CN210600608U

CN210600608U - Three-way pipe joint with threaded head

Info

Publication number: CN210600608U
Application number: CN201920465448.9U
Authority: CN
Inventors: 凌坚昌
Original assignee: Suzhou Jointand Piping System Co ltd
Current assignee: Suzhou Jointand Piping System Co ltd
Priority date: 2019-04-08
Filing date: 2019-04-08
Publication date: 2020-05-22
Anticipated expiration: 2029-04-08

Abstract

The application discloses tee pipe coupling of taking thread head includes: the sealing ring comprises an annular shell with an opening, a fastening device arranged at the opening of the annular shell, and a sealing ring arranged in the annular shell; the outer peripheral surface of the annular shell is vertically fixed with a sleeve communicated with the central inner cavity of the sealing ring, and the outer peripheral surface of one end of the sleeve, which is far away from the annular shell, is provided with an external thread. This kind of three-way pipe joint of this application has only directly increased a screwed joint alright acquisition on traditional double-barrelled pipe joint, easy preparation, low cost, convenient and practical.

Description

Three-way pipe joint with threaded head

Technical Field

The application relates to a pipe joint, in particular to a three-way pipe joint with a threaded head.

Background

In pipeline construction, pipeline connection is a very common application requirement. At present, pipe joints are widely used for connecting pipelines.

The existing pipe joint generally comprises an annular shell with an opening, a sealing ring is arranged in the shell, the outer wall of the sealing ring is tightly attached to the inner wall of the shell but the outer wall of the sealing ring and the inner wall of the shell are not fixed together, a fastening mechanism is arranged at the opening of the shell and used for fastening the shell, when the fastening mechanism is contracted, a gap at the opening of the shell is reduced, the shell forms a radial inward clamping force on the sealing ring, so that the shell is fastened, and further, the inner wall of the sealing ring is contracted to clamp the outer wall of a pipeline placed in the shell to realize sealing.

However, since the pipe joint of the above conventional structure can connect only two pipes, it cannot connect three pipes at the same time.

Disclosure of Invention

The purpose of the application is: in view of the above problems, a three-way pipe joint capable of communicating three pipes simultaneously is provided.

The technical scheme of the application is as follows:

a three-way pipe fitting with a threaded head, comprising:

an annular outer shell with an opening is arranged on the outer shell,

a fastening device arranged at the opening of the annular housing, and

a seal ring disposed within the annular housing;

the outer peripheral surface of the annular shell is vertically fixed with a sleeve communicated with the central inner cavity of the sealing ring, and the outer peripheral surface of one end of the sleeve, which is far away from the annular shell, is provided with an external thread.

On the basis of the technical scheme, the application also comprises the following preferable scheme:

the sleeve and the opening are respectively arranged on two radial opposite sides of the annular shell.

The inner hole wall of the sleeve is provided with an internal thread, and the sleeve and the annular shell sequentially penetrate through the sealing ring and the annular shell from inside to outside to extend into the sleeve and are fixedly connected with a hollow bolt in locking fit with the internal thread.

A first rubber gasket sleeved outside the hollow bolt is clamped between the sleeve and the annular shell.

The telescopic hole by keep away from the outer hole section of annular shell with be close to the inner hole section of annular shell constitutes, outer hole section with the inner hole section is the equal footpath round hole, and the aperture of inner hole section is greater than the aperture of outer hole section, the internal thread set up in the inner hole section.

An annular step located at the joint of the outer hole section and the inner hole section is formed in the sleeve, and a second rubber gasket axially clamped between the hollow bolt and the step surface of the annular step is arranged in the inner hole section.

The hollow bolt is characterized in that the central through hole of the hollow bolt is equal to the diameter of the outer hole section, and the central through hole of the hollow bolt and the outer hole section are coaxially arranged.

The sleeve is composed of an outer cylinder section far away from the annular shell and an inner cylinder section close to the annular shell, the outer diameter of the inner cylinder section is larger than that of the outer cylinder section, so that an annular step is formed at the joint of the outer cylinder section and the inner cylinder section, and the external thread is arranged on the outer cylinder section.

The fastening device comprises a pair of lugs which are respectively arranged on the annular shells at the two sides of the opening, the lugs are formed by bending the annular shells outwards from the opening, and the tail ends of the bent parts are fixed on the annular shells; the bending part of each lug is symmetrically provided with two axially spaced positioning holes, each positioning hole is a long hole with uniform width, two ends of the length of each long hole are of a semicircular structure, round steel penetrates through each lug respectively, a bolt passing hole and a threaded hole corresponding to each positioning hole are formed in each round steel, and a bolt transversely penetrates through the corresponding bolt passing hole to be in threaded connection with the threaded hole.

The annular shell is provided with an opening, the annular shell is provided with a connecting hole, the connecting hole is communicated with the.

The application has the advantages that: this application has directly increased a joint on the basis of traditional double-barrelled coupling to make three pipelines of its intercommunication simultaneously, its easy preparation, low cost and very practical.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is an external view of a three-way pipe joint according to an embodiment of the present invention;

FIG. 2 is a partial cross-sectional view of a tee fitting of the present application;

wherein: 1-annular housing, 11-retaining wall, 1 a-opening, 2-fastening device, 21-lug, 22-locating hole, 23-round steel, 24-bolt, 3-sleeve, 31-external thread, 32-internal thread, 4-sealing ring, 5-annular hoop, 6-matching bridge, 7-hollow bolt, 8-first rubber sealing ring, 9-second rubber sealing ring.

Detailed Description

The above-described scheme is further illustrated below with reference to specific examples. It should be understood that these examples are for illustrative purposes and are not intended to limit the scope of the present application. The conditions used in the examples may be further adjusted according to the conditions of the particular manufacturer, and the conditions not specified are generally the conditions in routine experiments.

Fig. 1 and 2 show a specific embodiment of the tee fitting of the present invention, which, like the conventional pipe fitting, also includes an annular housing 1 with an opening 1a (specifically, the circumferential surface of the annular housing 1 is axially broken to form the opening 1a), a fastening device 2 provided at the opening of the annular housing, and a sealing ring 4 disposed in the annular housing.

Referring to fig. 1, two axial ends of the annular housing 1 are formed with retaining walls 11 extending radially inward, and an annular clamp 5 with a fracture is disposed between the retaining walls 11 and the seal ring 4 in the annular housing 1. The port of the annular collar 5 corresponds to the opening 1a of the annular housing 1. In practical application, after the pipe joint is fastened, the sealing ring 4 is pressed to deform and tightly press the annular clamping hoop 5, so that the annular clamping hoop 5 is clamped on the outer wall of the pipeline to prevent the pipe joint from axially deviating on the pipeline.

Referring to fig. 1 again, the fastening device 2 includes a pair of lugs 21 respectively disposed on the annular housing 1 at both sides of the opening 1a, the lugs 21 are formed by bending the annular housing 1 outward from the opening, and the ends of the bent portions are fixed to the annular housing. The bending part of each lug is symmetrically provided with two positioning holes 22 which are axially spaced. In addition, in order to facilitate the processing of the positioning hole 22 at the bending position of the lug, the positioning hole 22 is configured as a long hole with uniform width, and both ends of the length of the long hole are in a semicircular structure. Round steel 23 is respectively arranged in each lug in a penetrating manner, a bolt passing hole and a threaded hole corresponding to the positioning hole are formed in each round steel 23, and a bolt 24 transversely penetrates through the corresponding bolt passing hole to be in threaded connection with the threaded hole. In practical application, the end parts of the two pipelines are respectively inserted into the sealing rings 4, and the fastening and the removal of the three-way pipe joint on the two pipelines are realized through the rotating matching of the bolts 24 and the round steel 23 with threaded holes.

In this example, the end of the bent portion of the lug 21 is fixed to the ring-shaped case 1 by welding.

The pipe joint further includes a bridge 6, and the bridge 6 is installed at the opening 1a of the ring-shaped housing 1 for closing the opening 1 a. One end of the matching bridge 6 is welded and fixed with the inner wall of one side of the opening of the annular shell, and the other end is a free end. When the opening 1a is tightened by the fastening means 2 of the pipe joint, the free end of the bridge 6 can move along the inner wall of the housing.

The key improvement of the embodiment is that a sleeve 3 communicated with the central inner cavity of the seal ring 4 is fixedly connected to the outer peripheral surface of the annular shell 1, and the outer peripheral surface of one end (outer end) of the sleeve 3 far away from the annular shell 1 is provided with an external thread 31. The external thread 31 on the sleeve 3 is used to fixedly connect the end of a third pipe and to communicate the third pipe with the central cavity of the seal ring 4, so that the third pipe and the two pipes are communicated with each other.

In this embodiment, the sleeve 3 is composed of an outer cylinder section far away from the annular housing 1 and an inner cylinder section close to the annular housing 1, and the outer diameter of the inner cylinder section is larger than that of the outer cylinder section, so that an annular step is formed at the joint of the inner cylinder section and the outer cylinder section, and the external thread is specifically arranged on the outer cylinder section. Because the outer diameter of the inner cylinder section is larger than that of the outer cylinder section and the joint of the inner cylinder section and the outer cylinder section forms an annular step, when the third pipeline is installed, the third pipeline can axially abut against the step surface of the annular step, and the locking force is larger and is not easy to loosen.

The outer contour of the inner cylinder section is of a regular hexagonal prism structure.

In the present embodiment, the sleeve 3 is disposed perpendicular to the annular housing 1, and the sleeve 3 and the opening 1a are disposed on two opposite sides of the annular housing 1 in the radial direction.

The sleeve 3 and the annular housing 1 are fixed to each other by means of a hollow bolt 7 (i.e. a bolt having a central through hole formed therein). Specifically, the method comprises the following steps: the inner hole wall of the sleeve 3 is provided with a section of internal thread 32, and the hollow bolt 7 sequentially penetrates through the sealing ring 4 and the annular shell 1 from inside to outside to extend into the sleeve 3 and is in locking fit with the internal thread of the sleeve 3, so that the sleeve 3 and the annular shell 1 are fastened.

A first rubber gasket 8 sleeved outside the hollow bolt 7 is axially clamped between the sleeve 3 and the annular shell 1 so as to improve the connection sealing property of the sleeve 3 and the annular shell 1.

The inner hole of the sleeve 3 is composed of an outer hole section far away from the annular shell 1 and an inner hole section close to the annular shell 1, the outer hole section and the inner hole section are all diameter-equalizing round holes, the aperture of the inner hole section is larger than that of the outer hole section, and the internal thread is specifically arranged on the inner hole section (but not the outer hole section).

It will be appreciated that because the bore diameter of the inner bore section is greater than the outer bore section, an annular step at the junction of the outer bore section and the inner bore section will be formed within the sleeve 3. In order to further improve the connection sealing performance and prevent liquid leakage in use, the second rubber gasket 9 axially clamped between the hollow bolt 7 and the step surface of the annular step is arranged in the inner hole section of the sleeve.

It should be understood that the above-mentioned embodiments are only illustrative of the technical concepts and features of the present application, and the present application is not limited thereto. All equivalent changes and modifications made according to the spirit of the main technical scheme of the application are covered in the protection scope of the application.

Claims

1. A three-way pipe fitting with a threaded head, comprising:

an annular housing (1) with an opening (1a),

a fastening device (2) arranged at the opening of the annular housing (1), and

a sealing ring (4) arranged within the annular housing (1);

the sealing ring is characterized in that a sleeve (3) communicated with a central inner cavity of the sealing ring (4) is vertically fixed on the outer peripheral surface of the annular shell (1), and an external thread (31) is formed on the outer peripheral surface of one end, far away from the annular shell (1), of the sleeve (3).

2. Tee coupling with a threaded head according to claim 1, characterised in that said sleeve (3) and said opening (1a) are arranged respectively on two diametrically opposite sides of said annular housing (1).

3. The tee coupling with threaded head according to claim 1, characterized in that the inner bore wall of said sleeve (3) is formed with an internal thread (32), said sleeve (3) and said ring-shaped housing (1) being fixedly connected by a hollow bolt (7) passing through said seal ring (4) and said ring-shaped housing (1) in sequence from inside to outside and extending into said sleeve (3) and being in locking engagement with said internal thread.

4. The tee coupling with threaded head according to claim 3, characterized in that a first rubber gasket (8) sleeved outside the hollow bolt (7) is interposed between the sleeve (3) and the annular housing (1).

5. The tee coupling with threaded head according to claim 3, characterized in that the internal bore of said sleeve (3) is constituted by an external bore section distal from said annular housing (1) and an internal bore section proximal to said annular housing (1), both of said external and internal bore sections being of uniform diameter circular holes, and the aperture of said internal bore section being greater than that of said external bore section, said internal thread being provided in said internal bore section.

6. The tee coupling with threaded head according to claim 5, characterized in that an annular step is formed in said sleeve (3) at the junction of said outer bore section and said inner bore section, and a second rubber gasket (9) is arranged in said inner bore section, axially sandwiched between the hollow bolt (7) and the step surface of said annular step.

7. The threaded nipple as claimed in claim 5, characterized in that the central through hole of the hollow bolt (7) is equal in diameter to the outer bore section and the central through hole of the hollow bolt (7) is arranged coaxially to the outer bore section.

8. Tee coupling with a threaded head according to claim 1, characterised in that the sleeve (3) is made up of an outer cylindrical section remote from the annular housing (1) and an inner cylindrical section close to the annular housing (1), the outer diameter of the inner cylindrical section being greater than the outer diameter of the outer cylindrical section, forming an annular step at the junction thereof, the external thread being provided on the outer cylindrical section.

9. The threaded nipple as claimed in claim 1, wherein said fastening means (2) comprises a pair of lugs (21) respectively provided on the annular housing (1) on both sides of said opening (1a), said lugs (21) being formed by bending the annular housing (1) outward from the opening, the distal ends of the bent portions being fixed to the annular housing; the bending part of each lug is symmetrically provided with two positioning holes (22) at intervals in the axial direction, each positioning hole (22) is a strip-shaped hole with uniform width dimension, two ends of the length of each strip-shaped hole are of a semicircular structure, round steel (23) penetrates through each lug respectively, a bolt passing hole and a threaded hole corresponding to each positioning hole are formed in each round steel (23), and a bolt (24) transversely penetrates through the corresponding bolt passing hole to be in threaded connection with the threaded hole.

10. The threaded nipple tee fitting of claim 1, wherein: the annular shell is characterized by further comprising a matching bridge (6) used for sealing the opening (1a) of the annular shell, one end of the matching bridge (6) is fixedly connected with the inner wall of one side of the opening of the annular shell, and the other end of the matching bridge is a free end.