CN206745056U - Utilize the inflatable articles of Venturi effect - Google Patents

Abstract

A kind of inflatable articles (10) using Venturi effect are the utility model is related to, it includes inflatable bladder (12) and aerating device (14), and aerating device (14) includes：Suction tube (20), extend in inflatable bladder (12)；And Venturi (22), be configured for mount on suction tube and including：Axial main opening (44), be configured to connect to air-source so that primary air axially into；And at least one secondary opening (46), for entering the secondary streamses that the suction as caused by primary air is generated in suction tube.

Description

Utilize the inflatable articles of Venturi effect

Technical field

The field of inflatable devices is the utility model is related to, and relates more specifically to inflatable articles, such as inflatable mattress.

Background technology

Inflated with the help of conventional pump to inflatable bladder, such as give camping mattress, it may be possible to be very long and dull. Especially, manual pump or foot pump are typically very restricted.In order to make up the difficulty, it is known that a variety of to make mattress more rapidly The electrodynamic pump of inflation.However, electrodynamic pump is very heavy and they are frequently necessary to power supply, this make it that they are special when going on a hike It is difficult with.

Known a variety of aerating devices that Venturi effect can be utilized to inflate inflatable bladder, for example carried in US1943187 The device gone out, wherein aerating device are the removable members different from inflatable bladder.The aerating device be pipe form, the pipe Have：The first end outwards gradually spread out, there is the nozzle for being configured to connect to pump, so as to receive primary air (primary air stream)；And second end, the valve of inflatable bladder is configured to connect to, so as to inject air into wherein.Pass through Venturi effect Primary air is sent in aerating device by inflation including the use of pump, to produce suction (suction, swabbing action) wherein.Institute State suction and then suck the secondary streamses (secondary air stream) for being added to primary air, can so as to increase considerably feeding The air capacity of gas cell.

This is greatly facilitated using inflation during pump by making the air capacity of feeding inflatable bladder be increased up to three times. It is understood, therefore, that the type of inflation can be greatly reduced time needed for pumping and effort.Thus, it is easy to Inflatable bladder fast aeration is given with the help of simple manual pump.

The shortcomings that this aerating device, is, its possible heaviness, may be easily lost, and it has been observed that it is difficult to be attached To inflatable bladder.Especially, it is necessary to ensure that the valve of inflatable bladder is adapted to be coordinated with aerating device, and if can not coordinate, Specific connecting element is then needed to use, so as to form the engagement between them.Moreover, in the presence of via the valve with inflatable bladder The risk for connecting and leaking.

Utility model content

The purpose of this utility model is to propose a kind of inflatable articles for making up disadvantages mentioned above.

Therefore, the utility model provides a kind of inflatable articles, the inflatable articles include：It is at least one inflatable Capsule, there is air inlet；And aerating device, longitudinally extend, the aerating device includes：

Suction tube, has the first end for being fastened to air inlet, and suction tube has the maximum not less than the suction tube The length of lateral dimension, suction tube extend in inflatable bladder；And

Venturi, is configured for mount to the first end of suction tube, and Venturi includes：Axial main opening, Its section is less than the cross section of suction tube, and axial main opening is configured to connect to air-source so that the main gas of air-source generation Stream axially into；And at least one secondary opening, (distinct, different) is separated with axial main opening, so that in suction tube The secondary streamses that the suction as caused by primary air is generated enter.

In order to be inflated to inflatable bladder, air-source should be connected to the main opening of Venturi, to generate wherein Primary air.In a non-limiting manner, air-source can be manual pump, foot pump, electrodynamic pump or the lung even with person.

Primary air passes through Venturi and flows into the suction tube for producing suction.The suction passes through Venturi at least One secondary opening suction secondary streams.The secondary streamses are the air-flows outside primary air, and the two air-flows are conveyed along suction tube And it is admitted to inflatable bladder.

Aerating device is further divided into suction tube and Venturi helps to lift the efficiency of Wen Qiuli effects.Venturi is imitated Enter using come the air-flow that makes to inject and suck, and suction tube is used for producing suction and delivering air in inflatable bladder.

In the utility model, suction tube is fastened to inflatable bladder.Moreover, suction tube is located in inflatable bladder, so that Aerating device forms with inflatable bladder be integrated at least in part.

This has the advantages of increase inflatable articles overall compactness, so as to make it easier to store and transport.

Further, since suction tube is located in inflatable bladder, it is therefore possible to by the inflatable bladder around suction tube roll with Just fold and store inflatable articles, so that it takes space as few as possible.

It can not be filled moreover, suction tube is arranged in inflatable bladder by occurring inflating in such as US1943187 Putting the problem of being connected to inflatable bladder influences.Therefore can be directly inflated without advance installation or Connection Step.No Additional connection elements are needed to use, or have no need to ensure that aerating device is fitted to inflatable bladder.In addition, it is fixed to suction tube Inflatable bladder can limit connection of the air between the two elements and leak.Can be with, it is emphasized that in the absence of loss The risk of suction tube, because suction tube is secured to inflatable bladder.

In a non-limiting manner, suction tube is the form of the cylinder of the longitudinal axis extension around aerating device.

Especially, it is to be understood that suction tube is connected with the fluid flow inside of inflatable bladder and formed for conveying The passage of air.

In addition, in the utility model, the length of suction tube is not less than its maximum transverse size.Suction tube is therefore with foot Length that is enough and being advantageous to be formed suction using Venturi effect.

Preferably, but optionally, suction tube is additionally included in the first end extended between the inside of inflatable bladder and outside Portion.The first end also has the interior section extended in inflatable bladder.In addition, first end has in inflatable bladder extension The exterior section stretched, on Venturi part mounted externally.Especially, this first end can be fixed to suction tube In inflatable bladder.

Term " axial main opening " is used to refer to the opening set parallel to the longitudinal axis of aerating device.

The advantages of setting the main opening of Venturi with axial manner is that limitation primary air enters Venturi The axis of approach axis and Venturi (that is, the axis of suction tube, and be therefore that air is conveyed in aerating device Direction) between incidence angle.Limit what this incidence angle contributed to improvement in aerating device from Venturi to suction tube The passage of air, so as to reach the result of lifting charging efficiency and aeration speed.

Also, it is to be understood that the axial main opening of Venturi and at least one secondary opening are separation so that Primary air and secondary streamses are combined together in the Venturi in axial main opening and the downstream of at least one secondary opening.

In a non-limiting manner, the diameter of suction tube is more much bigger than the diameter of axial main opening.This can discharge venturi Big quantity space on device is open for receiving at least one pair, and provides the size for being enough to lift Wen Qiuli effects.

Advantageously, at least one secondary opening is axial.The main opening of Venturi and described at least one Individual secondary opening is then configured to enable primary air and secondary streamses axially into Venturi.As a result, primary air and secondary streamses Enter that axis is substantially parallel, therefore both air-flows are met in suction tube with almost nil incidence angle, thus hardly Produce turbulent flow.Again, Wen Qiuli effects, which get a promotion and inflated, carries out faster.

Preferably, at least half of the length of suction tube extends in inflatable bladder, so as to further increase inflatable articles The compactedness of product.This is particularly helpful to more easily store and transport.

In Advantageous variants, Venturi is removably mounting on the end of suction tube.Advantage is, makes With aerating device inflatable bladder can be made to be easy to deflate.By removing Venturi, produced at the first end of suction tube One opening, the opening make air be discharged from inflatable bladder.The diameter of this opening is substantially equal to the diameter of suction tube, so that Air is soon spilt from inflatable bladder.

Another advantage that Venturi can be removed is, reduces inflatable articles when not using inflatable articles Size.This is particularly for making inflatable articles be easier to store and transport.In addition, removable Venturi can be via flexibility Connection is fastened to inflatable bladder.

In a non-limiting manner, aerating device can include being used for the connection dress that Venturi is connected to suction tube Put.For example, these attachment means can include：Screw thread, on the exterior section of the first end of suction tube, for text Screw (tapping) in mound in the inwall of device coordinates.It is understood that Venturi is swirled on suction tube.

Preferably, at least one secondary opening is at least partially disposed on the periphery of the axial main opening.In the structure In type, it is to be understood that the air-source for being connected to axial main opening extends parallel to the longitudinal axis of aerating device.Therefore, it is empty Otherwise source of the gas can be limited using described in Wen Qiuli effects warp without the risk for stopping (or even part stops) at least one secondary opening The secondary streamses of at least one secondary opening suction.

It is highly preferred that extension of at least one secondary opening around the axial main opening ring-type, so that axially master opens Mouth and at least one secondary opening are coaxial.This construction enhance in Venturi contact of the primary air with secondary streamses and Homogenizing.Specifically, secondary streamses enter Venturi and formed simultaneously relative to the primary air entered via axial main opening almost For the incidence angle of zero degree, secondary streamses generally within the primary air around.Primary air and the secondary streamses place of meeting are nearly free from disorderly Stream.

Preferably, Venturi includes multiple secondary openings.Therefore, even if assuming that one of secondary opening is blocked, but Secondary streamses can still enter via another secondary opening and will not interrupt Venturi effect.

In particularly advantageous scheme of the present utility model, Venturi includes multiple secondary openings, and the multiple pair is opened Mouthful by between outer liner and inner liner radially extending wall separate each other, inner liner limits axial main opening.It is internal Bushing is used to separate primary air and secondary streamses and guides the primary air in Venturi, and outer liner guiding is in venturi Secondary streamses in device.

Preferably, but optionally, Venturi has four secondary openings.

Advantageously, Venturi comprises at least：First check-valve, it is configured to close axial main opening, to prevent sky Gas flows to outside from capsule via axial main opening.At least one first check-valve prevents air from being spilt from inflatable bladder, special It is not during the step of connecting or separating air-source and axial main opening.

Preferably, at least one first check-valve extends on the whole cross section of axial main opening substantially.Work as master Air-flow when being injected into the help of air-source in axial main opening, open and allow to lead by least one first check-valve Air-flow passes through.Conversely, when no air-flow injects axial main opening, such as between the stroke twice of pump, valve is in aerating device The pressure effect of middle air is lower to be closed, so as to prevent air from spilling.

Preferably, Venturi includes：At least one second check-valve, it is configured to close at least one pair and opens Mouthful, to prevent air from flowing to outside via at least one secondary opening from capsule.Again, when the secondary streamses being going into pass through When at least one pair is open and is sucked caused suction suction in pipe, at least one second check-valve is opened.When When suction in suction tube is not enough to suck secondary streamses, then at least one second check-valve closes.

In other words, at least one first check-valve and at least one second check-valve are opened simultaneously during inflation And closed when inflating and interrupting.

It is understood that when capsule is close to entirely pneumatic state, the pressure in inflatable bladder and aerating device makes to take out Caused suction is no longer enough to open at least one second check-valve and sucks secondary streamses in suction pipe.In such situation Under, Venturi effect no longer occurs.However, because the axial main opening of Venturi and at least one secondary opening are point From, therefore still be able to inject primary air by continuing on through axial main opening come gassy.

In another advantageous scheme of the present utility model, Venturi also includes：Removable connector, it is configured to close simultaneously Sympodium is open to main opening and at least one pair.The advantages of connector, is, prevents that axial main opening and at least one may be passed through Any gas leakage that individual secondary opening occurs.The connector be additionally operable to protect check-valves and prevent axial main opening by exterior object (for example, Stone or soil) stop.

In addition, when Venturi has first check-valve and possible at least one second check-valve, Ke Yili Solution, the leakage of air may be occurred by these check-valves, particularly if the pressure inside inflatable bladder is high and operates In the case of the inflatable bladder.In this illustration, connector is used for reducing these potential leakages of air.

In a non-limiting manner, connector can be the form of cap, and its cross section is substantially equal to the cross section of Venturi. Connector is mainly used in, in the case where once the inflation of inflatable bladder is completed, making Venturi in the close position.

Still in a non-limiting manner, aerating device can have an erecting device, and the erecting device can be by connector with can The mode of removal is arranged on Venturi.For example, erecting device can be included in the screw thread on the outer wall of Venturi And the screw in the inwall of connector.In a particular embodiment, Venturi has inner liner, and screw thread can be arranged on On the outer wall of inner liner.

Advantageously, suction tube is rigid and non-deformable, therefore prevents suction tube accidental damage, such as is crushed.And And the non-deformed property of suction tube prevents from showing the constricted zone for the cross section that may reduce suction tube partially or even wholly Stop the passage formed by suction tube, and prevent from disturbing primary air and secondary streamses to enter the path of inflatable bladder.

Preferably, suction tube has with the outer wall of foam coverage.One advantage is, avoids damaging or piercing through inflatable bladder And therefore protect inflatable bladder and user.Pipe may have sharp edge or rigid location, if above-mentioned sharp side Edge or rigid location can then damage inflatable bladder with respect to inflatable bladder friction.Suction tube is additionally, since in inflatable bladder to prolong Stretch, therefore walk (stepping down on pipe) or knock the user of pipe on pipe and can't see suction tube.Foam is used to limit suction tube Rigid location and protuberance.In addition, foam is used to buffer and prevents that user is injured.Preferably, foam is by polyethylene or any Other materials for being applied to buffering are made.Preferably, suction tube is made up of hard plastics, such as acrylonitrile-butadiene- Styrol copolymer (ABS).

Another advantage of foam is that it can also lift the comfort level of inflatable articles.For example, when the function of inflatable bladder When being support user, suction tube may form uncomfortable projection.Foam then forms the filling between suction tube and user Comfort liner.

Advantageously, the inflatable articles are inflatable mattresses, be the advantage is that, user can lie in inflatable mattress Above and above sleep.For example, it is to be understood that the inflatable mattress combined with aerating device (is formed of the present utility model Inflatable articles) it is particularly adapted to encamp.Generally there is the space of very little in the knapsack of camper and it is expected quickly to encamp.This reality The problem of can alleviating heaviness with new inflatable articles and mattress can be made quickly and easily inflatable and deflatable simultaneously.

Brief description of the drawings

By reading the following description of the embodiment of the present utility model provided via non-limiting example and referring to the drawings, The utility model is better understood when, in the accompanying drawings：

Fig. 1 shows to be provided with the inflatable articles of the present utility model of aerating device；

Fig. 2 shows Fig. 1 in the close position aerating device；

Fig. 3 A show Fig. 1 in an open position aerating device；

Fig. 3 B are shown connected to Fig. 3 A of air-source device；

Fig. 4 shows the suction tube of the aerating device shown in Fig. 2 and Fig. 3 and removable Venturi；

Fig. 5 A are the sectional views of Fig. 1 aerating device；

Fig. 5 B show Fig. 5 A in an open position aerating device；And

Fig. 6 is the exploded view of a part for Fig. 1 Venturi.

Embodiment

Fig. 1 shows a kind of inflatable articles 10, including inflatable bladder 12 and aerating device 14.In a non-limiting manner, may be used Inflated articles 10 can be inflatable mattress or inflatable boat.In this illustration, inflatable bladder 12 has air inlet 16, air inlet Mouth 16 is formed in one of side wall 18 of inflatable bladder 12.Moreover, aerating device includes suction tube 20 and Venturi 22.Suction tube 20 has is fixed to inflatable bladder 12 and between the inside and outside of the inflatable bladder 12 at air inlet 16 The first end 24 of extension.Moreover, in this illustration, Venturi 22 is removably attached to the first end of suction tube 20 And extend outside inflatable bladder 12.Aerating device 14 extends along axis A, and axis A corresponds to the longitudinal axis of suction tube.Especially, Suction tube 20 connects with the fluid flow inside of inflatable bladder 12.Especially, suction tube 20 includes opening wide into inflatable bladder 12 The second end 26.

Fig. 2 shows Fig. 1 aerating device 14, and aerating device 14 includes suction tube 20 and Venturi 22.It can be seen that , in a non-limiting manner, suction tube is made up of cylindrical body 28 and first end 24.The cross section of suction tube 20 is circular. The length L of suction tube 20 is more than the diameter D of cylindrical body.Preferably, the length L of suction tube arrives 300mm model at 40 millimeters (mm) In enclosing, and the diameter D of cylindrical body 28 is in the range of 20mm to 70mm.

In a non-limiting manner, cylindrical body 28 extends in the inflatable bladder 12 completely, and first end 24 is used to wear The air inlet 16 of inflatable bladder 12 is crossed, so as to which suction tube be held in place by.Preferably, the length of suction tube 20 is at least Half extends in inflatable bladder 12.First end 24 also has the interior section of the extension in inflatable bladder 12.In addition, first End 24 has extension and the exterior section installed above for having Venturi 22 outside inflatable bladder 12.First end 24 it is interior Portion part is additionally provided with radial direction maintaining part 30, and the exterior section of first end is additionally provided with the portion of axially retaining 32.

The cross section of radial direction maintaining part 30 is more than the cross section of cylindrical body 28 and the substantially equal to air inlet of inflatable bladder 12 16 cross section.Therefore, this radial direction maintaining part 30 is configured to extend through air inlet 16, so that suction tube 20 is radially kept In position.Moreover, the shoulder that portion 32 forms the side wall 18 of supporting inflatable bladder 12 is axially retained, so that suction tube 20 is protected Hold in the axial location relative to inflatable bladder 12.

Advantageously, suction tube 20 is rigid and non-deformable.Moreover, the cylindrical body 28 of suction tube 20 includes outer wall 34, At least part of outer wall 34 is covered by one layer of foam 36, so as to protect inflatable bladder 12 and user.

Venturi 22 is removably attached to the first end 24 of suction tube 20.In the figure 2 example, it can be seen that , in a non-limiting manner, Venturi 22 has cylinder.In addition, be provided with can for the outer wall 38 of Venturi The attachment element 40 preferably Venturi being held in hand.It should further be observed that, removable connector 42 is arranged on On Venturi 22.Connector 42 prevents gas leakage and therefore makes aerating device 14 in the close position.Once inflatable bladder 12 is Inflate and use, then connector 42 is particularly conducive to avoid the potential leakage of air.

Fig. 3 A example shows the aerating device of longitudinally A extensions.In this illustration, aerating device 14 is positioned at opening Position, and connector 42 is removed.It can be observed that in this illustration, Venturi 22 has axial main opening 44, And in a non-limiting manner, there are four axially secondary openings 46.Axial main opening 44 is in substantially round, and its cross section is less than post The cross section of body 28, axial main opening 44 are limited, parallel to longitudinal axis A and in venturi by axially arranged inner liner 48 The center of device 22.Four secondary openings 46 are set around axial main opening 44 in an annular manner, and internally bushing 48 is with being fixed to text In mound between the outer liner 50 of the outer wall 38 of device 22.Pair opening 46 has of substantially equal size and dimension, and they By between outer liner 50 and inner liner 48 radially extending wall 52 separate.It can be observed that secondary opening 46 also by Axially set, parallel to the longitudinal axis of aerating device.Due to Venturi 22 is arranged on suction tube 20, therefore four Pair opening 46 and axial main opening 44 are fully incorporated suction tube 20.

Further, it is seen that aerating device 14 can have：Erecting device 54, can be by connector 42 with removable Mode be arranged on Venturi on.In this illustration, erecting device 54 includes：Screw thread 56, is arranged on Venturi Outer wall 38 on；And screw 58, it is arranged in attachment 60, the attachment is projected into the inside of connector 42, as shown in Figure 5A. In the case of without departing from the scope of the utility model, the erecting device 54 for being installed to connector on Venturi can With including clamping system.

In fact, aerating device 14 enables inflatable bladder 12 to be inflated using Venturi effect.It can be seen that in Fig. 3 B It is that air-source 61 (such as pump) is connected to the axial main opening 42 of Venturi 22 by user.For example, the air Source 61 can be manual pump, foot pump or electrodynamic pump.Using air-source 61, user injects primary air through axial main opening 44 Venturi 22.This primary air is admitted to the suction tube for producing suction.The suction is through the suction of pair opening 46 from inflation The secondary streamses of the external environment condition of device 14.Primary air and secondary streamses mix in Venturi 22 and be admitted to suction tube 20, Inflatable bladder 12 is introduced, so as to be inflated to inflatable bladder 12.

It is understood that because axial main opening 44 and the secondary opening 46 are axially arranged, therefore primary air and secondary gas The incidence angle of stream is substantially zeroed, thus both air-flows enter Venturi 22 and produce the disorderly of minimum when meeting wherein Stream.This improves the efficiency of Venturi effect.

Moreover, the length L of the length of suction tube 20, especially cylindrical body 28, which is adapted to, receives the Wen Qiuli effects presentation Optimal suction.

Fig. 4 shows the variant of aerating device 14, and wherein Venturi 22 is removable, so as to suction tube 20 Separation.In this illustration, it will be seen that aerating device, which has, makes Venturi 22 be easy under suction tube 20 is dismantled The attachment means 62 come.

In this illustration, in a non-limiting manner, attachment means 62 are made up of screw thread 64 and screw 66, and screw thread 64 is set On the outer wall of the exterior section of the first end 24 of suction tube 20, and screw 66 is arranged in the inwall of Venturi 22. These attachment means 62 are shown in Fig. 5 A in a manner of sectional view., can in the case of without departing from the scope of the utility model To use the attachment means 62 of other forms, such as clamping piece or sucking fit system.Referring again to Fig. 4, it will be seen that The first end 24 of suction tube 20 axially retain portion 32 be additionally operable to limit Venturi 22 change it is tight.

The advantages of can separating Venturi 22, is that release is located at the first axle of the suction tube at first end 24 To opening 45.This big opening 45 allows the air in inflatable bladder 12 to spill, and makes the inflatable bladder 12 quick so as to reach The result of deflation.

In Fig. 5 A example, it will be seen that main opening 44 and secondary opening 46 are all beaten into Venturi 22 Open, filled so that primary air and secondary streamses are open through these in the case where not running into any obstruction and are admitted to venturi In putting 22, then along suction tube 20 and inflatable bladder 12 is finally fed to.

Also, it is to be understood that connector 42 can cover the axial main opening of Venturi and secondary opening simultaneously, from And prevent gas leakage.

Fig. 5 B are the sectional views of aerating device 14 in an open position.This view schematically shows to enter The primary air and secondary streamses of Venturi 22, while ignore the interference that may occur and the influence of turbulent flow.It can be seen that Primary air F1 enters Venturi via axial main opening 44 and is admitted to the suction tube 20 of generation suction.Then, secondary streamses F2 is inhaled into through pair opening 46 and is admitted to suction tube 20, and secondary streamses F2 adds primary air F1 at suction tube 20.Primary air F1 Final air-flow F3 is then formed in the suction tube 20 with secondary streamses F2, final air-flow F3 is admitted to inflatable bladder 12, so as to pair can Gas cell 12 is inflated.Final air-flow F3 can be three times of primary air F1.

As shown in Fig. 5 A and Fig. 5 B and Fig. 6 exploded view, check-valves is arranged on axial main opening 44 and secondary opening 46 In.These valves are configured to the opening that closure associates with them.

In this illustration, the first check-valve 68 of substantial circular is arranged on the axial main opening 44 of Venturi 22 Place.Moreover, second check-valve 70 is arranged at four secondary openings 46 of Venturi.First check-valve 68 and second check-valve 70 include diaphragm (diaphragm) 72, and diaphragm 72 is configured to allow for primary air and secondary streamses via main opening 44 and secondary opening 46 Into Venturi 22.During inflation, diaphragm 72 is opened to the inside of suction tube, so as to allow air into.Conversely, do not having In the case of the primary air for having entrance, diaphragm 72 is remained closed by the air pressure applied inside Venturi. Therefore, check-valves 68 and 70 prevents air to be leaked to inflation from Venturi 22 by axial main opening or by secondary opening The outside of device 14.Therefore, this enables inflatable bladder 12 to inflate, while prevents that inflatable bladder is deflated when inflation from interrupting.

Once inflatable bladder 12 is close to maximum aeration quantity, then the pressure in inflatable bladder, suction tube 20 and Venturi 22 Power makes suction caused by primary air no longer be enough to open second check-valve 70 and suck secondary streamses.Wen Qiuli effects no longer occur. However, according to particularly advantageous scheme of the present utility model, and because axial main opening 44 and secondary opening 46 are single, make User can continue to inject air through axial main opening with the help of air-source.This can fill with the help of single primary air Expire and complete the inflation of inflatable bladder 12.

In. fig. 6, it can be seen that first check-valve is made up of the diaphragm 72 being maintained in fastening member 74.In addition, Slide diaphragm 72 and fastening member 74 is separated by seal washer 76.

Claims (15)

1. a kind of inflatable articles (10), it is characterised in that the inflatable articles include：At least one inflatable bladder (12), institute Stating at least one inflatable bladder has air inlet (16)；And aerating device (14), longitudinally (A) prolongs the aerating device Stretch, and the aerating device (14) includes：

Suction tube (20), there is the first end (24) for being fastened to the air inlet (16), the suction tube, which has, is not less than institute The length of the maximum transverse size of suction tube is stated, the suction tube (20) extends in the inflatable bladder (12)；And

Venturi (22), it is configured for mount to the first end (24) of the suction tube (20), the Venturi (22) include：Axial main opening (44), its section are less than the cross section of the suction tube, and the axial main opening (44) is configured to Be connected to air-source so that primary air caused by the air-source axially into；And at least one secondary opening (46), it is and described Axial main opening (44) separation, so that the secondary streamses that the suction as caused by the primary air is generated in the suction tube (20) Into.

2. inflatable articles according to claim 1, it is characterised in that wherein described at least one secondary opening (46) is axle To.

3. inflatable articles according to claim 1, it is characterised in that at least half of the length of the suction tube is in institute State in inflatable bladder and extend.

4. inflatable articles according to claim 2, it is characterised in that side of the Venturi (22) that can remove Formula is arranged on the end (24) of the suction tube (20).

5. inflatable articles according to claim 1, it is characterised in that at least one secondary opening (46) is at least partly Ground is arranged on the periphery of the axial main opening (44).

6. inflatable articles according to claim 5, it is characterised in that at least one secondary opening (46) is around the axle Annularly extend to main opening (44).

7. inflatable articles according to claim 1, it is characterised in that the Venturi includes multiple secondary openings (46)。

8. inflatable articles according to claim 7, it is characterised in that the Venturi includes multiple secondary openings (46), the multiple secondary opening by between outer liner (48) and inner liner (50) radially extending wall (52) divide each other From the inner liner limits the axial main opening (44).

9. inflatable articles according to claim 1, it is characterised in that the Venturi comprises at least：First stops Valve (68) is returned, is configured to close the axial main opening, to prevent air from the inflatable bladder (12) via described axially main Opening flows to outside.

10. inflatable articles according to claim 9, it is characterised in that the Venturi includes：At least one Two check-valves (70), be configured to close at least one secondary opening, with prevent air from the inflatable bladder via it is described to A few secondary opening flows to outside.

11. inflatable articles according to claim 1, it is characterised in that the Venturi also includes：It is removable to insert Fill in (42), be configured to be closed at the axial main opening and at least one secondary opening.

12. inflatable articles according to claim 1, it is characterised in that the suction tube (20) is rigid and can not Deformation.

13. inflatable articles according to claim 1, it is characterised in that the suction tube has to be covered with foam (36) Outer wall (34).

14. inflatable articles according to claim 1, it is characterised in that the inflatable articles (10) are inflatable beds Pad.

15. inflatable articles according to claim 1, it is characterised in that the suction tube is secured to described inflatable Capsule (12).