CN111981223A

CN111981223A - Fluid pipeline connecting device

Info

Publication number: CN111981223A
Application number: CN202010865549.2A
Authority: CN
Inventors: 沈鑫光
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-25
Filing date: 2020-08-25
Publication date: 2020-11-24

Abstract

The invention discloses a fluid pipeline connecting device, which comprises a corrugated pipe, wherein joint components are arranged at two ends of the corrugated pipe; each joint component comprises a joint sleeve and a pressing sleeve, an annular slot is formed in the end face, facing one side of the fluid pipeline, of the joint sleeve, a first sealing ring is embedded between the inner peripheral wall of the annular slot and the inner peripheral wall of the fluid pipeline, and a first locking structure is arranged between the joint sleeve and the fluid pipeline; one end of the corrugated pipe facing the compressing sleeve is inserted into the compressing sleeve, an outward annular bending edge is integrally formed on the end part of the corrugated pipe positioned in the compressing sleeve, a second sealing ring is embedded between the annular bending edge and the joint sleeve, a third sealing ring is embedded between the annular bending edge and the inner bottom of the compressing sleeve, the compressing sleeve is sleeved outside the joint sleeve, and a second locking structure is arranged between the compressing sleeve and the joint sleeve; the invention can bring convenience to the connection of the fluid pipeline at the cut-off position.

Description

Fluid pipeline connecting device

Technical Field

The invention relates to the technical field of pipeline connecting devices, in particular to a fluid pipeline connecting device.

Background

In the building decoration process, the phenomenon that an electric drill bit penetrates through a water pipe embedded in a wall body is often encountered, after the water pipe is penetrated, the water pipe penetrated by the electric drill bit needs to be cut off, and a pipe joint is installed at the cut-off part of the water pipe, at present, the water pipe used by a user in the building decoration process is generally a water pipe made of a PPR material, the water pipe is connected with a pipe joint in a hot-sticking mode, but for the water pipe penetrated by the electric drill bit, after the water pipe is cut off, in order to connect the pipe joint with the water pipes at two ends of the cut-off part, the gap at the cut-off part of the water pipe needs to be smaller than the length of the pipe joint (if the gap at the cut-off part of the water pipe is larger than the length of the pipe joint, the pipe joint cannot be connected with the water pipes at two ends of the cut-off part at all times), because the clearance of water pipe cutting off department is less than the length of coupling, the other end of joint just is difficult to scald with the tip of another water pipe of cutting off department and glues to there is the big shortcoming of the connection degree of difficulty of the water pipe of cutting off department.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the fluid pipeline connecting device, the corrugated pipe in the fluid pipeline connecting device can be stretched, so that the distance between the joint assemblies at the two ends of the corrugated pipe can be changed, the requirement of the distance change of the joint assemblies at the two ends of the corrugated pipe when the joint assemblies are connected with the fluid pipeline at the cut-off part can be met, and convenience can be brought to the connection of the fluid pipeline at the cut-off part.

The fluid pipeline connecting device comprises a telescopic corrugated pipe, wherein joint components used for being connected with the end parts of fluid pipelines on two sides of a cut-off part are arranged at two ends of the corrugated pipe; each joint component comprises a joint sleeve and a pressing sleeve, an annular slot for inserting the end part of the fluid pipeline is arranged on the end surface of one side of the joint sleeve facing the fluid pipeline, the inner peripheral wall of the fluid pipeline is attached to the inner peripheral wall of the annular slot, the outer peripheral wall of the fluid pipeline is attached to the outer peripheral wall of the annular slot, a first sealing ring is embedded between the inner peripheral wall of the annular slot and the inner peripheral wall of the fluid pipeline, and a first locking structure is arranged between the joint sleeve and the fluid pipeline; the one end that the bellows orientation compressed tightly the cover inserts in compressing tightly the cover, and integrated into one piece has outside annular limit of bending on the tip of the bellows that is located inside compressing tightly the cover, and the annular limit of bending inlays between the adapter sleeve and is equipped with the second sealing washer, and the annular limit of bending inlays between the interior bottom that compresses tightly the cover and is equipped with the third sealing washer, compresses tightly the cover suit in the outside of adapter sleeve, compresses tightly and is provided with second locking structure between cover and the adapter sleeve.

The invention relates to a fluid pipeline connecting device, wherein a first locking structure comprises a movable sleeve, the movable sleeve is in threaded connection with the inside of a joint sleeve, a through hole in a regular hexagon shape is formed in the inside of the movable sleeve, an annular convex edge which is used for abutting against the end part of the movable sleeve to prevent the movable sleeve from separating from the joint sleeve is arranged on the inner peripheral wall of one end, facing a fluid pipeline, of the joint sleeve, four ejector rods which are uniformly distributed in the circumferential direction are movably penetrated in the joint sleeve positioned on the inner side of an annular slot, a first annular conical surface is arranged on the outer peripheral wall of one end, facing the annular convex edge, of the movable sleeve, a first inclined surface which is used for being attached to the first annular conical surface is arranged at one end, facing the movable sleeve, of the ejector rods, and the movable sleeve; after the first locking structure is adopted, after the joint sleeve is connected with the fluid pipeline, namely the end part of the fluid pipeline is completely inserted into the annular slot in the joint sleeve, the movable sleeve is screwed through the outer hexagonal wrench, namely the movable sleeve is rotated through the cooperation of the outer hexagonal wrench and the through hole inside the movable sleeve, when the movable sleeve is rotated and moves to one side of the annular convex edge, the ejector rod can be pushed to move outwards under the cooperation effect of the first annular conical surface and the first inclined surface, and after the ejector rod moves outwards, the ejector rod can be abutted against the inner wall of the fluid pipeline, so that the joint sleeve and the fluid pipeline are fastened.

The invention relates to a fluid pipeline connecting device, wherein a plurality of saw teeth are arranged on the outer end part of a mandril; after the sawteeth are arranged at the outer end part of the ejector rod, when the outer end part of the ejector rod is matched and tightly pushed against the inner wall of the fluid pipeline, the friction force between the ejector rod and the inner wall of the fluid pipeline can be improved, and therefore the fastening effect of the joint sleeve and the fluid pipeline can be improved.

The fluid pipeline connecting device comprises a first locking structure, a second locking structure and a locking structure, wherein the first locking structure comprises two sliding ways arranged on the inner wall of one end, facing a joint sleeve, of a pressing sleeve, the two sliding ways are arranged in a bilateral symmetry mode, a sliding block is connected in each sliding way in a sliding mode, a second annular conical surface is arranged on the outer peripheral wall of one end, facing the fluid pipeline, of the joint sleeve, a second inclined surface used for being attached to the second annular conical surface is arranged at one end, facing the joint sleeve, of each sliding way, a bolt used for pushing the sliding block penetrates through the side wall, located at the position of each sliding way, of the pressing sleeve, the bolt is in threaded connection with the; the pressing sleeve is used for pressing the third sealing ring, the annular bending edge and the second sealing ring onto the joint sleeve; after adopting this kind of second locking structure, compressing tightly the outside back of cover suit to the joint sleeve, and when twisting the bolt and make the bolt top push away the slider, the slider can inwards move, and under the mating reaction of second inclined plane and second toroidal cone, the slider can drive and compress tightly the cover and remove towards one side of joint sleeve, so, compress tightly the cover and can compress tightly third sealing washer, annular limit of bending and second sealing washer on the joint sleeve.

The invention relates to a fluid pipeline connecting device, wherein, the upper end surface and the lower end surface of a sliding block are both provided with a sliding chute, and the inner top and the inner bottom of the sliding chute are both provided with a positioning convex rib which is used for matching with the sliding chute at the corresponding position to slide; after the structure is adopted, the sliding block can be reliably connected in the sliding way in a sliding mode, and the sliding block and the sliding way can play a limiting role.

The corrugated pipe in the invention can be stretched, so that the distance between the joint components at the two ends of the corrugated pipe can be changed, and the requirement of changing the distance between the joint components at the two ends of the corrugated pipe when being connected with the fluid pipeline at the cut part can be met, thereby bringing convenience to the connection of the fluid pipeline at the cut part.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

fig. 3 is a right-view structural diagram of the slider.

Detailed Description

In the following description, for purposes of explanation, numerous implementation details are set forth in order to provide a thorough understanding of the various embodiments of the present invention. It should be understood, however, that these implementation details are not to be interpreted as limiting the invention. That is, in some embodiments of the invention, such implementation details are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.

In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The fluid pipeline connecting device comprises a telescopic corrugated pipe 1, wherein joint assemblies used for being connected with the end parts of fluid pipelines 2 on two sides of a cut-off part are arranged at two ends of the corrugated pipe 1; each joint component comprises a joint sleeve 3 and a pressing sleeve 4, an annular slot 31 for inserting the end part of the fluid pipeline 2 is arranged on the end surface of the joint sleeve 3 facing to one side of the fluid pipeline 2, the inner peripheral wall of the fluid pipeline 2 is attached to the inner peripheral wall of the annular slot 31, the outer peripheral wall of the fluid pipeline 2 is attached to the outer peripheral wall of the annular slot 31, a first sealing ring 32 is embedded between the inner peripheral wall of the annular slot 31 and the inner peripheral wall of the fluid pipeline 2, and a first locking structure is arranged between the joint sleeve 3 and the fluid pipeline 2; one end of the corrugated pipe 1 facing the compressing sleeve 4 is inserted into the compressing sleeve 4, an outward annular bending edge 11 is integrally formed on the end portion of the corrugated pipe 1 inside the compressing sleeve 4, a second sealing ring 5 is embedded between the annular bending edge 11 and the joint sleeve 3, a third sealing ring 6 is embedded between the annular bending edge 11 and the inner bottom of the compressing sleeve 4, the compressing sleeve 4 is sleeved outside the joint sleeve 3, and a second locking structure is arranged between the compressing sleeve 4 and the joint sleeve 3.

The first locking structure comprises a moving sleeve 71, the moving sleeve 71 is in threaded connection with the inside of the joint sleeve 3, a through hole 711 in a regular hexagon shape is formed in the moving sleeve 71, an annular convex edge 33 used for abutting against the end of the moving sleeve 71 to prevent the moving sleeve 71 from being separated from the joint sleeve 3 is arranged on the inner peripheral wall of one end, facing the fluid pipeline 2, of the joint sleeve 3, four ejector rods 72 are movably arranged in the joint sleeve 3 on the inner side of the annular slot 31 in a penetrating mode and are uniformly distributed in the circumferential direction, a first annular conical surface 712 is arranged on the outer peripheral wall of one end, facing the annular convex edge 33, of the moving sleeve 71, a first inclined surface 721 used for abutting against the first annular conical surface 712 is arranged at one end, facing the moving sleeve 71, of the ejector rods 72, and the moving sleeve 71 is used for ejecting the ejector rods 72; after the first locking structure is adopted, after the joint sleeve is connected with the fluid pipeline, namely the end part of the fluid pipeline is completely inserted into the annular slot in the joint sleeve, the movable sleeve is screwed through the outer hexagonal wrench, namely the movable sleeve is rotated through the cooperation of the outer hexagonal wrench and the through hole inside the movable sleeve, when the movable sleeve is rotated and moves to one side of the annular convex edge, the ejector rod can be pushed to move outwards under the cooperation effect of the first annular conical surface and the first inclined surface, and after the ejector rod moves outwards, the ejector rod can be abutted against the inner wall of the fluid pipeline, so that the joint sleeve and the fluid pipeline are fastened.

A plurality of saw teeth 722 are arranged on the outer end part of the mandril 72; after the sawteeth are arranged at the outer end part of the ejector rod, when the outer end part of the ejector rod is matched and tightly pushed against the inner wall of the fluid pipeline, the friction force between the ejector rod and the inner wall of the fluid pipeline can be improved, and therefore the fastening effect of the joint sleeve and the fluid pipeline can be improved.

The second locking structure comprises two slide ways 41 arranged on the inner wall of one end, facing the joint sleeve 3, of the pressing sleeve 4, the two slide ways 41 are arranged in bilateral symmetry, a sliding block 81 is connected to each slide way 41 in a sliding mode, a second annular conical surface 34 is arranged on the outer peripheral wall of one end, facing the fluid pipeline 2, of the joint sleeve 3, a second inclined surface 811 used for being attached to the second annular conical surface 34 is arranged at one end, facing the joint sleeve 3, of each slide way 81, a bolt 82 used for pushing the sliding block 81 penetrates through the side wall, located at the position of each slide way 41, of the pressing sleeve 4, the bolt 82 is in threaded connection with the pressing sleeve 4, and the inner end of the bolt 82 abuts against; the pressing sleeve 4 is used for pressing the third sealing ring 6, the annular bending edge 11 and the second sealing ring 5 onto the joint sleeve 3; by adopting the second locking structure, after the pressing sleeve is sleeved outside the joint sleeve, and when the bolt is screwed to push the sliding block, the sliding block can move inwards, and under the matching action of the second inclined surface and the second annular conical surface, the sliding block can drive the pressing sleeve to move towards one side of the joint sleeve, so that the pressing sleeve can press the third sealing ring, the annular bending edge and the second sealing ring onto the joint sleeve; it should be noted that, after the bolt is removed from the slideway, the sliding block can be completely retracted into the slideway, that is, the length of the slideway is greater than that of the sliding block, so that the compressing sleeve can be conveniently sleeved outside the joint sleeve.

The upper end surface and the lower end surface of the sliding block 81 are both provided with a sliding groove 812, and the inner top and the inner bottom of the sliding way 41 are both provided with a positioning convex rib 42 which is used for matching with the sliding groove 812 at the corresponding position to slide; after the structure is adopted, the sliding block can be reliably connected in the sliding way in a sliding mode, and the sliding block and the sliding way can play a limiting role.

When the corrugated pipe is used, the fluid pipeline at the position penetrated by the drill bit of the electric drill is cut off, and then the joint assemblies at the two ends of the corrugated pipe are respectively connected with the end parts of the fluid pipelines at the two sides of the cut-off position; when the joint component is connected with the end part of the fluid pipeline, the pressing sleeve is firstly taken down from the joint sleeve, then the joint sleeve is assembled on the end part of the fluid pipeline, namely, the end part of the fluid pipeline is inserted into the annular slot in the joint sleeve, after the end part of the fluid pipeline is completely inserted into the annular slot in the joint sleeve, the movable sleeve is rotated by an external hexagonal wrench, when the movable sleeve is rotated and moves to one side of the annular convex edge, the ejector rod can be pushed to move outwards under the matching action of the first annular conical surface and the first inclined surface, the ejector rod can be abutted against the inner wall of the fluid pipeline after moving outwards, thus, the joint sleeve and the fluid pipeline are fastened, then the pressing sleeve is sleeved outside the joint sleeve, the bolt is screwed by the wrench, and when the wrench screws the bolt and pushes the bolt to push the slide block, the slide block can move inwards, and under the cooperation of the second inclined plane and the second annular conical surface, the sliding block can drive the pressing sleeve to move towards one side of the joint sleeve, so that the pressing sleeve can press the third sealing ring, the annular bending edge and the second sealing ring onto the joint sleeve, and the connection between the joint assembly and the end part of the fluid pipeline at the cut-off position is realized by adopting the steps.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A fluid conduit coupling device, comprising: the device comprises a telescopic corrugated pipe (1), wherein joint assemblies used for being connected with the end parts of fluid pipelines (2) on two sides of a cut-off part are mounted at two ends of the corrugated pipe (1); each joint component comprises a joint sleeve (3) and a pressing sleeve (4), an annular slot (31) for inserting the end part of the fluid pipeline (2) is formed in the end face of one side, facing the fluid pipeline (2), of the joint sleeve (3), the inner peripheral wall of the fluid pipeline (2) is attached to the inner peripheral wall of the annular slot (31), the outer peripheral wall of the fluid pipeline (2) is attached to the outer peripheral wall of the annular slot (31), a first sealing ring (32) is embedded between the inner peripheral wall of the annular slot (31) and the inner peripheral wall of the fluid pipeline (2), and a first locking structure is arranged between the joint sleeve (3) and the fluid pipeline (2); bellows (1) orientation compresses tightly the one end of cover (4) and inserts in compressing tightly cover (4), and integrated into one piece has outside annular limit (11) of bending on being located the tip of bellows (1) that compresses tightly cover (4) inside, inlay between annular limit (11) of bending and adapter sleeve (3) and be equipped with second sealing washer (5), it is equipped with third sealing washer (6) to inlay between annular limit (11) of bending and the interior bottom that compresses tightly cover (4), compress tightly the outside of cover (4) suit in adapter sleeve (3), it is provided with second locking structure to compress tightly between cover (4) and adapter sleeve (3).

2. The fluid pipeline connecting device as claimed in claim 1, wherein the first locking structure comprises a moving sleeve (71), the moving sleeve (71) is screwed into the joint sleeve (3), a through hole (711) with a regular hexagonal shape is formed in the moving sleeve (71), an inner peripheral wall of one end of the joint sleeve (3) facing the fluid pipeline (2) is provided with an annular convex edge (33) for abutting against an end of the moving sleeve (71) to prevent the moving sleeve (71) from separating from the joint sleeve (3), four ejector rods (72) are movably arranged in the joint sleeve (3) inside the annular slot (31) in a penetrating manner and are uniformly distributed in the circumferential direction, an outer peripheral wall of one end of the moving sleeve (71) facing the annular convex edge (33) is provided with a first annular tapered surface (712), one end of the ejector rod (72) facing the moving sleeve (71) is provided with a first inclined surface (721) for abutting against the first annular tapered surface (712), the moving sleeve (71) is used for pushing the ejector rod (72) so as to enable the ejector rod (72) to be tightly propped against the inner peripheral wall of the fluid pipeline (2).

3. A fluid conduit connection device in accordance with claim 2, characterized in that the outer end of the ram (72) is provided with a number of serrations (722).

4. The fluid pipe connecting device according to claim 1, wherein the second locking structure comprises two sliding ways (41) arranged on the inner wall of the pressing sleeve (4) facing one end of the joint sleeve (3), the two sliding ways (41) are arranged in bilateral symmetry, a sliding block (81) is connected in each sliding way (41) in a sliding manner, a second annular conical surface (34) is arranged on the peripheral wall of one end of the joint sleeve (3) facing the fluid pipeline (2), a second inclined plane (811) used for being attached to the second annular conical surface (34) is arranged at one end, facing the joint sleeve (3), of the sliding block (81), bolts (82) used for pushing the sliding block (81) penetrate through the side wall of the pressing sleeve (4) at the position of each slide way (41), the bolt (82) is in threaded connection with the pressing sleeve (4), and the inner end of the bolt (82) is abutted to the sliding block (81); the pressing sleeve (4) is used for pressing the third sealing ring (6), the annular bending edge (11) and the second sealing ring (5) onto the joint sleeve (3).

5. The fluid pipeline connecting device according to claim 4, wherein the upper end surface and the lower end surface of the sliding block (81) are provided with sliding grooves (812), and the inner top and the inner bottom of the sliding channel (41) are provided with positioning ribs (42) which are used for matching with the sliding grooves (812) in corresponding positions to slide.