CN201455632U - Soft-rubber push-pull pipe guiding device - Google Patents

Abstract

The utility model relates to a soft-rubber push-pull pipe guiding device, wherein the right end of a core rod has a conical surface that is connected with a straight rod; the diameter of the straight rod is less than that of the core rod; a boss is arranged at the tail end of the straight rod; the outer wall of the core rod is sheathed and connected with a main body sleeve with a conical front end; and quartering grooves are arranged at the right end of the core rod along the axis, so as to divide the main body sleeve into four parts. The soft-rubber push-pull pipe guiding device has reasonable design and convenient operation; the conical head at the left side of a main body facilitates the guiding and has the performance of fall-off prevention when in pipe retraction; the friction resistance and the elasticity principle of rubber can be fully utilized; and the main body can be opened by inflation by adopting the sliding principle of the conical surface and a cylindrical surface.

Description

The flexible glue push-pull type tube guiding device

Technical field

The utility model is applicable to poling, the replace tubes of all kinds of heat exchangers, especially relates to enterprises such as thermal power plant, steam power plant, petrochemical industry.

Background technology

At present, the poling great majority of heat exchanger are to adopt Brush type, and promptly front end has a seeker, and the rear end is to increase friction for the hairbrush effect.This structure is because friction is big, thereby relatively requires great effort when withdrawing from, and production and processing is also cumbersome in addition.

Summary of the invention

The purpose of this utility model is to overcome the weak point that exists in the above-mentioned technology, and a kind of flexible glue push-pull type tube guiding device is provided.

In order to achieve the above object, the technical solution adopted in the utility model is: have a conical surface to link to each other with straight-bar less than the core bar external diameter at core bar right-hand member position, the straight-bar tail end has boss, the core bar outer wall is socketed with the main body cover that front end is taper, quartering groove is opened along axis in its right-hand member position, and the main body cover is divided into pintongs.

The utility model has the advantages that:

Reasonable in design, easy to operate, main body left side conical nose is convenient to guiding, and has when moving back pipe and prevent the performance that comes off, and makes full use of the frictional resistance and the elastic principle of rubber, adopts the principle distending main body of taper seat and face of cylinder slip.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is that the utility model is worked as core bar schematic diagram when pushing the rubber sleeve distending;

Fig. 3 is the utility model main body nested structure schematic diagram;

Fig. 4 is the A-A cutaway view of Fig. 3;

Fig. 5 is the B-B cutaway view of Fig. 3.

The specific embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

By Fig. 1-Fig. 5 as can be known, the utility model has a conical surface to link to each other with straight-bar less than the core bar external diameter at core bar 1 right-hand member position, the straight-bar tail end has boss, and core bar 1 outer wall is socketed with the main body cover 2 that front end is taper, quartering groove is opened along axis in its right-hand member position, and main body cover 2 is divided into pintongs.

Main body cover 2 is provided with through hole along axis direction, and its middle part has that taper seat is set on a taper seat and the core bar 1 is identical.

The utility model is by core bar 1, main body cover 2, rubber sleeve 3 is formed, wherein core bar 1 and main body cover 2 material is an aluminium. core bar 1 main body of packing into is overlapped 2 endoporus, one group of rubber sleeve 3 is enclosed within main body and overlaps 2 right-hand member outsides, the conical surface that the conical surface on core bar 1 the right and main body are overlapped in 2 endoporus during free state surely closes, as Fig. 1. advance core bar 1 when to the right, make its face of cylinder enter main body and overlap the 2 endoporus conical surfaces, because main body is overlapped 2 right-hand members and is opened four five equilibrium grooves along axis, main body was overlapped 2 generations moving rubber sleeves 3 and was outwards opened this moment, with fully contacted by the poling inwall, as shown in Figure 2, under the effect of elastic force and friction, the skirt device with is connected by poling close firm, guiding pipe penetrates the front end tube sheet easily, central dividing plate, the rear end tube sheet. only need pull back core bar 1 during dismounting, main body cover 2 can reset under the elastic reaction of rubber sleeve 3, easily just can unload the lower draft tube device.

Claims (2)

1. flexible glue push-pull type tube guiding device, comprise core bar, it is characterized in that: have a conical surface to link to each other at core bar (1) right-hand member position with straight-bar less than the core bar external diameter, the straight-bar tail end has boss, core bar (1) outer wall is socketed with the main body cover (2) that front end is taper, quartering groove is opened along axis in its right-hand member position, and main body cover (2) is divided into pintongs.

2. flexible glue push-pull type tube guiding device according to claim 1 is characterized in that: main body cover (2) is provided with through hole along axis direction, and its middle part has that taper seat is set on a taper seat and the core bar (1) is identical.

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