CN204485135U - Quick dismantling equipment - Google Patents
Quick dismantling equipment Download PDFInfo
- Publication number
- CN204485135U CN204485135U CN201520034628.3U CN201520034628U CN204485135U CN 204485135 U CN204485135 U CN 204485135U CN 201520034628 U CN201520034628 U CN 201520034628U CN 204485135 U CN204485135 U CN 204485135U
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- Prior art keywords
- circuit
- orcible entry
- rifle head
- input
- quick dismantling
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Abstract
The utility model discloses a kind of quick dismantling equipment and low frequency starting the arc method thereof, this quick dismantling equipment comprises the control circuit that orcible entry rifle head is connected with orcible entry rifle head; Orcible entry rifle head is connected with air compressor by high-pressure air pipe; Industrial frequency AC electric rectification is direct current by input rectification circuit, after filtering, be transformed into high voltagehigh frequency alternating current by IGBT inverter circuit, through output rectification circuit is rectified into direct current supply orcible entry rifle after converting low-voltage high-frequency to by transformer.
Description
Technical field
The utility model belongs to fire-fighting and rescue technical field, is specifically related to a kind of quick dismantling equipment.
Background technology
At present orcible entry equipment on the market have manually, the type such as hydraulic pressure, motor-driven and chemical cleavage; Adopt hydraulic pressure to provide power to treat the equipment of tearing open for hydraulic disengaging equipment to dismantle, dismounting slowly; Hydraulic tongs due to hydraulic disengaging equipment has certain width, for some exist gap less treat forcible entry device be just difficult to realize orcible entry.For chemical cleavage orcible entry equipment, all adopt high-frequency arc strike, but output high frequency needs very high high pressure to carry out striking, the damage of high pressure to human body and equipment is very large; When tear down rifle head draw some high-altitudes of longer cable pair or far away tear down until forcible entry device time, because the decay of high frequency is comparatively large, cable is longer, and striking is more difficult.
Utility model content
For above-mentioned deficiency of the prior art, the utility model provides a kind of quick dismantling equipment utilizing low pressure low frequency electricity to carry out the starting the arc.
In order to reach foregoing invention object, the technical solution adopted in the utility model is:
On the one hand, provide a kind of quick dismantling equipment, it control circuit comprising orcible entry rifle head and be connected with orcible entry rifle head; Orcible entry rifle head is connected with air compressor by high-pressure air pipe; Control circuit comprises for industrial frequency AC electric rectification is become galvanic input rectification circuit, for the DC inverter of input being become the IGBT inverter circuit of high pressure medium frequency electric, direct current is become by the low pressure low frequency electric rectification of input to supply the output rectification circuit of orcible entry rifle head for the transformer high pressure medium frequency electric of input being converted to low pressure low frequency electricity with being used for.
The beneficial effects of the utility model are: industrial frequency AC is converted to low pressure low frequency electricity and flows to orcible entry rifle head by the control circuit of this quick dismantling equipment, and the spark that the electrode of orcible entry rifle head and nozzle short circuit are formed ionizes the gases at high pressure entered and produces the orcible entry that electric arc carries out hardware.
This equipment adopts low pressure low frequency electricity to tear down, and its frequency can not decay along with the lengthening of orcible entry rifle head connection cable, make the more easily starting the arc fast of orcible entry equipment, and the electric arc produced is more stable; Simultaneously due to the employing of this orcible entry equipment is the low frequency starting the arc, and it operationally tears down equipment and external device can not be caused bad, also can not damage operating personnel.
Accompanying drawing explanation
Fig. 1 is the theory diagram of quick dismantling equipment.
Structural representation when Fig. 2 is the orcible entry rifle head short circuit of quick dismantling equipment.
Fig. 3 is the structural representation that the orcible entry rifle head of quick dismantling equipment passes into gases at high pressure.
Detailed description of the invention
Below detailed description of the invention of the present utility model is described; so that those skilled in the art understand the utility model; but should be clear; the utility model is not limited to the scope of detailed description of the invention; to those skilled in the art; as long as various change to limit and in the spirit and scope of the present utility model determined, these changes are apparent in appended claim, the utility model creation that all utilize the utility model to conceive is all at the row of protection.
Shown in figure 1, Fig. 1 shows the theory diagram of quick dismantling equipment, and as shown in Figure 1, the technical scheme of the present embodiment is:
The control circuit comprising orcible entry rifle head and be connected with orcible entry rifle head; Orcible entry rifle head is connected with air compressor by high-pressure air pipe; Control circuit comprises for industrial frequency AC electric rectification is become galvanic input rectification circuit, for the DC inverter of input being become the IGBT inverter circuit of high pressure medium frequency electric, direct current is become by the low pressure low frequency electric rectification of input to supply the output rectification circuit of orcible entry rifle head for the transformer high pressure medium frequency electric of input being converted to low pressure low frequency electricity with being used for.
During work, industrial frequency AC can be converted to low pressure low frequency electricity and flow to orcible entry rifle head by the control circuit of this quick dismantling equipment, and the spark that the electrode 1 of orcible entry rifle head and nozzle 2 short circuit are formed ionizes the gases at high pressure entered and produces the orcible entry that electric arc carries out hardware.
Adopt low frequency starting the arc principle because quick dismantling equipment exports, cutting when the long distance of tool uses still can the normally starting the arc, and therefore, the cable of orcible entry rifle head can lengthen separately as required, such as lengthening 30 meters, 50 meters or 100 meters.
After input rectification circuit in control circuit and output rectification circuit convert alternating current to direct current, in order to ensure the flatness of electric current, between input rectification circuit and IGBT inverter circuit and/or between output rectification circuit and orcible entry rifle head, be provided with filter circuit.
Design due to this control circuit achieves complete machine closed-loop control, when external condition (as not equal in voltage ripple of power network, output cable length) change, the electric arc produced is unstable, carrying out smoothly of impact orcible entry, so in an embodiment of the present utility model, after control circuit also comprises real-time orcible entry electric current for obtaining and setting current vs, to the control module of the constant pulse width signal of IGBT inverter circuit one.
During design, preferred control module comprises input module and the current sampling circuit be connected in turn, feedback circuit, single-chip microcomputer, pulse width modulator and drive circuit; The input of orcible entry rifle head is connected with the input of current sampling circuit; Input module is connected with single-chip microcomputer; The output of drive circuit is connected with IGBT inverter circuit.
Feedback circuit is obtained by the current sampling circuit (preferred current sampling circuit is current sensor) of the input being connected on orcible entry rifle head and tears down electric current in real time, as the negative feedback control signal of feedback circuit, single-chip microcomputer is inputted with after the given conditioning signal set in feedback circuit, the signal that feedback circuit inputs is flowed to pulse width modulator by single-chip microcomputer, pwm signal is supplied to IGBT inverter circuit through drive circuit by pulse width modulator, thus make IGBT inverter circuit obtain a constant pulse width signal, input is made to tear down the current constant of rifle head, make electrode 1 with nozzle 2 thus the electric arc of stable output.
During design, an amplifying circuit can also be set between pulse width modulator and single-chip microcomputer.
After startup control circuit provides low pressure low-frequency current to orcible entry rifle head, electrode 1 due to orcible entry rifle head forms short-circuit loop with nozzle 2 and just can produce spark, for the ease of the quick starting the arc of orcible entry rifle head, (air compressor can start before startup control circuit just to need within the extremely short time, make air compressor, but magnetic valve is in closed condition, and the gases at high pressure produced so just can arrive magnetic valve place) gases at high pressure that produce enter and tear down in rifle head.
In order to ensure the quick starting the arc, this quick dismantling equipment also comprises the magnetic valve on a high-pressure air pipe being arranged in orcible entry rifle head, and magnetic valve is connected with single-chip microcomputer.After such setting, single-chip microcomputer startup control circuit just can open magnetic valve after providing low pressure low-frequency current to orcible entry rifle head within several seconds zero point (about 0.1S), makes gases at high pressure enter orcible entry rifle head.
Traditional orcible entry equipment is arranged in air compressor by magnetic valve, when the cable tearing down rifle head lengthens, gases at high pressure arrive the time delay several seconds again of orcible entry rifle head through air compressor inside, make the starting the arc very slow, can not tear down dangerous matter sources rapidly when emergency relief.
And the magnetic valve that control gases at high pressure pass through is changed to after in orcible entry rifle head by this orcible entry equipment, after starting control circuit, gases at high pressure will arrive orcible entry rifle head at once; When the cable of orcible entry rifle head is lengthened 30 meters, 50 meters or 100 meters, open magnetic valve, between the nozzle that gases at high pressure just can enter rapidly orcible entry rifle head and electrode, thus achieve the remote starting the arc fast.
In an embodiment of the present utility model, quick dismantling equipment also comprises a housing, is arranged in housing after control circuit is integrated, thus makes the compact conformation of quick dismantling equipment, is convenient to the movement of operating personnel.
After quick dismantling equipment uses for a long time, can heat be produced, in order to ensure the rapid diffusion of heat, in an embodiment of the present utility model, housing be provided with cooling blower.
This equipment adopts low pressure low frequency starting the arc principle to tear down, and its frequency can not decay along with the lengthening of orcible entry rifle head connection cable, make the more easily starting the arc fast of orcible entry equipment, and the electric arc produced is more stable; Simultaneously due to the employing of this orcible entry equipment is low tension, and operationally, orcible entry equipment can not cause device damage to external world, also can not damage operating personnel.The orcible entry rifle head of this programme also has the advantages such as volume is little, lightweight, convenient operation human users, long-time use and can not be tired.
In another embodiment of the present utility model, additionally provide a kind of remote starting the arc method fast of low frequency of quick dismantling equipment: it comprises the following steps: start control circuit, and the low pressure low frequency electricity that control circuit exports makes the electrode 1 of orcible entry rifle head form short-circuit loop (as shown in Figure 2) with nozzle 2; After the electrode 1 of orcible entry rifle head forms loop with nozzle 2, open the magnetic valve on the high-pressure air pipe in orcible entry rifle head, make compressed air enter nozzle rapidly; Enter spark ionization that gases at high pressure in nozzle 2 are produced by electrode 1 and nozzle 2 short circuit and form electric arc; Enter gases at high pressure in nozzle 2 simultaneously to electrode 1 one power away from nozzle 2, the gap (as shown in Figure 3) that the electric arc of generation is formed from nozzle 2 and electrode sprays.
Claims (8)
1. a quick dismantling equipment, the control circuit comprising orcible entry rifle head and be connected with described orcible entry rifle head; It is characterized in that: described orcible entry rifle head is connected with air compressor by high-pressure air pipe; Described control circuit comprises for industrial frequency AC electric rectification is become galvanic input rectification circuit, for the DC inverter of input being become the IGBT inverter circuit of high pressure medium frequency electric, direct current is become by the low pressure low frequency electric rectification of input to supply the output rectification circuit of orcible entry rifle head for the transformer high pressure medium frequency electric of input being converted to low pressure low frequency electricity with being used for.
2. quick dismantling equipment according to claim 1, is characterized in that: be provided with filter circuit between described input rectification circuit and described IGBT inverter circuit and/or between described output rectification circuit and described orcible entry rifle head.
3. quick dismantling equipment according to claim 1 and 2, is characterized in that: after described control circuit also comprises real-time orcible entry electric current for obtaining and setting current vs, to the control module of the constant pulse width signal of IGBT inverter circuit one.
4. quick dismantling equipment according to claim 3, is characterized in that: described control module comprises input module and the current sampling circuit be connected in turn, feedback circuit, single-chip microcomputer, pulse width modulator and drive circuit; The input of described orcible entry rifle head is connected with the input of described current sampling circuit; Described input module is connected with described single-chip microcomputer; The output of described drive circuit is connected with described IGBT inverter circuit.
5. the quick dismantling equipment according to claim 1,2 or 4, is characterized in that: also comprise the magnetic valve on a high-pressure air pipe being arranged in described orcible entry rifle head, described magnetic valve is connected with described single-chip microcomputer.
6. quick dismantling equipment according to claim 4, is characterized in that: be provided with an amplifying circuit between described pulse width modulator and described single-chip microcomputer.
7. the quick dismantling equipment according to claim 1,2,4 or 6, is characterized in that: also comprise housing, described control circuit is arranged in described housing.
8. quick dismantling equipment according to claim 7, is characterized in that: described housing is provided with cooling blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520034628.3U CN204485135U (en) | 2015-01-19 | 2015-01-19 | Quick dismantling equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520034628.3U CN204485135U (en) | 2015-01-19 | 2015-01-19 | Quick dismantling equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204485135U true CN204485135U (en) | 2015-07-22 |
Family
ID=53564431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520034628.3U Expired - Fee Related CN204485135U (en) | 2015-01-19 | 2015-01-19 | Quick dismantling equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204485135U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104623826A (en) * | 2015-01-19 | 2015-05-20 | 成都华荣焊接设备有限公司 | Rapid forcible entry equipment and low-frequency arc starting method thereof |
-
2015
- 2015-01-19 CN CN201520034628.3U patent/CN204485135U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104623826A (en) * | 2015-01-19 | 2015-05-20 | 成都华荣焊接设备有限公司 | Rapid forcible entry equipment and low-frequency arc starting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20150722 Termination date: 20220119 |