CN214467827U - Air gun - Google Patents
Air gun Download PDFInfo
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- CN214467827U CN214467827U CN202022758141.3U CN202022758141U CN214467827U CN 214467827 U CN214467827 U CN 214467827U CN 202022758141 U CN202022758141 U CN 202022758141U CN 214467827 U CN214467827 U CN 214467827U
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Abstract
An air gun comprises a gun body, wherein a gun barrel is arranged at the left end of the gun body, a handle is arranged at the lower part of the right end of the gun body, an air inlet joint is arranged at the lower end of the handle, and an inner hole at the left end part of the gun barrel is provided with an inner thread for connecting a conversion joint; be equipped with three way connection in the handle, rifle body upper portion right side is equipped with the manometer, rifle body left side lower part is equipped with instrumentation, the internal tribit three-way valve that is equipped with of rifle, three way connection's first interface and air inlet connection upper port are connected, three way connection's second interface and manometer are connected, three way connection's third interface and three-way valve's first interface connection, three-way valve's second interface and instrumentation are connected, three-way valve's third interface and barrel left side port are connected. The utility model can exhaust impurities such as air in the pipeline and the gun body before charging air to the gas cylinder or the high-voltage switch; the gas state parameters discharged can be detected in real time, and judgment and operation are facilitated; the structure is exquisite, easy operation, and modular design makes it can adapt to numerous operating modes, and is reliable durable.
Description
Technical Field
The utility model belongs to the technical field of sulfur hexafluoride gas inflation, concretely relates to air gun for power system high voltage switch or gas cylinder gas filling.
Background
The sulfur hexafluoride (SF 6) insulation electric equipment in the power system has the advantages of long electric service life, high insulation level, good sealing performance, small operation power and high safety due to good arc extinguishing and insulation characteristics of the sulfur hexafluoride.
SF6 gas is very stable at normal temperature, but when the moisture content is high, decomposition is possible at more than 200 ℃, hydrofluoric acid is a very corrosive and extremely toxic acid in the decomposed product, the harm of the moisture is more important due to chemical reaction caused in the decomposition process of the SF6 gas under the action of the high temperature of an electric arc, and the final product in the chemical reaction is increased along with the increase of the moisture content. In order to limit the amount of toxic substances generated, the moisture content of SF6 gas must be limited. Therefore, when sulfur hexafluoride is charged into such equipment, the content of impurities (moisture and other gases) should be minimized.
When gas with higher purity is filled into a gas cylinder (steel cylinder), in order to exhaust the air in a pipeline, the gas cylinder is usually firstly evacuated for a period of time and then connected with the steel cylinder for gas filling; when toxic and harmful gas is filled into the gas cylinder (steel bottle), the exhausted gas is collected and refilled after the gas concentration at the gas filling port reaches the standard. The high-voltage switch is inflated similarly. At present, no special equipment for the process exists, or the equipment has a complex structure and is inconvenient to use.
SUMMERY OF THE UTILITY MODEL
In order to directly fill into clear up to standard gas for high-voltage switch or steel bottle etc, the utility model provides a but adaptation in multiple high-voltage switch or steel bottle, before aerifing can the evacuation pipeline in the air and can real-time detection gas concentration, pressure isoparametric air gun.
In order to solve the technical problem, the utility model adopts the following technical scheme: an air gun comprises a gun body, wherein a gun barrel is arranged at the left end of the gun body, a handle is arranged at the lower part of the right end of the gun body, an air inlet joint is arranged at the lower end of the handle, and an inner hole at the left end part of the gun barrel is provided with an inner thread for connecting a conversion joint; be equipped with three way connection in the handle, rifle body upper portion right side is equipped with the manometer, rifle body left side lower part is equipped with instrumentation, the internal tribit three-way valve that is equipped with of rifle, three way connection's first interface is connected with the air inlet connection upper end port through first trachea, three way connection's second interface passes through the second trachea and is connected with the manometer, three way connection's third interface passes through the first interface connection of third trachea and three-way valve, three way three-way valve's second interface passes through the fourth trachea and is connected with instrumentation, three way three-way valve's third interface passes through the fifth trachea and is connected with the port of barrel left side.
The rifle body top is equipped with the recess in the top of tribit three-way valve, and the valve rod upper end of tribit three-way valve is equipped with the knob that is located the recess, and the top and the front and back side of recess are all uncovered, and preceding, the rear side of knob protrusion recess respectively in front of, the rear side.
A miniature adjustable pressure reducing valve is arranged on the fourth air pipe.
A check valve is arranged in the right port of the gun barrel, and the outlet of the fifth air pipe is connected with the inlet of the check valve.
The rifle body left side lower part is equipped with female connection, is equipped with the sealing washer in the female connection, and measuring instrument's connector threaded connection is in female connection, and the fourth trachea is connected with female connection last port.
Adopt above-mentioned technical scheme, the internal thread joint that the rifle body left side lower part set up embeds O type sealing washer, connects the screw in back with instrumentation upper portion to can accomplish and connect and seal, and instrumentation can change the angle at will, the observation of being convenient for. If the detecting instrument is not needed, the detecting instrument can be detached, and the gun body can be used independently.
The air inlet joint arranged at the lower end of the grip is used for connecting the joint of the air source pipe, and the internal thread arranged at the left port of the gun barrel can be connected with the conversion joints of various types so as to be suitable for different working conditions. After gas enters from the gas inlet joint at the lower end of the handle, the pressure gauge is used for monitoring the gas pressure in the pipeline, and the pressure value is observed and displayed on the right side of the gun body. The three-position three-way valve can switch the connection state of the two paths of output gas and close all gas paths simultaneously. One path of the air path output by the three-position three-way valve is connected with a one-way valve, and the one-way valve is used for preventing air outside the gun body from entering the gun barrel and ensuring the purity of the air in the gun body; one path of the gas detection device is connected with a miniature adjustable pressure reducing valve, and the gas is output to a detection instrument after being reduced in pressure by the pressure reducing valve so as to detect the gas.
The detection instrument comprises a shell, an upper connector, a display screen, a gas sensor module, a replaceable battery and the like. After gas enters the gas sensor module from the upper connector, the display screen can display parameters such as the concentration of the gas to be detected in real time. The lower part of the detection instrument is provided with a one-way quick-plug exhaust port which can provide a convenient interface for tail gas recovery.
When the adapter is arranged at the left end of the gun barrel and is connected with the gas cylinder or the high-voltage switch, the whole gas filling gun can complete the processes of emptying, detecting, inflating and the like by rotating the knob at the upper part of the gun body, and the gas filling gun is simple to operate and convenient and fast to use.
In summary, before the gas cylinder or the high-voltage switch is inflated, the utility model can exhaust impurities such as air in the pipeline and the gun body; the gas state parameters to be inflated can be detected in real time, so that the inflation time can be conveniently judged; the modularized design enables the device to adapt to a plurality of working conditions, and the device is reliable, durable and exquisite in structure; the appearance of the gun body is beautiful, the gun body accords with the ergonomics, and the operation is comfortable and convenient.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
As shown in fig. 1, the air gun of the present invention comprises a gun body 1, a gun barrel 2 is arranged at the left end of the gun body 1, a handle 3 is arranged at the lower part of the right end of the gun body 1, an air inlet joint 4 is arranged at the lower end of the handle 3, and an inner screw for connecting a crossover joint is arranged in an inner hole at the left end of the gun barrel 2; be equipped with three way connection 5 in the handle 3, 1 upper portion right side of the rifle body is equipped with manometer 6, 1 left side lower part of the rifle body is equipped with detecting instrument, be equipped with tribit three-way valve 7 in the rifle body 1, three way connection 5's first interface is connected with 4 upper ports of air inlet connection through first trachea 8, three way connection 5's second interface passes through second trachea 9 and is connected with manometer 6, three way connection 5's third interface passes through third trachea 10 and three-way valve 7's first interface connection, three-way valve 7's second interface passes through fourth trachea 11 and is connected with detecting instrument, three-way valve 7's third interface passes through fifth trachea 12 and is connected with 2 left ports of barrel.
The top of the gun body 1 is provided with a groove 13 above the three-position three-way valve 7, the upper end of the valve rod of the three-position three-way valve 7 is provided with a knob 14 positioned in the groove 13, the top and the front and back sides of the groove 13 are both open, and the front and back sides of the knob 14 respectively protrude out of the front and back sides of the groove 13.
A miniature adjustable pressure reducing valve 15 is arranged on the fourth air pipe 11.
A check valve 16 is arranged in the right port of the gun barrel 2, and the outlet of the fifth air pipe 12 is connected with the inlet of the check valve 16.
The lower part of the left side of the gun body 1 is provided with an internal thread joint 17, a sealing ring 18 is arranged in the internal thread joint 17, a connector of the detection instrument is connected in the internal thread joint 17 in a threaded mode, and a fourth air pipe 11 is connected with the upper end opening of the internal thread joint 17.
The detection instrument comprises a shell 19, an upper connector 20, a display screen 21, a gas sensor module, a replaceable battery and the like. Each module in the detection instrument is the prior art, and the gas sensor module is different in detection parameter and gas sensor module when the inflation component is different, and specific construction and related detection principle are not repeated. After the gas enters the gas sensor module from the upper connector 20, the display screen 21 can display the parameters such as the concentration of the measured gas in real time. The lower part of the detection instrument is provided with a one-way quick plug exhaust port 22 which can provide a convenient interface for tail gas recovery.
The utility model discloses when the work uses, be connected to the air inlet connector 4 of handle 3 with the air supply trunk line on (the air gun can be always being connected to the trunk line), connect adapter on the internal thread of 2 left ends of barrel, connect gas cylinder or high-pressure switch inflation inlet, with instrumentation screw in female adapter 17, with the one-way exhaust port 22 departments of inserting soon of the pipe connection to instrumentation of tail gas treatment, open instrumentation, with knob 14 by "close" soon to "evacuation", third trachea 10 and fourth trachea 11 intercommunication, observe instrumentation's demonstration numerical value. The pressure gauge 6 can be observed from the rear part of the gun body 1, so that the pressure value of the main pipeline can be obtained. After the display numerical value of the instrument to be detected meets the requirement, the knob 14 is screwed, the position of the knob 14 is adjusted to be 'inflated', the third air pipe 10 is communicated with the fifth air pipe 12, and then the air bottle or the high-pressure switch can be inflated. After the inflation is finished, the knob 14 can be screwed to turn the position to off, and all the three-position three-way valves 7 are closed. At the moment, the connection with the gas cylinder or the gas charging port of the high-pressure switch is disconnected, and the gas charging is finished.
The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any form, and all of the technical matters of the present invention belong to the protection scope of the present invention to any simple modification, equivalent change and modification made by the above embodiments.
Claims (5)
1. The utility model provides an air gun, includes the rifle body, and rifle body left end is equipped with the barrel, and rifle body right-hand member lower part is equipped with handle, its characterized in that: the lower end of the handle is provided with an air inlet joint, and an inner hole at the left end part of the gun barrel is provided with an inner thread for connecting a conversion joint; be equipped with three way connection in the handle, rifle body upper portion right side is equipped with the manometer, rifle body left side lower part is equipped with instrumentation, the internal tribit three-way valve that is equipped with of rifle, three way connection's first interface is connected with the air inlet connection upper end port through first trachea, three way connection's second interface passes through the second trachea and is connected with the manometer, three way connection's third interface passes through the first interface connection of third trachea and three-way valve, three way three-way valve's second interface passes through the fourth trachea and is connected with instrumentation, three way three-way valve's third interface passes through the fifth trachea and is connected with the port of barrel left side.
2. An air gun as claimed in claim 1, wherein: the rifle body top is equipped with the recess in the top of tribit three-way valve, and the valve rod upper end of tribit three-way valve is equipped with the knob that is located the recess, and the top and the front and back side of recess are all uncovered, and preceding, the rear side of knob protrusion recess respectively in front of, the rear side.
3. An air gun according to claim 1 or 2, characterized in that: a miniature adjustable pressure reducing valve is arranged on the fourth air pipe.
4. A gas gun as claimed in claim 3, wherein: a check valve is arranged in the right port of the gun barrel, and the outlet of the fifth air pipe is connected with the inlet of the check valve.
5. An air gun as claimed in claim 1, wherein: the rifle body left side lower part is equipped with female connection, is equipped with the sealing washer in the female connection, and measuring instrument's connector threaded connection is in female connection, and the fourth trachea is connected with female connection last port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022758141.3U CN214467827U (en) | 2020-11-25 | 2020-11-25 | Air gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022758141.3U CN214467827U (en) | 2020-11-25 | 2020-11-25 | Air gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214467827U true CN214467827U (en) | 2021-10-22 |
Family
ID=78184214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022758141.3U Active CN214467827U (en) | 2020-11-25 | 2020-11-25 | Air gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214467827U (en) |
-
2020
- 2020-11-25 CN CN202022758141.3U patent/CN214467827U/en active Active
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