CN212251647U

CN212251647U - Hot-melting inner support tool for large-diameter pipeline

Info

Publication number: CN212251647U
Application number: CN202021232378.1U
Authority: CN
Inventors: 隋玉朋; 曹同慧; 张长杨
Original assignee: China 22MCC Group Corp Ltd
Current assignee: China 22MCC Group Corp Ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2020-12-29
Anticipated expiration: 2030-06-30

Abstract

The utility model provides an instrument in big pipe diameter pipeline hot melt, including support piece, support piece external profile is circular, is equipped with one section opening on the support piece, and the symmetry sets up diagonal brace spare on the inner wall of support piece opening both sides, and two diagonal brace spares are close to and connect flexible regulating part between the open-ended one end, and flexible regulating part includes positive and negative silk sleeve and the screw rod of being connected with positive and negative silk sleeve screw thread respectively at positive and negative silk sleeve both ends. The utility model discloses a support instrument can provide suitable holding power from inside when externally the staple bolt fastens pipeline interface, avoids staple bolt fastening power to be difficult to control and influences the problem of connection quality, has improved the quality of passing through rate of once checking of hot melt connection.

Description

Hot-melting inner support tool for large-diameter pipeline

Technical Field

The utility model relates to a municipal administration, building engineering field particularly, relate to an instrument in big pipe diameter pipeline hot melt for support the pipeline from the pipeline is inside in the construction of pipeline hot melt.

Background

At the present stage, in the pipeline construction of materials such as HDPE (high-density polyethylene) with large pipe diameter (not less than 1000 mm) in the whole municipal engineering, the connection between the pipeline interfaces mainly adopts a mainstream hot melting connection method, and the specific method is that resistance wires are embedded at the pipeline interfaces, and after the pipeline interfaces are connected, the connection is melted at the pipeline interfaces through the heating resistance wires. In the hot melting connection process, an external hoop form is adopted for reinforcement, the fastening force of the hoop is difficult to control, and the connection is unstable easily caused by too small fastening force; however, the fastening force is too large, which may cause the pipe joint to deform during the heating process.

SUMMERY OF THE UTILITY MODEL

To the technical problem, the utility model provides an instrument is supported in big pipe diameter pipeline hot melt for inside the supporting of pipeline in pipeline hot melt work progress, thereby ensure the leakproofness of pipeline interface hot melt, avoid appearing the pipeline seepage because of the interface hot melt leads to.

The utility model adopts the following technical scheme:

the utility model provides a support instrument in big pipe diameter pipeline hot melt, includes support piece, and support piece external profile is circular, is equipped with one section opening on the support piece, and the symmetry sets up diagonal brace spare on the inner wall of support piece opening both sides, and two diagonal brace spare are close to and connect flexible adjusting part between the open-ended one end.

Compare earlier with prior art, the utility model discloses an interior support tool's of big pipe diameter pipeline hot melt advantage lies in: can provide suitable holding power from inside when externally the staple bolt fastens pipeline interface, avoid the staple bolt fastening power to be difficult to control and influence the problem of connection quality, improve the quality of acceptance of once of hot melt connection and pass through the rate.

Furthermore, the supporting piece comprises a back plate supporting piece and a pipe supporting piece, the back plate supporting piece and the pipe supporting piece are respectively of an arc structure with an opening, the inner wall of the back plate supporting piece is superposed with the outer wall of the pipe supporting piece, and the back plate supporting piece is fixed on the outer wall of the pipe supporting piece.

Furthermore, the telescopic adjusting part comprises a positive and negative screw sleeve and a screw rod which is respectively in screw thread connection with the positive and negative screw sleeve at two ends of the positive and negative screw sleeve.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

in the figure: 1-a back plate support; 2-a tube support; 3-diagonal stay member; 4-screw rod; 5-positive and negative thread sleeve.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments. It is to be understood that the following description is only for purposes of clearly illustrating the present invention and is not to be taken in a limiting sense.

Referring to fig. 1, a hot-melt internal support tool for large-diameter pipes is shown. The outermost layer of the support tool is a support with a circular outer contour, made of a back plate support 1 and a tube support 2. The back plate support 1 is obtained by bending a steel plate having a thickness of 2mm and a width of 100mm into a circular shape with a section of an opening. The pipe support 2 is obtained by bending a round bar of diameter phi 25 into a circular shape with a section of opening. The inner wall of the back plate supporting piece 1 is superposed with the outer wall of the pipe supporting piece 2, and the opening radians of the two supporting pieces are the same. The backplate support 1 is welded to the outer wall of the tube support 2 to form an outer support structure. It is also possible to weld together two pipe supports 2 of the same radius with openings side by side to form an external support structure to increase the contact area with the pipe interface to be supported.

The inclined supporting pieces 3 are welded on the inner walls of the two sides of the opening of the pipe supporting piece 2, and the two inclined supporting pieces 3 are symmetrically arranged by taking a straight line formed by the center of the opening and the circle center of the supporting piece as a symmetry axis. The diagonal stay 3 adopts round steel with the diameter phi of 25. Two screw rods 4 with reverse screw threads are fixedly connected between one ends of the two inclined supporting pieces 3 close to the opening, and the positive and negative screw sleeves 5 are connected between the two screw rods 4 matched with the screw threads through the positive and negative screw threads at the two ends of the positive and negative screw sleeves. When the plus-minus screw sleeve 5 is rotated clockwise with respect to the plus screw, the two screws are simultaneously screwed inward, whereas when the plus-minus screw sleeve 5 is rotated counterclockwise with respect to the plus screw, the two screws are simultaneously screwed outward.

The working process of the utility model is as follows:

before putting into the pipeline inside with support instrument in the big pipe diameter pipeline hot melt, at first rotate positive and negative silk sleeve 5 through appurtenance, make the screw rod 4 at both ends inwards screw in simultaneously, drive two diagonal brace spare and inwards contract to make the support piece radius reduce, can with the utility model discloses an interface position that the pipeline needs hot melt to be connected is laid to the mouth of pipe that support instrument passes through the pipeline in the big pipe diameter pipeline hot melt. And then, the positive and negative wire sleeves 5 are rotated reversely, so that the screw rods 4 at the two ends are simultaneously screwed out, the two inclined supporting pieces 3 are driven to expand outwards, the radius of each supporting piece is increased until the large-diameter pipeline hot-melting inner supporting tool can apply enough supporting force at a hot-melting position. The width of the back plate supporting piece 1 is wide, the contact area of the back plate supporting piece and the pipeline interface is increased, and the force application range is enlarged. Treat that pipeline hot melt finishes, make through adjusting the utility model discloses a supporting tool removes other positions and continues to support, shifts out the pipeline after finishing using.

Use the utility model discloses a during support instrument in the big pipe diameter pipeline hot melt, in staple bolt fastening process, not only can avoid causing the pipeline to warp in the improper fastening process of exerting oneself, can also avoid the fastening power undersize to cause the insecure quality problem of connection simultaneously, improved the once quality of acceptance of hot melt connection and passed through the rate.

The above description is only the preferred embodiment of the present invention. Various modifications and equivalent changes may be made by those skilled in the art without departing from the spirit and scope of the present invention, and such modifications and changes are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a support instrument in big pipe diameter pipeline hot melt, includes support piece, its characterized in that, support piece external profile is circular, is equipped with one section opening on the support piece, and the symmetry sets up diagonal brace spare on the inner wall of support piece opening both sides, and two diagonal brace spares are close to and connect flexible regulating part between the open-ended one end.

2. The hot-melt internal support tool for large-diameter pipelines according to claim 1, wherein the support member comprises a back plate support member and a pipe support member, the back plate support member and the pipe support member are respectively of an arc structure with an opening, the inner wall of the back plate support member and the outer wall of the pipe support member are overlapped, and the back plate support member is fixed on the outer wall of the pipe support member.

3. The hot-melt internal support tool for large-diameter pipelines according to claim 1, wherein the telescopic adjusting piece comprises a positive-negative thread sleeve and a screw rod which is in threaded connection with the positive-negative thread sleeve at two ends of the positive-negative thread sleeve respectively.