CN202745715U

CN202745715U - Zero-leakage anti-reversing union

Info

Publication number: CN202745715U
Application number: CN 201220351546
Authority: CN
Inventors: 沃风林; 赵海军; 张仁杰; 张龙江; 邓鲁宁; 崔臣滨; 沃坤
Original assignee: 沃风林
Priority date: 2012-07-19
Filing date: 2012-07-19
Publication date: 2013-02-20
Anticipated expiration: 2022-07-19

Abstract

The utility model relates to a rapid hydraulic pipeline connection device and particularly relates to a zero-leakage anti-reversing union. The zero-leakage anti-reversing union structurally comprises a male union head and a female union head, wherein a union ring is arranged outside the male union head and the female union head which are embedded with each other; the inner wall of the embedded part of the male and female union heads is provided with a V-shaped groove; and the V-shaped groove is internally provided with a sealing rubber ring. The zero-leakage anti-reversing union can overcome the high-pressure and low-pressure leakage of the conventional union and can be used for connecting high-pressure pipelines rapidly in an emergency rescue process; the union is prevented from being smashed by an iron hammer in an emergency rescue field, so that the pipelines can be rapidly connected and unsafe factors of smashing by the hammer are reduced in the emergency rescue field; and when being used in a well repairing process and an oil extracting process at ordinary time, the zero-leakage anti-reversing union can be used for connecting the pipeline rapidly, be subjected to the check of high pressure and low pressure and reduce the labor strength of workers.

Description

Zero seepage capable of preventing covering upside down union

Technical field

The utility model relates to a kind of hydraulic line Quick Connect Kit, particularly a kind of zero seepage capable of preventing covering upside down union.

Background technology

At present, known union sealing is that outer power is tightened onto to a certain degree afterwards sealing, and in routine use, high-low pressure test seepage is serious; At the blowout scene of speedily carrying out rescue work, pipeline connects comparatively difficulty, because the blowout scene is full of natural gas, bans use of hammer to pound union, in order to avoid because pound the expansion that causes the accident of spark that hammer causes.

Summary of the invention

In order to solve the problem of prior art, the utility model embodiment provides a kind of zero seepage capable of preventing covering upside down union, it can overcome in the seepage that has the union high-low pressure now and the process of speedily carrying out rescue work that is connected can connect high pressure line fast, and avoid using hammer to pound union at the scene of speedily carrying out rescue work, it is fast that the on-the-spot pipeline of speedily carrying out rescue work is connected, and reduced the unsafe factor of pounding hammer; In at ordinary times well workover and oil recovery process, also can use, not only connect fast, can withstand the check of high-low pressure, also reduce workman's labour intensity.

The technical scheme that the utility model adopts is as follows:

A kind of zero seepage capable of preventing covering upside down union, comprise union male and union female, chimeric union male and union female arranged outside has the union ring mutually, is provided with the V-type groove on the chimeric place inwall of described union male and union female, in the described V-type groove O-ring seal is set.

Be provided with lock-screw on the union ring.

Be provided with on the union ring and screw the hole.

Process respectively a V-type groove that certain angle is arranged at the end face of union male and union female, and put into wherein with an O-ring seal that is designed with two V-type grooves, screwing in the process of union ring, make the two ends of the O-ring seal that is designed with two V-type grooves enter respectively the V-type groove of union male and union female, because the two ends of cushion rubber and union male and union female V-type groove are the angle interference fit, therefore screw at the union ring that each V-type groove has produced two sealing surfaces in the process, guaranteed that low pressure do not leak, after highly pressurised liquid enters, two V-type grooves of cushion rubber enter highly pressurised liquid, pressure is higher, the sealing surface of O-ring seal and union male, the sealing surface of union female V-type groove is tightr, make it reach the purpose of high pressure sealing, pressure is higher, and cushion rubber is larger to the thrust of union male and union female, and the frictional force of generation is also larger, make the possibility of its back-off just less, namely reached the purpose of capable of preventing covering upside down.Cylindrical at the union ring is designed with mechanical interlock mechanism, after the union ring screws, by lock-screw the external diameter of union male is carried out machinery pressurization locking, the secondary locking when having reached union work.In the outer radius of O-ring seal, union male and union female have the bonding surface of a conical surface and circular arc, and the secondary that has formed union seals firmly, and the union ring more screws, and the union sealing is more reliable, and the pressure that bears is higher.

The beneficial effect that the technical scheme that the utility model embodiment provides is brought is:

The combination sealing of union design, hand-tight make-up just can be accomplished no seepage and no leakage in use, in use can connecting fast speedily carries out rescue work uses the high-low pressure pipeline, pound the zero seepage that union can be accomplished low pressure, high pressure without hammer, solve the check of gas pressure testing, reduced the unsafe factor of pounding hammer; Reduced workman's labour intensity, pressure is higher, and the thrust of cushion rubber and union male and female is larger, and the frictional force of generation is also larger, makes the possibility of its back-off just less, has namely reached the purpose of capable of preventing covering upside down, and simple in structure, and sealing is reliable; The mechanical interlock mechanism that increases makes the capable of preventing covering upside down effect of union more reliable.

Description of drawings

Fig. 1 is the internal construction schematic diagram of zero seepage capable of preventing covering upside down union of the present utility model.

The specific embodiment

For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing the utility model embodiment is described in further detail.

As shown in Figure 1, a kind of zero seepage capable of preventing covering upside down union, comprise union male 1 and union female 2, chimeric union male 1 and union female 2 arranged outside have union ring 3 mutually, be provided with V-type groove 4, the described V-type groove 4 interior O-ring seals 5 that arrange on the chimeric place inwall of described union male 1 and union female 2.

In the present embodiment, be provided with lock-screw 6 on the union ring 3.

Be provided with on the union ring 3 and screw hole 7.

In Fig. 1, in the V-type groove 4 of union male 1 and union female 2, put into O-ring seal 5, insert with hand or with afterburning thick stick and screw hole 7, screw union ring 3, make the two ends of the O-ring seal 5 that is designed with two V-type grooves enter respectively the V-type groove 4 of union male 1 and union female 2.

The above only is preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

Claims

1. zero seepage capable of preventing covering upside down union, comprise union male and union female, it is characterized in that chimeric union male and union female arranged outside has the union ring mutually, be provided with the V-type groove on the chimeric place inwall of described union male and union female, in the described V-type groove O-ring seal be set.

2. a kind of zero seepage capable of preventing covering upside down union according to claim 1 is characterized in that, is provided with lock-screw on the described union ring.

3. a kind of zero seepage capable of preventing covering upside down union according to claim 1 is characterized in that, is provided with on the described union ring and screws the hole.