CN112361104A

CN112361104A - Double-safety quick joint

Info

Publication number: CN112361104A
Application number: CN202011382307.4A
Authority: CN
Inventors: 葛言锋; 赵晓东
Original assignee: Cooper Standard Automotive Suzhou Co ltd
Current assignee: Cooper Standard Automotive Suzhou Co ltd; Cooper Standard Automotive Kunshan Co Ltd
Priority date: 2020-12-01
Filing date: 2020-12-01
Publication date: 2021-02-12

Abstract

The invention discloses a novel double-safety quick joint, wherein a butt joint pipeline is assembled in the quick joint, and the surface of the quick joint is provided with an annular part with the diameter larger than that of the pipeline, and the quick joint comprises an upper locking buckle part and a lower locking buckle part; lower locking buckle spare is including spacing lower clamping part that is the opening symmetry setting that makes progress between first connecting portion and second connecting portion, locates two lower clamping part lower locking parts on the relative side, it includes the clamp plate to lock the buckle spare, locates the clamp plate rear end and is the last clamping part that the opening symmetry set up downwards, locates the locking part on two last clamping part relative sides, go up the clamping part outside and the inboard dislocation crimping of lower clamping part, lower locking part keeps off the open end that is located the barrel-shaped body and spacing annular portion, it is located the rear of locking part down and only down the spacing annular portion in locking part failure back to lock the part. The invention realizes the quick joint with the double-effect locking and limiting functions.

Description

Double-safety quick joint

Technical Field

The invention belongs to the technical field of pipeline connection, and particularly relates to a novel double-insurance quick connector.

Background

The quick connector is a connector which can realize the connection or disconnection of pipelines without tools, and is widely applied to the pipeline connection of gas, gas-liquid sharing, oil pressure and the like, in particular to the connection of automobile fuel pipelines. Quick-operation joint of application among current automobile fuel pipeline is not pairing the assembly transportation in, and locking buckle ware receives the collision extrusion easily to cause locking buckle ware pressfitting, when the assembly is paired like this, cause an assembly failure, need rework the locking buckle ware that resets and just can continue the assembly, influence production efficiency.

Current patent CN201510493975.7 a quick-operation joint of complete assembly belongs to quick-operation joint's second generation product, and it is spacing through the effective clamping that locking buckle ware carries out the butt joint pipeline, when there is great drawing force in the butt joint pipeline, still can appear connecting the off-line problem.

Disclosure of Invention

The invention aims to solve the technical problems and provides a novel double-safety quick joint, so that the quick joint with the double-effect locking and limiting functions is realized. In order to achieve the purpose, the technical scheme of the invention is as follows:

the novel double-safety quick joint is internally provided with a butt joint pipeline, and the surface of the quick joint is provided with an annular part with the diameter larger than that of the pipeline, and the novel double-safety quick joint comprises a joint body, an upper locking buckle part and a lower locking buckle part which is oppositely matched with the upper locking buckle part and is jointly embedded into the joint body; the joint body comprises a cylindrical body matched with the butt joint pipeline, a hollow component arranged at the end part of the cylindrical body and a baffle plate arranged on the cylindrical body, wherein the hollow component comprises a first connecting part and a second connecting part which is in interval correspondence with the first connecting part, slots positioned at two sides of the cylindrical body are respectively formed between two sides of the baffle plate and the first connecting part,

the lower locking buckle piece comprises lower clamp parts which are limited between the first connecting part and the second connecting part and are symmetrically arranged with an upward opening, and lower locking parts which are arranged on the opposite sides of the two lower clamp parts, the upper locking buckle piece comprises a pressing plate, upper clamp parts which are arranged at the rear end of the pressing plate and are symmetrically arranged with a downward opening, inserting plates which are arranged at the front end of the pressing plate and are correspondingly inserted into the inserting grooves, and upper locking parts which are arranged on the opposite sides of the two upper clamp parts,

the outer side of the upper clamp part is in staggered pressure joint with the inner side of the lower clamp part, the lower locking part is positioned at the opening end of the cylindrical body and limits the annular part, the upper locking part is positioned behind the lower locking part, and only the lower locking part is limited by the annular part after failure.

Specifically, a first cavity for accommodating the butt joint pipeline and a second cavity communicated with the first cavity are arranged inside the cylindrical body; first cavity and second cavity level link up or the perpendicular intercommunication, and the barrel-shaped body deviates from the tip horizontal connection or the perpendicular connection of fretwork subassembly and is connected with the adapter, communicates with the second cavity in the adapter.

Specifically, a step surface is arranged at the joint of the first cavity and the second cavity, and the aperture of the first cavity is larger than that of the second cavity; the wear-resisting assembly is arranged in the first cavity and matched with the sleeve and is in limited butt joint with the pipeline, the wear-resisting assembly comprises a sleeve, a first sealing ring, a sleeve ring and a second sealing ring which are sequentially contained in the first cavity from outside to inside, the second sealing ring abuts against the step surface, an outer port of the first cavity is provided with an annular groove, the outer wall of the outer end of the sleeve corresponds to the annular groove in a copying mode, and the inner wall of the outer end of the sleeve corresponds to the annular groove in an abutting mode.

Specifically, the fretwork subassembly is still including the rib of connecting first connecting portion upper portion and second connecting portion upper portion bilateral symmetry position and connect the first location portion between first connecting portion lower part and the second connecting portion lower part, is equipped with the second location portion that is located first location portion top between first connecting portion and the second connecting portion, forms the constant head tank that link up between first location portion and the second location portion, is equipped with in the second connecting portion to dodge the window that docks the pipeline with communicating being used for of first cavity.

Specifically, the lower locking buckle piece further comprises a U-shaped locking part, lower supporting parts arranged on two sides of the upper part of the U-shaped locking part, insertion blocks arranged on two sides in the opening position of the U-shaped locking part, and a positioning column arranged at the top end of the lower clamp part and extending axially;

u type locking portion and the lower support portion of its both sides form the arcwall face that is used for supporting the butt joint pipeline, and U type locking portion lower part both sides are located to two lower clamp portions, and the open position of U type locking portion is pegged graft on second location portion and butt to first location portion, and the piece that pegs graft matches for should pegging graft with the constant head tank.

Specifically, the top of the first connecting portion is located two sides of the central axis of the first cavity and is provided with an expansion groove respectively, the positioning column extends and is arranged in the expansion groove, and a reserved space is reserved between the lower clamp portion and the first connecting portion and between the lower clamp portion and the second connecting portion.

Specifically, a sliding slope surface is arranged on the top of the lower clamp portion close to the inner side, and a sliding block for crimping the sliding slope surface is arranged at the joint of the upper clamp portion and the pressing plate.

Specifically, two be equipped with the supporting part between the upper clamp portion, the both sides of going up the supporting part respectively with last clamp portion between leave the deformation clearance, the bottom surface of going up the supporting part is the arcwall face.

Specifically, the upper clamp part is inserted into the reserved space and attached to the lower clamp part, and locking bosses are arranged at the rear ends of the lower supporting parts on two sides of the upper part of the U-shaped locking part; the bottom of the upper clamp part is provided with a locking part, and the inner side of the locking part is provided with a locking clamping jaw correspondingly matched with the locking boss.

Specifically, a plurality of clamping blocks are arranged on the outer side of the plug board along the length direction of the plug board, the plug board is correspondingly matched with the slots in an inserted manner, limiting platforms located below the cylindrical body are arranged on two sides of the back face of the first connecting portion, and clamping hooks which are correspondingly hung with the limiting platforms are arranged on the side face, opposite to the first connecting portion, of the bottom of the plug board.

Compared with the prior art, the novel double-safety quick joint has the following beneficial effects:

the lower locking buckle part is matched with the hollow component, and the annular part of the butted pipeline is blocked by utilizing the deformation expansion state of the lower locking part, so that the first-pass safety anti-falling arrangement of the butted pipeline is realized; the lower locking buckle piece is matched with the upper locking buckle piece in an opposite insertion and clamping manner, so that multiple positions are effectively limited and fixed, and the annular part of the butted pipeline is blocked by utilizing the deformation and shrinkage state of the upper locking part, so that the second safety anti-falling arrangement of the butted pipeline is realized; overall structure assembles rationally, when not packing into the butt joint pipeline, locks the buckle spare and can avoid automatic auto-lock operation by the slot spacing, prevents that the collision from causing the trouble that needs the reassembling operation, belongs to the novel quick-operation joint of third generation. The quick joint realizes the efficient switching of the butt joint pipeline, and the application working condition range is wider.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a second schematic structural diagram of the present embodiment;

FIG. 3 is a schematic axial sectional view of the present embodiment;

FIG. 4 is a schematic structural diagram of the joint body according to the present embodiment;

FIG. 5 is a schematic structural view of the lower locking fastener in this embodiment;

FIG. 6 is a schematic view of the upper locking fastener in this embodiment;

FIG. 7 is a second schematic view of the upper locking fastener structure of the present embodiment;

FIG. 8 is a cross-sectional view of the upper locking clip of the present embodiment before assembly;

FIG. 9 is a second cross-sectional view of the upper locking fastener of the present embodiment before assembly;

FIG. 10 is a side view of the present embodiment with the upper and lower locking catches fully assembled;

FIG. 11 is a schematic cross-sectional view of the upper and lower locking snaps shown fully assembled in this embodiment;

the figures in the drawings represent:

1 joint body, 11 cylindrical bodies, 111 first cavity, 112 second cavity, 113 adapter, 114 step surface, 12 hollowed-out component, 121 first connecting part, 122 second connecting part, 123 reinforcing part, 13 baffle, 131 slot, 132 notch part, 133 flat cutting surface, 14 first positioning part, 141 second positioning part, 142 positioning groove, 15 expanding groove, 16 reinforcing block, 17 limit table, 18 window,

2 upper locking fastener, 21 pressing plate, 22 upper clamping part, 23 inserting plate, 231 clamping block, 232 clamping hook, 24 upper locking part, 25 sliding block, 26 upper supporting part, 27 locking part, 28 locking claw,

3 lower locking buckle pieces, 31U-shaped locking parts, 32 lower supporting parts, 33 inserting blocks, 34 lower clamping parts, 35 lower locking parts, 36 positioning columns, 37 locking bosses, 38 fixing bosses, 39 sliding slopes,

4 butt joint pipeline, 41 annular part, 42 sleeve, 43 first sealing ring, 44 lantern ring, 45 second sealing ring, 46 annular groove.

Detailed Description

The technical solutions in the embodiments of the present invention are described clearly and completely below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.

Example (b):

referring to fig. 1-11, the present embodiment is a novel double-safety quick coupling, which includes a coupling body 1, an upper locking fastener 2 press-fitted and locked with the coupling body 1, and a lower locking fastener 3 relatively fitted and embedded into the coupling body 1 together with the upper locking fastener 2.

The quick coupling is fitted with a butt-joint pipe 4, the butt-joint pipe 4 being of tubular construction, the surface of which is provided with an annular portion 41 having a diameter greater than the diameter of the pipe.

The connector body 1 is an injection molding integrated structure and comprises a hollow cylindrical body 11, a hollow component 12 arranged at the end part of the cylindrical body 11, and a baffle 13 arranged on the outer wall of the cylindrical body 11 and connected with the hollow component 12.

A first cavity 111 for accommodating the butt joint pipeline 4 and a second cavity 112 communicated with the first cavity 111 are arranged inside the cylindrical body 11; the first cavity 111 and the second cavity 112 are horizontally communicated or vertically communicated. The end portion of the cylindrical body 11 departing from the hollowed-out component 12 is horizontally connected or vertically connected with an adapter 113, the adapter 113 is butted to a pipeline mounted according to corresponding requirements, and the adapter 113 is communicated with the second cavity 112.

A step surface 114 is arranged at the joint of the first cavity 111 and the second cavity 112, and the aperture of the first cavity 111 is larger than that of the second cavity 112.

The first cavity 111 is internally provided with a wear-resistant assembly which is matched, sleeved and limited and butted with the pipeline 4, the wear-resistant assembly comprises a sleeve 42, a first sealing ring 43, a sleeve ring 44 and a second sealing ring 45 which are sequentially accommodated in the first cavity 111 from outside to inside, and the second sealing ring 45 is abutted to the step surface 114 to form the moving distance of the axial limiting wear-resistant assembly. The outer port of the first cavity 111 is provided with an annular groove 46, the outer end outer wall of the sleeve 42 corresponds to the annular groove 46 in a copying manner, the outer end inner wall of the sleeve 42 is correspondingly abutted against the annular part 41, and the annular part 41 of the butt joint pipeline 4 is limited by the outer end of the sleeve 42 by the depth of the insertion of the annular part into the first cavity 111.

The hollow component 12 includes a first connecting portion 121 disposed at an outer end of the cylindrical body 11 and avoiding the first cavity 111, a second connecting portion 122 spaced from the first connecting portion 121 and corresponding to the first connecting portion 122, a reinforcing portion 123 connecting upper portions of the first connecting portion 121 and upper portions of the second connecting portion 122 at symmetrical positions, and a first positioning portion 14 connecting lower portions of the first connecting portion 121 and the second connecting portion 122. A second positioning portion 141 located above the first positioning portion 14 is disposed between the first connecting portion 121 and the second connecting portion 122, and a through positioning groove 142 is formed between the first positioning portion 14 and the second positioning portion 141.

Slots 131 are formed between two sides of the baffle 13 and the first connecting portion 121 respectively and located at two sides of the cylindrical body 11. The outer side of the slot 131 is opened with a notch 132 with an upward opening, and the inner side of the slot 131 is a flat section 133 arranged on the outer wall of the cylindrical body 11.

The top of the first connecting portion 121 is located on both sides of the central axis of the first cavity 111 and is provided with an expansion slot 15, and the width of the expansion slot 15 is limited by the reinforcing portion 123.

A plurality of reinforcing blocks 16 connected to the cylindrical body 11 are arranged between the top of the first connecting portion 121 and the baffle 13 for reinforcing the strength between the first connecting portion 121 and the baffle 13.

The two sides of the back of the first connecting part 121 are provided with a limit table 17 below the cylindrical body 11.

The second connecting portion 122 is provided with a window 18 communicated with the first cavity 111 and used for avoiding the butt-jointed pipeline.

The lower locking buckle 3 comprises a U-shaped locking part 31, lower supporting parts 32 arranged on two sides of the upper part of the U-shaped locking part 31, inserting blocks 33 arranged on two sides of the opening of the U-shaped locking part 31, lower clamping parts 34 arranged on two sides of the lower part of the U-shaped locking part 31 and having openings bent symmetrically in an upward arc shape, lower locking parts 35 arranged on opposite sides of the two lower clamping parts 34, and a positioning column 36 arranged on the top end of the lower clamping part 34 and extending axially. The U-shaped locking portion 31 and the lower supporting portions 32 at both sides thereof form an arc-shaped face for supporting the docking pipe 4.

The opening position of the U-shaped locking portion 31 is inserted into the second positioning portion 141 and abuts against the first positioning portion 14, and the insertion block 33 and the positioning groove 142 are inserted and matched with each other for stabilizing the bottom connecting position of the lower locking fastener 3, and preventing the locking fastener from shaking or deviating. Locking bosses 37 are provided at both sides of the upper portion of the U-shaped locking portion 31 at the rear end of the lower support portion 32.

The lower locking portion 35 is used to limit the rear end of the annular portion 41 of the docking pipe 4 to be located at the opening end of the cylindrical body 11, and forms a first safety mechanism for preventing the annular portion 41 from retreating out of the first cavity 111.

The outer side of the lower clamp portion 35 is provided with a fixing projection 38 for enhancing the clamping strength of the lower clamp portion 35. The top of the lower clamp part 35 is provided with a sliding slope 39 near the inner side.

The positioning post 36 is extended and placed in the expanding slot 15, and the lower clamp portion 34 is attached to the first connecting portion 121 and has a space between the lower clamp portion and the second connecting portion 122.

The upper locking clip 2 includes a pressing plate 21, upper clamp portions 22 provided at the rear end of the pressing plate 21 and symmetrically provided with downward openings, an insert plate 23 provided at the front end of the pressing plate 21 and symmetrically provided, and locking portions 24 provided on the opposite sides of the upper clamp portions 22.

The connecting part of the upper clamp part 22 and the pressing plate 21 is provided with a slide block 25 for pressing the sliding slope surface 39, the outer side of the upper clamp part 22 is pressed with the inner side of the lower clamp part 34 in a staggered manner, when the slide block 25 is pressed with the sliding slope surface 39, the inner side of the lower clamp part 34 is stressed to expand, the positioning column 36 expands and moves along the expansion groove 15, and meanwhile, the outer side of the upper clamp part 22 is contracted by a reaction force.

An upper supporting part 26 is arranged between the two upper clamp parts 22, deformation gaps are reserved between two sides of the upper supporting part 26 and the upper clamp parts 22 respectively, and the bottom surface of the upper supporting part 26 is an arc-shaped surface and used for pressing the butt joint pipeline 4 in place and has the function of retreating and releasing the gear annular part 41.

The upper clamp part 22 is inserted into the reserved space and attached to the lower clamp part 34, a locking part 27 is arranged at the bottom of the upper clamp part 22, a locking claw 28 correspondingly matched with the locking boss 37 is arranged on the inner side of the locking part 27, and the locking claw 28 and the locking boss 37 are matched and stably clamped along with the stress deformation of the upper clamp part 22.

The upper locking portion 24 is used to limit the position of the annular portion 41 of the docking pipe 4 at the opening end of the cylindrical body 11, and when the first safety mechanism fails, a second safety mechanism is formed to prevent the annular portion 11 from retreating out of the first cavity 111.

The outer side of the inserting plate 23 is provided with a plurality of clamping blocks 231 along the length direction thereof, the inserting plate 23 is correspondingly matched with the inserting slot 131 in an inserting manner, the inner side of the inserting plate 23 is attached to the flat section 133, and the clamping blocks 231 slide into and are limited at the outer edge of the inserting slot 131 along the notch part 132 to prevent the inserting plate 23 from separating from the inserting slot 131. The bottom of the inserting plate 23 is provided with a hook 232 corresponding to the limiting table 17 on the side surface of the first connecting part 121, and when the inserting plate 23 sinks along the slot 131 and is inserted in place, the upper supporting part 26 sinks and is pressed in place to the butt-joint pipeline 4.

When the novel double-safety quick connector is in a press-fit state, the butt-joint pipeline 4 penetrates into the first cavity 111 through the window 18, and the annular part 41 of the butt-joint pipeline is abutted to the corresponding position of the sleeve 42; the lower locking portion 35 of the lower locking buckle piece 3 is located at the rear end of the annular portion 41 of the butt joint pipeline 4, the upper locking portion 24 of the upper locking buckle piece 2 is located behind the lower locking portion 35, the locking piece 27 and the locking boss 37 are clamped in place, the inserting plate 23 and the inserting groove 131 are clamped in place, the sliding slope 39 and the sliding block 25 are in press fit in place, the upper supporting portion 26 and the lower supporting portion 32 are matched in place with the butt joint pipeline 4, and an effective anti-falling connection structure with double insurance is achieved.

In the embodiment, the lower locking buckle part 3 is arranged to be matched with the hollow component 12, and the annular part 41 of the butt joint pipeline 4 is shifted by utilizing the deformation expansion state of the lower locking part 35, so that the first safety anti-falling arrangement of the butt joint pipeline 4 is realized; the lower locking buckle piece 3 is matched with the upper locking buckle piece 2 in a mutual inserting and clamping mode, so that the multi-position is effectively limited and fixed, and the annular part 41 of the butt joint pipeline 4 is shifted by the deformation and shrinkage state of the upper locking part 24, so that the second safety anti-falling arrangement of the butt joint pipeline 4 is realized; overall structure assembles rationally, when not packing into butt joint pipeline 4, locks buckle spare 2 and can avoid automatic auto-lock operation by slot 131 is spacing, prevents that the collision from causing the trouble that needs the reassembly operation, belongs to the novel quick-operation joint of third generation. The quick joint realizes the efficient switching of the butt joint pipeline, and the application working condition range is wider.

What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.

Claims

1. Novel dual fail-safe quick-operation joint is equipped with the butt joint pipeline in the quick-operation joint, and its surface is provided with a diameter and is greater than the annular portion of pipeline diameter, its characterized in that: the connector comprises a connector body, an upper locking buckle part and a lower locking buckle part which is relatively matched with the upper locking buckle part and is embedded into the connector body together; the joint body comprises a cylindrical body matched with the butt joint pipeline, a hollow component arranged at the end part of the cylindrical body and a baffle plate arranged on the cylindrical body, wherein the hollow component comprises a first connecting part and a second connecting part which is in interval correspondence with the first connecting part, slots positioned at two sides of the cylindrical body are respectively formed between two sides of the baffle plate and the first connecting part,

2. The new double safety quick coupling of claim 1, wherein: a first cavity for accommodating the butt joint pipeline and a second cavity communicated with the first cavity are arranged in the cylindrical body; first cavity and second cavity level link up or the perpendicular intercommunication, and the barrel-shaped body deviates from the tip horizontal connection or the perpendicular connection of fretwork subassembly and is connected with the adapter, communicates with the second cavity in the adapter.

3. The new double safety quick connector as claimed in claim 2, wherein: a step surface is arranged at the joint of the first cavity and the second cavity, and the aperture of the first cavity is larger than that of the second cavity; the wear-resisting assembly is arranged in the first cavity and matched with the sleeve and is in limited butt joint with the pipeline, the wear-resisting assembly comprises a sleeve, a first sealing ring, a sleeve ring and a second sealing ring which are sequentially contained in the first cavity from outside to inside, the second sealing ring abuts against the step surface, an outer port of the first cavity is provided with an annular groove, the outer wall of the outer end of the sleeve corresponds to the annular groove in a copying mode, and the inner wall of the outer end of the sleeve corresponds to the annular groove in an abutting mode.

4. A novel double safety quick coupling as claimed in claim 3, wherein: the hollow component further comprises a reinforcing part and a first positioning part, the reinforcing part is connected with the first connecting part upper portion and the second connecting part upper portion in bilateral symmetry, the first positioning part is connected between the first connecting part lower portion and the second connecting part lower portion, a second positioning part located above the first positioning part is arranged between the first connecting part and the second connecting part, a through positioning groove is formed between the first positioning part and the second positioning part, and a window which is communicated with the first cavity and used for avoiding a butt joint pipeline is arranged in the second connecting part.

5. The new double safety quick connector as claimed in claim 4, wherein: the lower locking buckle piece also comprises a U-shaped locking part, lower supporting parts arranged on two sides of the upper part of the U-shaped locking part, inserting blocks arranged on two sides in the opening position of the U-shaped locking part, and a positioning column arranged at the top end of the lower clamp part and extending axially;

6. The new double safety quick connector as claimed in claim 5, wherein: the top of the first connecting portion is located on two sides of the central axis of the first cavity and is provided with an expansion groove respectively, the positioning column is extended and erected in the expansion groove, and a reserved space is reserved between the lower clamp portion and the first connecting portion in a fit mode and between the lower clamp portion and the second connecting portion.

7. The new double safety quick coupling of claim 1, wherein: the top of the lower clamp part is provided with a sliding slope surface close to the inner side, and a sliding block for crimping the sliding slope surface is arranged at the joint of the upper clamp part and the pressing plate.

8. The new double safety quick coupling of claim 1, wherein: two be equipped with the supporting part between the upper clamp portion, the both sides of going up the supporting part leave the deformation clearance respectively with last clamp portion between, the bottom surface of going up the supporting part is the arcwall face.

9. The new double safety quick connector as claimed in claim 6, wherein: the upper clamp part is inserted into the reserved space and attached to the lower clamp part, and locking bosses are arranged at the two sides of the upper part of the U-shaped locking part and positioned at the rear end of the lower supporting part; the bottom of the upper clamp part is provided with a locking part, and the inner side of the locking part is provided with a locking clamping jaw correspondingly matched with the locking boss.

10. The new double safety quick coupling of claim 1, wherein: the outer side of the plug board is provided with a plurality of clamping blocks along the length direction, the plug board is correspondingly matched with the slots in an inserted manner, the two sides of the back surface of the first connecting part are provided with limiting tables positioned below the cylindrical body, and the side surface of the bottom of the plug board, which is opposite to the first connecting part, is provided with clamping hooks correspondingly hooked with the limiting tables.