CN218378322U - A repair connecting elements for PVC pipeline - Google Patents

Abstract

The utility model relates to the technical field of pipelines, in particular to a repair connecting component for a PVC pipeline, which comprises a main body pipe fitting, wherein the main body pipe fitting is provided with a first end and a second end, and the first end is provided with a first sealing piece and a first locking piece; first sealing member cover is established in the periphery of pipeline and is located the inside of first end, and first retaining member is equipped with first internal thread, and first internal thread groove degree of depth becomes shallow gradually along its precession direction, first serve be equipped with first internal thread assorted first external screw thread, the second end is equipped with second sealing member and second retaining member, and the second sealing member cover is established on the pipe connector and is located the inside that the second held, second retaining member and second end threaded connection. In the utility model, the pipeline and the first end are sealed by the first sealing element and then locked by the first locking element; the pipe joint is sealed with the second end through the second sealing member, and then is locked through the second locking member, so that the tightness of the connection between the repaired pipeline and the pipe joint is ensured.

Description

A restore connecting elements for PVC pipeline

Technical Field

The utility model relates to the technical field of pipelines, more specifically relates to a restore connecting elements for PVC pipeline.

Background

In daily use, the position where most leakage occurs in the pipeline is generally the joint of the pipe and the pipe joint, the PVC drainage pipe and the pipe joint are fragile, cracking and water leakage can be caused by collision and rolling in the installation process, the pipe and the pipe joint are bonded by glue, the joint of the pipe and the pipe joint is easily subjected to irregular influence of glue quality and installation, even if water is not leaked in early installation, the joint is unreliable due to expansion and contraction caused by long-term cold and hot alternate drainage, ageing and the like of the pipe, the joint needs to be replaced or repaired after water leakage, the damaged or connected water leakage position is mainly cleaned, grinding and roughening are performed, and secondary bonding is performed by using the glue or a repairing sheet. In the method, because the bonding is carried out on the old pipeline, the surface cleaning is not thorough or the surface aging problem of the pipe fitting still influences the bonding, so that the aim of thoroughly solving the problem cannot be achieved; or through replacing damaged pipes or pipe joints, the through hoop (straight-through without a limiting ring on the inner wall) can freely move up and down along the pipeline to realize the connection of new pipes and old pipes.

Chinese patent discloses a portable locking connecting component for a PVC/PP drainage pipeline, which comprises a pipe fitting for connecting a pipe, a rubber sleeve, a contraction locking ring and a contraction locking cover, wherein the end opening of the pipe fitting is sequentially provided with and locked with the rubber sleeve, the contraction locking ring and the contraction locking cover; wherein, the rubber sleeve internal diameter and tubular product external diameter adaptation, pipe fitting port are equipped with and are used for installing the rubber sleeve and the outer big-end-up conical surface to by shrink lock ring and this conical surface cooperation with the rubber sleeve locking spacing, shrink lock lid and pipe fitting outer wall threaded connection and with shrink lock ring and rubber sleeve locking at the pipe fitting port. The disclosed solution has the problem of pipe falling after pipe repair.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome above-mentioned prior art's restoration connecting elements and to have the problem that the pipeline drops after pipeline and coupling are restoreed, provide a restoration connecting elements for PVC pipeline.

In order to solve the technical problem, the utility model adopts the technical scheme that: a rehabilitating connection member for PVC piping, comprising a main body tube having a first end for connecting a pipe to a second end for connecting a pipe joint, the first end provided with a first seal and a first locking member; first sealing member cover is established the periphery of pipeline is located the inside of first end, first retaining member is equipped with first internal thread, first internal thread groove degree of depth becomes shallow along its precession direction gradually, first serve be equipped with first internal thread assorted first external screw thread, the second end is provided with second sealing member and second retaining member, second sealing member cover is established on the pipe connector and is located the inside of second end, the second retaining member with second end threaded connection.

In the technical scheme, when the pipeline repairing device is used, when the pipeline and the pipe joint are damaged and leaked, firstly, a half of space for repairing a connecting component is reserved along the pipe joint bell end, the first locking piece and the main pipe fitting are sleeved in sequence from the end part of the pipeline by the biased pipeline, then, the second locking piece, the pressing piece and the second sealing piece are sleeved in sequence from the end part of the pipe joint, the first sealing piece and the second sealing piece are well positioned, the main pipe fitting is slid to be aligned with the pipeline and the pipe joint, the main pipe fitting is aligned with the pipeline, the pipe fitting is limited with the pipe joint, the second end is locked with the pipe joint positioned in the second end by the second locking piece, the first end is locked with the pipeline positioned in the first end, effective sealing can be formed between the pipe joint and the second end and between the pipeline and the first end, and accordingly PVC pipeline repairing can be achieved. Constantly screwing at first retaining member and serving, because first retaining member is equipped with first internal thread, first internal thread groove degree of depth becomes shallow gradually along its precession direction, first serve be equipped with first internal thread assorted first external screw thread, first retaining member can compress tightly first end on the pipeline firmly, first end compresses tightly first sealing member, has increased the frictional force between first sealing member and pipeline, the first end, further avoids first end and pipeline to take place the problem that breaks away from.

Preferably, the first end provided with the first external thread is further provided with a slotted structure, and the slotted structure is arranged along the axial direction of the main pipe fitting.

Preferably, a first groove is formed in the inner wall of the first end, and the first sealing element is mounted in the first groove.

Preferably, the outer wall surface of the first locking piece is provided with an anti-slip bulge for increasing friction force.

Preferably, the device further comprises a pressing piece; the second end is equipped with first breach, the opening direction of first breach is followed the outer wall slope of main part pipe fitting, compress tightly the piece and install in first breach and with second sealing member butt, the second sealing member is installed on the outer wall of coupling.

Preferably, the first notch has a first wall surface parallel to the end surface of the second end and a second wall surface extending toward the end surface of the second end.

Preferably, a limiting ring for limiting the displacement of the pipeline is arranged on the main pipe fitting close to the second end.

Preferably, a second notch is formed in the end face of the second sealing element so that the second sealing element forms a Y-shaped sealing ring.

Preferably, the second locking piece has an abutting portion that abuts against the pressing piece, the abutting portion being formed on an inner side of the second locking piece.

Preferably, the first end has an inner diameter smaller than an inner diameter of the second end.

Compared with the prior art, the beneficial effects of the utility model are that: in the utility model, the leakage part of the pipeline and the pipe joint is repaired by the repairing connecting component, the pipeline and the first end of the main pipe fitting are sealed by the first sealing element and then locked by the first locking element; the pipe joint is sealed through the second sealing member between the second end of main part pipe fitting, then locks through the second retaining member, has guaranteed the compactness that pipeline and pipe joint after the restoration are connected.

Drawings

FIG. 1 is an exploded view of the inventive rehabilitation connection member for PVC pipes;

FIG. 2 is a perspective view of the utility model of a repair connection member for PVC pipes;

FIG. 3 is a partial structural view of a main pipe fitting in the connecting member for repairing PVC pipes according to the present invention;

FIG. 4 is a schematic structural view of the connection relationship between the main pipe and the pipe in the repairing connection member for PVC pipe according to the present invention;

fig. 5 is a schematic structural diagram of the connection relationship between the main pipe fitting and the pipe joint in the repairing connection member for PVC pipe of the present invention.

In the drawings: 1. a main body tube; 2. a pipeline; 3. a first seal member; 4. a first locking member; 5. a first internal thread; 6. a first external thread; 7. a second seal member; 8. a second locking member; 9. a slotted structure; 10. a first groove; 11. a first end; 12. a second end; 13. anti-skid projections; 14. a compression member; 15. a first notch; 151. a first wall surface; 152. a second wall surface; 16. a limiting ring; 17. an open ring structure; 18. an abutting portion; 19. a pipe joint.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and should not be construed as limiting the present patent.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", "long", "short", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but not for indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore the terms describing the positional relationship in the drawings are only used for illustrative purposes and should not be construed as limitations of the present patent, and specific meanings of the above terms can be understood according to specific situations by those of ordinary skill in the art.

The technical solution of the present invention is further described in detail by the following specific embodiments in combination with the accompanying drawings:

example 1

As shown in fig. 1 to 4, a restoring connection member for PVC piping 2 comprises a main body pipe 1, the main body pipe 1 having a first end 11 for connecting the piping 2 and a second end 12 for connecting a pipe joint 19, the first end 11 being provided with a first sealing member 3 and a first locking member 4; the first sealing element 3 is sleeved on the periphery of the pipeline 2 and is positioned inside the first end 11, the first locking element 4 is provided with a first internal thread 5, the depth of a thread groove of the first internal thread 5 becomes shallow gradually along the screwing direction of the first internal thread, the first end 11 is provided with a first external thread 6 matched with the first internal thread 5, the first end 11 provided with the first external thread 6 is also provided with a slotted structure 9, and the slotted structure 9 is arranged along the axial direction of the main pipe fitting 1; the second end 12 is provided with a second sealing member 7 and a second locking member 8, the second sealing member 7 is sleeved on the pipe joint 19 and is positioned inside the second end 12, and the second locking member 8 is in threaded connection with the second end 12.

In the embodiment, when in use, when the pipe 2 and the pipe joint 19 are damaged and leaked, the pipe is cut along the bell end of the pipe joint 19, a half space for repairing the connecting member is reserved, the first locking member 4 and the main pipe fitting 1 are sequentially sleeved from the end of the pipe 2 by the offset pipe 2, then the second locking member 8 and the second sealing member 7 are sequentially sleeved from the end of the pipe joint 19, the first sealing member 3 and the second sealing member 7 are positioned, the main pipe fitting 1 is slid to be aligned with the pipe 2 and the pipe joint 19, the main pipe fitting 1 and the pipe 2 are aligned, after the main pipe fitting 1 and the pipe joint 19 are limited, the second end 12 and the pipe joint 19 located therein are locked by the second locking member 8, the first locking member 4 locks the first end 11 and the pipe 2 located therein, and effective sealing can be formed between the pipe joint 19 and the second end 12 and between the pipe 2 and the first end 11, so that the repairing of the PVC pipe can be realized. Constantly screwing on first retaining member 4 at first end 11, because first retaining member 4 is equipped with first internal thread 5, the 5 thread groove degree of depth of first internal thread becomes shallow gradually along its precession direction, be equipped with on first end 11 with first internal thread 5 assorted first external screw thread 6, first retaining member 4 can compress tightly first end 11 on pipeline 2 firmly, first end 11 compresses tightly first sealing member 3, first sealing member 3 and pipeline 2 have been increased, the frictional force between the first end 11, further avoid first end 11 and pipeline 2 to take place the problem that breaks away from.

It should be noted that the diameter of the main body pipe fitting 1 is a reducing structure, specifically, the inner diameter of the first end 11 is smaller than that of the second end 12, so as to facilitate inserting the pipeline 2 into the inner diameter of the first end 11; a larger diameter tube fitting 19 may also be inserted into the inner diameter of second end 12. "the first fastening member 4 is provided with the first internal thread 5, and the depth of the thread groove of the first internal thread 5 becomes gradually shallower along the screwing direction" means that, as shown in fig. 4, the depth of the thread groove on the left side of the first fastening member 4 is greater than the depth of the thread groove on the right side thereof, so that in the screwing process of the first fastening member 4, the depth of the subsequently screwed thread groove becomes smaller, and the smaller thread groove tightly presses the first external thread 6 on the first end 11, so that the inner wall surface of the first end 11 can be tightly pressed on the outer wall surface of the pipe 2 by using the depth change of the thread groove. The threaded connection between the second locking member 8 and the second end 12 means that the inner circumferential surface of the second locking member 8 is provided with a second internal thread, the second end 12 is provided with a second external thread, and the second internal thread is in threaded connection with the second external thread. It should also be noted that the pipe joint 19 may be any one of an elbow, a tee, and a straight pipe.

As shown in fig. 1 and 3, a slotted structure 9 is further provided on the first end 11 provided with the first external thread 6, and the slotted structure 9 is arranged along the axial direction of the main body pipe fitting 1. Owing to still be equipped with fluting structure 9 on the first end 11 that is equipped with first external screw thread 6, fluting structure 9 sets up along the axial of main part pipe fitting 1, and when first retaining member 4 screwed on first end 11, deformation was changeed to first end 11, and first end 11 can compress tightly on pipeline 2 global better.

As shown in fig. 3, a first groove 10 is formed on the inner wall of the first end 11, and the first sealing member 3 is installed in the first groove 10. In this embodiment, the first groove 10 is annularly arranged along the inner wall surface of the first end 11, the first sealing element 3 is installed in the first groove 10, the first groove 10 plays a role in positioning for the installation of the first sealing element 3, and the pipeline 2 is inserted into the first end 11, so that the first sealing element 3 can be sleeved on the periphery of the pipeline 2, and the position of the first sealing element 3 at the first end 11 is prevented from being changed. When the first locking member 4 is mounted on the first end 11 to apply a locking force to the first end 11, the first locking member 4 will press the first sealing member 3, so that the first sealing member 3 keeps good contact with the inside of the first end 11 and the pipe 2, and the tightness between the pipe 2 and the first end 11 is ensured. The first seal 3 is an O-ring having a hollow annular structure.

As shown in fig. 1, the first fastening member 4 is provided with an anti-slip protrusion 13 on the outer wall surface thereof for increasing friction. Since the first locking member 4 needs to be screwed on the first end 11 by manual operation, the first locking member is easily wetted during the repair of the pipeline 2, so that the friction force of the outer surface of the first locking member 4 is insufficient, and the first locking member is not favorable for rotation. Through the protection arch that sets up, when rotatory first retaining member 4, can increase first retaining member 4's frictional force, avoid first retaining member 4 to screw the in-process appearance of screwing on first end 11 and skid.

Example 2

As shown in fig. 5, the difference from embodiment 1 is that the prosthetic joint member further includes a pressing piece 14 having a split-ring structure 17; the second end 12 is provided with a first notch 15, the opening direction of the first notch 15 inclines along the outer wall surface of the main body pipe fitting 1, the pressing piece 14 is installed in the first notch 15 and is abutted against the second sealing piece 7, and the second sealing piece 7 is installed on the outer wall surface of the pipe joint 19. In this embodiment, since the inner wall surface of the second end 12 is provided with the first notch 15 along the circumferential direction thereof, when the pipe joint 19 is inserted into the second end 12, and the second sealing member 7 is installed on the outer circumferential surface of the pipe joint 19, at this time, the first notch 15 is located opposite to the second sealing member 7, by installing the pressing member 14 in the first notch 15, the pressing member 14 can abut against the second sealing member 7, when the second locking member 8 is screwed on the second end 12, the second end 12 is under the pressure action of the second locking member 8, the second end 12 presses the pressing member 14, the split ring structure 17 of the pressing member 14 is deformed by the split ring structure 17 when being subjected to radial pressure, and is converted into the circumferential locking force, and is applied to the second sealing member 7, thereby playing a role in sealing connection and generating pressing force on the second sealing member 7, and ensuring the tightness between the second end 12 and the pipe joint 19; meanwhile, the friction force between the pipe joint 19 and the pressing piece 14 can be enhanced, and the problem that the connection between the second end 12 and the pipe joint 19 fails is avoided. It should be noted that, when the second end 12 is subjected to the locking force of the second locking member 8, the peripheral surface of the second end 12 is also pressed against the outer peripheral surface of the pipe joint 19, thereby further enhancing the firmness of the connection between the second end 12 and the pipe joint 19.

The first notch 15 has a first wall 151 and a second wall 152, the first wall 151 is parallel to the end surface of the second end 12, and the second wall 152 extends toward the end surface of the second end 12. When the pressing member 14 is fitted in the first notch 15, the bottom of the pressing member 14 contacts the first wall 151, one side wall of the pressing member 14 abuts against the second sealing member 7, the other side wall of the pressing member 14 contacts the second wall 152, and the pressing member 14 can tightly press the second sealing member 7 against the outer wall of the pipe joint 19 by the pressing force transmitted from the second locking member 8.

Example 3

As shown in fig. 3, the difference from embodiment 2 is that a stopper ring 16 for restricting the displacement of the pipe 2 is provided on the main pipe member 1 near the second end 12. In this embodiment, because the spacing ring 16 is disposed on the inner wall surface of the main pipe fitting 1 close to the second end 12, the main pipe fitting 1 is sleeved on the pipeline 2, so that the main pipe fitting 1 can freely slide on the pipeline 2 to realize actual installation operation, and the spacing ring 16 can be annularly disposed.

Wherein, the terminal surface of second sealing member 7 is equipped with the second breach so that second sealing member 7 forms the Y type sealing washer. In this embodiment, because the second breach has been seted up along its circumference on the terminal surface of second sealing member 7, this incision makes second sealing member 7 form Y type sealing washer, under the pressure effect that compresses tightly piece 14, second sealing member 7 is changeed and is produced deformation, can contact with compressing tightly piece 14, the outer wall of coupling 19 better, guarantee the leakproofness between coupling 19 and the second end 12, also can strengthen the frictional force between coupling 19 and the second end 12, avoid coupling 19 and second end 12 to appear the problem that drops.

As shown in fig. 5, the second locker 8 has an abutting portion 18 that abuts the pressing piece 14, and the abutting portion 18 is formed inside the second locker 8. In this embodiment, when the second locking member 8 is screwed to the second end 12, the abutting portion 18 of the second locking member 8 is gradually moved toward the end surface of the second end 12, and during the movement, the abutting portion 18 abuts against the end surface of the pressing member 14 to apply an axial force to the abutting portion 18, and the pressing member 14 is also subjected to a pressing force from the second end 12, and the pressing force presses the second sealing member 7 to deform.

Wherein the inner diameter of the first end 11 is smaller than the inner diameter of the second end 12. The first end 11 is adapted to be connected to the pipe 2 and the second end 12 is adapted to be connected to the pipe fitting 19. The pipe fitting 19 is typically larger in diameter than the pipe 2. When the first end 11 has a smaller inner diameter than the second end 12, it is better adapted to the existing pipe 2 and pipe fitting 19.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A repair connecting elements for PVC pipeline which characterized in that: comprising a main body tube (1), the main body tube (1) having a first end (11) for connecting a pipe (2) and a second end (12) for connecting a pipe joint (19), the first end (11) being provided with a first sealing member (3) and a first locking member (4); first sealing member (3) cover is established the periphery of pipeline (2) is located the inside of first end (11), first retaining member (4) are equipped with first internal thread (5), first internal thread (5) thread groove degree of depth becomes shallow along its precession direction gradually, be equipped with on first end (11) with first internal thread (5) assorted first external screw thread (6), second end (12) are provided with second sealing member (7) and second retaining member (8), second sealing member (7) cover is established on coupling (19) and is located the inside of second end (12), second retaining member (8) with second end (12) threaded connection.

2. The repaired connecting member for PVC piping according to claim 1, characterized in that: the first end (11) provided with the first external thread (6) is further provided with a slotted structure (9), and the slotted structure (9) is arranged along the axis direction of the main body pipe fitting (1).

3. The repair connection member for PVC pipes according to claim 2, characterized in that: be equipped with first recess (10) on the inner wall of first end (11), first sealing member (3) are installed in first recess (10).

4. The repaired connecting member for PVC piping according to claim 1, characterized in that: and the outer wall surface of the first locking piece (4) is provided with an anti-skid projection (13) for increasing friction force.

5. The repaired connecting member for PVC piping according to claim 1, characterized in that: the pressing piece (14) is provided with a split ring structure (17); the second end (12) is provided with a first notch (15), the opening direction of the first notch (15) is inclined along the outer wall surface of the main pipe fitting (1), the pressing piece (14) is installed in the first notch (15) and abutted against the second sealing piece (7), and the second sealing piece (7) is installed on the outer wall surface of the pipe joint (19).

6. The repaired connecting member for PVC piping according to claim 5, characterized in that: the first recess (15) has a first wall surface (151) and a second wall surface (152), the first wall surface (151) being parallel to the end surface of the second end (12), the second wall surface (152) extending toward the end surface of the second end (12).

7. The repaired connecting member for PVC piping according to claim 5, characterized in that: and a limiting ring (16) for limiting the displacement of the pipeline (2) is arranged on the main pipe fitting (1) close to the second end (12).

8. The repaired connecting member for PVC piping according to claim 7, characterized in that: and a second notch is formed in the end face of the second sealing element (7) so that the second sealing element (7) forms a Y-shaped sealing ring.

9. The repair connection member for PVC piping as claimed in claim 8, wherein: the second locking piece (8) has an abutment portion (18) that abuts against the pressing piece (14), the abutment portion (18) being formed inside the second locking piece (8).

10. A restored connection element for PVC pipes according to any one of claims 1 to 9, characterised in that: the first end (11) has an inner diameter smaller than the inner diameter of the second end (12).

Images