CN111878652A

CN111878652A - Corrugated pipe quick connector

Info

Publication number: CN111878652A
Application number: CN202010646014.6A
Authority: CN
Inventors: 邱强生; 林根发
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-07
Filing date: 2020-07-07
Publication date: 2020-11-03

Abstract

The invention discloses a quick-assembly joint for corrugated pipes, which comprises a joint main body, wherein a sealing element, a clamping structure and a spinning sleeve are respectively arranged at the joint end of the joint main body, the clamping structure is sleeved inside the spinning sleeve, the spinning sleeve is sleeved outside the joint end of the joint main body, the clamping structure is acted on by the spinning sleeve, and the clamping structure is clamped into a groove of the corrugated pipe to fix the corrugated pipe. This bellows quick-operation joint acts on buckle structure through the action that the spinning sleeve is rotatory, bulldozes, realizes the locking of buckle structure in the bellows recess or unclamps, and easy dismounting is swift, can accomplish the construction operation fast.

Description

Corrugated pipe quick connector

Technical Field

The invention relates to a quick connector of a pipeline, in particular to a quick connector of a corrugated pipe.

Background

Chinese patent document CN208900910U discloses a quick-assembly structure for pipeline connection, which comprises a main body, wherein an external thread and an installation groove are arranged at the end of the main body, a sealing sleeve is placed on the installation groove, and one end of the sealing sleeve abuts against a compression washer. The other end of the pressing washer is abutted to the clamping ring, the clamping ring is provided with a notch, the outer side surface is a conical surface, the large-diameter end is abutted to the pressing washer, and the small-diameter end is provided with the clamping ring. The locking nut is connected with the main body through internal threads, an inner conical surface is arranged at the other end of the locking nut, the inner conical surface of the screwed nut is abutted to an outer conical surface on the clamping ring, the clamping ring contracts, and the clamping ring is buckled into the groove of the corrugated pipe.

The design has stable performance and simple structure, but is complex to install and cannot realize quick assembly and disassembly.

Therefore, how to solve the above problems is a problem to be solved urgently.

Disclosure of Invention

Aiming at the technical problems, the invention provides the quick-assembly connector for the corrugated pipe, which is characterized in that the rotation and pushing actions of the spinning sleeve act on the buckle structure, so that the buckle structure is locked or loosened in the groove of the corrugated pipe, the disassembly and the assembly are convenient and quick, and the construction operation can be quickly completed.

In order to achieve the purpose, the technical scheme of the invention is as follows:

the quick-assembly connector comprises a connector main body, wherein a sealing element, a clamping structure and a spinning sleeve are respectively arranged at an interface end of the connector main body, the clamping structure is sleeved inside the spinning sleeve, the spinning sleeve is sleeved outside the interface end of the connector main body, the clamping structure is acted on by the spinning sleeve, and the clamping structure is buckled into a groove of the corrugated pipe to fix the corrugated pipe. Action through spinning sleeve rotation, bulldoze acts on buckle structure, realizes the locking of buckle structure in the bellows recess or unclamps, and easy dismounting is swift, can accomplish the construction operation fast.

The buckle structure further comprises a buckle elastic seat and a plurality of buckle pieces, and the buckle pieces are elastically arranged on the cylindrical surface of the buckle elastic seat;

the clamping piece is provided with a clamping tip, the connector end of the connector main body is provided with a clamping hole, the cylindrical surface of the spinning sleeve is provided with a plurality of pressing concaves, the pressing concaves press the clamping piece, and the clamping tip penetrates through the clamping elastic seat and the clamping hole to be buckled into the groove of the corrugated pipe.

The pressing inner recess of the spinning sleeve compresses the buckling piece in a fixed state, the buckling top of the buckling piece is buckled into the groove of the corrugated pipe, and the buckling top of the buckling piece is automatically ejected out of the groove of the corrugated pipe under the action of elastic force in a loosened state.

The buckle structure further comprises a disc spring and a disc spring seat, the disc spring is provided with an outer cylindrical ring and an inner conical ring which are connected into a whole, and the interface end of the joint main body is provided with a disc spring fixing step; the outer cylindrical ring is tightly attached to the inner wall of the connector end of the connector main body and the disc spring fixing step, the inner conical ring is buckled into the groove of the corrugated pipe, and the disc spring seat is located between the inner conical ring and the end face of the spinning sleeve. The inner conical ring of the disc spring is buckled into the groove of the corrugated pipe to lock the pipeline, and the disc spring seat is pushed to push the inner conical ring of the disc spring out of the groove of the corrugated pipe to loosen the pipeline.

Furthermore, the inner conical ring of the disc spring is provided with a barb which is adapted to the corrugated groove. The arrangement of the barb enables the stress performance of the disc spring to be better.

The buckle structure further comprises a radial telescopic ring and a quick-release bolt, the inner wall of the radial telescopic ring is provided with a plurality of radial bulges surrounding the groove of the corrugated pipe, the radial telescopic ring contracts radially to lock the radial bulges in the groove of the corrugated pipe, and the cylindrical surface of the radial telescopic ring is provided with a plurality of axial inclined plane grooves; the quick detach bolt have the bolt ring surface, the bolt ring surface axial extends a plurality of extrusion strips, radial expansion ring radial contraction in the extrusion strip inserts radial expansion ring's inclined plane inslot, the extrusion strip breaks away from the inclined plane groove, radial expansion ring's radial bulge is automatic bounced out and is broken away from the bellows recess.

Further the quick-release bolt is provided with two elastic buckling strips which are axially symmetrical, the elastic buckling strips are provided with elastic buckles, the outer end face of the spinning sleeve is provided with an inner ring face, and the inner ring face is provided with a bolt through hole through which the extrusion strip passes and an elastic buckling hole through which the elastic buckling strips pass and buckle the elastic buckles.

And an extrusion structure is arranged at the interface end of the joint main body, the extrusion structure is positioned between the sealing element and the buckle structure, the spinning sleeve is rotated, and the extrusion structure axially moves to compress or loosen the sealing element. The extrusion structure extrudes the sealing element to form compression sealing, and the sealing performance is better.

The extrusion structure comprises a spinning ring and a spinning positioning piece, a plurality of inclined spinning grooves are formed in the connector end of the connector main body, a plurality of lugs are arranged on the spinning positioning piece and penetrate through the spinning ring to be positioned in the spinning grooves, a plurality of axial protrusions are arranged on the cylindrical surface of the spinning sleeve to fix the lugs of the spinning positioning piece, and the spinning sleeve drives the lugs to move towards the middle in the spinning grooves so as to drive the spinning ring to axially compress the sealing piece.

The spinning groove is further provided with an initial position, a bending position and a fixing position, the convex lug is in a loosening state of the spinning ring to the sealing element at the initial position, and is in a pressing state of the spinning ring to the sealing element at the fixing position. The bending position has the effect that the convex lug can rotate to the initial position from the fixed position only by overcoming the resistance generated by further pressing the sealing element by the spinning ring when passing through the bending position, so that the joint can be stably in a sealing state.

Furthermore, one end of the sealing element is provided with an extrusion outer inclined surface, one end of the spinning ring is provided with an extrusion inner inclined surface, and the extrusion inner inclined surface is matched with the extrusion outer inclined surface. The extrusion inner inclined plane of the spinning ring is tightly matched with the extrusion outer inclined plane of the sealing element to form inclined plane extrusion, so that the extrusion stress area is increased, the stress is more uniform, and the sealing is more stable.

The connector end of the connector main body is provided with an inwards concave buckle mounting seat, the outer end of the buckle mounting seat is provided with a pressure-bearing flange, and the buckle hole is formed in an inwards concave ring surface of the buckle mounting seat. The joint main body is provided with a buckle mounting seat for fixing the buckle structure and limits the axial movement of the buckle structure through two sides of the concave ring surface. The buckle structure is sleeved on the buckle mounting seat on the joint main body, and when the buckle piece penetrates through the buckle hole and is buckled into the groove of the corrugated pipe, the upper edge of the buckle piece is abutted to the pressure-bearing flanging on the joint main body.

Further, the spinning ring is provided with an axial deformation notch, the spinning positioning piece is provided with an axial shrinkage opening, two sides of the shrinkage opening extend outwards to form raised straight edges, and the inner wall of the spinning ring is provided with straight edge grooves matched with the raised straight edges. The spinning positioning piece is mounted and dismounted by opening the spinning annular variable notch and the spinning positioning piece shrinkage opening, the convex straight edge of the spinning positioning piece is fixed by the straight edge groove of the spinning ring, and the stability and no deformation of the integral structure of the spinning ring and the spinning positioning piece after assembly are ensured.

And further, a sleeve convex ring is arranged on the cylindrical surface of the spinning sleeve, a main body convex ring buckled with the sleeve convex ring is arranged at the joint end of the joint main body, and a plurality of axial convex ring deformation holes extending towards two sides are formed in the main body convex ring. The structure that the sleeve convex ring and the main body convex ring formed by the joint main body are buckled through the spinning sleeve body is simple to manufacture, convenient to install and disassemble and operate, and the convex ring deformation and shrinkage of the joint main body are favorable for the spinning sleeve and the buckling of the joint main body.

Further, a triangular mark is arranged on an axial bulge of the spinning sleeve, and a locking mark and a loosening mark are arranged at the interface end of the joint main body.

When the spinning sleeve rotates to align the triangular mark with the locking mark on the joint main body, the pressing indent on the spinning sleeve presses the buckle part, the buckle top is buckled into the groove of the corrugated pipe, the lug of the spinning positioning part moves towards the middle part of the joint main body in the axial bulge of the spinning sleeve, and the spinning ring extrudes the sealing part;

when the spinning sleeve rotates to align the triangular mark with a loosening mark on the joint main body, the pressing concave staggered buckling piece on the spinning sleeve is pushed radially by the elastic sheet on the buckling elastic seat, the buckling tip pops out of the groove of the corrugated pipe, the lug of the spinning positioning piece moves away from the center of the joint main body in the axial bulge of the spinning sleeve, and the spinning ring is away from the sealing piece.

The extrusion structure further comprises a concave tooth extrusion piece and a rotary extrusion piece, the concave tooth extrusion piece is provided with a plurality of radial positioning lugs and a plurality of concave teeth on one end surface, the rotary extrusion piece is provided with a plurality of radial rotary lugs and a plurality of convex teeth, and the concave teeth are matched with the convex teeth;

the cylindrical surface of the spinning sleeve is provided with a plurality of rotary lug holes, and the interface end of the joint main body is provided with a plurality of rotary flat grooves and axial positioning grooves which surround the outer circumference; the positioning lug penetrates through the axial positioning groove, and the rotating lug penetrates through the rotating flat groove and the rotating lug hole; and rotating the spinning sleeve, rotating the rotary extrusion piece in the rotating flat groove, matching the convex teeth with the corresponding concave teeth, axially moving the concave tooth extrusion piece in the axial positioning groove, and pressing the sealing piece to form compression sealing. The rotary displacement of the spinning sleeve is converted into the axial displacement of the concave extrusion piece through the staggered matching of the concave teeth on the concave extrusion piece and the convex teeth on the rotary extrusion piece.

The sealing element is a customized sealing element matched with the concave shape in the corrugated pipe;

the outer cylindrical surface of the spinning sleeve is sequentially provided with a spring groove, a radial pressing inner recess and an axial limiting convex ring which surround the outer cylindrical surface from the end surface; the outer cylindrical surface of the connector main body interface end is provided with a spring flange, an elastic mounting notch and a main body positioning convex ring, and the elastic mounting notch is axially arranged to extend from the end surface of the connector main body to disconnect the main body positioning convex ring;

and a compression spring surrounding the outer cylindrical surface is arranged in the spring groove, the compression spring props against the flange of the spring, the spinning sleeve is rotated to compress the concave pressing buckle part, and the buckle tip of the buckle part penetrates through the buckle hole to be buckled into the groove of the corrugated pipe.

The sealing element is an O-shaped sealing ring arranged in the groove of the corrugated pipe.

Further, a plurality of sleeve mounting holes are formed in the cylindrical surface of the interface end of the joint main body, a plurality of annular pressure inner buckles are arranged on the inner cylindrical surface of the spinning sleeve, and the annular pressure inner buckles are buckled into the sleeve mounting holes; the connector main body interface end is provided with a plurality of axial elastic mounting notches.

Compared with the prior art, the invention has the following technical advantages:

1. the rotary spinning sleeve is rotated, the corrugated pipe can be locked by the buckle structure, the sealing element is radially shrunk by extrusion of the rotary spinning ring, the corrugated pipe and the joint main body are pressed and sealed through the sealing element, and the sealing performance is good. When the corrugated pipe connector is disassembled, the rotary pressing sleeve only needs to be rotated reversely, the buckle structure can be popped out from the groove of the corrugated pipe, and the sealing element is separated from the compression of the rotary pressing ring, so that the corrugated pipe can be taken out from the connector. The assembly and disassembly are convenient and quick, and the operation and construction can be quickly finished;

2. the spinning groove is adopted, and the joint can be mounted and dismounted only by rotating the spinning sleeve for a certain angle;

3. the locking is realized by adopting a buckle structure, and the buckle structure bears the pressure on the joint main body and can bear larger pressure;

4. the prefabricated sealing element is adopted, so that the compression area is large and the sealing performance is good;

5. compact structure, stable performance and low production cost.

Drawings

FIG. 1 is a cross-sectional exploded view of a first embodiment of the present invention;

FIG. 2 is a perspective view of a first embodiment of the present invention;

FIG. 3 is a complete assembled cross-sectional view of the first embodiment of the present invention;

FIG. 4 is an exploded view of the first embodiment of the present invention;

FIG. 5 is a perspective view of a first embodiment fitting body of the present invention;

FIG. 6 is an exploded view of the first embodiment of the present invention;

FIG. 7 is a perspective view of a first embodiment seal of the present invention;

FIG. 8 is an exploded view of the extruded structure of the first embodiment of the present invention;

FIG. 9 is a cross-sectional view of an extruded structure according to a first embodiment of the present invention;

FIG. 10 is a perspective view of the extruded structure of the first embodiment of the present invention;

FIG. 11 is an exploded view of the first embodiment of the snap structure of the present invention;

FIG. 12 is a perspective view of a first embodiment swivel sleeve of the present invention;

FIG. 13 is a schematic view of the alignment of locking marks according to the first embodiment of the present invention;

FIG. 14 is a cross-sectional view of the first embodiment of the present invention shown in a locked and unlocked position;

FIG. 15 is a left side sectional view of the joint lock E-E of FIG. 14;

FIG. 16 is a right side sectional view of the joint of FIG. 14 shown in an exploded F-F configuration;

FIG. 17 is an alignment view of the first embodiment of the joint locking and ejection flag of the present invention;

FIG. 18 is a cross-sectional exploded view of a second embodiment of the present invention;

FIG. 19 is a perspective view of a connector body according to a second embodiment of the present invention;

FIG. 20 is a single-sided cross-sectional view of a second embodiment of the present invention;

FIG. 21 is an exploded view of a second embodiment extruded structure according to the present invention;

FIG. 22 is a perspective view of a second embodiment of a spinning sleeve of the present invention;

FIG. 23 is a cross-sectional exploded view of a third embodiment of the present invention;

FIG. 24 is a perspective view of a third embodiment of the present invention;

FIG. 25 is a single-sided cross-sectional view of a third embodiment of the present invention;

FIG. 26 is a perspective view of a third embodiment fitting body according to the present invention;

FIG. 27 is an exploded view of a third embodiment of the present invention;

FIG. 28 is a perspective view I of a third embodiment spinning sleeve of the present invention;

FIG. 29 is a second perspective view of a third embodiment spinning sleeve of the present invention;

FIG. 30 is a cross-sectional exploded view of a fourth embodiment of the present invention;

FIG. 31 is a perspective view of a fourth embodiment of the present invention;

FIG. 32 is a single-sided cross-sectional view of a fourth embodiment of the present invention;

FIG. 33 is a perspective view of a connector body according to a fourth embodiment of the present invention;

FIG. 34 is a perspective view of a fourth embodiment spinning sleeve of the present invention;

FIG. 35 is a perspective view of a disc spring according to a fourth embodiment of the present invention;

FIG. 36 is a single-sided cross-sectional view of a fifth embodiment of the present invention;

FIG. 37 is a perspective view of a disc spring according to a fifth embodiment of the present invention;

FIG. 38 is a cross-sectional exploded view of a sixth embodiment of the present invention;

FIG. 39 is a perspective view of a sixth embodiment of the present invention;

FIG. 40 is a single-sided cross-sectional view of a sixth embodiment of the present invention;

FIG. 41 is a perspective view of a connector body according to a sixth embodiment of the present invention;

FIG. 42 is a perspective view of a sixth embodiment of a radially extending ring of the present invention;

FIG. 43 is a perspective view of a sixth embodiment of a spinning sleeve of the present invention;

FIG. 44 is an exploded view of a quick release pin and a spinning sleeve of a sixth embodiment of the present invention;

FIG. 45 is a cross-sectional view of a sixth embodiment of the present invention;

FIG. 46 is an X-X cross sectional view of the quick release latch of FIG. 45 shown locked and pulled.

In the figure: the joint comprises a joint body A, a loosening mark A1, a locking mark A2, a body convex ring A3, a spinning groove A4, an initial position A41, a bending position A42, a fixing position A43, a buckle mounting seat A5, a pressure-bearing flange A6, a buckle hole A7, a convex ring deformation hole A8, a body retraction position A9, a rotating flat groove A10, an axial positioning groove A11, a body positioning convex ring A12, a spring blocking edge A13, a locking marking arrow A14, a sleeve mounting hole A15, an elastic mounting notch A16, a limiting end surface A17, a vertical step A18, a disc spring fixing step A19, a mark ring 1, a sealing element 2, an extrusion outer inclined surface 21, a spinning ring 3, a deformation notch 31, a lug hole 32, an extrusion inner inclined surface 33, a straight edge groove 34, a spinning positioning element 4, a contraction opening 41, a lug 42, a protrusion 43, a straight edge buckle 5, a buckle elastic seat 6, an elastic tip 61, a sleeve seat 62, a sleeve seat notch 7, an axial protrusion 71, a rotary extrusion notch, The locking device comprises a triangular mark 72, a pressing inner recess 73, a sleeve convex ring 74, a rotary lug hole 75, a spring groove 76, a locking icon 77, an axial limiting convex ring 78, a ring pressing inner buckle 79, a bolt through hole 710, an elastic buckle hole 711, a corrugated pipe 8, a concave tooth extrusion piece 9, a positioning lug 91, an extrusion flanging 92, a concave tooth 93, a rotary extrusion piece 010, a rotary lug 0101, a convex tooth 0102, a compression ring 011, a compression spring 012, a disc spring 013, a barb 0131, a disc spring seat 014, a fixed step 0141, an O-shaped ring 015, a radial expansion ring 016, an inclined plane groove 0161, a radial protrusion 0162, a quick-release bolt 017, an extrusion strip 0171, an inner ring surface 712, an elastic buckle strip 0172, a bolt ring surface 0173, an elastic buckle 0174, an extrusion structure B and a buckling structure C.

Detailed Description

The invention will be described in further detail below with reference to embodiments shown in the drawings.

As shown in fig. 1 to 17, a first embodiment of the quick-assembly connector for corrugated pipes according to the present invention, as shown in fig. 1, includes a connector body a having two symmetrical joint ends, and a sealing element 2, an extruding structure B, a buckling structure C and a spinning sleeve 7 respectively connected to a corrugated pipe 8, wherein a main body retraction position a9 is provided in the middle of the connector body a, an inner wall of the main body retraction position a9 has a limiting end surface a17 abutting against an end of the corrugated pipe 8, as shown in fig. 3, an inner wall of the sealing element 2 seals against an outer wall of the corrugated pipe 8, an outer wall of the sealing element 2 seals against an inner wall of the joint end of the connector body a, and the extruding structure B extrudes the sealing element 2 toward the main body retraction position a9 to form a seal; as shown in fig. 1, the fastening structure C is sleeved in the spinning sleeve 7, and the spinning sleeve 7 is rotated by a certain angle to drive the fastening structure C to be fastened in the groove on the corrugated pipe 8 to realize the fixed locking of the corrugated pipe, and simultaneously drive the extrusion structure B to extrude the sealing element 2.

As shown in fig. 1/6, the central body retraction position a9 of the connector body a is provided with a marker ring 1, which can mark the type of the bellows connector or the applicable bellows diameter.

As shown in fig. 1/6/10, the pressing structure B includes a spinning ring 3 and a spinning positioning element 4, as shown in fig. 1/4/5, a plurality of inclined spinning grooves a4 are respectively formed through the outer cylindrical surfaces of the interface ends at both ends of the joint body a, as shown in fig. 3/8, the spinning positioning element 4 is provided with a plurality of lugs 42 which pass through lug holes 32 of the spinning ring 3 and are positioned in a spinning groove a4, as shown in fig. 12, the cylindrical surface of the spinning sleeve 7 is provided with a plurality of axial protrusions 71 for fixing the lugs 42 of the spinning positioning element 4, and the spinning sleeve 7 drives the lugs 42 to move towards the middle in the spinning groove a4, so as to drive the spinning ring 3 to axially press the sealing element 2.

As shown in fig. 1, the inner wall of the body retraction position a9 of the joint body a has a vertical step surface a18 which abuts against the vertical end surface of the packing 2. The inner wall of the sealing element 2 is sealed with the outer wall of the corrugated pipe, the outer wall of the sealing element 2 is sealed with the inner wall of the joint main body, in addition, the sealing element 2 and the vertical end face of the shrinkage contact end in the main body and the inner end face of the shrinkage contact end in the main body form sealing, and the sealing performance is better due to the fact that one layer of sealing structure is added.

As shown in fig. 4/5, the spinning groove a4 of the joint body a is in the shape of a slanted hook along the circumference, the initial position a41 is farthest from the central axis of the body, the bending position a42 is closest to the central axis of the body, the fixing position a43 is located between the initial position a41 and the bending position a42 along the axis, the plurality of lugs 42 on the spinning positioning member 4 pass through the spinning groove a4, the lugs 42 are in the release state at the initial position a41, and the spinning ring 3 is in the pressing state of the sealing member 2 at the fixing position a 43. The function of the bent position a42 is that the lug 42 must overcome the resistance generated by the spinning ring 3 to further compress the sealing element 2 when passing through the bent position a42, and then can rotate from the fixed position a43 to the initial position a41, so as to ensure that the joint can be stably in a sealing state.

As shown in fig. 7/9, the other end of the sealing member 2 abutting against the inner end face of the main body retraction position a9 is provided with a pressing outer inclined surface 21, and the corresponding spinning ring 3 is provided with a pressing inner inclined surface 33 closely fitting with the pressing outer inclined surface 21.

As shown in fig. 5/11, the buckle structure C includes a buckle elastic seat 6 and a plurality of buckle parts 5, the cylindrical surface of the buckle elastic seat 6 has a broken buckle seat notch 62, the joint main body a has a buckle hole a7, the lower part of the buckle part 5 has a buckle tip 51 passing through the buckle hole a7, the spinning sleeve 7 is rotated by a certain angle, and the buckle tip 51 of the buckle part 5 is buckled in the groove on the corrugated tube 8; the function of buckle seat breach is that open the breach and make things convenient for buckle elastic seat's installation and dismantlement.

As shown in fig. 11, the elastic buckle seat 6 has a plurality of pairs of elastic pieces 61, and both sides of the buckle center 51 inside the buckle 5 press on the pairs of elastic pieces 61 of the elastic buckle seat 6; as shown in fig. 12, the cylindrical surface of the spinning sleeve 7 at the end far from the retracted position a9 in the main body a of the joint main body a has a plurality of pressing recesses 73 for pressing the fasteners 5. The elastic sheet 61 is abutted against the inner wall of the fastener 5, and the notch 62 of the fastener seat is elastically opened and sleeved on the joint main body A when the fastener elastic seat 6 is installed.

As shown in fig. 5, two ends of the connector body a are respectively provided with a concave snap-fit seat a5, an outer end of the snap-fit seat a5 of the connector body a is a pressure-bearing flange a6, a snap-fit hole a7 is formed in a concave ring surface of the snap-fit seat a5, and an upper portion of the snap-fit element 5 is fixed in the concave ring surface of the snap-fit seat a 5.

As shown in fig. 5/11, the latch 5 has a latch tip 51 that passes through the latch aperture a 7. The spinning sleeve 7 is rotated for a certain angle, a clamping center 51 arranged on the clamping piece 5 is buckled into a groove on the corrugated pipe 8, the spinning ring 3 pushes and presses the sealing piece 2 to contract inwards, the inner wall of the sealing piece 2 presses the corrugated pipe 8, and the outer wall presses the joint main body A.

As shown in fig. 11/12, the pressing indent 73 on the spinning sleeve 7 presses the snap 5, the snap tip 51 snaps into the groove of the bellows, the lug 42 on the spinning positioning member 4 moves toward the center of the joint body a in the axial protrusion 71 on the spinning sleeve 7, and the spinning ring 3 presses the sealing member 2.

As shown in fig. 8/10, the spinning ring 3 has an axial deformation notch 31, the spinning positioning member 4 has an axial contraction opening 41, two sides of the contraction opening 41 extend outward to form a raised straight edge 43, and the inner wall of the spinning ring 3 has a straight edge groove 34 matching with the raised straight edge 43. When the spinning ring 3 is installed, the spinning ring 3 is sleeved in the joint main body A through contraction of the deformation notch 31. The spinning positioning piece 4 is provided with a shrinkage buckle opening 41, and when the spinning positioning piece 4 is installed, the spinning ring 3 is sleeved with the shrinkage buckle opening 41 in a deformation mode.

As shown in fig. 12, a cylindrical surface of the spinning sleeve 7 near a retracted position a9 in the main body a of the joint main body a is provided with a sleeve convex ring 74, as shown in fig. 5, a main body convex ring A3 engaged with the sleeve convex ring 74 is provided between the retracted position a9 in the main body a and the spinning groove a4, and a plurality of convex ring deformation holes A8 extending axially and towards two sides are provided on the main body convex ring A3.

As shown in fig. 13, a triangular mark 72 is provided on the axial protrusion 71 of the spinning sleeve 7, and a locking mark a2 and a loosening mark a1 are provided on the joint body a;

when the spinning sleeve 7 rotates to align the triangular mark 72 with the locking mark A2 on the joint main body A, the pressing indent 73 on the spinning sleeve 7 presses the fastener 5, the fastener tip 51 is fastened into the groove of the corrugated pipe 8, the lug 42 of the spinning positioning piece 4 moves towards the middle of the joint main body A in the axial bulge 71 of the spinning sleeve 7, and the spinning ring 3 presses the sealing piece 2;

when the spinning sleeve 7 rotates to align the triangular mark 72 with the loosening mark A1 on the joint main body A, the pressing concave part 73 on the spinning sleeve 7 staggers the buckling piece 5, the elastic sheet 61 on the buckling elastic seat 6 pushes the buckling piece 5 in the radial direction, the buckling tip 51 is popped out from the groove of the corrugated pipe 8, the lug 42 of the spinning positioning piece 4 moves away from the center of the joint main body A in the axial bulge 71 of the spinning sleeve 7, and the spinning ring 3 is away from the sealing piece 2.

FIG. 14 is a cross-sectional view of the first embodiment of the present invention showing the locking and releasing state on the left side, i.e., a cross-sectional view E-E in FIG. 15; the right side is in a spring-open state, i.e. a cross-sectional view F-F shown in FIG. 16; this bellows quick-operation joint sets up the main part of joint main part and contracts the position to contract the position inner wall in the main part and establish the terminal surface that offsets with the bellows tip, this terminal surface location restriction bellows inserts the degree of depth that connects the main part, easy to assemble. The groove of the corrugated pipe is utilized for buckling and fixing, during installation, as long as the rotary spinning sleeve is rotated, the corrugated pipe can be locked by the buckling structure, the sealing element is radially contracted by extrusion of the rotary spinning ring, the inner wall of the sealing element is sealed with the outer wall of the corrugated pipe, the outer wall of the sealing element is sealed with the inner wall of the joint main body, the corrugated pipe and the joint main body are compressed and sealed through the sealing element, and the sealing performance is good. When the corrugated pipe connector is disassembled, the rotary pressing sleeve only needs to be rotated reversely, the buckle structure can be popped out from the groove of the corrugated pipe, and the sealing element is separated from the compression of the rotary pressing ring, so that the corrugated pipe can be taken out from the connector. The disassembly and assembly are convenient and quick, and the operation and construction can be completed quickly.

As shown in fig. 18 to 22, the second embodiment of the bellows quick coupler of the present invention is different from the first embodiment in that, as shown in fig. 18, the extrusion structure B includes a notched extrusion member 9 and a rotary extrusion member 010, as shown in fig. 21, the notched extrusion member 9 is provided with a radial positioning lug 91, an extrusion burring 92 of one end surface and a plurality of recessed teeth 93 of the other end surface, and the rotary extrusion member 010 is provided with a radial rotary lug 0101 and a plurality of convex teeth 0102 fitted with the plurality of recessed teeth 93 of the notched extrusion member 9.

As shown in fig. 22, the cylindrical surface of the spinning sleeve 7 is provided with a rotary lug hole 75, and as shown in fig. 19, the joint body a is provided with a rotary flat groove a10 and an axial positioning groove a11 around the outer circumference; as shown in fig. 20, the positioning lug 91 passes through the axial positioning slot a11 to be flush with the outer circumferential surface, and the rotating lug 0101 passes through the rotating flat slot a10 and the rotating lug hole 75 on the spinning sleeve 7; the spinning sleeve 7 is rotated, the rotating extrusion part 010 rotates in the rotating flat groove A10, the convex teeth 0102 are matched with the corresponding concave teeth 93, the concave tooth extrusion part 9 axially moves in the axial positioning groove A11, and the pressing flange 92 presses the sealing part 2 to form compression sealing.

As shown in fig. 23 to 29, a third embodiment of the quick coupler for corrugated pipes according to the present invention is different from the first embodiment in that, as shown in fig. 23, the sealing member 2 is a customized sealing member matching with the concave shape of the corrugated pipe 8, and a groove is provided on the outer cylindrical surface of the sealing member 2 sealed with the inner wall of the coupler body; the interface end of the joint main body is not provided with an extrusion structure.

As shown in fig. 29, the outer cylindrical surface of the spinning sleeve 7 is provided with a spring groove 76, a radial pressing indent 73 and an axial limiting convex ring 78 which surround the outer cylindrical surface in sequence from the direction of a retraction position a9 in the body; as shown in fig. 26, a spring rib a13, an elastic mounting notch a16 and a body positioning convex ring a12 are sequentially arranged on the outer cylindrical surface of the joint body a from the direction of the body retraction position a9, and the elastic mounting notch a16 is axially arranged to extend from the end surface of the joint body a to disconnect the body positioning convex ring a 12.

As shown in fig. 23/27, a compression spring 012 surrounding the outer cylindrical surface and abutting against a spring rib a13 is placed in the spring groove 76, the spinning sleeve 7 is rotated until the pressing indent 73 presses the latch 5, and the latch tip 51 at the lower part of the latch 5 passes through the latch hole a7 and is latched into the groove on the corrugated tube 8; the bulge of the corrugated pipe 8, the main body positioning convex ring A12 of the joint main body A and the axial limiting convex ring 78 of the spinning sleeve 7 are sequentially pressed from inside to outside. The mounted spinning sleeve 7 is pressed on the spring flange A13 by the compression spring 012, and elastic potential energy is stored, so that the spinning sleeve 7 is better fixed, and the spinning sleeve is automatically bounced off during disassembly.

As shown in fig. 30-35, the fourth embodiment of the bellows quick coupler of the present invention differs from the first embodiment in that seal 2 is an O-ring 015 seated in a groove of bellows 8, as shown in fig. 30/32, and may be placed in two adjacent grooves of each bellows head. The interface end of the joint main body is not provided with an extrusion structure.

As shown in fig. 30, the snap structure C includes a disc spring 013 and a disc spring seat 014 pressing the disc spring 013, and the joint body a has a disc spring fixing step a19 vertically supporting the disc spring 013 except for the position where the inner wall of the joint body a is fixed to the O-ring 015;

as shown in fig. 31/33/34, a plurality of sleeve mounting holes a15 are formed on the cylindrical surface of the interface end a of the connector main body, a plurality of ring pressure inner buckles 79 are formed on the inner cylindrical surface of the spinning sleeve 7, and the ring pressure inner buckles 79 are buckled into the sleeve mounting holes a 15; as shown in fig. 30, the outer end surface of the spinning sleeve is provided with an inner ring surface 712, the outer end surface of the disc spring seat 014 is provided with a fixing step 0141, and the inner ring surface of the spinning sleeve is pressed against the fixing step 0141 of the disc spring seat 014; the two ends of the joint main body A are provided with a plurality of axial elastic mounting notches A16 to facilitate the mounting of the spinning sleeve 7.

As shown in fig. 36 to 37, the fifth embodiment of the bellows quick coupler of the present invention differs from the fourth embodiment in that the disc spring 013 has barbs 0131 to accommodate the corrugation grooves, and the disc spring has better force-bearing performance.

As shown in fig. 38 to 46, the sixth embodiment of the quick coupler for corrugated pipes of the present invention is different from the fourth embodiment in that, as shown in fig. 38, the fastening structure C comprises a radial expansion ring 016 and a quick release latch 017, as shown in fig. 42, the inner wall of the radial expansion ring 016 has a plurality of radial protrusions 0162 surrounding the groove of the corrugated pipe 8, the radial expansion ring 016 contracts radially to lock the radial protrusions 0162 in the groove of the corrugated pipe 8, and a plurality of axial inclined grooves 0161 are formed on the cylindrical surface of the radial expansion ring 016; as shown in fig. 44, the quick release latch 017 has a latch torus 0173, the latch torus 0173 extends axially to form a plurality of extrusion strips 0171, as shown in fig. 40, the extrusion strips 0171 are inserted into the inclined plane grooves 0161 of the radial expansion ring 016 to realize radial contraction of the radial expansion ring, the extrusion strips 0171 are separated from the inclined plane grooves 0161, and the radial protrusions of the radial expansion ring 016 automatically spring out and separate from the grooves of the corrugated pipe 8.

As shown in fig. 44, two elastic buckling strips 0172 are axially symmetrical on the quick release latch 017, an elastic buckle 0174 is arranged on the elastic buckling strip 0172, and the elastic buckle 0174 has the function that the latch cannot be disengaged when the latch is locked, as shown in fig. 44, an inner ring surface 712 is arranged on the outer end surface of the spinning sleeve, and a latch through hole 710 through which an extrusion strip 0171 of the quick release latch 017 passes and an elastic buckling hole 711 through which the elastic buckling strip 0172 passes and buckles the elastic buckle are arranged on the inner ring surface.

As shown in FIG. 45/46, the upper portion of FIG. 46 is in a quick release latch pulled out and sprung open state and the lower portion is in a quick release latch inserted and locked state. The bellows quick connector of this embodiment controls the buckling of the radial expansion ring into and out of the bellows groove by insertion and extraction of the quick release latch.

In summary, the present invention, as shown in the specification and the drawings, is prepared into an actual sample and tested by multiple use tests, and from the test results, the invention can achieve the expected purpose and the practicability is needless to say. The above-mentioned embodiments are merely provided for convenience of illustration of the present invention and are not intended to be limiting in form; those skilled in the art should understand that they can easily make various changes and modifications to the disclosed embodiments without departing from the scope of the present invention.

Claims

1. A bellows quick-operation joint, includes joint main part (A), its characterized in that: the corrugated pipe joint is characterized in that a sealing element (2), a clamping structure (C) and a spinning sleeve (7) are respectively arranged at the joint end of the joint main body (A), the clamping structure (C) is sleeved inside the spinning sleeve (7), the spinning sleeve (7) is sleeved outside the joint main body (A), the clamping structure (C) acts on the clamping structure (C) through the spinning sleeve (7), and the clamping structure (C) is buckled into a groove of a corrugated pipe to fix the corrugated pipe.

2. A bellows quick-fit joint as claimed in claim 1 wherein the snap structure (C) comprises a snap spring seat (6) and a plurality of snap members (5), the snap members (5) being resiliently mounted on a cylindrical surface of the snap spring seat (6);

the clamping piece (5) is provided with a clamping tip (51), a clamping hole (A7) is formed in the interface end of the joint main body (A), a plurality of pressing concaves (73) are formed in the cylindrical surface of the spinning sleeve (7), the clamping piece (5) is pressed by the pressing concaves (73), and the clamping tip (51) penetrates through the clamping elastic seat (6) and the clamping hole (A7) and is buckled into a groove of the corrugated pipe (8).

3. The bellows quick coupler of claim 1 wherein the snap fit structure (C) comprises a disc spring (013) and a disc spring seat (014), the disc spring (013) having an outer cylindrical ring and an inner conical ring connected as a unit, the coupler body (a) interface end having a disc spring retention step (a 19); the outer cylindrical ring is tightly attached to the inner wall of the connector end of the connector main body (A) and the disc spring fixing step (A19), the inner conical ring is buckled into a groove of the corrugated pipe (8), and the disc spring seat (014) is located between the inner conical ring and the end face of the spinning sleeve (7).

4. A bellows quick coupler as claimed in claim 3 wherein the inner conical ring of said disc spring (013) has barbs (0131) to accommodate the corrugation grooves.

5. The quick coupler for corrugated pipes as claimed in claim 1 wherein the snap fit structure (C) comprises a radial expansion ring (016) and a quick release latch (017), the inner wall of the radial expansion ring (016) has a plurality of radial protrusions (0162) surrounding the groove of the corrugated pipe (8), the radial expansion ring (016) contracts radially to lock the radial protrusions in the groove of the corrugated pipe (8), and the cylindrical surface of the radial expansion ring (016) is provided with a plurality of axial inclined grooves (0161); the quick-release bolt (017) is provided with a bolt torus (0173), a plurality of extrusion strips (0171) axially extend from the bolt torus (0173), the extrusion strips (0171) are inserted into an inclined plane groove (0161) of the radial telescopic ring (016) and radially contract towards the radial telescopic ring, the extrusion strips (0171) are separated from the inclined plane groove (0161), and a radial bulge of the radial telescopic ring (016) automatically bounces away and is separated from a groove of the corrugated pipe (8).

6. The quick-assembly joint of corrugated pipes as claimed in claim 5, wherein the quick-release pin (017) is provided with two axially symmetrical elastic buckling strips (0172), the elastic buckling strips (0172) are provided with elastic buckles (0174), the outer end surface of the spinning sleeve is provided with an inner ring surface (712), and the inner ring surface is provided with a pin through hole (710) through which the extrusion strip (0171) passes and an elastic buckling hole (711) through which the elastic buckling strips (0172) pass and buckle the elastic buckles.

7. The bellows quick connector as claimed in claim 1 wherein the interface end of the connector body (a) is provided with a compression structure (B) located between the seal (2) and the snap structure (C), and rotation of the spinning sleeve (7) causes the compression structure (B) to move axially to compress or release the seal (2).

8. The quick-assembly joint of the corrugated pipe as claimed in claim 7, wherein the extrusion structure (B) includes a spinning ring (3) and a spinning positioning member (4), the joint end of the joint body (a) is provided with a plurality of inclined spinning grooves (a4), the spinning positioning member (4) is provided with a plurality of lugs (42) which pass through the spinning ring (3) and are positioned in the spinning grooves (a4), the cylindrical surface of the spinning sleeve (7) is provided with a plurality of axial protrusions (71) for fixing the lugs (42) of the spinning positioning member (4), and the spinning sleeve (7) is rotated to drive the lugs (42) to move towards the middle in the spinning grooves (a4) so as to drive the spinning ring (3) to axially compress the sealing member (2).

9. Corrugated tube quick connector according to claim 8, characterized in that the spinning groove (a4) has an initial position (a41), a bent position (a42) and a fixing position (a43), the lug (42) being in a state in which the spinning ring (3) releases the seal (2) in the initial position (a41) and in a state in which the spinning ring (3) presses the seal (2) in the fixing position (a 43).

10. The corrugated pipe quick coupler as claimed in claim 7 wherein the sealing member (2) has an extrusion outer bevel (21) at one end thereof, and the spinning ring (3) has an extrusion inner bevel (33) at one end thereof, the extrusion inner bevel (33) being engaged with the extrusion outer bevel (21).

11. The quick connector for corrugated pipes as set forth in claim 2 wherein the connector body (a) has an inwardly concave snap-fit seat (a5) at the interface end, said snap-fit seat (a5) has a pressure-bearing flange (a6) at the outer end, and said snap-fit hole (a7) is formed in the inwardly concave annular surface of the snap-fit seat (a 5).

12. A corrugated tube quick coupler as claimed in claim 7 wherein the spinning ring (3) is provided with an axial deformation notch (31), the spinning locating member (4) is provided with an axial contraction opening (41), two sides of the contraction opening (41) extend outward to form a raised straight edge (43), and the inner wall of the spinning ring (3) is provided with a straight edge groove (34) which is matched with the raised straight edge (43).

13. The quick connector for corrugated pipes as claimed in claim 1 wherein the cylindrical surface of the spinning sleeve (7) is provided with a sleeve convex ring (74), the joint end of the connector body (a) is provided with a body convex ring (A3) engaged with the sleeve convex ring (74), and the body convex ring (A3) is provided with a plurality of convex ring deformation holes (A8) extending axially and bilaterally.

14. The quick connector for corrugated pipes as set forth in claim 1 wherein the axial projection (71) of the sleeve (7) is provided with a triangular mark (72) and the connection end of the connector body (a) is provided with a locking mark (a2) and a release mark (a 1).

15. The bellows quick coupler as claimed in claim 7 wherein the extrusion structure (B) includes a notched extrusion (9) and a rotating extrusion (010), the notched extrusion (9) having a plurality of radial positioning lugs (91) and a plurality of notched teeth (93) on one end face, the rotating extrusion (010) having a plurality of radial rotating lugs (0101) and a plurality of convex teeth (0102), the notched teeth (93) cooperating with the convex teeth (0102);

the cylindrical surface of the spinning sleeve (7) is provided with a plurality of rotary lug holes (75), and the interface end of the joint main body (A) is provided with a plurality of rotary flat grooves (A10) and axial positioning grooves (A11) which surround the outer circumference; the positioning lug (91) penetrates through the axial positioning groove (A11), and the rotating lug (0101) penetrates through the rotating flat groove (A10) and the rotating lug hole (75); the rotary spinning sleeve (7) is rotated, the rotary extrusion piece (010) rotates in the rotary flat groove (A10), the convex teeth (0102) are matched with the corresponding concave teeth (93), the concave tooth extrusion piece (9) axially moves in the axial positioning groove (A11), and the pressing sealing piece (2) forms compression sealing.

16. A bellows quick-fit joint as claimed in claim 2 wherein said seal (2) is a custom made seal (2) matching the concave shape of the bellows (8);

a spring groove (76), a radial pressing inner recess (73) and an axial limiting convex ring (78) which surround the outer cylindrical surface are sequentially arranged on the outer cylindrical surface of the spinning sleeve (7) from the end surface; a spring flange (A13), an elastic mounting notch (A16) and a main body positioning convex ring (A12) are arranged on the outer cylindrical surface of the interface end of the joint main body (A), and the elastic mounting notch (A16) is axially arranged to extend from the end surface of the joint main body (A) to disconnect the main body positioning convex ring (A12);

the corrugated pipe is characterized in that a compression spring (012) surrounding an outer cylindrical surface is placed in the spring groove (76), the compression spring (012) abuts against a spring flange (A13), a spinning sleeve (7) is rotated to a pressing inner recess (73) to press a buckle piece (5), and a buckle tip (51) of the buckle piece (5) penetrates through a buckle hole (A7) to be buckled into a groove of a corrugated pipe (8).

17. A bellows quick-fit joint as claimed in claim 1, characterized in that said sealing element (2) is an O-ring seal (015) mounted in a groove in the bellows (8).

18. The quick connector for corrugated pipes as set forth in claim 1 wherein the cylindrical surface of the connection end of said connector body (a) is provided with a plurality of sleeve mounting holes (a15), the cylindrical surface of the inner cylindrical surface of the spinning sleeve (7) is provided with a plurality of ring pressure inner snap fasteners (79), and said ring pressure inner snap fasteners (79) snap into said sleeve mounting holes (a 15); the joint end of the joint main body (A) is provided with a plurality of axial elastic mounting notches (A16).