CN204402381U

CN204402381U - A kind of coupling assembling of hydrate sampling light-wall pipe

Info

Publication number: CN204402381U
Application number: CN201420848137.8U
Authority: CN
Inventors: 许俊良; 任红; 韩来聚; 周洪国; 陈忠帅; 赵宗峰; 田宗正; 李明朝; 周国庆
Original assignee: Drilling Technology Research Institute of Sinopec Shengli Petroleum Engineering Corp
Current assignee: Drilling Technology Research Institute of Sinopec Shengli Petroleum Engineering Corp
Priority date: 2014-12-29
Filing date: 2014-12-29
Publication date: 2015-06-17
Anticipated expiration: 2024-12-29

Abstract

The utility model relates to the coupling assembling of a kind of hydrate sampling light-wall pipe, comprise thin-walled mother pipe and the male pipe of thin-walled, unthreaded hole is processed in the female pipe of thin-walled, in unthreaded hole inner end, multiple radial square hole is set, the public pipe of thin-walled arranges the elastic claw of some, on elastic claw top, boss is set, boss external diameter is consistent with OD of Thin Wall Welded Pipe, the little certain tolerance value of internal diameter of the unthreaded hole of processing in the external diameter pipe more female than thin-walled of elastic claw, during connection, the elastic claw of male for thin-walled pipe is inserted in the unthreaded hole in the female pipe of thin-walled, the boss that elastic claw top is arranged embeds in the radial square hole that in thin-walled mother pipe, unthreaded hole inner end is arranged, elastic force by the upper elastic claw arranged of thin-walled public affairs pipe realizes the connection of two pieces light-wall pipe.

Description

A kind of coupling assembling of hydrate sampling light-wall pipe

Technical field

The utility model relates to oil, gas drilling sampling field of operation, specifically a kind of coupling assembling for gas hydrates rope sampling instrument light-wall pipe.

Background technology

Rope heat-insulation pressure keeping coring tool due to by latus rectum in drilling tool be limited in pipe in design this kind of instrument time need to adopt the aluminium that wall is thinner to close pipe as probe tube, want meet between probe tube or with the connection of other part and there is certain intensity and connect quick, convenient disassembly, reuse.But technology is in the past all that machining screw connects on non-ferrous metal or nonmetal light-wall pipe, being threaded one is processing difficulties, and two is time-consuming, efforts, even can not each parts of complete dismounting, causes unnecessary waste.

Summary of the invention

The purpose of this utility model is the deficiency existed to solve the light-wall pipe that is threaded, and provides a kind of hydrate to sample the coupling assembling of light-wall pipe.

The utility model is achieved through the following technical solutions:

A coupling assembling for hydrate sampling light-wall pipe, is connected to form by thin-walled mother pipe and the male pipe of thin-walled, its feature: light-wall pipe at least one link female is interior expanding thin wall construction, at uniform at least two slots of the periphery of this thin-walled link; At least one inserted terminal circumference of thin-walled public affairs pipe that grafting coordinates with it is provided with elastic claw, the external diameter of elastic claw and the female pipe racks of thin-walled have the internal diameter of rectangle nose end suitable, elastic claw outer end is provided with the boss coordinated with slot grafting, boss external diameter is consistent with OD of Thin Wall Welded Pipe, and the quantity of elastic claw is identical with distribution slot.

Such scheme comprises further: thin-walled depth expanding in thin-walled mother pipe is identical with the elastic claw length of the male pipe of thin-walled.

At thin-walled mother pipe and thin-walled male pipe grafting involutory outer joint portion, seal is set.

The coupling assembling of hydrate sampling light-wall pipe of the present utility model, revolutionizing existing light-wall pipe adopts screw thread to carry out connecting the processing difficulties brought, time-consuming, effort, the low easy fracture of junction intensity, even can not the problem of each parts of complete dismounting, during connection, the elastic claw of male for thin-walled pipe is inserted in the unthreaded hole in the female pipe of thin-walled, the boss that elastic claw top is arranged embeds in the radial square hole of light-wall pipe female unthreaded hole inner end setting, and the elastic force by the elastic claw of light-wall pipe Gongshang setting realizes the connection of two pieces light-wall pipe.Well achieve that structure is simple, convenient disassembly, can to reuse, safe and reliable.

Accompanying drawing explanation

The structural representation of the light-wall pipe coupling assembling that Fig. 1 proposes for the utility model.

In figure: 1 thin-walled mother pipe, the radial slot of the female pipe of 2 thin-walleds, 3 thin-walled public affairs pipes, the boss on 4 elastic claw tops, the elastic claw that 5 light-wall pipe Gongshang are arranged.

Detailed description of the invention

Below in conjunction with specification drawings and specific embodiments, the utility model is further described.

With reference to accompanying drawing 1, a kind of coupling assembling of hydrate sampling light-wall pipe, connected to form by the female pipe 1 of thin-walled and the male pipe 3 of thin-walled, in: female 1 at least one link of light-wall pipe is interior expanding thin wall construction, at uniform at least two slots 2 of the periphery of this thin-walled link; At least one inserted terminal circumference of the public pipe 3 of the thin-walled of grafting cooperation is provided with elastic claw 5 with it, the external diameter of elastic claw 5 is suitable with the internal diameter of slot 2 end with the female pipe 1 of thin-walled, elastic claw 5 outer end is provided with the boss 4 coordinated with slot 2 grafting, and the female pipe 1 of boss 4 external diameter and thin-walled, thin-walled male pipe 3 external diameter are consistent; The quantity of elastic claw 5 is identical with distribution slot 2.

Further: thin-walled depth expanding in the female pipe 1 of thin-walled is identical with elastic claw 5 length of the male pipe of thin-walled 3.

Further: at the female pipe 1 of thin-walled and thin-walled male pipe 3 grafting involutory outer joint portion, seal is set.

Using method: the thin-walled mother processed is managed and the male pipe of thin-walled, before inserting by the boss on elastic claw top of upper for male for thin-walled pipe setting and the square hole of light-wall pipe mother to directly, because the upper elastic claw arranged of thin-walled public affairs pipe has elasticity, firmly male for thin-walled pipe is inserted in light-wall pipe mother; the boss on the elastic claw top of the male pipe of thin-walled is embedded in the slot of the female pipe of thin-walled; realize the connection of thin-walled mother pipe and the male pipe of thin-walled, form light-wall pipe coupling assembling.

Only firmly need press the boss on thin-walled public tubular elastic calvus top during dismounting, pull thin-walled mother pipe both can be made to be separated with the male pipe of thin-walled.

Claims

1. the coupling assembling of a hydrate sampling light-wall pipe, connected to form by thin-walled mother's pipe (1) and the male pipe (3) of thin-walled, it is characterized in that: light-wall pipe mother (1) at least one link is interior expanding thin wall construction, uniform at least two slots (2) of the periphery of this thin-walled link; At least one inserted terminal circumference that the thin-walled public affairs that grafting coordinates with it manage (3) is provided with elastic claw (5), the external diameter of elastic claw (5) is suitable with the female internal diameter (1) held with slot (2) of managing of thin-walled, elastic claw (5) outer end is provided with the boss (4) coordinated with slot (2) grafting, and boss (4) external diameter manages (1) with thin-walled mother, male (3) external diameter of managing of thin-walled is consistent; The quantity of elastic claw (5) is identical with distribution slot (2).

2. the coupling assembling of hydrate according to claim 1 sampling light-wall pipe, is characterized in that: thin-walled depth expanding in thin-walled mother's pipe (1) and thin-walled be male, and to manage elastic claw (5) length of (3) identical.

3. the coupling assembling of hydrate sampling light-wall pipe according to claim 1, is characterized in that: arrange seal at thin-walled mother's pipe (1) and the involutory outer joint portion of thin-walled male pipe (3) grafting.