CN216590472U - Joint - Google Patents

Abstract

The utility model discloses a joint for connecting a threaded hose, which comprises an inserting core, a sleeve and a screw cap. The insert core is provided with an inserting part and a propping part, and the propping part forms a first flange which is propped against the end wall of the inner tube; the sleeve is axially provided with a sleeve body and a connecting part which are mutually connected into a whole, and the sleeve body is sleeved on the part of the inner pipe extending out of the outer pipe and is abutted against the first flange; the connecting part comprises a plurality of expansion parts, and the expansion parts are suitable for expansion and are provided with internal threads matched with the external threads of the outer pipe; the nut is rotationally sleeved outside the sleeve and compresses the expansion part, and is also axially clamped with the sleeve body; the part of the sleeve extending out of the sleeve is provided with internal threads. The joint has fewer assembling steps and simpler assembly, and the sleeve is sleeved outside the double-buckle pipe and has no influence on the inner diameter of the double-buckle pipe, so that the inner diameter of the inner pipe is not influenced, namely the water passing amount through the inner pipe is larger.

Description

Joint

Technical Field

The utility model relates to the field of bathrooms, in particular to a joint.

Background

Threaded hose includes inner tube and two knot pipes, current threaded hose's joint includes the copper core, connect, cover and nut just, during the assembly, earlier with the nut movable sleeve on the two knot pipes of having worn the inner tube, establish the tip at two knot pipes just with the cover again, insert in two knot pipes and with two knot pipe spiro union the screwed portion that connects, connect and two knot pipe and just overlap and combine together, copper core insert the inner tube again and compress tightly with pressing the pipe can promptly, wherein just overlap by nut and two knot pipe and copper core common axial spacing, whole assembling process is complicated, and because connect and insert in two knot, make the inner tube receive the extrusion at this part of two knot pipes, the water capacity reduces, the use to the user has caused the influence.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to overcoming the above-mentioned drawbacks or problems of the related art and providing a coupling which is easily assembled with a threaded hose and allows the threaded hose to have a large amount of water passing therethrough.

In order to achieve the purpose, the utility model adopts the following technical scheme:

technical solution one, a joint for connecting a threaded hose, the threaded hose includes an inner tube and an outer tube having an external thread, the inner tube extends out of the outer tube, the joint includes: the inserting core is provided with an inserting part and a propping part which are connected into a whole along the axial direction, the inserting part is inserted into the part of the inner pipe extending out of the outer pipe and is in interference fit with the inner pipe, and the propping part extends out of the inner pipe and forms a first flange which is propped against the end wall of the inner pipe; the sleeve body and the connecting part are axially arranged on the sleeve body and are connected into a whole, and the sleeve body is sleeved on the part of the inner pipe extending out of the outer pipe and is abutted against the first flange; the connecting part comprises a plurality of expansion parts, and the expansion parts are suitable for expansion and are provided with internal threads matched with the external threads of the outer pipe; the nut is rotatably sleeved outside the sleeve body, compresses the expansion part and is also axially clamped with the sleeve body; the part of the sleeve extending out of the sleeve is provided with internal threads.

Based on the technical scheme I, the sleeve is further provided with the technical scheme II, in the technical scheme II, the expansion parts are distributed along the circumferential direction, and the expansion parts extend from the end part of the sleeve body along the axial direction.

Based on the second technical scheme, the nut is further provided with a third technical scheme, in the third technical scheme, one end, far away from the sleeve body, of the expansion part is provided with a clamping block in a protruding mode along the radial direction, and a clamping groove matched with the clamping block is formed in the inner wall of the nut.

Based on technical scheme three, still be equipped with technical scheme four, in technical scheme four, the cover body is kept away from the one end of connecting portion and is equipped with the second flange with first flange butt along radial outside protrusion, the nut inner wall still is equipped with the butt face with second flange butt.

Based on the fourth technical scheme, the fixture is further provided with a fifth technical scheme, and in the fifth technical scheme, the end face of one end, far away from the second flange, of the fixture block is an inclined face inclining outwards in the radial direction.

Based on the fifth technical scheme, the device is further provided with a sixth technical scheme, and in the sixth technical scheme, the ferrule and the sleeve are both made of plastic materials.

Based on the sixth technical scheme, a seventh technical scheme is further provided, and in the seventh technical scheme, the inner diameter of the sleeve body is smaller than that of the connecting part.

As can be seen from the above description of the present invention, the present invention has the following advantages over the prior art:

1. in the technical scheme, during the assembly, earlier with the nut movable sleeve outside the outer tube that has inserted the inner tube, overlap the sleeve pipe outside the outer tube again and make expansion portion and outer tube spiro union, still make the cover body and nut along axial joint, insert the part that the outer tube stretches out the outer tube with the insertion portion of lock pin again and compress tightly with the compactor, the first flange of lock pin stretches out outer tube and the first flange of sheathed tube cover body butt promptly, the sleeve pipe is because with the nut along axial joint and with first flange butt, after the assembly, the sleeve pipe is fixed at the ascending position of axial, the nut compresses tightly the sheathed tube expansion portion and makes expansion portion and the inseparable spiro union of outer tube, can not become flexible, the sheathed tube cover body is pressed from both sides tightly by lock pin and nut inside and outside, therefore can not become flexible in the footpath also. Therefore, by adopting the technical scheme, the assembly steps of the joint and the threaded hose are less, the assembly is simpler, and the sleeve is sleeved outside the double-buckle pipe, so that the inner diameter of the double-buckle pipe is not influenced, the inner diameter of the inner pipe is not influenced, and the water passing amount through the inner pipe is larger.

2. In the second technical scheme, the expansion parts are arranged along the circumferential direction and extend along the axial direction from the end part of the sleeve body, so that the structure is simple and practical.

3. In the third technical scheme, the expansion part is provided with the clamping block, the inner wall of the nut is provided with the clamping groove matched with the clamping block, the clamping block is easy to assemble in cooperation with the clamping groove, the structure is stable, and production and processing are facilitated.

4. In the fourth technical scheme, the sleeve body is provided with a second flange which is abutted against the first flange, so that the contact area is larger, and the sleeve is more stable in the axial direction; the nut sets up the butt face with the butt of second flange, and like this, the second flange still presss from both sides in the axial and locates between butt face and the first flange, further makes the sleeve pipe more stable in the ascending position of axial to make the structure of whole hose and joint more firm.

5. In the fifth technical scheme, the end face, far away from one end of the second flange, of the clamping block is an inclined plane inclined outwards in the radial direction, so that the clamping block can conveniently enter the clamping groove in the axial direction, and the assembly is more convenient.

6. In the sixth technical scheme, the ferrule and the sleeve are both made of plastic materials, so that the cost is low, and the toughness of the sleeve is better.

7. In the seventh technical scheme, the inner diameter of the sleeve body is smaller than that of the connecting part, so that the end face of the sleeve body facing the outer tube is abutted to the end wall of the corresponding outer tube, the sleeve is further more stable in the axial direction, and the sleeve body is conveniently clamped on the nut and the ferrule.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is an exploded cross-sectional view of an embodiment of the present invention;

FIG. 2 is a schematic view of a bushing in accordance with an embodiment of the present invention;

fig. 3 is a cross-sectional view of an embodiment of the present invention.

Description of the main reference numerals:

a ferrule 10; an insertion portion 11; a backstop latch 111; a butting portion 12; a first flange 121; a sleeve 20; a sheath body 21; a second flange 211; a connecting portion 22; an expansion part 221; a latch 222; a ramp 2221; a nut 30; a card slot 31; an abutment surface 32; an inner tube 40; an outer tube 50.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are presently preferred embodiments of the utility model and are not to be taken as an exclusion of other embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the claims, the specification and the drawings of the present invention, unless otherwise expressly limited, the terms "first", "second" or "third", etc. are used for distinguishing between different items and not for describing a particular sequence.

In the claims, the specification and the drawings of the present invention, unless otherwise expressly limited, all directional or positional relationships indicated by the terms "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," "counterclockwise," and the like are based on the directional or positional relationships indicated in the drawings and are used for convenience in describing the present invention and for simplicity in description, but do not indicate or imply that the device or element so indicated must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the present invention.

In the claims, the description and the drawings of the present application, unless otherwise expressly limited, the terms "fixedly connected" or "fixedly connected" should be interpreted broadly, that is, any connection between the two that does not have a relative rotational or translational relationship, that is, non-detachably fixed, integrally connected, and fixedly connected by other devices or elements.

In the claims, the specification and the drawings of the present invention, the terms "including", "having" and their variants, if used, are intended to be inclusive and not limiting.

Referring to fig. 1-3, fig. 1-3 illustrate a fitting for connecting a threaded hose including an inner tube 40 and an outer tube 50 having external threads, the inner tube 40 extending beyond the outer tube 50, in an embodiment, the outer tube 50 is a double-threaded tube.

The joint includes a ferrule 10, a sleeve 20, and a nut 30.

The ferrule 10 is made of plastic material, the ferrule 10 is provided with an insertion portion 11 and a butting portion 12 which are connected with each other in an integral manner along the axial direction, the insertion portion 11 is inserted into a portion of the inner tube 40 extending out of the outer tube 50 and is in interference fit with the inner tube 40, and the butting portion 12 extends out of the inner tube 40 and forms a first flange 121 which is butted against the end wall of the inner tube 40. In a specific implementation, a plurality of anti-backing fixture blocks 111 are distributed on the outer wall of the insertion portion 11 along the axial direction, and the outer diameter of the anti-backing fixture blocks 111 along the insertion direction of the ferrule 10 is gradually reduced.

The sleeve 20 is made of plastic material so as to have better toughness, the sleeve 20 is provided with a sleeve body 21 and a connecting part 22 which are connected into a whole along the axial direction, the sleeve body 21 is sleeved on the part of the inner tube 40 extending out of the outer tube 50 and abuts against the first flange 121, in the specific implementation, one end of the sleeve body 21 far away from the connecting part 22 is provided with a second flange 211 which is protruded outwards along the radial direction and abuts against the first flange 121; the connecting portion 22 includes a plurality of expanding portions 221, each expanding portion 221 is adapted to be expanded and has an internal thread adapted to the external thread of the outer tube 50, in an embodiment, each expanding portion 221 is circumferentially arranged, each expanding portion 221 axially extends from the end of the sleeve 21, the structure is simple to use, one end of each expanding portion 221 away from the sleeve 21 is provided with a fixture block 222 in a protruding manner in a radial direction, and an end surface of one end of each fixture block 222 away from the second flange 211 is an inclined surface 2221 inclined in a radial direction outwards. Wherein, the inner diameter of the sleeve body 21 is smaller than that of the connecting part 22. The inner diameter of the jacket body 21 is also larger than the outer diameter of the inner tube 40 to allow room for expansion of the inner tube 40 after the ferrule 10 is compressed.

The nut 30 is rotatably sleeved outside the sleeve 20 and compresses the expansion part 221, and is also clamped with the sleeve body 21 along the axial direction; the portion thereof protruding outside the sleeve 20 is internally threaded. Specifically, the inner wall of the nut 30 forms a locking groove 31 adapted to the locking block 222, and the inner wall of the nut 30 is further provided with an abutting surface 32 abutting against the second flange 211. In specific implementation, a stepped hole is formed in the nut 30, an internal thread is formed on the inner wall of a large hole of the stepped hole, a small hole of the stepped hole is sleeved outside the sleeve 20, the clamping groove 31 is formed on the wall of the small hole of the stepped hole, and the shoulder of the stepped hole forms the abutting surface 32.

The assembly process is as follows:

the nut 30 is movably sleeved outside the outer tube 50 inserted into the inner tube 40, the clamping groove 31 is located at one end far away from the opening of the outer tube 50, the sleeve 20 is sleeved outside the outer tube 50, the expanding portion 221 is in threaded connection with the outer tube 50, the nut 30 is pulled towards the opening direction of the outer tube 50 until the clamping block 222 of the sleeve 20 enters the clamping groove 31 of the nut 30, the abutting surface 32 of the nut 30 abuts against the second flange 211, the inserting portion 11 of the ferrule 10 is inserted into the portion, extending out of the outer tube 50, of the inner tube 40, the first flange 121 extends out of the outer tube 50 and abuts against the second flange 211, and the pressing machine is used for pressing.

It can be known that, with the technical solution in this embodiment, after assembly, the nut 30 compresses the expansion portion 221 of the sleeve 20, so that the expansion portion 221 and the outer tube 50 are tightly screwed together without loosening; the sleeve 20 is fixed in position in the axial direction, specifically, the second flange 211 of the sleeve 20 is axially clamped between the abutting surface 32 of the nut 30 and the first flange 121 of the ferrule 10, the contact area is large when the second flange 211 abuts against the first flange 121, the latch 222 of the sleeve 20 is axially limited by the latch groove 31 of the nut 30, the end surface of the sleeve body 21 facing the outer tube 50 is also abutted against the end wall of the corresponding outer tube 50, and thus the structure of the whole hose and the joint is more stable; the jacket 21 of the sleeve 20 is clamped between the nut 30 and the ferrule 10 and thus does not loosen in the radial direction. Preferably, an end surface of the latch 222, which is away from the second flange 211, is an inclined surface 2221 that is inclined radially outward, so that the latch 222 can enter the latch slot 31 along the axial direction, and the assembly is more convenient. The matching of the fixture block 222 and the clamping groove 31 is easy to assemble, stable in structure and convenient to produce and process.

It can be known that, with the technical scheme, the assembly steps of the joint and the threaded hose are less, the assembly is simpler, and the sleeve 20 is sleeved outside the double-buckle pipe, so that the inner diameter of the double-buckle pipe is not influenced, the inner diameter of the inner pipe 40 is not influenced, and the water passing amount through the inner pipe 40 is larger.

The description of the above specification and examples is intended to be illustrative of the scope of the present invention and is not intended to be limiting. Modifications, equivalents and other improvements which may occur to those skilled in the art and which may be made to the embodiments of the utility model or portions thereof through a reasonable analysis, inference or limited experimentation, in light of the common general knowledge, the common general knowledge in the art and/or the prior art, are intended to be within the scope of the utility model.

Claims (7)

1. A joint for connecting a threaded hose comprising an inner tube and an outer tube having an external thread, the inner tube extending beyond the outer tube, characterized in that the joint comprises

The inserting core is provided with an inserting part and a propping part which are connected into a whole along the axial direction, the inserting part is inserted into the part of the inner pipe extending out of the outer pipe and is in interference fit with the inner pipe, and the propping part extends out of the inner pipe and forms a first flange which is propped against the end wall of the inner pipe;

the sleeve body and the connecting part are axially arranged on the sleeve body and are connected into a whole, and the sleeve body is sleeved on the part of the inner pipe extending out of the outer pipe and is abutted against the first flange; the connecting part comprises a plurality of expansion parts, and the expansion parts are suitable for expansion and are provided with internal threads matched with the external threads of the outer pipe; and

the nut is rotationally sleeved outside the sleeve and compresses the expansion part, and is also clamped with the sleeve body along the axial direction; the part of the sleeve extending out of the sleeve is provided with internal threads.

2. A coupling as claimed in claim 1, wherein each flared portion is disposed circumferentially, the flared portions extending axially from the ends of the housing.

3. A connector as claimed in claim 2, wherein the end of said flared portion remote from said sleeve body is provided with a locking block protruding radially outward, and the inner wall of said nut is formed with a locking groove adapted to said locking block.

4. A coupling as claimed in claim 3, wherein the end of the sleeve remote from the connecting portion projects radially outwardly to form a second flange which abuts the first flange, and the inner wall of the nut further forms an abutment surface which abuts the second flange.

5. A connector as defined in claim 4, wherein the end surface of said latch remote from the second flange is a radially outwardly inclined surface.

6. A connector as claimed in claim 5, wherein the ferrule and sleeve are made of plastics material.

7. A joint as defined in claim 6, wherein the inside diameter of said sheath is smaller than the inside diameter of said connecting portion.

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