CN209559410U - A kind of inflation pressure maintaining test macro of air charging system and container - Google Patents

Abstract

The utility model relates to the inflation pressure maintaining test macros of a kind of air charging system and container, and the air charging system includes gas-charging connection and charge gun；The gas-charging connection is equipped with interconnected first interface, second interface and third interface；The charge gun is equipped with the on off mechanism of the 4th interface, the 5th interface and the connected state for controlling the 4th interface and the 5th interface；The first interface and the 4th interface are detachably connected.Three interfaces of gas-charging connection are by different design and connecting object, and can realize respectively different function: first interface is connect with the charge gun, and the second interface can be used for connecting with the inflating port to aeration vessel, and the third interface can be used for deflating；This air charging system is used for the welded seal and resistance test of liner, dwell time and evacuation time can be reduced, detection efficiency, and then improving production efficiency can be effectively promoted, greatly reduce labor intensity.

Description

A kind of inflation pressure maintaining test macro of air charging system and container

Technical field

The utility model relates to inflate a kind of inflation pressure maintaining of technical field more particularly to air charging system and container test system System.

Background technique

Various containers can often be used in life and production, these containers according to use environment and purposes not Together, also different to the requirement of its performance.As long as some meet simple containment, and have some to its air-tightness It is required that then higher, it is desirable that container used in the mainly production of higher container.Enamel cistern is that a kind of leakproofness is preferably held Device needs to detect the welded seal of liner and pressure resistance after the completion of liner welding, and liner dwell pressure requires big In 1.0MPa, dwell time 60s, pressure 0.05MPa is supplemented, the first step of this detection is to inflate into liner；And it is current Thread straight-through formula air charging system be to connect connector with liner inflating port, then tracheae is connect with connector, due to pressure compared with Often there is tracheae greatly to fall off, not only breaks up being normally carried out for detection process, and easily cause danger, damage operator's Personal safety.

Utility model content

In order to solve the problems in the prior art, the utility model provides the inflation pressure maintaining of a kind of air charging system and container Test macro.

A kind of air charging system, including gas-charging connection and charge gun；

The gas-charging connection is equipped with interconnected first interface, second interface and third interface；

The charge gun is equipped with the 4th interface, the 5th interface and for controlling the 4th interface and the 5th interface The on off mechanism of connected state；

The first interface and the 4th interface are detachably connected.

Further, the gas-charging connection include tee tube, be connected to the sealing of first mouth of the tee tube first Connector, the second connector being connected to the sealing of second mouth of the tee tube and the third mouth sealing with the tee tube The valve of connection；

The third interface is formed in the valve.

Further, first connector includes casing, and described sleeve pipe is from its axial first end to its axial second end It successively include linkage section, limit section and spool section；

The linkage section is connected to the sealing of first mouth of the tee tube；

Stabilizer blade is equipped in the limit section；

First interface is formed in the spool section；The spool section includes setting gradually along the direction far from the limit section First segment, second segment and third section, the internal diameter of the first segment, the second segment and the third section be sequentially reduced make it is described The inner wall of spool section is stepped；

Spool is equipped in described sleeve pipe, the spool includes stem and core cap, the one end of the stem far from the core cap Through the stabilizer blade, the outer circumference surface of the core cap is connect with the inner peripheral surface of the third section, the stem and described second Be equipped with the first sealing ring between section, be arranged with the first elastic component on the stem, the both ends of first elastic component respectively with it is described The end face of the axial first end of stabilizer blade and first sealing ring offsets, the end face point of the axial second end of first sealing ring It does not connect with the end face of the end face of the axial first end of the third section and the axial first end of the core cap, is set on the stem There is the stop collar for being detached from the stabilizer blade for limiting the stem.

Further, second connector is that screw thread screws pipe, and the screw thread screws the outer circle of the axial first end of pipe Circumferential surface is connect with the inner circumferential thread of second mouth of the tee tube, and the screw thread screws the outer circle of the axial second end of pipe Circumferential surface is equipped with the external screw thread to match with the internal screw thread of the inflating port to aeration vessel；

The screw thread, which screws, forms the second interface in the axial second end of pipe.

Further, the screw thread screws pipe equipped with the first annular projection, and first annular projection is set to the screw thread Between the axial first end and the screw thread for screwing pipe screw the axial second end of pipe, the separate spiral shell of first annular projection The end face that line screws the axial first end of pipe is equipped with annular groove, is equipped with the second sealing ring in the annular groove；

The outer wall of first annular projection is equipped with rotating handles, diameter of the rotating handles along first annular projection To setting.

Further, the charge gun component includes shell, and the shell is cylindrical in shape；

The second annular projection is equipped between the axial first end of the shell and its axial second end, described second is cyclic annular convex It rises and is equipped with first through hole and the second through-hole, the first through hole and second through-hole are coaxially disposed and and in the shell Connection, the first through hole is interior to be equipped with closeouts, and gas source connector, shape in the gas source connector are equipped in second through-hole At the 5th interface；

The axial first end of the shell be equipped with first connector match from sealing assembly, it is described from sealing assembly It is interior to form the 4th interface；

The axial first end of the shell is externally provided with the control spanner connecting from sealing assembly with first connector Component；

The on off mechanism include the core valve module being disposed in the housing and set on the shell axial second end and It is flexible so that the 4th interface and the 5th orifice or disconnected rocker assembly for controlling the core valve module.

Further, described from the outer sleeve that sealing assembly includes self-sealing joint and is sheathed on the self-sealing joint；

The axial first end of the self-sealing joint is inserted into the axial second end of the shell and the axis of the self-sealing joint Match and be tightly connected to the inner wall of the axial second end of the outer wall and shell of first end；

The outer wall of the self-sealing joint be equipped with third annular projection, the inner wall of the axial first end of the outer sleeve with it is described The outer wall of third annular projection connects, and the inner wall of the outer sleeve is equipped with fourth annular protrusion, the fourth annular protrusion it is interior Wall is connect with the outer wall of the axial second end of the self-sealing joint, is arranged with the second elastic component on the self-sealing joint, and described The both ends of the two elastic components axis with the end face of the axial second end of the third annular projection and fourth annular protrusion respectively It offsets to the end face of first end；

The axial second end of the self-sealing joint is equipped at least two steel ball holes for extending radially through the self-sealing joint, institute It states and is equipped with steel ball in steel ball hole；

The outer wall of the axial second end of the self-sealing joint is equipped with the first annular recess, is equipped in first annular recess First retaining ring, the end face of the axial second end of the fourth annular protrusion and first retaining ring offset to limit the outer sleeve It is detached from the self-sealing joint；

The axial direction first of the third annular projection, the steel ball hole and first annular recess along the self-sealing joint The direction to its axial second end is held to set gradually.

Further, the inner wall of the shell is equipped with the second annular recess, and it is close to be equipped with third in second annular recess The outer wall of seal, the axial first end of the inner wall and self-sealing joint of the third sealing ring is connect.

Further, the outer wall of the limit section is equipped with the third annular recess to match with the steel ball.

Further, the inner wall of the self-sealing joint is equipped with fourth annular groove, and the is equipped in the fourth annular groove Four sealing rings；

When the first interface is connect with the 4th interface, the inner wall of the 4th sealing ring and the third section it is outer Wall is tightly connected；

The steel ball hole and the fourth annular groove along the self-sealing joint axial first end to its axial second end Direction set gradually.

Further, the core valve module includes sleeve, the thimble in the sleeve, thimble back seat and pressure core；

The axial second end of the sleeve is through the end face of the axial first end of the self-sealing joint, the axial direction of the sleeve The outer wall of second end and the inner wall of the self-sealing joint axial direction first end are tightly connected；

The axial second end of the thimble back seat is equipped with centre hole, and the axial first end of the thimble is set to the centre hole Interior, the thimble is connect with the thimble back seat by the first pin shaft, the first pin shaft being arranged radially along the thimble；

The axial first end of the pressure core is equipped with the first ear, and first ear is equipped with the first pin shaft hole, first pin shaft It is equipped with bearing in hole, is equipped with the second pin shaft in the bearing；The end face of the axial second end of the pressure core and the thimble back seat It offsets；The outer wall of the axial first end of the pressure core is equipped with the 5th annular projection.

Further, the inner wall of the axial first end of the sleeve is equipped with the 5th annular recess, the 5th annular recess Axial first end be equipped with the 6th annular recess；

It is equipped with the second retaining ring in 6th annular recess, seal receptacle bowl is equipped in the 5th annular recess, it is described close The end face for sealing the axial first end of seat bowl is connect with second retaining ring, the end face of the axial second end of the seal receptacle bowl and institute State the side wall connection of the axial second end of the 5th annular recess；

The seal receptacle bowl include endless loop, set on the endless loop axial first end outer wall the 6th annular projection With the 7th annular projection of the outer wall for the axial second end for being set to the endless loop, the 6th annular projection and the 7th ring The 5th sealing ring is equipped between shape protrusion, the inner wall and the endless loop of the 5th sealing ring are tightly connected, the 5th sealing The bottom of the outer wall of circle and the 5th annular recess is tightly connected；

The thimble is equipped with the 8th annular projection, axial first end and the seal receptacle bowl of the 8th annular projection Axial second end offsets.

Further, the thimble is equipped with the second pin shaft hole radially, and it is cyclic annular convex that the thimble back seat is equipped with the 9th It rising, the 9th annular projection is equipped with the third pin shaft hole through the 9th annular projection and the thimble back seat, and described the One pin shaft runs through second pin shaft hole and the third pin shaft hole；

9th annular projection is equipped with the 7th annular recess, is equipped in the 7th annular recess and limits first pin The third retaining ring of the axial movement of axis.

Further, be arranged with third elastic component on the thimble back seat, the axial first end of the third elastic component with 9th annular projection offsets, and the axial second end of the third elastic component offsets with second retaining ring.

Further, the inner wall of the self-sealing joint is equipped at least one the 8th annular recess, the 8th annular recess It is inside equipped with the 6th sealing ring, the inner wall of the 6th sealing ring is connect with the sleeve seal, the outer wall of the 6th sealing ring It is tightly connected with the bottom of the 8th annular recess.

Further, the rocker assembly includes rocker bracket, third pin shaft and rocking bar；

The rocker bracket includes stand tube and bracket ear, and the axial second end of the stand tube runs through the axis of the shell To the end face of one end, the inner wall of the outer wall of the stand tube and the shell is tightly connected；

The end face of the axial second end of the stand tube is connect with the 9th annular projection；

The inner wall of the axial second end of the stand tube be equipped with the tenth annular projection, the inner wall of the tenth annular projection with The outer wall of the thimble back seat is tightly connected, and is arranged with the 4th elastic component on the pressure core and the thimble back seat, and the described 4th Axial one end of elastic component offsets with the 5th annular projection, the axial second end of the 4th elastic component and the bull's eye Shape protrusion offsets；

The bracket ear includes the two parallel plates connected with the axial first end of the stand tube, and two described flat Plate is respectively equipped with mutually coaxial the 4th pin shaft hole, and the rocking bar includes plectane and the operation that connect with the periphery of the plectane Bar, the plectane are equipped with eccentric plate hole, and the third pin shaft extends through the 4th pin shaft hole and the plate hole, the circle The side of plate is equipped with locating rod, and the locating rod offsets with second pin shaft.

Further, the inner wall of the shell is equipped with the 9th annular recess, and it is close to be equipped with the 7th in the 9th annular recess Seal, the inner wall of the 7th sealing ring and the outer wall of the stand tube are tightly connected, the outer wall of the 7th sealing ring and institute The bottom for stating the 9th annular recess is tightly connected.

Further, the inner wall of the stand tube is equipped at least one the tenth annular recess, in the tenth annular recess Equipped with the 8th sealing ring, the inner wall of the 8th sealing ring is connect with the outer wall of the thimble back seat, the 8th sealing ring The bottom of outer wall and the tenth annular recess is tightly connected.

Further, the shell passes through the helical fastener being sheathed on the two outer wall with the stand tube and connects.

Further, the axial first end outer wall of the stand tube is arranged with buffer gasket, the axial direction of the buffer gasket First end is concordant with the axial first end of the stand tube, axial second end and the helical fastener of the buffer gasket Axial first end connection.

Further, the wrench assembly includes spanner fixed frame, spanner, the 4th pin shaft and sliding bar；

End face and the third annular projection of the one end of the spanner fixed frame set on the axial second end of the shell Axial first end end face between, the other end of the spanner fixed frame is equipped with fiveth pin shaft vertical with the axis of the shell Hole, the 4th pin shaft run through the 5th pin shaft hole；

The spanner include handle and with the handle connection two parallel spanner ears, one end of the spanner ear with The handle connection, the other end of the spanner ear are equipped with the 6th pin shaft hole, and the 4th pin shaft runs through the 5th pin shaft hole With the 6th pin shaft hole；The spanner ear is equipped with driving hole, and the outer wall of the self-sealing joint is set there are two pulling respectively with two The matched spanner connecting column of the driving hole of hand ear.

Based on same invention thinking, the utility model additionally provides a kind of inflation pressure maintaining test macro of container, including institute The air charging system stated.

The technical solution of the utility model has the advantages that compared with the immediate prior art

Three interfaces of the air charging system that technical solution provided by the utility model provides, gas-charging connection are set by different Meter and connecting object, can realize respectively different function: first interface is connect with the charge gun, the second interface can be used for and Inflating port to aeration vessel connects, and the third interface can be used for deflating.5th interface of charge gun is connect with gas source, is passed through On off mechanism controls the connected state of the 4th interface and the 5th interface, and when connection can make the gas of gas source pass sequentially through the 5th to connect Mouthful, the 4th interface and first interface enter in band aeration vessel, inflation is completed, then without inflating or passing through third when closing Interface is deflated.This air charging system is used for the welded seal and resistance test of liner, dwell time and evacuation time can be reduced, Detection efficiency, and then improving production efficiency can effectively be promoted；Made in gas replenishment process not by the cooperation of gas-charging connection and charge gun It will appear obscission between gas leakage or part, greatly improve the safety of operation, and easy to operate, greatly reduce labor Fatigue resistance.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of gas-charging connection provided by the utility model；

Fig. 2 is the structural schematic diagram of rotating handles provided by the utility model；

Fig. 3 is the structural schematic diagram of the second connector provided by the utility model；

Fig. 4 is the cross-sectional view of charge gun provided by the utility model；

Fig. 5 is the connection schematic diagram provided by the utility model from sealing assembly and the first connector.

Wherein, the second connector of 1-；The second sealing ring of 2-；3- rotating handles；4- tee tube；The first connector of 5-；6- valve Core；The 4th sealing ring of 7-；8- spanner fixed frame；The 4th pin shaft of 9-；The 6th sealing ring of 10-；11- third sealing ring；12- sleeve； 13- seal receptacle bowl；14- shell；The second retaining ring of 15-；16- closeouts；17- third elastic component；18- third retaining ring；The 4th bullet of 19- Property part；20- helical fastener；21- stand tube；22- buffer gasket；23- bearing；24- third pin shaft；25- plectane；26- second Pin shaft；27- presses core；28- thimble back seat；The first pin shaft of 29-；30- gas source connector；31- thimble；32- spanner；33- steel ball； 34- self-sealing joint；The first ring washer of 35-；36- outer sleeve；The first elastic component of 37-；The first annular projection of 38-；39- annular groove； 40- core cap.

Specific embodiment

It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched The embodiment stated is a part of the embodiment of the utility model, instead of all the embodiments.Based on the reality in the utility model Apply example, those of ordinary skill in the art's every other embodiment obtained without making creative work, all Belong to the range of the utility model protection.

As shown in Figures 1 to 5, the utility model provides a kind of air charging system, including gas-charging connection and charge gun；It is described Gas-charging connection is equipped with interconnected first interface, second interface and third interface；The charge gun is equipped with the 4th interface, the 5th The on off mechanism of interface and the connected state for controlling the 4th interface and the 5th interface；The first interface and institute The 4th interface is stated to be detachably connected.

Three interfaces of gas-charging connection are by different design and connecting object, and can realize different function respectively: first connects Mouth is connect with the charge gun, and the second interface can be used for connecting with the inflating port to aeration vessel, and the third interface can For deflating.5th interface of charge gun is connect with gas source, and the connection of the 4th interface and the 5th interface is controlled by off mechanism State, when connection, can make the gas of gas source pass sequentially through the 5th interface, the 4th interface and first interface to enter band aeration vessel It is interior, inflation is completed, then without inflating or deflating by third interface when closing.The welding that this air charging system is used for liner is close Envelope property and resistance test, can reduce dwell time and evacuation time, can effectively promote detection efficiency, and then improving production efficiency； Make to be not in obscission between gas leakage or part in gas replenishment process by the cooperation of gas-charging connection and charge gun, greatly improve The safety of operation, and it is easy to operate, greatly reduce labor intensity.

In some embodiments of the utility model, the gas-charging connection includes tee tube 4, the with the tee tube 4 First connector 5 of one mouth sealing connection, sealed with second mouth of the tee tube 4 the second connector 1 being connected to and with The valve of the third mouth sealing connection of the tee tube 4；The third interface is formed in the valve.

First connector 5 can facilitate being detachably connected for gas-charging connection and the charge gun, second connection Part 1 can facilitate the connection of gas-charging connection with the inflating port to aeration vessel, and the valve can control the third interface Opening and closing, can close in gas replenishment process, guarantee air-tightness, stability and the efficiency of inflation, can open in aborting procedure, Make to be discharged to the gas in aeration vessel by second interface and third interface.

In some embodiments of the utility model, first connector 5 includes casing, described sleeve pipe from its axial the One end to its axial second end successively includes linkage section, limit section and spool section；The first of the linkage section and the tee tube 4 A mouthful of sealing connection；Stabilizer blade is equipped in the limit section；First interface is formed in the spool section；The spool section includes along remote The direction first segment, second segment and the third section that set gradually from the limit section, the first segment, the second segment and described The internal diameter of third section, which is sequentially reduced, keeps the inner wall of the spool section stepped；Spool 6, the spool 6 are equipped in described sleeve pipe Including stem and core cap 40, the stem runs through the stabilizer blade, the excircle of the core cap 40 far from one end of the core cap 40 Face is connect with the inner peripheral surface of the third section, the first sealing ring is equipped between the stem and the second segment, on the stem It is arranged with the first elastic component 37, the both ends of first elastic component 37 axial direction with the stabilizer blade and first sealing ring respectively The end face of first end offsets, the end face of the axial second end of the first sealing ring axial first end with the third section respectively End face connected with the end face of the axial first end of the core cap 40, the stem, which is equipped with, is detached from institute for limiting the stem State the stop collar of stabilizer blade.

Spool 6 in first connector 5 can control the opening and closing of first connector 5, under natural conditions, due to The elastic force of first elastic component 37 acts on, and the cooperation of described sleeve pipe, the spool 6 and first sealing ring can guarantee the first company Fitting 5 is closed, i.e., tee tube 4 cannot be connected to by the first connector 5 with external environment；It is inside when applying to the spool 6 When thrust, first elastic component 37, which is pressurized, to be shunk, and first sealing ring is under the thrusting action of core cap 40, therewith to inner sleeve Translation in cylinder 12, when between the axial second end of the core cap 40 and the axial first end of the third section there are when gap, then the It can be by the gap between the first sealing ring 2 and third section and the gap between core cap 40 and second segment and outer inside a connection piece 5 Portion's connection, the tee tube 4 can be connected to by the first connector 5 with external environment at this time, described when removing the thrust First sealing ring and the core cap 40 restPose under the action of the first elastic component 37, and first connector 5 restores To closed state；It adjusts very convenient, and is conveniently used cooperatively with charge gun.

In some embodiments of the utility model, second connector 1 is that screw thread screws pipe, and the screw thread screws pipe The outer circumference surface of axial first end connect with the inner circumferential thread of second mouth of the tee tube 4, the screw thread screws The outer circumference surface of the axial second end of pipe is equipped with the external screw thread to match with the internal screw thread of the inflating port to aeration vessel；The spiral shell Line, which screws, forms the second interface in the axial second end of pipe.

Threaded connection can guarantee that the connection air-tightness of the second connector 1 and tee tube 4 and the second connector 1 are filled with band The connection air-tightness of gas container.

In some embodiments of the utility model, the screw thread screws pipe equipped with the first annular projection 38, and described first Annular projection 38 is set to the screw thread and screws the axial first end of pipe and between the screw thread screws the axial second end of pipe, and described the The end face of the axial first end for screwing pipe far from the screw thread of one annular projection 38 is equipped with annular groove 39, the annular groove The second sealing ring 2 is equipped in 39；

The outer wall of first annular projection 38 is equipped with rotating handles 3, and the rotating handles 3 are along first annular projection 38 are arranged radially.

When second connector 1 when aeration vessel with connecting, the annular groove 39 and the second sealing ring 2 are towards institute It states to aeration vessel, and after the second connector 1 after aeration vessel with connecting, second sealing ring 2 holds with described wait inflate The end face of the inflating port of device connects, and further improves the second connector 1 and the air-tightness after aeration vessel is connect.

In some embodiments of the utility model, the charge gun component includes shell 14, and the shell 14 is cylindrical in shape； It is equipped with the second annular projection between the axial first end of the shell 14 and its axial second end, is set on second annular projection There are first through hole and the second through-hole, the first through hole and second through-hole are coaxially disposed and connect in the shell 14 It is logical, it is equipped with closeouts 16 in the first through hole, is equipped with gas source connector 30, the gas source connector 30 in second through-hole The 5th interface of interior formation；The axial first end of the shell 14 be equipped with first connector 5 match from sealing assembly, institute It states and forms the 4th interface from sealing assembly；It is described from sealing assembly and institute that the axial first end of the shell 14 is externally provided with control State the wrench assembly of the first connector 5 connection；The on off mechanism includes the core valve module in the shell 14 and is set to The axial second end of the shell 14 and flexible so that the 4th interface connects with the described 5th for controlling the core valve module Mouth connection or disconnected rocker assembly.

The gas source connector 30 can be attached with gas source by forms such as pipelines, the closeouts 16 to shell 14 into Row blocks, and prevents gas leakage, when if desired safeguarding, can take out closeouts 16, to safeguarding inside shell 14；Gas source passes through gas It is connected to inside source connector 30 and the shell 14；It is described can be realized from sealing assembly it is detachable with first connector 5 Connection, very convenient, the wrench assembly can control being detachably connected from sealing assembly and first connector 5, It is arranged outside shell 14, and operation is very convenient；The core valve module being arranged in the shell 14 can be by described in extension and contraction control The connected state of four interfaces and the 5th interface, when contracting namely under natural conditions, the 4th interface and the 5th interface are not connected to, Forward extending out Shi Zeke makes the 4th interface and the 5th orifice, before described spool 6 from sealing assembly When by jacking force, connection can be achieved inside and outside first connector 5, when first connector 5 and the self-sealing joint 34 When connection, under the core valve module stretching state can to the spool 6 apply jacking force, at this time gas source connector 30 and it is described from Sealing joint 34 is connected to, while self-sealing joint 34 is also connected to in the first connector 5, it is achieved that gas source in aeration vessel Connection；The rocker assembly can control the flexible of new valve module outside shell 14, and the state of ensure that is cut Both flexibility and ease for operation during changing, the new valve module and the rocker assembly form the on off mechanism, i.e., Gas source and the connection situation to aeration vessel can be controlled by cooperation, this is then control whether inflation.

In some embodiments of the utility model, it is described from sealing assembly include self-sealing joint 34 and be sheathed on it is described self-styled Outer sleeve 36 on connector 34；The axial first end of the self-sealing joint 34 be inserted into the axial second end of the shell 14 and The inner wall of the axial second end of the outer wall of the axial first end of the self-sealing joint 34 and the shell 14 matches and the company of sealing It connects；The outer wall of the self-sealing joint 34 be equipped with third annular projection, the inner wall of the axial first end of the outer sleeve 36 with it is described The outer wall of third annular projection connects, and the inner wall of the outer sleeve 36 is equipped with fourth annular protrusion, the fourth annular protrusion Inner wall is connect with the outer wall of the axial second end of the self-sealing joint 34, is arranged with the second elastic component on the self-sealing joint 34, The both ends of second elastic component are convex with the end face of the axial second end of the third annular projection and the fourth annular respectively The end face of the axial first end risen offsets；The axial second end of the self-sealing joint 34 extends radially through described equipped at least two The steel ball hole of self-sealing joint 34, the steel ball hole is interior to be equipped with steel ball 33；The outer wall of the axial second end of the self-sealing joint 34 is set There is the first annular recess, is equipped with the first retaining ring in first annular recess, the axial second end of the fourth annular protrusion End face and first retaining ring offset to limit the outer sleeve 36 and be detached from the self-sealing joint 34；The third annular projection, The steel ball hole and first annular recess along the self-sealing joint 34 axial first end to the direction of its axial second end It sets gradually.

The outer sleeve 36 can be slided outside self-sealing joint 34, when the second elastic component in the raw when, it is described The inner wall of fourth annular protrusion offsets with the steel ball 33, and the fourth annular protrusion is in the elastic force of the second elastic component and first It is in equilibrium state under the limitation of ring washer 35, when making its axially compressed second elastic component to 36 applied force of outer sleeve Square motion when, the inner wall of the fourth annular protrusion is detached from the steel ball 33, and the steel ball 33 can be along described from seal structure Radial outward movement, until offseting with the inner wall of the outer sleeve 36；After removal is to the power of outer sleeve 36, the outer sleeve 36 Above-mentioned equilibrium state can be restored under the elastic force of the second elastic component.It can be realized in the axial movement of outer sleeve 36 self-styled Component directly connect and dismantles with the first connector 5, very convenient, simple and convenient.

In some embodiments of the utility model, the inner wall of the shell 14 is equipped with the second annular recess, and described second Third sealing ring 11, the axial first end of the inner wall of the third sealing ring 11 and the self-sealing joint 34 are equipped in annular recess Outer wall connection.

The third sealing ring 11 can guarantee sealed connection of the shell 14 between self-sealing joint 34, the gas after ensure that connection Close property, prevents the gas of gas source to charge gun outward leakage.

In some embodiments of the utility model, the outer wall of the limit section is equipped with the to match with the steel ball 33 Three annular recess.

Front has described the operating method from sealing assembly, i.e., is realized by the axial movement of outer sleeve 36 and connected with first The connection and disassembly of fitting 5 will specifically pass through the cooperation of steel ball 33 and third annular recess.Connect first connector 5 with When from sealing assembly, described sleeve pipe is inserted into described self-styled by the outer sleeve 36 to the compression rectangular translation of the second elastic component first In connector 34, at this time steel ball 33 by casing thrust can along shell 14 radial outward movement as the outer sleeve 36 inner wall It offsets, the steel ball 33 is just opposite with the third annular recess after described sleeve pipe is moved to extreme position, then will removal To the power of outer sleeve 36, outer sleeve 36 restores balance under the elastic force effect of the second elastic component, i.e., the described fourth annular protrusion Inner wall offsets with the steel ball 33, and steel ball 33 is also into limiting described sleeve pipe in the third annular recess Position, this completes first connectors 5 and the connection from sealing assembly, after installation, the core cap of first connector 5 40 and fittings opposite with the core valve module, the core valve module applies to the first connector 5 core cap 40 if stretching out at this time Interior thrust then completes the connection of the inside and outside of the first connector 5.When dismounting, compression institute equally is applied to outer sleeve 36 The power for stating the second elastic component makes the fourth annular protrusion release the limitation to steel ball 33, then steel ball 33 is relieved to described the The limitation of three annular recess, takes out casing at this time, then removes the power to outer sleeve 36, this completes dismountings.Pacify installation and dismantling It is time saving and energy saving except all very convenient simple, and air-tightness is good after connecting, connective stability is good.

In some embodiments of the utility model, the inner wall of the self-sealing joint 34 is equipped with fourth annular groove, described The 4th sealing ring 7 is equipped in fourth annular groove；When the first interface is connect with the 4th interface, the 4th sealing ring 7 inner wall and the outer wall of the third section are tightly connected；The steel ball hole and the fourth annular groove are along the self-sealing joint The direction of 34 axial first end to its axial second end is set gradually.

4th sealing ring 7 further improves gas when first connector 5 is connect with the self-sealing joint 34 Close property, prevents gas leakage.

In some embodiments of the utility model, the core valve module includes sleeve 12, in the sleeve 12 Thimble 31, thimble back seat 28 and pressure core 27；The axial second end of the sleeve 12 runs through axial the first of the self-sealing joint 34 The inner wall of the end face at end, the outer wall of the axial second end of the sleeve 12 and the axial first end of the self-sealing joint 34, which seals, to be connected It connects；The axial second end of the thimble back seat 28 is equipped with centre hole, and the axial first end of the thimble 31 is set to the centre hole Interior, the thimble 31 is connect with the thimble back seat 28 by the first pin shaft 29, and first pin shaft 29 is along the thimble 31 It is arranged radially；The axial first end of the pressure core 27 is equipped with the first ear, and first ear is equipped with the first pin shaft hole, first pin It is equipped with bearing 23 in axis hole, is equipped with the second pin shaft 26 in the bearing 23；The end face of the axial second end of the pressure core 27 and institute Thimble back seat 28 is stated to offset；The outer wall of the axial first end of the pressure core 27 is equipped with the 5th annular projection.

Thimble 31 is its front end, the core cap for the first connector 5 described in pushing tow that can travel forward in the core valve module 40 open first connector 5, make its inside and outside connection.The thimble 31 is connected as one with the thimble back seat 28, described Pressure core 27 offsets with the thimble back seat 28, can be sequentially completed pressure core 27,28 and of thimble back seat by applying thrust to pressure core 27 The Forward of thimble 31.

In some embodiments of the utility model, it is cyclic annular recessed that the inner wall of the axial first end of the sleeve 12 is equipped with the 5th The axial first end of slot, the 5th annular recess is equipped with the 6th annular recess；Second gear is equipped in 6th annular recess Circle 15, is equipped with seal receptacle bowl 13 in the 5th annular recess, the end face of the axial first end of the seal receptacle bowl 13 with it is described The connection of second retaining ring 15, the axial second end of the end face of the axial second end of the seal receptacle bowl 13 and the 5th annular recess Side wall connection；The seal receptacle bowl 13 include endless loop, set on the endless loop axial first end outer wall the 6th ring Shape protrusion and set on the endless loop axial second end outer wall the 7th annular projection, the 6th annular projection and described The 5th sealing ring is equipped between 7th annular projection, the inner wall of the 5th sealing ring and the endless loop are tightly connected, and described the The bottom of the outer wall of five sealing rings and the 5th annular recess is tightly connected；The thimble 31 is equipped with the 8th annular projection, described The axial first end of 8th annular projection and the axial second end of the seal receptacle bowl 13 offset.

8th annular projection is connect with the offseting for seal receptacle bowl 13, it is ensured that the core valve module nature Under, the 4th interface is not connected to the 5th interface, ensure that air-tightness.

In some embodiments of the utility model, the thimble 31 is equipped with the second pin shaft hole radially, the top Needle back seat 28 is equipped with the 9th annular projection, and the 9th annular projection is equipped with after the 9th annular projection and the thimble The third pin shaft hole of seat 28, first pin shaft 29 run through second pin shaft hole and the third pin shaft hole；9th ring Shape protrusion is equipped with the 7th annular recess, and the of the axial movement for limiting first pin shaft 29 is equipped in the 7th annular recess Three retaining rings 18.

The third retaining ring 18 can prevent first pin shaft 29 from second pin shaft hole and the third pin shaft hole Interior abjection improves the connective stability of thimble 31 and thimble back seat 28 and the transmitting stability of power between the two.

In some embodiments of the utility model, it is arranged with third elastic component 17 on the thimble back seat 28, described The axial first end of three elastic components 17 offsets with the 9th annular projection, the axial second end of the third elastic component 17 and institute The second retaining ring 15 is stated to offset.

The third elastic component 17 can not only apply the power to its axial first extreme direction, institute to the thimble back seat 28 The first end power in the axial direction that states thimble 31 also and will receive the transmitting of thimble back seat 28, can further improve the 8th annular projection with it is described The connection air-tightness of seal receptacle bowl 13；And third elastic component 17 can guarantee that restoring reset condition for new valve module provides reply Power.

In some embodiments of the utility model, it is recessed that the inner wall of the self-sealing joint 34 is equipped at least one the 8th ring-type Slot, the 8th annular recess is interior to be equipped with the 6th sealing ring 10, and the inner wall and the sleeve 12 of the 6th sealing ring 10 seal Connection, the outer wall of the 6th sealing ring 10 and the bottom of the 8th annular recess are tightly connected.

6th sealing ring 10 improves the air-tightness of the self-sealing joint 34 and the sleeve 12, prevents gas leakage.

In some embodiments of the utility model, the rocker assembly includes rocker bracket, third pin shaft 24 and rocking bar； The rocker bracket includes stand tube 21 and bracket ear, and the axial second end of the stand tube 21 runs through the axial direction of the shell 14 The inner wall of the end face of one end, the outer wall of the stand tube 21 and the shell 14 is tightly connected；Axial the of the stand tube 21 The end face at two ends is connect with the 9th annular projection；It is cyclic annular convex that the inner wall of the axial second end of the stand tube 21 is equipped with the tenth It rises, the inner wall of the tenth annular projection and the outer wall of the thimble back seat 28 are tightly connected, the pressure core 27 and the thimble The 4th elastic component 19 is arranged on back seat 28, axial one end and the 5th annular projection of the 4th elastic component 19 offset, The axial second end of 4th elastic component 19 offsets with the tenth annular projection；The bracket ear includes and the stand tube Two parallel plates of 21 axial first end connection, two plates are respectively equipped with the 4th mutually coaxial pin shaft hole, The rocking bar includes plectane 25 and the operating stick that connect with the periphery of the plectane 25, and the plectane 25 is equipped with eccentric plate Hole, the third pin shaft 24 extend through the 4th pin shaft hole and the plate hole, and the side of the plectane 25 is equipped with locating rod, The locating rod offsets with second pin shaft 26.

The plectane 25 rotates under the action of operating stick around the third pin shaft 24, and the locating rod is to described second Pin shaft 26 applies thrust, and second pin shaft 26 is moved to axial second extreme direction of the shell 14, therefore the pressure core 27, The thimble back seat 28 and the thimble 31 are also moved to the axial second segment direction of shell 14, at this time the 8th annular projection It is detached from the seal receptacle bowl 13, gap occurs between the two, and then realize the connection of the 4th interface and the 5th interface, together 31 pushing tow core cap 40 of Shi Dingzhen opens the first connector 5, and then realizes gas source and the connection to aeration vessel, that is, is filled Gas.Operation is easily, also very simple, highly-safe；Greatly reduce labor intensity.

In some embodiments of the utility model, the inner wall of the shell 14 is equipped with the 9th annular recess, and the described 9th The 7th sealing ring is equipped in annular recess, the inner wall of the 7th sealing ring and the outer wall of the stand tube 21 are tightly connected, institute The bottom of the outer wall and the 9th annular recess of stating the 7th sealing ring is tightly connected.

7th sealing ring improves the connection air-tightness of the stand tube 21 with the shell 14, it is therefore prevented that described the Four interfaces are in communication with the outside by the axial first end of the shell 14, and gas leakage occurs, further improves the peace of gas replenishment process Quan Xing.

In some embodiments of the utility model, it is recessed that the inner wall of the stand tube 21 is equipped at least one the tenth ring-type Slot, is equipped with the 8th sealing ring in the tenth annular recess, the inner wall of the 8th sealing ring and the thimble back seat 28 it is outer Wall connection, the outer wall of the 8th sealing ring and the bottom of the tenth annular recess are tightly connected.

8th sealing ring improves the connection air-tightness of the stand tube 21 and the thimble back seat 28, it is therefore prevented that institute It states the 4th interface to be in communication with the outside by the axial first end of the shell 14, gas leakage occurs, further improves gas replenishment process Safety.

In some embodiments of the utility model, the shell 14 and the stand tube 21 are by being sheathed on the two outer wall On helical fastener 20 connect.

Helical fastener 20 can be hex nut, be connected through a screw thread and the shell 14 and the stand tube 21 can be improved Connective stability and air-tightness.

In some embodiments of the utility model, the axial first end outer wall of the stand tube 21 is arranged with buffer gasket 22, the axial first end of the buffer gasket 22 is concordant with the axial first end of the stand tube 21, the buffer gasket 22 Axial second end is connect with the axial first end of the helical fastener 20.

The buffer gasket 22 can prevent friction of the operating stick to stand tube 21, the safety of protective cradle pipe 21.

In some embodiments of the utility model, the wrench assembly includes spanner fixed frame 8, the pin of spanner the 32, the 4th Axis 9 and sliding bar；End face and the third ring of the one end of the spanner fixed frame 8 set on the axial second end of the shell 14 Between the end face of the axial first end of shape protrusion, the other end of the spanner fixed frame 8 is equipped with vertical with the axis of the shell 14 The 5th pin shaft hole, the 4th pin shaft 9 run through the 5th pin shaft hole；The spanner 32 includes handle and connects with the handle The parallel spanner ear of two connect, one end of the spanner ear are connect with the handle, and the other end of the spanner ear is equipped with the Six pin shaft holes, the 4th pin shaft 9 run through the 5th pin shaft hole and the 6th pin shaft hole；The spanner ear is equipped with spanner Hole, the outer wall of the self-sealing joint 34 set there are two respectively with the matched spanner connecting column of the driving hole of two spanner ears.

The handle is in 9 rotation process of the 4th pin shaft, and the spanner ear also rotates with it, the spanner of spanner ear Spanner connecting column in hole also moves therewith, can drive axial first end motion of the outer sleeve 36 to the shell 14, Can first connector 5 with it is described connect from sealing assembly when, control the movement of the outer sleeve 36 with handle, it is convenient can It leans on, labor intensity reduces significantly.

Based on same invention thinking, the utility model additionally provides a kind of inflation pressure maintaining test macro of container, including institute The air charging system stated.

It should be noted that, in this document, the relational terms of such as " first " and " second " or the like are used merely to one A entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it Between there are any actual relationship or orders.

Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations； Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc. With replacement；And these are modified or replaceed, various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution The spirit and scope of scheme.

Claims (22)

1. a kind of air charging system, which is characterized in that including gas-charging connection and charge gun；

The gas-charging connection is equipped with interconnected first interface, second interface and third interface；

The charge gun is equipped with the 4th interface, the 5th interface and the connection for controlling the 4th interface and the 5th interface The on off mechanism of state；

The first interface and the 4th interface are detachably connected.

2. a kind of air charging system according to claim 1, which is characterized in that the gas-charging connection include tee tube (4), with The first connector (5) of first mouth sealing connection of the tee tube (4), second mouth sealing with the tee tube (4) The second connector (1) of connection and the valve being connected to the sealing of the third mouth of the tee tube (4)；

The third interface is formed in the valve.

3. a kind of air charging system according to claim 2, which is characterized in that first connector (5) includes casing, institute Casing is stated successively to include linkage section, limit section and spool section from its axial first end to its axial second end；

The linkage section is connected to the sealing of first mouth of the tee tube (4)；

Stabilizer blade is equipped in the limit section；

First interface is formed in the spool section；The spool section includes the set gradually along the direction far from the limit section One section, second segment and third section, the internal diameter of the first segment, the second segment and the third section, which is sequentially reduced, makes the spool The inner wall of section is stepped；

Spool (6) are equipped in described sleeve pipe, the spool (6) includes stem and core cap (40), and the stem is far from the core cap (40) stabilizer blade is run through in one end, and the outer circumference surface of the core cap (40) is connect with the inner peripheral surface of the third section, described It is equipped with the first sealing ring between stem and the second segment, is arranged with the first elastic component (37) on the stem, first elasticity End face of the both ends of part (37) respectively with the axial first end of the stabilizer blade and first sealing ring offsets, first sealing The end face of the axial second end of circle respectively with the end face of the axial first end of the third section and the core cap (40) axial the The end face of one end connects, and the stem is equipped with the stop collar for being detached from the stabilizer blade for limiting the stem.

4. a kind of air charging system according to claim 2, which is characterized in that second connector (1) screws for screw thread Pipe, the screw thread screw the inner peripheral surface spiral shell of the outer circumference surface of the axial first end of pipe and second mouth of the tee tube (4) Line connection, the outer circumference surface that the screw thread screws the axial second end of pipe are equipped with the internal screw thread phase with the inflating port to aeration vessel Matched external screw thread；

The screw thread, which screws, forms the second interface in the axial second end of pipe.

5. a kind of air charging system according to claim 4, which is characterized in that it is cyclic annular convex equipped with first that the screw thread screws pipe It rises (38), first annular projection (38) is set to that the screw thread screws the axial first end of pipe and the screw thread screws the axis of pipe To between second end, the end face of the axial first end for screwing pipe far from the screw thread of first annular projection (38) is equipped with annular Groove (39), the annular groove (39) is interior to be equipped with the second sealing ring (2)；

The outer wall of first annular projection (38) is equipped with rotating handles (3), and the rotating handles (3) are cyclic annular convex along described first Play being arranged radially for (38).

6. a kind of air charging system according to claim 3, which is characterized in that the charge gun component includes shell (14), The shell (14) is cylindrical in shape；

The second annular projection is equipped between the axial first end of the shell (14) and its axial second end, described second is cyclic annular convex Rise and be equipped with first through hole and the second through-hole, the first through hole and second through-hole be coaxially disposed and with the shell (14) connection in, the first through hole is interior to be equipped with closeouts (16), is equipped with gas source connector (30) in second through-hole, described The 5th interface is formed in gas source connector (30)；

The axial first end of the shell (14) be equipped with first connector (5) match from sealing assembly, it is described self-styled The 4th interface is formed in component；

The axial first end of the shell (14) is externally provided with described in control and pulls from sealing assembly with what first connector (5) connect Hand component；

The on off mechanism includes the core valve module in the shell (14) and the axial direction second for being set to the shell (14) It holds and flexible so that the 4th interface and the 5th orifice or disconnected rocking bar for controlling the core valve module Component.

7. a kind of air charging system according to claim 6, which is characterized in that it is described from sealing assembly include self-sealing joint (34) With the outer sleeve (36) being sheathed on the self-sealing joint (34)；

The axial first end of the self-sealing joint (34) is inserted into the axial second end of the shell (14) and the self-sealing joint (34) outer wall of axial first end and the inner wall of the axial second end of the shell (14) match and are tightly connected；

The outer wall of the self-sealing joint (34) be equipped with third annular projection, the inner wall of the axial first end of the outer sleeve (36) with The outer wall of the third annular projection connects, and the inner wall of the outer sleeve (36) is equipped with fourth annular protrusion, the fourth annular The inner wall of protrusion is connect with the outer wall of the axial second end of the self-sealing joint (34), and the is arranged on the self-sealing joint (34) Two elastic components, the both ends of second elastic component respectively with the end face of the axial second end of the third annular projection and described The end face of the axial first end of four annular projections offsets；

The axial second end of the self-sealing joint (34) is equipped at least two steel balls for extending radially through the self-sealing joint (34) Hole, the steel ball hole is interior to be equipped with steel ball (33)；

The outer wall of the axial second end of the self-sealing joint (34) is equipped with the first annular recess, is equipped in first annular recess First retaining ring (35), the end face of the axial second end of the fourth annular protrusion and first retaining ring (35) offset to limit It states outer sleeve (36) and is detached from the self-sealing joint (34)；

The axial direction first of the third annular projection, the steel ball hole and first annular recess along the self-sealing joint (34) The direction to its axial second end is held to set gradually.

8. a kind of air charging system according to claim 7, which is characterized in that the inner wall of the shell (14) is equipped with the second ring Shape groove is equipped with third sealing ring (11) in second annular recess, the inner wall of the third sealing ring (11) and it is described from The outer wall of the axial first end of sealing joint (34) connects.

9. a kind of air charging system according to claim 7, which is characterized in that the outer wall of the limit section is equipped with and the steel The third annular recess that ball (33) matches.

10. a kind of air charging system according to claim 7, which is characterized in that the inner wall of the self-sealing joint (34) is equipped with Fourth annular groove, the fourth annular groove is interior to be equipped with the 4th sealing ring (7)；

When the first interface is connect with the 4th interface, the inner wall of the 4th sealing ring (7) and the third section it is outer Wall is tightly connected；

The steel ball hole and the fourth annular groove along the self-sealing joint (34) axial first end to its axial second end Direction set gradually.

11. a kind of air charging system according to claim 7, which is characterized in that the core valve module includes sleeve (12), sets In thimble (31), thimble back seat (28) and pressure core (27) in the sleeve (12)；

The axial second end of the sleeve (12) is through the end face of the axial first end of the self-sealing joint (34), the sleeve (12) outer wall of axial second end and the inner wall of the self-sealing joint (34) axial first end are tightly connected；

The axial second end of the thimble back seat (28) is equipped with centre hole, and the axial first end of the thimble (31) is set to the top In pin hole, the thimble (31) is connect with the thimble back seat (28) by the first pin shaft (29), the first pin shaft (29) edge Thimble (31) are arranged radially；

The axial first end of pressure core (27) is equipped with the first ear, and first ear is equipped with the first pin shaft hole, first pin shaft Bearing (23) are equipped in hole, are equipped with the second pin shaft (26) in the bearing (23)；The end of the axial second end of pressure core (27) Face offsets with the thimble back seat (28)；The outer wall of the axial first end of pressure core (27) is equipped with the 5th annular projection.

12. a kind of air charging system according to claim 11, which is characterized in that the axial first end of the sleeve (12) Inner wall is equipped with the 5th annular recess, and the axial first end of the 5th annular recess is equipped with the 6th annular recess；

The second retaining ring (15) are equipped in 6th annular recess, are equipped with seal receptacle bowl (13) in the 5th annular recess, institute The end face for stating the axial first end of seal receptacle bowl (13) is connect with second retaining ring (15), the axial direction of the seal receptacle bowl (13) The end face of second end is connect with the side wall of the axial second end of the 5th annular recess；

The seal receptacle bowl (13) include endless loop, set on the endless loop axial first end outer wall the 6th annular projection With the 7th annular projection of the outer wall for the axial second end for being set to the endless loop, the 6th annular projection and the 7th ring The 5th sealing ring is equipped between shape protrusion, the inner wall and the endless loop of the 5th sealing ring are tightly connected, the 5th sealing The bottom of the outer wall of circle and the 5th annular recess is tightly connected；

The thimble (31) is equipped with the 8th annular projection, the axial first end of the 8th annular projection and the seal receptacle bowl (13) axial second end offsets.

13. a kind of air charging system according to claim 12, which is characterized in that the thimble (31) is equipped with radially Second pin shaft hole, the thimble back seat (28) are equipped with the 9th annular projection, and the 9th annular projection, which is equipped with, runs through the described 9th The third pin shaft hole of annular projection and the thimble back seat (28), first pin shaft (29) run through second pin shaft hole and institute State third pin shaft hole；

9th annular projection is equipped with the 7th annular recess, is equipped in the 7th annular recess and limits first pin shaft (29) the third retaining ring (18) of axial movement.

14. a kind of air charging system according to claim 13, which is characterized in that be arranged on the thimble back seat (28) Three elastic components (17), axial first end and the 9th annular projection of the third elastic component (17) offset, the third bullet The axial second end of property part (17) offsets with second retaining ring (15).

15. a kind of air charging system according to claim 11, which is characterized in that the inner wall of the self-sealing joint (34) is equipped with At least one the 8th annular recess, the 8th annular recess is interior to be equipped with the 6th sealing ring (10), the 6th sealing ring (10) Inner wall and the sleeve (12) be tightly connected, the bottom of the outer wall and the 8th annular recess of the 6th sealing ring (10) is close Envelope connection.

16. a kind of air charging system according to claim 13, which is characterized in that the rocker assembly include rocker bracket, Third pin shaft (24) and rocking bar；

The rocker bracket includes stand tube (21) and bracket ear, and the axial second end of the stand tube (21) runs through the shell (14) end face of axial one end, the outer wall of the stand tube (21) and the inner wall of the shell (14) are tightly connected；

The end face of the axial second end of the stand tube (21) is connect with the 9th annular projection；

The inner wall of the axial second end of the stand tube (21) be equipped with the tenth annular projection, the inner wall of the tenth annular projection with The outer wall of the thimble back seat (28) is tightly connected, and the 4th elasticity is arranged on the pressure core (27) and the thimble back seat (28) Part (19), axial one end and the 5th annular projection of the 4th elastic component (19) offset, the 4th elastic component (19) Axial second end offset with the tenth annular projection；

The bracket ear includes the two parallel plates connected with the axial first end of the stand tube (21), and two described flat Plate is respectively equipped with the 4th mutually coaxial pin shaft hole, and the rocking bar includes plectane (25) and connects with the periphery of the plectane (25) The operating stick connect, the plectane (25) are equipped with eccentric plate hole, and the third pin shaft (24) extends through the 4th pin shaft hole It is equipped with locating rod with the side of the plate hole, the plectane (25), the locating rod offsets with second pin shaft (26).

17. a kind of air charging system according to claim 16, which is characterized in that the inner wall of the shell (14) is equipped with the 9th Annular recess, the 9th annular recess is interior to be equipped with the 7th sealing ring, the inner wall of the 7th sealing ring and the stand tube (21) outer wall is tightly connected, and the outer wall of the 7th sealing ring and the bottom of the 9th annular recess are tightly connected.

18. a kind of air charging system according to claim 16, which is characterized in that the inner wall of the stand tube (21) is equipped with extremely Few tenth annular recess, the tenth annular recess is interior to be equipped with the 8th sealing ring, the inner wall of the 8th sealing ring and institute The outer wall connection of thimble back seat (28) is stated, the outer wall of the 8th sealing ring and the bottom of the tenth annular recess are tightly connected.

19. a kind of air charging system according to claim 16, which is characterized in that the shell (14) and the stand tube (21) helical fastener (20) connection by being sheathed on the two outer wall.

20. a kind of air charging system according to claim 19, which is characterized in that the axial first end of the stand tube (21) Outer wall is arranged with buffer gasket (22), the axial first end of the buffer gasket (22) and the axial direction first of the stand tube (21) Hold level with both hands together, the axial second end of the buffer gasket (22) is connect with the axial first end of the helical fastener (20).

21. a kind of air charging system according to claim 11, which is characterized in that the wrench assembly includes spanner fixed frame (8), spanner (32), the 4th pin shaft (9) and sliding bar；

One end of the spanner fixed frame (8) is convex set on the end face of the axial second end of the shell (14) and the third ring-type Between the end face of the axial first end risen, the other end of the spanner fixed frame (8) is equipped with vertical with the axis of the shell (14) The 5th pin shaft hole, the 4th pin shaft (9) run through the 5th pin shaft hole；

The spanner (32) include handle and with the handle connection two parallel spanner ears, one end of the spanner ear with The handle connection, the other end of the spanner ear are equipped with the 6th pin shaft hole, and the 4th pin shaft (9) runs through the 5th pin shaft Hole and the 6th pin shaft hole；The spanner ear be equipped with driving hole, the outer wall of the self-sealing joint (34) set there are two respectively with The matched spanner connecting column of the driving hole of two spanner ears.

22. a kind of inflation pressure maintaining test macro of container, which is characterized in that fill including claim 1 to 21 is described in any item Device of air.