CN213089034U

CN213089034U - Metal thread pipe joint

Info

Publication number: CN213089034U
Application number: CN202021395433.9U
Authority: CN
Inventors: 邱强生; 林根发
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2021-04-30
Anticipated expiration: 2030-07-15

Abstract

The utility model discloses a metal thread pipeline joint, which comprises a joint main body, a sealing element, a locking element and a nut, wherein the sealing element is positioned on the inner wall of the joint main body, and the nut is in threaded connection with the end part of the joint main body; the retaining member includes elastic ring and bullet knot, and the one end of elastic ring offsets with the terminal surface of sealing member, and the lateral wall of elastic ring is equipped with the bullet tongue, and the bullet is buckled and is fixed a position on the bullet tongue, and the nut is connected the bullet and is buckled and make radial motion. The utility model discloses a concave ring of lock on the outer wall of bellows or screwed pipe is buckled to bullet, screws up and unscrews the nut in-process, and the extrusion inclined plane cooperation of buckleing through the first inclined plane and the second inclined plane of nut inner wall and bullet realizes installing fast and dismantling, and when the bullet was buckled straining bellows or screwed pipe, through roof pressure ring extrusion sealing member, the locking sealing performance who connects is good.

Description

Metal thread pipe joint

Technical Field

The utility model belongs to the technical field of the pipe joint technique and specifically relates to a metal thread pipe joint is related to.

Background

The threaded pipe is also called low-rib pipe, mainly expands heat transfer area by means of external ribbing of pipe, and is generally used in the place where the heat supply coefficient in pipe is greater than that outside pipe. The corrugated pipe is a tubular elastic sensitive element formed by connecting foldable corrugated sheets along the folding and stretching direction, and is widely applied to instruments and meters. In daily use, the screwed pipes or the corrugated pipes are connected by adopting the screwed joints, and the screwed pipes are connected by the screwed joints and then can be disassembled and replaced, so that convenience is brought to the use of the screwed pipes. In the conventional threaded joint, two butted threaded pipes or corrugated pipes are connected and then are connected by screwing threads or locking by a clamp. However, when the conventional threaded joint is used for connecting a threaded pipeline, the structure is complex, the pipeline installation is complicated, and the threaded joint and the threaded pipe are required to be disassembled completely when the threaded joint is disassembled, so that the construction efficiency is influenced.

Therefore, the technical problems of the pipe joint technology in the prior art described above have become a problem to be solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a metal thread pipeline joint, after connecting a beam corrugated pipe or a screwed pipe, a nut locks the joint main body, a spring buckle is buckled on a concave ring of the corrugated pipe or the screwed pipe, two corrugated pipes or the screwed pipe are clamped, and an elastic ring supports against a sealing element to ensure the sealing performance of the connection; when the nut is loosened, the elastic tongue elastically releases the elastic buckle through elasticity of the elastic tongue, so that the elastic buckle is separated from the corrugated pipe or the threaded pipe, the two corrugated pipes and the threaded pipe can be quickly pulled out, the installation and the disassembly are quick, and the construction efficiency is effectively improved.

In order to solve the technical problem, the utility model provides a technical scheme is: a metal threaded pipeline joint comprises a joint main body, a sealing element, a locking element and a nut, wherein the sealing element is positioned on the inner wall of the joint main body, and the nut is in threaded connection with the end part of the joint main body; the retaining member includes elastic ring and bullet knot, and the one end of elastic ring offsets with the terminal surface of sealing member, and the lateral wall of elastic ring is equipped with the bullet tongue, and the bullet is buckled and is fixed a position on the bullet tongue, and the nut is connected the bullet and is buckled and make radial motion.

The above technical scheme is adopted in the utility model, with two bellows or screwed pipe insert joint main part, the lock nut in-process, the hasp location is on playing the tongue and detain on the concave ring of bellows with the locking bellows, the one end extrusion sealing member of elastic ring for the sealed bellows outer wall of sealing member with connect the main part inner wall, through the elastic action of playing the tongue when dismantling, flick the bullet and detain and make it reset, break away from the concave ring of bellows, the bellows can be extracted from the joint rapidly, convenient dismantlement and maintenance.

Furthermore, the locking piece also comprises a jacking ring arranged between the elastic ring and the sealing piece. The effect of top clamping ring is on transmitting the extrusion force of elasticity ring to the sealing member better, ensures good sealing performance.

Furthermore, the elastic buckle is provided with a radial inner circular protrusion, the side wall of the elastic ring is provided with a strip-shaped hole, and the elastic buckle is positioned on the elastic tongue so that the radial inner circular protrusion is inserted into the strip-shaped hole. The radial inner circular convex buckle is arranged on the concave ring of the corrugated pipe, the radial inner circular convex buckle on the elastic buckle is inserted into the strip-shaped hole and buckled on the concave ring of the corrugated pipe, and the radial inner circular convex buckle is matched with the concave ring of the corrugated pipe and used for clamping the corrugated pipe.

Furthermore, the inner wall of the top pressing ring is provided with a protrusion, the elastic ring is provided with a clamping opening, and the top pressing ring is connected with the elastic ring through the protrusion and the clamping opening. The top clamping ring is detachably connected with the elastic ring through the protrusion and the clamping interface, so that the top clamping rings with different sizes can be conveniently replaced to adapt to different sealing pieces, and the use is flexible.

Still further, the inner wall of the end part of the joint main body is provided with a step surface which is tightly attached to the end surface of the sealing element. The end face of the sealing element is tightly attached to the step face, and the sealing of the sealing element between the corrugated pipe and the joint main body is guaranteed.

Furthermore, the inner side wall of the nut is provided with a first inclined surface and a second inclined surface which are connected with each other, and one end of the elastic buckle is provided with an extrusion inclined surface matched with the first inclined surface and the second inclined surface. After two bellows or screwed pipes are connected, when the nut is screwed, the second inclined plane is attached to the extrusion inclined plane of the elastic buckle, so that the elastic buckle is inserted into the elastic ring and is buckled on the concave ring of the bellows, when the nut is loosened, the second inclined plane is separated from the extrusion inclined plane of the elastic buckle, when the nut moves to the first inclined plane and is attached to the extrusion inclined plane, the elastic tongue on the elastic ring is used for ejecting the elastic buckle, so that the elastic buckle is reset to loosen the bellows, and the bellows can be directly pulled out from the joint.

Wherein, the joint main body inner wall is provided with a support ring. The support ring is used for abutting against the pipe orifices of the two connected corrugated pipes and has the function of positioning the connecting position of the two pipes.

The utility model discloses the beneficial effect who gains is:

1. the nut is screwed and unscrewed through the concave ring buckled on the outer wall of the corrugated pipe or the threaded pipe through the elastic buckle, the first inclined surface and the second inclined surface of the inner wall of the nut are matched with the extrusion inclined surface of the elastic buckle, rapid installation and disassembly are realized, the sealing element is extruded through the jacking ring while the corrugated pipe or the threaded pipe is buckled through the elastic buckle, and the locking sealing performance of the joint is good;

2. when the corrugated pipe or the threaded pipe is disassembled, the elastic force for ejecting the elastic buckle is provided by the elastic tongue, so that the elastic buckle is reset and separated from the concave ring of the pipe, the corrugated pipe or the threaded pipe can be quickly pulled out of the joint, and the disassembly and maintenance are convenient;

3. during the installation, with two pipe insert connect in and the mouth of pipe contradict the support ring after, screw up the nut for the top clamping ring compresses tightly sealing member, and the lock is buckled on the concave ring of bellows to the bullet, can accomplish the installation fast, improves the efficiency of construction.

Drawings

Fig. 1 is a schematic cross-sectional view of the present invention applied to a corrugated pipe;

FIG. 2 is an exploded view of the present invention in cross section in a corrugated tube;

fig. 3 is a schematic view of the exploded structure of the present invention applied to a corrugated pipe;

FIG. 4 is an exploded view of the retaining member of the present invention shown in FIG. 3;

fig. 5 is a schematic perspective view of the present invention applied to a corrugated pipe;

fig. 6 is a schematic sectional view of the present invention applied to a common pipeline.

Description of reference numerals: the connector comprises a connector body 1, a step surface 11, a support ring 12, a sealing element 2, a locking element 3, an elastic ring 31, a snap fastener 32, a snap tongue 33, a pressing ring 34, a radial inner circular bulge 35, a strip-shaped hole 36, a bulge 37, a clamping opening 38, an extrusion inclined surface 39, a nut 4, a first inclined surface 41, a second inclined surface 42, a corrugated pipe 5 and a concave ring 51.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description.

Referring to fig. 1 to 5, a metal threaded pipe joint includes a joint body 1, a sealing member 2, a locking member 3, and a nut 4, the sealing member 2 being located on an inner wall of the joint body 1, the nut 4 being threadedly coupled to an end of the joint body 1; the locking piece 3 comprises an elastic ring 31 and an elastic buckle 32, one end of the elastic ring 31 is abutted against the end face of the sealing piece 2, an elastic tongue 33 is arranged on the side wall of the elastic ring 31, the elastic buckle 32 is positioned on the elastic tongue 33, and the nut 4 is connected with the elastic buckle 32 to move radially. After the two corrugated pipes are connected, the elastic ring 31 extrudes the sealing element 2 along with the screwing of the nut 4, so that the sealing element 2 seals the joint main body 1 and the corrugated pipes 5; the elastic buckle 32 is inserted into the elastic ring 31 and presses the elastic tongue 33, and then is buckled on the concave ring 51 on the outer surface of the corrugated pipe 5, so that the corrugated pipe 5 is locked.

Furthermore, retaining member 3 comprises a pressing ring 34 disposed between elastic ring 31 and sealing member 2. The elastic buckle 32 is provided with a radial inner round bulge 35, the side wall of the elastic ring 31 is provided with a strip-shaped hole 36, and the elastic buckle 32 is positioned on the elastic tongue 33, so that the radial inner round bulge 35 is inserted into the strip-shaped hole 36. Referring to fig. 5, the radial inner protrusion 35 is a protrusion structure protruding from a side wall of the elastic buckle 32 in a radial direction of the elastic ring 31 on a side wall of the elastic buckle 32, and is pressed by an inner side wall of the nut 4 to be engaged with the concave ring 51 of the corrugated tube 5.

The inner wall of the top pressing ring 34 is provided with a protrusion 37, the elastic ring 31 is provided with a clamping opening 38, and the top pressing ring 34 is connected with the elastic ring 31 through the protrusion 37 and the clamping opening 38.

In the present embodiment, a stepped surface 11 is provided on the inner wall of the end portion of the joint body 1 to be in close contact with the end surface of the seal 2. The inner side wall of the nut 4 is provided with a first inclined surface 41 and a second inclined surface 42 which are connected with each other, and one end of the elastic buckle 32 is provided with an extrusion inclined surface 39 which is matched with the first inclined surface 41 and the second inclined surface 42, so that the elastic buckle 32 can buckle or loosen a concave ring 51 on the corrugated pipe 5.

The inner wall of the joint body 1 is provided with a support ring 12, and the support ring 12 abuts against the pipe orifice of the two corrugated pipes 5 when the two corrugated pipes 5 are inserted into the joint body 1.

In the specific implementation of the present invention, two corrugated pipes or threaded pipes are inserted along two ends of the joint body 1, the pipe orifices abut against two end faces of the support ring 12, then the nut 4 is locked, and in the locking process, the first inclined surface 41 of the nut 4 contacts the extrusion inclined surface 39 of the elastic buckle 32 at the beginning, and at this time, the elastic buckle 32 is not extruded; when the nut 4 is locked continuously, the second inclined surface 42 of the nut 4 approaches to the extrusion inclined surface 39 of the elastic buckle 32 and extrudes the extrusion inclined surface 39, so that the elastic buckle 32 moves radially inwards, the radial inner round protrusion 35 of the elastic buckle 32 penetrates through the strip-shaped hole 36 and is buckled on the concave ring of the corrugated pipe or the threaded pipe, so that the two connected corrugated pipes or threaded pipes are locked, the jacking ring 34 extrudes the end surface of the sealing element 2 through the pushing of the elastic ring 31 and the elastic buckle 32, and the sealing element 2 compresses the step surface 11 and the pipe outer wall on the joint main body 1, so that the quick installation can be realized, and a good sealing effect can be realized. During the disassembly process, the nut 4 is unscrewed and exits from the external thread of the joint main body 1, the second inclined surface 42 is separated from the extrusion inclined surface 39, when the first inclined surface 41 is attached to the extrusion inclined surface 39, the elastic buckle 32 is flicked and reset through the elastic action of the elastic tongue 33, the radial inner circular protrusion 35 is separated from the concave ring 51 of the pipe, the jacking ring 34 moves towards the outer side direction of the joint main body 1 along with the elastic ring 31, the sealing element 2 is loosened, the corrugated pipe can be loosened after the nut 4 is unscrewed on the joint main body 1 for a certain distance, and the pipe can be quickly pulled out of the joint and quickly disassembled.

As shown in fig. 6, a concave ring 51 is provided on the outer wall of the common pipe 5, and the elastic buckle 32 is buckled on the concave ring 51 on the outer wall of the common pipe during connection, so that the two pipes are connected firmly, and the specific implementation process is as described above.

In summary, the present invention has been made to practical samples according to the description and the drawings, and after a plurality of use tests, the utility model can be proved to achieve the expected purpose, and the practical value is undoubted. The above-mentioned embodiments are only used to conveniently illustrate the present invention, and are not to the limit of the present invention in any form, and any person who knows commonly in the technical field has, if not in the scope of the technical features of the present invention, utilize the present invention to make the equivalent embodiment of local change or modification, and not to break away from the technical features of the present invention, and all still belong to the technical features of the present invention.

Claims

1. A metal threaded pipeline joint comprises a joint main body (1), a sealing piece (2), a locking piece (3) and a nut (4), wherein the sealing piece (2) is positioned on the inner wall of the joint main body (1), and the nut (4) is in threaded connection with the end part of the joint main body (1); the method is characterized in that: retaining member (3) are including elastic ring (31) and bullet knot (32), and the one end of elastic ring (31) offsets with the terminal surface of sealing member (2), and the lateral wall of elastic ring (31) is equipped with bullet tongue (33), and bullet knot (32) location is on bullet tongue (33), and nut (4) are connected bullet and are detained (32) and do radial motion.

2. The metal threaded pipe joint according to claim 1, wherein: the locking piece (3) further comprises a top pressing ring (34) arranged between the elastic ring (31) and the sealing piece (2).

3. The metal threaded pipe joint according to claim 2, wherein: the elastic buckle (32) is provided with a radial inner circular bulge (35), the side wall of the elastic ring (31) is provided with a strip-shaped hole (36), and the elastic buckle (32) is positioned on the elastic tongue (33) so that the radial inner circular bulge (35) is inserted into the strip-shaped hole (36).

4. The metal threaded pipe joint according to claim 2, wherein: the inner wall of top pressure ring (34) is equipped with arch (37), is equipped with joint mouth (38) on elastic ring (31), links to each other through arch (37) and joint mouth (38) between top pressure ring (34) and elastic ring (31).

5. The metal threaded pipe joint according to claim 1, wherein: the inner wall of the end part of the joint main body (1) is provided with a step surface (11) which is tightly attached to the end surface of the sealing element (2).

6. The metal threaded pipe joint according to claim 2, wherein: the inner side wall of the nut (4) is provided with a first inclined surface (41) and a second inclined surface (42) which are connected with each other, and one end of the elastic buckle (32) is provided with an extrusion inclined surface (39) which is matched with the first inclined surface (41) and the second inclined surface (42).

7. The metal threaded pipe joint according to claim 1, wherein: the inner wall of the joint main body (1) is provided with a support ring (12).