CN1288380C

CN1288380C - Hose connection structure

Info

Publication number: CN1288380C
Application number: CNB038125145A
Authority: CN
Inventors: 岛崎勉
Original assignee: Toyox Co Ltd
Current assignee: Toyox Co Ltd
Priority date: 2002-05-31
Filing date: 2003-05-14
Publication date: 2006-12-06
Anticipated expiration: 2023-05-14
Also published as: TW200406557A; JPWO2003102459A1; AU2003235292A1; CN1656335A; TWI266021B; HK1080133A1; JP3587521B2; WO2003102459A1

Abstract

A metal press-worked component (2) is put over the outer periphery of a resin molded component (1) positioned on the inner side of a fastening component (A) and locking protrusions (2a, 2b) projecting into an inner side formed at the end of this press-worked component are allowed to engage the resin molded component so as to prevent the resin molded component from coming off the press-worked component, and a rotation locking means (3) is formed over the resin molded component and the press-worked component to integrate the both in a peripheral direction, thereby enabling fastening to the outer thread portions (B2, B4) of a hose connector (B). Accordingly, the weight is reduced while damage is prevented by increasing the surface hardness of the fastening component, and a plurality of screw specifications can be satisfied by only changing a resin molded component.

Description

Hose connecting structure

Technical field

The present invention relates to a kind of occasion that for example connects water spray utensil such as shower nozzle and water supply accessories such as Water supply switch valve or hot water hybrid switch with flexible pipe such, be used for flexible pipe is connected to hose connecting structure on the hose connector.

In detail, be by with columnar connected element (acorn nut) freely rotatably intercalation connect the periphery of end at flexible pipe, the internal thread part that is located at quarter on the inner peripheral surface of this connected element is tightened on the external thread part of hose connector, be thus connected both, make the hose connecting structure of the external thread part of its periphery that covers these flexible pipes connection ends and hose connector.

Background technique

In the prior art, have as this hose connecting structure: the connected element (utensil connection nut) of intercalation on the periphery of flexible pipe connection end is metal machined components, be inserted in the interior week that flexible pipe connects the end in bamboo shoots shape portion with pipe joint, make after it is against on the lip part, the intercalation of the tight tube of moat is also clamped in its periphery, it is become one, then, the internal thread part that is located at quarter on the end inner peripheral surface of above-mentioned connected element is tightened on the external thread part of water spray utensil (shower nozzle), be against on the end of the tight tube of moat and in the anti-flexible pipe portion of coming off that forms on the other end inner peripheral surface of this connected element thus and engage with it, connect both, make it cover periphery and external thread part (for example, with reference to patent documentation 1) that these flexible pipes connect the end.

[patent documentation 1]

The real fair 2-13832 communique (the 1st page, Fig. 5, Fig. 6) of Japanese patent gazette.

[patent documentation 2]

Real fair 1-40397 number (1-2 page or leaf, Fig. 1, the Fig. 2) of Japanese patent gazette.

In addition, also have: (utensil connects the attaching parts of intercalation on the periphery of flexible pipe connection end Connect and use nut) be metal machined components, the urceolus intercalation is being connected the end at flexible pipe Periphery, make after it becomes one, will be located at quarter on the end inner peripheral surface of above-mentioned attaching parts Internal thread part be tightened on the external thread part of water supply accessory (tap accessory), thus at this Form on the other end inner peripheral surface of attaching parts lock on the end that stage portion is against urceolus and with Its engaging connects both, makes it cover periphery and external thread part that these flexible pipes connect the end (for example, with reference to patent documentation 2).

Antirust usefulness is carried out on surface to so metal machined components-attaching parts Electroplating processes.

But the problem that so existing hose connecting structure exists is: owing to use metal Machined components-the attaching parts of system so process accurately attaching parts, are not only spent Take staff and time, and must carry out to its surface the electroplating processes of antirust usefulness, only this one The branch manufacturing cost has just improved, and, because the weight of attaching parts is heavier, so operation is stranded Difficult.

Have again, the problem that exists is: for example, generally speaking, be located at the external thread part on water spray utensil such as shower nozzle or the water supply accessory quarter, screw thread specification differences such as its pitch of each connecting vessels or shape in order to deal with these all situations, must be made the connected element of the special use that can screw with the screw thread of multiple different size respectively, carry out stock control respectively, the cost height.

Particularly, in the occasion that is connected with water spray utensil such as shower nozzle, the problem of existence is: because connected element is entrenched on the suspension bracket, hangs over removedly on the wall, so, along with the dismounting of connected element, the surface is damaged easily, if the high words of usage frequency, electrodeposited coating peels off easily, expose metal covering,, produce corrosion owing to easy moistening corrosion of Environmental Conditions, therefore, aesthetic measure significantly reduces.

In addition, the problem of existence is: pyroconductivity is bigger generally speaking owing to the metal that constitutes whole connected element, so in the occasion that high-temperature water passes through, its heat promptly is delivered to the surface of connected element, surface temperature rises, and therefore, the people might be scalded.

Therefore, in order to address these problems, what have makes plastic molded component with whole connected element, and its surface is electroplated.

But this connected element is except being defined as the synthetic resin that can electroplate, because surface hardness is low, and injured surface easily, commodity price is low, and, to compare with metal parts, electrodeposited coating peels off easily, and existence can scratch the problem that hand or extension pull hair and so on.

Summary of the invention

Therefore, in the present invention, the invention that technological scheme 1 is put down in writing, its purpose is exactly to improve the surface hardness of connected element, can prevent damage, again can weight reduction, and, for a plurality of screw thread specifications, only, just can solve by changing resin-molded component.

The invention that technological scheme 2 is put down in writing, except the goal of the invention that technological scheme 1 is put down in writing, its purpose wants exactly to prevent that damage from improving Security, and is not yielding again.

Technological scheme 3,4 inventions of being put down in writing, except

technological scheme

1 or 2 goals of the invention of being put down in writing, its purpose is exactly the rotation-preventing mechanism that a kind of serviceability excellence will be provided.

The invention that technological scheme 5 is put down in writing is except

technological scheme

1,2,3 or 4 goals of the invention of being put down in writing, even its purpose wants not crooked punch process parts can prevent that also resin-molded component from coming off.

In order to achieve the above object, in the present invention, the invention that technological scheme 1 is put down in writing, it is characterized in that: be used on the inner peripheral surface and carve the plastic molded component and the intercalation that are provided with the internal thread part that the external thread part with hose connector screws and constitute connected element at the metal punch process parts of the periphery of this resin-molded component, end at these punch process parts forms side-prominent in it, the card that the Drop-proof that engages with resin-molded component is used ends teat, and, on these resin-molded components and punch process parts, be formed for making both along the rotation-preventing mechanism that circumferentially becomes one.

The effect of the invention that the technological scheme 1 that is produced by such structure is put down in writing is: by with the periphery of metal punch process parts intercalation at the resin-molded component of the inboard that is positioned at connected element, make at the card formation of the end of these punch process parts, that give prominence to the inside and end teat and resin-molded component engaging, prevent that resin-molded component from splitting away off from the punch process parts, and, by on these resin-molded components and punch process parts, forming rotation-preventing mechanism, both can be tightened on the external thread part of hose connector along circumferentially becoming one.

The invention that technological scheme 2 is put down in writing, it is characterized in that: on the basis of the structure of the invention that technological scheme 1 is put down in writing, increased card that above-mentioned Drop-proof uses and ended teat and the end rounded of punch process parts is become circular section roughly and form flanging part or to the structure of the end of resin-molded component bending punch process parts.

The effect of the invention that the technological scheme 2 that is produced by the structure of appending is like this put down in writing is: become roughly circular section to form flanging part or to the resin-molded component bending by the end rounded with the punch process parts, therefore the cutting end face of punch process parts can not expose, and has improved the intensity of punch process parts.

The invention that technological scheme 3 is put down in writing, it is characterized in that: on the basis of the structure of

technological scheme

1 or 2 inventions of being put down in writing, increased above-mentioned rotation-preventing mechanism and be the outer circumferential face of resin-molded component and with the inner peripheral surface of its opposed punch process parts on, make their structures of engagement portion of formation engage mutually respectively.

The effect of the invention that the technological scheme 3 that is produced by the structure of appending is like this put down in writing is: engage mutually by making in engagement portion that forms on the outer circumferential face of resin-molded component and the engagement portion that forms on the inner peripheral surface of punch process parts, both can be tightened on the external thread part of hose connector along circumferentially becoming one.

The invention that technological scheme 4 is put down in writing, it is characterized in that: on the basis of the structure of

technological scheme

1 or 2 inventions of being put down in writing, increased above-mentioned rotation-preventing mechanism and on the opposed part of the end of the end face portion of resin-molded component and punch process parts opposed, formed along the circumferential structure of chimeric engagement portion mutually with it.

The effect of the invention that the technological scheme 4 that is produced by the structure of appending is like this put down in writing is: by making in the engagement portion that forms on the end face portion of resin-molded component and the engagement portion that forms on the end of punch process parts along circumferentially engaging mutually, two engagement portions can be tightened on the external thread part of hose connector along circumferentially becoming one.

The invention that technological scheme 5 is put down in writing, it is characterized in that: on the basis of the structure of

technological scheme

1,2,3 or 4 inventions of being put down in writing, increased and to be formed into the card of using than above-mentioned Drop-proof and to end all little resin-molded component intercalation of the internal diameter of any one party of teat in the punch process parts, make the resin-molded component of this intercalation end the structure that teat engages, prevents that resin-molded component from coming off with a side card indirectly or directly by hole enlargement mechanism.

The effect of the invention that the technological scheme 5 that is produced by the structure of appending is like this put down in writing is: end all little resin-molded component intercalation of any one internal diameter of teat in the punch process parts by making the card of using than Drop-proof, the resin-molded component that makes this intercalation with hole enlargement mechanism indirectly or directly end teat with a card and engage, prevent that resin-molded component from coming off, thereby, need behind the intercalation resin-molded component, not carry out bending to the punching press processing component in order to prevent to come off.

Description of drawings

Fig. 1 is the plan view that cuts a part of the hose connecting structure of expression one embodiment of the invention, and major component is amplified.

Fig. 2 is along amplification view that Fig. 1 (2)-(2) line dissects.

Fig. 3 amplifies and the plan view of the partial cut-out part represented decomposing state.

Fig. 4 is the sectional view that amplify the part of the hose connecting structure of expression other embodiments of the invention.

Fig. 5 is the sectional view that amplify the part of the hose connecting structure of expression other embodiments of the invention.

Fig. 6 is the enlarged front view that cut a part of the water tap of expression other embodiments of the invention with the water orifice accessory.

Fig. 7 is the worm's eye view that the water tap among Fig. 6 is used the water orifice accessory.

Fig. 8 is the vertical profile plan view that the water tap in the presentation graphs 6 is used the decomposing state of water orifice accessory.

Fig. 9 is the enlarged front view that cut a part of the water tap of expression other embodiments of the invention with the water orifice accessory.

Figure 10 is the vertical profile plan view that the water tap in the presentation graphs 9 is used the decomposing state of water orifice accessory.

Figure 11 is the enlarged front view that cut a part of the water tap of expression other embodiments of the invention with the water orifice accessory.

Figure 12 is the vertical profile plan view that the water tap among expression Figure 11 is used the decomposing state of water orifice accessory.

Figure 13 is the enlarged front view that cut a part of the water tap of expression other embodiments of the invention with the water orifice accessory.

Figure 14 is the vertical profile plan view that the water tap among expression Figure 13 is used the decomposing state of water orifice accessory.

Figure 15 is the enlarged front view that cut a part of the water tap of expression other embodiments of the invention with the water orifice accessory.

Figure 16 is the vertical profile plan view that the water tap among expression Figure 15 is used the decomposing state of water orifice accessory.

Figure 17 is the enlarged front view that cut a part of the water tap of expression other embodiments of the invention with the water orifice accessory.

Figure 18 is the vertical profile plan view that the water tap among expression Figure 17 is used the decomposing state of water orifice accessory.

Figure 19 is the cross-sectional plan view of resin-molded component.

Embodiment

Below, according to accompanying drawing embodiments of the invention are described.

It shown in this embodiment the hose connecting structure that Flexible pipe for nozzle is used, as Fig. 1～shown in Figure 3, connect end H1 with one of flexible pipe H and be connected as hose connector B, carve on the external thread part B2 on the end outer circumferential face that is located at water spray utensil B1 such as shower nozzle, simultaneously another is connected end H1 and be connected as hose connector B, carve on the external thread part B4 on the end outer circumferential face of the water supply accessory B3 that is located at Water supply switch valve or hot water hybrid switch etc.

The employed connected element A of this hose connecting structure is made of plastic molded component 1 and metal punch process parts 2, molded component 1 is carved the external thread part B2 that is provided with above-mentioned hose connector B on the side face within it, the internal thread part 1a that B4 screws, 2 intercalations of punch process parts are in the periphery of this resin-molded component 1, occasion in illustrative example, though these resin-molded components 1 and punch process parts 2 are made near the external diameter of the link side of hose connector B than the bigger thin cylindrical shape of front end of the external diameter of flexible pipe side, but be not limited to this, also can make the roughly the same cylindrical shape of external diameter of link side and flexible pipe side.

And, in the different occasion of screw thread specification of external thread part B2, the B4 of hose connector B, must make in advance and carve a plurality of resin-molded components 1 that are provided with the internal thread part 1a that can screw with it.

Above-mentioned resin-molded component 1 usefulness for example synthetic resin such as polyacetal resin is made cylindrical shape, at one end inner peripheral surface (in the occasion of present embodiment, only be the inner peripheral surface of link side) go up to carve and establish internal thread part 1a, and, make with the internal diameter of punch process parts 2 described later its external diameter roughly the same or smaller than it, as shown in Figure 3, make it freely this resin-molded component 1 be put into or to take out from any one opening portion at least of two opening portions of punch process parts 2.

Above-mentioned punch process parts 2 usefulness excellent corrosion resistances and make cylindrical shape by the metal that lapped face sends light, as its material, for corrosion resistance and the consideration that is easy to the processing aspect, for example preferably use stainless steel etc., on the end of these punch process parts 2, form the card that Drop-proof side-prominent in it, that engage with resin-molded component 1 uses and end

teat

2a, 2b.

Occasion at present embodiment, as shown in Figure 3, after resin-molded component 1 is inserted into the inside of punch process parts 2, bending is carried out at two end part to punching press processing component 2, be made for the card that Drop-proof uses and end

teat

2a, 2b is to resin-molded component 1, be projected into the inboard, make these cards end

teat

2a, 2b at least any one, be that the card that forms on the end that only makes in the large diameter link side of punch process parts 2 ends teat 2a and is stuck on the outer periphery of large diameter link side of resin-molded component 1 in illustrated embodiment, therefore, resin-molded component 1 can not move, and can prevent that it from coming off.

In addition, also can be with before resin-molded component 1 intercalation be in punch process parts 2, by being made the cross section, the end rounded of the link side of these punch process parts 2 is roughly circular shape, carry out crimping processing, be pre-formed flanging part 2c, simultaneously, it is the U font that the end of flexible pipe side that will be opposite with it becomes the cross section to resin-molded component 1 bending, be pre-formed card and end teat 2b, after the opening portion from the link side of punch process parts 2 inserts resin-molded component 1, above-mentioned flanging part 2c is carried out moat tightly to be processed, make its diameter reduction, form card thus and end teat 2a.

Have again, the card that forms on the end of the flexible pipe side of above-mentioned punch process parts 2 ends teat 2b, the front-end edge of its U font has as the come off function of the 2d of portion of anti-flexible pipe, this anti-flexible pipe come off the 2d of portion be connected tightly end butt, the engaging of a D of moat that end H1 makes one with flexible pipe described later.

And, on this resin-molded component 1 and punch process parts 2, be formed with and be used to make both along the rotation-preventing mechanism 3 that circumferentially becomes one.

In the occasion of present embodiment, this rotation-preventing mechanism 3 be on the inner peripheral surface of the outer circumferential face of resin-molded component 1 and punch process parts 2 opposed, make with it, make their respectively mutually

chimeric engagement portion

3a, 3b.

Occasion in illustrative example, as shown in Figure 2, circumferentially equally spaced be arranged with the engagement portion 3a of the concavity that extends to direction of insertion in the outer circumferential face upper edge of resin-molded component 1 ... at the circumferentially equally spaced prominent engagement portion 3b... that establishes the convex of extending in the inner peripheral surface upper edge of punch process parts 2 to direction of insertion, thus, under the state of resin-molded component 1 intercalation vertically in punch process parts 2, chimeric these engagement portions 3a..., 3b..., make it can not be along rotating in a circumferential direction, can not dally, and, above-mentioned engagement portion 3a, the number of 3b is not limited to illustrated 8, both can be below this, also can be more than this.

In addition, above-mentioned flexible pipe H preferably will be rolled into helical as the braided fabric (reinforced wire) of such internal layer Ha of diagram and the reinforced layer Hc between the outer Hb and make the multi-layer flexible pipe (braided fabric flexible pipe) of one or to be the reinforcing material of band shape of rectangle and cross section make the spiral reinforced hose of one (Off オ-ラ Application ホ-ス) for the reinforcing material of the wire of circle is rolled into helical in the cross section that has metallochrome to the major general surface of the reinforcing material between opaque internal layer and transparent skin that will not show as figure.

In addition, also can be between skin and internal layer, only reel the cross section be the banded reinforcing material of rectangle and cross section for any one reinforcing material in the wire reinforcing material of circle make one or for example thread reinforcing material such as braided glass fibre or flame retardancy fiber or be rolled into the well-known in the past soft flexible tube that helical is made one, or the flexible pipe of single layer structure.

Below, describe by the connecting means of process sequence such hose connecting structure.

At first, as shown in figures 1 and 3, with the periphery of metal punch process parts 2 intercalations to the resin-molded component 1 of the inboard that is positioned at connected element A, make the end card that form, that give prominence to the inside of these punch process parts 2 of bending

end teat

2a, 2b and resin-molded component 1 engaging, and, on this resin-molded component 1 and punch process parts 2, form rotation-preventing mechanism 3.

Prevent that thus resin-molded component 1 from splitting away off from punch process parts 2, make connected element A, and resin-molded component 1 and punch process parts 2 can be tightened on external thread part B2, the B4 of hose connector B along circumferentially making one.

Consequently, can by punch process parts 2 improve connected element A surface hardness, prevent surface failure, again can weight reduction, and, even the screw thread specification difference of external thread part B2, the B4 of hose connector B, carve a plurality of resin-molded components 1 that are provided with the internal thread part 1a that screws with it if make in advance, then, just can solve only by changing resin-molded component 1.

Particularly, if make punch process parts 2 with excellent corrosion resistance and by the metals such as for example stainless steel that lapped face sends light, then do not need to be used for antirust electroplating processes, and, even the surface failure of punch process parts 2 can not corrode, consequently yet, also have the manufacture cost that can further reduce connected element A, and can prevent the advantage that aesthetic measure that the generation owing to corrosion causes descends.

Have again, occasion at present embodiment, owing to becoming the cross section to be roughly circular arc, the end rounded with the link side of punch process parts 2 forms flanging part 2c, and the end of flexible pipe side is become the cross section to resin-molded component 1 bending is that the U font forms card and ends teat 2b, thus, can not expose the cutting end face of punch process parts 2, and improve intensity.

Consequently, can not touch the cutting end face of punch process parts 2 because finger waits, thus have can prevent injured, improve not yielding and so on the advantage of Security and whole punch process parts 2.

In addition, by making engagement portion 3a that on the outer circumferential face of the resin-molded component 1 that constitutes rotation-preventing mechanism 3, forms and the engagement portion 3b that on the inner peripheral surface of punch process parts 2, forms chimeric mutually, both can tighten on external thread part B2, the B4 of hose connector B along circumferentially becoming one.

Consequently, owing to can guarantee that the chimeric area of engagement portion 3a..., 3b... is bigger, so have the advantage of the rotation-preventing mechanism 3 that the serviceability excellence can be provided.

And, as shown in Figure 3, at the connected element A sleeve that will make like this after the H1 of the connection end of flexible pipe H, the same with it, with the tight tube of moat described later D sleeve on the H1 of the connection end of flexible pipe H, then, make it be against lip part C2 in interior week with what the bamboo shoots shape C1 of portion of pipe joint C was inserted into that this flexible pipe connects end H1, then, move the tight tube of above-mentioned moat D to its periphery and seize on both sides by the arms, make this flexible pipe connection end H1, pipe joint C and the tight tube of moat D form one thus.

Then, if connected element A is moved to hose connector B side respectively, the internal thread part 1a of each punch process parts 2 is tightened on external thread part B2, the B4 of hose connector B, then the anti-flexible pipe that forms in the end of the flexible pipe side of these punch process parts 2 2d of portion (card ends teat 2b) that comes off supports with the end of the tight tube of moat D and fastens with it, prevent that flexible pipe from connecting end H1 and splitting away off from connected element A, and, connect both, make it cover periphery and external thread part B2, B4 that each flexible pipe connects end H1.

On the other hand, Fig. 4 and hose connecting structure, Fig. 6～Fig. 8, Fig. 9, Figure 10 and Figure 11 shown in Figure 5, hose connecting structure, Figure 13, Figure 14, Figure 15, Figure 16 and Figure 17～hose connecting structure shown in Figure 19 shown in Figure 12 are respectively other embodiments of the invention.

In illustrated embodiment, only show the connected element A that is connected with water spray utensil B1 such as shower nozzle as hose connector B, because the connected element that is connected with water supply accessory B3 such as Water supply switch valve or hot water hybrid switch is same structure, so omitted.

Fig. 4 and shown in Figure 5 be the modified example that the card that forms on the end of the link side of above-mentioned punch process parts 2 ends teat 2a.

Hose connecting structure shown in Figure 4, on the end of the link side of above-mentioned punch process parts 2, do not form flanging part 2c, but become the cross section to be roughly the L font to resin-molded component 1 bending the end of link side, form thus and opposed with it, be arranged with the card that Drop-proof that the 1b of circular step portion on the outer circumferential face of the link side of resin-molded component 1 engages uses and end teat 2a ', the embodiment of this structure and above-mentioned Fig. 1～shown in Figure 3 is different, and the embodiment of structure in addition and Fig. 1～shown in Figure 3 is identical.

Hose connecting structure shown in Figure 5, on the end of the link side of above-mentioned punch process parts 2, do not form flanging part 2c, but become the cross section to be roughly acute angle shape to resin-molded component 1 bending the end of link side, form the card that the Drop-proof that engages with the 1c of circular step portion that is arranged with on the outer circumferential face of the link side of resin-molded component 1 uses and end teat 2a "; the embodiment of this structure and above-mentioned Fig. 1～shown in Figure 3 is different, and the embodiment of structure in addition and Fig. 1～shown in Figure 3 is identical.

Therefore, Fig. 4 and hose connecting structure shown in Figure 5 can obtain and above-mentioned Fig. 1～same work effect of embodiment shown in Figure 3, and, compare with the embodiment of above-mentioned Fig. 1～shown in Figure 3, only do not form flanging part 2c and just have the processing of simplifying punch process parts 2, the advantage that can further reduce its manufacture cost.

Fig. 6～shown in Figure 12 is the modified example of above-mentioned rotation-preventing mechanism 3, this rotation-preventing mechanism 3 is in the opposed part of the end of the end face portion of resin-molded component 1 and punch process parts 2 opposed with it, form along circumferentially mutual

chimeric engagement portion

3c, 3d, make its surface not produce concavo-convex at punch process parts 2, each embodiment of this structure and above-mentioned Fig. 1～shown in Figure 5 is different, and each embodiment of structure in addition and Fig. 1～shown in Figure 5 is identical.

In the occasion that is the hose connecting structure of Fig. 6～shown in Figure 8, on the end face portion of the flexible pipe side of resin-molded component 1, along the engagement portion 3c... of circumferentially equally spaced being equipped with convex, being processed into the cross section at the end bent of flexible pipe side that will punch process parts 2 opposed with it is that the card at right angle ends on the cutting end face of teat 2b ', along the engagement portion 3d... that circumferentially equally spaced is concaved with concavity, therefore, under the state of resin-molded component 1 intercalation vertically in these punch process parts 2, chimeric these engagement portions 3c..., 3d..., it can not can not be dallied along rotating in a circumferential direction.

Be Fig. 9, the occasion of hose connecting structure shown in Figure 10, on the end face portion of the flexible pipe side of resin-molded component 1, along the engagement portion 3c ' of circumferentially equally spaced being equipped with convex ..., being processed into the cross section at the end bent of flexible pipe side that will punch process parts 2 opposed with it is that the card of U font ends on the cutting end face of teat 2b, along the engagement portion 3d ' that circumferentially equally spaced is concaved with concavity ..., thus, under the state of resin-molded component 1 intercalation vertically in punch process parts 2, chimeric these engagement portions 3c ' ..., 3d ' ..., it can not can not be dallied along rotating in a circumferential direction.

Have again, the occasion of the hose connecting structure of Fig. 6～shown in Figure 10, it is that the card at right angle ends teat 2b ' that the end bent of the flexible pipe side of punch process parts 2 is processed into the cross section, or bending to become the cross section be that the card of U font ends teat 2b, do not engage ground with the end of the flexible pipe side of resin-molded component 1 outstanding to the inside, because these cards end teat 2b ', 2b can not have as the come off function of portion of anti-flexible pipe, so, on the inner peripheral surface of the flexible pipe side of resin-molded component 1, become to form with the end of the tight tube of moat D step-likely and support, the anti-flexible pipe 2d ' of portion that comes off of engaging.

Be Figure 11, the occasion of hose connecting structure shown in Figure 12, on the end face portion of the flexible pipe side of resin-molded component 1, along the engagement portion 3c of circumferentially equally spaced being equipped with convex " ...; being processed into the cross section at the end bent with the flexible pipe side of punch process parts 2 is that the card of U font ends on the teat 2b; with the mechanical vibrating part 2b that is pressed into tubular ", it is become one, can not rotate, and, at this vibrating part 2b " the end face of link side on; along the engagement portion 3d that circumferentially equally spaced is concaved with concavity " ..., thus, under the state of resin-molded component 1 intercalation vertically in these punch process parts 2, chimeric these engagement portions 3c " ...; 3d " ..., it can not can not be dallied along rotating in a circumferential direction.

Have again, the occasion of hose connecting structure shown in Figure 11, as Fig. 6 or shown in Figure 9, though not shown flexible pipe connects end H1, pipe joint C and the tight tube of moat D, but same with the embodiment of Fig. 1～shown in Figure 3, the U font front-end edge that the card that forms on the end of the flexible pipe side of above-mentioned punch process parts 2 ends teat 2b have as with the come off function of the 2d of portion of anti-flexible pipe that the end of the tight tube of moat D is supported, engaged.

Therefore, Fig. 6～Fig. 8, Fig. 9, Figure 10 and Figure 11, hose connecting structure shown in Figure 12, by making the engagement portion 3c that on the end face portion of resin-molded component 1, forms, 3c ', 3c " with the engagement portion 3d that on the end of punch process parts 2, forms; 3d ' and the vibrating part 2b that becomes one in the end with punch process parts 2 " go up the engagement portion 3d that forms " along circumferentially chimeric mutually; thereby; on the surface of punch process parts 2, can not produce concavo-convex; two engagement portion 3c; 3d, 3c ', 3d ', 3c "; 3d is " along circumferentially becoming one, can be tightened in the external thread part B2 of hose connector B, on the B4, so, can obtain and above-mentioned Fig. 1～same work effect of each embodiment shown in Figure 5, and, owing to can on the surface of punch process parts 2, not produce concavo-convex, so, also have the lip-deep advantage attached to connected element A such as the dirt that can prevent incrustation scale.

Figure 13～Figure 19, before the above-mentioned resin-molded component 1 of intercalation, the end of the processing punch process that prebends parts 2, the card that the formation Drop-proof is used ends

teat

2a, 2b, any one all little resin-molded component 1 of internal diameter that ends teat than these cards will be formed into, end teat 2a intercalation in punch process parts 2 from a card, the resin-molded component 1 that makes this intercalation with hole enlargement mechanism 4 indirectly or directly end teat 2a with a card and fasten, prevent that resin-molded component 1 from coming off, it can not be moved, each embodiment of this structure and above-mentioned Fig. 1～shown in Figure 12 is different, and each embodiment of structure in addition and Fig. 1～shown in Figure 12 is identical.

In the occasion that is Figure 13, hose connecting structure shown in Figure 14, the external diameter of resin-molded component 1 made to end the internal diameter of teat 2a than the card that forms on the end of the large diameter link side of above-mentioned punch process parts 2 little, and intercalation is in punch process parts 2, as hole enlargement mechanism 4, resin-molded component 1 and above-mentioned card in this intercalation end between the teat 2a, insert and hold under the arm, it is engaged indirectly, prevent that by holding this under the arm resin-molded component 1 from coming off into elastic cylinder 4a.

Above-mentioned elastic cylinder 4a makes cylindrical shape with the metal or the hard material of energy resiliently deformables such as spring steel, on its entire axial length, offer narrow slit 4a1, being cut into the cross section is the C font, thus, be made for external diameter and can enlarge or dwindle distortion freely, in the occasion of illustrative example, on an one end face, along circumferentially equally spaced having formed a plurality of card claw stop 4a2....

And, under the state that elastic cylinder 4a is inserted in the punch process parts 2, insert resin-molded component 1, the card claw stop 4a2... of elastic cylinder 4a is fastened on the fastening groove 1d of resin-molded component 1, and, make the other end 4a3 of elastic cylinder 4a be fastened on above-mentioned card and end on the teat 2a, supporting resin-molded component 1 can not move it.

In the occasion that is Figure 15, hose connecting structure shown in Figure 16, the external diameter of resin-molded component 1 made to end the internal diameter of teat 2a than the card that forms on the end of the large diameter link side of above-mentioned punch process parts 2 little, and intercalation is in punch process parts 2, as hole enlargement mechanism 4, ora terminalis and above-mentioned card at the resin-molded component 1 of this intercalation end between the teat 2a, insert and hold under the arm, it is engaged indirectly, prevent that thus resin-molded component 1 from coming off into elastic ring 4b.

Above-mentioned elastic cylinder 4b makes annular with the metal or the hard material of energy resiliently deformables such as spring steel, cuts its part, is the C font, therefore, is made for external diameter and can enlarges or dwindle distortion freely.

Have again, the occasion of the hose connecting structure of Figure 13～shown in Figure 16, though adopt Figure 11, modified example shown in Figure 12 as above-mentioned rotation-preventing mechanism 3, but be not limited to this, also can use each embodiment's of Fig. 6～Figure 10 or Fig. 1～shown in Figure 3 rotation-preventing mechanism 3, or use the rotation-preventing mechanism of structure in addition.

In the occasion that is the hose connecting structure of Figure 17～shown in Figure 19, above-mentioned resin-molded component 1 is made the structure of energy diameter reduction, the internal diameter that the card that its external diameter ratio is formed in the end of the large diameter link side of punch process parts 2 ends teat 2a is little, after resin-molded component 1 intercalation of structure that will this energy diameter reduction is in the punch process parts 2, this resin-molded component 1 is made its enlarged as hole enlargement mechanism 4, make its ora terminalis directly end teat 2a thus and engage, prevent that resin-molded component 1 from coming off with above-mentioned card.

The structure of the external diameter energy diameter reduction of so-called above-mentioned resin-molded component 1 is, occasion in illustrative example, a plurality of along circumferentially equally spaced offering to extending axially resin-molded component 1 ends teat 2a side at above-mentioned card half narrow slit 4c1 that highly locates, make its separation, and, outer circumferential face upper edge in the axial neutral position of resin-molded component 1 circumferentially is arranged with groove 4c2, shown in the double dot dash line of Figure 18, along with going into resin molded component 1 to punch process parts 2 interpolations, easily that the cutting plate 4c3... between each narrow slit 4c1... is flexibly crooked to the inside from the thin-walled portion of this groove 4c2, constitute diameter reduction structure 4c thus as above-mentioned hole enlargement mechanism 4.

And, if the external thread part B2 of above-mentioned hose connector B is screwed on the internal thread part 1a that carves on the inner peripheral surface that is located at this resin-molded component 1, then cutting plate 4c3... distinguishes enlarged, making its ora terminalis 4c4... be fastened on above-mentioned card ends on the teat 2a, support this resin-molded component 1, it can not be moved.

Have again, because on the surface of contact of the inner peripheral surface of the outer circumferential face of above-mentioned resin-molded component 1 and punch process parts 2, the engagement portion 3b... that adopts the engagement portion 3a... convex of using the illustrated mutual chimeric concavity of the embodiment shown in Fig. 1～3 is as above-mentioned rotation-preventing mechanism 3, so, only by being screwed into the external thread part B2 of above-mentioned hose connector B, both are along circumferentially just becoming one, but be not limited to this, also can use each embodiment's of Fig. 6～shown in Figure 12 rotation-preventing mechanism 3, or structure in addition.

In addition, owing to be accompanied by offering of above-mentioned narrow slit 4c1..., the area of contact of the inner peripheral surface of the outer circumferential face of resin-molded component 1 and punch process parts 2 reduces, therefore, because the possibility that exists water-stop degree between the two to reduce, so, lip ring P1 is installed between them, simultaneously between the end face of water spray utensil B1 such as shower nozzle and resin-molded component 1, lip ring P2 is installed also, so that have higher water sealing property.

Therefore, Figure 13～hose connecting structure shown in Figure 19, under with the state of resin-molded component 1 intercalation in punch process parts 2, owing to can enlarge freely, dwindling the elastic cylinder 4a of distortion or elastic ring 4b is clipped in a card and ends between teat 2a and the resin-molded component 1, as hole enlargement mechanism 4, it is engaged indirectly, prevent that thus resin-molded component 1 from coming off, or by with can diameter reduction resin-molded component 1 intercalation of structure in punch process parts 2, the resin-molded component 1 that makes this intercalation is as hole enlargement mechanism 4 enlarged, therefore its ora terminalis directly ends teat 2a with above-mentioned card and engages, prevent that resin-molded component 1 from coming off, so, can obtain and above-mentioned Fig. 1～same work effect of each embodiment shown in Figure 12, and, because need not be after intercalation resin-molded component 1, the bending punch process parts 2 in order to prevent it from coming off, so bending punch process parts 2 also can prevent the advantage that resin-molded component 1 comes off even also have not.

And, embodiment shown in the front, though show the situation of the hose connecting structure that the Flexible pipe for nozzle of water spray utensil B1 such as connecting shower nozzle and water supply accessory B3 such as Water supply switch valve or hot water hybrid switch uses, be not limited to this, also can be used to connect flexible pipe that industry in addition uses etc.

Thereupon, the shape of resin-molded component 1 and punch process parts 2 also is not limited to illustrated shape, if having same function, also can be other shape.

Have again, above-mentioned rotation-preventing mechanism 3 is not limited to above-mentioned form, it also can be the heat-resistant glue that is filled between the inner peripheral surface of the outer circumferential face of resin-molded component 1 and punch process parts 2, makes its sclerosis, or punch process parts 2 machineries are pressed into resin-molded component 1 relatively, perhaps also can be to inlay the form that forms resin-molded component 1 along the inner peripheral surface of punch process parts 2.

In these occasions, owing to can not produce concavo-convexly on the surface of punch process parts 2, can connect punch process parts 1 and resin-molded component 2 at an easy rate, and the outward appearance grace of connected element A so have, can prevent the advantage that dirt such as incrustation scale adheres to again.

Industrial applicibility

As described above, in the present invention, the invention that technological scheme 1 is put down in writing, because with the periphery of metal punch process parts 2 intercalations at the resin-molded component 1 of the inboard that is positioned at connected element A, make the outstanding to the inside card that forms in the end of these punch process parts 2

end teat

2a, 2b and resin-molded component 1 engaging, so, can prevent that resin-molded component 1 from splitting away off from punch process parts 2, and, owing on these resin-molded components 1 and punch process parts 2, be formed with rotation-preventing mechanism 3, thereby, both can be tightened in the external thread part B2 of hose connector B along circumferentially becoming one, on the B4, so, improved the surface hardness of connected element A, prevent damage, also alleviated weight, and, concerning a plurality of screw thread specifications, only just can adapt with it by changing resin-molded component 1.

Therefore, compare with the existing hose connecting structure that uses metal machined part-connected element, a large amount of production connected element A become and are easy to, the accurate to dimension height is without difficulty, can reduce manufacture cost significantly, and, minimizing along with connected element A weight, operation has become easily, and, even for example for the screw thread specification difference of the external thread part of each maker hose connector B, owing to can make 2 generalizations of punch process parts, so, the connected element of the special use that screws with the screw thread of making respectively with multiple different size, need carry out the situation of stock control respectively compares, cost is lower, and they mutually combine and can not reduce the function of hose connecting structure, thereby can significantly reduce whole price.

In addition, because middle punch process parts 2 across resin-molded component 1 configuration outer surface, so, with whole connected element is that the situation of metal machining product is compared, even high-temperature water is passed through, its heat also can be cut off by resin-molded component 1, and the surface temperature of connected element A can not rise, and can prevent scald fully.

Particularly, if use excellent anti-corrosion performance, and make the words of punch process parts 2 by the metal that lapped face sends light, the electroplating processes that does not then need antirust usefulness, and, even sustaining damage, the surface of punch process parts 2 can not corrode yet, consequently, can further reduce the manufacture cost of connected element A, and, can prevent owing to the decline that produces the aesthetic measure that corrosion causes, compare with the existing situation of the plastic molded component-connected element that uses the surface to electroplate, the synthetic resin that can use is not limited to the synthetic resin that can electroplate, not only surface easy damaged not can improve the price of commodity, and can prevent that the scuffing hand or the extension that cause owing to peeling off of electrodeposited coating from pulling phenomenons such as hair.

The invention of technological scheme 2 is on the basis of the invention effect of technological scheme 1, owing to become the cross section to be roughly circular shape the end rounded of punch process parts 2, form flanging part 2c, or to resin-molded component 1 bending, so, can not expose the cutting end face of punch process parts 2, and, improve the intensity of punch process parts 2, therefore, can prevent to sustain damage, improve Security, and, not yielding.

The invention of technological scheme 3, on the basis of the invention effect of

technological scheme

1 or 2, engage mutually owing to make at engagement portion 3a that forms on the outer circumferential face of resin-molded component 1 and the engagement portion 3b that on the inner peripheral surface of punch process parts 2, forms, so, both are along circumferentially becoming one, can be tightened on external thread part B2, the B4 of hose connector B, therefore, can provide the rotation-preventing mechanism of serviceability excellence.

The invention of technological scheme 4, on the basis of the invention effect of

technological scheme

1 or 2, owing to make at the engagement portion 3c that forms on the end face portion of resin-molded component 1 and the engagement portion 3d that on the end of punch process parts 2, forms along circumferentially engaging mutually, so, two

engagement portion

3c, 3d are along circumferentially becoming one, can be tightened on external thread part B2, the B4 of hose connector B, therefore, can provide the rotation-preventing mechanism 3 of serviceability excellence.

In addition, owing to can form

engagement portion

3c, 3d, 3c ', 3d ', 3c ", 3d ", it is concavo-convex that it is not produced on the surface of punch process parts 2, so, can prevent from the surface of connected element A, to adhere to dirts such as incrustation scale.

The invention of technological scheme 5, in

technological scheme

1,2, on the basis of 3 or 4 invention effect, owing to will make the card of using than Drop-proof and end teat 2a, all little resin-molded component 1 intercalation of the internal diameter of any one of 2b is in punch process parts 2, the resin-molded component 1 that makes this intercalation with hole enlargement mechanism 4 indirectly or directly with a card only teat 2a engage, prevent that resin-molded component 1 from coming off, so, because need not be after intercalation resin-molded component 1, in order to prevent to come off and bending punch process parts 2, therefore, even punching press processing component 2 is not carried out bending, can prevent that also resin-molded component 1 from coming off.

Therefore, particularly, in order to improve the surperficial luminosity of punch process parts 2, for example, carry out the occasion of hard plating such as nickel chromium triangle plating, have if the shortcoming that can crack on the electrodeposited coating at hard at the crooked punch process parts 2 of the assembling procedure after the electroplating processes and so on, but the present invention need be at the crooked punch process parts 2 of last assembling procedure, and, even the hard electroplating processes is carried out on the surface at punch process parts 2, can not crack yet, can prevent because the yield rate of the goods that this crackle causes reduces phenomenon.

Claims

1. hose connecting structure, with columnar connected element (A) can be freely rotatably intercalation in the periphery of the connection end of flexible pipe (H) (H1), by being tightened on the external thread part (B2, B4) of hose connector (B) at the internal thread part (1a) that establish quarter on the inner peripheral surface of this connected element (A), to cover the mode that these flexible pipes connect the external thread part (B2, B4) of the periphery of ends (H1) and hose connector (B) both are connected, it is characterized in that:

Be used in and carve the external thread part (B2 that is provided with hose connector (B) on the inner peripheral surface, the plastic molded component (1) of the internal thread part that B4) screws (1a), constitute above-mentioned connected element (A) with intercalation at the metal punch process parts (2) of the periphery of this resin-molded component (1), form the card that the Drop-proof that engages with resin-molded component (1) highlightedly to its inboard uses in the end of these punch process parts (2) and end teat (2a, 2b), and, stride these resin-molded components (1) and punch process parts (2) and be formed for making both along the rotation-preventing mechanism (3) that circumferentially becomes one.

2. hose connecting structure according to claim 1 is characterized in that: the card that above-mentioned Drop-proof is used ends teat (2a, 2b) and becomes the cross section to be roughly circular arc the end rounded of punch process parts (2) and form flanging part (2c) or bending is carried out towards resin-molded component (1) in the end of punch process parts (2).

3. hose connecting structure according to claim 1 and 2 is characterized in that: above-mentioned rotation-preventing mechanism (3) is to stride the outer circumferential face of resin-molded component (1) and the engagement portion (3a, 3b) that forms mutually respectively with the inner peripheral surface of its opposed punch process parts (2) with engaging.

4. hose connecting structure according to claim 1 and 2 is characterized in that: the opposed part that above-mentioned rotation-preventing mechanism (3) is striden the end of the end face portion of resin-molded component (1) and punch process parts opposed with it (2) forms along circumferentially chimeric mutually engagement portion (3c, 3d, 3c ', 3d ', 3c ", 3d ").

5. hose connecting structure according to claim 1 and 2, it is characterized in that: will be formed into the card of using than above-mentioned Drop-proof and end all little resin-molded component (1) intercalation of the internal diameter of any one party of teat (2a, 2b) in punch process parts (2), the resin-molded component (1) that makes this intercalation by hole enlargement mechanism (4) indirectly or directly end teat (2a) with a side card and engage prevents that resin-molded component (1) from coming off.

6. hose connecting structure according to claim 3, it is characterized in that: will be formed into the card of using than above-mentioned Drop-proof and end all little resin-molded component (1) intercalation of the internal diameter of any one party of teat (2a, 2b) in punch process parts (2), the resin-molded component (1) that makes this intercalation by hole enlargement mechanism (4) indirectly or directly end teat (2a) with a side card and engage prevents that resin-molded component (1) from coming off.

7. hose connecting structure according to claim 4, it is characterized in that: will be formed into the card of using than above-mentioned Drop-proof and end all little resin-molded component (1) intercalation of the internal diameter of any one party of teat (2a, 2b) in punch process parts (2), the resin-molded component (1) that makes this intercalation by hole enlargement mechanism (4) indirectly or directly end teat (2a) with a side card and engage prevents that resin-molded component (1) from coming off.