CN210266697U - Novel sulfur hexafluoride air supplement device - Google Patents

Abstract

The utility model discloses a novel sulfur hexafluoride tonifying qi device, it makes shell internal layout and fixed more reasonable reliable through battery protection equipment frame, solenoid valve equipment frame and pressure sensor equipment frame. The utility model has the advantages that the air inlet quick plug and the air inflation quick plug are arranged on the surface of the shell for installing the display screen; the shell comprises an upper shell and a lower shell which are buckled with each other, and the display screen is arranged on the upper shell; the lower shell comprises a bottom surface and two opposite side surfaces; the bottom surface is provided with a base plate through a cushion block support, and the base plate is provided with an electromagnetic valve assembling frame for installing an electromagnetic valve, a pressure sensor assembling frame for installing a pressure sensor and a battery protection mounting frame for installing a lithium battery.

Description

Novel sulfur hexafluoride air supplement device

Technical Field

The utility model relates to an air supplement unit of sulfur hexafluoride equipment specifically is used for the periodic replenishment sulfur hexafluoride gas of relevant sulfur hexafluoride equipment such as sulfur hexafluoride circuit breaker, cubical switchboard, GIS.

Background

In the use process of sulfur hexafluoride gas insulation technology-based equipment such as sulfur hexafluoride circuit breakers, switch cabinets, GIS and other related sulfur hexafluoride equipment, the phenomenon of insufficient internal gas pressure often occurs, the reliable insulation effect cannot be achieved after the condition lasts for a long time, and the gas needs to be supplemented timely and regularly;

in particular, SF6 gas has gained widespread use in high-voltage electrical equipment in recent years due to its excellent insulating and arc-extinguishing properties. SF6 gas-insulated equipment has become the direction of development of high-voltage electrical equipment. At present, SF6 gas insulated circuit breakers and SF6 Gas Insulated Substations (GIS) are widely applied in 63-500 KV power systems in China. SF6 high-voltage electrical equipment (circuit breaker, GIS, mutual inductor, etc.) is subjected to conventional tests in operation, such as water content test and decomposition product test in SF6 gas, SF6 density relay check, etc., or internal pressure and density decrease due to aging of sealing elements of an equipment body, so that new SF6 gas needs to be supplemented. When a new SF6 high-voltage electrical device is inflated, and the device is put into operation on site for air supplement and the like, the conventional general operation method adopts simple tools such as a common oxygen pressure reducing valve and a common rubber pipe for operation.

Chinese patent (patent No. 201721283630X, publication No. CN207407061U, publication No. 2018.05.25, and reference document 1 for short) discloses a portable sulfur hexafluoride automatic air supply device, which belongs to an earlier and more mature air supply technology superior to manual control; in the long-term use and development of the technical product of the comparison document 1, we find that the product corresponding to the comparison document 1 has the following defects:

(1) the gas circuit connection in the comparison document 1 is mainly realized by means of an integrated block, the structure is compact and the precision is high, but in actual use, if functional components such as a sensor and the like need to be added to a gas supplementing host of a gas supplementing device, the integrated block needs to be customized and modified, even the original reserved hole sites and channels are completely abandoned, and the expandability is poor; however, if the structure of the integrated block is abandoned, how to realize the optimal fixed arrangement of the main components such as the electromagnetic valve, the pressure sensor and the like is a problem to be solved;

(2) the (lithium battery) battery in the comparison document 1 is independently fixed, is not reliably fixed, and is not provided with a protection limiting device, so that the battery is easily loosened in the environment such as carrying, use and the like of the air supply host machine, and the damage to core components is caused; the battery is covered by increasing the cover, but the covering is not beneficial to heat dissipation;

(3) the comparison document 1 has no flow monitoring structure, so that the inflation flow cannot be controlled very accurately, the start and stop of the electromagnetic valve can be controlled only according to experience and display of a gauge head of sulfur hexafluoride equipment, the standard inflation control is not facilitated, and the influence is easily caused by too much or too fast inverted inflation due to negligence of observation; (excessive inflation requires deflation, and too fast inflation easily causes instability of gas path equipment);

(4) the comparison document 1 has no detection function on the gas purity of the sulfur hexafluoride gas cylinder, and the core technology of the gas supplementing device is the gas supplementing main machine, so that the gas supplementing main machine can be purchased in large quantity, then the source of the sulfur hexafluoride gas in the gas cylinder on the gas supplementing site is complex, and whether the purity reaches the standard can directly influence the influence of the filled sulfur hexafluoride gas on the overall insulation reliability.

(5) The handle in the comparison document 1 is arranged on the side surface and is for portability, but along with the increase of the extended function of the air supply device, the mode of a single handle on the side surface is not easy to lift after the weight is increased, and on the other hand, the air supply host machine is lifted on the side surface and must be used for independently and reliably reinforcing the side surface, and a support leg is designed on the other side surface for supporting, so that the cost is increased for a portable structure.

(6) The air inlet and the air charging port of the comparison document 1 are respectively arranged at two sides of the air charging host shell, and too many positions are considered by engineers in pipeline connection and disassembly, so that the operation is not easy; specifically, the engineer must observe at the front (the surface that has the display screen) even during the work in connecting and demolising, controls etc. and the both ends are connected not only too much and are occupied both sides space, still make engineer (user) operation too busy in disorder.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to solve the deficiencies in the prior art, and to disclose a novel sulfur hexafluoride gas supply device, which preferentially solves the problems of two ends of the air inlet and the air charging port, the defects of the integrated block structure and the assembly defects of the battery in the background art; make air inlet and inflation inlet use more convenient, through battery protection equipment frame, solenoid valve equipment frame and pressure sensor equipment frame make the inside overall arrangement of shell with fix more reasonable reliable.

The utility model provides a technical scheme that its technical problem adopted is: a novel sulfur hexafluoride gas supplementing device is used for filling sulfur hexafluoride gas in a gas cylinder into sulfur hexafluoride equipment; the sulfur hexafluoride gas supply device comprises a gas charging pipeline for supplying gas, wherein one end of the gas charging pipeline is provided with a gas inlet joint for connecting with a gas bottle, and the other end of the gas charging pipeline is provided with a gas charging joint for connecting with sulfur hexafluoride equipment;

the 1 st electromagnetic valve and the 2 nd electromagnetic valve for controlling inflation are sequentially connected in series on the inflation pipeline; the system also comprises a 3 rd electromagnetic valve and a 4 th electromagnetic valve which are communicated with the inflation pipeline through an exhaust pipeline and are respectively connected with the 1 st electromagnetic valve and the 2 nd electromagnetic valve in parallel and used for controlling exhaust; an air inlet pressure sensor is arranged at the front end of the No. 1 electromagnetic valve on the air charging pipeline, and an air charging port pressure sensor and a temperature sensor are arranged at the rear end of the No. 2 electromagnetic valve on the air charging pipeline; also comprises a housing; the top surface of the shell is provided with a display screen;

the utility model discloses in:

the air inlet connector is an air inlet quick plug, the air inflation connector is an air inflation quick plug, and the air inlet quick plug and the air inflation quick plug are arranged on the surface of the shell, which is provided with the display screen;

the shell comprises an upper shell and a lower shell which are buckled with each other, and the display screen is arranged on the upper shell;

the lower shell comprises a bottom surface and two opposite side surfaces; a cushion plate is supported and installed on the bottom surface through a cushion block, and an electromagnetic valve assembling frame for installing an electromagnetic valve, a pressure sensor assembling frame for installing a pressure sensor and a battery protection installing frame for installing a lithium battery are arranged on the cushion plate;

the electromagnetic valve assembling frame comprises an inverted U-shaped frame, and two sides of the bottom of the inverted U-shaped frame are fixed on the base plate through electromagnetic valve assembling frame ear plates; fixing adjusting grooves for fixing L-shaped electromagnetic valve fixing connecting pieces are formed in the surface of the inverted U-shaped frame and the lower portion of the base plate, which is located below the surface of the inverted U-shaped frame; the electromagnetic valve is connected with the electromagnetic valve fixed connecting piece;

the pressure sensor assembling frame comprises an upper fixing ring and a lower fixing ring which are used for fixing the air inlet pressure sensor and the inflation inlet pressure sensor, and a connecting transition platform which is fastened through bolts is arranged between the upper fixing ring and the lower fixing ring; the bottom of the lower fixing ring is provided with an assembling platform for connecting with the base plate, and a screw passes through the assembling platform from the inside of the lower fixing ring through a screw hole and then is connected with the base plate;

the battery protection mounting frame comprises an inverted U-shaped plate, and two sides of the bottom of the inverted U-shaped plate are fixed on the base plate through lug plates of the battery pack mounting frame; the surface both sides of falling the U-shaped board downwardly extending are used for spacing the spacing guard plate of spacing lithium cell.

As a preferred embodiment of the present invention: the manual flowmeter is connected in series on the inflation pipeline, and a control knob and a display panel of the manual flowmeter are positioned on a vertical surface of the upper shell adjacent to the upper surface; the manual flowmeter is characterized by further comprising a flowmeter assembling frame used for fixing the manual flowmeter, the flowmeter assembling frame comprises a vertical plate located inside the shell, four through holes are formed in four corners of the vertical plate and correspond to the vertical plate, the vertical face of the upper shell used for assembling the flowmeter display panel is provided with four alignment holes, and the bolts penetrate through the through holes and the alignment holes and then fix the manual flowmeter between the vertical plate and the vertical face of the upper shell.

As a preferred embodiment of the present invention: a purity sensor for detecting the purity of the gas in the gas cylinder is connected in parallel with the gas charging pipeline; a 5 th electromagnetic valve and a 6 th electromagnetic valve are respectively arranged on two sides of the purity sensor; the purity sensor is fixed on the backing plate; the purity sensor includes the air chamber, and the one end that the purity sensor was kept away from to the air chamber is provided with the air chamber end cover.

As a preferred embodiment of the present invention: the far end of the exhaust pipeline is connected with a gas collecting tank, and a gas collecting electromagnetic valve is arranged on a connecting pipeline of the gas collecting tank and the exhaust pipeline.

As a preferred embodiment of the present invention: a 1 st manual valve for manual exhaust is arranged at the front end of the 1 st electromagnetic valve on the gas charging pipeline, and a 2 nd manual valve for manual exhaust is arranged between a 2 nd electromagnetic valve and sulfur hexafluoride equipment; the manual valve buttons of the first and 2 nd manual valves are located on an upper surface of the upper case.

As a preferred embodiment of the present invention: the 1 st manual valve and the 2 nd manual valve are button switch valves.

As a preferred embodiment of the present invention: two groups of ventilation grids are correspondingly arranged on two side plates of the lower shell respectively; flanges extend out of the edges of the lower shell along the direction perpendicular to the inner surface, and the flanges at the tops of the side plates are connected with two handles through handle fastening bolts; the handle fastening bolt penetrates through the flange and the upper surface of the upper shell to be connected with the handle.

As a preferred embodiment of the present invention: and side through holes are formed in two sides of the inverted U-shaped frame of the electromagnetic valve assembling frame.

Compared with the prior art, the utility model has the following advantage:

the utility model discloses a novel sulfur hexafluoride gas supplementing device, wherein a gas inlet joint is a gas inlet quick plug, a gas charging joint is a gas charging quick plug, and the gas inlet quick plug and the gas charging quick plug are arranged on the surface of a shell mounting display screen; therefore, the utility model realizes the purpose that the external pipeline is directly executed on the surface with most functions when the external pipeline is disassembled and assembled by arranging the air inlet joint and the air charging joint on the surface, and does not need to consider the rest positions too much;

the shell of the utility model comprises an upper shell and a lower shell which are buckled with each other, and the display screen is arranged on the upper shell; the buckling structure enables the shell structure to be simple and convenient to assemble.

The lower shell of the utility model comprises a bottom surface and two opposite side surfaces; a cushion plate is supported and installed on the bottom surface through a cushion block, and an electromagnetic valve assembling frame for installing an electromagnetic valve, a pressure sensor assembling frame for installing a pressure sensor and a battery protection installing frame for installing a lithium battery are arranged on the cushion plate; the backing plate can keep a distance between the internal device and the bottom surface, and a buffer space is provided;

the solenoid valve assembling frame comprises an inverted U-shaped frame, and two sides of the bottom of the inverted U-shaped frame are fixed on the base plate through the lug plates of the solenoid valve assembling frame; fixing adjusting grooves for fixing L-shaped electromagnetic valve fixing connecting pieces are formed in the surface of the inverted U-shaped frame and the lower portion of the base plate, which is located below the surface of the inverted U-shaped frame; the electromagnetic valve is connected with the electromagnetic valve fixed connecting piece; the solenoid valve assembling frame is used for assembling solenoid valves, the number of the solenoid valves is more, and the number of the solenoid valves is at least four, so that the solenoid valves are assembled up and down through designing the inverted U-shaped frame, the occupation of a plane space is reduced, and the position can be easily adjusted by fixing the adjusting groove during assembling; it should be noted that, the gas circuit of the utility model is connected by the hose, the connection principle is the same as the gas circuit principle of the attached figure 1 of the specification and the comparison document 1, only the comparison document 1 integrates the gas circuit in the integrated block, the utility model realizes the gas circuit component by the hose connecting the parts such as the electromagnetic valve, the improvement point of the utility model lies in the fixation and the arrangement of each main part after the integrated block is cancelled; the electromagnetic valve assembling frame realizes convenient installation of the electromagnetic valve, can adjust the position, and saves the transverse space due to the upper and lower double-layer arrangement; the distance between the base plate and the bottom surface is long, so that the base plate is provided with the fixed adjusting groove;

the pressure sensor assembling frame comprises an upper fixing ring and a lower fixing ring which are used for fixing the air inlet pressure sensor and the inflation inlet pressure sensor, and a connecting transition platform which is fastened through bolts is arranged between the upper fixing ring and the lower fixing ring; the bottom of the lower fixing ring is provided with an assembling platform for connecting with the base plate, and a screw passes through the assembling platform from the inside of the lower fixing ring through a screw hole and then is connected with the base plate; the pressure sensor assembling frame has two pressure sensors, the upper fixing ring and the lower fixing ring are designed for fixing the two pressure sensors according to the cylinder structure model of the pressure sensors, the pressure sensor assembling frame is very ingenious, the whole pressure sensor assembling frame is fixed on the base plate through the tissue platform, and the structure is reliable;

the utility model discloses a battery protection mounting bracket comprises an inverted U-shaped plate, wherein both sides of the bottom of the inverted U-shaped plate are fixed on a backing plate through battery assembly bracket ear plates; the surface both sides of falling the U-shaped board downwardly extending are used for spacing the spacing guard plate of spacing lithium cell. The protection has been realized through the template of falling the U type to the battery protection mounting bracket on the one hand, consequently possesses to compare whole covers and establishes better radiating effect, and on the other hand still carries on spacingly through the spacing guard plate of extension, and transition when preventing long-term use and removal is rocked and is passed through not hard up.

Drawings

Fig. 1 is a general schematic view of the structural principle of an embodiment of the present invention;

FIG. 2 is an external view of an embodiment of the air supply main unit of the present invention;

FIG. 3 is a schematic structural diagram of an upper housing of the air supply main unit;

FIG. 4 is a schematic structural diagram of a lower housing of the air supply main unit;

FIG. 5 is a schematic view of the internal structure of the air supply main unit;

FIG. 6 is a schematic diagram of the detailed structure of the interior of the air supply main unit;

FIG. 7 is a schematic structural view of a battery protection assembly frame;

FIG. 8 is a schematic structural view of a pressure sensor assembly rack;

fig. 9 is a schematic structural view of the solenoid valve assembly stand.

Description of reference numerals:

1-gas cylinder, 2-1 st manual valve, 3-1 st electromagnetic valve, 4-2 nd electromagnetic valve, 5-2 nd manual valve, 6-sulfur hexafluoride equipment, 7-purity sensor, 8-charging port pressure sensor, 9-temperature sensor, 10-4 th electromagnetic valve, 11-3 rd electromagnetic valve, 12-gas inlet pressure sensor, 13-gas collection electromagnetic valve, 14-gas collection tank, 15-5 th electromagnetic valve, 16-6 th electromagnetic valve and 17-pressure reducing valve;

101-upper shell, 102-lower shell, 103-ventilation grille, 104-display screen, 105-manual valve button, 106-handle, 107-control button, 108-power switch, 109-air inlet quick plug, 110-air charging quick plug, 111-manual flowmeter, 112-flange, 113-handle fastening bolt, 114-cushion block, 115-backing plate, 116-electromagnetic valve assembling frame, 117-pressure sensor assembling frame, 118-pressure sensor, 119-electromagnetic valve, 120-flowmeter assembling frame, 121-battery protection assembling frame, 122-lithium battery, 123-purity sensor, 124-air chamber, 125-air chamber end cover;

1171-an upper fixing ring, 1172-a lower fixing ring, 1173-a connecting transition platform, 1174-an assembling platform, 1175-a screw hole and 1176-a bolt hole; 1161-an inverted U-shaped frame, 1162-an electromagnetic valve assembling frame lug plate, 1163-a fixed adjusting groove, 1164-an electromagnetic valve fixed connecting piece and 1165-a side through hole; 1211-inverted U-shaped plate, 1212-battery assembling frame ear plate, 1213-limiting protection plate.

Detailed Description

The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that the functions, methods, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.

As shown in fig. 1 to 9, which show a specific embodiment of the present invention; as shown in the figures, the utility model discloses a novel sulfur hexafluoride gas supplementing device, which is used for charging sulfur hexafluoride gas in a gas cylinder 1 into sulfur hexafluoride equipment 6; the sulfur hexafluoride gas supply device comprises a gas charging pipeline for supplying gas, wherein one end of the gas charging pipeline is provided with a gas inlet joint for connecting with a gas cylinder 1, and the other end of the gas charging pipeline is provided with a gas charging joint for connecting with sulfur hexafluoride equipment 6;

the 1 st electromagnetic valve 3 and the 2 nd electromagnetic valve 4 for controlling inflation are sequentially connected in series on the inflation pipeline; the system also comprises a 3 rd electromagnetic valve 11 and a 4 th electromagnetic valve 10 which are communicated with the inflation pipeline through an exhaust pipeline and are respectively connected with the 1 st electromagnetic valve 3 and the 2 nd electromagnetic valve 4 in parallel and used for controlling exhaust; an air inlet pressure sensor 12 is arranged at the front end of the 1 st electromagnetic valve on the inflation pipeline, and an inflation inlet pressure sensor 8 and a temperature sensor are arranged at the rear end of the 2 nd electromagnetic valve on the inflation pipeline; also comprises a housing; the top surface of the housing is provided with a display screen 104; the structure is disclosed in the comparison document 1, belongs to the prior art, and part of the part names are different from those of the comparison document 1, but the functions and positions can be completely and definitely the basic structure disclosed in the comparison document 1; the following structure is the improvement point of the utility model:

the utility model discloses in:

the air inlet connector is an air inlet quick plug 109, the air inflation connector is an air inflation quick plug 110, and the air inlet quick plug and the air inflation quick plug are arranged on the surface of the shell mounting display screen 104;

the shell comprises an upper shell 101 and a lower shell 102 which are buckled with each other, and the display screen 104 is arranged on the upper shell 101;

the lower housing 102 comprises a bottom surface and two opposite side surfaces; a backing plate 115 is supported and mounted on the bottom surface through a cushion block 114, and an electromagnetic valve assembling frame 116 for mounting an electromagnetic valve 119, a pressure sensor assembling frame 117 for mounting a pressure sensor 118 and a battery protection mounting frame 121 for mounting a lithium battery 122 are arranged on the backing plate 115;

the solenoid valve assembling frame 116 comprises an inverted U-shaped frame 1161, and two sides of the bottom of the inverted U-shaped frame 1161 are fixed on the base plate 115 through solenoid valve assembling frame lug plates 1162; fixing adjusting grooves 1163 for fixing L-shaped electromagnetic valve fixing connecting pieces are formed in the surface of the inverted U-shaped frame and the lower portion of the base plate, located below the surface of the inverted U-shaped frame; the solenoid valve is connected with the solenoid valve fixed connecting piece 1164;

the pressure sensor assembling frame comprises an upper fixing ring 1171 and a lower fixing ring 1172 which are used for fixing the air inlet pressure sensor and the inflation inlet pressure sensor, and a connecting transition platform 1173 which is fastened through bolts is arranged between the upper fixing ring and the lower fixing ring; the bottom of the lower fixing ring is provided with an assembling platform 1174 used for being connected with the backing plate, and a screw passes through the assembling platform 1174 from the inside of the lower fixing ring through a screw hole 1175 and then is connected with the backing plate 115;

the battery protection mounting frame 121 comprises an inverted U-shaped plate 1211, wherein two sides of the bottom of the inverted U-shaped plate 1211 are fixed on the base plate 115 through battery assembly frame ear plates 1212; the two sides of the surface of the inverted U-shaped plate extend downwards to form limiting protection plates 1213 for limiting the lithium battery.

Preferably, as shown in fig. 1, 2, 3 and 4: the device also comprises a manual flow meter 111 connected in series on the inflation pipeline, wherein a control knob and a display panel of the manual flow meter are positioned on a vertical surface of the upper shell adjacent to the upper surface; still contain the flowmeter equipment frame 120 that is used for fixed manual flowmeter, flowmeter equipment frame contains the riser that is located the shell inside, and four through-holes are seted up to the riser four corners, and is corresponding, and the facade that the epitheca body is used for assembling flowmeter display panel sets up four counterpoint holes, and the bolt passes behind through-hole and the counterpoint hole fixes manual flowmeter between riser and the epitheca body facade. The embodiment adds the flowmeter, solves the defect of the (3) position in the comparison document 1 in the background technology, and enables the flow to be adjustable; manual flowmeter's regulation is convenient, uses reliably, and manual flowmeter is vertical more is fit for air supplement unit's use operating mode for setting up moreover, and most electron flowmeters set up for the horizontal direction at present, and electron flowmeter's reliability lacks on the one hand, and on the other hand manual flowmeter is vertical to be set up and is applicable to air supplement unit's specific use operating mode.

Preferably, as shown in fig. 1, 5 and 6: a purity sensor 7 for detecting the purity of the gas in the gas cylinder is connected in parallel with the gas charging pipeline; a 5 th electromagnetic valve 15 and a 6 th electromagnetic valve 16 are respectively arranged on two sides of the purity sensor; the purity sensor is fixed on the backing plate 115; the purity sensor comprises a gas chamber 124, and a gas chamber end cover 125 is arranged at one end of the gas chamber far away from the purity sensor. The purity sensor is added in the embodiment, the electric control part of the purity sensor adopts the prior art, the purity sensor is mainly introduced into a gas path of the whole device, a basic mechanical structure is realized, the purity sensor can be an infrared SF6 purity sensor produced by Shenzhen Shenkan technology Limited, the brand NE series is a high-resolution suction-type infrared SF6 purity sensor, and a broad-spectrum infrared light source (2-20 μm), a narrow-band interference filter, a high-sensitivity infrared detector, digital signal processing, a temperature automatic compensation technology and a suction-type structure are adopted.

Preferably, as shown in fig. 1: the far end of the exhaust pipeline is connected with a gas collecting tank 14, and a gas collecting electromagnetic valve 13 is arranged on a connecting pipeline of the gas collecting tank and the exhaust pipeline. The gas collection tank is designed for collecting the exhausted sulfur hexafluoride gas; the foregoing embodiments do not mention specific exhaust gas path distribution, because the foregoing embodiments are used to solve the technical problems of the present invention that need to be solved urgently; the gas collecting tank is designed to realize waste gas collection, and the on-site environment-friendly operation is facilitated.

Preferably, as shown in fig. 1 and 2: a 1 st manual valve 2 for manual exhaust is arranged at the front end of the 1 st electromagnetic valve on the gas charging pipeline, and a 2 nd manual valve 5 for manual exhaust is arranged between the 2 nd electromagnetic valve and sulfur hexafluoride equipment; the manual valve buttons of the first and 2 nd manual valves are located on an upper surface of the upper case. The manual valve disclosed by the embodiment can be used for manually exhausting air under the condition of no electricity, and the cleanness of the interior of a pipeline is ensured.

Preferably, as shown in fig. 1: the 1 st manual valve and the 2 nd manual valve are button switch valves. The button switch valve is simple to operate and control and can be pressed.

Preferably, as shown in fig. 1, 2 and 4: two groups of ventilation grids 103 are correspondingly arranged on two side plates of the lower shell respectively; the edges of the lower shell extend out of flanges 112 along the direction vertical to the inner surface, and the flanges at the tops of the side plates are respectively connected with two handles 106 through handle fastening bolts; the handle fastening bolt 113 is coupled to the handle through the flange and the upper surface of the upper case. The two groups of ventilation grids have good heat dissipation; the reference 1 is a set of ventilation fans; the flange is ingeniously designed to realize the overlapping and assembling of the buckling of the upper shell and the lower shell, and after the handle is assembled, not only is the handle fixed, but also the connection of the buckled upper shell and the buckled lower shell is realized; the handles of the embodiment are arranged on two sides of the surface where the display screen is arranged, so that the use is more direct, and the defects of the handles of the comparison document 1 in the background art are overcome.

Preferably, as shown in fig. 9: and side through holes 1165 are formed in two sides of the inverted U-shaped frame of the electromagnetic valve assembling frame. The side through-hole alleviates equipment frame weight on the one hand, and on the other hand can be used for wearing to establish pipeline and linear speed for the inside overall arrangement is more nimble.

The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (8)

1. A novel sulfur hexafluoride gas supplementing device is used for filling sulfur hexafluoride gas in a gas cylinder into sulfur hexafluoride equipment; the sulfur hexafluoride gas supply device comprises a gas charging pipeline for supplying gas, wherein one end of the gas charging pipeline is provided with a gas inlet joint for connecting with a gas bottle, and the other end of the gas charging pipeline is provided with a gas charging joint for connecting with sulfur hexafluoride equipment;

the 1 st electromagnetic valve and the 2 nd electromagnetic valve for controlling inflation are sequentially connected in series on the inflation pipeline; the system also comprises a 3 rd electromagnetic valve and a 4 th electromagnetic valve which are communicated with the inflation pipeline through an exhaust pipeline and are respectively connected with the 1 st electromagnetic valve and the 2 nd electromagnetic valve in parallel and used for controlling exhaust; an air inlet pressure sensor is arranged at the front end of the No. 1 electromagnetic valve on the air charging pipeline, and an air charging port pressure sensor and a temperature sensor are arranged at the rear end of the No. 2 electromagnetic valve on the air charging pipeline; also comprises a housing; the top surface of the shell is provided with a display screen;

the method is characterized in that:

the air inlet connector is an air inlet quick plug, the air inflation connector is an air inflation quick plug, and the air inlet quick plug and the air inflation quick plug are arranged on the surface of the shell, which is provided with the display screen;

the shell comprises an upper shell and a lower shell which are buckled with each other, and the display screen is arranged on the upper shell;

the lower shell comprises a bottom surface and two opposite side surfaces; a cushion plate is supported and installed on the bottom surface through a cushion block, and an electromagnetic valve assembling frame for installing an electromagnetic valve, a pressure sensor assembling frame for installing a pressure sensor and a battery protection installing frame for installing a lithium battery are arranged on the cushion plate;

the electromagnetic valve assembling frame comprises an inverted U-shaped frame, and two sides of the bottom of the inverted U-shaped frame are fixed on the base plate through electromagnetic valve assembling frame ear plates; fixing adjusting grooves for fixing L-shaped electromagnetic valve fixing connecting pieces are formed in the surface of the inverted U-shaped frame and the lower portion of the base plate, which is located below the surface of the inverted U-shaped frame; the electromagnetic valve is connected with the electromagnetic valve fixed connecting piece;

the pressure sensor assembling frame comprises an upper fixing ring and a lower fixing ring which are used for fixing the air inlet pressure sensor and the inflation inlet pressure sensor, and a connecting transition platform which is fastened through bolts is arranged between the upper fixing ring and the lower fixing ring; the bottom of the lower fixing ring is provided with an assembling platform for connecting with the base plate, and a screw passes through the assembling platform from the inside of the lower fixing ring through a screw hole and then is connected with the base plate;

the battery protection mounting frame comprises an inverted U-shaped plate, and two sides of the bottom of the inverted U-shaped plate are fixed on the base plate through lug plates of the battery pack mounting frame; the surface both sides of falling the U-shaped board downwardly extending are used for spacing the spacing guard plate of spacing lithium cell.

2. A novel sulfur hexafluoride gas supply device as claimed in claim 1, wherein: the manual flowmeter is connected in series on the inflation pipeline, and a control knob and a display panel of the manual flowmeter are positioned on a vertical surface of the upper shell adjacent to the upper surface; the manual flowmeter is characterized by further comprising a flowmeter assembling frame used for fixing the manual flowmeter, the flowmeter assembling frame comprises a vertical plate located inside the shell, four through holes are formed in four corners of the vertical plate and correspond to the vertical plate, the vertical face of the upper shell used for assembling the flowmeter display panel is provided with four alignment holes, and the bolts penetrate through the through holes and the alignment holes and then fix the manual flowmeter between the vertical plate and the vertical face of the upper shell.

3. A novel sulfur hexafluoride gas supply device as claimed in claim 1, wherein: a purity sensor for detecting the purity of the gas in the gas cylinder is connected in parallel with the gas charging pipeline; a 5 th electromagnetic valve and a 6 th electromagnetic valve are respectively arranged on two sides of the purity sensor; the purity sensor is fixed on the backing plate; the purity sensor includes the air chamber, and the one end that the purity sensor was kept away from to the air chamber is provided with the air chamber end cover.

4. A novel sulfur hexafluoride gas supply device as claimed in claim 1, wherein: the far end of the exhaust pipeline is connected with a gas collecting tank, and a gas collecting electromagnetic valve is arranged on a connecting pipeline of the gas collecting tank and the exhaust pipeline.

5. A novel sulfur hexafluoride gas supply device as claimed in claim 1, wherein: a 1 st manual valve for manual exhaust is arranged at the front end of the 1 st electromagnetic valve on the gas charging pipeline, and a 2 nd manual valve for manual exhaust is arranged between a 2 nd electromagnetic valve and sulfur hexafluoride equipment; the manual valve buttons of the first and 2 nd manual valves are located on an upper surface of the upper case.

6. A novel sulfur hexafluoride gas supply device as claimed in claim 5, wherein: the 1 st manual valve and the 2 nd manual valve are button switch valves.

7. A novel sulfur hexafluoride gas supply device as claimed in claim 1, wherein: two groups of ventilation grids are correspondingly arranged on two side plates of the lower shell respectively; flanges extend out of the edges of the lower shell along the direction perpendicular to the inner surface, and the flanges at the tops of the side plates are connected with two handles through handle fastening bolts; the handle fastening bolt penetrates through the flange and the upper surface of the upper shell to be connected with the handle.

8. A novel sulfur hexafluoride gas supply device as claimed in claim 1, wherein: and side through holes are formed in two sides of the inverted U-shaped frame of the electromagnetic valve assembling frame.

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