CN109812630B

CN109812630B - Screw-type quick pipe fitting connector

Info

Publication number: CN109812630B
Application number: CN201910173128.0A
Authority: CN
Inventors: 周岳泉; 姜昌国
Original assignee: Ningbo Xinbang Technology Co ltd
Current assignee: Ningbo Xinbang Technology Co ltd
Priority date: 2019-03-07
Filing date: 2019-03-07
Publication date: 2024-04-26
Anticipated expiration: 2039-03-07
Also published as: CN109812630A

Abstract

The invention relates to a screwed fast pipe fitting connector which comprises a connector body and a locking screw sleeve, wherein two ends of the connector body are communicated, two ends of the connector body are respectively provided with an external thread part, the outer side of the external thread part is sleeved with the locking screw sleeve, the inside of the locking screw sleeve is axially provided with a clamping claw ring, the clamping claw ring is of an annular structure formed by surrounding one ends of a plurality of deformation sheets, the inner side wall of the other end of the deformation sheet is provided with a metal clamping sheet, the outside of the clamping claw ring is at least provided with two limiting protrusions, the external thread part is provided with a limiting groove buckled with the limiting protrusions, a compression ring and a sealing ring are axially arranged between one end of the clamping claw ring and the end part of the connector body, and the locking screw sleeve axially moves by rotating to extrude the clamping claw ring so that the other end of the deformation sheet is deformed inwards. The invention has smart structure, can axially limit the clamping claw ring, is convenient for inserting and pulling the pipe fitting, has simple production process and few working procedures, and is suitable for mass production.

Description

Screw-type quick pipe fitting connector

Technical Field

The invention relates to the field of pipe connectors, in particular to a screwed fast pipe connector.

Background

In people's life, need use many pipe fittings, like water pipe, trachea and oil pipe etc. these pipe fittings need carry out butt joint connection with the pipe fitting in the use, and present pipe fitting connector structure is complicated, and the connection complex operation often needs professional to operate, installs the leakproofness that will influence the pipe fitting connection in place, appears leaking.

Screw-type pipe connectors capable of being quickly locked are also available on the market at present, for example, the invention patent with the patent number 201721391571.8 named as a rotary locking type quick connector is that a locking hand wheel is rotated to deform a clamping piece to fix a pipe, but the structure has two problems: (1) After the locking hand wheel is unscrewed, the clamping piece is driven to axially move when the pipe fitting is pulled out, so that the clamping piece is extruded and deformed with the locking hand wheel, and the metal clamping piece cannot be pulled out smoothly; (2) The metal clamping pieces on the inner side walls of the clamping pieces are integrally injection molded with the main body part of the clamping pieces, and the process is very complex due to the large number of the metal clamping pieces, and the waste of the residual materials is relatively large, so that the large-scale production is not facilitated.

There is a need for improvements to existing pipe joints.

Disclosure of Invention

The technical problem to be solved by the invention is to provide the screwed fast pipe fitting connector which has ingenious structure, can axially limit the clamping claw ring, is convenient for plugging and unplugging pipe fittings, has simple production process and few procedures, and is suitable for mass production.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a quick pipe fitting connector of screw-type, including connector body and locking swivel nut, the both ends of connector body link up and both ends all are provided with external screw thread portion, the outside of external screw thread portion cup joint locking swivel nut, the inside axial of locking swivel nut be provided with the clamping jaw ring, this clamping jaw ring is the annular structure that a plurality of deformation piece one end linked together becomes, the other end inside wall of deformation piece on be provided with the metal clamping piece, the outside of clamping jaw ring be provided with two spacing archs at least, external screw thread portion on be provided with the spacing groove that buckles mutually with spacing arch, one end and the tip of connector body between axial be provided with clamping ring and sealing washer, locking swivel nut rotate the axial and to extrude the clamping jaw ring and make the other end of deformation piece inwards to deform when moving.

As a supplement to the technical scheme of the invention, a conical part is arranged on one side of the inner side wall of the locking screw sleeve, which is positioned on the inner thread, and the conical part extrudes the other end of the deformation sheet.

Further, one ends of the deformation sheets are connected through a connecting ring.

Furthermore, an opening is arranged on one side of the connecting ring.

Further, the inner side wall of the clamping claw ring is embedded with a metal embedded ring, and the metal clamping piece corresponding to each deformation piece is connected with the metal embedded ring.

Further, the middle part in the outside of connector body set up two spacing baffle rings relatively side by side, spacing baffle ring outwards be provided with a plurality of locking recess side by side on the terminal surface, the inboard terminal surface of locking swivel nut on be provided with locking arch, locking arch imbeds in arbitrary locking recess when the locking swivel nut screws to the end.

Further, the limiting protrusion is in a hook shape.

The beneficial effects are that: the invention relates to a screwed type quick pipe fitting connector which has ingenious structure, and the clamping claw ring is provided with a limiting protrusion and is buckled with a limiting groove to prevent the clamping claw ring from moving axially, so that a deformation sheet can only deform radially, and the clamping claw ring can not influence the insertion and extraction of a pipe fitting; the metal clamping pieces are connected into a whole by utilizing the metal embedded rings, the metal clamping pieces are not required to be installed one by one, in addition, the metal clamping pieces are not required to be integrally injection molded with the main body of the clamping claw ring, the later installation is realized, the processing technology is greatly simplified, the cost is reduced, the pipe fitting connector is suitable for mass production, the pipe fitting connector has good universality, and the pipe fitting connector can be used for replacing parts made of different materials according to different substances in a pipe fitting.

Drawings

FIG. 1 is an assembled semi-cutaway schematic view of the present invention;

FIG. 2 is a schematic view of the invention in an exploded state;

FIG. 3 is a schematic perspective view of one construction of the clamping jaw ring of the present invention;

FIG. 4 is a schematic perspective view of one construction of the clamping jaw ring of the present invention;

FIG. 5 is a mounting semi-sectional view of one construction of the clamping jaw ring of the invention.

The diagram is: 1. a locking screw sleeve; 2. a clamping jaw ring; 3. a connector body; 4. a compression ring; 5. a seal ring; 6. a limit baffle ring; 7. a limit groove; 8. a metal clip; 9. a limit protrusion; 10. a conical portion; 11. a deformation sheet; 12. a connecting ring; 14. a metal thimble; 15. an external thread portion; 16. locking the bulge; 17. locking grooves.

Detailed Description

The application will be further illustrated with reference to specific examples. It is to be understood that these examples are illustrative of the present application and are not intended to limit the scope of the present application. Furthermore, it should be understood that various changes and modifications can be made by one skilled in the art after reading the teachings of the present application, and such equivalents are intended to fall within the scope of the application as defined in the appended claims.

As shown in fig. 1-5, the technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a quick union coupling of screw, including connector body 3 and locking swivel nut 1, connector body 3's both ends link up and both ends all are provided with external screw thread portion 15, the outside of external screw thread portion 15 cup joint locking swivel nut 1, the inside axial of locking swivel nut 1 be provided with clamping jaw ring 2, this clamping jaw ring 2 is the annular structure that a plurality of deformation piece 11 one end link to each other and enclose, deformation piece 11's the other end inside wall on be provided with metal clamping piece 8, clamping jaw ring 2's outside be provided with two spacing protruding 9 at least, external screw thread portion 15 on be provided with the spacing groove 7 that buckles with spacing protruding 9 mutually, clamping jaw ring 2's one end and connector body 3's tip between axial be provided with clamping ring 4 and sealing washer 5, locking swivel nut 1 rotate during axial displacement extrusion clamping jaw ring 2 make deformation 11's the other end inwards.

The inner side wall of the locking screw sleeve 1 is provided with a conical part 10 at one side of the inner thread, and the conical part 10 extrudes the other end of the deformation sheet 11.

One end of each deformation sheet 11 is connected through a connecting ring 12, and one side of the connecting ring 12 is provided with an opening, so that the deformation sheets 11 can be conveniently machined and installed.

The metal caulking rings 14 are embedded and arranged in the inner side walls of the clamping claw rings 2, the metal clamping pieces 8 corresponding to each deformation piece 11 are connected with the metal caulking rings 14, the metal caulking rings 14 and the metal clamping pieces 8 are integrated, integral injection molding is not needed, and the installation procedure is simple.

The middle part in the outside of connector body 3 set up two spacing baffle rings 6 relatively side by side, spacing baffle ring 6 outwards be provided with a plurality of locking recess 17 side by side on the terminal surface, the inboard terminal surface of locking swivel nut 1 on be provided with locking protrusion 16, locking protrusion 16 imbeds in arbitrary one locking recess 17 when locking swivel nut 1 screws to the end, spacing protrusion 9 be hook-shaped.

As an embodiment of the present invention, when in use, a pipe is inserted into two ends of the joint body 3, then the locking screw sleeve 1 is rotated, so that the locking screw sleeve 1 moves axially, and one end of the clamping jaw ring 2 is deformed by extrusion of the conical part 10, so that the metal clamping piece 8 can clamp the pipe to prevent the pipe from moving axially, and meanwhile, the clamping jaw ring 2 can press the compression ring 4, and the pipe passes through the center of the sealing ring 5 to play a role of sealing.

When the locking screw sleeve 1 is screwed to the bottom, the locking protrusion 16 is buckled with the locking groove 17, so that the locking effect is achieved.

When the pipe fitting is required to be pulled out, only the locking screw sleeve 1 is required to be unscrewed, the clamping jaw ring 2 can be automatically opened, and the limiting protrusion 9 and the limiting groove 7 are buckled when the pipe fitting is pulled out, so that the clamping jaw ring 2 cannot axially move, and the metal clamping piece 8 cannot interfere with the pulling out of the pipe fitting.

The invention has smart structure, can axially limit the clamping claw ring, is convenient for inserting and pulling the pipe fitting, has simple production process and few working procedures, and is suitable for mass production.

Claims

1. The utility model provides a fast pipe fitting connector of screwing, includes connector body (3) and locking swivel nut (1), its characterized in that, the both ends of connector body (3) link up and both ends all are provided with external screw thread portion (15), the outside of external screw thread portion (15) cup joint locking swivel nut (1), the inside axial of locking swivel nut (1) be provided with clamping jaw ring (2), this clamping jaw ring (2) is the annular structure that a plurality of deformation piece (11) one end links up to each other, the other end inside wall of deformation piece (11) on be provided with metal clamping piece (8), the outside of clamping jaw ring (2) be provided with two spacing arch (9) at least, external screw thread portion (15) on be provided with spacing groove (7) that detain mutually with spacing arch (9), the tip of clamping jaw ring (2) between axial be provided with clamping ring (4) and sealing washer (5), locking swivel nut (1) rotate and move and make clamping jaw (2) the annular structure that one end links up, the inside wall (10) that is in the shaping of hook-shaped swivel nut (3) is located, the inside wall (10) of the deformation piece is located, the conical part (10) extrudes the other end of the deformation sheet (11).

2. The screw-on quick pipe joint according to claim 1, wherein: one end of each deformation sheet (11) is connected through a connecting ring (12).

3. The screw-on quick pipe joint according to claim 2, wherein: an opening is arranged on one side of the connecting ring (12).

4. A quick pipe fitting connection according to claim 2 or 3, wherein: the inner side wall of the clamping claw ring (2) is embedded with a metal embedded ring (14), and the metal clamping piece (8) corresponding to each deformation piece (11) is connected with the metal embedded ring (14).

5. The screw-on quick pipe joint according to claim 1, wherein: the connector is characterized in that two limiting stop rings (6) are oppositely arranged side by side in the middle of the outer side of the connector body (3), a plurality of locking grooves (17) are formed in the outward end faces of the limiting stop rings (6) side by side, locking protrusions (16) are arranged on the inner side end faces of the locking threaded sleeves (1), and the locking protrusions (16) are embedded into any one of the locking grooves (17) when the locking threaded sleeves (1) are screwed to the bottom.