CN201225475Y

CN201225475Y - Fast joint

Info

Publication number: CN201225475Y
Application number: CNU2008201189472U
Authority: CN
Inventors: 鲍先启; 王洪仁
Original assignee: ZHEJIANG DANAU MACHINERY CO Ltd
Current assignee: ZHEJIANG DANAU INDUSTRIES CO., LTD.
Priority date: 2008-06-14
Filing date: 2008-06-14
Publication date: 2009-04-22
Anticipated expiration: 2018-06-14

Abstract

The utility model relates to a convenient and plug-and-play quick joint which includes a lengthening internal sleeve, a clamp spring, a steel ball, a big spring, a pressure feeder, a bottom seat, a plug jacket, a plug sealing ring, a small spring, a bottom seat sealing ring, a long plug, a movable inner core and the like. A main joint and a secondary joint are fixedly connected through an insertion matching way. A water inlet hole of the lengthening internal sleeve is sequentially provided with the plug jacket, the plug sealing ring, a return spring and the small spring from up to down. A metal layer convex edge of a locking screw nut is movably connected to a ring-shaped concave edge of the movable internal core. The long plug is fixedly connected with the movable internal core through screw threads. In order to guarantee the sealability during using, the bottom seat sealing ring and the plug sealing ring are arranged respectively on the bottom seat and in the water inlet hole of the lengthening internal core, and an O-shaped ring is arranged on the movable internal core. The utility model has convenient use, good sealability, flexible operation and broad market prospect.

Description

Rapid pipe joint

Technical field the utility model relates to a kind of joint, refers in particular to the rapid pipe joint of a kind of convenience, plug and play.

Background technique is at equipment, in the installation process of engineering, regular meeting uses device junction, and the use of joint can make many component be combined into an integral body, finish certain function, but the joint that uses is a lot of now, and form is then similar, moreover has many inconveniences in the using process, general joint is installed, use trouble, being not easy to operation, is 97218244.6 patent documents as the patent No., quick coupling device commonly used at present, mainly connect to form by major joint and time joint, this joint is a hollow tube body, and the top inner edge is provided with internal thread, can be connected with connecting tube, establish the spill snap groove in the middle of outside, the bottom becomes the connecting end of pushing shape, and this major joint comprises: become hollow to emit the pressing body of shell-like, inner edge is provided with outstanding ring edge, ring edge top forms presses sincere groove, and sincere of outstanding pressure is formed on ring edge bottom; What become hollow shape puts the appearance body, the top outer rim is provided with groove, the bottom offers several saturating empty through holes, be provided with steel ball in the circular hole, put the circular hole bottom outer rim of holding body and be provided with bead, the collar is sheathed in the groove, spring housing be located at circular hole and and bead between, the action body is that end face becomes saturating empty hollow tube shape, central authorities are provided with conduit, the inner edge top is provided with guiding seat, the guiding seat top is to the upper process guiding body, the sheathed stop tab of outer rim, the prominent ring bead of establishing of the external edge that moves, the bottom is set as awl and pulls out shape, central authorities become the contacting part and the outside air inlet portion in the slope on plane, contacting part is airtight, and air inlet portion is offered suction port in the left and right sides, and the action body is provided with groove by the bottom, packing ring, stop block, the sheathed slip body that is hollow shape of the external edge that moves, the bottom outer rim is established bead to evagination, packing ring, spring is located at the external edge of action, the spring top card is held in the ring bead bottom of action body, and the bottom of spring is fastened in the top of slip body, makes the slip body can borrow spring to make stretching exercise up and down, the top and the bottom that are the fixed body of hollow sleeve shape become permeable type, central authorities offer conduit, and the inner edge of fixed body is provided with groove, are provided with packing ring in it, and each side form contact jaw in central authorities, outer rim is provided with screw thread, and the bottom is provided with the backstop pad, the major joint internal structure complexity of its quick coupling device, and the attachment portion underaction of inferior joint, though can reach being connected of major joint and time joint, because the structural complexity of major joint causes sealability good inadequately, the ineffective activity of inferior joint causes the inconvenience of operation.

Technology contents the utility model provides a kind of high good rapid pipe joint of flexibility of sealing of plug and play of novelty, not only major joint is simple in structure, and be to flexibly connect between inferior joint and the connecting body, solved the ineffective activity in the operating process, make exercisable wider, its sealability is also very high, this is because in base (6), overlap in (1) in the lengthening, the first-class interface of loose joint inner core (15) place all is provided with seal arrangement, play very high sealability, and loose joint inner core (15) and being connected of locking nut (14) be to flexibly connect, make the connecting body flexible operation.

Concrete technological scheme: rapid pipe joint, comprise major joint and time joint, major joint be by: the lengthening in the cover (1), jump ring (2), steel ball (3), big spring (4), pressure-pad (5), base (6), plug boot (7), plug seal ring (8), Returnning spring pad (9), little spring (10), base seal ring (11), plastic cement overcoat (12), inferior joint is by long plug (13), locking nut (14), loose joint inner core (15), 0 shape circle (16) is formed, jump ring (2) is installed on and overlaps on (1) in the lengthening, steel ball (3) is installed on and overlaps on (1) in the lengthening, be positioned at the below of jump ring (2), big spring (4) is installed on cover (1) in the lengthening, between pressure-pad (5) and the base (6) in the formed space, plug seal ring (8) is installed between plug boot (7) and the Returnning spring pad (9), Returnning spring pad (9) is installed on little spring (10) upper end, little spring (10) is installed on the following position of cover (1) in the lengthening, base seal ring (11) is installed between the bottom and base (6) of cover (1) in the lengthening, plastic cement overcoat (12) is wrapped in the outside of pressure-pad (5), 0 shape circle (16) is installed on the loose joint inner core (15), major joint is threaded with spray boom by base (6), inferior joint is threaded with shower nozzle by locking nut (14), major joint and time joint are fastenedly connected by the cooperation of pegging graft, cover (1) lower end is installed in the base (6) in the lengthening, pressure-pad (5) is installed on the outside of cover (1) in base (6) upper end and the lengthening, cover (1) in the lengthening directly is installed on the base (6), big spring (4), pressure-pad (5), little spring (10), base seal ring (11), plug boot (7) is installed on overlaps in (1) in the lengthening, be positioned at the top of plug seal ring (8) and Returnning spring pad (9), long plug (13) is installed on the bottom of loose joint inner core (15), with cover (1) in the lengthening, plug boot (7), plug seal ring (8) matches, locking nut (14) is installed on the outside of long plug (13) and loose joint inner core (15), loose joint inner core (15) is installed on the top of long plug (13), and loose joint inner core (15) and long plug (13) connect.

Cover (1) becomes the stepped shaft hollow-core construction in the lengthening, be provided with osculum (61) from top to bottom, water inlet (64) structure, the diameter of water inlet (64) is greater than the diameter of osculum (61), the lower cylindrical surface of water inlet (64) is provided with outside thread, its underpart becomes the recessed edge of fillet (65), evenly establish steel ball groove (63) around the top cylindrical wall of water inlet (64), this steel ball groove (63) runs through cylindrical wall, steel ball groove (63) is more than three, cover (1) osculum (61) bottom thin-walled is provided with a ring groove (62) in the lengthening, jump ring (2) is held in this annular groove (62), cover (1) osculum (61) can be provided with relatively and grow a bit in the lengthening, the bottom external cylindrical surface of cover (1) water inlet (64) is provided with outside thread in the lengthening, be fastenedly connected with the internal thread on base (6) osculum (51), form the space between cover recessed edge of (1) fillet (65) and the annular groove (52) in the lengthening.

Pressure-pad (5) inboard is provided with cylindrical hole (31) from top to bottom, round platform hole (32), cylindrical hole (33), cylindrical hole (34) structure, the diameter of cylindrical hole (31) is greater than the diameter of cylindrical hole (33), connect by round platform hole (32), the diameter of cylindrical hole (33) is less than the diameter of cylindrical hole (34), the diameter of cylindrical hole (33) equal the to extend diameter of interior cover (1) outer cylinder surface, the diameter of cylindrical hole (34) and base (6) are gone up the equal diameters of cylindrical outer surface, and the annular concave-convex groove that replaces is mutually arranged on the outer cylindrical wall of pressure-pad (5).

Base (6) is provided with osculum (51), annular groove (52), cylindrical hole (53), cylindrical hole (54), water inlet (55) structure from top to bottom, osculum (51) is provided with internal thread, the equal diameters of the diameter of osculum (51) and annular groove (52), the diameter of cylindrical hole (53) is less than the diameter of annular groove (52), but diameter greater than cylindrical hole (54), water inlet (55) is provided with internal thread, and base (6) is gone up the diameter of cylindrical outer surface and the equal diameters of pressure cap (5) cylindrical hole (34).

Plug boot (7) is provided with cylindrical hole (41), round platform hole (42), cylindrical hole (43) structure from top to bottom, the diameter of cylindrical hole (41) is greater than cylindrical hole (43), plug boot (7) is arranged in the water inlet (64) of cover (1) in the lengthening, steel ball (3) contacts with the trapezoidal groove (73) of long plug (13), plug boot (7) outer wall contacts with the inwall of the middle water inlet (64) of cover (1) in the lengthening, and the diameter of the cylindrical hole (41) of plug boot (7) is greater than cylindrical hole (43).

Long plug (13) is provided with osculum (71), water inlet (72) structure from top to bottom, the diameter of water inlet (72) is less than the diameter of osculum (71), the inner cylindrical surface of osculum (71) is provided with internal thread, have trapezoidal groove (73) on the cylindrical wall of water inlet (72), this trapezoidal groove (73) arrives the length of the distance of water inlet (72) the recessed edge of end fillet (74) greater than cylindrical hole (41) in the plug boot (7).

Locking nut (14) is provided with metal layer (91), metal layer flange (92), plastic layer (93) structure, and metal layer (91) is fastening to be nested in the inner cylindrical wall of plastic layer (93), and metal layer (91) is provided with internal thread.

Loose joint inner core (15) is from top to bottom by being provided with osculum (81), water inlet (83) structure, osculum (81) top outer cylindrical wall is provided with annular groove (82), this annular groove (82) can in axial direction be provided with more than one, the outer surface of water inlet (83) upper part is an awl curved surface (84), top diameter is little of following diameter, following diameter is less than the diameter of metal layer (91) inner cylindrical surface in the locking nut (14), awl curved surface (84) bottom is an annular recessed edge (85), and bottom, loose joint inner core (15) water inlet (83) external cylindrical surface is provided with outside thread.

The utility model is not only simple in structure, and is flexible to operation, and good seal performance, can realize plug and play, and good reliability has vast market prospect.

Description of drawings

Fig. 1: the structural representation that is the utility model rapid pipe joint master plug;

Fig. 2, be the structural representation of the utility model rapid pipe joint time plug;

Fig. 3: the master who is the utility model rapid pipe joint pressure-pad looks sectional view;

Fig. 4: the master who is the utility model rapid pipe joint plug boot looks sectional view;

Fig. 5: the master who is the utility model rapid pipe joint base looks sectional view;

Fig. 6: the master who is cover in the utility model rapid pipe joint lengthening looks sectional view;

Fig. 7: be that the long plug master of the utility model rapid pipe joint looks sectional view;

Fig. 8: be that the utility model rapid pipe joint loose joint inner core master looks sectional view;

Fig. 9: be that the utility model rapid pipe joint locking nut master looks sectional view.

Among Fig. 1: 1, cover 2, jump ring 3, steel ball 4, big spring in the lengthening

5, pressure-pad 6, base 7, plug boot 8, plug seal ring

9, Returnning spring pad 10, little spring 11, base seal ring 12, plastic cement overcoat

Among Fig. 2: 13, long plug 14, locking nut 15, loose joint inner core 16,0 shape circle

Among Fig. 3: 5, pressure-pad 31, cylindrical hole 32, round platform hole 33, cylindrical hole

34, cylindrical hole

Among Fig. 4: 7, plug boot 41, cylindrical hole 42, round platform hole 43, cylindrical hole

Among Fig. 5: 6, base 51, osculum 52, annular groove 53, cylindrical hole

54, cylindrical hole 55, water inlet

Among Fig. 6: 1, cover 61, osculum 62, annular groove 63, steel ball groove in the lengthening

64, water inlet 65, the recessed edge of fillet

Among Fig. 7: 13, long plug 71, osculum 72, water inlet 73, trapezoidal groove

74, the recessed edge of fillet

Among Fig. 8: 15, loose joint inner core 81, osculum 82, annular groove 83, water inlet

84, conical camber 85, annular recessed edge

Among Fig. 9: 14, locking nut 91, metal layer 92, metal layer flange 93, plastic layer

Embodiment

As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, shown in Figure 9.

One, the structure of rapid pipe joint is formed

Rapid pipe joint is made up of major joint and time joint, as shown in Figure 1, major joint by: cover (1), jump ring (2), steel ball (3), big spring (4), pressure-pad (5), base (6), plug boot (7), plug seal ring (8), Returnning spring pad (9), little spring (10), base seal ring (11), pressure-pad plastic cement overcoat (12) are formed in the lengthening.

As shown in Figure 2, inferior joint is made up of: long plug (13), locking nut (14), loose joint inner core (15), 0 shape circle (16).

Two, the structure of each main parts size of rapid pipe joint

1, the structure of cover (1) in the lengthening

As shown in Figure 6, cover (1) becomes the stepped shaft hollow structure in the lengthening, from top to bottom by osculum (61), water inlet (64) is formed, the diameter of water inlet (64) is greater than the diameter of osculum (61), the lower cylindrical surface of water inlet (64) is provided with outside thread, its underpart becomes the recessed edge of fillet (65), evenly establish steel ball groove (63) around the top cylindrical wall of water inlet (64), this steel ball groove (63) runs through cylindrical wall fully, its quantity can be provided with as required, be at least three, cover (1) osculum (61) bottom thin-walled is provided with a ring groove (62) in the lengthening, and jump ring (2) is held in this annular groove (62), in the lengthening cover (1) osculum (61) can be provided with relatively long a bit.

Set gradually plug boot (7), plug seal ring (8), Returnning spring pad (9), little spring (10) from top to bottom in the water inlet (64) of cover (1) in the lengthening, locking nut (14) is gone up metal layer flange (92) and is movably connected in the annular recessed edge (85) of loose joint inner core (15), long plug (13) is connected by screw threads for fastening with loose joint inner core (15)

2, the structure of pressure-pad (5)

As shown in Figure 3, pressure-pad (5) becomes the stepped shaft hollow structure, from top to bottom by cylindrical hole (31), round platform hole (32), cylindrical hole (33), cylindrical hole (34) is formed, wherein the diameter of cylindrical hole (31) is greater than the diameter of cylindrical hole (33), they excessively connect by round platform hole (32), the diameter of cylindrical hole (33) is less than the diameter of cylindrical hole (34), the diameter of cylindrical hole (33) equal the to extend diameter of interior cover (1) outer cylinder surface, the diameter of cylindrical hole (34) and base (6) are gone up the equal diameters of cylindrical outer surface.

3, the structure of base (6)

As shown in Figure 5, base (6) becomes the stepped shaft hollow structure, from top to bottom by osculum (51), annular groove (52), cylindrical hole (53), cylindrical hole (54), water inlet (55) is formed, osculum (51) is provided with internal thread, smears thread locking adhesive on it, the equal diameters of the diameter of osculum (51) and annular groove (52), the diameter of cylindrical hole (53) is less than the diameter of annular groove (52), but greater than the diameter of cylindrical hole (54), water inlet (55) are provided with internal thread, and base (6) is gone up the diameter of cylindrical outer surface and the equal diameters of pressure cap (5) cylindrical hole (34).

4, the structure of plug boot (7)

As shown in Figure 4, plug boot (7) becomes the stepped shaft hollow structure, from top to bottom by cylindrical hole (41), round platform hole (42), and cylindrical hole (43) is formed, and the diameter of cylindrical hole (41) is greater than cylindrical hole (43), and they excessively connect by round platform hole (42).

5, the structure of long plug (13)

As shown in Figure 7, long plug (13) becomes the stepped shaft hollow structure, from top to bottom by osculum (71), water inlet (72) is formed, the diameter of water inlet (72) is less than the diameter of osculum (71), the inner cylindrical surface of osculum (71) is provided with internal thread, has trapezoidal groove (73) on the cylindrical wall of water inlet (72), and this trapezoidal groove (73) arrives the length of the distance of water inlet (72) the recessed edge of end fillet (74) greater than plug boot (7) cylindrical hole (41).

6, the structure of locking nut (14)

As shown in Figure 9, locking nut (14) becomes hollow structure, is that metal layer (91) is arranged, metal layer flange (92), and plastic layer (93) is formed, and metal layer (91) is fastening to be nested in the inner cylindrical wall of plastic layer (93), and metal layer (91) is provided with internal thread.

7, the structure of loose joint inner core (15)

As shown in Figure 8, loose joint inner core (15) becomes the stepped shaft hollow structure, from top to bottom by osculum (81), water inlet (83) is formed, osculum (81) top outer cylindrical wall is provided with annular groove (82), this annular groove (82) can in axial direction be provided with more than one, the outer surface of water inlet (83) upper part is an awl curved surface (84), diameter was big below top diameter was little, following diameter has the diameter of metal layer (91) inner cylindrical surface less than locking nut (14), awl curved surface (84) bottom is exactly an annular recessed edge (85), and bottom, loose joint inner core (15) water inlet (83) external cylindrical surface is provided with outside thread.

Loose joint inner core (15) osculum (81) top of inferior joint is provided with annular groove (82), 0 shape circle (16) is arranged in this annular groove (82), this annular groove (82) and 0 shape circle (16) can in axial direction be provided with more than one, the outer surface of water inlet (83) upper part is an awl curved surface (84), diameter was big below top diameter was little, awl curved surface (84) bottom is exactly an annular recessed edge (85), locking nut (14) upward metal layer flange (92) is movably connected in the groove of recessed edge of this annular (85) and the formation of long plug (13) osculum (71) end face, loose joint inner core (15) water inlet (83) bottom external cylindrical surface is provided with outside thread, is fastenedly connected with internal thread on long plug (13) osculum (71) inner cylindrical surface.

Three, rapid pipe joint effect and assembly relation

For realizing the utility model, as Fig. 1, shown in 2, major joint is threaded with spray boom by the internal thread on base (6) water inlet (55), inferior joint is threaded with shower nozzle by locking nut (14) metal layer (91), plastic wrapper (12) is placed on the pressure-pad (5), its corresponding tongue and groove is matched, prevent that plastic wrapper (12) is from upward slippage of pressure-pad (5), plastic wrapper (12) can increase the frictional force of doing the time spent, steel ball (3) is installed in the steel ball groove (63) on the top of the water inlet (64) of cover (1) in the lengthening, plug boot (7) is installed in the water inlet (64) from top to bottom successively, plug seal ring (8), Returnning spring pad (9), little spring (10), and all the internal surface with water inlet (64) contacts, Returnning spring pad (9) is withstood in little spring (10) upper end, because pressure-pad (5) is gone up the diameter of cylindrical hole (33) equal the to extend diameter of interior cover (1) outer cylinder surface, pressure-pad (5) is enclosed within cover (1) water inlet (64) outer cylinder surface in the lengthening, till the internal surface in pressure-pad (5) round platform hole (32) touches steel ball (3), again big spring (4) is installed on the outer cylinder surface and pressure-pad (5) cylindrical hole (54) inner periphery of water inlet (64), then base (6) osculum (51) internal thread being carried out screw threads for fastening with the interior cover of lengthening (1) water inlet (64) outside thread is connected, the diameter of interior cover (1) water inlet (64) because the diameter of base (6) cylindrical hole (53) equals to extend, and the diameter of cylindrical hole (54) is less than the diameter of cylindrical hole (53), the upper-end surface that makes little spring (10) lower end withstand base (6) cylindrical hole (54), thereby make plug boot (7), plug seal ring (8), Returnning spring pad (9), static relatively between the little spring (10), before the connection, little spring (10) is in relaxation state, big spring (4) is in impaction state, in the annular groove (62) in jump ring (2) is clamped in and extends on the bottom outer cylinder surface of cover (1) osculum (61).Loose joint inner core (15) is inserted in the base (6), locking nut (14) metal layer flange (91) is stuck in loose joint inner core (15) annular groove (82), for locking nut (14) and loose joint inner core (15) are not broken away from, carrying out screw threads for fastening by outside thread on loose joint inner core (15) water inlet (83) and internal thread on long plug (13) osculum (71) is connected, because awl curved surface (84) bottom is exactly an annular recessed edge (85), locking nut (14) upward metal layer flange (92) is movably connected in the groove of recessed edge of this annular (85) and the formation of long plug (13) osculum (71) end face, base (6) is rotated by being movably connected in certain angular range of metal layer flange (92), thereby realize the flexibility of operation, bottom, loose joint inner core (15) water inlet (83) external cylindrical surface is provided with outside thread, be fastenedly connected with the internal thread on long plug (13) osculum (71) inner cylindrical surface, for the sealing that guarantees to connect, can smear thread seal in the threaded connection place, improve sealability.Before the connection, steel ball (3) is positioned at the steel ball groove (63) on lengthening cover (1) water inlet (64), cylindrical hole (31) inner cylindrical surface with pressure cap (5), the interior round table surface in round platform hole (32), in the space that forms between the external cylindrical surface of plug boot (7), steel ball can freely roll in this space, and there is not radial effect, little spring (10) is loosened, big spring (4) is compressed, during connection, insert along the osculum (61) that overlaps (1) in the lengthening with the long plug (13) of a hand inferior joint, the osculum (61) of cover (1) play the guiding role in the lengthening, the pressure cap (5) of the major joint of another hand slip simultaneously moves upward, make pressure cap (5) and long plug (13) move to axial, the recessed edge of fillet (74) of this duration plug (13) withstands on the internal surface in plug boot (7) round platform hole (42), make plug boot (7) successively, plug seal ring (8), Returnning spring pad (9), little spring (10) moves downward along the inner periphery of cover (1) water inlet (64) in the lengthening, at this moment, little spring (10) is compressed gradually, big spring (4) is loosened gradually, steel ball (3) rolls in steel ball groove (63) and the interior round table surface that is subjected to round platform hole (32) awards the inside radial force of steel ball (3), steel ball (3) is with regard to the external cylindrical surface of lateral extrusion plug boot (7), fall in the trapezoidal groove of long plug (13) (73) when the external cylindrical surface of steel ball (3) disengaging plug boot (7) and owing to being subjected to inside radial force, simultaneously because the effect of jump ring (2), making pressure cap (5) and long plug (13) move to axial stops, after the connection, steel ball (3) is in steel ball groove (63), the inner cylindrical surface of cylindrical hole (33), in the gap that forms between the trapezoidal groove (73), little spring (10) is compressed, big spring (4) is loosened, and assembling connects to be finished.

Rapid pipe joint, comprise major joint and time joint, major joint be by: the lengthening in the cover (1), jump ring (2), steel ball (3), big spring (4), pressure-pad (5), base (6), plug boot (7), plug seal ring (8), Returnning spring pad (9), little spring (10), base seal ring (11), plastic cement overcoat (12), inferior joint is by long plug (13), locking nut (14), loose joint inner core (15), 0 shape circle (16) is formed, jump ring (2) is installed on and overlaps on (1) in the lengthening, steel ball (3) is installed on and overlaps on (1) in the lengthening, be positioned at the below of jump ring (2), big spring (4) is installed on cover (1) in the lengthening, between pressure-pad (5) and the base (6) in the formed space, plug seal ring (8) is installed between plug boot (7) and the Returnning spring pad (9), Returnning spring pad (9) is installed on little spring (10) upper end, little spring (10) is installed on the following position of cover (1) in the lengthening, base seal ring (11) is installed between the bottom and base (6) of cover (1) in the lengthening, plastic cement overcoat (12) is wrapped in the outside of pressure-pad (5), 0 shape circle (16) is installed on the loose joint inner core (15), major joint is threaded with spray boom by base (6), inferior joint is threaded with shower nozzle by locking nut (14), major joint and time joint are fastenedly connected by the cooperation of pegging graft, cover (1) lower end is installed in the base (6) in the lengthening, pressure-pad (5) is installed on the outside of cover (1) in base (6) upper end and the lengthening, cover (1) in the lengthening directly is installed on the base (6), big spring (4), pressure-pad (5), little spring (10), base seal ring (11), plug boot (7) is installed on overlaps in (1) in the lengthening, be positioned at the top of plug seal ring (8) and Returnning spring pad (9), long plug (13) is installed on the bottom of loose joint inner core (15), with cover (1) in the lengthening, plug boot (7), plug seal ring (8) matches, locking nut (14) is installed on the outside of long plug (13) and loose joint inner core (15), loose joint inner core (15) is installed on the top of long plug (13), and loose joint inner core (15) and long plug (13) connect.

Four, the working principle of rapid pipe joint

During use, can earlier spray boom be installed in by being threaded on the base (6) of rapid pipe joint, then the head of the long plug (13) of inferior joint is inserted in the osculum (61) of cover (1) in the lengthening of rapid pipe joint, the locking nut (14) that masterpiece is used for time joint, direction is along axial direction, at this moment, power on the locking nut (14) is delivered on the long plug (13), the recessed edge of fillet (74) of long plug (13) acts on the round table surface in the round platform hole (42) of the plug boot (7) in the cover (1) in the lengthening, power just passes on the plug boot (7) by long plug (13), plug boot (7) is moved downward along the inner periphery of the water inlet (64) of cover (1) in the lengthening, when plug boot (7) is moved along stressed being directed downwards, when firm disengaging steel ball (3), because steel ball (3) becomes point to contact with the round table surface in the round platform hole (32) of pressure-pad (5), round table surface acts on power on the steel ball (3) and can be decomposed into along the axial force of axial direction with perpendicular to the radial force of axial direction, radial force is pressed in the trapezoidal groove (73) of long plug (13) steel ball (3), meanwhile, plug seal ring (8), Returnning spring pad (9) also moves downward together along the inner periphery of the water inlet (64) of cover (1) in the lengthening, the power that acts on the plug boot (7) is passed on the plug seal ring (8), pass to again on the Returnning spring pad (9), the power that acts on the Returnning spring (9) makes little spring (10) compression, principle according to active force and reaction force, pressure-pad (5) moves to the direction opposite with plug boot (7) along the outer cylinder surface of the water inlet (64) of the interior cover of lengthening (1), till being blocked by jump ring (2), pressure-pad (5) just stops relative movement, the big spring (4) of this moment is loosened, the grafting of major joint and time joint is finished, at last, shower nozzle is installed in by being threaded on the locking nut (13) of time joint and promptly finishes whole connection procedure, for guaranteeing sealability in use, go up mounting base seal ring (11) at the annular groove (52) of base (6) respectively, plug seal ring (8) is installed between plug boot (7) and the Returnning spring pad (9), annular groove (82) in loose joint inner core (15) is gone up installation 0 shape circle (16), simultaneously smear thread locking adhesive at the screw thread place, the direction of flowing through of fluid is followed successively by water inlet (55), cylindrical hole (54), water inlet (64), osculum (61), water inlet (72), water inlet (83), osculum (81) is at last by the spray boom ejecting fluid.

Use this rapid pipe joint both convenient, good airproof performance is operated flexibly again, can bear certain hydrodynamic pressure again.

Claims

1, a kind of rapid pipe joint, comprise major joint and time joint, major joint be by: the lengthening in the cover (1), jump ring (2), steel ball (3), big spring (4), pressure-pad (5), base (6), plug boot (7), plug seal ring (8), Returnning spring pad (9), little spring (10), base seal ring (11), plastic cement overcoat (12), inferior joint is by long plug (13), locking nut (14), loose joint inner core (15), O shape circle (16) is formed, jump ring (2) is installed on and overlaps on (1) in the lengthening, steel ball (3) is installed on and overlaps on (1) in the lengthening, be positioned at the below of jump ring (2), big spring (4) is installed on cover (1) in the lengthening, between pressure-pad (5) and the base (6) in the formed space, plug seal ring (8) is installed between plug boot (7) and the Returnning spring pad (9), Returnning spring pad (9) is installed on little spring (10) upper end, little spring (10) is installed on the following position of cover (1) in the lengthening, base seal ring (11) is installed between the bottom and base (6) of cover (1) in the lengthening, plastic cement overcoat (12) is wrapped in the outside of pressure-pad (5), O shape circle (16) is installed on the loose joint inner core (15), it is characterized in that: major joint is threaded with spray boom by base (6), inferior joint is threaded with shower nozzle by locking nut (14), major joint and time joint are fastenedly connected by the cooperation of pegging graft, cover (1) lower end is installed in the base (6) in the lengthening, pressure-pad (5) is installed on the outside of cover (1) in base (6) upper end and the lengthening, cover (1) in the lengthening directly is installed on the base (6), big spring (4), pressure-pad (5), little spring (10), base seal ring (11), plug boot (7) is installed on overlaps in (1) in the lengthening, be positioned at the top of plug seal ring (8) and Returnning spring pad (9), long plug (13) is installed on the bottom of loose joint inner core (15), with cover (1) in the lengthening, plug boot (7), plug seal ring (8) matches, locking nut (14) is installed on the outside of long plug (13) and loose joint inner core (15), loose joint inner core (15) is installed on the top of long plug (13), and loose joint inner core (15) and long plug (13) connect.

2, rapid pipe joint according to claim 1, it is characterized in that: cover (1) becomes the stepped shaft hollow-core construction in the lengthening, be provided with osculum (61) from top to bottom, water inlet (64) structure, the diameter of water inlet (64) is greater than the diameter of osculum (61), the lower cylindrical surface of water inlet (64) is provided with outside thread, its underpart becomes the recessed edge of fillet (65), evenly establish steel ball groove (63) around the top cylindrical wall of water inlet (64), this steel ball groove (63) runs through cylindrical wall, steel ball groove (63) is more than three, cover (1) osculum (61) bottom thin-walled is provided with a ring groove (62) in the lengthening, jump ring (2) is held in this annular groove (62), cover (1) osculum (61) can be provided with relatively and grow a bit in the lengthening, the bottom external cylindrical surface of cover (1) water inlet (64) is provided with outside thread in the lengthening, is fastenedly connected with internal thread on base (6) osculum (51), forms the space between cover recessed edge of (1) fillet (65) and the annular groove (52) in the lengthening.

3, rapid pipe joint according to claim 1, it is characterized in that: pressure-pad (5) inboard is provided with cylindrical hole (31) from top to bottom, round platform hole (32), cylindrical hole (33), cylindrical hole (34) structure, the diameter of cylindrical hole (31) is greater than the diameter of cylindrical hole (33), connect by round platform hole (32), the diameter of cylindrical hole (33) is less than the diameter of cylindrical hole (34), the diameter of cylindrical hole (33) equal the to extend diameter of interior cover (1) outer cylinder surface, the diameter of cylindrical hole (34) and base (6) are gone up the equal diameters of cylindrical outer surface, and the annular concave-convex groove that replaces is mutually arranged on the outer cylindrical wall of pressure-pad (5).

4, rapid pipe joint according to claim 1, it is characterized in that: base (6) is provided with osculum (51) from top to bottom, annular groove (52), cylindrical hole (53), cylindrical hole (54), water inlet (55) structure, osculum (51) is provided with internal thread, the equal diameters of the diameter of osculum (51) and annular groove (52), the diameter of cylindrical hole (53) is less than the diameter of annular groove (52), but diameter greater than cylindrical hole (54), water inlet (55) is provided with internal thread, and base (6) is gone up the diameter of cylindrical outer surface and the equal diameters of pressure cap (5) cylindrical hole (34).

5, rapid pipe joint according to claim 1, it is characterized in that: plug boot (7) is provided with cylindrical hole (41), round platform hole (42), cylindrical hole (43) structure from top to bottom, the diameter of cylindrical hole (41) is greater than cylindrical hole (43), plug boot (7) is arranged in the water inlet (64) of cover (1) in the lengthening, steel ball (3) contacts with the trapezoidal groove (73) of long plug (13), plug boot (7) outer wall contacts with the inwall of the middle water inlet (64) of cover (1) in the lengthening, and the diameter of the cylindrical hole (41) of plug boot (7) is greater than cylindrical hole (43).

6, rapid pipe joint according to claim 1, it is characterized in that: long plug (13) is provided with osculum (71), water inlet (72) structure from top to bottom, the diameter of water inlet (72) is less than the diameter of osculum (71), the inner cylindrical surface of osculum (71) is provided with internal thread, have trapezoidal groove (73) on the cylindrical wall of water inlet (72), this trapezoidal groove (73) arrives the length of the distance of water inlet (72) the recessed edge of end fillet (74) greater than cylindrical hole (41) in the plug boot (7).

7, rapid pipe joint according to claim 1, it is characterized in that: locking nut (14) is provided with metal layer (91), metal layer flange (92), plastic layer (93) structure, metal layer (91) is fastening to be nested in the inner cylindrical wall of plastic layer (93), and metal layer (91) is provided with internal thread.

8, rapid pipe joint according to claim 1, it is characterized in that: loose joint inner core (15) is from top to bottom by being provided with osculum (81), water inlet (83) structure, osculum (81) top outer cylindrical wall is provided with annular groove (82), this annular groove (82) can in axial direction be provided with more than one, the outer surface of water inlet (83) upper part is an awl curved surface (84), top diameter is little of following diameter, following diameter is less than the diameter of metal layer (91) inner cylindrical surface in the locking nut (14), awl curved surface (84) bottom is an annular recessed edge (85), and bottom, loose joint inner core (15) water inlet (83) external cylindrical surface is provided with outside thread.