CN214405015U

CN214405015U - Quick-insertion type pipe joint assembly

Info

Publication number: CN214405015U
Application number: CN202023284198.0U
Authority: CN
Inventors: 肖波; 柳文阁
Original assignee: Changchun Jiwen Auto Parts Co Ltd
Current assignee: Changchun Jiwen Auto Parts Co Ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-10-15
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses a plug-in pipe joint subassembly soon, its characterized in that: the inserting pipe comprises an inserting pipe and a sleeve, wherein the inserting pipe is provided with an inserting part, a plurality of circumferential grooves are uniformly distributed on the inserting part along the axis direction of the inserting pipe, silica gel sealing rings are arranged in the circumferential grooves, and pre-pressing rings are arranged on the outer sides of the silica gel sealing rings; the outer side of the prepressing ring is provided with radial convex blocks, the radial convex blocks on all the prepressing rings are distributed in a staggered mode in the circumferential direction, the inner wall of the inserting hole of the sleeve is provided with top blocks distributed in a staggered mode in sequence along the axis direction of the inserting hole, the inserting tube is provided with a limiting sleeve, the sleeve body of the limiting sleeve is arranged on the outer side of the inserting portion, the sleeve body of the limiting sleeve is provided with a limiting long groove extending in the axis direction of the inserting tube, and the outer wall of the sleeve is provided with a limiting block clamped into the limiting long groove. The utility model discloses the installation is light laborsaving, and sealed effectual.

Description

Quick-insertion type pipe joint assembly

Technical Field

The utility model belongs to the technical field of the pipe fitting connects, concretely relates to insert formula pipe joint subassembly soon.

Background

A pipe joint is an intermediate part to which liquid lines are connected. The structure and combination form of the present pipe joint are various. The quick-insertion type pipe joint generally comprises an insertion pipe and a sleeve, wherein the insertion pipe and the sleeve are respectively provided with a central through hole, one end of the insertion pipe is connected with a section of pipeline, and the other end of the insertion pipe is an insertion part inserted into the sleeve. One end of the sleeve is connected with a section of pipeline, the other end of the sleeve is an inserting hole for inserting the inserting part, and the inserting hole is a section of the central through hole of the sleeve.

In order to ensure the sealing performance of the insertion pipe and the sleeve, a circumferential sealing groove is generally processed on the insertion part of the insertion pipe, and a sealing ring is sleeved in the sealing groove. When the cannula is connected with the sleeve, the insertion part of the cannula is directly inserted into the sleeve to realize connection. However, the pipe joint of the above structure has the following disadvantages: the sealing ring generates resistance in the process of inserting the cannula into the sleeve, so that the process of inserting the cannula into the sleeve is inconvenient to operate, consumes time and labor. Particularly, when a plurality of seal rings are attached to the insertion portion of the insertion tube, the process of inserting the insertion tube into the sleeve is extremely difficult, and if the number of seal rings is reduced to reduce the resistance, the sealability between the insertion tube and the sleeve cannot be ensured. On the other hand, the sealing ring can break away from the sealing groove due to continuous large axial friction in the process of inserting the cannula into the sleeve, so that sealing failure is caused, and the sealing effect is influenced.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a plug-in pipe joint subassembly soon has the simple and sealed effectual advantage of pegging graft.

In order to achieve the above object, the utility model provides a following technical scheme: a quick-insertion type pipe joint assembly is characterized in that: the inserting pipe comprises an inserting pipe and a sleeve, wherein the inserting pipe is provided with an inserting part which can be inserted into the sleeve, a plurality of circumferential grooves are uniformly distributed on the inserting part along the axis direction of the inserting pipe, silica gel sealing rings are arranged in the circumferential grooves, and pre-pressing rings are arranged on the outer sides of the silica gel sealing rings; the outside of clamping ring in advance is equipped with radial lug, follows all that intubate axis direction sets up radial lug on the clamping ring is crisscross the distribution in proper order on the circumferencial direction, the sleeve pipe has the spliced eye, be equipped with the kicking block that staggers the distribution in proper order along the axis direction of spliced eye on the inner wall of spliced eye, from the ascending kicking block of sleeve pipe spliced eye front end backward extending direction with from the ascending radial lug one-to-one of splicing part rear end forward end extending direction, be equipped with the stop collar on the intubate, the cover body of stop collar is located the splicing part outside, be equipped with the spacing elongated slot that extends along intubate axis direction on the cover body of stop collar, be equipped with the card on the sheathed tube outer wall and go into the stopper in the spacing elongated slot.

Preferably, the cross section of the insertion pipe is a circular pipe body, a central through hole penetrating through two ends of the insertion pipe is formed in the insertion pipe, the cross section of the sleeve pipe is a circular pipe body, and a central through hole penetrating through two ends of the sleeve pipe is formed in the sleeve pipe.

Preferably, the cross section of the silica gel sealing ring is circular.

Preferably, the pre-pressing ring is a stainless steel ring.

Preferably, the radial protrusions on adjacent precompression rings have an included angle of 20 ° in the circumferential direction.

Preferably, the limiting sleeve is welded on the insertion pipe, and the limiting block is welded on the sleeve.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a sealing washer outside is equipped with the pre-compaction ring that is used for compressing tightly the sealing washer, and the pre-compaction ring can avoid the sealing washer to insert sheathed tube in-process and the contact of intraductal wall of sleeve at the intubate to eliminate the frictional force influence of intubate insert sleeve in-process sealing washer, make intubate and sheathed tube grafting light simple swift more. The negative influence of the sealing rings on the insertion process of the insertion tube is eliminated, and the number of the sealing rings can be increased as much as possible, so that the sealing effect between the insertion tube and the sleeve is greatly improved. When the intubate is close to inserting sleeve pipe extreme position, the sleeve pipe can be through the interact of radial lug and kicking block with the top of pre-compaction ring from sealing washer outside position, make the sealing washer seal between intubate outer wall and intraductal wall, it is sealed to realize, because of the axial length of pre-compaction ring is very little, and the minimum smooth material of optional frictional force, so the degree of difficulty that the pre-compaction ring was pushed away from compares with the degree of difficulty that a plurality of sealing washer directness of tradition extruded between intubate and sleeve pipe and pushed into one section distance of utmost point, almost can be invisibly. On the other hand, because the displacement that the pre-compression ring was pushed up from the sealing washer outside is minimum, and the smooth material can independently be chooseed for use to the pre-compression ring, the sealing washer can not break away from out the seal groove because of axial frictional force is too big, guarantees the leakproofness.

Drawings

Fig. 1 is a schematic structural view of the present invention in a state where the middle cannula and the cannula are not completely inserted;

FIG. 2 is an enlarged view of part A of FIG. 1;

FIG. 3 is a schematic structural view of the present invention in a state where the middle cannula is completely inserted into the casing;

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

fig. 5 is a side view of a cannula according to the present invention;

fig. 6 is a side view of the middle sleeve of the present invention.

In the figure: 1. inserting a tube; 1-1, a plug part; 1-2, circumferential grooves; 2. a sleeve; 3. a silica gel seal ring; 4. pre-pressing a ring; 5. a radial projection; 6. a top block; 7. a limiting sleeve; 7-1, a limiting long groove; 8. and a limiting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides the following technical solutions: a quick-insertion type pipe joint assembly. Comprising a cannula 1 and a cannula 2. In this embodiment, the insertion tube 1 is a tube body with a circular cross section, and the insertion tube 1 is provided with a central through hole penetrating through two ends of the insertion tube. The sleeve 2 is a pipe body with a circular ring-shaped cross section, and the sleeve 2 is provided with a central through hole penetrating through two ends of the sleeve. In this embodiment, the cannula 1 and the sleeve 2 are made of copper alloy material.

The cannula 1 has a plug-in part 1-1 which can be inserted into the sleeve 2. In this embodiment, one end of the insertion tube 1 is an insertion part 1-1, and the other end of the insertion tube 1 is provided with a thread for connecting a water pipe.

A plurality of circumferential grooves 1-2 are uniformly distributed on the insertion part 1-1 along the axial direction of the insertion pipe 1. The circumferential groove 1-2 is a sealing groove. In this embodiment, 7 circumferential protrusions are uniformly distributed on the insertion part 1-1 along the axial direction of the insertion tube 1, and the circumferential groove 1-2 is formed by two adjacent circumferential protrusions.

And a silica gel sealing ring 3 is arranged in the circumferential groove 1-2, and the silica gel material is soft and has good resilience. In this embodiment, the cross section of the silica gel sealing ring 3 is circular.

And a pre-pressing ring 4 is installed on the outer side of the silica gel sealing ring 3. After the silica gel sealing ring 3 is sleeved on the circumferential groove 1-2, the diameter of the outer edge of the silica gel sealing ring is larger than that of the inner ring of the pre-pressing ring 4 and larger than that of the inserting hole of the sleeve 2. The inserting hole of the sleeve 2 is a section of the central through hole of the sleeve 2 for inserting the inserting part of the inserting pipe 1. The inner wall of the pre-pressing ring 4 extrudes the silica gel sealing ring 3. The diameter of the outer ring of the pre-pressing ring 4 is smaller than that of the insertion hole of the sleeve 2.

Before the insertion tube 1 is inserted into the sleeve 2, a pre-pressing ring 4 is assembled on the outer side of each silica gel sealing ring 3 arranged on the insertion tube 1. The pre-pressing ring 4 is a stainless steel thin-sheet ring, and the inner ring of the pre-pressing ring is polished. In the process of inserting the cannula 1 into the sleeve 2, because a gap exists between the pre-pressing ring 4 and the inner wall of the sleeve 2, friction force hardly exists between the cannula 1 and the sleeve 2, and the cannula 1 can be easily and quickly inserted into the sleeve 2.

The outer side of the pre-pressing ring 4 is provided with a radial projection 5, and in this embodiment, the radial projection 5 is a stainless steel sheet integrally formed with the pre-pressing ring 4. All the radial lugs 5 on the pre-pressing ring 4 arranged along the axis direction of the insertion pipe 1 are sequentially distributed in a staggered manner along the circumferential direction. That is, after the pre-pressing ring 4 is installed, along the axial direction of the insertion tube 1, the radial protrusions 5 of the pre-pressing ring 4 are sequentially spaced by a certain angle along the circumferential direction using the axis of the insertion tube 1 as the center of circle, in this embodiment, the spaced angle is 20 °. The dimension from the axis of the insertion part 1-1 to the outer edge of the radial projection 5 is smaller than the radius of the insertion hole of the sleeve 2, so that the radial projection 5 can not obstruct the insertion of the insertion tube 1 into the sleeve 2.

And the inner wall of the plug hole is provided with jacking blocks 6 which are distributed in a staggered manner in sequence along the axis direction of the plug hole. In this embodiment, the top block 6 is a tiny metal sheet fixed on the inner wall of the insertion hole of the sleeve 2, and for the convenience of processing, all the top blocks can be welded on the same arc-shaped metal sheet, and then the metal sheet is welded on the inner wall of the insertion hole of the sleeve. The distribution mode of the positions of the top blocks 6 on the inner side of the inserting hole of the sleeve 2 is consistent with that of the radial flanges 5, namely the top blocks are distributed in a staggered mode at 20-degree intervals in sequence along the axis direction by taking the axis as the center of a circle. The axial spacing dimension between two adjacent top blocks 6 is equal to the axial spacing dimension between two adjacent radial projections 5.

The top blocks 6 in the direction extending from the front end of the plug hole of the sleeve 2 to the back end are in one-to-one butt joint with the radial lugs 5 in the direction extending from the back end of the plug part 1-1 to the front end.

The intubation tube 1 is provided with a limiting sleeve 7, the limiting sleeve 7 is provided with a cylindrical sleeve body and an integrated sleeve bottom arranged at one end of the sleeve body, a through hole is processed in the sleeve bottom, the intubation tube is positioned in the through hole, and the sleeve bottom is welded with the outer wall of the intubation tube. The sleeve body of the limiting sleeve 7 is arranged on the outer side of the insertion part, and a circumferential hole groove is formed between the sleeve body of the limiting sleeve 7 and the insertion tube. A limiting long groove 7-1 extending along the axis direction of the cannula 1 is arranged on the sleeve body of the limiting sleeve 7, and a limiting block 8 clamped in the limiting long groove 7-1 is arranged on the outer wall of the sleeve 2. In this embodiment, the stopper is welded to the sleeve. The limiting block 8 interacts with the limiting long groove 7-1 to limit the circumferential relative position of the cannula 1 and the sleeve 2 in the process of inserting the cannula.

Specifically, before the insertion tube 1 is inserted into the sleeve 2, the position of a limiting long groove 7-1 on a limiting sleeve 7 is aligned with a limiting block 8 on the sleeve 2, at this time, the circumferential position of a first radial bump 5 on the insertion tube 1, which is far away from the front end of the insertion part 1-1, is aligned with the circumferential position of a first ejector block 6 in the sleeve 2, which is close to the front end of the insertion hole, and so on, the radial bumps 5 and the ejector blocks 6 are aligned one by one step. The in-process that cannula 1 inserted sleeve pipe 2, there was not any interference between radial protruding 5 pieces that align each other and kicking block 6, cannula 1 inserted sleeve pipe 2's end, radial protruding piece 5 that align each other extrudees with kicking block 6 each other, cannula 1 continues to insert sleeve pipe 2, pre-compaction ring 4 is finally pushed away from 3 outsides of silica gel rubber circle, 3 are enclosed by the release inflation of silica gel rubber, 4 extrusion seal of silica gel rubber circle between sleeve pipe 1 and cannula 2, realize sealing connection. In this embodiment, the distance from the outer edge of the top block 6 to the axis of the sleeve 2 is greater than the radius of the outer annular surface of the pre-pressing ring 4, so that the top block 6 does not interfere with the pre-pressing ring 4 in the process of inserting the insertion tube 1 into the sleeve 2.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A quick-insertion type pipe joint assembly is characterized in that: the inserting tube comprises an inserting tube (1) and a sleeve (2), wherein the inserting tube (1) is provided with an inserting part (1-1) which can be inserted into the sleeve (2), a plurality of circumferential grooves (1-2) are uniformly distributed on the inserting part (1-1) along the axis direction of the inserting tube (1), a silica gel sealing ring (3) is arranged in each circumferential groove (1-2), and a pre-pressing ring (4) is arranged on the outer side of each silica gel sealing ring (3); the outer side of the pre-pressing ring (4) is provided with radial convex blocks (5), all the radial convex blocks (5) on the pre-pressing ring (4) arranged along the axis direction of the insertion pipe (1) are sequentially distributed in a staggered manner in the circumferential direction, the sleeve (2) is provided with an inserting hole, the inner wall of the inserting hole is provided with top blocks (6) which are distributed in a staggered way in sequence along the axial direction of the inserting hole, the top blocks (6) in the direction extending backwards from the front end of the inserting hole of the sleeve are in one-to-one butt joint with the radial convex blocks (5) in the direction extending from the rear end to the front end of the inserting part (1-1), the inserting tube (1) is provided with a limiting sleeve (7), the sleeve body of the limiting sleeve (7) is arranged on the outer side of the inserting part (1-1), a long limiting groove (7-1) extending along the axis direction of the cannula is arranged on the sleeve body of the limiting sleeve (7), and a limiting block (8) clamped into the limiting long groove (7-1) is arranged on the outer wall of the sleeve (2).

2. The quick-insertion type coupling assembly according to claim 1, wherein: the cross section of the insertion pipe (1) is a circular-ring-shaped pipe body, a central through hole penetrating through two ends of the insertion pipe (1) is formed in the insertion pipe (1), the cross section of the sleeve pipe (2) is a circular-ring-shaped pipe body, and a central through hole penetrating through two ends of the sleeve pipe (2) is formed in the sleeve pipe (2).

3. The quick-insertion type coupling assembly according to claim 1, wherein: the cross section of the silica gel sealing ring (3) is circular.

4. The quick-insertion type coupling assembly according to claim 1, wherein: the pre-pressing ring (4) is a stainless steel ring.

5. The quick-insertion type coupling assembly according to claim 1, wherein: and the included angle of the radial convex blocks (5) on the adjacent pre-pressing rings (4) in the circumferential direction is 20 degrees.

6. The quick-insertion type coupling assembly according to claim 1, wherein: the limiting sleeve (7) is welded on the insertion pipe (1), and the limiting block (8) is welded on the sleeve (2).