CN209340094U - A kind of air charging system - Google Patents

Abstract

The utility model discloses a kind of air charging systems, comprising: pedestal；Upper cover, setting includes the first stack shell of the first compression chamber and the second compression chamber between the upper cover and the pedestal, wherein second compression chamber is connected to one first outer tube；Switching valve, it is set in a ventilation chamber of the upper cover, the filling channel that the ventilation chamber one-way conduction is set to the upper cover in one, whether the utility model can connect filling channel come the compression chamber controlled by adjusting the different location of switching valve, the filling channel and inflated device are connected directly to realize the inflation to inflated device, so as to gradually reduce the compression chamber being connected with filling channel in gas replenishment process, it allows users to gradually rise and gradually decrease the quantity of the compression chamber for inflation with the air pressure inside interior air charging system.

Description

A kind of air charging system

Technical field

The utility model relates to a kind of technologies in inflator pump field, more specifically, being related to a kind of air charging system.

Background technique

Inflator pump (hand-pulled inflator) can carry out bidirectional inflating, i.e. piston in stack shell is moving up stroke and moving down stroke Inflation can be realized in two strokes.When the air pressure in inflated device is higher, user be difficult to lift inflation handle with Realization is inflated the device in moving up stroke.And existing inflator pump, user can not according to circumstances select moving up Stroke moves down stroke to be inflated.

Utility model content

In view of the problems of the existing technology, the purpose of this utility model is to provide a kind of air charging systems, can pass through Whether the different location for adjusting switching valve connects filling channel come the compression chamber controlled, and the filling channel and inflated device are straight It connects and is connected to realize the inflation to inflated device, be connected so as to gradually be reduced in gas replenishment process with filling channel Compression chamber, allow users to gradually decrease the pressure for inflation as the air pressure inside interior air charging system gradually rises The quantity of contracting chamber.

One aspect according to the present utility model provides a kind of air charging system, comprising:

Pedestal；

Upper cover, setting includes first of the first compression chamber and the second compression chamber between the upper cover and the pedestal Body, wherein second compression chamber is connected to one first outer tube；

Switching valve is set in a ventilation chamber of the upper cover, and the ventilation chamber one-way conduction is set to institute in one State the filling channel of upper cover；

Wherein, the ventilation chamber is connected to first outer tube by one first connecting hole, and the ventilation chamber passes through One second connecting hole is connected to a drainage chamber for being set to the upper cover, and first compression chamber one-way conduction draws in described Chamber is flowed, the ventilation chamber is connected to first compression chamber by a third connecting hole；

When the switching valve is located at the first turned position, first connecting hole and second connecting hole and the inflation Channel is connected, and the third connecting hole is by the switching valve closure；

When the switching valve is located at the second turned position, first connecting hole is connected with the filling channel, described Second connecting hole is connected by the switching valve closure, the third connecting hole with the exhaust outlet of the switching valve.

Preferably, the air charging system further include:

The both ends of second stack shell and the second outer tube, second stack shell are connected with the pedestal and the upper cover respectively, institute The both ends for stating the second outer tube are connected with the pedestal and the upper cover respectively；

One-way piston is set in second stack shell, and a third pressure is formed between the one-way piston and the pedestal Contracting chamber, the third compression chamber are connected by second outer tube with the filling channel；

When the switching valve is located at third turned position, first connecting hole, second connecting hole and described Three connecting holes are connected with the exhaust outlet of the switching valve.

Preferably, the switching valve includes:

Cylindrical body, one end are equipped with the exhaust outlet；

First air intake duct is set in the cylindrical body, when the switching valve is located at the first turned position described in One connecting hole and second connecting hole are connected by first air intake duct with the filling channel；

Second air intake duct is set in the cylindrical body, when the switching valve is located at the second turned position described in One connecting hole is connected by second air intake duct with the filling channel；

First row air flue is set in the cylindrical body, when the switching valve is located at the second turned position described in Three connecting holes are connected by the first row air flue with the exhaust outlet of the switching valve.

Preferably, the switching valve further include:

Second row air flue is set in the cylindrical body of the switching valve, when the switching valve is located at third turned position, First connecting hole, second connecting hole and the third connecting hole pass through the second row air flue and the switching The exhaust outlet of valve is connected.

Preferably, the side wall of the cylindrical body offer the first air vent being connected with first air intake duct and with The second air vent that first air intake duct is connected；

Wherein, when the switching valve is located at first turned position, first air vent and first connecting hole Conducting, second air vent are connected with second connecting hole.

Preferably, the side wall of the cylindrical body offer the third air vent being connected with second air intake duct and with The 4th air vent that the first row air flue is connected；

Wherein, when the switching valve is located at second turned position, the third air vent and first connecting hole Conducting, the 4th air vent are connected with the third connecting hole.

Preferably, the side wall of the cylindrical body is equipped with the 5th air vent, the 6th air vent and the 7th air vent, described 5th air vent, the 6th air vent and the 7th air vent are connected with the second row air flue；

Wherein, when the switching valve is located at the third and goes to position, the 5th air vent and first connecting hole Conducting, the 6th air vent are connected with second connecting hole, and the 7th air vent is connected with the third connecting hole.

Preferably, the interior internal diameter greater than second stack shell of first stack shell.

Preferably, the one-way piston includes:

One-way piston ontology, the one-way piston ontology is interior to be equipped with an aspirating flutes, wherein the one-way piston ontology Equipped with one along the one-way piston ontology the air-breathing through-hole being arranged radially, the both ends of the air-breathing through-hole are respectively communicated in described The inner cavity of aspirating flutes and second stack shell；

First annular baffle is set to the outer wall of the one-way piston ontology, and is located at the separate of the air-breathing through-hole The opening side of the aspirating flutes；

Second ring baffle is set between the first annular baffle and the air-breathing through-hole, the first annular gear The outer diameter of plate is less than the outer diameter of the first annular baffle；

Wherein, an one-way sealing sealing groove is formed between the first annular baffle and second ring baffle, it is described unidirectional A sealing ring is equipped in seal groove.

Preferably, it is equipped with a bidirectional piston in first stack shell, forms institute between the bidirectional piston and the upper cover The first compression chamber is stated, forms second compression chamber between the bidirectional piston and the pedestal.

Preferably, it is equipped with the first air intake duct in first stack shell, the second air intake duct is equipped in second stack shell, it is described The both ends of first air intake duct are connected with the bidirectional piston and leader being set in first stack shell respectively, second air-breathing Pipe both ends are connected with the one-way piston and the handle respectively, first air intake duct and are set to the one first of the handle Air entry is connected, and second air intake duct is connected with one second air entry for being set to the handle.

Preferably, the switching valve includes a cylindrical body, and the cylindrical body is divided into first area and the along axial direction The side wall in two regions, the cylindrical body is equipped with the first air vent, the second air vent, third air vent, the 4th air vent, the 5th Air vent, the 6th air vent and the 7th air vent, wherein first air vent, the third air vent and described Five air vents are located at the first area and along the circumferentially distributed of the cylindrical body, second air vents, the described 4th Air vent, the 6th air vent and the 7th air vent are located at the second area.

One aspect according to the present utility model provides a kind of inflation method, is applied to an air charging system, the inflation dress The switching valve set has the first turned position, the second turned position and third turned position, and the inflation method specifically includes:

The switching valve is turned into first turned position, utilizes first in the first stack shell of the air charging system Compression chamber, the second compression chamber in first stack shell and the third compression chamber in the second stack shell are filled Gas；

The switching valve is turned into second turned position, utilizes second compression chamber in first stack shell Third compression chamber in room and second stack shell is inflated；

The switching valve is turned into the third turned position, passes through the third compression chamber in second stack shell Room is inflated.

Preferably, the internal diameter of first stack shell is greater than the internal diameter of second stack shell.

The beneficial effect of above-mentioned technical proposal is: the air charging system of the utility model, can be by adjusting switching valve not Whether the compression chamber controlled with position connects filling channel, and the filling channel and inflated device are connected directly with realization pair It is inflated the inflation of device, so as to gradually reduce the compression chamber being connected with filling channel in gas replenishment process, is made The quantity of the compression chamber for inflation can be gradually risen and gradually decrease with the air pressure inside interior air charging system by obtaining user.

Other features and advantages of the utility model and the various embodiments of the utility model structurally and operationally, will be It is described in detail referring to the drawings.It should be noted that the utility model is not limited to specific embodiments described herein.At this The purpose that these embodiments that text provides are merely to illustrate that.

Detailed description of the invention

Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model Sign, objects and advantages will become more apparent upon.

Fig. 1 is a kind of stereoscopic schematic diagram of air charging system；

Fig. 2 is the front view of the air charging system in Fig. 1；

Fig. 3 is the rearview of the air charging system in Fig. 2；

Fig. 4 is the bottom view of the air charging system in Fig. 2；

Fig. 5 is the top view of the air charging system in Fig. 2；

Fig. 6 is a kind of stereoscopic schematic diagram of upper cover；

Fig. 7 is a kind of stereoscopic schematic diagram of switching valve；

Fig. 8 is the stereoscopic schematic diagram under another visual angle of the switching valve in Fig. 7；

Fig. 9 is the cross-sectional view in the direction AA ' in Fig. 4；

Figure 10 is the enlarged diagram in the region E in Fig. 9；

Figure 11 is the region the F enlarged diagram in Fig. 9；

Figure 12 is the diagrammatic cross-section in the direction CC ' along Fig. 2；

Figure 13 is the diagrammatic cross-section of the DD ' in Fig. 5；

Figure 14 is the diagrammatic cross-section of the BB ' in Fig. 5；

Figure 15 is diagrammatic cross-section when switching valve is in the second turned position；

Figure 16 is the stereoscopic schematic diagram of the switching valve in Figure 15；

Figure 17 is the stereoscopic schematic diagram under another visual angle of the switching valve in Figure 15；

Figure 18 is diagrammatic cross-section when switching valve is in third turned position；

Figure 19 is the stereoscopic schematic diagram of the switching valve in Figure 18；

Figure 20 is a kind of flow diagram of inflation method.

List of numerals:

The 7th air vent of 1 handle 312

101 first the first stack shells of air entry 4a

102 second the first compression chamber of air entry 4a1

110 first the second compression chamber of gas circuit 4a2

120 second the second stack shells of gas circuit 4b

130 third gas circuit 4b1 third compression chamber

141 air-breathing gas circuit the first outer tubes of 5a

150 the 4th the second outer tubes of gas circuit 5b

160 the 5th gas circuit, 6 pedestal

2 upper cover, 601 first lower chamber

210 filling channel, 602 second lower chamber

The lower check valve of 211 first check valves 603 first

The lower check valve of 212 pressure gauges 604 second

220 ventilation 605 reinforcing ribs of chamber

221 first the first air intake ducts of connecting hole 7a

222 second the second air intake ducts of connecting hole 7b

223 third connecting hole, 8 bidirectional piston

230 drainage 801 bidirectional piston ontologies of chamber

Valve block in 231 second one-way valves 802 first

Valve block in 3 switching valves 803 second

301 cylindrical body, 804 first lower disc

302 first air intake duct, 805 second lower disc

303 second air intake duct, 806 air-breathing chamber

304 first row air flue, 9 one-way piston

305 second row air flue, 901 one-way piston ontology

306 first air vent, 902 aspirating flutes

307 second air vent, 903 air-breathing through-hole

The first annular baffle of 308 third air vent 904

309 the 4th air vent, 905 second ring baffle

310 the 5th air vent, 906 sealing ring

311 the 6th air vent, 907 one-way sealing sealing groove

313 exhaust outlet, 320 first area

330 second areas

From the detailed description below in conjunction with attached drawing, the feature and advantage of the utility model will be apparent.Run through Attached drawing, identical attached drawing identify respective element.In the accompanying drawings, same reference numerals are indicated generally at identical, functionally similar And/or similar element in structure.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model It clearly and completely describes, it is clear that described embodiment is only the utility model a part of the embodiment, rather than whole realities Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art are not under the premise of making the creative labor Every other embodiment obtained, fall within the protection scope of the utility model.

" first " used herein, " second " and similar word are not offered as any sequence, quantity or again The property wanted, and be used only to distinguish different component parts.The similar word such as " comprising " or "comprising" means before there is the word The element or object in face are covered the element for appearing in the word presented hereinafter or object and its are equal, and are not excluded for other elements Or object." connection " either the similar word such as " connected " is not limited to physics or mechanical connection, but can be with It is either direct or indirect including electrical connection."upper", "lower", "left", "right" etc. are only used for indicating relative position Relationship, after the absolute position for being described object changes, then the relative positional relationship may also correspondingly change.

It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can To be combined with each other.

The utility model is described in further detail in the following with reference to the drawings and specific embodiments, but not as the utility model It limits.

One aspect according to the present utility model provides a kind of air charging system.

Fig. 1 is a kind of stereoscopic schematic diagram of air charging system.Air charging system includes upper cover 2 and lower cover, upper cover 2 and lower cover it Between be provided with the first stack shell 4a and the second stack shell 4b, and the first stack shell 4a and the second stack shell 4b are disposed adjacent side by side.First One end of body 4a is connected with upper cover 2, which is connected to pedestal 6.One end of second stack shell 4b is connected to Lid 2, the second stack shell 4b other end are connected to pedestal 6.A handle 1 is additionally provided at the top of upper cover 2.First stack shell 4a and The first outer tube 5a is additionally provided between two stack shell 4b, one end of first outer tube 5a is connected to upper cover 2, and first outer tube 5a's is another End is connected to pedestal 6.The side wall of upper cover 2 is additionally provided with a switching valve 3, which rotates in upper cover 2, and can rotate To three kinds of positions, which is respectively the first turned position, the second turned position and third turned position.

Fig. 2 is the front view of the air charging system in Fig. 1.The switching valve 3 shown in Fig. 2 is located at the first turned position, cuts When changing valve 3 and being in the first turned position, air charging system is in the first modes of inflation.

Fig. 3 is the rearview of the air charging system in Fig. 2.The side of upper cover 2 being away from each other with switching valve 3 is equipped with an inflation Gas is pressed into the device to be inflated by channel 210, air charging system by the filling channel 210.Upper cover 2 and pedestal 6 it Between be additionally provided with the second outer tube 5b, one end of second outer tube 5b is connected to upper cover 2, and the other end of second outer tube 5b is connected to Pedestal 6.First stack shell 4a and the second stack shell 4b are parallel to each other, the second outer tube 5b be located at the first stack shell 4a and the second stack shell 4b it Between.

Fig. 4 is the bottom view of the air charging system in Fig. 2.Pedestal 6 shown in Fig. 5 is provided with several reinforcing ribs 605, reinforces Muscle 605 is laterally or longitudinally arranged, and can effectively reinforce the intensity of entire pedestal 6.

Fig. 5 is the top view of the air charging system in Fig. 2.Handle 1 shown in Figure 2 includes the first air entry 101 and second Air entry 102, the first air entry 101 is set to the side wall of handle 1, and the second air entry 102 is opened in the end of handle 1, and And first air entry 101 and the second air entry 102 be located at the two sides of hatching AA ', and also be located at the two of switching valve 3 Side.

Fig. 6 is a kind of stereoscopic schematic diagram of upper cover.Upper cover 2 shown in Fig. 1 is equipped with ventilation chamber 220, the ventilation chamber Inner wall in 220 is opened up by three connecting holes, respectively the first connecting hole 221, the second connecting hole 222, third connecting hole 223. First connecting hole 221 is circular through hole, and the second connecting hole 222 is square through hole, the first connecting hole 221 and the second connecting hole 222 Along the axial arranging of ventilation chamber 220, and the first connecting hole 221 is located at the outside of the second connecting hole 222.Third connecting hole 223 be also a through-hole, and the second connecting hole 222 and third connecting hole 223 are circumferentially arranged along the inner wall of the ventilation chamber 220.

Fig. 7 is a kind of stereoscopic schematic diagram of switching valve.Fig. 8 is the three-dimensional signal under another visual angle of the switching valve in Fig. 7 Figure.In conjunction with Fig. 6~8, switching valve 3 is set in the ventilation chamber 220, can be rotated in the ventilation chamber 220, first Rotational transform between turned position, the second turned position and third turned position.Switching valve 3 includes a cylindrical body 301, cylinder One end of shape ontology 301 is equipped with exhaust outlet 313, gas can be discharged into atmosphere by the exhaust outlet 313.Cylindrical body 301 Inside it is provided with the first air intake duct 302.The side wall of cylindrical body 301 offers the first air vent 306 and the second air vent 307, the One air vent 306 is identical as the shape of the first connecting hole 221 in ventilation chamber 220, i.e., is all circle；Second air vent 307 It is identical as the shape of the second connecting hole 222 in ventilation chamber 220, i.e., it is all rectangular.When the switching being located in ventilation chamber 220 When valve 3 is in the first rotation position position, the first air vent 306 is connected with the first connecting hole 221, the second air vent 307 and the Two connecting holes 222 are connected, and the first air intake duct 302 is located at the closed at one end of exhaust outlet 313.The outer surface of cylindrical body 301 It is divided into first area 320 and second area 330 along its axial direction, first area 320 and second area 330 are annular region, First air vent 306 is located in first area 320, and the second air vent 307 is located in second area 330.

Fig. 9 is the cross-sectional view in the direction AA ' in Fig. 4.Figure 10 is the enlarged diagram in the region E in Fig. 6.Figure 11 is figure The region F enlarged diagram in 6.It is described specifically below with reference to Fig. 9~Figure 11.A bidirectional piston 8 is equipped in first stack shell 4a, The inner cavity of first stack shell 4a is divided into the first compression chamber 4a1 and the second compression chamber 4a2, i.e., two-way work by the bidirectional piston 8 The first compression chamber 4a1 is formed between plug 8 and upper cover 2, forms the second compression chamber 4a2 between bidirectional piston 8 and pedestal 6. The bidirectional piston 8 includes a two-way piston only 801.An air-breathing chamber 806, the suction are equipped in the bidirectional piston ontology 801 The opening of gas chamber 806 is connected with the first air intake duct 7a.The side positioned at the first compression chamber 4a1 of piston only is equipped with the Valve block 803 on valve block 802 and second on one, valve block 803 is respectively arranged at the first air intake duct on valve block 802 and second on first The two sides of 7a.Enable to 806 one-way conduction of air-breathing chamber in the first pressure by valve block 803 on valve block 802 and second on first Contracting chamber 4a1, i.e., when bidirectional piston 8 moves down, the gas in atmosphere can pass sequentially through the first air entry 101 on handle 1, First air intake duct 7a, air-breathing chamber 806 flow into the first compression chamber 4a1.Piston only positioned at the one of the second compression chamber 4a2 Side is equipped with the first lower disc 804 and the second lower disc 805, and the first lower disc 804 and the second lower disc 805 are respectively arranged at first The two sides of air intake duct 7a.806 one-way conduction of air-breathing chamber is enabled to by the first lower disc 804 and the second lower disc 805 In the second compression chamber 4a2, i.e., when bidirectional piston 8 moves up, the gas in atmosphere can pass sequentially through the first suction on handle 1 Port 101, the first air intake duct 7a, air-breathing chamber 806, most laggard mistake the first lower disc 804 and the second lower disc 805 flow into second Compression chamber 4a2.One first lower chamber 601 is equipped in pedestal 6, the first lower chamber 601 and the second compression chamber 4a2 pass through first Lower check valve 603 is connected, and gas is merely able to flow into the first lower chamber 601 from the second compression chamber 4a2.

With reference to Fig. 9~Figure 11, one-way piston 9 is set in the second stack shell 4b, forms one between one-way piston 9 and pedestal 6 Third compression chamber 4b1, third compression chamber 4b1 are connected by the second outer tube 5b with filling channel 210.One-way piston 9 includes One one-way piston ontology 901, one-way piston ontology 901 is interior to be equipped with an aspirating flutes 902, and the cross section of the aspirating flutes 902 is in Circle, wherein one-way piston ontology 901 be equipped with one along one-way piston ontology 901 the air-breathing through-hole 903 being arranged radially, air-breathing The both ends of through-hole 903 are respectively communicated in the inner cavity of aspirating flutes 902 and the second stack shell 4b.The opening of the aspirating flutes 902 connects In the second air intake duct 7b.The outer wall of one-way piston ontology 901 is equipped with first annular baffle 904, and is located at air-breathing through-hole 903 Opening side far from aspirating flutes 902.The second ring baffle is equipped between first annular baffle 904 and air-breathing through-hole 903 905.The outer diameter of first annular baffle 904 is less than the outer diameter of first annular baffle 904, first annular baffle 904 and the second annular An one-way sealing sealing groove 907 is formed between baffle 905, a sealing ring 906 in one-way sealing sealing groove 907.When one-way piston 9 moves up When, since the outer diameter of the second ring baffle 905 is greater than the outer diameter of first annular baffle 904, so being located in one-way sealing sealing groove 907 Sealing ring 906 can not play sealing function, can enable gas pass through the one-way piston 9 enter third compression chamber In 4b1.One second lower chamber 602, the second lower chamber 602 and third compression chamber 4b1 is equipped in pedestal 6 to place an order by second It is connected to valve 604, gas is merely able to flow into the second lower chamber 602 from third compression chamber 4b1.Second lower chamber 602 Also be connected with one end of the second outer tube 5b, and and the other end of outer tube is then connected with filling channel 210.

With reference to Fig. 9~Figure 11, switching valve 3 include the first air intake duct 302, the second air intake duct 303, first row air flue 304 with And second row air flue 305, the first air intake duct 302, the second air intake duct 303, first row air flue 304 and second row air flue 305 are equal Along the axially extending of switching valve 3.Switching valve 3 shown in Fig. 9 is located at the first turned position, in chamber 220 of taking a breath at this time The outer wall that third connecting hole 223 is switched valve 3 blocks, and the second connecting hole 222 connects with the second air vent 307, that is, realizes Drain the connection of chamber 230 and the first air intake duct 302.First compression chamber's 4a1 one-way conduction is in the drainage lumens for being set to upper cover 2 A second one-way valve 231 is arranged to realize gas from the first compression chamber 4a1 to drainage in drainage chamber 230 in room 230 The one-way conduction of chamber 230.

Referring again to Fig. 9 to Figure 11, switching valve 3 is in the first turned position.When user is pulled upwardly handle 1,1 band of handle Dynamic bidirectional piston 8 moves up and (moves up stroke), and the gas in the first compression chamber 4a1 is flowed along the first gas circuit 110 shown in Fig. 9 Dynamic, i.e. gas in the first compression chamber 4a1 is flowed into drainage chamber 230 by second one-way valve 231, is passing through the second connection Hole 222 and the second air vent 307 flow into the first air intake duct 302 from drainage chamber 230；At the same time, second compression chamber's 4a2 shape At negative pressure, the gas in environment enters the second compression chamber 4a2 along air-breathing gas circuit 141 shown in Fig. 9.Handle 1 drives double During moving up to piston 8, sealing ring 906 can not achieve sealing in the one-way piston 9 in the second stack shell 4b, so gas Body can enter in third compression space through the one-way piston 9.

Figure 12 is the diagrammatic cross-section in the direction CC ' along Fig. 2.First outer tube 5a and the second outer tube 5b are set side by side, and first Outer tube 5a is connected with the first connecting hole 221 in ventilation chamber 220.220 one-way conduction of chamber take a breath in filling channel 210, The connection that ventilation chamber 220 and filling channel 210 is realized by the first check valve 211, so that gas can be from ventilation Chamber 220 unidirectionally flows to filling channel 210.Second outer tube 5b is connected with filling channel 210.Switching valve 3 is located in Figure 11 First turned position, the first air intake duct 302 of switching valve 3 and the first check valve 211 are opposite at this time, so that the first air intake duct 302 In gas can by the first check valve 211 flow into filling channel 210 in.Filling channel 210 is connected with a pressure gauge 212, The gas pressure in inflated device can be measured by the pressure gauge 212.First check valve 211 can be with second one-way valve 231 It can effectively prevent the high pressure gas being inflated in device reflux.The first lower chamber 601 in Fig. 9 also with the first outer tube 5a one End is connected, and the other end of the first outer tube 5a is then connected with the first connecting hole 221 of ventilation chamber 220.

With reference to Fig. 9 and Figure 12, handle 1 drives bidirectional piston 8 to move up and (move up stroke), the gas in the first compression chamber 4a1 Body flows into the first air intake duct 302 through drainage chamber 230 along the first gas circuit 110, then through the first air intake duct 302, the first check valve 211 flow into filling channel 210.

Figure 13 is the diagrammatic cross-section of the DD ' in Fig. 5.When handle 1 drives bidirectional piston 8 to move down and (move down stroke), the Gas in two compression chamber 4a2 flows into filling channel 210 along the second gas circuit 120, i.e. gas in the second compression chamber 4a2 Body enters the first lower chamber 601, flows into the first outer tube 5a from the first lower chamber 601, then flows into switching valve 3 through the first outer tube 5a In the first inlet channel.With reference to Figure 12, the gas of the first inlet channel is entered from the first outer tube 5a, by the first check valve 211 flow into filling channel 210.

Figure 14 is the diagrammatic cross-section of the BB ' in Fig. 5.Handle 1 drives in folding process, i.e., handle 1 drives second When one-way piston 9 in body 4b moves down and (moves down stroke), sealed between one-way piston 9 and the second stack shell 4b, so that third Gas flows into filling channel 210 along third gas circuit 130 in compression chamber 4b1, i.e. gas in third compression chamber 4b1 enters Second lower chamber 602 then enters the second outer tube 5b from the second lower chamber 602, and it is logical finally to flow into inflation by the second outer tube 5b Among road 210.

When switching valve 3 is in the first turned position, air charging system is in the first modes of inflation, i.e. moving up in handle 1 In stroke, air charging system only passes through the first compression chamber 4a1 and is inflated；In moving down stroke, air charging system passes through the second pressure Contracting chamber 4a2 and third compression chamber 4b1 are inflated simultaneously.

Figure 15 is diagrammatic cross-section when switching valve is in the second turned position.Switching valve 3 shown in Figure 15 is located at the Two turned positions, the first row air flue 304 and third connecting hole 223 of switching valve 3 are opposite, and the side wall of switching valve 3 offers the 4th Air vent 309, the 4th air vent 309 are connected to third connecting hole 223, so that the first compression chamber 4a1 and first row air flue 304 are connected.The side wall of switching valve 3 blocks the second connecting hole 222 simultaneously.

Figure 16 is the stereoscopic schematic diagram of the switching valve in Figure 15.Figure 17 is vertical under another visual angle of the switching valve in Figure 15 Body schematic diagram.Structure chart 15~17,3 first row air flue of switching valve, 304 one end are communicated with atmosphere, other end closing.Cylindrical body The 4th air vent 309 opened up on 301 side wall is connected with the first row air flue 304.Second air intake duct 303 is closed at one end, The other end is for filling channel 210 shown in connected graph 12.Third air vent 308 is opened up on the side wall of cylindrical body 301, it should Third air vent 308 is connected with second air intake duct 303, can be made shown in Figure 12 by the third air vent 308 First outer tube 5a is connected with the second air intake duct 303.Third air vent 308 is located in the first area 320 of cylindrical body 301, 4th air vent 309 is located in second area 330.

With reference to Figure 15, when switching valve 3 is in the second turned position compared with when switching valve 3 is in the first turned position, no Be with place: handle 1 drives during bidirectional piston 8 moves up and (move up stroke), the gas in the first compression chamber 4a1 along 4th gas circuit 150 is discharged into atmosphere, i.e. gas in the first compression chamber 4a1 passes through the third connecting hole 223 in ventilation chamber 220 First row air flue 304 is flowed into the 4th air vent 309 in switching valve 3, finally by first row air flue 304 through shown in Fig. 7 The exhaust outlet 313 of switching valve 3 is discharged into atmosphere.During handle 1 drives bidirectional piston 8 to move down and (move down stroke), the second compression chamber Gas in the 4a2 of room flows into the second air intake duct 303 shown in Figure 16 by third air vent 308 shown in Figure 16, passes through Second air intake duct 303 flows into the filling channel 210 shown in Figure 12.

When switching valve 3 is in the second turned position, air charging system is in the second modes of inflation, i.e. moving up in handle 1 In stroke, air charging system is without inflation；In moving down stroke, air charging system is compressed by the second compression chamber 4a2 and third Chamber 4b1 is inflated simultaneously.It can enable a user to avoid being inflated inflated device in moving up stroke in this way, Because moving up charge operation in stroke than moving down the difficulty of the charge operation in stroke, user is more easier pair in moving down stroke Handle 1 applies external force and is inflated.

Figure 18 is diagrammatic cross-section when switching valve is in third turned position.Figure 19 is the solid of the switching valve in Figure 18 Schematic diagram.In conjunction with Figure 18 and Figure 19, the cylindrical body 301 of switching valve 3 be equipped with the 5th air vent 310, the 6th air vent 311 and 7th air vent 312, the 5th air vent 310, the 6th air vent 311 and the 7th air vent 312 with 305 phase of second row air flue It is logical.Second row air flue 305 is closed at one end, and the other end is connected to atmosphere.When switching valve 3 is in the third turned position shown in Figure 18 When, third connecting hole 223 is connected to the 7th air vent 312, and the second connecting hole 222 is connected to the 6th air vent 311, the 5th ventilation Hole 310 is connected to the first connecting hole 221 shown in Fig. 6.5th air vent 310 is located at first area 320, the 6th air vent 311 and the 7th air vent 312 be located at second area 330.

When switching valve 3 is in third turned position compared with when switching valve 3 is in the first turned position, difference exists In: when switching valve 3 is in third turned position, during handle 1 drives bidirectional piston 8 to move up and (move up stroke), the first compression Gas flows into second row air flue 305 along the 5th gas circuit 160 in chamber 4a1, i.e. gas in the first compression chamber 4a1 passes through respectively It crosses drainage chamber 230 and third connecting hole 223 flows into second row air flue 305, be most discharged into atmosphere through second exhaust road 305 afterwards.? During hand 1 drives bidirectional piston 8 to move down and (move down stroke), the gas in the second compression chamber 4a2 passes through the first outer tube 5a, then Second exhaust channel is flowed into through the 5th air vent 310.It is moving up stroke and is moving down in stroke, the first compression chamber 4a1 and second Gas in compression chamber 4a2 is discharged into atmosphere, and it is logical to enter inflation in moving down stroke for the only gas of third compression chamber 4b1 Road 210 is to inflate inflated device.

When switching valve 3 is in third turned position, air charging system is in third modes of inflation, i.e. moving up in handle 1 In stroke, air charging system is without inflation；In moving down stroke, air charging system passes through same simply by third compression chamber 4b1 When be inflated.While can enabling a user to avoid being inflated inflated device in moving up stroke in this way, only It is to be inflated by a stack shell, is inflated relative to by two stack shells, reduces user and moving down required for handle 1 Power.

In some embodiments, the internal diameter of the first stack shell 4a is greater than the internal diameter of the second stack shell 4b.In the first modes of inflation, second In modes of inflation and third modes of inflation, by reducing the internal diameter of the second stack shell 4b, user is moving down power required for handle 1 It is further to reduce.Especially in third modes of inflation, user can only pass through the third in the lesser second stack shell 4b of internal diameter Compression chamber 4b1 is inflated.It is logical whether the compression chamber that can be controlled by adjusting the different location of switching valve connects inflation Road, the filling channel and inflated device are connected directly to realize the inflation to inflated device, so as in gas replenishment process In gradually reduce the compression chamber that is connected with filling channel, allow users to the air pressure inside interior air charging system by Edge up quantity that is high and gradually decreasing the compression chamber for inflation.

One aspect according to the present utility model provides a kind of inflation method, applied to above-mentioned air charging system.

Figure 20 is a kind of flow diagram of inflation method.Inflation method shown in Figure 20 specifically includes:

Switching valve is turned to the first turned position by step S201, utilizes the first pressure in the first stack shell of air charging system Contracting chamber, the second compression chamber in the first stack shell and the third compression chamber in the second stack shell are inflated；

Switching valve is turned to the second turned position by step S202, using in the first stack shell the second compression chamber and Third compression chamber in second stack shell is inflated；

Switching valve is turned to third turned position by step S203, is carried out by the third compression chamber in the second stack shell Inflation.

In some embodiments, the internal diameter of the first stack shell is greater than the internal diameter of the second stack shell.

To sum up, whether the compression chamber that the utility model can be controlled by adjusting the different location of switching valve, which connects, is filled Gas channel, the filling channel and inflated device are connected directly to realize the inflation to inflated device, so as to inflate The compression chamber being connected with filling channel is gradually reduced in the process, is allowed users to the gas inside interior air charging system Pressure gradually rises and gradually decreases the quantity of the compression chamber for inflation.

It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined Assert that the specific implementation of the utility model is only limited to these instructions.For the ordinary skill of the utility model technical field For personnel, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made, should all regard To belong to the protection scope of the utility model.

Claims (12)

1. a kind of air charging system characterized by comprising

Pedestal；

Upper cover, setting includes the first stack shell of the first compression chamber and the second compression chamber between the upper cover and the pedestal, Wherein second compression chamber is connected to one first outer tube；

Switching valve is set in a ventilation chamber of the upper cover, and the ventilation chamber one-way conduction is set on described in one The filling channel of lid；

Wherein, the ventilation chamber is connected to first outer tube by one first connecting hole, and the ventilation chamber passes through one the Two connecting holes are connected to a drainage chamber for being set to the upper cover, and first compression chamber one-way conduction is in the drainage lumens Room, the ventilation chamber are connected to first compression chamber by a third connecting hole；

When the switching valve is located at the first turned position, first connecting hole and second connecting hole and the filling channel It is connected, the third connecting hole is by the switching valve closure；

When the switching valve is located at the second turned position, first connecting hole is connected with the filling channel, and described second Connecting hole is connected by the switching valve closure, the third connecting hole with the exhaust outlet of the switching valve.

2. air charging system according to claim 1, which is characterized in that the air charging system further include:

The both ends of second stack shell and the second outer tube, second stack shell are connected with the pedestal and the upper cover respectively, and described The both ends of two outer tubes are connected with the pedestal and the upper cover respectively；

One-way piston is set in second stack shell, and a third compression chamber is formed between the one-way piston and the pedestal Room, the third compression chamber are connected by second outer tube with the filling channel；

When the switching valve is located at third turned position, first connecting hole, second connecting hole and the third connect The exhaust outlet for connecing switching valve described in Kong Junyu is connected.

3. air charging system according to claim 1, which is characterized in that the switching valve includes:

Cylindrical body, one end are equipped with the exhaust outlet；

First air intake duct is set in the cylindrical body, when the switching valve is located at the first turned position described in first connect It connects hole and second connecting hole and is connected by first air intake duct with the filling channel；

Second air intake duct is set in the cylindrical body, when the switching valve is located at the second turned position described in first connect It connects hole and is connected by second air intake duct with the filling channel；

First row air flue is set in the cylindrical body, and when the switching valve is located at the second turned position, the third connects It connects hole and is connected by the first row air flue with the exhaust outlet of the switching valve.

4. air charging system according to claim 2, which is characterized in that the switching valve further include:

Second row air flue is set in the cylindrical body of the switching valve, described when the switching valve is located at third turned position First connecting hole, second connecting hole and the third connecting hole pass through the second row air flue and the switching valve The exhaust outlet is connected.

5. air charging system according to claim 3, which is characterized in that the side wall of the cylindrical body offers and described The first air vent that one air intake duct is connected and the second air vent being connected with first air intake duct；

Wherein, when the switching valve is located at first turned position, first air vent is connected with first connecting hole, Second air vent is connected with second connecting hole.

6. air charging system according to claim 3, which is characterized in that the side wall of the cylindrical body offers and described The third air vent that two air intake ducts are connected and the 4th air vent being connected with the first row air flue；

Wherein, when the switching valve is located at second turned position, the third air vent is connected with first connecting hole, 4th air vent is connected with the third connecting hole.

7. air charging system according to claim 4, which is characterized in that the side wall of the cylindrical body is equipped with the 5th ventilation Hole, the 6th air vent and the 7th air vent, the 5th air vent, the 6th air vent and the 7th air vent are equal It is connected with the second row air flue；

Wherein, when the switching valve is located at the third and goes to position, the 5th air vent is connected with first connecting hole, 6th air vent is connected with second connecting hole, and the 7th air vent is connected with the third connecting hole.

8. air charging system according to claim 2, which is characterized in that the interior of first stack shell is greater than second stack shell Internal diameter.

9. air charging system according to claim 2, which is characterized in that the one-way piston includes:

One-way piston ontology, the one-way piston ontology is interior to be equipped with an aspirating flutes, wherein the one-way piston ontology is equipped with One along the one-way piston ontology the air-breathing through-hole being arranged radially, the both ends of the air-breathing through-hole are respectively communicated in the air-breathing The inner cavity of groove and second stack shell；

First annular baffle is set to the outer wall of the one-way piston ontology, and is located at the separate described of the air-breathing through-hole The opening side of aspirating flutes；

Second ring baffle is set between the first annular baffle and the air-breathing through-hole, the first annular baffle Outer diameter is less than the outer diameter of the first annular baffle；

Wherein, an one-way sealing sealing groove, the one-way sealing are formed between the first annular baffle and second ring baffle A sealing ring is equipped in slot.

10. air charging system according to claim 1, which is characterized in that be equipped with a bidirectional piston, institute in first stack shell It states and forms first compression chamber between bidirectional piston and the upper cover, form institute between the bidirectional piston and the pedestal State the second compression chamber.

11. air charging system according to claim 2, which is characterized in that be equipped with the first air intake duct, institute in first stack shell State and be equipped with the second air intake duct in the second stack shell, the both ends of first air intake duct respectively be set to it is double in first stack shell It is connected to piston with leader, second air intake duct both ends are connected with the one-way piston and the handle respectively, and described One air intake duct is connected with one first air entry for being set to the handle, second air intake duct and is set to the handle One second air entry is connected.

12. air charging system according to claim 1, which is characterized in that the switching valve includes a cylindrical body, the cylinder Shape ontology is divided into first area and second area along axial direction, and the side wall of the cylindrical body is changed equipped with the first air vent, second Stomata, third air vent, the 4th air vent, the 5th air vent, the 6th air vent and the 7th air vent, wherein described first Air vent, the third air vent and the 5th air vent were located at the first area and along the weeks of the cylindrical body To distribution, second air vent, the 4th air vent, the 6th air vent and the 7th air vent are located at described Second area.