CN2860660Y

CN2860660Y - Ring press tool for tube element connection

Info

Publication number: CN2860660Y
Application number: CN 200520036619
Authority: CN
Inventors: 文长宏
Original assignee: CHENGDU COMMON TUBE INDUSTRY Co Ltd
Current assignee: CHENGDU COMMON TUBE INDUSTRY Co Ltd
Priority date: 2005-12-22
Filing date: 2005-12-22
Publication date: 2007-01-24
Anticipated expiration: 2015-12-22

Abstract

A ring-pressing tool used to join the pipes belongs to the technical field of steel-pipe connection, comprising an oil-cylinder, a clamp head, a clamp mouth, a slipper, a guide plate and the top module respectively set on the slipper and the clamp mouth, the lower module and the pressing plate on the top module. The top module consists of the top fixing module and the movable modules fixed on the two sides of the top fixing module by springs. The lower module consists of the lower fixing module and the movable modules fixed on the two sides of the lower fixing module by springs. A gear-structure is set between the connecting faces of the top and lower modules. A guide-groove is set on the end-face of each movable module. The limiting bar extending to the guide-groove is set on the guide-plate and pressing plate. The top and thelower module fold as a right hexagon with a hole in the center. The slipper and the clamp mouth bear a trapezium-module setting base which corresponds to the hexagon. The sliding distance of module is short and the ring-pressing quality is high and can displace the existing ring-pressing tools.

Description

The ring-pressing tool that a kind of connecting tube is used

Affiliated technical field

The utility model relates to a kind of steel pipe fastening means, particularly relates to a kind of ring pressure type steel pipe fastening means.

Background technology

That Chinese patent CN2726759Y discloses is a kind of " hydraulic type pipe ring is pressed fastening means " mainly by oil cylinder, be arranged on the oil cylinder piston end binding clip with the jaw of binding clip butt joint, be connected with the guide plate of the slide block of oil cylinder piston bar, the corresponding both ends of the surface that are arranged on slide block and be separately positioned on slide block and jaw on upper module, lower module constitute, slide block is promoted the closed fully crimping of promptly finishing pipe of supreme lower module by oil cylinder piston to the upper module direction together with lower module.The shortcoming of this ring-pressing tool is that ring pressing mold piece only is divided into two semicircles, when module aluminium hydraulic pressed connecting pipe period of the day from 11 p.m. to 1 a.m module is longer in the distance of steel tube surface slippage, makes the steel pipe generation fold that is crimped easily, causes pipeline to leak.For fear of fold, the present practice is that the amount of contraction with crimping subtracts seldom, causes so again by the bonding strength of pipeline and reduces, reliability decrease.In addition,, cause module wear easily, cause the service life of module short because module is longer at the steel tube surface sliding distance.

Summary of the invention

The purpose of this utility model is to overcome the above-mentioned shortcoming of prior art, for the pipe crimping provides that a kind of module slippage is little, long service life and the high ring-pressing tool of crimp quality reliability.

The ring-pressing tool of realizing the utility model purpose comprises oil cylinder, be arranged on the binding clip of oil cylinder piston end and the jaw that docks with binding clip, connect slide block with the oil cylinder piston bar, correspondence be arranged on slide block both ends of the surface guide plate and be separately positioned on slide block and jaw on upper module, lower module and the pressing plate that is crimped on the upper module, it is characterized in that described upper module is made of the active module that is fixed on the last stuck-module on the jaw and be connected the stuck-module both sides with spring respectively, described lower module is made of the active module that is fixed on the following stuck-module on the slide block and be connected down the stuck-module both sides with spring respectively, last, being provided with between the interface of lower module can intermeshing tooth-shape structure, on the end face of each active module, offer a gathering sill, be provided with the gag lever post of stretching in gathering sill guide plate and pressing plate with corresponding position this gathering sill, on, be a regular hexagon that the middle part is a circular hole after lower module closes up, described slide block and jaw have a trapezoidal module mount pad corresponding with this hexagon.Imposing power during work makes oil cylinder piston bar promotion slide block move to the jaw direction, draw close to stuck-module under effect that originally active module is located by spring before module does not have closure and the effect of tension force that overcomes spring at gag lever post, what be provided with between the interface of upper and lower module in this process can finish engagement by intermeshing broached-tooth design gradually, play accurate positioning action, both module was interior round-formed, and ring pressure process finishes.In mold process, substitute original monoblock type semicircle module with stuck-module and active module, thereby reduced the wearing and tearing of the slippage and the module of module, prolonged the service life of module, alleviated the fold degree of steel pipe after, guaranteed the pressing quality by pressing.

Compared with the aforementioned existing similar products, the advantage of this ring-pressing tool is to have adopted the polylith module, and each module is all very short with respect to the sliding distance of steel pipe in the work, has improved the quality that ring is pressed greatly, realizes that a secondary ring is pressed into merit.Alternative existing semicircle module ring-pressing tool uses.

Content of the present utility model further illustrates with the following Examples, but content of the present utility model is not limited only to content related among the embodiment.

Description of drawings

Fig. 1 is a structural representation of the present utility model

Fig. 2 is the D-D view of Fig. 1

Fig. 3 is the A-A zoomed-in view of Fig. 1

Fig. 4 is the front view of slide block

Fig. 5 is the B-B view of Fig. 4

Fig. 6 is the structural representation of module

Fig. 7 is the E-E view of Fig. 6

Fig. 8 is the structural representation of jaw

Fig. 9 is the C-C view of Fig. 8

The specific embodiment

Shown in Fig. 1～3, the formation of this ring-pressing tool comprises oil cylinder 1, be arranged on the binding clip 2 of oil cylinder piston end and the jaw 9 that docks with binding clip 2, be connected in the slide block 4 of oil cylinder piston bar 7, correspondence be arranged on slide block 4 both ends of the surface guide plate 6 and be separately positioned on slide block 4 and jaw 9 on upper module, lower module and the pressing plate 11 that is crimped on the upper module, described upper module is by being fixed on the last stuck-module 19 on the jaw 9 and being connected the active module 5 on stuck-module both sides respectively with

spring

15,25 constitute, referring to Fig. 6～7, spring can adopt arranged side by side two, is provided with a lead 23 between two springs.The benefit of doing like this is the better effects if of the first location before module does not have closure.Described lower module is by being fixed on the following stuck-module 29 on the slide block and being connected down the active module 35 on stuck-module both sides respectively with

spring

15,45 constitute, last, being provided with between the interface of lower module can intermeshing tooth-shape structure 18, on the end face of active module, offer a gathering sill 24, be provided with the gag lever post of stretching in gathering sill 10 guide plate and pressing plate with corresponding position this gathering sill, on, it after lower module closes up a regular hexagon that the middle part is a circular hole, described slide block has a trapezoidal module mount pad 16 corresponding with this hexagon, participate in Fig. 4～5, jaw has a trapezoidal module mount pad 14 corresponding with this hexagon, referring to Fig. 8～9.13 are jaw installation pin-and-hole among the figure, and 12 is mount pin, and 8 for connecting the split pins of oil cylinder piston bar 7 and

slide block

4, and 21 for to be connected on the binding clip 2 mount pin 12 in case the chain that anti-avulsion falls is prior art.

Claims

1, the ring-pressing tool that a kind of connecting tube is used, comprise oil cylinder, be arranged on the binding clip of oil cylinder piston end and the jaw that docks with binding clip, connect slide block with the oil cylinder piston bar, correspondence be arranged on slide block both ends of the surface guide plate and be separately positioned on slide block and jaw on upper module, lower module and the pressing plate that is crimped on the upper module, it is characterized in that described upper module is made of the active module that is fixed on the last stuck-module on the jaw and be connected the stuck-module both sides with spring respectively, described lower module is made of the active module that is fixed on the following stuck-module on the slide block and be connected down the stuck-module both sides with spring respectively, last, being provided with between the interface of lower module can intermeshing tooth-shape structure, on the end face of each active module, offer a gathering sill, be provided with the gag lever post of stretching in gathering sill guide plate and pressing plate with corresponding position this gathering sill, on, be a regular hexagon that the middle part is a circular hole after lower module closes up, described slide block and jaw have a trapezoidal module mount pad corresponding with this hexagon.

2, ring-pressing tool as claimed in claim 1 is characterized in that described active module is connected with stuck-module with two springs arranged side by side, is provided with a lead between two springs.