CN214087330U

CN214087330U - Special traction clamp for lining plastic pipeline

Info

Publication number: CN214087330U
Application number: CN202022640356.5U
Authority: CN
Inventors: 陈江慧; 刘跃明; 金崇阳
Original assignee: Linhai Weixing New Building Materials Co Ltd
Current assignee: Linhai Weixing New Building Materials Co Ltd
Priority date: 2020-11-16
Filing date: 2020-11-16
Publication date: 2021-08-31
Anticipated expiration: 2030-11-16

Abstract

The utility model discloses a special traction clamp for lining plastic pipelines, which belongs to the technical field of pipeline traction clamps, and comprises a pull head, an expansion sleeve, a top sleeve and a lifting ring, wherein the pull head, the expansion sleeve, the top sleeve and the lifting ring are matched with a plastic pipe for use; the expansion sleeve is arranged at the conical end part in the plastic pipe and is tightly attached to the conical end part, the pull head is arranged in the plastic pipe and is mutually sleeved and tightly attached to the expansion sleeve, and the top sleeve is sleeved outside the conical end part of the plastic pipe to realize the integral fixation of the plastic pipe and the traction clamp; the middle of the top sleeve is provided with a hole, the hanging ring is connected with the pull head, the steel wire rope is fixed on the hanging ring, the pull head is tensioned, the plastic pipe is expanded on the inner surface of the steel pipe, and the traction clamp is pulled from one end of the steel pipe to the other end of the steel pipe to complete the lining of the plastic pipe. The utility model is suitable for a plastic tubing inside lining of straight tube and return bend, device small, simple structure, economic nature are good, easy operation, effectual.

Description

Special traction clamp for lining plastic pipeline

Technical Field

The utility model belongs to the technical field of the anchor clamps are pull to the pipeline, in particular to dedicated anchor clamps that pull of inside lining plastic conduit.

Background

In order to prolong the service life of the steel pipe, the technology of adding the liner pipe inside the steel pipe is invented, so that the inner wall of the steel pipe is covered by the ultra-high molecular weight polyethylene plastic pipe, and the steel pipe has the functions of wear resistance, scale prevention and the like, thereby prolonging the service life of the whole pipe. When the inside lining, the tip of tight plastic tubing of needs clamp, and then pull the inside effect that reaches the inside lining of advancing the steel pipe, but current pipeline tractor can't be suitable for, can only centre gripping pipeline intermediate position, need press from both sides tight great region moreover, can't be used for the pulling of inside lining plastic tubing.

Patent CN201720292153.7 discloses an expanding sleeve device for clamping a plastic pipe plug, which solves the problem of complicated lock assembly and disassembly of the original steel plug, but the patent needs to rotate a central screw rod to drive a push-pull plate to move forward, a bump on the push-pull plate drives an open-edge top sleeve to approach to the fixed sleeve, the open-edge top sleeve expands radially under the action of a conical surface, so that the open-edge top sleeve is in contact with the inner surface of the plastic pipe and becomes tighter and tighter, and the expanding sleeve device is pushed by rotating the screw rod, has slower efficiency and is not suitable for the bent pipe.

SUMMERY OF THE UTILITY MODEL

Problem to prior art existence, the utility model aims to provide a dedicated anchor clamps that pull of inside lining plastic conduit, its concrete technical scheme as follows.

The special traction clamp for the lining plastic pipeline is matched with a plastic pipe for use, and is characterized by comprising a pull head, an expansion sleeve, a top sleeve and a hanging ring;

the expansion sleeve is arranged at one end part in the plastic pipe, the pull head is arranged in the plastic pipe and is mutually sleeved and tightly attached to the expansion sleeve, the top sleeve is sleeved outside the same end part of the plastic pipe, and the hanging ring penetrates through the top sleeve and is connected with the pull head arranged in the plastic pipe.

The special traction clamp for the lining plastic pipeline is characterized in that the expansion sleeve comprises a head part and two ends of a tail part, the tail part is a circular opening, and the head part is a conical opening.

The special traction clamp for the lining plastic pipeline is characterized in that the pull head is a solid body and comprises a head part and a tail part, the tail part is circular and is sleeved with the circular opening of the expansion sleeve, and the head part is conical and is sleeved with the conical opening of the expansion sleeve.

The special traction clamp for the lining plastic pipeline is characterized in that the expansion sleeve is hollow inside, and the head of the expansion sleeve is cut into a plurality of notches.

The special traction clamp for the lining plastic pipeline is characterized in that one end part of the plastic pipeline is a conical end part formed by cutting a plurality of notches at the end part and shrinking, and the conical end part is tightly attached to the expansion sleeve.

The special traction clamp for the lining plastic pipeline is characterized in that the top sleeve is cylindrical and comprises a head part and a tail part, the head part is provided with a cylindrical hole, the tail part is a conical hole, the interior of the tail part is hollow, the conical end part of the plastic pipe is sleeved with the conical opening, the conical opening is sleeved with the conical end part of the plastic pipe, the conical opening is tightly attached to the conical end part of the plastic pipe, and the plastic pipe is fixed with the pull head and the expansion sleeve.

The special traction clamp for the lining plastic pipeline is characterized in that a bolt is arranged on a hanging ring, and the bolt on the hanging ring penetrates through an opening in the top sleeve to be connected with the pull head.

The special traction clamp for the lining plastic pipeline is characterized in that a threaded hole is drilled in the pull head, and the pull head is matched with a bolt on the hanging ring and used for locking the hanging ring.

The special traction clamp for the plastic pipe with the lining is characterized in that the lifting ring is used for fixing the traction rope to complete the lining of the plastic pipe.

When the traction clamp special for the lining plastic pipeline is used, the steel wire rope is fixed on the lifting ring, the clamp and the plastic pipe are pulled to the interior of the steel pipe through the winch, the lifting ring tightly pulls the pull head, the expansion sleeve expands tightly to enable the plastic pipe to be tightly attached to the inner surface of the steel pipe, and the plastic pipe is pulled from one end of the steel pipe to the other end of the steel pipe, so that the lining of the steel pipe is completed.

After the jointing work of the lining plastic pipe on the inner surface of the steel pipe is finished, the conical end part of the plastic pipe and the traction clamp are cut off together, and then the bolt of the hanging ring is unscrewed, so that the traction clamp can be detached for lining operation of other steel pipes.

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

1) the device after will assembling through the mode of the fixed rings of steel wire pulls, the utility model discloses a device is small, and the flexibility is good during the use, applicable in pulling of return bend bushing pipe, and the suitability is wider.

2) The utility model discloses when the pull head is taut, can expand outward through the cover that expands and realize pressing from both sides tightly to hug closely the plastics bushing pipe inside the steel pipe.

3) The utility model discloses simple structure, easily installation, it is stable moreover, reliable, have stronger use and spreading value.

Drawings

FIG. 1 is an exploded view of a special pulling fixture for plastic-lined pipes;

FIG. 2 is a schematic view of an expansion sleeve of a traction clamp for lining a plastic pipe;

fig. 3 is a sectional view of the assembled pulling jig for the plastic-lined duct.

Detailed Description

The utility model provides a dedicated anchor clamps that pull of inside lining plastic conduit, it has simple structure, simple operation, practicality, practices thrift the characteristics of cost.

In order to further explain the technical means and structure adopted by the main technical problem solved by the present invention, the following description is taken in conjunction with the accompanying drawings to provide the clamp of the present invention with specific embodiments, structures and functions thereof, and the following detailed description is given, but the protection scope of the present invention is not limited thereto:

as shown in fig. 1, the utility model provides a special traction clamp for lining plastic pipes, which comprises a pull head 1, an expansion sleeve 2, a top sleeve 3 and a hanging ring 4, which are connected with a plastic pipe 5 according to the sequence shown in fig. 1, the plastic pipe 5 must be cut into a plurality of triangular gaps with a tool at the end opening so that the end part of the plastic pipe 3 is tightly attached to the expansion sleeve 2, after the gap is cut by the plastic pipe 5, the expansion sleeve 2 is firstly arranged in the end part of the plastic pipe 5 with the triangular gap, a conical head faces to the direction of the gap of the plastic pipe 5, the pull head 1 is also arranged in the plastic pipe 3 and is tightly attached to the expansion sleeve 2, after the pull head 1 and the expansion sleeve 2 are arranged, the end part of the plastic pipe 5 with the triangular gap is tightly attached to the conical end part of the expansion sleeve 2, the top sleeve 3 is sleeved on the conical end part of the plastic pipe 5, thereby fixing the plastic pipe 5 and the traction clamp, then a bolt of the hanging ring 4 is screwed along the screw hole of the pull head 1, and the clamping of the traction clamp is completed. As shown in fig. 2, which is a cross-sectional view of the assembled pulling grip.

The expansion sleeve 2 is hollow inside, and the end part of the expansion sleeve is divided into a plurality of notches by linear cutting, so that when the pull head 1 is tensioned, the expansion sleeve 2 can expand outwards to realize clamping, namely, the pull is tighter and tighter.

When the plastic pipe 5 is lined, the plastic pipe 5 is firstly necked down and then is drawn into the used steel pipe by the drawing fixture, so that the wear resistance and scale resistance of the steel pipe are improved. When the clamp is used, the steel wire rope is fixed on the hanging ring 4, the clamp and the plastic pipe 5 are pulled into the steel pipe through the winch, and the steel pipe is pulled from one end to the other end, so that the lining of the steel pipe is completed. When the hoisting ring 4 is dragged by the winch, the pull head 1 is tensioned, the expansion sleeve 2 expands, and even if the plastic pipe 5 deforms and the wall thickness is reduced in the dragging process, the clamp can stably clamp. Simultaneously, this pull anchor clamps are small, are regarded as pulling by a wire rope, and are applicable in the inside lining of return bend, the utility model discloses an anchor clamps simple structure not only, simple operation are stable, reliable moreover, have stronger use and spreading value.

Claims

1. A traction clamp special for a lining plastic pipeline is matched with a plastic pipe (5) for use, and is characterized by comprising a pull head (1), an expansion sleeve (2), a top sleeve (3) and a hanging ring (4);

the expansion sleeve (2) is arranged at one end part in the plastic pipe (5), the pull head (1) is arranged in the plastic pipe (5) and is mutually sleeved and tightly attached to the expansion sleeve (2), the top sleeve (3) is sleeved outside the same end part of the plastic pipe (5), and the hanging ring (4) penetrates through the top sleeve (3) and is connected with the pull head (1) arranged in the plastic pipe (5).

2. The special traction clamp for the lining plastic pipeline as claimed in claim 1, wherein the expansion sleeve (2) comprises a head part and a tail part, the tail part is a circular opening, and the head part is a conical opening.

3. The special traction clamp for the lining plastic pipeline as claimed in claim 2, wherein the pull head (1) is a solid body and comprises a head part and a tail part, the tail part is circular and is mutually sleeved with the circular opening of the expansion sleeve (2), and the head part is conical and is mutually sleeved with the conical opening of the expansion sleeve (2).

4. The special traction clamp for the lining plastic pipe as claimed in claim 2, wherein the expansion sleeve (2) is hollow inside, and the head part is cut into a plurality of notches.

5. The special traction clamp for the lining plastic pipeline as claimed in claim 4, wherein one end of the plastic pipe (5) is a tapered end which is opened at the end and is cut with a plurality of notches and is shrunk, and the tapered end is tightly attached to the expansion sleeve (2).

6. The special traction clamp for the lining plastic pipe as claimed in claim 5, wherein the top sleeve (3) is cylindrical and comprises a head part and a tail part, the head part is provided with a cylindrical opening, the tail part is provided with a conical opening, the inner part of the tail part is hollow, and the conical openings are sleeved on the conical ends of the plastic pipe (5) and are sleeved and tightly attached to each other.

7. The special traction clamp for the lining plastic pipeline as claimed in claim 6, wherein the hanging ring (4) is provided with a bolt, and the bolt on the hanging ring (4) passes through the opening on the top sleeve (3) to be connected with the pull head (1).

8. The special traction clamp for the lining plastic pipeline as claimed in claim 1, wherein the pull head (1) is provided with a threaded hole for matching with a bolt on the hanging ring (4) for locking the hanging ring (4).

9. The special pulling clamp for the plastic-lined pipe as claimed in claim 1, wherein the lifting ring (4) is used for fixing a pulling rope to complete the lining of the plastic pipe (5).