CN214146981U

CN214146981U - Quick connector for pipeline

Info

Publication number: CN214146981U
Application number: CN202023069989.1U
Authority: CN
Inventors: 孟松
Original assignee: Xuzhou Fengshou Sprinkling Irrigation Equipment Co ltd
Current assignee: Xuzhou Fengshou Sprinkling Irrigation Equipment Co ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-09-07
Anticipated expiration: 2030-12-18

Abstract

The utility model relates to a connection technical field of pipeline discloses a pipeline quick connector, including first joint, the second connects and elastic sealing element, be equipped with the card on the outer wall of first joint protrudingly, the second connects and is equipped with the draw-in groove and dodges the groove, the draw-in groove extends along the circumference that the second connects, dodge the one end that the groove is located the draw-in groove, it is protruding to be equipped with the location on the inner wall of draw-in groove, the protruding joint of card is when the other end of draw-in groove, elastic sealing element presss from both sides and locates between the one end of first joint and the second connects, the protruding and location of card is protruding during butt, elastic sealing element's elastic deformation volume is first deformation volume, the card is protruding when being located the other end of draw-in groove, elastic sealing element's elastic deformation volume is second deformation volume, second deformation volume is less than first deformation volume. The utility model discloses a maximum water pressure that pipeline quick connector can bear increases than prior art, has reduced the probability that pipeline quick connector damaged, has prolonged pipeline quick connector's life.

Description

Quick connector for pipeline

Technical Field

The utility model relates to a connection technical field of pipeline especially relates to a pipeline quick connector.

Background

Among the prior art, the pipeline is connected through the quick connector of pipeline realization quick sealing mostly between pipeline and the pipeline, and current pipeline quick connector includes first joint, second joint and elastic sealing element, realizes the joint through the jack catch structure between first joint and the second joint, and elastic sealing element presss from both sides and establishes between first joint and the second joint, realizes sealing connection between them, and the biggest water pressure that this kind of pipeline quick connector can bear is less for the jack catch structure often takes place to damage.

SUMMERY OF THE UTILITY MODEL

Based on it, an object of the utility model is to provide a quick connector of pipeline, the biggest water pressure that this quick connector of pipeline can bear increases than prior art, has reduced the probability that quick connector of pipeline damaged, has prolonged quick connector of pipeline's life.

In order to achieve the purpose, the utility model adopts the following technical proposal:

a pipe quick-connect coupling comprising: the outer wall of the first joint is provided with a clamping protrusion; the second connector is provided with a clamping groove and an avoiding groove communicated with the clamping groove, the clamping groove extends along the circumferential direction of the second connector and is arranged corresponding to the clamping protrusion, the avoiding groove is positioned at one end of the clamping groove, a positioning protrusion is arranged on the inner wall of the clamping groove, and the clamping protrusion can sequentially slide through the avoiding groove and the positioning protrusion and is clamped at the other end of the clamping groove; elastic sealing element, fixed the setting is in the second connects, the protruding joint of card is in during the other end of draw-in groove, elastic sealing element presss from both sides and locates the one end of first joint with between the second connects, the card protruding with during the protruding butt of location, elastic sealing element's elasticity deformation volume is first deformation volume, the card protruding being located during the other end of draw-in groove, elastic sealing element's elasticity deformation volume is the second deformation volume, the second deformation volume is less than first deformation volume.

As a preferable scheme of the quick-connection joint for the pipeline, the first deformation amount is gradually reduced along a direction departing from the avoiding groove.

As a preferred scheme of the quick pipe joint, one of the inner wall of the second joint and the elastic sealing element is provided with mounting grooves distributed along the circumferential direction of the second joint, the other one of the inner wall of the second joint and the elastic sealing element is provided with mounting protrusions arranged corresponding to the mounting grooves, and the elastic sealing element is fixedly arranged on the second joint.

As a preferable scheme of the quick pipe connector, the mounting protrusion is arranged on the elastic sealing element, the mounting protrusion comprises a supporting leg, and the supporting leg is in interference fit in the mounting groove.

As a preferred scheme of the quick pipeline connection-peg, an anti-suction bulge is arranged on the outer wall of the first connector, and when the clamping protrusion is clamped at the other end of the clamping groove, the anti-suction bulge is located between the elastic sealing element and the clamping protrusion and is close to the elastic sealing element.

As a preferred scheme of the quick pipe connector, an annular limiting bulge is arranged on the outer wall of the first connector, the end face, close to the clamping bulge, of the annular limiting bulge comprises a first conical surface, the first conical surface gradually extends towards the direction, close to the suction prevention bulge, of the first connector along the direction close to the first connector, and a second conical surface, corresponding to the first conical surface, is arranged on the inner wall of the second connector.

As a preferable scheme of the quick connection and disconnection type pipe joint, a section of the first joint from the first conical surface to one end of the first joint is a first conical pipe, the first conical pipe is provided with the clamping protrusion, a section of the second joint from the second conical surface to the elastic sealing element is a second conical pipe, the second conical pipe is provided with the clamping groove, and the second conical pipe and the first conical pipe are arranged correspondingly.

As a preferred scheme of the quick pipe connector, a reinforcing rib is arranged on the second connector, the reinforcing rib extends along the circumferential direction of the second connector, the avoiding groove is arranged right opposite to the reinforcing rib, and the avoiding groove extends along the axial direction of the second connector.

As a preferred scheme of the quick connecting plug for the pipeline, the center of the clamping protrusion is provided with a weight reduction groove.

As a preferable scheme of the quick pipe connection plug, a first annular connecting bulge is arranged on the inner wall and/or the outer wall of the first joint, and a second annular connecting bulge is arranged on the inner wall and/or the outer wall of the second joint.

The utility model has the advantages that: the utility model discloses a pipeline quick connector, protruding bellied effort to the location of card is first effort when the protruding butt of card and location, and the protruding effort to the second joint of card is the second effort when the protruding joint of card is at the other end of draw-in groove, because second deformation is less than first deformation for the second effort is less than first effort. When the card is protruding to be lifted off from the draw-in groove in, the card is protruding to need pass through the location in proper order protruding with dodge the groove, and the curved surface card is protruding to need great first effort just can dismantle the card is protruding from the draw-in groove in, this kind of structure has reduced the probability that first joint drops from the second connects, compared with prior art, the great prior art increase of maximum water pressure that pipeline quick connector can bear, the joint strength who connects first joint and second promptly increases, the probability that pipeline quick connector damaged has been reduced, the life of pipeline quick connector has been prolonged.

Drawings

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

FIG. 1 is a schematic view of a quick connector for pipes according to an embodiment of the present invention;

FIG. 2 is an exploded view of a quick connector for a pipeline according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a second joint according to a first embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

fig. 5 is an exploded view of a quick connector for pipeline according to a second embodiment of the present invention.

In the figure:

1. a first joint; 11. clamping convex; 110. a weight reduction groove; 12. the anti-suction bulge; 13. an annular limiting bulge; 130. a first conical surface; 14. a first annular connecting projection;

2. a second joint; 201. a card slot; 202. an avoidance groove; 203. a second tapered surface; 204. mounting holes; 21. positioning the projection; 22. reinforcing ribs; 23. a second annular connecting boss;

3. an elastomeric seal; 31. a support leg; 311. a pillar; 312. a tapered portion.

Detailed Description

In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present invention, it is to 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 or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

The embodiment provides a pipeline quick connector, as shown in fig. 1 to 4, the pipeline quick connector includes a first connector 1, a second connector 2 and an elastic sealing element 3, a clamping protrusion 11 is disposed on an outer wall of the first connector 1, a clamping groove 201 and an avoiding groove 202 communicated with the clamping groove 201 are disposed on the second connector 2, the clamping groove 201 extends along a circumferential direction of the second connector 2, the clamping groove 201 is disposed corresponding to the clamping protrusion 11, the avoiding groove 202 is disposed at one end of the clamping groove 201, a positioning protrusion 21 is disposed on an inner wall of the clamping groove 201, the clamping protrusion 11 can sequentially slide over the avoiding groove 202 and the positioning protrusion 21 and is clamped at the other end of the clamping groove 201, the elastic sealing element 3 is fixedly disposed in the second connector 2, when the clamping protrusion 11 is clamped at the other end of the clamping groove 201, the elastic sealing element 3 is clamped between one end of the first connector 1 and the second connector 2 to hermetically connect the first connector 1 and the second connector 2, when the clamping protrusion 11 is abutted against the positioning protrusion 21, the elastic deformation amount of the elastic sealing element 3 is a first deformation amount, at this time, the elastic sealing element 3 is compressed, when the clamping protrusion 11 is located at the other end of the clamping groove 201, the elastic deformation amount of the elastic sealing element 3 is a second deformation amount, at this time, the elastic sealing element 3 is still in a compressed state, and the second deformation amount is smaller than the first deformation amount.

It should be noted that, the positioning protrusion 21 is smoothly connected with the inner wall of the slot 201, and the smooth connection between the positioning protrusion 21 and the inner wall of the slot 201 can ensure that the locking protrusion 11 moves smoothly from the positioning protrusion 21 to the inner wall of the slot 201. The first joint 1 of this embodiment is equipped with three protruding 11 of card, and three protruding 11 of card is equipped with three draw-in groove 201 and the three groove 202 of dodging along the circumference evenly distributed of first joint 1 on the second connects 2, and three protruding 11 of card, three draw-in groove 201 and the three groove 202 of dodging are the one-to-one setting.

The pipeline quick connector that this embodiment provided, when the protruding 11 butt of card and location, the protruding 11 effort of card is first effort to the protruding 21 effort of location, when the protruding 11 joint of card is at the other end of draw-in groove 201, the protruding 11 effort of card is the second effort to the effort that the second connects 2, and the axial distribution that the second connects 2 is followed in the direction of first effort and second effort, because second deformation is less than first deformation for the second effort is less than first effort. When the protruding 11 of card is unloaded from draw-in groove 201, be about to first joint 1 when pulling down from second joint 2, protruding 11 of card need be in proper order through location arch 21 and dodge groove 202, and through the protruding 11 great first effort of curved surface card needs just can with the protruding 11 follow draw-in groove 201 dismantlement of card, this kind of structure has reduced the probability that first joint 1 drops from second joint 2, compared with the prior art, the biggest water pressure that the pipeline quick connector can bear is than the prior art increase, first joint 1 increases with the joint strength of second joint 2 promptly, the probability that the quick connector of pipeline damaged has been reduced, the life of the quick connector of pipeline has been prolonged.

Specifically, the first deformation amount of the present embodiment gradually decreases in a direction away from the avoiding groove 202, and the distance from the card groove 201 to the end of the second connector 2 close thereto is about 4 mm. When the first connector 1 is clamped on the second connector 2, the first deformation of the elastic sealing element 3 is the largest when the clamping protrusion 11 is abutted to the positioning protrusion 21 through the avoiding groove 202, so that the first acting force of the clamping protrusion 11 on the positioning protrusion 21 is the largest, the clamping protrusion 11 slides along the positioning protrusion 21 when the first connector 1 is rotated, and the first acting force of the clamping protrusion 11 on the positioning protrusion 21 is gradually reduced because the first deformation is gradually reduced; when the protruding 11 joint of card was at the other end of draw-in groove 201, the protruding 11 effort of card this moment to second joint 2 was the second effort, and the second effort is less than first effort, and first joint 1 and second joint 2 realize the joint and connect. Fig. 1 shows a state where the locking projection 11 is locked to the other end of the locking groove 201, and the first connector 1 is locked to the second connector 2. In other embodiments, the distance from the clamping groove 201 to the end of the second connector 2 close to the clamping groove is not limited to this limitation of this embodiment, and may be other distances, and specifically, the larger this distance is, the larger the maximum water pressure that can be borne by the quick connector of the pipeline is, which is set according to actual needs.

When the first joint 1 needs to be detached from the second joint 2, the first joint 1 is rotated, the clamping protrusion 11 slides along the positioning protrusion 21, the first acting force of the clamping protrusion 11 on the positioning protrusion 21 is gradually increased, until the clamping protrusion 11 reaches the avoidance groove 202, the clamping protrusion 11 is separated from the positioning protrusion 21, and the first joint 1 is detached from the second joint 2. Therefore, the added curved surface clamping protrusion 11 can reduce the probability that the first joint 1 falls off from the second joint 2 due to non-human factors, and meanwhile, the distance from the axial direction of the second joint 2 to the end part of the second joint 2 close to the axial direction of the clamping groove 201 is large, so that the second joint 2 can bear large acting force when the first joint 1 is connected with the second joint 2, the connecting strength of the first joint 1 and the second joint 2 is increased, the probability of damage of the quick pipeline connection plug is reduced, and the service life of the quick pipeline connection plug is prolonged.

Specifically, the inner wall of the second joint 2 of this embodiment is provided with a mounting groove (not shown in the figure) distributed along the circumferential direction of the second joint, the mounting groove is an annular mounting groove, the elastic sealing element 3 is provided with an annular mounting protrusion (not shown in the figure) corresponding to the annular mounting groove, and the mounting protrusion can be mounted in the mounting groove so as to fix the elastic sealing element 3 on the second joint 2, thereby reducing the probability that the elastic sealing element 3 falls off from the second joint 2 when the first joint 1 is detached from the second joint 2. In other embodiments, an installation protrusion may be disposed on an inner wall of the second joint 2, and an installation groove corresponding to the installation protrusion is disposed on the elastic sealing element 3, and the installation protrusion may be installed in the installation groove to fix the elastic sealing element 3 on the second joint 2.

As shown in fig. 2, the outer wall of the first connector 1 of this embodiment is provided with an anti-suction protrusion 12, and when the locking protrusion 11 is locked at the other end of the locking groove 201, the anti-suction protrusion 12 is located between the elastic sealing element 3 and the locking protrusion 11 and the anti-suction protrusion 12 is disposed near the elastic sealing element 3. Specifically, the number of the suction prevention protrusions 12 of the present embodiment is three, the three suction prevention protrusions 12 are uniformly distributed along the circumferential direction of the first joint 1, and the suction prevention protrusions 12 added can prevent the first joint 1 and the second joint 2 from being sucked and being unable to be detached from each other. Specifically, the thickness of the anti-suction protrusion 12 is smaller, about 0.02mm, that is, when the first joint 1 is connected to the second joint 2, the distance between the first joint 1 and the second joint 2 facing the anti-suction protrusion 12 is about 0.02mm, so that the outside air can enter a chamber formed by the first joint 1 and the second joint 2, and the problem that the first joint 1 and the second joint 2 are difficult to disassemble due to the fact that the pressure in the chamber is lower than the atmospheric pressure is prevented. In other embodiments, the thickness of the anti-suction protrusion 12 may also be other values, and is specifically set according to actual needs.

As shown in fig. 2, the outer wall of the first joint 1 of this embodiment is provided with an annular limiting protrusion 13, an end surface of the annular limiting protrusion 13 close to the clamping protrusion 11 includes a first conical surface 130, the first conical surface 130 gradually extends towards the direction close to the suction preventing protrusion 12 along the direction close to the first joint 1, and as shown in fig. 4, the inner wall of the second joint 2 is provided with a second conical surface 203 corresponding to the first conical surface 130. The first conical surface 130 and the second conical surface 203 which are additionally arranged can play a role in guiding and positioning when the first joint 1 and the second joint 2 are assembled, and can also enable the end parts of the annular limiting bulge 13 and the second joint 2 to be not sharp, so that the phenomenon that an operator is cut is avoided.

The first connector 1 of this embodiment is a first tapered tube from the first tapered surface 130 to one end of the first connector 1, the first tapered tube is provided with the clamping protrusion 11, the second connector 2 is a second tapered tube from the second tapered surface 203 to the elastic sealing member 3, the second tapered tube is provided with the clamping groove 201, the second tapered tube corresponds to the first tapered tube, and the first tapered tube and the second tapered tube facilitate the assembly of the first connector 1 and the second connector 2. Specifically, the outer diameter of the first tapered tube gradually decreases along the direction from the first tapered surface 130 to the end of the first joint 1, and the outer diameter of the second tapered tube gradually decreases along the direction from the second tapered surface 203 to the elastic sealing member 3, and the second tapered tube is sleeved on the outer side of the first tapered tube. The included angle between the outer wall surface of the first conical pipe and the central axis of the first joint 1 is smaller, and the included angle between the outer wall surface of the second conical pipe and the central axis of the second joint 2 is smaller, so long as the effect of facilitating the assembly of the first conical pipe and the second conical pipe is achieved.

As shown in fig. 1 to 3, the second coupling 2 of the present embodiment is provided with the reinforcing rib 22, the reinforcing rib 22 extends along the circumferential direction of the second coupling 2, the avoidance groove 202 is provided opposite to the reinforcing rib 22, and the avoidance groove 202 extends along the axial direction of the second coupling 2. The strengthening rib 22 that adds can increase the joint strength that the second connects 2 to increase the biggest water pressure that the quick connector of pipeline can bear, improve the joint strength that first joint 1 and second connect 2, reduce the probability that the quick connector of pipeline damaged, prolong the life of the quick connector of pipeline.

As shown in fig. 2, the weight-reducing groove 110 is disposed in the center of the snap-fit projection 11 of the present embodiment, and the weight-reducing groove 110 is additionally disposed, so that not only can the material of the quick pipe connector be reduced, and the weight of the quick pipe connector be reduced, but also the solidification of the snap-fit projection 11 can be accelerated when the quick pipe connector is injection-molded.

As shown in fig. 1 and fig. 2, the first joint 1 of this embodiment is provided with a first annular connecting protrusion 14 on the outer wall thereof, the second joint 2 is provided with a second annular connecting protrusion 23 on the outer wall thereof, when the first joint 1 is connected with a pipeline, the pipeline is fixed on the outer wall of the first joint 1 by using iron wires, the first annular connecting protrusion 14 is used for preventing the iron wires from falling off the pipeline, when the second joint 2 is connected with the pipeline, the pipeline is fixed on the outer wall of the second joint 2 by using iron wires, and the second annular connecting protrusion 23 also plays a role in preventing the iron wires from falling off. In other embodiments, a first annular connecting protrusion 14 may also be arranged on the inner wall of the first joint 1, the pipeline is fixedly installed in the first joint 1, and the first annular connecting protrusion 14 plays a role in limiting. And a second annular connecting bulge 23 is arranged on the inner wall of the second joint 2, the pipeline is fixedly arranged in the second joint 2, and the second annular connecting bulge 23 plays a limiting role.

First joint 1 of this embodiment, protruding 11, prevent inhaling protruding 12, protruding 14 integrated into one piece is connected to annular spacing 13 and first annular and is first joint design, the second connects 2, the location is protruding 21, protruding 23 integrated into one piece is connected to strengthening rib 22 and second annular and is the second joint design, first joint design and second joint design can be by plastics injection moulding, can also be formed by the metal casting, the material and the forming process of first joint design and second joint design are not injectd to this embodiment, specifically set up according to actual need.

Example two

The difference between the first embodiment and the second embodiment is that, as shown in fig. 5, the mounting protrusion of the present embodiment is a leg 31, the leg 31 includes a pillar 311 and a tapered portion 312, one end of the pillar 311 is fixedly disposed on the elastic sealing member 3, the other end of the pillar 311 is fixedly connected to the tapered portion 312, and the tapered portion 312 enables the leg 31 to be interference-fitted in the mounting groove. Specifically, the number of the support legs 31 of the present embodiment is one, the support legs 31 extend along the radial direction of the elastic sealing member 3, the second joint 2 is provided with a mounting groove, the mounting groove is a mounting hole 204, the mounting hole 204 extends along the radial direction of the second joint 2, and the support legs 31 are interference-assembled in the mounting hole 204, so that the support legs 31 of the elastic sealing member 3 are fixed on the second joint 2, and the probability that the elastic sealing member 3 falls off from the second joint 2 in the installation and disassembly processes of the first joint 1 and the second joint 2 is reduced. In other embodiments, the number of the supporting legs 31 may also be two, three, or more than three, the number of the mounting grooves on the second joint 2 changes correspondingly with the change of the number of the supporting legs 31, and the number of the supporting legs 31 is specifically set according to actual needs.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. A quick connector for pipes, comprising:

the outer wall of the first joint (1) is provided with a clamping protrusion (11);

the connector comprises a second connector (2), wherein a clamping groove (201) and an avoiding groove (202) communicated with the clamping groove (201) are formed in the second connector (2), the clamping groove (201) extends along the circumferential direction of the second connector (2), the clamping groove (201) and the clamping protrusion (11) are correspondingly arranged, the avoiding groove (202) is located at one end of the clamping groove (201), a positioning protrusion (21) is formed in the inner wall of the clamping groove (201), and the clamping protrusion (11) can sequentially slide through the avoiding groove (202) and the positioning protrusion (21) and is clamped at the other end of the clamping groove (201);

elastic sealing element (3), fixed setting is in the second connects (2), protruding (11) joint of card is in during the other end of draw-in groove (201), elastic sealing element (3) press from both sides and locate the one end of first joint (1) with between second joint (2), protruding (11) of card with during protruding (21) butt of location, the elastic deformation volume of elastic sealing element (3) is first deformation volume, protruding (11) of card is located during the other end of draw-in groove (201), the elastic deformation volume of elastic sealing element (3) is the second deformation volume, the second deformation volume is less than first deformation volume.

2. The pipe quick-connect coupling according to claim 1, wherein the first amount of deformation decreases in a direction away from the avoidance slot (202).

3. The quick pipe connector as claimed in claim 1, wherein one of the inner wall of the second joint (2) and the elastic sealing member (3) is provided with mounting grooves circumferentially distributed along the inner wall, the other one of the inner wall and the elastic sealing member is provided with mounting protrusions corresponding to the mounting grooves, and the elastic sealing member (3) is fixedly arranged on the second joint (2).

4. The pipe quick-connect coupling according to claim 3, wherein the mounting projection is provided on the resilient sealing member (3), the mounting projection comprising a leg (31), the leg (31) being interference fitted in the mounting groove.

5. The quick pipe connector as recited in claim 1, wherein an anti-suction protrusion (12) is provided on an outer wall of the first connector (1), and when the locking protrusion (11) is locked to the other end of the locking groove (201), the anti-suction protrusion (12) is located between the elastic sealing member (3) and the locking protrusion (11) and the anti-suction protrusion (12) is provided close to the elastic sealing member (3).

6. The quick pipe connector as recited in claim 5, wherein an annular limiting protrusion (13) is provided on an outer wall of the first connector (1), an end surface of the annular limiting protrusion (13) close to the clamping protrusion (11) comprises a first conical surface (130), the first conical surface (130) gradually extends towards a direction close to the suction prevention protrusion (12) along a direction close to the first connector (1), and a second conical surface (203) corresponding to the first conical surface (130) is provided on an inner wall of the second connector (2).

7. The pipe quick-connection joint as claimed in claim 6, wherein a section of the first joint (1) from the first tapered surface (130) to one end of the first joint (1) is a first tapered pipe, the first tapered pipe is provided with the clamping protrusion (11), a section of the second joint (2) from the second tapered surface (203) to the elastic sealing member (3) is a second tapered pipe, the second tapered pipe is provided with the clamping groove (201), and the second tapered pipe is arranged corresponding to the first tapered pipe.

8. The quick pipe connector as claimed in claim 1, wherein the second connector (2) is provided with a rib (22), the rib (22) extends along the circumferential direction of the second connector (2), the avoiding groove (202) is disposed opposite to the rib (22), and the avoiding groove (202) extends along the axial direction of the second connector (2).

9. The quick pipe connector as claimed in claim 8, wherein the center of the locking projection (11) is provided with a weight-reducing groove (110).

10. The pipe quick-connect coupling according to claim 1, characterized in that the first coupling (1) is provided with a first annular coupling projection (14) on the inner wall and/or on the outer wall, and the second coupling (2) is provided with a second annular coupling projection (23) on the inner wall and/or on the outer wall.