High-sealing polyvinyl chloride composite pipe

Abstract

The utility model relates to the technical field of polyvinyl chloride composite pipes, in particular to a high-sealing polyvinyl chloride composite pipe which comprises two pipe bodies, inner rings are installed on the inner sides of the sides, close to each other, of the two pipe bodies in a sliding mode, protruding rings are fixedly connected to the outer surfaces of the inner rings, and sealing rings are arranged on the surfaces of the protruding rings in a sleeved mode. The sealing ring is located between the pipe body and the protruding ring, the outer side of the pipe body is slidably sleeved with a mounting ring, and the outer surface of the mounting ring is slidably connected with a limiting ring. By means of the structure, when secondary disassembly and assembly butt joint needs to be conducted on pipes, the screw rod is rotated reversely, the pressing plate loosens the pressing force on the pipe body, then the driving rod is rotated to drive the limiting ring to move in the direction close to the protruding ring, the pull rope is loosened, the inner ring and the protruding ring can slide out of the pipe body easily, and the pipes are separated. And in addition, during secondary butt joint, the high sealing effect can still be achieved through the steps.

Description

TECHNICAL FIELD

[0001] The utility model relates to polyvinyl chloride composite pipe technical field especially relates to a high sealing polyvinyl chloride composite pipe. BACKGROUND

[0002] Polyvinyl chloride composite pipe is with polyvinyl chloride resin as main raw material, adds multiple adjuvants, and is combined with other materials through specific process and is the pipe, combines the characteristics such as PVC corrosion resistance, good chemical resistance, low cost, and the advantages of other reinforcing materials such as fiber, metal etc., like high strength, high toughness, impact resistance is good etc.

[0003] The existing related technology often has the following defects: when the two polyvinyl chloride composite pipes need to be butt jointed, the traditional butt joint mode is to realize butt joint work by using glue joint or hot melt mode, and the two connection modes are not easy for subsequent secondary disassembly and butt joint work between pipes, thereby reducing the sealing effect of the polyvinyl chloride composite pipe after repeated butt joint.

[0004] Therefore, the utility model provides a high sealing polyvinyl chloride composite pipe. UTILITY MODEL CONTENTS

[0005] The utility model discloses a kind of high sealing polyvinyl chloride composite pipes to solve the shortcomings that high sealing effect is not easy to be realized after repeated butt joint between polyvinyl chloride composite pipes in prior art.

[0006] To achieve the above object, the utility model adopts the following technical scheme: a kind of high sealing polyvinyl chloride composite pipe, including two pipe bodies, the inner side of the side of the two pipe bodies each other is slidably installed with inner ring, the outer surface of the inner ring is fixedly connected with convex ring, the surface of the convex ring is sleeved with sealing ring, and the sealing ring is located between pipe body and convex ring.

[0007] The effect reached by the above components is that the sealing ring sleeved on the surface of the convex ring will be in close contact with the inner wall of the pipe body, and initially plays a sealing role.

[0008] Preferably, the outer side of the pipe body is slidably sleeved with a mounting ring, the outer surface of the mounting ring is slidably connected with a limiting ring, a plurality of pull ropes are fixedly connected between the limiting ring and the convex ring, and a plurality of connecting plates are arranged in the circumferential direction on the outer surface of the mounting ring.

[0009] The effect reached by the above components is that the screw rod is rotated, to prevent relative displacement between the pipe body and the mounting ring, and further guarantee the sealing property of the butt joint.

[0010] Preferably, the inner part of the connecting plate is slidably connected with a sliding plate, one end of the sliding plate is fixedly connected with a pressing plate, and the screw rod is rotatably connected with the pressing plate.

[0011] The above-mentioned components achieve the effect that, since the screw rod is rotatably connected with the pressing plate, and the inner part of the connecting plate is slidably connected with the sliding plate, and the sliding plate is fixedly connected with the pressing plate, when the screw rod is rotated, the rotation of the screw rod is converted into the movement of the pressing plate along the radial direction of the pipe body.

[0012] Preferably, the surface of the pressing plate is uniformly fixedly connected with a plurality of sharp protrusions.

[0013] The above-mentioned components achieve the effect that the sharp protrusions on the surface of the pressing plate can increase the friction with the surface of the pipe body.

[0014] Preferably, the surface of the pressing plate is uniformly fixedly connected with a plurality of protrusions.

[0015] The above-mentioned components achieve the effect that the protrusions on the surface of the pressing plate can increase the friction with the surface of the pipe body.

[0016] Preferably, the side wall of the mounting ring is fixedly connected with a positioning block, the inner part of the positioning block is threadedly connected with a driving rod, and the inner part of the driving rod is rotatably connected with the limiting ring.

[0017] The above-mentioned components achieve the effect that, by reversely rotating the screw rod, the pressing plate loosens the pressing force on the pipe body, and then by rotating the driving rod, the limiting ring is driven to move towards the convex ring, and the pull rope is relaxed, so that the inner ring and the convex ring can be easily slid out of the pipe body.

[0018] In summary:

[0019] In the utility model, when it is necessary to disassemble and butt joint the pipe again, the screw rod is reversely rotated, the pressing plate loosens the pressing force on the pipe body, the driving rod is rotated, the limiting ring is driven to move towards the convex ring, the pull rope is relaxed, the inner ring and the convex ring can be easily slid out of the pipe body, the pipe is separated, subsequent butt joint use is facilitated, and high sealing effect can still be achieved when butt jointing again. ACCURACY

[0020] Figure 1 It is a schematic view of the three-dimensional structure of the utility model;

[0021] Figure 2 It is a schematic view of the structure of the convex ring in the utility model;

[0022] Figure 3 It is an enlarged view of A in the utility model; Figure 2

[0023] Figure 4 It is a schematic view of the three-dimensional structure of the utility model;​Figure 2 Enlarged view of B of Fig.

[0024] Legend: 1, pipe body; 2, convex ring; 3, mounting ring; 4, limiting ring; 5, inner ring; 6, sealing ring; 7, pull rope; 8, positioning block; 9, drive rod; 10, connecting plate; 11, sliding plate; 12, screw rod; 13, convex strip; 14, sharp convex; 15, pressing plate. DETAILED DESCRIPTION

[0025] Referring to Figures 1-4 The utility model provides a technical scheme: a kind of high sealing polyvinyl chloride composite pipe, including two pipe bodies 1.

[0026] Now the overall specific setting and effect are specifically described.

[0027] In the embodiment: inner ring 5 is slidably installed on the inner side of the side of the two pipe bodies 1 close to each other, the outer surface of the inner ring 5 is fixedly connected with convex ring 2, the surface of the convex ring 2 is sleeved with sealing ring 6, and the sealing ring 6 is located between the pipe body 1 and the convex ring 2.The sealing ring 6 sleeved on the surface of the convex ring 2 will be in close contact with the inner wall of the pipe body 1, and initially play a sealing role.The outer side of the pipe body 1 is slidably sleeved with mounting ring 3, the outer surface of the mounting ring 3 is slidably connected with limiting ring 4, a plurality of pull ropes 7 are fixedly connected between the limiting ring 4 and the convex ring 2, and the outer surface of the mounting ring 3 is circumferentially arranged with a plurality of connecting plates 10.The inside of the connecting plate 10 is threadedly connected with screw rod 12.Turning screw rod 12 prevents relative displacement between the pipe body 1 and the mounting ring 3, and further guarantees the sealing property of the butt joint.The inside of the connecting plate 10 is slidably connected with sliding plate 11, one end of the sliding plate 11 close to the pipe body 1 is fixedly connected with pressing plate 15, and the inside of the screw rod 12 and the pressing plate 15 is rotatably connected.Because the screw rod 12 is rotatably connected with the pressing plate 15, and the inside of the connecting plate 10 is slidably connected with the sliding plate 11, and the sliding plate 11 is fixedly connected with the pressing plate 15, when the screw rod 12 is rotated, the rotation of the screw rod 12 will be converted into the movement of the pressing plate 15 along the radial direction of the pipe body 1.The surface of the pressing plate 15 is uniformly fixedly connected with a plurality of sharp convexes 14.The sharp convexes 14 on the surface of the pressing plate 15 can increase the friction force with the surface of the pipe body 1.The surface of the pressing plate 15 is uniformly fixedly connected with a plurality of convex strips 13.The convex strips 13 on the surface of the pressing plate 15 can increase the friction force with the surface of the pipe body 1.

[0028] Specifically, the side wall of the mounting ring 3 is fixedly connected with positioning block 8, the inside of the positioning block 8 is threadedly connected with drive rod 9, and the inside of the drive rod 9 and the limiting ring 4 is rotatably connected.Reverse rotation of the screw rod 12 releases the pressing force of the pressing plate 15 on the pipe body 1, and then the drive rod 9 is rotated to drive the limiting ring 4 to move towards the convex ring 2, and the pull rope 7 is relaxed, so that the inner ring 5 and the convex ring 2 can be easily slid out of the pipe body 1.

[0029] The working principle is that when the high sealing PVC composite pipe is installed, the mounting ring 3 is sleeved on the outer side of the pipe body 1, then the two pipe bodies 1 are aligned, the inner ring 5 is slid into the inner side of the side of the two pipe bodies 1 close to each other, the convex ring 2 on the outer surface of the inner ring 5 can be abutted on the end of the pipe body 1, at this time, the sealing ring 6 sleeved on the surface of the convex ring 2 is in close contact with the inner wall of the pipe body 1, and the preliminary sealing effect is achieved, after the position is adjusted, the limiting ring 4 is connected with the convex ring 2 through the pull rope 7, the drive rod 9 in the positioning block 8 is rotated, the drive rod 9 pulls the limiting ring 4, the sealing ring 6 on the convex ring 2 is further slid into the pipe body 1 through the pull rope 7, the sealing ring 6 is subjected to greater extrusion, so that the sealing effect is enhanced, then further fastening operation is carried out by using the screw rod 12 on the connecting plate 10, since the screw rod 12 is rotationally connected with the pressing plate 15, and the sliding plate 11 is slidably connected in the connecting plate 10, and the sliding plate 11 is fixedly connected with the pressing plate 15, when the screw rod 12 is rotated, the rotation of the screw rod 12 is converted into the movement of the pressing plate 15 along the radial direction of the pipe body 1, the sharp convex 14 and the convex strip 13 on the surface of the pressing plate 15 can increase the friction force with the surface of the pipe body 1, so that the pressing plate 15 is more stably pressed against the pipe body 1, the relative displacement between the pipe bodies 1 is prevented, and the sealing property of the butt joint is further ensured, through the above structure, when the pipe is needed to be disassembled and butt-jointed again, the screw rod 12 is reversely rotated, the pressing force of the pressing plate 15 on the pipe body 1 is loosened, the limiting ring 4 is driven to move towards the convex ring 2 by rotating the drive rod 9, and the pull rope 7 is relaxed, so that the inner ring 5 and the convex ring 2 can be easily slid out of the pipe body 1, the pipe is separated, subsequent butt joint use is facilitated, and the high sealing effect can still be achieved through the above steps when butt joint again.

[0030] In the description of the utility model, it is to be explained that, unless there is definite stipulation and limitation, the term "installation", "connection", "connection" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be direct connection, also can be indirectly connected through intermediate medium, can be the intercommunication of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

Claims

1. A high sealed polyvinyl chloride composite pipe comprising two pipe bodies (1), characterized in that: Two said pipe body (1) are close to each other one side inner side sliding installation inner ring (5), the outer surface of the inner ring (5) is fixedly connected with the convex ring (2), the surface of the convex ring (2) is covered with sealing ring (6), the sealing ring (6) is located between pipe body (1) and convex ring (2).

2. A high pressure polyvinyl chloride composite pipe as claimed in claim 1, wherein: The outer side of the pipe body (1) is slidably covered with a mounting ring (3), the outer surface of the mounting ring (3) is slidably connected with a limiting ring (4), a plurality of pull ropes (7) are fixedly connected between the limiting ring (4) and the convex ring (2), the outer surface of the mounting ring (3) is circumferentially arrayed with a plurality of connecting plates (10), the inside of the connecting plate (10) is threadedly connected with a screw rod (12).

3. A high pressure polyvinyl chloride composite pipe as claimed in claim 2, wherein: The inside of the connecting plate (10) is slidably connected with a sliding plate (11), one end of the sliding plate (11) close to the pipe body (1) is fixedly connected with a pressing plate (15), the inside of the screw rod (12) and the pressing plate (15) is rotatably connected.

4. A high pressure polyvinyl chloride composite pipe as claimed in claim 3, wherein: The surface of the pressing plate (15) is uniformly fixedly connected with a plurality of sharp convexes (14).

5. A high pressure polyvinyl chloride composite pipe as claimed in claim 3, wherein: The surface of the pressing plate (15) is uniformly fixedly connected with a plurality of convex strips (13).

6. A high pressure polyvinyl chloride composite pipe as claimed in claim 2, wherein: The side wall of the mounting ring (3) is fixedly connected with a positioning block (8), the inside of the positioning block (8) is threadedly connected with a driving rod (9), the inside of the driving rod (9) and the limiting ring (4) is rotatably connected.

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