CN202868124U - Semi-round metal tube-shaped opening nail-head framework used for corrugated tube - Google Patents
Semi-round metal tube-shaped opening nail-head framework used for corrugated tube Download PDFInfo
- Publication number
- CN202868124U CN202868124U CN 201220005994 CN201220005994U CN202868124U CN 202868124 U CN202868124 U CN 202868124U CN 201220005994 CN201220005994 CN 201220005994 CN 201220005994 U CN201220005994 U CN 201220005994U CN 202868124 U CN202868124 U CN 202868124U
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- round metal
- metal tube
- tube
- shaped
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Abstract
The utility model relates to a semi-round metal tube-shaped opening nail-head framework used for a corrugated tube, and the semi-round metal tube-shaped opening nail-head framework can not only effectively enhance the strength of the large-aperture corrugated tube but also enable the elasticity of the large-aperture corrugated tube to be radically improved. The semi-round metal tube-shaped opening nail-head framework comprises a corrugated tube framework which is in a semi-round metal tube-shaped framework; through holes are formed along the length in the center of the bottom surface of the semi-round metal tube-shaped framework; and a plurality of inner horn-shaped holes are formed in the semi-round metal tube surface of the semi-round metal tube-shaped framework. The semi-round metal tube-shaped opening nail-head framework has the advantages as follows: firstly, the bottom surface of the semi-round metal tube-shaped framework is in surface contact with the surface of an inner tube, so that when the semi-round metal tube-shaped framework is stressed, the pressure on the inner tube is greatly reduced, the semi-round metal tube-shaped framework is like an arched bridge structure, the bearing capacity is large, the supporting strength and the pressure bearing capability of the inner tube are greatly improved, and the corrugated tube is guaranteed to be not layered when in use; and secondly, the inner horn-shaped holes are formed in the surface of the semi-round metal tube-shaped framework, and plastic layers on the surface of the semi-round metal tube-shaped framework are filled into the inner horn-shaped holes in the surface of the semi-round metal tube-shaped framework to form plastic rivet caps when the plastic layers are fused and compounded, so that the corrugated tube is guaranteed to be not layered when in use.
Description
Technical field
The utility model relates to a kind of heavy caliber bellows that can not only effectively improve to be strengthened, and can make the elasticity of heavy caliber bellows obtain a kind of semicircle metal tubular openings ailhead skeleton for bellows that essence improves, and belongs to the bellows skeleton and makes the field.
Background technique
CN201078525Y, title " steel strip enhancement polythene helical bellows of spigot-and-socket electric melting connecting type ", it is used for solving the problem of the easy seepage of steel band reinforced polyethylene spiral ripple pipe connection interface and poor reliability.Steel strip enhancement polythene helical bellows of spigot-and-socket electric melting connecting type, with outer layer polyethylene the metal frame that twines to be fixed on the inner layer polyethylene, particularly an end of bellows is provided with socket, and the other end of bellows is provided with bellmouth, imbeds a circle electric heating element on the bellmouth inwall and forms.Adopt this steel strip enhancement polythene helical bellows of spigot-and-socket electric melting connecting type, can be widely used in the connection construction of plastic tube.Its deficiency: the one, metal frame is the outer structure of taking off, what form with inner layer polyethylene is that the line face contacts, rather than face contact, not only plyability is poor, and under the effect of external force, metal frame is easily outer takes off movement, causes inner layer polyethylene is destroyed, the quality of direct shadow pipe matter, even cause inner layer polyethylene damaged; The 2nd, support strength is low, because metal frame is the outer structure of taking off, its metal frame both sides of external pressure are outwards mobile, not only cause the layering of metal frame and inner layer polyethylene, and cause the direct reduction of inner layer polyethylene intensity.
Summary of the invention
Purpose of design: avoid the deficiency in the background technique, design a kind of heavy caliber bellows that can not only effectively improve and strengthen, and can make the elasticity of heavy caliber bellows obtain a kind of semicircle metal tubular openings ailhead skeleton for bellows that essence improves.
Design proposal: in order to realize above-mentioned purpose of design.1, the metal tube cross section is the design of the tubular skeleton of semicircle metal, is one of technical characteristics of the present utility model.The purpose of doing like this is: because the tubular skeleton of semicircle metal bottom surface opening is to open along semicircle metal pipe range, be that suitable long through-hole, both sides are the support edge in the middle of the formed pipe bottom surface, when semicircle metal tube skeleton and inner tube compound tense, enter along cooperating in the long through-hole and with suitable long through-hole formation clamping for the molten plastic of making on the inner tubal wall, both played the effect of restriction support edge displacement, play again the effect of the tubular skeleton of riveted joint semicircle metal, played again the effect of strengthening inner tube intensity simultaneously; Secondly, the tubular skeleton of semicircle metal because the tubular skeleton of semicircle metal is neither outwards taken off and moved, can not move to inside contracting when being subject to the external force extruding yet, has guaranteed reliably compound between the tubular skeleton of semicircle metal and inner tubal wall.2, having the design of a plurality of inside trumpet shape through holes on the semicircle face of the tubular skeleton of semicircle metal, is two of technical characteristics of the present utility model.The purpose of doing like this is: when molten plastic and the tubular skeleton compound tense of semicircle metal that is furnished with a plurality of inside trumpet shape through holes, the plastics of its melting externally enter a plurality of inside trumpet shape through holes and form with nail under the effect of pressure and cover continuously connected fastener, and plastic layer and D shape metal tube face that this continuously connected fastener will be compounded on the tubular skeleton face of semicircle metal firmly are connected as a single entity.
Technological scheme: a kind of semicircle metal tubular openings ailhead skeleton for bellows, it comprises the bellows skeleton, described bellows skeleton is the tubular skeleton of semicircle metal and middle part, the tubular skeleton of semicircle metal bottom surface has through hole along long, has a plurality of inside trumpet shapes hole on the semicircle metal tube face.
The utility model is compared with background technique, the one, semicircle metal tubular skeleton bottom surface and inner tube plane-plane contact, so that during the tubular skeleton pressurized of semicircle metal, not only greatly alleviated the pressure to inner tube, and the tubular skeleton of semicircle metal is just as the arch bridge structure, bearing capacity is large, has greatly improved inner tube support strength and bearing capacity; The 2nd, because the tubular skeleton of semicircle metal bottom surface is embedded with the plastics wedge along the long through hole of opening, this plastics wedge has been guaranteed the reliable connection between the tubular skeleton of semicircle metal and inner tubal wall, has guaranteed that bellows in use stratification can not occur; The 3rd, owing to having a plurality of inside trumpet shape holes on the tubular skeleton face of semicircle metal and being positioned at plastic layer on the tubular skeleton face of semicircle metal at the melting compound tense, be injected in a plurality of inside trumpet shapes hole on the tubular skeleton face of semicircle metal, form the Plastic Rivets headkerchief, plastic layer and the tubular skeleton face of semicircle metal that this Plastic Rivets headkerchief will be positioned on the tubular skeleton face of semicircle metal firmly are connected as a single entity, and have guaranteed that bellows in use stratification can not occur.
Description of drawings
Fig. 1 is the structural representation for the semicircle metal tubular openings ailhead skeleton of bellows.
Embodiment
Embodiment 1: with reference to accompanying drawing 1.A kind of semicircle metal tubular openings ailhead skeleton for bellows, it comprises bellows skeleton 1, described bellows skeleton 1 is the tubular skeleton of semicircle metal and middle part, the tubular skeleton of semicircle metal bottom surface has through hole 2 along long, has a plurality of inside trumpet shapes hole 3 on the semicircle metal tube face.Middle part, described semicircle metal tube bottom surface is little 20 millimeters along long through-hole 2 width.Described a plurality of inside trumpet shapes hole is that the area of close plastic layer is inside trumpet shape less than close via area, and its preparation process is prior art, is not described herein at this.
What need to understand is: although above-mentioned to the mentality of designing of the present utility model detailed text description of contrasting; but these text descriptions; just the simple text of the utility model mentality of designing is described; rather than to the restriction of the utility model mentality of designing; any combination that does not exceed the utility model mentality of designing; increase and modification, all fall in the protection domain of the present utility model.
Claims (2)
1. semicircle metal tubular openings ailhead skeleton that is used for bellows, it comprises the bellows skeleton, it is characterized in that: described bellows skeleton (1) is the tubular skeleton of semicircle metal and middle part, the tubular skeleton of semicircle metal bottom surface has through hole along length, have a plurality of inside trumpet shapes hole on the semicircle metal tube face, described a plurality of inside trumpet shapes hole is that the area of close plastic layer is inside trumpet shape less than close via area.
2. the semicircle metal tubular openings ailhead skeleton for bellows according to claim 1 is characterized in that: little 20 millimeters along the long through-hole width in the middle part of the described semicircle metal tube bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220005994 CN202868124U (en) | 2012-01-09 | 2012-01-09 | Semi-round metal tube-shaped opening nail-head framework used for corrugated tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220005994 CN202868124U (en) | 2012-01-09 | 2012-01-09 | Semi-round metal tube-shaped opening nail-head framework used for corrugated tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202868124U true CN202868124U (en) | 2013-04-10 |
Family
ID=48034844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220005994 Expired - Fee Related CN202868124U (en) | 2012-01-09 | 2012-01-09 | Semi-round metal tube-shaped opening nail-head framework used for corrugated tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202868124U (en) |
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2012
- 2012-01-09 CN CN 201220005994 patent/CN202868124U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20190109 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |