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A plastic pipe expander device

A technology of a pipe expander and a plastic pipe is applied in the field of pipe expanders, which can solve the problems of uneven deformation and similar shapes, and achieve the effects of low manufacturing cost, simple and practical structure, and improved work efficiency.

Active Publication Date: 2021-04-02
NORTHEASTERN UNIV LIAONING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the disadvantages in the prior art that the expanded pipe diameter is similar to the shape of the conical head and the deformation is uneven due to the expansion of the pipe with the cone head, the problem to be solved by the present invention is to provide a plastic pipe expander that can uniformly deform the contact part of the pipe expander. Pipe device

Method used

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  • A plastic pipe expander device
  • A plastic pipe expander device
  • A plastic pipe expander device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as Figure 1~3 As shown, a plastic pipe expander device of the present invention includes a pipe expansion execution unit and a pipe expansion joint, wherein the pipe expansion execution unit has a connecting head 1, an inner cylinder 2, an outer cylinder 4, and two butted semicircular baffles 5 and the wire handle 6, the connector 1 is installed at the bottom of the inner cylinder 2, and the top of the inner cylinder 2 is provided with an internal thread hole; the top of the outer cylinder 4 is connected with two butted semicircular baffles 5 by bolts, and the two butted semicircular baffles The baffle plate 5 is stuck in the groove of the wire handle 6; the bottom end of the outer cylinder 4 is inserted from the top end of the inner cylinder 2; the wire handle 6 penetrates into the outer cylinder 4 through the round hole formed by the two butted semicircular baffle plates 5 and extends to the outer cylinder 4. Threaded rod 11, the externally threaded rod 11 is co...

Embodiment 2

[0046] Such as Figure 4~6 As shown, the pipe expansion actuator in this embodiment has the same structure as that of Embodiment 1, and the difference from Embodiment 1 is that the pipe expansion joint includes an elastic tapered sleeve 8 and a tapered handle 7, and the tapered handle 7 is small The end is inserted into the elastic tapered sleeve 8, and the stud of the tapered handle 7 is fixedly connected with the bolt hole of the connecting head 1 of the pipe expansion actuator.

[0047]The elastic tapered sleeve 8 is a cylindrical step with an inner hole, and a gap is opened from the axial ends of the cylindrical step to the front end of the root of the opposite end to form a staggered multi-lobe structure. The surface of the inner hole of the elastic tapered sleeve 8 is tapered Surface; tapered handle 7 conical plus threaded rod structure.

[0048] In this embodiment, the connecting head 1 and the inner cylinder 2 are connected by bolts, the key 3 is fixed on the inner cy...

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Abstract

The invention discloses a plastic pipe expander device, which includes a pipe expansion execution unit and a pipe expansion joint. The pipe expansion execution unit has a connector, an inner cylinder, an outer cylinder, and two butt-jointed semicircular baffles. plate and wire handle, the connector is installed at the bottom of the inner cylinder, and the top of the inner cylinder is equipped with an internal thread hole; the top of the outer cylinder is connected to two butt semicircular baffles through bolts, and the two butt semicircular baffles are stuck to the wire handle groove; the bottom end of the outer cylinder is inserted from the top of the inner cylinder; the wire shank penetrates into the outer cylinder through the round hole formed by the two butt semicircular baffles and extends into an externally threaded rod, which is connected with the internal thread at the top of the inner cylinder. Threaded hole connection; expansion joint is installed on the connector at the bottom of the inner cylinder. The invention can uniformly deform the pipe at the contact part with the pipe expansion head when the pipe expander expands the pipe. It has a simple structure and low manufacturing cost. It can be operated by a single person, saves manpower and costs, and improves work efficiency.

Description

technical field [0001] The invention relates to a pipe expander, in particular to a plastic pipe expander device. Background technique [0002] The pipe expander is a commonly used tool for plastic pipes when they need to be butted or expanded. When the pipe expander expands the plastic pipe, care should be taken not to crack or scratch the plastic pipe. Therefore, the diameter of the expanded pipe cannot change too much, or the diameter of the pipe will be gradually enlarged after multiple treatments. At present, in the process of pipe expansion, there is a problem that when expanding the pipe, the cone head is used to penetrate into the plastic pipe, causing the enlarged pipe diameter to be similar to the shape of the cone head, and the deformation is uneven, thereby affecting the quality of pipe expansion. Therefore, it is very necessary to design a pipe expander that can uniformly deform the pipe at the contact part with the pipe expander when the pipe expander expands...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C57/04
CPCB29C57/04
Inventor 单泉王传伟陈砚孙晓峰赵跃
Owner NORTHEASTERN UNIV LIAONING