CN201237039Y

CN201237039Y - Detachable fast joint

Info

Publication number: CN201237039Y
Application number: CNU2008201133585U
Authority: CN
Inventors: 韩贤文
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-08-08
Filing date: 2008-08-08
Publication date: 2009-05-13
Anticipated expiration: 2018-08-08

Abstract

The utility model relates to the technical field of pipe connection, i.e. a detachable quick joint. The detachable quick joint comprises a joint main body; a communicated expanded mouth formed on at least one passage exit on the joint main body; a rubber sealing ring, a location ring, a clamping ring and a guide ring, which are sequentially arranged in the expanded mouth; and barbs formed in the inner ring of the clamping ring; wherein, the guide ring extends outside the expanded mouth. The detachable quick joint is characterized in that the clamping ring has a tapered structure; a guide cone is formed at one end of the guide ring; the outer wall of the guide cone keeps contact with the barbs in the inner ring of the tapered clamping ring; a bush is arranged among the location ring, the clamping ring, the guide ring and the expanded mouth; a liner ring with an annular convex ring at the head thereof is arranged in the guide ring; the outer diameter of the convex ring of the liner ring is identical to the inner diameter of the guide ring; and a gap for allowing the wall of a duct to be inserted therein is reserved between the outer diameter of the liner ring and the inner diameter of the guide ring. The detachable quick joint can be used as the connector for quickly connecting or detaching various kinds of ducts, and has the advantages of easy maintenance and replacement and good sealing performances.

Description

Removable rapid pipe joint

Technical field

The utility model relates to pipe fitting interconnection technique field, refers in particular to a kind of removable rapid pipe joint that various pipelines such as water route, gas circuit connect usefulness that is used for.

Background technique

In various pipelines (as water route, gas circuit etc.) connect, layout and installation for the ease of pipeline, often use pipe joint to realize turning to and being connected, its form is a lot, as curved logical (as 45 °, 90 ° etc.), straight-through, threeway etc., it is isometrical that each passage can be made into, and also can be made into reducing, what application at present was wider from manufactured materials is copper tube joint, and the Placement of existing copper pipe joint has welding type, clamp-press type, thread type etc.But welding type, the manufacturing of clamp-press type and thread type joint and installation are all inconvenient, so someone has invented plug type quick coupler, the patent No. is ZL 200720112409.8, its concrete structure is: joint body is arranged, the joint body two ends have joint enlarging position, put into Y shape rubber seal in the joint enlarging position successively, positioning ring, the chucking circle of making by the corrosion resistant plate punching press, guide collar, positioning ring will tighten circle and Y shape rubber seal is separated, in joint enlarging position, form a special seal ring cavity, the chucking circle is V-shaped, and V-ring inwardly has barb.When installation pipeline, as long as hard tube (port needs deburring) or flexible pipe are directly inserted in the copper pipe rapid pipe joint, the chucking circle can hook conduit, prevents that conduit is drawn out, and raises the efficiency greatly.But it still exists defective: the first, in the time will dismantling conduit,, pull out more outward that hook must be tight more on the contrary because the conduit direction of extracting is opposite with barb, and the back just can't be dismantled so in a single day conduit is in place, and maintenance, replacing bother; The second, Y type rubber seal, positioning ring, chucking circle and guide collar are directly installed in the enlarging position, and are plane contact between positioning ring and chucking circle and chucking circle and the guide collar, be unfavorable for installation, location, and volume are big.

Summary of the invention

It is a kind of detachable that the purpose of this utility model provides, and helps maintenance, changes, and install, locate removable quickly and easily rapid pipe joint.

The purpose of this utility model is achieved in that removable rapid pipe joint, comprise joint body, have at least a channel exit to be shaped on the enlarging that communicates on the joint body, rubber seal is installed in the enlarging successively, positioning ring, chucking circle and guide collar, be shaped on barb in the interior ring of chucking circle, guide collar extends to outside the enlarging, it is characterized in that described chucking circle is tapered, one of guide collar is shaped on starting taper, the outer wall of starting taper contacts with the barb of ring in the taper chucking circle, at positioning ring, between chucking circle and guide collar and the enlarging lining is housed, being provided with head within guide collar has the interior lining ring of annular convex ring, the external diameter of the bulge loop of interior lining ring is identical with the internal diameter of guide collar, is reserved with a gap that is inserted into the tube wall of conduit between the external diameter of interior lining ring and the internal diameter of guide collar.

One of above-mentioned positioning ring is shaped on inner conical surface, and inner conical surface contacts with the outer wall of chucking circle.

Above-mentioned rubber seal is an O-ring seals.

Above-mentioned interior lining ring is made with stainless steel material or copper material or plastic materials.

The compared with prior art outstanding advantage of the utility model is:

1, the utility model can be realized fast assembling-disassembling, the pushing guide collar, and the starting taper of guide collar can strut the barb of chucking circle, makes barb break away from conduit, and conduit can be extracted easily, realizes detachable function, helps the recycling of joint and to the replacing or the maintenance of pipeline;

2, good airproof performance of the present utility model, because interior lining ring is made with stainless steel material, copper material or rigid plastics, when conduit is inserted of the present utility model between the internal diameter of the external diameter of lining ring and guide collar after, can under hydraulic pressure is the situation of 45at, keep sealing, than NBS require pipe fitting under the hydraulic pressure of 13at, to keep sealing high.

3, resistance to high temperature of the present utility model is good: if the conduit that is linked is a flexible pipe, under the environment at high temperature, common flexible pipe is under the situation of high temperature deformation, because interior lining ring and rubber seal are to the squeezing action of flexible pipe, make the flexible pipe of joint indeformable, can keep excellent sealing performance.

4, the utility model can be made into the pipe fitting joint with different connection characteristics with the Connecting format cooperation of various terminal, uses and the multiple occasion that is connected, and is applicable to as the jointing of various pipelines and applies.

Description of drawings

Fig. 1 is the sectional view of the removable rapid pipe joint of the utility model;

Fig. 2 is the exploded view of the removable rapid pipe joint of the utility model;

Fig. 3 is the side that connects fast of spigot and socket type of the present utility model and assembling schematic representation after conduit is connected.

Embodiment

With specific embodiment the utility model is described further below, referring to Fig. 1-3:

Removable rapid pipe joint, comprise joint body 1, have at least a channel exit to be shaped on the enlarging 2 that communicates on the joint body 1, rubber seal 3 is installed in the enlarging 2 successively, positioning ring 4, chucking circle 5 and guide collar 6, be shaped on barb 51 in the interior ring of chucking circle 5, guide collar 6 extends to outside the enlarging 2, it is 5 tapered to it is characterized in that described chucking encloses, one of guide collar 6 is shaped on starting taper 61, the outer wall of starting taper 61 contacts with the barb 51 of ring in the taper chucking circle 5, at positioning ring 4, between chucking circle 5 and guide collar 6 and the enlarging 2 lining 8 is housed, being provided with head within guide collar 6 has the interior lining ring 10 of annular convex ring 101, the external diameter of the bulge loop 101 of interior lining ring 10 is identical with the internal diameter of guide collar 6, is reserved with a gap that is inserted into the tube wall of conduit 12 between the internal diameter of the external diameter of interior lining ring 10 and guide collar 6.

Said structure of the present utility model, mainly be that guide collar 6 is installed in the chucking circle, compact structure, and one of guide collar 6 is shaped on starting taper 61, barb 51 cone match of the outer wall of starting taper 61 and taper chucking circle 5, be easy to guiding, because guide collar 6 extends to outside the enlarging 2, so as long as guide collar 6 is pressed inwards, the starting taper 61 of guide collar 6 will strut the barb 51 of chucking circle 5, makes barb 51 break away from conduit 12, and at this moment conduit 12 just can be pulled out easily, realize detachable function, help changing joint or maintenance.

One of above-mentioned positioning ring 4 is shaped on inner conical surface 41, and inner conical surface 41 contacts with the outer wall of chucking circle 5, and during dismounting, the starting taper 61 of guide collar 6 makes barb 51 strut along the conical surface 41 of positioning ring 4, overexerts when preventing to extract conduit 12 to cause barb 41 fractures.

Above-mentioned rubber seal 3 is O-ring seals, meeting crush seal circle 3 behind the conduit 12 insertion joints, thus the sealing of assurance conduit 12 and joint body 1 selects for use O-ring seals more economical, practical.

In actual product, joint body 1 can be made into straight-through (as shown in Figure 1), also can be made into curved logical, threeway, four-way, five-way etc., have at least a channel exit to be shaped on the enlarging 2 that communicates on the joint body, enlarging 2 adopts spigot and socket type to connect fast, (joint body as shown in Figure 1 is a reducing coupling joint and other channel exit can adopt flat mouth to be threaded, a channel exit adopts spigot and socket type to connect fast, another channel exit is made flat mouthful 9, and flat mouthful is shaped on internal thread 91 so that be spirally connected with conduit), be welded to connect, card presses connection to wait traditional approach to connect; Certainly, all channel exits on the joint body also can all adopt above-mentioned spigot and socket type to connect fast.

The foregoing description only is one of preferred embodiment of the present utility model; be not to limit practical range of the present utility model with this; so: all equivalences of doing according to shape of the present utility model, structure, principle change, and all should be covered by within the protection domain of the present utility model.

Claims

1, removable rapid pipe joint, comprise joint body, have at least a channel exit to be shaped on the enlarging that communicates on the joint body, rubber seal is installed in the enlarging successively, positioning ring, chucking circle and guide collar, be shaped on barb in the interior ring of chucking circle, guide collar extends to outside the enlarging, it is characterized in that described chucking circle is tapered, one of guide collar is shaped on starting taper, the outer wall of starting taper contacts with the barb of ring in the taper chucking circle, at positioning ring, between chucking circle and guide collar and the enlarging lining is housed, being provided with head within guide collar has the interior lining ring of annular convex ring, the external diameter of the bulge loop of interior lining ring is identical with the internal diameter of guide collar, is reserved with a gap that is inserted into the tube wall of conduit between the external diameter of interior lining ring and the internal diameter of guide collar.

2, removable rapid pipe joint according to claim 1 is characterized in that: one of described positioning ring is shaped on inner conical surface, and inner conical surface contacts with the outer wall of chucking circle.

3, removable rapid pipe joint according to claim 1, it is characterized in that: described rubber seal is an O-ring seals.

4, removable rapid pipe joint according to claim 1 is characterized in that: lining ring is made with stainless steel material or copper material or plastic materials in described.