CN2221702Y

CN2221702Y - Chucking thermal shrinkage casing

Info

Publication number: CN2221702Y
Application number: CN 95210572
Authority: CN
Inventors: 张学
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-05-11
Filing date: 1995-05-11
Publication date: 1996-03-06
Anticipated expiration: 2005-05-11

Abstract

The utility model relates to a chucking thermal shrinkage casing which is used for various products of field joint coating, corrosion resistance, insulation, sealing, connecting, and plugging in the industrial production. The purposes of the chucking thermal shrinkage casing are that the manufacture technology is simple, the cost is low, the operation is convenient, and the performance is stable. The structure of the chucking thermal shrinkage casing is that a chucking fastening device is arranged on the overlap junction of a port of a cylindrical shaped thermal shrinking sheet, and the fastening device is covered by a hot melt film. The utility model has the advantages that the industrial production can be continuous, the product quality is improved, the production cost is reduced, the field operation is convenient, quick, and reliable, and the field operation efficiency is high.

Description

The seizing type heat-contraction sleeve

The utility model relates to anticorrosion, insulation, sealing, connection, repaired mouth, leak stopping of requirement of engineering such as oil, rock gas, chemical industry, building, communication, electrical equipment manufacturing etc., refers to the seizing type heat-contraction sleeve especially.

In background technique, above-mentioned each industrial field is the on-the-spot repaired mouth crosslinked polyethylene shrink belt (hereinafter to be referred as shrink belt) commonly used of polyethylene jacket anti-corrosion pipeline especially, because the shrink belt joint is open, therefore, the workmen is in operating process, need to control by rule of thumb, and an anticorrosion weak area occurs in two-layer lap-joint with hand.Be head it off, offshore company produces zip mode heat-contraction sleeve and card article formula heat-contraction sleeve, its forming method is slide fastener, card article to be inlayed at the joint pre-shaping notch of band or sheet again, though also solved the above-mentioned deficiency of contraction bands, but material difference, be prone to shortcomings such as stress cracking, complex manufacturing; The product price height, the user is difficult for accepting.The inventor has applied for " lock catch type heat-contraction sleeve " patent on November 5th, 1994, application number is 94244432.9, its structure is at the overlapping joint assembling of tubular shrink belt port securing means, and this securing means comprises snap close and transplants a cutting connection, recessed button of mushroom-like and corresponding recessed button connection form.

The purpose of this utility model is the deficiency that had both overcome in the above-mentioned background technology, on the basis of invention before oneself, make new improvement again, develop a kind of seizing type heat-contraction sleeve, changing its heat-shrinkage material opening ways and improving anticorrosion and insulating property thus, easy to use, cost of production is low, on the basis of high working efficiency, the technology that more simplifies the operation, more convenient in the construction, carry out mass production more at a high speed, efficiently.

Technical solution of the present utility model is as follows:

Thermal contraction slice 4 is characterized in being rolled into tubular thermal contraction slice 4 port overlappings assembling securing means.

Technical solution of the present utility model also comprises:

Assemble a slice hot melt adhesive and the crosslinked PE composite sheet 5 of split type buckle pad 3 and covering successively at the overlapping connection inwall of tubular thermal contraction slice 4 ports; pass with the overlapping corresponding through hole of tubular thermal contraction slice 4 ports and be clasped at protruding place, the end of buckle pad 3, uses construction back the utility model firmly to protect enveloped by the double action of heat shrink and hot melt adhesive.

Assemble a slice hot melt adhesive and the crosslinked PE composite sheet 5 of integral type buckle pad 3 and covering successively at the overlapping connection inwall of tubular thermal contraction slice 4 ports; pass with the overlapping corresponding through hole of tubular thermal contraction slice 4 ports and be clasped at protruding place, the end of buckle pad 3, uses construction back the utility model firmly to protect enveloped by the double action of heat shrink and hot melt adhesive.

At the overlapping connection inwall of tubular thermal contraction slice 4 ports; assembling has the integrated type hot melt adhesive and the crosslinked PE composite sheet 5 of straight forming seizing type pad 3; the protrusion of its seizing type pad 3 passes with thermal contraction slice 4 overlapping corresponding through holes and is clasped, and uses construction back the utility model firmly to protect enveloped by the double action of heat shrink and hot melt adhesive.

Technical solution of the present utility model also has:

Buckle pad 3 ends are protruded and are buckle shape, and the cylinder section is the one side spill.

Buckle pad 3 ends are protruded and are buckle shape, and section protrudes for oval.

Buckle pad 3 ends are protruded and are buckle shape, and section protrudes for circular.

Buckle pad 3 ends are protruded and are buckle shape, and section protrudes and is mushroom-like.

Tubular thermal contraction slice 4 of the present utility model expands into rectangle, and both sides are to there being through hole; When buckle pad 3 was integral type, the sheet that is rectangle when split type, was square or circular, and the buckle of protrusion is arranged thereon.Hot melt adhesive and crosslinked PE composite sheet 5 expand into less rectangular.

Description of drawings of the present utility model is as follows:

Fig. 1 is a shape assumption diagram.

Fig. 2 is an A-A cut-away view among Fig. 1.

Fig. 3 is an integral type buckle pad schematic representation.

Fig. 4 is split type buckle pad stereogram.

Fig. 5 is an integral type buckle pad planimetric map.

Fig. 6 is that section is the oval buckle pad schematic representation of protrusion.

Fig. 7 is that section is the circular buckle pad schematic representation of protrusion.

Fig. 8 is that section is protrusion mushroom-like buckle pad schematic representation.

Above-mentioned number in the figure is described as follows:

1-hot-melt film

2-crosslinked PE sheet

3-buckle pad

4-thermal contraction slice

5-hot melt adhesive and crosslinked PE composite sheet

Following adjoint is described in further detail:

Referring to Fig. 1, the overlapping that is the thermal contraction slice 4 of tubular has circle or ellipse hole, and the crosslinked PE sheet 5 of its tubular overlapping inwall assembling internal layer hot melt adhesive is to hide securing means.Referring to Fig. 2, securing means here is a buckle pad 3, and hot-melt film 1 and crosslinked PE composite sheet 2 are formed hot melt adhesive and crosslinked PE sheet 5, and the thermal contraction slice 4 of tubular is also formed with reason hot-melt film 1 and outer field crosslinked PE sheet 2.After using construction, tubular thermal contraction slice 4 overlappings, buckle pad 3 and one section crosslinked PE sheet 5 hot melt of arc hot melt adhesive are one, make protected object realize purposes such as anticorrosion, insulation, sealing, connection, repaired mouth and leak stopping.Referring to Fig. 3, securing means is an integral type buckle pad 3, and its assembly relation sees that Fig. 2 is described.In addition, this integral type buckle pad 3 can be substituted by the crosslinked PE sheet 5 of hot melt adhesive, is promptly removing buckle pad 3, and straight forming buckle pad 3 on the crosslinked PE sheet 5 of hot melt adhesive is so more saved material, and it is more convenient to construct, and this is characteristics of the present invention.Referring to Fig. 4, this is split type buckle pad 3, and it protrudes the buckle section and simultaneously is spill, pass cylindrical shell thermal contraction slice 4 overlapping through holes, all make things convenient in assembling and the use, this is another characteristics of the present utility model, buckle pad 3 is made by the injection moulding once-through, and material is glue connection PE.Fig. 5 is described, is split type buckle pad 3 plane views.Fig. 6 is that buckle pad 3 protrudes for oval, and Fig. 7 is that buckle pad 3 protrudes for circular.Fig. 8 is that buckle pad 3 protrusions are mushroom-like.These several forms are as the expansion on the basis of the form of Fig. 4.

Advantage of the present utility model and effect are as follows:

1. because the utility model can assemble buckle pad 3 on tubular thermal contraction slice 4 inwalls With the crosslinked PE sheet 5 of PUR that hides or directly assemble one section with the fastener pad of moulding The crosslinked PE composite sheet 5 of the overall thermal melten gel of sheet 3. So overall sealing performance strengthens, and is anticorrosion Successful the more important thing is that cost and construction are simpler and easy.

2. owing to assemble clamping fastener at the tubular thermal contraction slice, i.e. buckle form, But its main characteristics are the big industrial production of serialization, improve the quality of products, and reduce and produce Cost, execute-in-place is convenient, fast, efficient, reliable.

3. reached the purpose of anticorrosion, insulation, sealing, connection, leak stopping and repaired mouth, the worker Do stable performance, applied widely, long service life.

Claims

1. the seizing type heat-contraction sleeve comprises thermal contraction slice (4), is characterized in: can be rolled into tubular thermal contraction slice (4) port overlapping assembling securing means.

2. according to the described seizing type heat-contraction sleeve of claim (1); it is characterized in that: a slice hot melt adhesive and the crosslinked PE composite sheet (5) of assembling split type buckle pad (3) and covering at the overlapping connection inwall of tubular thermal contraction slice (4) port successively; pass with the overlapping corresponding through hole of tubular thermal contraction slice (4) port and be clasped at the protruding place, end of buckle pad (3), uses construction back the utility model firmly to protect enveloped by the double action of heat shrink and hot melt adhesive.

3. according to the described seizing type heat-contraction sleeve of claim (1); it is characterized in that: a slice hot melt adhesive and the crosslinked PE composite sheet (5) of assembling integral type buckle pad (3) and covering at the overlapping connection inwall of tubular thermal contraction slice (4) port successively; pass with the overlapping corresponding through hole of tubular thermal contraction slice (4) port and be clasped at the protruding place, end of buckle pad (3), uses construction back the utility model firmly to protect enveloped by the double action of heat shrink and hot melt adhesive.

4. according to the described seizing type heat-contraction sleeve of claim (1); it is characterized in that: at the overlapping connection inwall of tubular thermal contraction slice (4) port; assembling has the integrated type thermosol and the crosslinked PE composite sheet (5) of straight forming seizing type pad (3); the protrusion of its seizing type pad (3) passes with the overlapping corresponding through hole of thermal contraction slice (4) and is clasped, and uses construction back the utility model firmly to protect enveloped by the double action of heat shrink and hot melt adhesive.

5. according to claim (2) or (3) or (4) described seizing type heat-contraction sleeve, it is characterized in that: buckle pad (3) end is protruded and is buckle shape, and section is the one side spill.

6. according to claim (2) or (3) or (4) described seizing type heat-contraction sleeve, it is characterized in that: buckle pad (3) end is protruded and is buckle shape, and section protrudes for oval.

7. according to claim (2) or (3) or (4) described seizing type heat-contraction sleeve, it is characterized in that: buckle pad (3) end is protruded and is buckle shape, and section protrudes for circular.

8. according to claim (2) or (3) or (4) described seizing type heat-contraction sleeve, it is characterized in that: buckle pad (3) end is protruded and is buckle shape, and section protrudes and is mushroom-like.