two ends after its series connection are connected with the two ends of resistor R1 in electric cabinet portion 2 by two connecting lines respectively; Electric cabinet portion 2 comprises: fuse F1, optocoupler U1, resistor R1 and relay K 1; Wherein: one end of fuse F1 is connected with power supply VCC, the other end is connected with the input diode anode of optocoupler U1; One end of resistor R1 is connected with the input diode negative electrode of optocoupler U1, and the other end is connected with ground wire; One end of relay K 1 coil is connected with the emitter of optocoupler U1 output triode, and the other end is connected with ground wire; The output triode collector electrode of optocoupler U1 is connected with power supply VCC; The normally opened contact of relay K 1 is output contact, for controlling electromagnetically operated valve 30.
Described automatically controlled rifle portion 1 is arranged on the inside of automatically controlled rifle 10.
Described electric cabinet portion 2 is arranged on the inside of electric cabinet 20.
Described fuse F1 adopts Self-resetting fuse.
The operation principle of the breaking line preventive protective device of the jetting machine that the utility model provides:
When automatically controlled rifle 10 work, tongue tube GH1 is closed, 1 one-tenth state in parallel of resistance R of the resistance R 2 in automatically controlled rifle portion 1 and electric cabinet portion 2 now, and its resistance can decline and reach the conduction value of optocoupler U1, the now output control relay K1 adhesive of optocoupler U1, electromagnetically operated valve 30 actions are pressurizeed to whole system.
When automatically controlled rifle 10 is not worked, tongue tube GH1 disconnects, and because the resistance of the resistance R 1 in electric cabinet portion 2 is excessive, optocoupler U1 can not conducting, causes electromagnetically operated valve 30 akinesias.
When two connecting line short circuits between automatically controlled rifle portion 1 and electric cabinet portion 2, optocoupler U1 is directly connected with power supply VCC, and electric current can raise fast, and when reaching the protection value of fuse F1, fuse F1 disconnects, and cuts off the working power of optocoupler U1, and electromagnetically operated valve 30 is failure to actuate.
Claims (4)
1. a breaking line preventive protective device for jetting machine, is characterized in that: it comprises automatically controlled rifle portion (1) and electric cabinet portion (2), and two parts interconnect by two connecting lines; Wherein: automatically controlled rifle portion (1) is in series and is formed by resistor R2 and tongue tube GH1, the two ends after its series connection are connected with the two ends of resistor R1 in electric cabinet portion (2) by two connecting lines respectively; Electric cabinet portion (2) comprising: fuse F1, optocoupler U1, resistor R1 and relay K 1; Wherein: one end of fuse F1 is connected with power supply VCC, the other end is connected with the input diode anode of optocoupler U1; One end of resistor R1 is connected with the input diode negative electrode of optocoupler U1, and the other end is connected with ground wire; One end of relay K 1 coil is connected with the emitter of optocoupler U1 output triode, and the other end is connected with ground wire; The output triode collector electrode of optocoupler U1 is connected with power supply VCC; The normally opened contact of relay K 1 is output contact, for controlling electromagnetically operated valve (30).
2. the breaking line preventive protective device of jetting machine according to claim 1, is characterized in that: described automatically controlled rifle portion (1) is arranged on the inside of automatically controlled rifle (10).
3. the breaking line preventive protective device of jetting machine according to claim 1, is characterized in that: described electric cabinet portion (2) is arranged on the inside of control cabinet (20).
4. the breaking line preventive protective device of jetting machine according to claim 1, is characterized in that: described fuse F1 adopts Self-resetting fuse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320733723.3U CN203562751U (en) | 2013-11-19 | 2013-11-19 | Anti-wire-breaking protection device of high-pressure cleaning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320733723.3U CN203562751U (en) | 2013-11-19 | 2013-11-19 | Anti-wire-breaking protection device of high-pressure cleaning machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203562751U true CN203562751U (en) | 2014-04-23 |
Family
ID=50512449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320733723.3U Expired - Fee Related CN203562751U (en) | 2013-11-19 | 2013-11-19 | Anti-wire-breaking protection device of high-pressure cleaning machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203562751U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560480A (en) * | 2013-11-19 | 2014-02-05 | 天津市通洁高压泵制造有限公司 | Line-breaking-prevention protection device of high pressure washer |
-
2013
- 2013-11-19 CN CN201320733723.3U patent/CN203562751U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560480A (en) * | 2013-11-19 | 2014-02-05 | 天津市通洁高压泵制造有限公司 | Line-breaking-prevention protection device of high pressure washer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Qi Yongjian Inventor before: Li Xiangming Inventor before: Luo Yuchuan |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LI XIANGMING LUO YUCHUAN TO: QI YONGJIAN |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140423 Termination date: 20151119 |