CN2208152Y - Low-pressure pipe joint and hose-connector - Google Patents

Abstract

The utility model relates to a low-pressure hard pipe and flexible pipe joint, which is suitable for the butt-joint, changeover joint, and loose joint between rubber pipes with expansion pipe diameters, between the rubber pipe and a valve, or between the rubber pipe and a hard pipe. The utility model is composed of an internal thread sleeve, an external thread pipe sleeve, a ring plunger collar, a rubber ring, and an inner expanding sleeve. One end of the internal thread sleeve is in screw connection with the connecting hard pipe and is sealed with the connecting hard pipe. The other end of the internal thread sleeve goes through the rubber ring, the external thread sleeve, and the ring plunger collar. The connecting rubber pipe of the inner expanding sleeve is plugged on the pipe mouth. The inner expansion outer press connection and sealing can be realized by the screw of the screw threads, and the goal of the loose joint of the utility model can be realized. The utility model is suitable for various water using and liquid using situations, and solves the problems that the existing flexible pipe joint can not be in butt-joint with the low-pressure hard pipe, having the advantages of convenient operation, good sealing performance, wide use, and low cost.

Description

Low-pressure pipe joint and hose-connector

The utility model relates to a kind of low pressure soft or hard pipe joint.Be specially adapted to easily to expand being connected of caliber sebific duct and hard tube, changing-over, loose joint, can make also partly that valve member and easy expansion caliber sebific duct achieve a butt joint, changing-over, loose joint, also can make the rapid abutting joint, changing-over, the loose joint that realize the isometrical or close footpath of certain limit between the sebific duct of easy expander footpath.

Existing low-pressure hose connector, as the disclosed a kind of hose coupling of Chinese patent CN2179519Y, can realize the easily butt joint of expansion footpath sebific duct quickly and easily, changing-over, loose joint, also can make easy expansion caliber sebific duct to minority valve and some vessel, utensil joint, realize the butt joint of soft or hard pipe, changing-over, loose joint, yet, this joint is lived to people, a large amount of low pressure pipelines in work and the activity in production as low-pressure water water pipe commonly used, but are difficult for realizing and expanding docking of caliber sebific duct.

The purpose of this utility model is exactly in order to overcome above-mentioned shortcoming, and on the basis of CN2179519Y patent, improved and a kind of low pressure that provides is used, and can realize easily expanding butt joint, changing-over, loose joint between the caliber sebific duct, be used for easily expanding that the caliber sebific duct docks with the hard tube with pipe thread, the soft or hard pipe joint of changing-over, loose joint.

The purpose of this utility model is achieved in that

The utility model adopts the interior bloated external pressure technology of CN2179519Y disclosed (a kind of low-pressure hose connector), by the internal thread pipe box, external thread sleeve, the ring trim ring, rubber ring and inner expension cap are formed, the riffled tube cover is provided with the rank through hole, two ends respectively are provided with the stomidium greater than through hole, stomidium is provided with fine thread or cylindrical tube Luo Fen, internal thread pipe box partly appearance is made hexagonal prism structure or eight prism-shaped, or make the cylindric of convex tendon broadside or round edge, external thread sleeve is provided with the through hole bigger than internal thread pipe box, outer surface is provided with and corresponding fine thread of internal thread pipe box or straight pipe thread, and outer surface also is provided with hexagonal or anistree shape spanner portion and is provided with rubber ring between the end face of the inner expension cap of easily expanding the setting of caliber sebific duct end head and large end face and internal thread pipe box through hole.

The ring trim ring is a cyclic loop, available spoon circle, also available annulus, also available with in have circular hole and smooth curved surface to join the plane annular circle.Rubber ring is annulus or is the plane ring.

Inner expension cap is that through-hole diameter can reach the hollow plug sleeve of waiting to connect the sebific duct nominal bore diameter, and screw thread can not be made at the taper position of its appearance, also can make incomplete thread or system groove, also can not make groove.

When the utility model uses, with internal thread pipe box one end with wait that connect hard tube is threaded in advance, another stomidium reenters puts rubber ring, then, make the overcoat external thread sleeve touch rubber ring again with the sebific duct termination that is connected that ring trim ring, the mouth of pipe are plugged with inner expension cap, subsequently, the translation external thread sleeve touches mutually with inner screw sheath, screw Luo Fen again, tighten and get final product.

The utility model compared with prior art has following advantage:

1, can realize being threaded with the pipeline that pipe thread is arranged easily, can achieve a butt joint changing-over, loose joint with easy expansion footpath sebific duct apace.2, the ring trim ring and the inner expension cap of conversion use can be realized the easy expansion sebific duct of different tube diameters and connect hard tube changing-over, loose joint in certain model circle.3, the inner expension cap of conversion use can make the identical part of external diameter easily expand the caliber sebific duct and connect hard tube and realize changing-over, loose joint.4, main part internal thread pipe box can be done general hard tube pipe fitting use, remaining external thread sleeve, ring trim ring, rubber ring can become an assembly with inner expension cap, make some easily expand the caliber sebific duct and can achieve a butt joint loose joint with the valve member with external thread sleeve respective threaded, appliance interface.When 5, being not used in hard tube and connecting, in the stomidium that hard tube connects, go into to put corresponding rubber ring, can make have the corresponding outside thread valve member of this hole internal thread, the utensil joint achieves a butt joint with expansion caliber sebific duct, changing-over, loose joint.When 6, being not used in the hard tube connection, the active assembly of selecting for use corresponding external thread sleeve, ring trim ring, rubber ring and inner expension cap to form, can make some easily expansion caliber sebific duct achieve a butt joint at hard tube connecting end and internal thread pipe box, changing-over, loose joint, thereby, realize different cultivars or same kind, different tube diameters or with the butt joint of easy expansion caliber sebific duct, changing-over, the loose joint of caliber.7, if being connected the utility model earlier with the straight-through male connection with respective tube screw thread, internal thread pipe box hard tube connecting end just can realize that pipeline close or equal caliber is connected with more valve member or appliance interface with corresponding connection interior threaded hole, thereby, make easy expansion caliber sebific duct realize the connection of close latus rectum or the connection of identical latus rectum with connection valve member or appliance interface.8, the soft or hard connecting end of internal thread pipe box is used in conversion, and the utility model then can become the reducing flexible pipe hard pipe joint that low pressure is used.

Bottom reaches embodiment in conjunction with the accompanying drawings, and the utility model is described in further detail:

Fig. 1 is the close latus rectum hard tube of the utility model and easily expands the embodiment that the caliber sebific duct achieves a butt joint.

Fig. 2 system the utlity model has the utensil joint (or valve member joint) of closely-pitched outside thread or outer cylinder pipe thread and docks embodiment with the nearly footpath of easily expanding the caliber sebific duct.

Fig. 3 is the embodiment that the utility model is realized the butt joint of different tube diameters sebific duct, loose joint.

Embodiment 1.

Referring to Fig. 1, one end has the internal thread pipe box (1) of six prismatic profiles, the cylindrical thread in its left end hole is realized being threaded and sealing with the pipe thread that is connected hard tube (7), in the right-hand member hole, through hole right side side has rubber ring (4), along the termination mouth of pipe of the little end plug of inner expension cap (5) that connects at sebific duct to be connect (6), outer surface in sebific duct to be connect (6) termination, be with the external thread sleeve (2) of circular ring type ring trim ring (3) and octagon spanner portion, rotation external thread sleeve (2), make the rotation of whorl side end face and the translation of compressing circular ring type ring trim ring (3) of external thread sleeve, thereby inner expension cap (5) outer cone surface is compressed with the internal face that is connected sebific duct (6), realize isometrical connected sum sealing, simultaneously, rubber ring (4) between the through hole right side of the through hole large end face of inner expension cap (5) and internal thread pipe box (1) is compressed, realization inner expension cap (5) is connected with the through hole of rubber ring (4) and seals, the through hole of realization rubber ring (4) is connected with the through hole of internal thread pipe box (1) and seals, thereby external thread sleeve (2) and internal thread pipe box (1) are tightened and then are connected hard tube and are connected sebific duct and realize that the pipeline of close bore is communicated with.

In the docking operation of hard tube and flexible pipe, hard tube (7) connects internal thread pipe box of the present utility model (1) in advance, flexible pipe (6) does not rotate in whole connection procedure, the loose joint between the soft or hard pipe by the outer cylinder screw thread screw and external thread sleeve (2) and ring trim ring (3) between slide and the translation that produces realizes.

Embodiment 2.

Referring to accompanying drawing 2, this example is with the difference of Fig. 1 example, a. ring trim ring (3) the selecting and purchasing spoon circle formula of using in this example, and what use in the example 1 is circular ring type, b. the hard tube in this example is to have the outer cylinder screw thread and end face is smooth and joint that mouth of pipe wall is thicker, and what use in the example 1 is general hard tube, and this example of c. has increased a rubber ring (4).

Though the ring trim ring is used instead in this example, to the not influence of loose joint of flexible pipe.

In this example, the stomidium of the hard tube connecting end of internal thread pipe box of the present utility model (1), in put rubber ring (4), making internal thread pipe box (1) carry out screw thread with utensil joint or valve member joint (8) again screws, rely on rubber ring (4) to realize sealing, sebific duct connection subsequently, loose joint and example 1 are together.

Embodiment 3.

Referring to Fig. 3, used two kinds of threading paths and spanner portion that the external thread sleeve (2) of different profiles (hexagonal and anise) is arranged, the ring trim ring (3) that has used two kinds of patterns (spoon circle formula and circular ring type) and internal diameter not to wait has used two kinds to have the inner expension cap (5) of certain difference to use the rubber ring (4) of two different inner diameters with the precedent profile.

In this example, two sebific ducts all can realize separately with the docking of internal thread pipe box (1), loose joint, method as embodiment 1.

The utility model uses with easy expansion caliber sebific duct and can make easy expansion caliber sebific duct realize being threaded with more low pressure hard tube easily, and loose joint also can realize the changing-over in the certain limit, also can make some valve members or utensil obtain better function.

The utility model can synthesize life or the work or the producer goods with some valve member or set of instruments, as tailrace, storage water (or liquid) device etc.

The utility model can be widely used in low pressure storage liquid flow field institute, particularly water domestic water production scene, work and the shop institute that manages, the service of mobile water, recreational facilities etc.

Claims (3)

1, a kind of low pressure soft or hard pipe joint, by the internal thread pipe box, external thread sleeve, the ring trim ring, rubber ring and inner expension cap are formed, it is characterized in that, internal thread pipe box (1) is provided with the rank through hole, two ends respectively are provided with fine thread or straight pipe thread, external thread sleeve (2) appearance is provided with and corresponding fine thread of internal thread pipe box or straight pipe thread, and outer surface also is provided with hexagonal or anistree shape spanner portion and inner expension cap (5) is set and encircles trim ring (3) and be provided with rubber ring (4) between the end face of inner expension cap (5) large end face internal thread pipe box through hole at easy expansion caliber sebific duct end head.

2, joint according to claim 1 is characterized in that, ring trim ring (3) profile has circular hole and the plane annular circle that has smooth curved surface to join for the spoon circle or for the annulus circle or in being.

3, joint according to claim 1 is characterized in that, inner expension cap (5) has through hole in being, the plug sleeve of taper body surface is arranged outward.