CN2390086Y

CN2390086Y - Strong pipe joint structure with expanding flexibility

Info

Publication number: CN2390086Y
Application number: CN 98205372
Authority: CN
Inventors: 李明义
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-06-22
Filing date: 1998-06-22
Publication date: 2000-08-02
Anticipated expiration: 2008-06-22

Abstract

The utility model relates to a strong pipe joint structure with expanding flexibility, which is composed of a matching pipe (1), an inner rubber ring (2), an outer rubber ring (3), a main lock bolt (4), a C type buckling ring (5), a three-ring type pressing leakproof rubber ring (6), a main joint (7), etc. The utility model is inserted on a connecting pipe by making use of the design of the special structure of the main lock bolt (4) and matching with the C type buckling ring (5), and thus the matching pipe (1) can form an expanding and condensing margin capability with suitable length in the main lock bolt. Meanwhile, the matching pipe is hooped by making use of an inner type rubber ring (2) and an outer type rubber ring (3), and the entering of foreign objects and liquid into the matching pipe (1) in pipe burying can be prevented. Therefore, the utility model has the advantages of high sealing performance, and leak proof performance, and is widely used for high heat pipes or building burying pipelines with high vibration.

Description

A kind of have a flexible flexual powerful pipe joint structure

The utility model relates to pipeline and connects class, and particularly a kind of have a flexible flexual powerful pipe joint structure.

At present along with expanding economy, pipeline conveying project increases, be connected each other for cooperating between pipeline corner or pipeline and pipeline, its pipe joint is indispensable element, and its effect of pipe joint is except being connected two connecting tubes, most important be can stand the epistasis tensile stress and in the effect of resistance to compression adaptation and interior pressure strength; Also be a key issue particularly for drawing, turn round, shake considering of iso-stress, next is that leak preventing effect can not be ignored, certainly wanting to reach above-mentioned three big functional conditions is very difficult things, add and draw, turn round or the flexible expansion of naturality and inevitably shake considering of stress, extremely difficult and at a loss what to do especially; In the combination of joint and adapter, not only trouble is bothersome, and the pull resistance between two adapters is also obviously not enough; Sometimes because of the external force burst, produce junction point and split pipe or booster; Secondly exist aging and the not high shortcoming of adaptation for pad, leakage washer etc., still more tension, turn round or the flexible expansion of naturality and the effect that inevitably shakes stress, make pipe joint in pipeline connects, perplex the builder always.

The purpose of this utility model is exactly the shortcoming that exists at the aforementioned tube joint, and a kind of flexible flexual powerful pipe joint structure that has is provided.

The technical solution of the utility model:

According to the purpose of this utility model, a kind of flexible flexual powerful pipe joint structure that has is provided, comprise that mainly pipe arrangement, an inner and outer rubber ring, a master lock spiral shell, a C type is buckled circle, a three-ring type packing leakproof cushion rubber and a major joint element and constituted, wherein, the lock section, top of main lock spiral shell has a lock breechblock, can lock under the pressure of the set internal thread of major joint, and the lock timing then can its bottom institute tool supports edge, support under the pressure of three-ring type packing leakproof cushion rubber, leak preventing effect should be arranged because of the effect that is forced to make a concerted effort reaches; In addition, prolong interior root edge place, can establish one and prolong down little property gradually and the expansion concave surface by main lock spiral shell, the root edge arc portion of expansion concave surface, but just cuff one C type is buckled circle, but by this C type buckle circle then the buckle fastening in the slot rolling of pipe arrangement; At this moment, when pipe arrangement because of extraneous factor produce microgap expand or shake, draw, when contracting, then can be by the set expansion concave surface of root edge in the main lock spiral shell, reaching adequate allowance stretches or the condensation changing capability, and then to make it reach the expansion of naturality and overcome the vibrations coefficient in the mode of dredging be purpose, accomplishes to solve to prevent booster and to split the pipe shortcoming; Inside and outside cushion rubber is the structure of cushion rubber body, is placed in interior cushion rubber in the groove circle of main lock spiral shell head inner edge, and outer cushion rubber is sleeved on the apical margin groove of main lock spiro-locking section, is matched with the effect that pipe arrangement and major joint can reach the shutoff external world; Major joint is the joint of tool female thread structure, and the root edge of internal thread is established the oblique edge of tool one portion, and is placed on it for three-ring type packing leakproof cushion rubber, reaches the effect of compeling to close to solid; Three-ring type packing leakproof cushion rubber has the unique construction design of interior three ring bodies, its be place major joint interior oblique edge all, apical margin then produces the effect that urges by the edge that supports of main lock spiral shell with what lock simultaneously, reaches sealed together and forms the inner high driving fit in three roads simultaneously in the two-way high driving fit function of pipe arrangement and major joint inwall.

Accompanying drawings structure of the present utility model and embodiment:

Fig. 1 is a perspective exploded view of the present utility model.

Fig. 2 analyses and observe for combination of the present utility model and drawing action schematic representation.

Fig. 3 is a local enlarged diagram of the present utility model.

Fig. 4 is another embodiment's schematic representation of the present utility model.

(1) for pipe arrangement, (11) be slot rolling, (2) for interior cushion rubber, (3) for outer cushion rubber, (4) be main lock spiral shell, (41) for support edge, (42) for expansion concave surface, (43) for root edge arc portion, (44) for preceding support portion, (45) for groove circle, (46) for apical margin groove, (5) for the C type is buckled circle, (6) are that packing ring, (10) for roll protuberance for internal thread, (72) for edge portion, (8) for major joint, (71) for three-ring type packing leakproof cushion rubber, (7).

As shown in Figure 1, the utility model is mainly buckled circle (5), three-ring type packing leakproof cushion rubber (6) and major joint elements such as (7) and is constituted by pipe arrangement (1), interior cushion rubber (2), outer cushion rubber (3), main lock spiral shell (4), C type, wherein: the joining part of major joint (7) is provided with internal thread (71), the bottom of internal thread (71) is provided with oblique edge portion (72), and three-ring type packing leakproof cushion rubber (6) is located at edge portion (72); Main lock spiral shell (4) is one to have the lock breechblock of lock section, top, lock breechblock lock is under the pressure of the internal thread (71) of major joint (7), establish its bottom supports edge (41), supporting edge (41) supports under the pressure of three-ring type packing leakproof cushion rubber (6), the interior root edge place of main lock spiral shell (4) offers one and prolongs down little property gradually and expansion concave surface (42), the root edge of expansion concave surface (42) is provided with root edge arc portion (43), root edge arc portion (43) is provided with a C type and buckles circle (5), the C type buckle circle (5) but just the buckle fastening in the slot rolling (11) of pipe arrangement (1), main lock spiral shell (4) head inner edge is provided with groove circle (45), it is built-in with interior cushion rubber (2), and the apical margin of main lock spiral shell (4) lock section is provided with groove (46), and it is built-in with outer cushion rubber (3); Interior cushion rubber (2) and three-ring type packing leakproof cushion rubber (6) cuff are in pipe arrangement (1).Pipe arrangement (1) lies in suitable strong point and rolls and establish a slot rolling (11), and the C type that is beneficial to be positioned at institute of main lock spiral shell (4) root edge arc portion setting-in is buckled circle (5) and fastened; And the structure of main lock spiral shell (4) is one to have the lock breechblock of lock section, top, can lock under the pressure of the set internal thread (71) of major joint (7), when sealed, be with its end all institute's tool support edge (41), support under the pressure of three-ring type packing leakproof cushion rubber (6) simultaneously, reach three roads and compel to close the leakproof special efficacy; Again as shown in Figure 2, interior root edge place at main lock spiral shell (4), offer one and prolong down little property gradually and expansion concave surface (42), and the root edge arc portion (43) of this expansion concave surface (42), just but cuff one C type is buckled circle (5), utilize the C type to buckle circle (5), then but the buckle fastening is in the slot rolling (11) of pipe arrangement (1), make pipe arrangement (1) gradually form its nargin in the expansion concave surface (42) in little property, draw, the variation of contracting, and be limited by the preceding of expansion concave surface (42) and stop, will not deviate from, also do not influence three-ring type packing leakproof cushion rubber (6) simultaneously and compel cooperation usefulness to portion (44) and root edge arc portion (43); Again as shown in Figure 8, set expansion concave surface (42) in main lock spiral shell (4) is the convergence face of little property, therefore embedding is buckled circle (5) due to the C type of pipe arrangement (1), then draw the ability of banding of then having more more forward, under effectively nargin changes, still do not lose the effect that its brute force grasps; Interior cushion rubber (2) is placed in the groove circle (45) of main lock spiral shell (4) head inner edge, and cushion rubber (3) is sleeved on the apical margin groove (46) of main lock spiral shell (4) lock section in addition, when being coupled to pipe arrangement (1) and major joint (7), can reach the effect that the extraneous liquid of shutoff is invaded; And major joint (7) is provided with internal thread (71), and is provided with oblique edge portion (72) in the root edge of internal thread (71), and is placed on it for three-ring type packing leakproof cushion rubber (6), reaches the effect of compeling to close to solid; Three-ring type packing leakproof cushion rubber (6) is interior three ring bodies, place in the oblique edge portion (72) of major joint (7), the top then urges it by the edge (41) that supports of main lock spiral shell (4) to lock, reach sealed together, form the inner high driving fit in three roads in the special energy of the two-way high driving fit of pipe arrangement (1) and major joint (7) inwall.

4 another embodiment of the present utility model is described in conjunction with the accompanying drawings:

As shown in Figure 4, can adopt outer convex type to roll protuberance (10) pipe arrangement (1), buckle the use of circle (5) to get rid of the C type, simultaneously, be to have convenience on main lock spiral shell (4) is made, it is auxiliary also can to use a packing ring (8) instead, and reaches the purpose that urges on an equal basis in three-ring type packing leakproof cushion rubber (6).

No matter the utility model is all better and practical than general joint structure from application target, on the usefulness, on creativeness and the novelty.

Claims

1, a kind of have a flexible flexual powerful pipe joint structure, it includes major joint (7), it is characterized in that, also include interior cushion rubber (2), outer cushion rubber (3), main lock spiral shell (4), the C type is buckled circle (5), three-ring type packing leakproof cushion rubber (6), the joining part of major joint (7) is provided with internal thread (71), the bottom of internal thread (71) is provided with oblique edge portion (72), and three-ring type packing leakproof cushion rubber (6) is located at edge portion (72); Main lock spiral shell (4) is one to have the lock breechblock of lock section, top, lock breechblock lock is under the pressure of the internal thread (71) of major joint (7), establish its bottom supports edge (41), supporting edge (41) supports under the pressure of three-ring type packing leakproof cushion rubber (6), the interior root edge place of main lock spiral shell (4) offers one and prolongs down little property gradually and expansion concave surface (42), the root edge of expansion concave surface (42) is provided with root edge arc portion (43), root edge arc portion (43) is provided with a C type and buckles circle (5), the C type buckle circle (5) but just the buckle fastening in the slot rolling (11) of pipe arrangement (1), main lock spiral shell (4) head inner edge is provided with groove circle (45), it is built-in with interior cushion rubber (2), and the apical margin of main lock spiral shell (4) lock section is provided with groove (46), and it is built-in with outer cushion rubber (3); Interior cushion rubber (2) and three-ring type packing leakproof cushion rubber (6) cuff are in pipe arrangement (1).