CN101788088B - Flexible hose with smooth inner and/or outer wall - Google Patents

Abstract

Flexible hose comprising a corrugated wall of which an outer surface comprises a multitude of consecutive protrusions (1) and grooves (2) and of which an inner surface comprises a multitude of internal protrusions (4) and grooves (3), comprising a multitude of barriers for closing off each of the multitude of internal and/or external grooves (2), each of the multitude of barriers comprising a first closing leg (10, 12) of a first profile part and a second closing leg (11, 13) of a second profile part, the second closing leg being directed to the first closing leg, the first and second closing legs having a complementary shape provided to form a substantially smooth inner and/or outer surface.

Description

There is smooth inwall and/or the flexible hose of outer wall

Technical field

The present invention relates to flexible hose.In addition the present invention relates to for the manufacture of the pipe rib of this ribbed pipe and the manufacture method of this ribbed pipe.

Background technique

Inside and outside wall top layer has the flexible hose of fold can be used for such as dust collecting system and releasing system.

In the dust collecting system by ribbed pipe transport air (sometimes with dust granule mutually mixed), portion of air and/or dust, can knock the multiple inwall recesses that are positioned at below multiple outer wall protuberances.Thus, short grained the flowing of air and/or dust meets obstructions, and result is that the maximum capacity of suction nozzle inspiration booty declines.In addition, the existence of the inwall recess of definite shape and quantity, also can cause pipe to send worthless whistle.In releasing system, there is the shortcoming on the inwall top layer of fold to be that booty can pile up between recess, so that produce worthless obstruction and foul smell.

EP-A-1969987 file is described a kind of elasticity dust suction ribbed pipe that has weakened whistle.For this reason, on inwall, add one deck cover, to cover each recess.This cover can by such as two legs form: the Article 1 of the first pipe rib covers leg; Cover leg with the Article 2 towards the first covering leg of its pipe rib of drawing close mutually.First and second covers leg towards tube interior bending, covers mutually at least in part.Thus, air and/or dust granule can not enter inwall recess, and worthless whistle has been weakened.But because first and second leg covers mutually at least in part, having formed unevenly has wave inwall, so that tube interior strengthened air and/or the short grained flow resistance of dust, has dust accumulation in pipe.This is worthless.

JP-A-11159668 file is described tube wall fold, have a kind of flexible hose of multiple inwall recesses and outer wall protuberance.Flexible hose forms by S font pipe rib being carried out to the spiral bag of wrapping up in.With regard to some product form of flexible hose, in order to form smooth inner wall, each recess is to form like this: first S word pipe rib, is covered with another article of covering leg of the 2nd S word pipe rib of drawing close mutually above.Cover leg along the whole length of recess, the one leg of erectting from first S word pipe rib, extends to the flat one leg of lying of protuberance.In other words, covering leg equates substantially with S word pipe rib length.Therefore covering leg seriously increases weight ribbed pipe.In addition, in the time that ribbed pipe curves inwardly, the lengthening that covers leg by causing in ribbed pipe through dwindling, ribbed pipe excurvation inwall becomes in rough, pipe the resistance of air is enhanced.

Flexible hose has the outer wall of fold, can cause equally occurring worthless booty and pile up between outer wall adjacent recesses.Have the outer wall of fold to also have a shortcoming, pipe is easily hooked by object, makes pipe not handy.This point is especially effective to central suction system sweep-up pipe.Therefore, in order to make outer wall become more smooth, usually put certain socks at pipe, but this is unfavorable for pipe weight and cost price.

Summary of the invention

Therefore, the invention is intended to exploitation and solved the substituting flexible hose of one or more problems in the problems referred to above.

By flexible hose according to the present invention, can reach this object.

The relevant feature that the flexible hose of making according to the present invention has is, there is the tube wall of fold to comprise multiple covers, be used for covering the each recess of inwall and/or outer wall, wherein each cover has the Article 1 covering leg of the first pipe rib, also there is the second pipe finned surface of drawing close mutually with it covers Article 2 covering leg from leg to Article 1, and first and second covers leg along the covering mutually of ribbed pipe longitudinal component ground, its shape is also complementary, is almost smooth inwall and/or outer wall to form.

Multiple inwall recesses and outer wall protuberance make ribbed pipe have certain elasticity.This makes ribbed pipe for example can be applied to require, in the very resilient system of ribbed pipe, in dust suction or releasing system.

On ribbed pipe inwall and/or outer wall, adding multiple covers, is the each recess in order to cover ribbed pipe inwall and/or outer wall.

Add cover at flexible hose inwall, make to enter the risk that the booty in ribbed pipe is deposited in flexible hose inwall recess and reduced together with the medium transporting by ribbed pipe.According to the present invention, therefore flexible hose also has such benefit, and worthless obstruction and foul smell have reduced.

Add cover at flexible hose outer wall, reduced the risk of piling up from the booty of ribbed pipe outside in flexible hose outer wall recess.In the time that ribbed pipe is used, for example, in the time that it slides on floor, just have booty and enter outer wall recess.

For the each recess that covers multiple inwalls and/or outer wall recess has added multiple covers, the Article 1 that each cover comprises the first pipe rib covers leg and the second pipe finned surface covers leg to the Article 2 of Article 1 covering leg.First and second covers leg shape complementarity, and it is almost smooth inwall and/or outer wall that flexible hose is had.

The complementary shape that is used for first and second covering leg that covers inwall recess, it is almost smooth inwall that flexible hose is had, and causes thus managing interior flow resistance/resistance of air and is minimized.When such as while using this ribbed pipe in vacuum cleaner, lower flow resistance makes Energy Intensity Reduction, is therefore favourable.The standard ribbed pipe of this model, general internal diameter is 33 millimeters, length is 1.8 meters.With regard to the standard ribbed pipe of this model, flow resistance drops to and minimumly means that overpressure loss can preferentially be transferred to lower than 12 millibars, also can further be transferred to lower than 10 millibars.

Because cover leg for first and second that covers inwall recess, flexible hose is had is almost smooth inwall, and the flexible hose of making according to the present invention has an additional advantage, and for example, while transporting certain medium (air), whistle has weakened.

The advantage that is almost smooth inner wall surface is that flow resistance has also reduced, so that can dwindle ribbed pipe internal diameter.Less internal diameter makes ribbed pipe lighter and more cheap.Because inwall is smooth, the loss in flowing has reduced, if ribbed pipe internal diameter is constant, can flow by ribbed pipe with the more medium of pump pressure, and this point is conducive to such as shortens with pump by the time of discharged medium.

By a situation that covers leg, using shape complementarity, the situation of two covering legs facing mutually each other with respect to only, is advantageous, and ribbed pipe weight has reduced.Because using two to cover leg in the situation that and can leg be done shortlyer, also just can be done thinlyyer cover leg not affecting under ribbed pipe strength conditions, consequently can reduce ribbed pipe weight.Cover legs two and do thinlyyer when only using one to cover leg, can bring extra consequence, the elasticity of ribbed pipe has strengthened.

Be almost smooth outer wall surface, make in the time of operation ribbed pipe, drag reduction, to minimum, reduces the risk that booty is piled up in outer wall recess in addition.In addition, be almost smooth ribbed pipe outer wall surface, can reduce the risk that ribbed pipe is hooked by object in the time being used.

Having the ribbed pipe tube wall of fold, is generally that pipe rib by being connected with front and back carries out helical and wraps up in bag and form.Those pipe ribs are made up of some settings (straight/oblique) leg and the leg lying low.The meaning of erectting is to stretch at least to form the angle of 60 ° with ribbed pipe radius.The meaning lying low is mainly to stretch along ribbed pipe radial direction.The lie low width of length major decision inside and outside wall recess of leg of pipe rib, pipe rib is erect the height of the length major decision inside and outside wall recess of leg.

Article one, first and second of pipe rib covers leg, preferably nestles up lie low leg two ends in opposition to each other of a pipe rib, and stretching towards opposite direction along the pipe rib leg elongation line that lies low.

The complementary shape of inwall and/or first and second leg of outer wall surface and mutually covering, preferably select like this, no matter ribbed pipe is inwardly still outwardly-bent, inwall and/or outer wall recess all should almost seal at any time, and it is smooth that inwall and/or outer wall should keep.Therefore, first and second covers the mutually part of collocation of leg, preferably has complementary shape, for example, be wedge shape or ellipse, so that inside and/or when outwardly-bent at ribbed pipe, can slide and cover mutually.There is no the inwall of a bending ribbed pipe and/or the complementary shape that first and second leg of outer wall surface is arranged in pairs or groups mutually, preferably be positioned in same plane, the recess of inwall and/or outer wall has been capped, and make ribbed pipe have is almost smooth inwall and/or outer wall surface simultaneously.In addition, the complementary shape that covers leg also has such benefit, and, in the time of operation ribbed pipe, covering leg can slide and cover mutually, so that the elasticity of ribbed pipe does not affect adversely.

According to the present invention, the pitch of flexible hose, the distance between inwall and/or outer wall recess that front and back are connected, preferably 5 millimeters.At traditional ribbed pipe, pitch is generally less than 5 millimeters.The benefit of this ribbed pipe is by troclia distance, can reduce ribbed pipe weight in wonderful mode.In addition, troclia, apart from causing inwall and/or outer wall recess quantity to reduce, makes can be reduced the resistance of air in ribbed pipe.

In addition, troclia is apart from arranging in pairs or groups with widening mutually of inwall and/or outer wall recess.As selection, can not change in pitch situation, expand the width of inwall and/or outer wall recess.

Wider inwall and/or outer wall recess cause ribbed pipe to become high resilience more, and its bending radius is less, and compressive strength is larger.Compressive strength is that ribbed pipe is flattened to needed strength yardstick.Bending radius is at the least radius not destroying when ribbed pipe is curved inwardly in ribbed pipe situation.If need to ribbed pipe be installed in little space, breather line is for example installed in building, improve ribbed pipe elasticity particularly useful.The width of inwall and/or outer wall recess is at least preferably 0.5 millimeter, more preferably at least 1 millimeter.In addition, expand inwall recess, can cause ribbed pipe elasticity to strengthen, but in pipe, the resistance of air not affected adversely.In addition,, by widening inwall and/or outer wall recess, can reduce ribbed pipe weight.

In addition, the change of the outer wall protuberance that front and back are connected and/or the distance of recess, i.e. the adjustment to ribbed pipe pitch and/or the adjustment to inwall and/or outer wall recess width, can be independent of covering leg and carry out.For example, if cover leg for covering inwall recess, just can needn't extend in covering leg situation the distance between the inwall recess being connected before and after expanding.

This manufacture process that can be advantageously applied to ribbed pipe of widening.The pipe rib part being connected preferably will be wrapped up in bag like this, pipe rib be connected position mutually against the leg of setting, should be connected to each other vertically.

The pipe rib part that front and back are connected not necessarily will be connected vertically/stick together.By the pipe rib part of erectting, also can, by being added on the additional leg that lies low of one of upright leg of pipe rib, flatly connect.Like this, just can be by the additional leg that lies low of first pipe rib, flatly be connected with the Article 2 of the next pipe rib leg that lies low, or by the S font pipe rib part that front and back are connected be connected take over rib part mutually against setting leg interconnect, or by both collocation, the connection between the pipe rib part being connected before and after realizing.

If pipe rib has added an additional leg that lies low, preferably to remove the leg of a setting.It is shorter than the setting leg removing to lie low leg because additional, and result is that ribbed pipe weight continues to reduce.

The best apply to Section distance of level connection joint exceedes the flexible hose of 5 millimeters, but also can the less flexible hose of apply to Section distance.

The height of recess/protuberance of being connected before and after expanding, preferably will realize by increasing for the manufacture of the way of the pipe rib of flexible hose.The height of recess/protuberance is preferably between 4 to 6 millimeters.Adding senior executive's rib causes ribbed pipe compressive strength to obtain exceeding the raising of direct ratio.

Expand the pitch of ribbed pipe, preferably arrange in pairs or groups with increasing mutually of pipe rib.Because troclia adds apart from meaning that loss of weight volume exceedes the weightening finish volume that senior executive's rib brings, so troclia distance and the mutual collocation that adds senior executive's rib can reduce ribbed pipe weight, expanded the compressive strength of ribbed pipe simultaneously.In addition, the elasticity of higher pipe rib meeting bracing tube.

Select as one, electric wire can be arranged in pipe rib.For the pump unit that makes vacuum cleaner hose has electric power to be connected with pumping head, or for air stream in heating pipe in ventilation duct, this way is particularly useful.Pipe rib can have one or more pitches, as selection, can allow them have shades of colour, with such as the electric wire of various different models is installed.Select as one, only have the ribbed pipe of a pitch, can be wound around its pipe rib with various ways, to manufacture the ribbed pipe with two, three pitches.

Select as one, can, additional auxiliary small pipeline (for loading onto electric wire or alleviating suction burden, or transporting the mobile object of the second), be connected with at least one side of ribbed pipe inner wall surface.Auxiliary small pipeline can such as in ribbed pipe inwall one side, along ribbed pipe longitudinal extension, or in ribbed pipe inner wall surface, helically extends forward.On at least one side of ribbed pipe inwall, add this auxiliary small pipeline, make to be added on the covering leg of that side of inwall, be fixed up to a certain extent, consequently the elasticity of ribbed pipe has reduced.Therefore,, when add additional auxiliary small pipeline in ribbed pipe time, preferably to expand the width of inwall and/or outer wall recess.In view of expanding the elasticity of inwall and/or outer wall recess width meeting bracing tube, add the ribbed pipe of auxiliary small pipeline, with the collocation mutually that expands inwall and/or outer wall recess width, can cause surprisingly ribbed pipe elastic reinforcement, ribbed pipe to alleviate and than the less bending radius of ribbed pipe of not widening recess.Inwall and/or outer wall recess width, be at least preferably 0.5 millimeter, is at least preferably 1 millimeter.

Flexible hose can be manufactured by one of while helically winding, two or more pipe rib.Various pipe ribs can be the same, can be also different.If such as manufacture ribbed pipe by be wound around two the same pipe ribs simultaneously, the winding pitch of ribbed pipe can double, and distance between pitch inwall recess and/or protuberance that to be two front and back be connected remains unchanged.In addition, expand winding pitch and can cause the drag reduction to air in ribbed pipe.

Select as one, can be wound around multiple pipe rib by helically and manufacture ribbed pipe, now every winding one is enclosed, and just forms two or more inwall recesses and/or protuberance, and they are connected to each other by one or more binding sites.

Its inwall and/or outer wall are almost smooth flexible hoses made in accordance with the present invention, have various special purposes.For example, can be used as the ribbed pipe (such as respiratory system etc.) using in washing machine sewer pipe, curative activity, such as, ventilation system ribbed pipe in ventilation system ribbed pipe, building, for ribbed pipe, the pond cleaning systems etc. of central suction system, but its intention is not limited to these.

Brief description of the drawings

Further illustrate the present invention below in conjunction with Fig. 1 to 11.

It is almost smooth flexible hose product form that Fig. 1 shows a kind of its inwall.

Fig. 2 shows in detail the pipe rib being connected for the manufacture of the front and back of flexible hose shown in Fig. 1.

Fig. 3 illustrates that inwall is made in accordance with the present invention almost another product form of smooth flexible hose.

Fig. 4 illustrates the joint detail of the pipe rib being connected for the manufacture of front and back in the flexible hose shown in Fig. 3.

Fig. 5 illustrates that its inwall is made in accordance with the present invention almost another product form of smooth flexible hose.

Fig. 6 illustrates that internal and external walls is made in accordance with the present invention almost a kind of product form of smooth flexible hose.

Fig. 7 illustrates that its inwall is made in accordance with the present invention almost another product form of smooth flexible hose.

Fig. 8 illustrate in the state of curving inwardly, its inwall is almost another product form of smooth flexible hose made in accordance with the present invention.

Fig. 9 A and 9B are respectively flexible hose outermost shown in aduncate Fig. 8 and the detailed drawing of the inside part.

Figure 10 illustrate in the state of curving inwardly, its inwall is almost another product form of smooth flexible hose made in accordance with the present invention.

Figure 11 A and 11B are respectively flexible hose outermost shown in aduncate Figure 10 and the detailed drawing of the inside part.

Embodiment

Flexible hose shown in Fig. 1-11 includes the tube wall of fold, and the outmost top layer of this tube wall comprises outer wall protuberance 1 and the outer wall recess 2 that multiple front and back are connected.

Outer wall protuberance 1 on ribbed pipe top layer forms multiple inwall recesses 3 on the innermost top layer of tube wall.Two of the pipe rib part that these inwall recesses 3 are connected by front and back against inwall cover leg 10 and 11 and be covered with, in pipe, stream material can not enter.Those pipe ribs have the complementary shape of collocation mutually, and they have flexible hose is almost smooth inwall top layer.

The collocation part mutually that first and second inwall covers leg 10,11 can have any complementary shape that professional workforce considers appropriate.In Fig. 2,4,5,6,10 and 11, mutually against covering leg the 10, the 11st, the wedge shape covering mutually.In Fig. 7,8 and 9, mutually against inwall cover leg 10,11 and have the elliptical shape of mutual covering.

Article two, the shape of inwall covering leg 10,11 is preferably such, that is: when ribbed pipe being used when normal bending, no matter ribbed pipe is inside or bandy, inwall recess 3 should be capped, almost inaccessiable state of stream material in holding tube.In addition, two shapes that cover leg 10,11 are preferably such, and, no matter ribbed pipe is inwardly still outwardly-bent, it should make inwall top layer keep is almost smooth state.This situation of Fig. 8-11 explanation, these illustrate the flexible hose in the state of curving inwardly.Covering leg 10 and 11 is sliding and is covering mutually, makes inwall recess 3 keep sealing, and in pipe, stream material can not enter.When ribbed pipe curves inwardly, with Fig. 9 B and the ribbed pipe shown in 11B the inside part compare, it is light that the distortion of the ribbed pipe outermost part shown in Fig. 9 A and 11A is wanted.In addition, Fig. 8-11 explanation, by covering the complementary shape of leg 10 and 11, at ribbed pipe, in the time curving inwardly state, inwall top layer almost keeps smooth state.

Flexible hose shown in Fig. 1-11 includes the outermost top layer of fold, the multiple outer wall protuberances 1 and the recess 2 that before and after this top layer comprises, are connected.In Fig. 6, two of the pipe rib part that outer wall recess 2 is connected by front and back against inwall cover leg 12 and 13 and be covered with, make outer wall recess 2 keep separating mutually with pipe external environmemt.Those pipe ribs have the complementary shape of collocation mutually, and they have flexible hose is almost smooth inwall top layer.

First and second outer wall covers leg 12 can have with 13 collocation part mutually any complementary shape that professional workforce considers appropriate.Particularly first and second outer wall covers the collocation part mutually of leg 12 and 13, can have covering leg 10 and 11 from first and second inwall or different shapes.In Fig. 2, mutually against outer wall to cover leg 12 and 13 are the wedge shapes that cover mutually.Article two, to cover the shape of leg should be preferably such to outer wall, no matter ribbed pipe inwardly or when outwardly-bent, it should make outer wall recess 2 keep separating mutually with ribbed pipe outside environment.In addition, two shapes that cover leg are preferably such, and, no matter ribbed pipe outwards still curves inwardly, it will make outer wall top layer almost keep smooth.

Multiple covers can be to be only added on ribbed pipe outer wall top layer, or are only added on ribbed pipe inwall top layer, or be both added on ribbed pipe outer wall top layer, are also added on ribbed pipe inwall top layer.

Flexible hose made in accordance with the present invention, preferably carries out spiral helicine winding by the pipe rib part that front and back are connected and interconnects manufacturing.Fig. 1-2 and Fig. 5-11 illustrate flexible hose made in accordance with the present invention, therein, the pipe rib part that front and back are connected be by two against two of pipe rib part against setting leg 5 and 7 realize and being connected.

In order to realize this connection, pipe rib shown in Fig. 1-2 and 6-11 has S word shape, this pipe rib has first and second setting leg 5 and 6, they lie low leg 8 separately by Article 1, to form ribbed pipe outer wall protuberance 1, also have Article 3 erect leg 7 and Article 2 against the leg 9 that lies low, they and Article 2 are erect the outer wall recesses 2 of the common formation ribbed pipes of leg 6.In Fig. 5, outer wall recess is covered leg 10 and is formed by lie low leg 9 and Article 1 inwall of second and third setting leg 6 and 7, Article 2.

Interconnecting of the pipe rib part that front and back are connected is to be connected together and to realize with the Article 1 setting leg 5 of next pipe rib by the Article 3 of first pipe rib being erect to leg 7.First and second inwall covers leg 10 and 11 and extends towards opposite direction from second two ends that leg 9 faces toward mutually that lie low.Length and shape that first and second inwall covers leg 10 and 11 should be such, and inwall recess 4 should be arranged in pairs or groups and cover to their end mutually, and also should make flexible hose have is almost smooth inwall top layer, no matter ribbed pipe is inside or bandy.

Pipe rib shown in Fig. 6 has S word shape, this pipe rib has first and second setting leg 5 and 6, they lie low leg 8 separately by Article 1, to form ribbed pipe outer wall protuberance 1, also have Article 3 erect leg 7 and Article 2 against the leg 9 that lies low, they and Article 2 are erect the outer wall recesses 2 of the common formation ribbed pipes of leg 6.Interconnecting of the pipe rib part that front and back are connected is to be connected together and to realize with the Article 1 setting leg 5 of next pipe rib by the Article 3 of first pipe rib being erect to leg 7.First and second inwall covers leg 10 and 11 and extends towards opposite direction along its elongation line from second two ends that leg 9 faces toward mutually that lie low.Length and shape that first and second inwall covers leg 10 and 11 should be such, and inwall recess 3 should be arranged in pairs or groups and cover to their end mutually, and also should make flexible hose have is almost smooth inwall top layer, no matter ribbed pipe is inside or bandy.First and second shown in Fig. 6 outer wall covers leg 12 and 13 and extends towards opposite direction from Article 1 leg 8 end vis-a-vis that lies low.Length and shape that first and second outer wall covers leg 12 and 13 should be such, and inwall recess 2 should be arranged in pairs or groups and cover to their end mutually, and also should make flexible hose have is almost smooth inwall top layer, no matter ribbed pipe is inside or bandy.

Select as one, the connection between two pipe rib parts that are connected in front and back can not realize vertically, but flatly realize, namely by against the leg realization of lying low.For example, Fig. 3 and 4 shows this situation, and now pipe rib has the leg 14 that lies low of an interpolation, and it is connected to each other together with the Article 2 of the pipe rib the being connected leg 9 that lies low.

Flatly realize if connected, can use the pipe rib of a S word shape, as the lying low shown in leg 14 with an interpolation at Fig. 2.Those pipe ribs preferably do not comprise Article 3 and erect leg, shown in Fig. 3 and 4.With the leg 14 that lies low of shorter interpolation, more replace tubes rib Article 3 is erect leg 7, will cause ribbed pipe to alleviate, and needs raw material still less because manufacture ribbed pipe, and expense has also been saved.

Claims (10)

1. one kind includes the flexible hose of the tube wall of fold, its outer wall top layer comprises outer wall protuberance (1) and the recess (2) that multiple front and back are connected, its inwall top layer comprises multiple inwall protuberances (4) and recess (3), each inwall protuberance (4) and recess (3) lay respectively at corresponding outer wall recess (2) and protuberance (1) below, it is characterized in that, there is the tube wall of fold to comprise multiple covers, be used for covering each recess of multiple inwall recesses (3) and/or outer wall recess (2), in described multiple covers, the Article 1 that each cover comprises the first pipe rib part covers leg (10, 12) and against second pipe rib part, cover leg Article 2 vis-a-vis with Article 1 and cover leg (11, 13), and Article 1 covers leg (10, 12) and Article 2 cover leg (11, 13) cover mutually along the longitudinal component ground of ribbed pipe, and there is complementary shape, so that inside and/or can be along sliding over each other when outwardly-bent at ribbed pipe, almost smooth inwall and/or outer wall top layer forming.

2. according to flexible hose claimed in claim 1, it is characterized in that, multiple Article 1 cover leg (10,12) and are arranged in the opposite of the relative end of the leg that lies low of a recess of multiple inwall recesses (3) and/or outer wall recess (2) with at least one in Article 2 covering leg (11,13), and extend towards opposite direction along the leg elongation line that lies low.

3. according to flexible hose claimed in claim 1, it is characterized in that, Article 1, cover the wedge shape that at least one in leg (10,12) and Article 2 covering leg (11,13) has mutual covering, for covering each recess of multiple inwall recesses (3) and/or outer wall recess (2).

4. according to the flexible hose one of claim 1-2 Suo Shu, it is characterized in that, Article 1, covering at least one in leg (10,12) and Article 2 covering leg (11,13) has the elliptical shape of mutual covering, for covering each recess of multiple inwalls (3) and/or outer wall (2) recess.

5. according to flexible hose claimed in claim 1, it is characterized in that, Article 1 covers at least one in leg (10,12) and Article 2 covering leg (11,13) and almost in same plane, is stretching.

6. according to flexible hose claimed in claim 1, it is characterized in that, the pitch of flexible hose, the distance between inwall recess and/or outer wall recess that front and back are connected is 5 millimeters.

7. for the manufacture of a pipe rib for the flexible hose according to one of claim 1-6 Suo Shu, it is characterized in that, this pipe rib comprises following part:

-U font part, it is erect leg and is formed by lie low Article 1 (5) that leg (8) separates and Article 2 (6) of Article 1, is used to form ribbed pipe outer wall protuberance (1),

-Article 2 the leg (9) that lies low, it erects leg (6) along being roughly parallel to lie low leg (8) but extend towards the direction contrary with it of Article 1 from Article 2, for forming a part for ribbed pipe inwall,

-Article 1 (10,12) and Article 2 (11,13) inwall and/or outer wall cover leg, they are against Article 2 leg (9) and/or Article 1 leg (8) end vis-a-vis that lies low that lies low, direction is away from each other

-Article 1 (10,12) and Article 2 (11,13) inwall and/or outer wall cover leg and have complementary shape, so that inside and/or can, along sliding over each other, be almost smooth inwall and/or outer wall top layer forming when outwardly-bent at ribbed pipe.

8. according to pipe rib claimed in claim 7, it is characterized in that, this pipe rib also comprises Article 3 and erects leg (7), it from Article 1 cover joint that leg (10) and Article 2 lie low between leg (9) along substantially and Article 1 erect the parallel direction of leg (5) and extend, to have formed S word shape pipe rib.

9. according to the pipe rib one of claim 7-8 Suo Shu, it is characterized in that, this pipe rib also comprises the Article 3 leg (14) that lies low, and it erects leg (5) along roughly extending with the Article 1 parallel direction of leg (8) that lies low from Article 1.

10. one kind according to the manufacture method of the flexible hose of one of claim 1-6, the method is wound around according to pipe rib claimed in claim 9 and is manufactured described flexible hose by helically, it is characterized in that, winding should be carried out like this, the Article 3 of the first pipe rib leg (14) that lies low must be at least in part covers mutually with the lie low part of leg (9) of the Article 2 of the pipe rib being connected, and the lie low mutual cover part of leg (14) of now Article 2 must be lain low leg (9) and Article 3 is interconnected.