CN211217858U - Carbon dioxide high pressure cleaning gun - Google Patents
Carbon dioxide high pressure cleaning gun Download PDFInfo
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- CN211217858U CN211217858U CN201922223294.5U CN201922223294U CN211217858U CN 211217858 U CN211217858 U CN 211217858U CN 201922223294 U CN201922223294 U CN 201922223294U CN 211217858 U CN211217858 U CN 211217858U
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Abstract
The utility model discloses a carbon dioxide high-pressure cleaning gun, which comprises a shell, wherein a handle and a gun barrel are respectively arranged on the shell, the end part of the handle is respectively fixed with an electric connection terminal and an air connection pipe head, and the electric connection terminal and the air connection pipe head are respectively arranged on one end of a lead and an air inlet pipe; the wire supplies power to the electrostatic discharge device, and the other end of the air inlet pipe is communicated with an air inlet joint of the electrostatic discharge device in a sealing way; the electrostatic discharge device is used for charging static electricity to the pressurized air and is fixed in the shell; an exhaust joint of the electrostatic discharge device is communicated with one end of an air blow pipe in a sealing way, and the other end of the air blow pipe is communicated with an inner hole of the spray head; the air blowing pipe is also communicated with one end of the pressurizing pipe, and the other end of the pressurizing pipe is communicated with the pressurized liquid carbon dioxide; the switch valve is installed in series on the air inlet pipe and used for controlling on-off and flow of the air inlet pipe, a switch rod of the switch valve is hinged to one end of the trigger through a second pin shaft, the middle portion of the trigger is hinged to the shell through a first pin shaft, and the other end of the trigger penetrates out of the shell.
Description
Technical Field
The utility model relates to a high pressure blasts the technique, especially relates to a carbon dioxide high pressure cleaning rifle.
Background
In the processes of cleaning, processing, mounting, dismounting, renewing and the like of precise parts such as electronic components (capacitors, resistors, inductors and the like), a high-pressure air gun is inevitably required to blow and blow off small particle impurities such as particles, dust and the like on the surface of the precise parts so as to achieve the effect of blowing and blowing off, and the impurities can be prevented from influencing the quality of products.
At present, the technology is relatively mature, and as the cleaning method and the cleaning equipment disclosed in the Chinese patent application with the publication number of CN1358580A, the cleaning gun is mainly used for cleaning by flushing solid carbon dioxide particles with the temperature of-78 ℃ out of the cleaning gun under high pressure by compressed air, the solid carbon dioxide particles can polish, sweep and finally gasify impurities, thereby obtaining better purging effect. However, such a device has the following problems:
1. the solid carbon dioxide particles at-78 ℃ have very high requirements on storage equipment, devices through pipelines and the like due to low temperature, so that the use cost is greatly increased, and the spray head is easy to freeze or block.
2. Although the design of electrostatic discharge to the air is provided, solid particles are easily adsorbed on the discharge needle (the discharge column of the present case) during the use process, thereby seriously affecting the use effect. The problem is solved only by replacing the discharge needle, and the discharge needle is relatively troublesome to replace and relatively high in maintenance cost.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned defects in the prior art, the technical problem to be solved in the utility model is to provide a carbon dioxide high pressure cleaning gun, its liquid pressurization carbon dioxide that adopts and is close normal atmospheric temperature to prevent that the shower nozzle from freezing or plugging up.
In order to achieve the purpose, the utility model provides a carbon dioxide high-pressure cleaning gun, which comprises a shell, wherein a handle and a gun barrel are respectively arranged on the shell, the end part of the handle is respectively fixed with an electric connection terminal and an air connection pipe head, and the electric connection terminal and the air connection pipe head are respectively arranged on one end of a lead and an air inlet pipe;
the wire and the air inlet pipe are respectively arranged in the shell, the wire supplies power to the electrostatic discharge device, and the other end of the air inlet pipe is hermetically communicated with an air inlet joint of the electrostatic discharge device; the electrostatic discharge device is used for charging the pressurized air with static electricity and is fixed in the shell; an exhaust joint of the electrostatic discharge device is communicated with one end of an air blow pipe in a sealing way, and the other end of the air blow pipe is communicated with an inner hole of the spray head; the air blowing pipe is also communicated with one end of a pressurizing pipe, and the other end of the pressurizing pipe is communicated with pressurized liquid carbon dioxide;
the switch valve is installed in series on the air inlet pipe and used for controlling on-off and flow of the air inlet pipe, a switch rod of the switch valve is hinged to one end of the trigger through a second pin shaft, the middle portion of the trigger is hinged to the shell through a first pin shaft, and the other end of the trigger penetrates out of the shell.
Preferably, a mixer is further connected in series to a portion of the air blowing pipe between the portion of the air blowing pipe communicated with the pressurizing pipe and the nozzle, a spiral channel is formed in the mixer, and air flow mixed with carbon dioxide and compressed air enters the spiral channel to advance in a spiral mode.
Preferably, the air inlet pipe and the pressurization pipe are respectively provided with a first one-way air valve and a second one-way air valve in series, the flow direction of the first one-way air valve flows to the electrostatic discharge device, and the flow direction of the second one-way air valve flows to the air blowing pipe.
Preferably, a second throttle valve is further mounted on the pressurizing pipe and used for controlling the on-off and flow of the pressurizing pipe.
Preferably, the air inlet pipe is also communicated with a cleaning pipe of the electrostatic discharge device through a bronchus; and a first throttling valve is installed on the branch gas pipe in series and is used for controlling the on-off and flow of the branch gas pipe.
Preferably, the first throttle valve is an electromagnetic valve, and a control end of the first throttle valve is in communication connection with a signal end of the MCU.
Preferably, the switch valve comprises a valve casing, a hollow valve cavity is arranged in the valve casing, a valve core is arranged in the valve cavity in a sealing and sliding manner, a communicating notch is formed in the valve core, the valve cavity is respectively positioned on two sides of the valve core and is respectively communicated with one end of a first joint and one end of a second joint, and the first joint and the second joint are respectively connected in series with the air inlet pipe;
one end of the valve core is fixedly assembled with one end of the switch rod, and the other end of the switch rod penetrates through the valve shell and is hinged with the trigger through a second pin shaft; the switch rod is sleeved with a reset pressure spring on the valve core and the inner wall of the valve cavity.
Preferably, the electrostatic discharge device comprises an insulating shell made of insulating materials, an airflow cavity and a driving cavity are arranged inside the insulating shell, and the airflow cavity is respectively communicated with the air inlet joint and the air outlet joint; the impeller is arranged in the driving cavity, the impeller is arranged and fixed at one end of the reciprocating lead screw, and the other end of the reciprocating lead screw penetrates through the sweeping plate and the airflow cavity and then is assembled with the insulating shell in a circumferential rotating manner;
the driving cavity is communicated with the cleaning pipe, and the air flow sprayed out of the cleaning pipe drives the impeller to rotate circumferentially; the driving cavity is also communicated with the exhaust cavity through a connecting hole; the reciprocating screw rod is provided with two thread grooves which are opposite in rotation direction and communicated with each other at the bottoms, the inner side of the part of the cleaning plate assembled with the reciprocating screw rod is provided with a driving bulge, and the driving bulge and the thread grooves are assembled in a sliding manner;
at least two discharge needles are arranged in the airflow cavity, a large end and an insulating clamping groove are arranged at one end of each discharge needle, the large end is clamped, assembled and fixed with the large end fixing groove arranged on the insulating shell, an insulating sleeve is arranged in the insulating clamping groove, and the insulating sleeve is made of insulating materials;
the discharge needle and the big end are made of conductive materials, the big end is in conductive connection with a lead, and the lead is in conductive connection with the positive electrode of an external high-voltage power supply.
Preferably, the sweeping plate is provided with at least two sweeping mounting holes and a communicating air hole, the two sweeping mounting holes are communicated through the communicating air hole, one of the sweeping mounting holes is communicated with one end of the air blowing pipe head for air guide, the other end of the air blowing pipe head is communicated with one end of the air distributing joint through a spring hose, the other end of the air distributing joint is communicated with the inner air guide of the cleaning pipe, the air distributing joint is provided with a sealing cylinder, the sealing cylinder is made of soft elastic materials and is arranged in the joint blind hole, the sealing cylinder is used for sealing and assembling the air distributing joint and the joint blind hole, and the joint blind hole is arranged on the insulating shell;
the cleaning installation hole is internally provided with a cleaning barrel body, the cleaning barrel body is provided with an air passing groove, the air passing groove is communicated with a communicating air hole, the cleaning barrel body is also provided with an air distribution groove, the air distribution groove is provided with a penetrating air distribution hole, the inner side of the cleaning barrel body is fixedly provided with a plurality of bristles, and the bristles can be tightly attached to the outer wall of the insulating sleeve or the discharge needle.
Preferably, the cleaning cylinder body is axially provided with a sealing ring respectively at the upper part and two sides of the air passing groove, and the sealing ring is used for sealing and assembling the outer wall of the cleaning cylinder body and the inner wall of the cleaning installation hole; the screw penetrates through the cleaning plate and is assembled and fixed with the cleaning cylinder body through screw thread screwing;
a trigger plate is further fixed on the sweeping plate, a trigger end of the microswitch is opposite to the trigger plate, and the trigger plate can trigger the microswitch; and the signal end of the microswitch is in communication connection with the signal end of the MCU.
The utility model has the advantages that:
1. the utility model discloses an electrostatic discharge device realizes carrying out the static increase to the air current and handles, carries out electrostatic absorption to the dust, reaches better the effect of purging. In addition, the discharging column can be cleaned through the rollers and the bristles, so that particles adsorbed on the discharging column are prevented from affecting the effect of the discharging column.
2. The utility model discloses a liquid carbon dioxide pressurizes, and its temperature is about 15 ℃, is close the normal atmospheric temperature, consequently is difficult to damage equipment, blocks up the nozzle. The static electricity releasing device is used for charging static electricity to the pressurized air so as to charge the static electricity to the sprayed carbon dioxide, and the pressurized air and the carbon dioxide are mixed and then adsorb the static electricity charged dust, so that a better cleaning effect is achieved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the switching valve of the present invention.
Fig. 3 is a schematic structural diagram of the electrostatic discharge device of the present invention.
Fig. 4 is a sectional view a-a in fig. 3.
Fig. 5 is a sectional view B-B in fig. 3.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1 to 5, the carbon dioxide high pressure cleaning gun comprises a housing 100, wherein a handle 110 and a gun barrel 120 are respectively arranged on the housing 100, an electric connection terminal 233 and an air connection pipe head 212 are respectively fixed at the end of the handle 110, and the electric connection terminal 233 and the air connection pipe head 212 are respectively arranged at one end of a lead 230 and an air inlet pipe 210. When the air inlet pipe 210 is used, an external power supply is in conductive connection with the lead 230 through the electric connection terminal 233, and external compressed air is connected into the air inlet pipe 210 through the air throttle 212.
The lead 230 and the air inlet pipe 210 are respectively installed in the housing 100, the lead 230 supplies power to the electrostatic discharge device 400, and the other end of the air inlet pipe 210 is in sealed communication with an air inlet joint 421 of the electrostatic discharge device 400; the electrostatic discharge device 400 is used for adding static electricity to the pressurized air, so that the sprayed carbon dioxide is charged with static electricity and neutralized with the static-charged dust to achieve a better cleaning effect, and the electrostatic discharge device 400 is fixed inside the shell 100.
The exhaust joint 422 of the electrostatic discharge device 400 is hermetically communicated with one end of the air blowing pipe 220, and the other end of the air blowing pipe 220 is communicated with the inner hole of the nozzle 150, so that the air flow passing through the electrostatic discharge device 400 can be sprayed out together with liquid carbon dioxide through the inner hole of the nozzle 150, the pressure of the sprayed liquid carbon dioxide is released to form snowflake-shaped carbon dioxide, and the external device is purged and blown.
The blowing pipe 220 is also communicated with one end of the pressurizing pipe 221, and the other end of the pressurizing pipe 221 is communicated with pressurized liquid carbon dioxide, so that the carbon dioxide is introduced into the blowing pipe 220 to increase the air pressure and the air flow in the blowing pipe 220, thereby increasing the purging effect. The temperature of the pressurized liquid carbon dioxide is about 15 ℃, which is basically close to the normal temperature, thereby not causing blockage to the air blowing pipe 220 and the spray nozzle 150, having no special requirement on the pipeline which the pressurized liquid carbon dioxide enters, and adopting a common high-pressure pipe.
Preferably, a mixer 350 is further connected in series to a portion of the blowing pipe 220 between the portion communicating with the pressurizing pipe 221 and the nozzle 150, a spiral channel is provided in the mixer 350, and an air flow mixed with carbon dioxide and compressed air enters the spiral channel to advance spirally, so that the carbon dioxide and the compressed air are mixed uniformly. After the liquid carbon dioxide and the compressed air are sprayed out from the outlet, the pressure is reduced to form the snow-like carbon dioxide with static electricity, so that the air flow is pressurized to increase the purging effect.
Preferably, the air inlet pipe 210 and the pressurization pipe 221 are respectively provided with a first one-way air valve 331 and a second one-way air valve 332 in series, the flow direction of the first one-way air valve 331 is to flow to the electrostatic discharge device 400, and the flow direction of the second one-way air valve 332 is to flow to the air blowing pipe 220.
Preferably, a second throttle valve 340 is further installed on the pressurization pipe 221, and the second throttle valve 340 is used for controlling the on-off and the flow rate of the pressurization pipe 221.
The air inlet pipe 210 is provided with a switch valve 310 in series, the switch valve 310 is used for controlling the on-off and flow of the air inlet pipe 210, the switch valve 310 can be an existing pull-type air valve, a switch rod 311 of the switch valve is hinged with one end of the trigger 130 through a second pin shaft 142, the middle part of the trigger 130 is hinged with the shell 100 through a first pin shaft 141, and the other end of the trigger 130 penetrates out of the shell 100. In use, the flow rate (the size of the communication section) of the switch valve is opened or regulated by rotating the trigger 130 toward the handle 110, so that the trigger rotates through the first pin to pull the switch rod.
The air inlet pipe 210 is also communicated with a cleaning pipe 450 of the electrostatic discharge device 400 through a bronchus 211; the first throttle valve 320 is installed on the branch pipe 211 in series, and the first throttle valve 320 is used for controlling the on-off and flow of the branch pipe 211. In this embodiment, the first throttle valve 320 is a solenoid valve, and the opening and closing of the solenoid valve is controlled by the MCU of the main board 360. Specifically, the control end of the first throttle valve 320 is in communication connection with the signal end of the MCU, so that the MCU can output a control signal to control the opening and closing of the first throttle valve 320 and the flow rate.
Referring to fig. 2, it is a schematic structural diagram of the on-off valve in this embodiment, and of course, in this embodiment, the on-off valve and the second throttle valve have the same structure.
The switch valve comprises a valve casing 312, a hollow valve cavity 3121 is arranged in the valve casing 312, a valve core 313 is arranged in the valve cavity 3121 in a sealing and sliding way, a communicating notch 3131 is arranged on the valve core 313, the valve cavity 3121 is respectively positioned at two sides of the valve core 313 and is respectively communicated with one end of a first joint 3141 and one end of a second joint 3142, and the first joint 3141 and the second joint 3142 are respectively connected in series with the air inlet pipe 210;
one end of the valve core 313 is fixedly assembled with one end of the switch rod 311, and the other end of the switch rod 311 penetrates through the valve housing 312 and is hinged with the trigger 130 through the second pin 142. The switch rod 311 is sleeved with a reset pressure spring 315 on the valve core 313 and the inner wall of the valve cavity, and the reset pressure spring 315 is used for generating thrust sliding leftwards on the valve core.
In the initial state, the valve core seals the communication part between the first connector 3141 and the second connector 3142 and the valve cavity. When the switch valve needs to be opened, the trigger is broken, so that the switch rod 311 moves rightwards against the elastic force of the return compression spring until the communication notch 3131 communicates the first connector 3141 with the second connector 3142.
Referring to fig. 3 to 5, the electrostatic discharge apparatus 400 includes an insulating housing 410 made of an insulating material, an airflow chamber 411 and a driving chamber 412 are disposed inside the insulating housing 410, and the airflow chamber 411 is respectively communicated with an air inlet joint 421 and an air outlet joint 422; an impeller 460 is installed in the driving cavity 412, the impeller 460 is installed and fixed at one end of a reciprocating lead screw 430, and the other end of the reciprocating lead screw 430 penetrates through the sweeping plate 440 and the airflow cavity 411 and then is assembled with the insulating shell 410 in a circumferential rotation manner;
the driving cavity 412 is communicated with the cleaning pipe 450, and the impeller is driven to rotate circumferentially by airflow sprayed from the cleaning pipe 450; the driving chamber 412 is also communicated with the exhaust chamber 411 through a connection hole 413; the reciprocating screw 430 is provided with two screw grooves 431 with opposite rotation directions (the existing reciprocating screw is directly adopted), the inner side of the part of the cleaning plate 440 assembled with the reciprocating screw 430 is provided with a driving projection 441, and the driving projection 441 is assembled with the screw grooves 431 in a sliding way. In use, the reciprocating screw 430 rotates circumferentially, so that the sweeping plate 440 is driven to move back and forth in the axial direction thereof by the driving protrusion 441;
at least two discharge needles 510 are installed in the airflow cavity 411, a large end 512 and an insulating slot 511 are arranged at one end of each discharge needle 510, the large end 512 is fixedly clamped with a large end fixing slot 415 arranged on the insulating shell 410, an insulating sleeve 640 is installed in the insulating slot 511, and the insulating sleeve 640 is made of insulating materials;
the discharge needle 510 and the large end 512 are made of conductive materials, the large end is in conductive connection with the lead 230, the lead 230 is in conductive connection with the positive electrode of an external high-voltage power supply, so that the discharge needle 510 releases positive static ions, the positive static ions are neutralized with negative static ions which can be generated in the cleaning process, and static discharge is removed.
The cleaning plate 440 is provided with at least two cleaning mounting holes 443 and a communicating air hole 442, the two cleaning mounting holes 443 are communicated with each other through the communicating air hole 442, one cleaning mounting hole 443 is communicated with one end of the air blowing pipe head 621 for air guiding, the other end of the air blowing pipe head 621 is communicated with one end of the air distribution joint 610 through the spring hose 620, the other end of the air distribution joint 610 is communicated with the inside of the cleaning pipe 450 for air guiding, the air distribution joint 610 is provided with a sealing cylinder 611, the sealing cylinder 611 is made of soft elastic material, the sealing cylinder 611 is installed in the joint blind hole 414, the sealing cylinder 611 is used for sealing and assembling the air distribution joint 610 and the joint blind hole 414, and the joint blind hole 414 is arranged on the insulating shell 410;
the cleaning mounting hole 443 is internally provided with a cleaning cylinder 720, the cleaning cylinder 720 is provided with an air passing groove 721, sealing rings 710 are respectively arranged on the axial direction of the cleaning cylinder 720 and two sides of the air passing groove 721, and the sealing rings 710 are used for sealing and assembling the outer wall of the cleaning cylinder 720 and the inner wall of the cleaning mounting hole 443; the air passing groove 721 is communicated with the communicating air hole 442, the cleaning cylinder 720 is further provided with an air distribution groove 722, the air distribution groove 722 is provided with a penetrating air distribution hole 723, a plurality of bristles 730 are fixed on the inner side of the cleaning cylinder 720, and the bristles 730 can be tightly attached to the outer wall of the insulating sleeve 640 or the discharge needle 510.
The screw 630 is screwed with the cleaning cylinder 720 after passing through the cleaning plate 440, so that the cleaning cylinder 720 is assembled and fixed with the cleaning mounting hole 443.
Fig. 3 shows the sweeping board 440 in an initial state, in which the bristles 730 are in close contact with the outer wall of the insulating sheath 640. When solid particles or other impurities are adsorbed on the discharge needle, the first throttle valve 320 is opened, compressed air enters the cleaning pipe 450, is blown out of the cleaning pipe 450 to drive the impeller to rotate, and is output to the airflow cavity 411 from the connecting hole 413; when the impeller rotates, the reciprocating screw 430 is driven to rotate circumferentially, so that the sweeping plate is driven to move in a reciprocating manner in the axial direction, the bristles are driven to scrub in a reciprocating manner in the axial direction of the discharge needle, and impurities on the discharge needle are brushed down.
Meanwhile, the compressed air enters the air passing groove 721 from the air distributing joint 610, the spring hose 620 and the air blowing pipe head 621, and then is blown out through the air distributing groove 722 and the air distributing hole 723 to blow impurities away from the discharge needle 510, so that a good cleaning effect is obtained.
Preferably, a trigger plate 450 is further fixed on the cleaning plate 440, a trigger end of the micro switch 520 faces the trigger plate 450, and the trigger plate 450 can trigger the micro switch 520; the signal end of the microswitch 520 is in communication connection with the signal end of the MCU, so that the MCU can obtain the signal output by the microswitch.
In the initial state, the trigger plate triggers the micro switch, and the cleaning plate 440 is determined to be positioned at the top. After the discharge needles are cleaned, a cleaning stopping instruction is input into the MCU through the external button, the MCU receives the instruction and waits until the micro switch outputs a triggered electric signal, then the first throttle valve 320 is controlled to be closed, and at the moment, the cleaning plate is reset. The micro switch is fixed on the inner wall of the airflow chamber 411.
In this embodiment, a button for inputting a control signal to the MCU is installed on the housing, and the button at least includes a button for opening and closing the first throttle valve, so that the opening and closing of the first throttle valve and the resetting of the cleaning plate are realized by the button.
The details of the present invention are well known to those skilled in the art.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (10)
1. A carbon dioxide high-pressure cleaning gun comprises a shell, wherein a handle and a gun barrel are respectively arranged on the shell, an electric connection terminal and an air connection pipe head are respectively fixed at the end part of the handle, and the electric connection terminal and the air connection pipe head are respectively arranged at one end of a lead and one end of an air inlet pipe; the method is characterized in that:
the wire and the air inlet pipe are respectively arranged in the shell, the wire supplies power to the electrostatic discharge device, and the other end of the air inlet pipe is hermetically communicated with an air inlet joint of the electrostatic discharge device; the electrostatic discharge device is used for charging the pressurized air with static electricity and is fixed in the shell; an exhaust joint of the electrostatic discharge device is communicated with one end of an air blow pipe in a sealing way, and the other end of the air blow pipe is communicated with an inner hole of the spray head; the air blowing pipe is also communicated with one end of a pressurizing pipe, and the other end of the pressurizing pipe is communicated with pressurized liquid carbon dioxide;
the switch valve is installed in series on the air inlet pipe and used for controlling on-off and flow of the air inlet pipe, a switch rod of the switch valve is hinged to one end of the trigger through a second pin shaft, the middle portion of the trigger is hinged to the shell through a first pin shaft, and the other end of the trigger penetrates out of the shell.
2. The carbon dioxide high pressure cleaning gun according to claim 1, wherein: the part of the air blowing pipe between the part communicated with the pressurizing pipe and the spray head is also connected in series with a mixer, a spiral channel is arranged in the mixer, and air flow mixed with carbon dioxide and compressed air enters the spiral channel to advance spirally.
3. The carbon dioxide high pressure cleaning gun according to claim 1, wherein: the air inlet pipe and the pressure pipe are respectively provided with a first one-way air valve and a second one-way air valve in series, the flow direction of the first one-way air valve flows to the electrostatic discharge device, and the flow direction of the second one-way air valve flows to the air blowing pipe.
4. The carbon dioxide high pressure cleaning gun according to claim 1 or 3, characterized in that: and the pressurizing pipe is also provided with a second throttling valve, and the second throttling valve is used for controlling the on-off and flow of the pressurizing pipe.
5. The carbon dioxide high pressure cleaning gun according to claim 1, wherein: the air inlet pipe is also communicated with a cleaning pipe of the electrostatic discharge device through a bronchus; and a first throttling valve is installed on the branch gas pipe in series and is used for controlling the on-off and flow of the branch gas pipe.
6. The carbon dioxide high pressure cleaning gun according to claim 5, wherein: the first throttle valve is an electromagnetic valve, and the control end of the first throttle valve is in communication connection with the signal end of the MCU.
7. The carbon dioxide high pressure cleaning gun according to claim 1, wherein: the switch valve comprises a valve casing, a hollow valve cavity is arranged in the valve casing, a valve core is arranged in the valve cavity in a sealing and sliding mode, a communicating notch is formed in the valve core, the valve cavity is respectively positioned on two sides of the valve core and is respectively communicated with one end of a first connector and one end of a second connector, and the first connector and the second connector are respectively connected in series with an air inlet pipe;
one end of the valve core is fixedly assembled with one end of the switch rod, and the other end of the switch rod penetrates through the valve shell and is hinged with the trigger through a second pin shaft; the switch rod is sleeved with a reset pressure spring on the valve core and the inner wall of the valve cavity.
8. The carbon dioxide high pressure cleaning gun according to claim 5 or 6, characterized in that: the electrostatic discharge device comprises an insulating shell made of insulating materials, an airflow cavity and a driving cavity are arranged in the insulating shell, and the airflow cavity is respectively communicated with an air inlet joint and an air exhaust joint; the impeller is arranged in the driving cavity, the impeller is arranged and fixed at one end of the reciprocating lead screw, and the other end of the reciprocating lead screw penetrates through the sweeping plate and the airflow cavity and then is assembled with the insulating shell in a circumferential rotating manner;
the driving cavity is communicated with the cleaning pipe, and the air flow sprayed out of the cleaning pipe drives the impeller to rotate circumferentially; the driving cavity is also communicated with the exhaust cavity through a connecting hole; the reciprocating screw rod is provided with two thread grooves which are opposite in rotation direction and communicated with each other at the bottoms, the inner side of the part of the cleaning plate assembled with the reciprocating screw rod is provided with a driving bulge, and the driving bulge and the thread grooves are assembled in a sliding manner;
at least two discharge needles are arranged in the airflow cavity, a large end and an insulating clamping groove are arranged at one end of each discharge needle, the large end is clamped, assembled and fixed with the large end fixing groove arranged on the insulating shell, an insulating sleeve is arranged in the insulating clamping groove, and the insulating sleeve is made of insulating materials;
the discharge needle and the big end are made of conductive materials, the big end is in conductive connection with a lead, and the lead is in conductive connection with the positive electrode of an external high-voltage power supply.
9. The carbon dioxide high pressure cleaning gun according to claim 8, wherein: the cleaning plate is provided with at least two cleaning mounting holes and a communicating air hole, the two cleaning mounting holes are communicated through the communicating air hole, one cleaning mounting hole is communicated with one end of an air blowing pipe head for air guide, the other end of the air blowing pipe head is communicated with one end of a gas distributing joint through a spring hose, the other end of the gas distributing joint is communicated with the air guide inside the cleaning pipe, a sealing cylinder is arranged on the gas distributing joint and is made of soft elastic materials, the sealing cylinder is arranged in a joint blind hole, the sealing cylinder is used for sealing and assembling the gas distributing joint and the joint blind hole, and the joint blind hole is arranged on the insulating shell;
the cleaning installation hole is internally provided with a cleaning barrel body, the cleaning barrel body is provided with an air passing groove, the air passing groove is communicated with a communicating air hole, the cleaning barrel body is also provided with an air distribution groove, the air distribution groove is provided with a penetrating air distribution hole, the inner side of the cleaning barrel body is fixedly provided with a plurality of bristles, and the bristles can be tightly attached to the outer wall of the insulating sleeve or the discharge needle.
10. The carbon dioxide high pressure cleaning gun according to claim 9, wherein: sealing rings are respectively arranged on the axial direction of the cleaning cylinder body and two sides of the air passing groove and are used for sealing and assembling the outer wall of the cleaning cylinder body and the inner wall of the cleaning mounting hole; the screw penetrates through the cleaning plate and is assembled and fixed with the cleaning cylinder body through screw thread screwing;
a trigger plate is further fixed on the sweeping plate, a trigger end of the microswitch is opposite to the trigger plate, and the trigger plate can trigger the microswitch; and the signal end of the microswitch is in communication connection with the signal end of the MCU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922223294.5U CN211217858U (en) | 2019-12-12 | 2019-12-12 | Carbon dioxide high pressure cleaning gun |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922223294.5U CN211217858U (en) | 2019-12-12 | 2019-12-12 | Carbon dioxide high pressure cleaning gun |
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| CN211217858U true CN211217858U (en) | 2020-08-11 |
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| CN201922223294.5U Active CN211217858U (en) | 2019-12-12 | 2019-12-12 | Carbon dioxide high pressure cleaning gun |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113877929A (en) * | 2021-08-26 | 2022-01-04 | 江苏理工学院 | Waste circuit board recovery device based on electrostatic separation |
| CN114130557A (en) * | 2021-11-30 | 2022-03-04 | 中冶京诚工程技术有限公司 | Electrostatic powder spray gun |
-
2019
- 2019-12-12 CN CN201922223294.5U patent/CN211217858U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113877929A (en) * | 2021-08-26 | 2022-01-04 | 江苏理工学院 | Waste circuit board recovery device based on electrostatic separation |
| CN114130557A (en) * | 2021-11-30 | 2022-03-04 | 中冶京诚工程技术有限公司 | Electrostatic powder spray gun |
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