CN102893070A - Fire hose coupler - Google Patents

Fire hose coupler Download PDF

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Publication number
CN102893070A
CN102893070A CN2011800240300A CN201180024030A CN102893070A CN 102893070 A CN102893070 A CN 102893070A CN 2011800240300 A CN2011800240300 A CN 2011800240300A CN 201180024030 A CN201180024030 A CN 201180024030A CN 102893070 A CN102893070 A CN 102893070A
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CN
China
Prior art keywords
female joint
internal diameter
fire
cutting ferrule
inclination
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2011800240300A
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Chinese (zh)
Inventor
小口泰史
小口雅弘
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MARUKYO UNION CO Ltd
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MARUKYO UNION CO Ltd
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Filing date
Publication date
Application filed by MARUKYO UNION CO Ltd filed Critical MARUKYO UNION CO Ltd
Publication of CN102893070A publication Critical patent/CN102893070A/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C33/00Hose accessories
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00Couplings of the quick-acting type
    • F16L37/08Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/086Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of latching members pushed radially by spring-like elements

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Joints That Cut Off Fluids, And Hose Joints (AREA)

Abstract

Provided is a fire hose coupler wherein a female fitting can be easily coupled to a male fitting. A female fitting (2) of a fire hose coupler is provided with a receiving fitting (5), a fastening ring (6), a gripper seat (7), and coupling grippers (8). The receiving fitting (5) is provided with a substantially cylindrical seal disposing portion (5c) on which a seal member (11) is disposed, and a substantially cylindrical detachment prevention portion (5d) having an inner diameter smaller than the inner diameter of the seal disposing portion (5c), which prevents the seal member (11) from being detached toward the tip of the female fitting (2). The detachment prevention portion (5d) is disposed on the back of the gripper seat (7) when viewed from the tip of the female fitting (2), and an inclined surface (5e), the inner diameter of which gradually decreases from the tip toward the base end of the female fitting (2), is formed on the inner periphery of the detachment prevention portion (5d). The inclination angle of the inclined surface (5e) to the axial direction of the female fitting (2) is larger than the inclination angle of the outer peripheral surface of the tip portion of the male fitting to the axial direction of the male fitting.

Description

The fire-fighting hose coupling
Technical field
The present invention relates to the fire-fighting hose coupling of FERRULETYPE, this fire-fighting is used for a plurality of fire-fightings being connected to each other with flexible pipe or fire-fighting being connected with hydrant valve with flexible pipe with hose coupling.
Background technique
At present, as the fire-fighting hose coupling that a plurality of fire-fightings are connected to each other with flexible pipe, the known fire-fighting hose coupling that a kind of FERRULETYPE that is made of female joint and male joint is arranged, wherein, female joint is connected to fire-fighting with on the end of flexible pipe, male joint is connected to fire-fighting with on the end of flexible pipe, and female joint is fastened in (for example with reference to patent documentation 1) on the male joint in loading and unloading mode freely.
Use in the hose coupling in the fire-fighting that patent documentation 1 is put down in writing, female joint possesses: the bellmouth joint, and it is installed in fire-fighting with in the flexible pipe; Clamp ring, it is fixed on the forward end of bellmouth joint; Master jaw, it is configured in interior all sides of clamp ring; In conjunction with claw, its inner peripheral surface from master jaw is outstanding towards radially inner side; And leaf spring, it is to applying the power towards the radially inner side of master jaw in conjunction with claw.Interior all sides at the bellmouth joint are formed with Sealing configuration section and abjunction preventing part, and wherein, Sealing configuration section is used for disposing U-shaped Sealing, and the abjunction preventing part prevents that the U-shaped Sealing that is configured in the Sealing configuration section from coming off.The abjunction preventing part is in the inboard that is configured in master jaw when the forward end of female joint is observed.
[formerly technical paper]
[patent documentation]
Patent documentation 1: Japanese communique, JP 2005-147370 number
Summary of the invention
In recent years, with in the market of hose coupling, in order to improve its operability, use the demand of hose coupling to improve for the fire-fighting that easily female joint is fastened on the male joint in fire-fighting.
Therefore, problem of the present invention is, a kind of fire-fighting hose coupling that can easily female joint be fastened on the male joint is provided.
In order to solve above-mentioned problem, the present application people has carried out various researchs.The present application people infers that at first the active force in conjunction with the shape of claw or leaf spring can bring large impact towards the cutting ferrule of male joint to female joint, thereby for having carried out various researchs in conjunction with the shape of claw or the active force of leaf spring.But even change in conjunction with the shape of claw or the active force of leaf spring, female joint does not have much improvement towards the cutting ferrule of male joint yet.Therefore, the present application people further is studied, the shape that found that the abjunction preventing part that prevents that sealed member from coming off is brought large impact on female joint towards the cutting ferrule of male joint, and wherein, the abjunction preventing part is in the inboard that is configured in master jaw when the forward end of female joint is observed.
Fire-fighting of the present invention is based on above-mentioned new discovery with hose coupling and forms, it is a kind of fire-fighting hose coupling that possesses the FERRULETYPE of female joint and male joint, this fire-fighting is characterised in that with hose coupling female joint possesses: the bellmouth joint, and it can be connected with flexible pipe with fire-fighting; Clamp ring, it has roughly cylinder section cylindraceous and is installed on the bellmouth joint; Master jaw, it is installed in interior all sides of the cylinder section of clamp ring; And in conjunction with claw, it is outstanding and engage with male joint towards the radially inner side of master jaw from the inner peripheral surface of master jaw; The bellmouth joint possesses roughly Sealing configuration section cylindraceous and abjunction preventing part, wherein, dispose the sealed member that prevents that male joint from leaking when female joint is combined in the Sealing configuration section, the abjunction preventing part is formed roughly cylindric less than the internal diameter of Sealing configuration section of its internal diameter, and the abjunction preventing part prevents that sealed member from coming off towards the forward end of female joint; The abjunction preventing part is in the inboard that is configured in master jaw when the forward end of female joint is observed; Interior all sides in the abjunction preventing part are formed with the plane of inclination, the internal diameter of this plane of inclination diminishes towards rear end side from the forward end of female joint, the plane of inclination with respect to the axial angle of inclination of female joint greater than the outer circumferential face of the front end of the male joint axial angle of inclination with respect to male joint.
In fire-fighting of the present invention with in the hose coupling, the interior all sides in the abjunction preventing part of the inboard that when the forward end of female joint is observed, is configured in master jaw, be formed with its internal diameter from the forward end of female joint towards plane of inclination that rear end side diminishes.
In addition, in the present invention, be formed on the plane of inclination of interior all sides of abjunction preventing part with respect to the axial angle of inclination of female joint, greater than the outer circumferential face of the front end of the male joint axial angle of inclination with respect to male joint.Therefore, when female joint cutting ferrule is to the male joint, can reduces the area of contact of abjunction preventing part and male joint, thereby can reduce the contact resistance of abjunction preventing part and male joint.Therefore, in the present invention, can be easily with female joint cutting ferrule to male joint.
In the present invention, preferred female joint axially on, the internal diameter of the rear end of plane of inclination is that 4 years (1992) autonomous provinces of putting down into of Japan make specified standard value in No. 2 " the regulation fire-fighting make with the province of the technical standard of employed collar joint in the flexible pipe ", the internal diameter of front end on female joint axial, the plane of inclination makes specified standard value in No. 2 greater than 4 years (1992) autonomous provinces of putting down into of Japan.
In situation about consisting of like this, because the internal diameter of the rear end of plane of inclination is to put down into 4 years (1992) autonomous provinces to make specified standard value in No. 2, therefore, can prevent that aptly sealed member from coming off by the abjunction preventing part, thereby can prevent that male joint from leaking when female joint is combined.In addition, in situation about consisting of like this, since female joint axially on, the internal diameter of the front end of plane of inclination makes specified standard value in No. 2 greater than putting down into 4 years (1992) autonomous provinces, therefore, when female joint cutting ferrule is to the male joint, prevent easily by coming in contact in conjunction with the front-end face of the male joint after the claw and the front end of plane of inclination.
In the present invention, preferred female joint axially on, the internal diameter of the front end of plane of inclination is more than or equal to the internal diameter of master jaw.In situation about consisting of like this, when female joint cutting ferrule is to the male joint, can prevent by coming in contact in conjunction with the front-end face of the male joint after the claw and the front end of plane of inclination.
In addition, in the present invention, female joint axially on, the internal diameter of the front end of plane of inclination also can with the internal diameter of master jaw about equally.In this situation, when female joint cutting ferrule is to the male joint, prevent easily by coming in contact in conjunction with the front-end face of the male joint after the claw and the front end of plane of inclination.
In the present invention, the preferred angled face be formed its internal diameter from female joint axially on, roughly circular cone shape that the front end of abjunction preventing part diminishes gradually towards the rear end side of female joint.In situation about consisting of like this, when female joint cutting ferrule is to the male joint, prevent easily by coming in contact in conjunction with the front-end face of the male joint after the claw and the front-end face of abjunction preventing part.In addition, in situation about consisting of like this, the situation that is formed the convex surface shape that its internal diameter diminishes towards the rear end side of female joint with the plane of inclination is compared, when female joint cutting ferrule is to the male joint, reduce easily the area of contact of abjunction preventing part and male joint, consequently, reduce easily the contact resistance of abjunction preventing part and male joint.Therefore, can be more easily with female joint cutting ferrule to male joint.
In the present invention, preferred clamp ring possesses the front end that is configured in female joint and is roughly circular cutting ferrule section, and cutting ferrule section is in the outside that is configured in master jaw when the forward end of female joint is observed, female joint axially on, the internal diameter of the internal diameter of the front end of plane of inclination and master jaw about equally.In situation about consisting of like this, even the interior all sides in the abjunction preventing part are formed with in the situation of plane of inclination, also can stably keep by the front-end face of abjunction preventing part being configured in the front-end face of abjunction preventing part and the master jaw between the cutting ferrule section.
In the present invention, preferred clamp ring possesses the front end that is configured in female joint and is roughly circular cutting ferrule section, and cutting ferrule section is in the outside that is configured in master jaw when the forward end of female joint is observed, and the internal diameter of cutting ferrule section is less than or equal to the internal diameter of master jaw.In situation about consisting of like this, when female joint cutting ferrule is to the male joint, can prevent that the front-end face of male joint and the front-end face of master jaw from coming in contact.Therefore, can be more easily with female joint cutting ferrule to male joint.
In the present invention, preferred clamp ring possesses the front end that is configured in female joint and is roughly circular cutting ferrule section, and cutting ferrule section is in the outside that is configured in master jaw when the forward end of female joint is observed, and the internal diameter of cutting ferrule section and the internal diameter of master jaw are about equally.In this situation, when female joint cutting ferrule is to the male joint, prevent that easily the front-end face of male joint and the front-end face of master jaw from coming in contact.
In the present invention, preferably female joint axially on, the rear end side of interior all sides of abjunction preventing part, with with female joint axially on, mode that the rear end of plane of inclination links to each other is formed with the barrel surface that internal diameter is roughly fixed, and the internal diameter of barrel surface is less than the internal diameter of master jaw.In situation about consisting of like this, because outer circumferential face and the barrel surface of male joint connect, therefore, even act on the male joint or female joint under the bonding state with flexural load on the axially vertical direction, male joint also is difficult for respect to female joint bending.Therefore, even female joint is easy towards the cutting ferrule of male joint, also can prevent from leaking when flexural load from acting on male joint under the bonding state or the female joint.That is, can guarantee that flexural load acts on the resistance to pressure of fire-fighting with on the hose coupling time.
In the present invention, the preferred angled face female joint axially on the Width barrel surface female joint axially on width wide.In situation about consisting of like this, even the interior all sides in the abjunction preventing part are formed with in the situation of barrel surface, the angle of plane of inclination is diminished.Therefore, male joint is difficult for being blocked by the plane of inclination of abjunction preventing part, thus can be more easily with female joint cutting ferrule to male joint.
(invention effect)
As mentioned above, in fire-fighting of the present invention with in the hose coupling, can be easily with female joint cutting ferrule to male joint.
Description of drawings
Fig. 1 is the fire-fighting that relates to of embodiments of the present invention with plan view hose coupling, female joint and male joint separated state.
Fig. 2 is fire-fighting shown in Figure 1 with longitudinal section hose coupling, female joint and male joint bonding state.
Fig. 3 is the figure of the female joint under the state after from the E-E direction indication of Fig. 1 bellmouth joint and rubber tyre being removed.
Fig. 4 is the longitudinal section of female joint shown in Figure 1.
Fig. 5 is the enlarged view of the F section of Fig. 4.
Fig. 6 is be used to fire-fighting shown in Figure 1 figure with the effect of hose coupling is described.
Fig. 7 is the amplification view be used to the formation of the inner peripheral surface that the abjunction preventing part that other mode of executions of the present invention relate to is described.
(symbol description)
1 joint (fire-fighting hose coupling)
2 female joints
3 male joints
5 bellmouth joints
5c Sealing configuration section
The 5d abjunction preventing part
5e, 5g, 5h plane of inclination
The 5f barrel surface
6 clamp rings
6a cylinder section
6b annulus section (cutting ferrule section)
7 master jaws
8 in conjunction with claw
11 U-shaped Sealings (sealed member)
The internal diameter of the front end of D1, D11 plane of inclination
The internal diameter of D2 master jaw
The internal diameter of D3 barrel surface (internal diameter of the rear end of plane of inclination)
The internal diameter of D4 annulus section (internal diameter of cutting ferrule section)
The internal diameter of the rear end of D13 plane of inclination
H fire-fighting flexible pipe
The angle of inclination of θ plane of inclination
Embodiment
Below, with reference to accompanying drawing embodiments of the present invention are described.
(the fire-fighting formation of hose coupling)
The plan view of Fig. 1 state that to be the fire-fighting that relates to of embodiments of the present invention separate with male joint 3 with joint 2 hose coupling 1, female.Fig. 2 be fire-fighting shown in Figure 1 with joint 2 hose coupling 1, female and male joint 3 in conjunction with after the longitudinal section of state.Fig. 3 is from the E-E direction indication of Fig. 1 figure with the female joint 2 under bellmouth joint 5 and rubber tyre (rubber tyre) the 12 dismounting states.Fig. 4 is the longitudinal section of female joint 2 shown in Figure 1.
The fire-fighting of the manner is with hose coupling 1 (hereinafter referred to as " joint 1 "), is for the collar joint that a plurality of fire-fightings is connected to each other with flexible pipe or fire-fighting is connected with hydrant valve with flexible pipe.As shown in Figure 1, this joint 1 is made of female joint 2 and male joint 3, wherein, female joint 2 is connected to fire-fighting with on the end of flexible pipe H etc., male joint 3 is connected to fire-fighting with on the end of flexible pipe H etc., and female joint 2 is fastened on the male joint 3 in loading and unloading mode freely.
In the manner, with the female joint 2 under the separated state from the X2 direction cutting ferrule of Fig. 1 etc. to male joint 3, thus with female joint 2 and male joint 3 combinations, and, extract out towards the X1 direction in connection with the female joint 2 under the state, thus female joint 2 is separated with male joint 3.In addition, female joint 2 and male joint 3 with separately axially roughly consistent mode mutually combine.
Female joint 2 possesses: bellmouth joint 5, and it can be connected with flexible pipe H with fire-fighting; Clamp ring 6, it has the roughly cylinder 6a of section cylindraceous, and is installed in the forward end (left end side of Fig. 1) of bellmouth joint 5 in the mode that can load and unload; Master jaw 7, it is installed in interior all sides of the 6a of cylinder section of clamp ring 6; Three in conjunction with claw 8, and it is outstanding and engage with male joint 3 towards radially inner side from the inner peripheral surface of master jaw 7; And force application part 9, it is to applying the power towards radially inner side in conjunction with claw 8.
Need to prove, in the following explanation to female joint 2, X2 direction side is made as " forward end ", X1 direction side is made as " rear end side ".
Bellmouth joint 5 is made of hose transition 5a and faucet part 5b, and wherein, hose transition 5a is inserted into fire-fighting with among the flexible pipe H and be roughly cylindric, and faucet part 5b links to each other with hose transition 5a and is roughly cylindric.Such as Fig. 2, shown in Figure 4, faucet part 5b is formed on the forward end of bellmouth joint 5.In addition, the external diameter of faucet part 5b and internal diameter are respectively greater than external diameter and the internal diameter of hose transition 5a.
Faucet part 5b possesses roughly the Sealing configuration 5c of section cylindraceous and abjunction preventing part 5d, wherein, dispose U-shaped Sealing 11 among the Sealing configuration 5c of section, this U-shaped Sealing 11 be prevent female joint 2 and male joint 3 in conjunction with the time sealed member that leaks, abjunction preventing part 5d prevents that U-shaped Sealing 11 from coming off towards forward end.The Sealing configuration 5c of section is configured in the rear end side of faucet part 5b, and abjunction preventing part 5d is formed roughly cylindric less than the internal diameter of the Sealing configuration 5c of section of its internal diameter, and consists of the front end of faucet part 5b.Forward end at faucet part 5b outer circumferential face is formed with for the external screw thread that clamp ring 6 is installed.
Clamp ring 6 is made of the above-mentioned cylinder 6a of section and the 6b of annulus section, and wherein, the 6b of annulus section is formed circular and planar and link to each other with the 6a of cylinder section.The 6a of cylinder section is configured in the rear end side of clamp ring 6, and the 6b of annulus section is configured in the forward end of clamp ring 6.Be formed with the female thread that the external screw thread with faucet part 5b screws togather in the rear end side of the 6a of cylinder section inner peripheral surface.In addition, be inlaid with the rubber tyre 12 of protection usefulness at the outer circumferential face of the 6a of cylinder section.The internal diameter of the 6b of annulus section is less than the internal diameter of the 6a of cylinder section.The 6b of annulus section of the manner is the cutting ferrule section that is configured in the front end of female joint 2.
Master jaw 7 is formed flanged roughly cylindric, and be made of the 7a of annulus section and three 7b of fastening section, wherein, the 7a of annulus section is formed circular and planar, the 7b of fastening section with engage in conjunction with claw 8, thereby the restriction in conjunction with the overhang of claw 8 towards radially inner side.The 7a of annulus section is configured in the forward end of master jaw 7, and as shown in Figure 3, the 7b of fastening section is formed from the interior Zhou Duan of the 7a of annulus section outstanding towards rear end side.When three 7b of fastening section are formed and observe from the forward end of female joint 2, consistent roughly circular-arc of the centre of curvature of its centre of curvature and the 7a of annulus section.
In addition, three 7b of fastening section are the equal angles compartment of terrain along circumferencial direction with the state of the predetermined distance of being separated by and form, and the part between the 7b of fastening section becomes for towards the outstanding notch 7c that embeds in conjunction with claw 8 of radially inner side.End on the circumferencial direction of the 7b of fastening section becomes restriction face 7d, thereby this limits face 7d and engages restriction in conjunction with claw 8 in conjunction with the overhang of claw 8 towards radially inner side.
The internal diameter of the 7a of annulus section equates that with the internal diameter of the 7b of fastening section namely, the internal diameter of master jaw 7 is fixed.More particularly, the chamfered section 7e on the front end that is formed at master jaw 7 inner peripheral surfaces (with reference to Fig. 5), the internal diameter of master jaw 7 is fixed.Chamfered section 7e is about 45 ° with respect to the axial angle of inclination of female joint 2.In addition, also can not form chamfered section 7e.
To be formed roughly circular-arc block parts in conjunction with claw 8.This is made of protuberance 8a and the 8b of restriction section in conjunction with claw 8, and wherein, protuberance 8a is outstanding towards radially inner side from notch 7c, thereby the 8b of restriction section connects restriction in conjunction with the overhang of claw 8 towards radially inner side with restriction face 7d.The inner peripheral surface of protuberance 8a be formed along with from forward end towards rear end side and towards the convex surface shape of radially inner side projection.
As shown in Figure 3, master jaw 7 is embedded into interior all sides that state among the notch 7c of master jaw 7 is embedded in the 6a of cylinder section of clamp ring 6 with the protuberance 8a in conjunction with claw 8.Embedding has the clamp ring 6 of master jaw 7 to be installed in the forward end of faucet part 5b, master jaw 7 with female joint 2 axially on be housed in the inside of clamp ring 6 by the state of abjunction preventing part 5d and the 6b of annulus section clamping.That is, when observing from the forward end of female joint 2, abjunction preventing part 5d is configured in the inboard of master jaw 7, and the 6b of annulus section is configured in the outside of master jaw 7.
Force application part 9 for example is made of the two boards spring, and is fixed in conjunction with approximate center on the circumferencial direction of claw 8, the 8b of restriction section.This force application part 9 is configured between the inner peripheral surface and the outer circumferential face in conjunction with the 8b of restriction section of claw 8 of the 6a of cylinder section of clamp ring 6, and to apply the power towards radially inner side in conjunction with claw 8.
Male joint 3 possesses socket connector 17 and pressure ring 18, and wherein, socket connector 17 can be connected with flexible pipe H with fire-fighting, and pressure ring 18 is installed in the outer circumferential side of socket connector 17 in slip mode freely.Need to prove, in the following explanation to male joint 3, X1 direction side is made as " forward end ", X2 direction side is made as " rear end side ".
Socket connector 17 is made of hose transition 17a, slide part 17b and engaging teat 17c, and wherein, hose transition 17a is inserted into fire-fighting with among the flexible pipe H and be roughly cylindric; Slide part 17b is cylindric, and pressure ring 18 slides at the outer circumferential side of slide part 17b; Engage teat 17c and engage in conjunction with claw 8 and be cylindric.Slide part 17b forms in the mode that the forward end with hose transition 17a links to each other.Engaging teat 17c forms in the mode that links to each other with slide part 17b, and engaging teat 17c is formed on the forward end of socket connector 17.The external diameter of engaging teat 17c is greater than the external diameter of slide part 17b and less than the internal diameter of the abjunction preventing part 5d of bellmouth joint 5.In addition, the outer circumferential face of slide part 17b and the outer circumferential face of engaging teat 17c and the axial almost parallel of male joint 3.
Pressure ring 18 is formed in rear end side and has flanged roughly cylindric towards the lip part 18a of radial outside expansion.The internal diameter of pressure ring 18 is greater than the external diameter of slide part 17b and less than the external diameter that engages teat 17c.The external diameter of pressure ring 18 is greater than the external diameter of engaging teat 17c.In addition, the external diameter of pressure ring 18 is less than the internal diameter of the 7a of annulus section of master jaw 7.Pressure ring 18 is configured in the outer circumferential side of slide part 17b, and slides freely towards X1 direction and X2 direction.Boundary portion office at hose transition 17a and slide part 17b disposes positioning ring 19, prevents that by this positioning ring 19 pressure ring 18 from coming off from socket connector 17.
(the concrete formation of female joint)
Fig. 5 is the enlarged view of the F section of Fig. 4.
As shown in Figure 5, the inner peripheral surface of abjunction preventing part 5d is made of plane of inclination 5e and barrel surface 5f, and wherein, the internal diameter of plane of inclination 5e diminishes towards rear end side (namely towards X 1 direction) from the forward end of female joint 2, and the internal diameter of barrel surface 5f is roughly fixed.That is, the interior all sides at abjunction preventing part 5d are formed with plane of inclination 5e and barrel surface 5f.
Plane of inclination 5e is formed the roughly circular cone shape that its internal diameter diminishes towards rear end side gradually from the front end of abjunction preventing part 5d.The mode that barrel surface 5f links to each other with the rear end with plane of inclination 5e is formed on the rear end side of abjunction preventing part 5d.That is, barrel surface 5f is formed on between the rear end of rear end to the abjunction preventing part 5d of plane of inclination 5e.Plane of inclination 5e female joint 2 axially on width (width of plane of inclination 5e on X 1 direction), than barrel surface 5f female joint 2 axially on width (width of barrel surface 5f on the X1 direction) wide.For example, plane of inclination 5e female joint 2 axially on width be barrel surface 5f female joint 2 axially on about 6 times of width.
As shown in Figure 5, D2 about equally for the inside diameter D 1 of plane of inclination 5e front end and the internal diameter (the specifically internal diameter of the master jaw except chamfered section 7e 7) of master jaw 7.On the other hand, the internal diameter of plane of inclination 5e rear end (the namely internal diameter of barrel surface 5f) D3 is less than the inside diameter D 2 of master jaw 7.In addition, inside diameter D 3 also is slightly smaller than the internal diameter of U-shaped Sealing 11 forward end.In addition, in the manner, the inside diameter D 4 of the 6b of annulus section of clamp ring 6 and the inside diameter D 2 of master jaw 7 are about equally.
In addition, inside diameter D 2 is that Japanese 4 years (1992) autonomous provinces of putting down into make specified standard value in No. 2 " the regulation fire-fighting makes with the province of the technical standard of employed collar joint in the flexible pipe " with inside diameter D 3.On the other hand, inside diameter D 1 is put down into 4 years (1992) autonomous provinces greater than Japan and is made specified standard value in No. 2.
As mentioned above, consist of the outer circumferential face of engaging teat 17c of male joint 3 front ends and the axial almost parallel of male joint 3.In addition, as mentioned above, plane of inclination 5e is formed the roughly circular cone shape that its internal diameter diminishes towards rear end side gradually from the front end of abjunction preventing part 5d.That is, in the manner, plane of inclination 5e is with respect to the axial tilt angle theta of female joint 2, greater than the outer circumferential face (outer circumferential face of engaging teat 17c) of the male joint 3 front ends axial angle of inclination with respect to male joint 3.In addition, the tilt angle theta of plane of inclination 5e is smaller angle, and for example, tilt angle theta is about about 7 °.
(the fire-fighting charge and discharge operations of hose coupling)
In above such joint that consists of 1, with female joint 2 and male joint 3 in conjunction with the time, in that pressure ring 18 is kept out of the way to the state of the rear end side of slide part 17b, female joint 2 is fastened on the engaging teat 17c of socket connector 17.So, connect with the front end that engages teat 17c towards the outstanding protuberance 8a in conjunction with claw 8 of radially inner side from the inner peripheral surface of master jaw 7.In addition, by by the effect of the pressing force of the female joint 2 of cutting ferrule, resist mutually and towards the radial outside expansion, thus female joint 2 is fastened in the forward end of socket connector 17 in conjunction with claw 8 and the active force of force application part 9.
When female joint 2 is crossed position in conjunction with claw 8 by cutting ferrule to the engaging teat 17c of socket connector 17, active force by force application part 9 makes protuberance 8a recover towards radially inner side, and the rear end side of engaging teat 17c is engaged with the rear end side of protuberance 8a.Engage female joint 2 and male joint 3 combinations with the rear end side of protuberance 8a by the rear end side that will engage teat 17c.
On the other hand, when female joint 2 is separated with male joint 3, pressure ring 18 is slided towards the forward end of slide part 17b.So the front end of pressure ring 18 connects with the protuberance 8a that gives prominence to towards radially inner side from the inner peripheral surface of master jaw 7, makes thus in conjunction with claw 8 and expands towards radial outside.Because the external diameter of pressure ring 18 is greater than the external diameter of engaging teat 17c, therefore, when making by pressure ring 18 in conjunction with claw 8 when radial outside is expanded, engaging teat 17c is disengaged with engaging of protuberance 8a.Under this state, by female joint 2 is extracted out and female joint 2 is separated with male joint 3 from male joint 3.
(the main effect of the manner)
As described above, in the manner, the outer circumferential face of engaging teat 17c and the axial almost parallel of male joint 3, and plane of inclination 5e is with respect to the axioversion of female joint 2.Therefore, when female joint 2 cutting ferrules are to the male joint 3, even engaging teat 17c comes in contact with plane of inclination 5e, shown in the solid line of Fig. 6, engaging teat 17c also is line with contacting of plane of inclination 5e and contacts.That is, in the manner, can reduce the area of contact of inner peripheral surface and the male joint 3 of abjunction preventing part 5d, thereby can reduce the contact resistance of abjunction preventing part 5d and male joint 3.Therefore, in the manner, can be easily with female joint 2 cutting ferrules to male joint 3.
Especially in the manner, because the inside diameter D 1 of plane of inclination 5e front end and the inside diameter D 2 of master jaw 7 are about equally, therefore, when female joint 2 cutting ferrules are to the male joint 3, prevent easily by coming in contact in conjunction with the front-end face of the engaging teat 17c after the claw 8 and the front-end face of abjunction preventing part 5d.Therefore, in the manner, can be more easily with female joint 2 cutting ferrules to male joint 3.
In addition, in the manner, because the inside diameter D 4 of the 6b of annulus section and the inside diameter D 2 of master jaw 7 are about equally, therefore, shown in the double dot dash line of Fig. 6, when female joint 2 cutting ferrules are to the male joint 3, can prevent engaging the front-end face of teat 17c and front-end face and the chamfered section 7e of master jaw 7 comes in contact.Therefore, in the manner, can be more easily with female joint 2 cutting ferrules to male joint 3.
In the manner, when female joint 2 cutting ferrules are to the male joint 3, can prevent that the front-end face of front-end face, chamfered section 7e and the abjunction preventing part 5d of master jaw 7 from coming in contact with the front-end face that engages teat 17c.In addition, can reduce the contact resistance of abjunction preventing part 5d and male joint 3.Therefore, can suppress the front-end face etc. of engaging teat 17c when female joint 2 cutting ferrules are to the male joint 3 might impaired situation.
In the manner, the inside diameter D 1 of plane of inclination 5e front end and the inside diameter D 2 of master jaw 7 are about equally.Therefore, in the manner, can utilize the front-end face of abjunction preventing part 5d stably to keep being configured in master jaw 7 between the front-end face of the 6b of annulus section of clamp ring 6 and abjunction preventing part 5d.
In the manner, the part of all sides is barrel surface 5f in the 5d of abjunction preventing part.Therefore, even the moment of flexure of the V direction of Fig. 2 (bending moment) acts on the male joint 3 or female joint 2 under the bonding state, shown in the dotted line of Fig. 6, because outer circumferential face and the barrel surface 5f of engaging teat 17c connect, therefore, male joint 3 also is difficult for bending with respect to female joint 2.Consequently, in the manner, easily with female joint 2 cutting ferrules to male joint 3, and, can prevent from leaking when flexural load from acting on male joint 3 under the bonding state or the female joint 2, thereby can guarantee the resistance to pressure of joint 1.
In the manner, plane of inclination 5e female joint 2 axially on Width barrel surface 5f female joint 2 axially on width wide.Therefore, even be formed with in the situation of barrel surface 5f in interior all sides of abjunction preventing part 5d, also can be as mentioned above like that so that the tilt angle theta of plane of inclination 5e be smaller.Therefore, in the manner, when female joint 2 cutting ferrules are to the male joint 3, male joint 3 is difficult for being tilted face 5e to be blocked, thus can be more easily with female joint 2 cutting ferrules to male joint 3.
In addition, according to the present application people's research, in the situation of the axial almost parallel of the outer circumferential face of engaging teat 17c and male joint 3, be preferably as follows such tilt angle theta of setting, thereby when female joint 2 cutting ferrules are to the male joint 3, male joint 3 is difficult for being tilted face 5e to be blocked.
Be commonly referred to as the tilt angle theta of 40 joint 1=0.5 °~1.5 °
Be commonly referred to as the tilt angle theta of 50 joint 1=3 °~5 °
Be commonly referred to as the tilt angle theta of 65 joint 1=8 °~10 °
Be commonly referred to as the tilt angle theta of 75 joint 1=6 °~8 °
In addition, above-mentionedly be commonly referred to as 40~be commonly referred to as the size of 75 joint 1 etc., put down into 4 years (1992) autonomous provinces in Japan and make in No. 2 " regulation fire-fighting with flexible pipe in the province of technical standard of employed collar joint make " and being prescribed.
(other mode of executions)
In aforesaid way, the inner peripheral surface of abjunction preventing part 5d is made of plane of inclination 5e and barrel surface 5f, and still, shown in Fig. 7 (A), abjunction preventing part 5d also can only be made of plane of inclination 5g.In this situation, for example plane of inclination 5g is formed its internal diameter from the front end of abjunction preventing part 5d to the roughly circular cone shape that diminishes gradually between the rear end.In addition, the inside diameter D 2 of the inside diameter D of plane of inclination 5g front end 11 and master jaw 7 about equally, the inside diameter D 13 of 5g rear end, plane of inclination is less than the inside diameter D 2 of master jaw 7.In addition, the inner peripheral surface of abjunction preventing part 5d also can be made of mutually different two plane of inclination, angle of inclination.
In aforesaid way, be formed with plane of inclination 5e in interior all sides of abjunction preventing part 5d, still, also can replace plane of inclination 5e and form the plane of inclination 5h shown in Fig. 7 (B) in interior all sides of abjunction preventing part 5d.Plane of inclination 5h is formed the convex surface shape that its internal diameter diminishes towards rear end side from the front end of abjunction preventing part 5d.In this situation, the inner peripheral surface of abjunction preventing part 5d can be made of plane of inclination 5h and barrel surface 5f shown in Fig. 7 (B) like that, also can only be made of plane of inclination 5h.
In aforesaid way, the inside diameter D 2 of the inside diameter D of plane of inclination 5e front end 1 and master jaw 7 about equally, still, inside diameter D 1 also can be greater than inside diameter D 2.In the situation of inside diameter D 1 greater than inside diameter D 2, even assemble in the situation of female joint 2 at the state with the axis deviation of the axle center of bellmouth joint 5 and master jaw 7, can prevent that also the front-end face of engaging teat 17c when female joint 2 cutting ferrules are to the male joint 3 and the front-end face of abjunction preventing part 5d from coming in contact.In addition, in aforesaid way, inside diameter D 1 as long as with inside diameter D 2 about equally, thereby inside diameter D 1 also can be slightly smaller than inside diameter D 2.
In aforesaid way, the inside diameter D 2 of the inside diameter D of the 6b of annulus section 4 and master jaw 7 about equally, still, inside diameter D 4 also can be less than inside diameter D 2.In addition, inside diameter D 4 also can be greater than inside diameter D 2.
In aforesaid way, plane of inclination 5e is that the front end from abjunction preventing part 5d forms towards rear end side, but, also can from the front end of abjunction preventing part 5d, form the barrel surface that its internal diameter is roughly fixed, and form plane of inclination 5e in the mode that links to each other with the rear end of this barrel surface towards rear end side.In this situation, for example the internal diameter of plane of inclination 5e front end is more than or equal to the inside diameter D 2 of master jaw 7.
In aforesaid way, the outer circumferential face of engaging teat 17c and the axial almost parallel of male joint 3, still, the outer circumferential face of engaging teat 17c forward end also can form the taper with respect to the axioversion of male joint 3.Even in this case, plane of inclination 5e with respect to the axial tilt angle theta of female joint 2 also greater than the outer circumferential face of the engaging teat 17c forward end axial angle of inclination with respect to male joint 3.

Claims (20)

1. fire-fighting hose coupling, it is the fire-fighting hose coupling that possesses the FERRULETYPE of female joint and male joint, described fire-fighting is characterised in that with hose coupling,
Described female joint possesses:
The bellmouth joint, it can be connected with flexible pipe with fire-fighting;
Clamp ring, it has roughly cylinder section cylindraceous and is installed on the described bellmouth joint;
Master jaw, it is installed in interior all sides of the described cylinder section of described clamp ring; And
In conjunction with claw, it is outstanding and engage with described male joint towards the radially inner side of described master jaw from the inner peripheral surface of described master jaw,
Described bellmouth joint possesses roughly Sealing configuration section cylindraceous and abjunction preventing part, wherein, dispose sealed member in the described Sealing configuration section, described sealed member prevents that described male joint from leaking when described female joint is combined, described abjunction preventing part is formed roughly cylindric less than the internal diameter of described Sealing configuration section of its internal diameter, and described abjunction preventing part prevents that described sealed member from coming off towards the forward end of described female joint
Described abjunction preventing part is in the inboard that is configured in described master jaw when the forward end of described female joint is observed,
Interior all sides in described abjunction preventing part are formed with the plane of inclination, and the internal diameter of described plane of inclination diminishes towards rear end side from the forward end of described female joint,
Described plane of inclination is with respect to the axial angle of inclination of described female joint, greater than the outer circumferential face of the front end of the described male joint axial angle of inclination with respect to described male joint.
2. fire-fighting hose coupling as claimed in claim 1 is characterized in that,
Described female joint axially on, the internal diameter of the rear end of described plane of inclination, be that the 4 years autonomous provinces of putting down into of Japan make " the regulation fire-fighting make with the province of the technical standard of employed collar joint in the flexible pipe " middle specified standard value No. 2,
Described female joint axially on, the internal diameter of the front end of described plane of inclination, put down into 4 years autonomous provinces greater than Japan described and make specified standard value in No. 2.
3. fire-fighting hose coupling as claimed in claim 1 or 2 is characterized in that, described female joint axially on, the internal diameter of the front end of described plane of inclination is more than or equal to the internal diameter of described master jaw.
4. fire-fighting hose coupling as claimed in claim 1 or 2 is characterized in that, described female joint axially on, the internal diameter of the internal diameter of the front end of described plane of inclination and described master jaw about equally.
5. fire-fighting hose coupling as claimed in claim 1 or 2 is characterized in that,
Described plane of inclination be formed its internal diameter from described female joint axially on, roughly circular cone shape that the front end of described abjunction preventing part diminishes gradually towards the rear end side of described female joint.
6. fire-fighting hose coupling as claimed in claim 3 is characterized in that,
Described plane of inclination be formed its internal diameter from described female joint axially on, roughly circular cone shape that the front end of described abjunction preventing part diminishes gradually towards the rear end side of described female joint.
7. fire-fighting hose coupling as claimed in claim 4 is characterized in that,
Described plane of inclination be formed its internal diameter from described female joint axially on, roughly circular cone shape that the front end of described abjunction preventing part diminishes gradually towards the rear end side of described female joint.
8. fire-fighting hose coupling as claimed in claim 5 is characterized in that,
Described clamp ring possesses cutting ferrule section, and described cutting ferrule section is configured in the front end of described female joint and is roughly circular,
Described cutting ferrule section is in the outside that is configured in described master jaw when the forward end of described female joint is observed,
Described female joint axially on, the internal diameter of the internal diameter of the front end of described plane of inclination and described master jaw about equally.
9. fire-fighting hose coupling as claimed in claim 1 or 2 is characterized in that,
Described clamp ring possesses cutting ferrule section, and described cutting ferrule section is configured in the front end of described female joint and is roughly circular,
Described cutting ferrule section is in the outside that is configured in described master jaw when the forward end of described female joint is observed,
The internal diameter of described cutting ferrule section is less than or equal to the internal diameter of described master jaw.
10. fire-fighting hose coupling as claimed in claim 3 is characterized in that,
Described clamp ring possesses cutting ferrule section, and described cutting ferrule section is configured in the front end of described female joint and is roughly circular,
Described cutting ferrule section is in the outside that is configured in described master jaw when the forward end of described female joint is observed,
The internal diameter of described cutting ferrule section is less than or equal to the internal diameter of described master jaw.
11. fire-fighting hose coupling as claimed in claim 4 is characterized in that,
Described clamp ring possesses cutting ferrule section, and described cutting ferrule section is configured in the front end of described female joint and is roughly circular,
Described cutting ferrule section is in the outside that is configured in described master jaw when the forward end of described female joint is observed,
The internal diameter of described cutting ferrule section is less than or equal to the internal diameter of described master jaw.
12. fire-fighting hose coupling as claimed in claim 1 or 2 is characterized in that,
Described clamp ring possesses cutting ferrule section, and described cutting ferrule section is configured in the front end of described female joint and is roughly circular,
Described cutting ferrule section is in the outside that is configured in described master jaw when the forward end of described female joint is observed,
The internal diameter of described cutting ferrule section and the internal diameter of described master jaw are about equally.
13. fire-fighting hose coupling as claimed in claim 3 is characterized in that,
Described clamp ring possesses cutting ferrule section, and described cutting ferrule section is configured in the front end of described female joint and is roughly circular,
Described cutting ferrule section is in the outside that is configured in described master jaw when the forward end of described female joint is observed,
The internal diameter of described cutting ferrule section and the internal diameter of described master jaw are about equally.
14. fire-fighting hose coupling as claimed in claim 4 is characterized in that,
Described clamp ring possesses cutting ferrule section, and described cutting ferrule section is configured in the front end of described female joint and is roughly circular,
Described cutting ferrule section is in the outside that is configured in described master jaw when the forward end of described female joint is observed,
The internal diameter of described cutting ferrule section and the internal diameter of described master jaw are about equally.
15. fire-fighting hose coupling as claimed in claim 1 or 2 is characterized in that,
Described female joint axially on, the rear end side of interior all sides of described abjunction preventing part, with described female joint axially on, mode that the rear end of described plane of inclination links to each other is formed with barrel surface, wherein, the internal diameter of described barrel surface is roughly fixed,
The internal diameter of described barrel surface is less than the internal diameter of described master jaw.
16. fire-fighting hose coupling as claimed in claim 3 is characterized in that,
Described female joint axially on, the rear end side of interior all sides of described abjunction preventing part, with described female joint axially on, mode that the rear end of described plane of inclination links to each other is formed with barrel surface, wherein, the internal diameter of described barrel surface is roughly fixed,
The internal diameter of described barrel surface is less than the internal diameter of described master jaw.
17. fire-fighting hose coupling as claimed in claim 4 is characterized in that,
Described female joint axially on, the rear end side of interior all sides of described abjunction preventing part, with described female joint axially on, mode that the rear end of described plane of inclination links to each other is formed with barrel surface, wherein, the internal diameter of described barrel surface is roughly fixed,
The internal diameter of described barrel surface is less than the internal diameter of described master jaw.
18. fire-fighting hose coupling as claimed in claim 15 is characterized in that,
Described plane of inclination described female joint axially on width, than described barrel surface described female joint axially on width wide.
19. fire-fighting hose coupling as claimed in claim 16 is characterized in that,
Described plane of inclination described female joint axially on width, than described barrel surface described female joint axially on width wide.
20. fire-fighting hose coupling as claimed in claim 17 is characterized in that,
Described plane of inclination described female joint axially on width, than described barrel surface described female joint axially on width wide.
CN2011800240300A 2010-06-02 2011-02-15 Fire hose coupler Pending CN102893070A (en)

Applications Claiming Priority (3)

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JP2010-126378 2010-06-02
JP2010126378A JP5534954B2 (en) 2010-06-02 2010-06-02 Fire hose fittings
PCT/JP2011/000821 WO2011151949A1 (en) 2010-06-02 2011-02-15 Fire hose coupler

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WO (1) WO2011151949A1 (en)

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CN104524727A (en) * 2015-01-30 2015-04-22 吴良江 Built-in automatic water valve structure
CN105056452A (en) * 2015-08-22 2015-11-18 江苏爱索新材料科技有限公司 Clamping type internal expanded joint for water hose connection
CN108223942A (en) * 2017-12-21 2018-06-29 宁波昌华铜制品有限公司 Copper sleeve and its production method

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Cited By (5)

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Publication number Priority date Publication date Assignee Title
CN104524727A (en) * 2015-01-30 2015-04-22 吴良江 Built-in automatic water valve structure
CN104524727B (en) * 2015-01-30 2017-06-09 吴良江 A kind of internally-arranged type Automatic water valve structure
CN105056452A (en) * 2015-08-22 2015-11-18 江苏爱索新材料科技有限公司 Clamping type internal expanded joint for water hose connection
CN105056452B (en) * 2015-08-22 2018-01-02 江苏爱索新材料科技有限公司 For expanded joint head in the cassette of water band connection
CN108223942A (en) * 2017-12-21 2018-06-29 宁波昌华铜制品有限公司 Copper sleeve and its production method

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TW201143853A (en) 2011-12-16
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JP2011252540A (en) 2011-12-15

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Application publication date: 20130123