CN204126631U - Testing and adjusting linkage safety cable head - Google Patents

Abstract

The utility model discloses a survey and transfer linkage safety cable head, including preventing roll over spring, fag end, take a percentage spring, gasket, elasticity steel bushing, sleeve, spring pretension screw rod, its characterized in that: a clamping table is arranged above a threaded structure in a lower cavity of the rope cap, the sleeve is fixed between the clamping table and the spring pre-tightening screw rod, the elastic steel sleeve is conical, a lower opening of the elastic steel sleeve is inserted into the sleeve, a central cavity is arranged in the elastic steel sleeve, the cable penetrates through the central cavity, a gasket is arranged on the upper surface of the elastic steel sleeve, the outer diameter of the tapping spring is larger than that of the bottom of the transition cavity, and the tapping spring is arranged in an inner cavity of the rope cap above the gasket. When taking a percentage the operation, the sleeve is fixed motionless, and the cable area elastic steel cover shifts up, and the elastic steel cover opens, and the cable is loosened, so uses the utility model discloses a cable head can not damage the cable, takes a percentage the operation also safe, and efficiency of software testing consequently obtains further promotion to provide the guarantee for the popularization and application of testing and adjusting linkage technique.

Description

Survey and adjust interlock safety electric cable end

Technical field

The utility model relates to the survey used in a kind of oilfield test technology and adjusts interlock cable head.

Background technology

Daqing oil field is strengthening " meticulous water filling ", improve seperated layer water injection qualification rate, layering is noted well and be adjusted to year survey tune 3 times for 2 times by surveying tune year, within 2009, start the measuring technology progressively applying a kind of advanced person for this reason--survey and adjust interlock, it adopts cable transmission signal, down-hole water nozzle adjustment can be carried out by terrestrial operation to show in real time with water yield ground, achieve meticulous efficient survey and adjust.But find in the application of 2 years, survey and adjust the vitals cable head (for connecing flow meter and cable) of interlocking equipment to there is following technological deficiency: one is that bigger than normal (tap is exactly flow meter down-hole portable cable on winch when meeting card for the tap pulling force 4KN of design, automatically meet card flow meter with down-hole when the pulling force that cable is subject to reaches certain numerical value to be separated), easily cause cable outer layer armour silk to break during tap; Two be due to flow meter frequently from down-hole, ground, test carriage remove, long-time operation rope socket head place cable is easily lost; Three is that tap pulling force is unstable, occurs that proper testing process Instrumental falls the situation in well; Four is cannot tap with partial cables head, must break cable when flow meter down-hole is stuck.The reason producing the problems referred to above adjusts the taps approach of cable head to cause by existing survey, particularly existing taps approach adopts stiction to control, elasticity steel bushing maintains static (by pad dieback), when the tap pulling force that cable is subject to is greater than the maximum static friction force of cable and Elastic Steel inner room, extract cable, complete tap, so cause after each tap cable and elasticity steel bushing inner wall abrasion larger, tap pulling force is unstable, so have the generation of the phenomenons such as cable outer layer armour silk is broken, cable is lost.In a word, survey and adjust in interlock tap procedure, due to the unreasonable structure of cable head, make to create many unsafe factors in tap operations process.

Summary of the invention

The purpose of this utility model is to provide a kind of novel survey and adjusts interlock safety electric cable end, and this cable head can realize safe tap, thus improves testing efficiency, increases safety and the application life of cable, is conducive to surveying and adjusts applying of linkage technique.

For achieving the above object, the technical solution adopted in the utility model is: a kind of survey adjusts interlock safety electric cable end, comprise anti-folding spring, rope socket, tap spring, pad, elasticity steel bushing, sleeve, spring pre-tightening screw rod, wherein rope socket is structurally divided into, lower two, and upper, between lower two, tapered transitional is set, tapering transition chamber is set in tapered transitional, the lower diameter of anti-folding spring is greater than its upper diameter, the top of anti-folding spring is from penetrating to the adapter cavity of rope socket and passing from the epicoele of rope socket, the bottom of anti-folding spring is stuck in the adapter cavity of rope socket, cable passes from anti-folding spring, the cavity of resorption diameter of rope socket is greater than its epicoele diameter, the lower port of rope socket arranges helicitic texture, be connected with spring pre-tightening screw flight, above helicitic texture in rope socket cavity of resorption, chuck is set, sleeve is stuck between chuck and spring pre-tightening screw rod, elasticity steel bushing is coniform, its end opening is inserted in sleeve, its inside arranges center cavity, cable passes from this center cavity, the upper surface of elasticity steel bushing places pad, the external diameter of tap spring is greater than the external diameter bottom adapter cavity, tap spring is placed in the rope socket inner chamber on pad.

The beneficial effects of the utility model: interlock safety electric cable end is adjusted in the survey of the application, and when carrying out tap operations, sleeve maintains static, cable puts with Elastic Steel and moves, when elasticity steel bushing shifts out sleeve, elasticity steel bushing opens, and cable no longer suffers restraints, so use cable head of the present invention, can not cable be damaged, thus reduce the loss, improve tap operations safety, testing efficiency is also promoted further, adjusts applying of linkage technique to provide safeguard for surveying.

Accompanying drawing explanation

Fig. 1 is that the utility model surveys the structural representation adjusting interlock safety electric cable end.

Detailed description of the invention

Below in conjunction with accompanying drawing, the utility model is described further:

As shown in Figure 1: a kind of survey adjusts interlock safety electric cable end, comprise anti-folding spring 1, rope socket 2, tap spring 4, pad 5, elasticity steel bushing 6, sleeve 7, spring pre-tightening screw rod 8, wherein rope socket 2 is structurally divided into, lower two, and upper, between lower two, tapered transitional is set, tapering transition chamber is set in tapered transitional, the lower diameter of anti-folding spring 1 is greater than its upper diameter, the top of anti-folding spring 1 penetrates and passes from the epicoele of rope socket 2 from the adapter cavity to rope socket 2, the bottom of anti-folding spring 1 is stuck in the adapter cavity of rope socket 2, cable 3 passes from anti-folding spring 1, the cavity of resorption diameter of rope socket 2 is greater than its epicoele diameter, the lower port of rope socket 2 arranges helicitic texture, be threaded with spring pre-tightening screw rod 8, above helicitic texture in rope socket 2 cavity of resorption, chuck is set, sleeve 7 is stuck between chuck and spring pre-tightening screw rod 8, elasticity steel bushing 6 is coniform, its end opening is inserted in sleeve 7, its inside arranges center cavity, cable 3 passes from this center cavity, the upper surface of elasticity steel bushing 6 places pad 5, the external diameter of tap spring 4 is greater than the external diameter bottom adapter cavity, tap spring 4 is placed in rope socket 2 inner chamber on pad 5.

The tap principle of the utility model cable head is: cable 3 entirety is through elasticity steel bushing 6, by tightening screw compression spring 8, thus compress elasticity steel bushing 6, make it " holding " cable 3, meet the upper portable cable 3 of card, sleeve 7 maintains static, cable 3 moves with on elasticity steel bushing 6, and elasticity steel bushing 6 opens, and reduces cable 3 pressure, cable 3 can be extracted, and completes " tap ".

Claims (1)

1. survey tune interlock safety electric cable end for one kind, comprise anti-folding spring, rope socket, tap spring, pad, elasticity steel bushing, sleeve, spring pre-tightening screw rod, wherein rope socket is structurally divided into, lower two, and upper, between lower two, tapered transitional is set, tapering transition chamber is set in tapered transitional, the lower diameter of anti-folding spring is greater than its upper diameter, the top of anti-folding spring is from penetrating to the adapter cavity of rope socket and passing from the epicoele of rope socket, the bottom of anti-folding spring is stuck in the adapter cavity of rope socket, cable passes from anti-folding spring, the cavity of resorption diameter of rope socket is greater than its epicoele diameter, the lower port of rope socket arranges helicitic texture, be connected with spring pre-tightening screw flight, it is characterized in that: above the helicitic texture in rope socket cavity of resorption, chuck is set, sleeve is fixed between chuck and spring pre-tightening screw rod, elasticity steel bushing is coniform, its end opening is inserted in sleeve, its inside arranges center cavity, cable passes from this center cavity, the upper surface of elasticity steel bushing places pad, the external diameter of tap spring is greater than the external diameter bottom adapter cavity, tap spring is placed in the rope socket inner chamber on pad.