CN201772164U

CN201772164U - Novel pipe joint

Info

Publication number: CN201772164U
Application number: CN2010205399937U
Authority: CN
Inventors: 郑广桐; 朱张泉; 蒋利荣; 傅建国; 宣为民; 余铁均; 赵莹; 湛世强; 金淼龙
Original assignee: Zhejiang Hailiang Co Ltd
Current assignee: Zhejiang Copper Processing Research Institute Co., Ltd.
Priority date: 2010-09-17
Filing date: 2010-09-17
Publication date: 2011-03-23
Anticipated expiration: 2020-09-17

Abstract

The utility model discloses a novel pipe joint which comprises the following components: a joint body which is provided with a socket joint part; and a lock ring which is provided in the socket joint. The lock ring comprises an annular body. A plurality of latches are arranged along the inner ring surface of the annular body. The plurality of latches are respectively bent in a pipe insertion direction. The socket joint part is also internally provided with a positioning ring. The annular body of the lock ring is fixed on the positioning ring. While a pipe connection function is realized, a more stable and reliable grasping force for the pipe can be generated for preventing falling of the pipe.

Description

A kind of new tube joint

Technical field

The utility model relates to a kind of direct insertion pipe joint, belongs to pipe fitting interconnection technique field.

Background technique

Traditional pipe fitting Placement is broadly divided into that silk mouthful connects, is welded to connect, the flange connection.But above-mentioned Placement is all to need to use assistant tool and accessory, brings inconvenience to practice of construction.For this reason, existing pipe fitting connects the pipe joint forms that adopt more, the notched snap ring of normal employing utilizes its radial contraction to tighten pipe fitting in known pipe joint, perhaps adopt taper cutting ferrule structure, screw cutting ferrule by external nut and make it radially tighten up the chucking pipe fitting, the pipe joint of said structure exists complex structure, cost height, uses shortcomings such as inconvenience, the surperficial easy scuffing of pipe fitting.China national Patent Office discloses the patent No. in 1994-10-26 and has adopted the structure of preventing ring for the patent that " 93226411.5 ", name are called " pipe joint ", preventing ring is the gear ring of a ring-type, when pipe fitting inserts, thereby prevent the stop claw stress deformation on the ring to produce impacting force chucking pipe fitting, but the part that relates in this pipe joint is more, makes troubles to assembling; Prevent ring and lead ring when assembling, to have error and exist, thereby produce an assemblage gap on the axial direction, when applying on the pipe fitting, prevent ring in above-mentioned gap, to be offset, to reverse, cause pipe fitting to come off along the axial pulling force of pipe fitting.

Summary of the invention

Problem to be solved in the utility model is exactly to provide a kind of new tube joint at the defective that exists in existing pipeline connection, the installation process, when realizing the connecting pipeline effect, can produce more reliable and stable grasp to pipe fitting, come off to prevent pipe fitting.

For solving the problems of the technologies described above, the utility model adopts following technological scheme: a kind of new tube joint, comprise the joint body that has female part, be located at the lock ring in the female part, described lock ring comprises annular body, be distributed with some latches along the annular body inner ring surface, described some latches all to the bending of pipe fitting direction of insertion, is characterized in that: comprise that also one is fixed on the positioning ring on the female part inwall, the annular body of lock ring is fixed on the positioning ring.

Further, the inner ring surface of described positioning ring is set as and the corresponding pressure-bearing of latch bending shape inclined-plane.

Further, the opening end of described female part is designed to half bag mouth structure, partly wraps mouth structure and is provided with and separates lock ring, and the described lock ring of separating comprises with the active slide part that is connected of the opening end of female part, is used for latch is pushed away the lock section of separating on pipe fitting surface.

Further, the described lock section of separating is designed to the ring-type cone, the inner of the corresponding latch of the miner diameter end of this ring-type cone, and the bigger diameter end of ring-type cone and the opening end of female part offset and prevent to separate lock ring and deviate from joint body.

Further, also be provided with in the described female part with positioning ring and be up and down corresponding gasket ring, be embedded with O-ring seals between gasket ring and positioning ring.O-ring seals was compressed after pipe fitting inserted female part, and the resiliently deformable of O-ring seals has not only realized sealing, can also assist lock ring that pipe fitting is played further fixation.

The beneficial effects of the utility model: compare existing pipe joint, structure of the present utility model is simple relatively, and part is few, and cost is low; In practice of construction, pipe fitting is inserted the utility model, send out by the elastic strain chucking copper pipe of latch on the lock ring and prevent that it from coming off, cooperate the sealing that guarantees the joint with copper pipe by O-ring seals; Lock ring is to be fixed on the positioning ring, even having under the external force effect, lock ring easily axial dipole field can not take place yet, and has more reliable and stable grasp; During the dismounting pipe fitting, separate lock ring latch is pushed away the pipe fitting surface, and it is pushed against on the pressure-bearing inclined-plane of positioning ring, hinder its rotation, prevent the lock ring counter-rotating, make the internal diameter of lock ring can in use not enlarge gradually, improved working life.

Description of drawings

Below in conjunction with accompanying drawing the utility model is done a progressive explanation:

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

Fig. 2 is the floor map of lock ring;

Fig. 3 is the structural representation of the utility model when socket pipe member;

Fig. 4 is the view of the utility model lock ring when release.

Embodiment

As shown in Figures 1 to 4, the utility model is a kind of new tube joint, comprise the joint body 1 that has female part 2, be located at the lock ring 3 in the female part 2, described lock ring 3 comprises annular body 31, be distributed with some latches 32 along annular body 31 inner ring surfaces, described some latches 32 are all to pipe fitting 8 direction of insertion bendings, comprise that also one is fixed on the positioning ring 4 on female part 2 inwalls, the annular body 31 of lock ring 3 is fixed on the positioning ring 4, fixing mode can be directly to be pressed into or to rivet, so, even having under the external force effect, axial dipole field can not take place in lock ring 3 easily yet, has more reliable and stable grasp.

The inner ring surface of positioning ring 4 is set as and the corresponding pressure-bearing of latch 32 bending shapes inclined-plane 41, and on pipe fitting 8 direction of insertion, the angle of inclination on this pressure-bearing inclined-plane 41 generally is less than the bending angle of latch 32; The opening end of female part 2 is designed to half bag mouth structure, partly wraps mouth structure and is provided with and separates lock ring 7, and the described lock ring 7 of separating comprises with the active slide part that is connected 71 of the opening end of female part 2, is used for separating lock section 72 with what latch 32 pushed away pipe fitting 8 surfaces; Separate lock section 72 and be designed to the ring-type cone, the inner of the corresponding latch 32 of the miner diameter end of this ring-type cone, the opening end of the bigger diameter end of ring-type cone and female part 2 offsets and prevents to separate lock ring 7 and deviate from joint body 1; On pipe fitting 8 direction of insertion, the tapering of ring-type cone generally is less than the angle of inclination on pressure-bearing inclined-plane 41, and being convenient to separate lock section 72 can be with latch 32 pushing and pressing on pressure-bearing inclined-plane 41; As outside tension during in pipe fitting 8, latch 32 also can to pipe fitting 8 deviate from the direction displacement, but, limited the rotation of lock ring 3 because the annular body 31 of lock ring 3 has been fixed on the positioning ring 4, prevent that it from reversing.As when dismantling pipe fitting 8; separating lock ring pushes away for 7 times latch 32 is pushed away pipe fitting 8 surfaces; remove the blocking state of 32 pairs of pipe fittings 8 of latch; and can be directly when separating lock ring and pushing away for 7 times with latch 32 pushing and pressing on the pressure-bearing inclined-plane 41 of positioning ring 4; not only can protect lock ring 3, make the internal diameter of lock ring 3 can in use not enlarge gradually, improve its working life; can guarantee that also pipe fitting 8 can be drawn out smoothly, and not influence the structure in the pipe joint.

Also be provided with in female part 2 with positioning ring 4 and be up and down

corresponding gasket ring

6,4 of gasket ring 6 and positioning rings are embedded with O-ring seals 5.Pipe fitting 8 inserts female part 2 back O-ring seals and is compressed, and the resiliently deformable of O-ring seals has not only realized sealing, can also assist 3 pairs of pipe fittings 8 of lock ring to play further fixation.

Shown in the accompanying drawing only for conveniently explaining and illustrate feature of the present utility model and advantage, general pipe joint all is provided with at least two female part 2, and this female part 2 also can be straight pipe type or the bent tube type with bending angle, so that be designed to the pipe joint of various structures such as threeway, four-way.

Claims

1. new tube joint, comprise the joint body (1) that has female part (2), be located at the lock ring (3) in the female part (2), described lock ring (3) comprises annular body (31), be distributed with some latches (32) along annular body (31) inner ring surface, described some latches (32) are all to pipe fitting (8) direction of insertion bending, it is characterized in that: comprise that also one is fixed on the positioning ring (4) on female part (2) inwall, the annular body (31) of lock ring (3) is fixed on the positioning ring (4).

2. a kind of new tube joint according to claim 1 is characterized in that: the inner ring surface of described positioning ring (4) is set as and latch (32) bending shape corresponding pressure-bearing inclined-plane (41).

3. a kind of new tube joint according to claim 1 and 2, it is characterized in that: the opening end of described female part (2) is designed to half bag mouth structure, partly wrap mouth structure and be provided with and separate lock ring (7), the described lock ring (7) of separating comprises with the active slide part that is connected of the opening end of female part (2) (71), is used for separating lock section (72) with what latch (32) pushed away pipe fitting (8) surface.

4. a kind of new tube joint according to claim 3, it is characterized in that: the described lock section (72) of separating is designed to the ring-type cone, the inner of the corresponding latch of the miner diameter end of this ring-type cone (32), the opening end of the bigger diameter end of ring-type cone and female part (2) offset and prevent to separate lock ring (7) and deviate from joint body (1).

5. a kind of new tube joint according to claim 1 and 2 is characterized in that: also be provided with in the described female part (2) with positioning ring (4) and be up and down corresponding gasket ring (6), be embedded with O-ring seals (5) between gasket ring (6) and positioning ring (4).