CN201487447U

CN201487447U - Quick self-sealing joint

Info

Publication number: CN201487447U
Application number: CN2009202166576U
Authority: CN
Inventors: 韩昌; 王信义
Original assignee: Daqing Petroleum Administration Bureau
Current assignee: Daqing Petroleum Administration Bureau
Priority date: 2009-09-15
Filing date: 2009-09-15
Publication date: 2010-05-26
Anticipated expiration: 2019-09-15

Abstract

A quick self-sealing joint mainly solves the problems of poor interchangeability, poor connection and poor stability of the traditional quick self-sealing joint. The quick self-sealing joint is characterized in that left and right sides of inner threads of male and female joints (1, 13) are respectively provided with a sealing groove (2), the left shoulder of the female joint (1) is matched with a lock card jacket (7) and a spring (6) is arranged between the left shoulder and the lock card jacket, and marble holes (15) of marbles (5) are uniformly arranged in a circumferential direction on the side wall of the left female joint (1) of the spring (6). The protruding part of the marble (5) is in contact with the lock card jacket (7), the corresponding part of the male joint (1) is provided with a marble hole (14), the left side of the marble holes (15) is provided with a jump ring B (4), the inner wall of the female joint (13) is provided with a plurality of sealing rings A (8), and the left and the right sides of valve cores (9, 1) inside the female joints (1, 13) are respectively provided with a jump spring A (3). The quick self-sealing joint has the advantages of good interchangeability, connection, long-term stability, and resistance to high pressure.

Description

Quick self-sealing joint

Technical field:

The utility model relates to the used joint of a kind of hydraulic system, quick specifically self-sealing joint.

Background technique:

Existing quick self-sealing joint is to realize quick mounting and dismounting by the locker that is installed in the self-styled female joint mostly, spool group in the male and female joint is that screw thread is installed, back-off easily takes place, spacing instability and cause axially displaced, screw thread is twisted and spool to be pushed up not open and is caused the obstructed phenomenon of oil circuit, therefore, the property connected is poor.Simultaneously, seal by a rubber o-ring in male and female joint cooperation place, and tool joint pin and pipeline or instrument, sensor connecting place, and female joint and pipeline connecting place, seal by metallic packing or rubber o-ring, all there is the deficiency of the low and long time stability difference of pressure-resistant seal pressure in these sealing part, and owing to can not exchange between each producer's product, even and same manufacturer because precision is low, also have much between the product of different batches and can not exchange, thereby interchangeability is poor.

The model utility content:

In order to solve the problem of existing quick self-sealing joint interchangeability, the property connected and long time stability difference, the utility model provides a kind of quick self-sealing joint, and this quick self-sealing joint has interchangeability, the property connected, good, the withstand voltage high characteristics of long time stability.

The technical solution of the utility model is: a kind of quick self-sealing joint, comprise public affairs, female joint, spool, public, the female joint internal thread right side, the both sides, left side have the seal groove of placing seal ring B respectively, female joint left side shoulder cooperates with the pintle hook lock sheath, and spring is arranged between the two, circumferential uniform several are equipped with the pellet shot from a slingshot hole of pellet shot from a slingshot on the spring left side female joint sidewall, the outside projection of pellet shot from a slingshot contacts with the pintle hook lock sheath, there is bullet groove the corresponding position of tool joint pin, left side, pellet shot from a slingshot hole is equipped with jump ring B, the female joint inwall is equipped with several sealed circle A, and public, a female joint inner spool left side, the right side is equipped with jump ring A respectively.

One of them seal ring A places female joint conical surface of inboard wall and cylinder intersection, and above-mentioned seal ring A, B cross section are ellipse.

The utlity model has following beneficial effect: owing to take such scheme, place seal ring in joint internal thread bottom, improved the sealing voltage endurance capability, sealability is better; The oval rubber seal of multiple tracks is adopted in male and female joint cooperation place, and wherein one seal ring places awl cross section and column section intersection, further improved sealability and voltage endurance capability; The spool of joint inside is by the jump ring fixed limit, can not exchange because of the operator is firmly different when having avoided that screw thread was spacing in the past, improved interchangeability, the property connected, and long time stability is more reliable; There is the pintle hook lock sheath female joint outside, the pintle hook lock sheath is fixed on pellet shot from a slingshot in the pellet shot from a slingshot hole, when joint need be connected, the head of tool joint pin is inserted in the head spliced eye of female joint, only need to the push-and-pull of female joint direction the pintle hook lock sheath, pellet shot from a slingshot leaves bullet groove, and tool joint pin can be shifted the female joint bottom onto, at this moment unclamps the pintle hook lock sheath, pintle hook lock sheath playback under the effect of spring, pellet shot from a slingshot is pressed in the bullet groove of tool joint pin, male and female joint lock is one, joint is connected.This rapid pipe joint interchangeability, the property connected, long time stability are good, and simple to operate, and the sealing voltage endurance capability is good, satisfies the requirement of withstand voltage of the high pressure in the hydraulic system.

Description of drawings:

Accompanying drawing 1 is a structural representation of the present utility model;

Accompanying drawing 2 is structural representations of tool joint pin in the utility model;

Accompanying drawing 3 is structural representations of female joint in the utility model.

1-tool joint pin among the figure, 2-seal groove, 3-jump ring A, 4-jump ring B, 5-pellet shot from a slingshot, 6-spring, 7-pintle hook lock sheath, 8-seal ring A, 9-spool, 10-boss, 11-spool, 12-seal ring B, 13-female joint, 14-locking trough, 15-pellet shot from a slingshot hole.

Embodiment:

The utility model is described in further detail below in conjunction with accompanying drawing:

By Fig. 1 in conjunction with Fig. 2, shown in Figure 3, a kind of quick self-sealing joint, comprise male and female joint (1,13), spool (9,11), all there is seal groove 2 in tool joint pin 1 internal thread right side, female joint 13 internal threads left side, be that the original tool withdrawal groove in internal thread bottom changes seal groove 2 into, place seal ring B12 in the seal groove 2, seal ring B12 is a teflon oval cross section O type circle, improved the sealing and the voltage endurance capability that are threaded, sealability is better; Female joint 13 left side shoulders cooperate with pintle hook lock sheath 7, and spring 6 is arranged between the two, be that female joint 13 has step, its step bottom is equipped with spring 6, the step of pintle hook lock sheath 7 matches with female joint 13, spring 6 places in the space of the two formation, circumferential uniform several pellet shot from a slingshot holes 15 on spring 6 left side female joints 13 sidewalls, pellet shot from a slingshot hole 15 be built-in with pellet shot from a slingshot 5, the diameter in pellet shot from a slingshot hole 15 is less than pellet shot from a slingshot 5 diameters, therefore, pellet shot from a slingshot 5 parts are protruded at female joint 13 outer walls, its projection contacts with pintle hook lock sheath 7, and corresponding tool joint pin 1 outer wall position has a circle bullet groove 14, and pellet shot from a slingshot 5 can be stuck in 14 li of bullet groove from inboard projection, at this moment, public, female joint (1,13) is locked, is on state; Female joint 13 outside 15 left sides, pellet shot from a slingshot hole of going up are equipped with jump ring B4, jump ring B4 can block pintle hook lock sheath 7, it can not come off from female joint 13, simultaneously, there is boss 10 on the outer wall right side that female joint 13 matches with pintle hook lock sheath 7, pintle hook lock sheath 7 is played position-limiting action, when pintle hook lock sheath 7 is run into boss 10 to the right, pellet shot from a slingshot 5 shifts out a part from pellet shot from a slingshot hole 15, unclamp locking to tool joint pin 1, make tool joint pin 1 can pass in and out female joint 13, and pellet shot from a slingshot 5 is subjected to stopping of inclined-plane in pintle hook lock sheath 7 left sides and can not drop out simultaneously; Female joint 13 inwalls are equipped with several sealed circle A8, can determine the quantity of seal ring according to the size of joint, generally can be 2, seal ring A8 is a rubber oval cross section O type circle, and one of them seal ring A8 is placing female joint 13 conical surface of inboard wall and cylinder intersection, this layout has improved the sealability and the withstand voltage effect of male and female joint (1,13) cooperation place; Male and female joint (1,13) inner spool (9,11) left and right sides is equipped with jump ring A3 respectively, jump ring A3 plays position-limiting action to spool, changed the spacing mode of screw thread of in the past leaning on, do not existed and move back button, axially displaced phenomenon, can be because of the different bad problems of interchangeability that produce of operator yet, improved connection, interchangeability, and long time stability are more reliable.

When needs are connected hydraulic system pipeline, with pintle hook lock sheath 7 to female joint 13 afterbodys (being the right side) push-and-pull, this moment, pellet shot from a slingshot 5 was in unlocking condition, the head of tool joint pin 1 is inserted in the female joint 13 head jacks, and shift tool joint pin 1 onto female joint 13 bottoms, unclamp pintle hook lock sheath 7, pintle hook lock sheath 7 playback under the effect of spring 6, then pellet shot from a slingshot 5 is locked in the bullet groove 14 of tool joint pin 1, with public affairs, female joint (1,13) lock is one, at this moment, public affairs, the spool (9 that female joint (1,13) is inner, 11) to limit position, two spool groups transfer the unlatching on-state to from closed state to mutual push shaft to shift reverse.During dismounting, only need to make pellet shot from a slingshot be in unlocking condition, then with male and female joint (1 to female joint 13 afterbody push-and-pull pintle hook lock sheaths 7,13) separate, and unclamp pintle hook lock sheath 7, and at this moment, male and female joint (1,13) inner separately spool (9,11) the elastic force effect because of spring resets, and is in closed state, realizes each selfsealing.

The utility model has improved connection, interchangeability under the prerequisite that does not change quick loading and unloading, its long time stability are more reliable, satisfy complex working conditions such as the anti-Intermediate High Pressure of hydraulic system, wear-resisting, oil resistant, and, each connection part of self-sealing joint has used the two-stage sealing fast, and sealing effect is better, and is withstand voltage higher, can be applicable to reach in the oil drilling instrument hydraulic system in the hydraulic system in other fields, be widely used.

Claims

1. quick self-sealing joint, comprise public affairs, female joint (1,13), spool (9,11), it is characterized in that: public affairs, female joint (1,13) the internal thread right side, the both sides, left side have the seal groove (2) of placing seal ring B (12) respectively, female joint (13) left side shoulder cooperates with pintle hook lock sheath (7), and spring (6) is arranged between the two, circumferential uniform several are equipped with the pellet shot from a slingshot hole (15) of pellet shot from a slingshot (5) on spring (6) left side female joint (13) sidewall, the outside projection of pellet shot from a slingshot (5) contacts with pintle hook lock sheath (7), and there is bullet groove (14) the corresponding position of tool joint pin (1), and pellet shot from a slingshot hole (15) left side is equipped with jump ring B (4), female joint (13) inwall is equipped with several sealed circle A (8), and it is public, female joint (1,13) inner spool (9, a 11) left side, the right side is equipped with jump ring A (3) respectively.

2. quick self-sealing joint according to claim 1 is characterized in that: one of them seal ring A (8) places female joint (13) conical surface of inboard wall and cylinder intersection.

3. quick self-sealing joint according to claim 1 is characterized in that: seal ring A (8) and seal ring B (12) cross section are ellipse.