CN215674193U

CN215674193U - Clamping sleeve type connection flared PPH pipe fitting

Info

Publication number: CN215674193U
Application number: CN202122228838.4U
Authority: CN
Inventors: 丁启荣; 丁伟
Original assignee: Jiangsu Tiandiren New Material Co ltd
Current assignee: Jiangsu Tiandiren New Material Co ltd
Priority date: 2021-09-14
Filing date: 2021-09-14
Publication date: 2022-01-28
Anticipated expiration: 2031-09-14

Abstract

The utility model relates to the technical field of connecting pipe fittings, in particular to a ferrule type connecting flared PPH pipe fitting which comprises a first joint and a second joint; the first joint comprises a ferrule type pipe body and a conical guide sleeve, the conical guide sleeve is arranged at the end part of the ferrule type pipe body, and an external thread sleeve is sleeved and fixed on the outer wall of the ferrule type pipe body; the joint strength and the connection stability of the pipe fitting of this structure improve, loosen the cutting ferrule soon, can directly connect the separation with first joint and second to convenient pipe fitting quick assembly disassembly, the pipe fitting is connected through the structure of cutting ferrule formula and flaring formula simultaneously, and its leakproofness improves, improves the practicality of pipe fitting.

Description

Clamping sleeve type connection flared PPH pipe fitting

Technical Field

The utility model relates to the technical field of connecting pipe fittings, in particular to a clamping sleeve type connecting flared PPH pipe fitting.

Background

As is well known, PPH pipes have the advantages of good chemical resistance, wear resistance, high temperature, corrosion resistance, aging resistance, etc., and mainly function to transport fluids at higher temperatures.

PPH pipe fitting is a joint commonly used of connecting PPH pipeline, and it comprises the clamp usually, however the joint strength and the connection stability of this type of pipe fitting are relatively poor, and its dismouting work is comparatively loaded down with trivial details to the leakproofness of pipe fitting is relatively poor.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a ferrule type connection flared PPH pipe fitting.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the clamping sleeve type connection flared PPH pipe fitting comprises a first joint and a second joint;

the first joint comprises a ferrule type pipe body and a conical guide sleeve, the conical guide sleeve is arranged at the end part of the ferrule type pipe body, and an external thread sleeve is sleeved and fixed on the outer wall of the ferrule type pipe body;

the second joint includes the flaring body, the flaring body orientation the tip inner wall of cutting ferrule formula body sets up to the toper, annular spout has been seted up on the flaring body outer wall to be provided with the cutting ferrule in the annular spout, the cutting ferrule with the flaring body rotates to be connected, be provided with the screw thread on the cutting ferrule circumference inner wall.

Furthermore, a sleeve ring is installed on the end part, facing the flared pipe body, of the external thread sleeve, a first sealing ring is installed on the side wall of the end part of the sleeve ring, the cross section of the first sealing ring is right-angled, and a right-angled edge, located on the outer side of the right-angled shape of the first sealing ring, is inclined;

the outer wall of flaring formula body goes up the suit and is fixed with the flange ring, the flange ring orientation install the second sealing washer on the lateral wall of cutting ferrule formula body, the cross-sectional shape of second sealing washer is the stairstepping.

Furthermore, an annular sealing groove is formed in the side wall of the end part of the sleeve ring;

the outer side of the second sealing ring is sleeved with a third sealing ring, the third sealing ring is arranged on the flange ring, and the section of the third sealing ring is Y-shaped.

Furthermore, a fourth sealing ring is mounted on the circumferential inner wall of the clamping sleeve, and the cross section of the fourth sealing ring is trapezoidal.

Furthermore, a plurality of fifth sealing rings are arranged on the conical outer wall of the conical guide sleeve;

and a plurality of second sealing grooves are uniformly formed in the conical inner wall of the flared pipe body.

Furthermore, the outer wall of the external thread sleeve is provided with a locking nut in a threaded sleeve mode.

Further, still include and keep off the ring, keep off the ring and install the one end of keeping away from on the external thread bush the second connects.

Compared with the prior art, the utility model has the beneficial effects that: butt joint the first joint and the second joint, cutting ferrule formula body and flared body butt joint, the toper guide pin bushing inserts in the flared body, and the outer wall of toper guide pin bushing and the toper inner wall contact of flared body, rotate the cutting ferrule, the cutting ferrule is sheathe in at the external screw thread through its internal thread spiral shell, and the cutting ferrule of screwing, can conveniently make toper guide pin bushing and flared body paste tightly, thereby realize the butt joint work of first joint and second joint, the joint strength and the connection stability of the pipe fitting of this structure improve, loosen the cutting ferrule soon, can directly connect first joint and second joint separation, thereby make things convenient for quick assembly disassembly to the pipe fitting, the pipe fitting passes through the cutting ferrule formula and is connected with flared structure simultaneously, its leakproofness improves, the practicality of improvement pipe fitting.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view of the first and second joints of FIG. 1;

FIG. 3 is an enlarged view of a portion A of FIG. 2;

FIG. 4 is an enlarged view of a portion B of FIG. 2;

in the drawings, the reference numbers: 1. a first joint; 2. a second joint; 3. a ferrule type tube body; 4. a conical guide sleeve; 5. an external thread sleeve; 6. a flared tube body; 7. a card sleeve; 8. a collar; 9. a first seal ring; 10. a flange ring; 11. a second seal ring; 12. a first seal groove; 13. a third seal ring; 14. a fourth seal ring; 15. a fifth seal ring; 16. a second seal groove; 17. locking a nut; 18. and (4) a baffle ring.

Detailed Description

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

In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. This embodiment is written in a progressive manner.

As shown in fig. 1 to 4, a ferrule type connection flared PPH pipe fitting of the present invention includes a first joint 1 and a second joint 2;

the first joint 1 comprises a ferrule type pipe body 3 and a conical guide sleeve 4, the conical guide sleeve 4 is installed at the end part of the ferrule type pipe body 3, and an external thread sleeve 5 is fixedly sleeved on the outer wall of the ferrule type pipe body 3;

the second connects 2 including flaring body 6, flaring body 6 orientation the tip inner wall of cutting ferrule formula body 3 sets up to the toper, annular spout has been seted up on flaring body 6 outer wall to be provided with cutting ferrule 7 in the annular spout, cutting ferrule 7 with flaring body 6 rotates and connects, be provided with the screw thread on the 7 circumference inner walls of cutting ferrule.

In this embodiment, connect first joint 1 and second joint 2 butt joint, cutting ferrule formula body 3 and flared body 6 butt joint, toper guide pin bushing 4 inserts flared body 6 in, and the outer wall of toper guide pin bushing 4 and the contact of flared body 6's toper inner wall, rotate cutting ferrule 7, cutting ferrule 7 is on external screw thread cover 5 through its internal thread spiral shell dress, and the cutting ferrule 7 of screwing, can conveniently make toper guide pin bushing 4 and flared body 6 paste tightly, thereby realize the butt joint work of first joint 1 and second joint 2, the joint strength and the connection stability of the pipe fitting of this structure improve, loosen cutting ferrule 7 soon, can directly connect 1 with second joint 2 separation, thereby conveniently connect pipe fitting quick assembly disassembly, the pipe fitting passes through the cutting ferrule formula and is connected with flared structure simultaneously, its leakproofness improves, the practicality of pipe fitting is improved.

As a preference of the above embodiment, a collar 8 is mounted on the end of the external thread sleeve 5 facing the flared tube body 6, a first sealing ring 9 is mounted on the side wall of the end of the collar 8, the cross-sectional shape of the first sealing ring 9 is a right-angled shape, and the right-angled side of the right-angled shape of the first sealing ring 9, which is located at the outer side, is inclined;

the outer wall of flared pipe body 6 is fixed with flange ring 10 in the suit, flange ring 10 orientation install second sealing washer 11 on the lateral wall of cutting ferrule formula body 3, the cross-sectional shape of second sealing washer 11 is the stairstepping.

In this embodiment, when first joint 1 and second connect 2 butt joints, the circumference outer wall of flaring body 6 tip inserts in the

lantern ring

8, and 8 inner walls of lantern rings and 6 outer wall contacts of flaring body, first sealing washer 9 extrusion cover is established in the outside of second sealing washer 11, the right-angle side of tilt up state on first sealing washer 9 extrudees the ladder position on the second sealing washer 11, thereby make the tip of the last tilt-angle side of first sealing washer 9 all paste tightly on the outer wall of flaring body 6 with the circumference inner wall of second sealing washer 11, realize first sealing washer 9 and 11 extrusion sealing work to flaring body 6 with second sealing washer, flange ring 10 can fix a position lantern ring 8 simultaneously, thereby fix a position the position of ferrule formula body 3 and flaring body 6.

As a preference of the above embodiment, an annular seal groove is formed in the side wall of the end of the collar 8;

the outer side of the second sealing ring 11 is sleeved with a third sealing ring 13, the third sealing ring 13 is installed on the flange ring 10, and the cross section of the third sealing ring 13 is Y-shaped.

In this embodiment, when the first joint 1 and the second joint 2 are butted, the outer end of the third seal ring 13 is inserted into the first seal groove 12, and the inner wall of the first seal groove 12 presses the third seal ring 13, so that the third seal ring 13 and the first seal groove 12 seal the space between the collar 8 and the flange ring 10.

Preferably, in the above embodiment, a fourth sealing ring 14 is mounted on a circumferential inner wall of the ferrule 7, and a cross-sectional shape of the fourth sealing ring 14 is a trapezoid.

In this embodiment, when the collar 8 and the flange ring 10 are close to each other and are butted, the circumferential inner wall of the fourth seal ring 14 is in contact with the circumferential outer wall of the flange ring 10 and the circumferential outer wall of the collar 8, and the fourth seal ring 14 seals the gap between the flange ring 10 and the collar 8, so as to improve the sealing property.

As a preference of the above embodiment, a plurality of fifth sealing rings 15 are mounted on the conical outer wall of the conical guide sleeve 4;

and a plurality of second sealing grooves 16 are uniformly formed on the conical inner wall of the flared pipe body 6.

In this embodiment, when the tapered guide sleeve 4 is inserted into the flared tube body 6, the fifth sealing ring 15 moves into the second sealing groove 16, and the inner wall of the second sealing groove 16 extrudes the fifth sealing ring 15, so as to seal the space between the outer wall of the tapered guide sleeve 4 and the tapered inner wall of the flared tube body 6.

Preferably, the external thread sleeve 5 is provided with a locking nut 17 on the outer wall thereof.

In this embodiment, when the cutting ferrule 7 is screwed on the external thread bush 5, the locking nut 17 is rotated to make the locking nut 17 tightly attached to the cutting ferrule 7, so that the locking nut 17 locks the cutting ferrule 7, and the cutting ferrule 7 is prevented from loosening on the external thread bush 5.

Preferably, the above embodiment further comprises a stop ring 18, and the stop ring 18 is mounted on one end of the external thread sleeve 5 far away from the second connector 2.

In this embodiment, the blocking ring 18 is provided to facilitate the blocking and limiting process of the locking nut 17.

The installation mode, the connection mode or the arrangement mode of the ferrule type connection flared PPH pipe fitting are common mechanical modes, and the installation mode, the connection mode or the arrangement mode can be implemented as long as the beneficial effects of the ferrule type connection flared PPH pipe fitting are achieved.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A ferrule type connection flared PPH pipe fitting is characterized by comprising a first joint (1) and a second joint (2);

the first joint (1) comprises a ferrule type pipe body (3) and a conical guide sleeve (4), the conical guide sleeve (4) is installed at the end part of the ferrule type pipe body (3), and an external thread sleeve (5) is sleeved and fixed on the outer wall of the ferrule type pipe body (3);

the second connects (2) including flaring body (6), flaring body (6) orientation the tip inner wall of cutting ferrule formula body (3) sets up to the toper, annular spout has been seted up on flaring body (6) outer wall to be provided with cutting ferrule (7) in the annular spout, cutting ferrule (7) with flaring body (6) rotate and are connected, be provided with the screw thread on cutting ferrule (7) circumference inner wall.

2. The ferrule type connection flared PPH pipe fitting according to claim 1, wherein a ferrule (8) is installed on the end of the external thread bushing (5) facing the flared pipe body (6), a first sealing ring (9) is installed on the side wall of the end of the ferrule (8), the cross-sectional shape of the first sealing ring (9) is a right-angle shape, and the right-angle side of the first sealing ring (9) on the outer side is inclined;

the suit is fixed with flange ring (10) on the outer wall of flaring formula body (6), flange ring (10) orientation install second sealing washer (11) on the lateral wall of cutting ferrule formula body (3), the cross-sectional shape of second sealing washer (11) is the stairstepping.

3. The ferrule type connection flared PPH pipe fitting according to claim 2, wherein an annular seal groove is formed on the sidewall of the end portion of said ferrule (8);

the outer side of the second sealing ring (11) is sleeved with a third sealing ring (13), the third sealing ring (13) is installed on the flange ring (10), and the cross section of the third sealing ring (13) is Y-shaped.

4. A ferrule type connection flared PPH pipe fitting according to claim 3, wherein said ferrule (7) has a fourth sealing ring (14) mounted on the inner circumferential wall thereof, said fourth sealing ring (14) having a trapezoidal cross-sectional shape.

5. A ferrule-type connecting flared PPH pipe according to claim 4, wherein a plurality of fifth sealing rings (15) are mounted on the conical outer wall of the conical guide sleeve (4);

and a plurality of second sealing grooves (16) are uniformly formed on the conical inner wall of the flared pipe body (6).

6. The ferrule type connection flared PPH pipe fitting according to claim 5, wherein the external wall of the external thread sleeve (5) is provided with a locking nut (17) in a threaded manner.

7. A ferrule-type connecting flared PPH pipe according to claim 6, further comprising a baffle ring (18), wherein said baffle ring (18) is mounted on said external threaded sleeve (5) at an end remote from said second fitting (2).