CN217463672U

CN217463672U - Saddle type direct joint and saddle type direct pipe assembly

Info

Publication number: CN217463672U
Application number: CN202123347913.5U
Authority: CN
Inventors: 滕云澜
Original assignee: Kuosheng Pipeline System Shanghai Co ltd
Current assignee: Kuosheng Pipeline System Shanghai Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-09-20
Anticipated expiration: 2031-12-28

Abstract

The utility model discloses a saddle formula lug joint and saddle formula direct pipe assembly. The saddle direct joint includes a generally tubular body; a main pipe joint end at one end of the main body, the main pipe joint end having an outer end surface of a generally saddle-shaped curved surface and a tubular main pipe connecting portion extending from the outer end surface; and a branch tab end at an opposite end of the body. The saddle type direct joint can be directly used as a substitute or supplement of a plastic tee joint, effectively solves the construction problem when the diameter difference between the main pipeline and the branch of the pipeline is large, improves the efficiency and saves the cost.

Description

Saddle type direct joint and saddle type direct pipe assembly

Technical Field

The utility model relates to a pipe-line system, concretely relates to plastic conduit transmission and distribution system's branch connection. More particularly, the present invention relates to saddle type direct fusion pipe joints and pipe assemblies.

Background

The branch connection of the plastic pipeline is generally realized by welding a plastic tee pipe fitting at present. However, the drawbacks of this prior art are also apparent. First, the tee is relatively bulky as a conduit branch and requires at least three spot welds to complete the installation. Secondly, when the caliber of the branch is different from that of the main pipeline greatly, the tee pipe fitting is relatively inconvenient, uneconomical and inflexible to use, and the installation position of the tee pipe fitting is limited to a certain extent. These are some drawbacks of the prior art.

CN205956630U discloses a connecting piece for realizing that plastic tubing connects soon to three-way pipe, including being used for with the convex surface bonding of outside plastic tubing convex plastic slab together, be connected with vertical connecting pipe on the convex plastic slab surface, the intercommunication has the mouth of drawing forth on the vertical connecting pipe lateral wall, from the opening of vertical connecting pipe outer end inwards stretch into be used for cutting when rotating convex plastic slab wall and outside plastic tubing pipe wall so that make outside plastic tubing with the saw head mechanism of vertical connecting pipe intercommunication, be equipped with the sealing mechanism who prevents vertical connecting pipe outer end opening part and leak between vertical connecting pipe and the saw head mechanism.

CN102364197A discloses a press-in type plastic pipe joint which is divided into two structural forms of a plastic pipe joint with a rubber seal ring and a plastic pipe joint with a taper on the inner wall of the pipe.

None of these prior art techniques above is a direct joint that easily adapts to the shape of the connected pipe, maximizing the bonding interface.

There is a great need in the art for new pipe couplings that address or mitigate the above-mentioned and other deficiencies.

The information included in this background section of the specification, including any references cited herein and any description or discussion thereof, is included for technical reference purposes only and is not to be considered subject matter which would limit the scope of the invention.

SUMMERY OF THE UTILITY MODEL

The present invention has been developed in view of the above-mentioned and other more recent concepts.

According to an aspect of the invention, it is intended to provide a saddle type direct joint, comprising a substantially tubular body, the saddle type direct joint further comprising: a main pipe joint end at one end of the main body, the main pipe joint end having an outer end surface of a generally saddle-shaped curved surface and a tubular main pipe connecting portion extending from the outer end surface; and a branch joint end at the opposite end of the main body.

According to an embodiment, the outer end surface of the substantially saddle-shaped curved surface substantially conforms to the shape of the outer circumferential surface of the main pipe, such that the outer end surface substantially abuts on the outer circumferential surface when the main pipe joint end is connected with the main pipe.

According to another embodiment, the branch stub end is unthreaded and has an inner diameter adapted to receive and fuse the branch tube.

According to another embodiment the branch joint end has an internally threaded tubular branch connection or an externally threaded tubular branch connection.

According to another embodiment, the saddle direct joint is a one-piece member injection molded from plastic.

According to another embodiment, the main pipe connecting portion has an inner end surface having a shape substantially conforming to a shape of an inner peripheral surface of the main pipe.

According to another embodiment, the main pipe connection of the saddle type direct joint has an outer diameter equal to the inner diameter of the branch joint end.

Another aspect of the present invention provides a saddle type direct pipe assembly, comprising: a main pipe made of plastic; and saddle-type direct joints as above; the saddle-type direct joint is directly welded on the main pipe, and the outer end face of the saddle-shaped curved surface of the joint end of the main pipe of the saddle-type direct joint is attached to the outer peripheral surface of the main pipe in a shape fitting mode.

According to an embodiment, the main pipe connection of the saddle type direct joint has an outer diameter equal to the outer diameter of the branch pipe to be connected at the branch joint end.

According to another embodiment, the pipe assembly further comprises a branch pipe connected at the branch junction end.

According to another embodiment, the branch pipe is connected to the branch connection end of the saddle direct connection by welding, female connection or male connection.

According to another embodiment, the saddle type direct joint is fitted and fusion-connected to the main pipe at the connection site.

The utility model discloses in, saddle formula lug joint can directly regard as the substitution of plastics tee bend or supply, can effectively solve the trunk line and the construction problem when pipeline branch bore drop is great, raises the efficiency, saves the cost.

Further embodiments of the present invention are also capable of achieving other advantageous technical effects not listed, which other technical effects may be partially described hereinafter, and which are anticipated and understood by those skilled in the art upon reading the present invention.

Drawings

The above features and advantages and other features and advantages of these embodiments, and the manner of attaining them, will become more apparent and the embodiments of the invention will be better understood by reference to the following description, taken in conjunction with the accompanying drawings, wherein:

fig. 1 is a perspective view of a saddle type direct joint according to a first embodiment of the present invention, which can be used for a plastic pipe branch connection.

FIG. 2 is a schematic longitudinal cross-sectional view of the saddle direct joint of FIG. 1 along a central longitudinal axis showing the configuration and relative dimensions of the two ends of the saddle direct joint.

Fig. 3 is a perspective view of a saddle type direct fitting with an internally threaded branch fitting end according to a second embodiment of the present invention, which may be used for a plastic pipe branch connection.

Fig. 4 is a perspective view of a saddle type direct fitting with an externally threaded branch fitting end according to a third embodiment of the present invention, which may be used for a plastic pipe branch connection.

Fig. 5 is a sectional view showing the construction of the saddle type direct joint of the construction shown in fig. 1, with one end mounted on a main plastic pipe and the other end connected to a branch plastic pipe.

Detailed Description

The details of one or more embodiments of the invention are set forth in the accompanying drawings and the description below. Other features, objects, and advantages of the invention will be apparent from the description and drawings, and from the claims.

It is to be understood that the embodiments illustrated and described are not limited in application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings. The illustrated embodiments are capable of other embodiments and of being practiced or of being carried out in various ways. Examples are provided by way of explanation of the disclosed embodiments, not limitation. Indeed, it will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention without departing from the scope or spirit of the disclosure. For instance, features illustrated or described as part of one embodiment, can be used with another embodiment to yield a still further embodiment. Accordingly, the present disclosure covers such modifications and variations as come within the scope of the appended claims and their equivalents.

Also, it is to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of "including," "comprising," or "having" and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items.

The present invention will be described in more detail below with reference to a number of specific embodiments of the invention.

First embodiment

As shown in fig. 1-2 and 5, there is shown a schematic view of the construction details and installation of a saddle type direct joint according to a first embodiment of the present invention, which can be used for plastic pipe branch connections.

In this first embodiment, the saddle type direct fitting has a body 1 of generally tubular shape having an outer diameter D (shown in FIG. 2) and one end which is also a generally tubular branch fitting end 11, the branch fitting end 11 having an inner diameter D (shown in FIG. 2) and a length z2 for receiving and engaging a branch pipe B (shown in FIG. 5, for example) therein.

The opposite end of the main body 1 is a main pipe stub end 12, the main pipe stub end 12 having an outer end face 122 shaped to conform to and conform to the generally cylindrical outer peripheral shape of the main pipe a, it being apparent that the outer end face 122 is curved in shape, as shown, similar in shape to a saddle. More specifically, as shown in FIG. 2, outer end surface 122 is shaped such that when the saddle direct fitting is seated on the main conduit, the curved shape of outer end surface 122 substantially conforms to the outer peripheral shape of main conduit A, having an outer diameter D1, so as to substantially conform to and tightly engage the outer peripheral surface of the main conduit, which facilitates maintaining strength and reliability of the joint after welding, as will be readily understood by those skilled in the art.

The main pipe joint end 12 is also configured to be provided with a generally tubular main pipe connection extending from the outer end face 122. More specifically, as shown in FIG. 1, the primary duct connection extends from the outer end surface 122 and is surrounded by the outer end surface 122.

According to a preferred example, the extension of the main conduit connection is substantially equal to or slightly greater than the wall thickness of the main conduit, as shown in fig. 5.

The main pipe connection portion outer diameter d2 may preferably be substantially equal to the outer diameter of the branch pipe B, and may preferably be substantially equal to the inner diameter d (shown in fig. 2) of the branch joint end 11. Therefore, when the branch pipe B is assembled and connected, the holes with the same size and the corresponding branch calibers can be directly formed in the main pipeline A only by knowing the outer diameter of the branch pipe B, and the welding process is convenient and simplified.

Also, the inner end surface 121 of the main pipe connecting portion is preferably a curved surface having a shape substantially conforming to the shape of the inner peripheral surface of the main pipe, and thus configured like a saddle. Thus, when the main pipe joint end 12 is connected in place on the outer peripheral surface of the main pipe, the inner peripheral surface of the main pipe can still be kept substantially smooth, and fluid can smoothly flow in the main pipe without being substantially affected by the shape of the main pipe connection portion.

As shown in fig. 5, there is shown a sectional view of a connection portion 1220 where, for example, the main pipe joint end 12 of the saddle type direct joint 1 is attached to the plastic main pipe a and the branch joint end 11 is connected to the plastic branch pipe B. As can be seen from the figure, at the connection portion 1220, the structure of the direct joint 1 is firmly fitted and fused to the main pipe a.

Second embodiment

A second embodiment of the present invention will be described with reference to fig. 3. Fig. 3 is a perspective view of a saddle type direct fitting with an internally threaded branch fitting end according to a second embodiment of the present invention, which may be used for a plastic pipe branch connection.

The second embodiment is constructed substantially the same as the first embodiment except that the saddle direct joint of the second embodiment has an internally threaded branch joint end.

In this embodiment, the saddle type direct joint has a main body 2 of a generally tubular shape with an internally threaded branch joint end 21 at one end and a main pipe joint end 22 at the other end.

The internally threaded branch joint end 21 may be secured (e.g., by interference fit, screwing, snapping-in, etc.) to a generally tubular branch connection portion 211 as shown in fig. 3. The branch connection portion 211 has an internal thread 2110 for screwing with the branch pipe B to screw-fix the branch pipe B therein. The branch connection 211 may be made of plastic, and may be adapted to be screwed to the branch pipe B; or may be made of metal, such as brass, and may be threaded with the branch pipe B of any available material, such as plastic, metal, depending on the application.

The tubular shaped body 2 may also be provided with anti-slip formations 23, such as textures, patterns, ribs, etc.

Third embodiment

A third embodiment of the present invention will be described with reference to fig. 4. Fig. 4 is a perspective view of a saddle type direct fitting with an externally threaded branch fitting end according to a third embodiment of the present invention, which may be used for a plastic pipe branch connection.

First, theIIIThe embodiment is substantially the same in construction as the first embodiment, except thatIIIThe saddle type direct joint of the embodiment has an externally threaded branch joint end.

In this embodiment, the saddle type direct joint has a main body 3 of a generally tubular shape with an externally threaded branch joint end 31 at one end and a main pipe joint end 32 at the other end.

The externally threaded branch fitting end 31 may be secured (e.g., by interference fit, screwing, snapping-in, etc.) to a generally tubular branch connection portion 311 as shown in fig. 4. The branch connection portion 311 has an external thread 3110 for screwing the branch pipe B thereon in a threaded manner. Branch connection 311 may be plastic and may be adapted for threaded connection with branch pipe B; or may be made of metal such as brass and may be screwed with the branch pipe B of various available materials such as plastic, metal, depending on the application.

The tubular shaped body 3 may also be provided with anti-slip formations 33, such as textures, patterns, ribs, etc.

The connection process steps of an embodiment of the saddle direct joint of the present invention are described below.

Firstly, a hole opener is used for opening a hole with a caliber corresponding to the pipe diameter of a connecting part of a main pipeline on the main pipeline.

And step two, heating the opening of the main pipeline and the corresponding welding part of the saddle type direct joint by using a hot melting device and a corresponding saddle type welding die head required for welding the saddle type direct joint.

And step three, inserting the main pipe connecting part at the main pipe joint end of the saddle-type direct joint into the opening of the main pipe, and attaching all the welding surfaces, wherein the outer end surface is completely attached to the outer peripheral surface of the main pipe to complete fusion, so that the saddle-type direct joint is safely and firmly welded and fixed on the main pipe and is provided with a branch joint end.

In this way, the generally tubular branch joint end is welded and fixed generally orthogonally to the main pipe joint end.

Thereafter, depending on the application and embodiment, a correspondingly sized branch pipe may be selectively connected to the branch connection end.

In conclusion, the technical personnel in the field can understand completely, with the help of the utility model discloses a with the help of above design, the utility model discloses a saddle formula lug connection can directly regard as the replacement of plastics tee bend or supplement, can effectively solve the construction problem when pipeline and pipeline branch bore drop are great, raise the efficiency, save the cost.

Moreover, the saddle type direct joint of the utility model has the advantages and the technical effects as follows:

1. the saddle type direct joint has small volume;

2. the welding is safe, firm and quick when the pipeline is assembled on site;

3. the position of the welding installation can be determined according to the specific branched position, and the welding installation is flexible and convenient;

4. the saddle type direct joint can be provided with a thread interface or a plastic pipeline fusion interface at the end of the branch joint;

5. the saddle-type direct joint has a larger welding joint surface (the welding joint surface can comprise the peripheral cambered surface and the pipe wall thickness of the main pipe, and the joint interface is a closely attached interface of a saddle-shaped curved surface and the peripheral cambered surface with a larger area, as shown in figure 2) with the main pipe joint end;

6. the saddle formula direct connection connects the butt fusion between the material with combining of trunk line, has formed chemical bonding, becomes a whole after the butt fusion is accomplished, and bonding strength is higher, safe and reliable.

The foregoing description of several embodiments of the invention has been presented for the purposes of illustration and description. The foregoing description is not intended to be exhaustive or to limit the invention to the precise steps and/or forms disclosed, and obviously many modifications and variations are possible in light of the above teaching. The scope of the invention and all equivalents are intended to be defined by the appended claims.

Claims

1. A saddle direct joint comprising a tubular body, characterized in that it further comprises:

a main pipe joint end at one end of the main body, the main pipe joint end having an outer end face of a saddle-shaped curved surface, and a tubular main pipe connecting portion extending from the outer end face; and

a branch tab end at an opposite end of the body.

2. The saddle-type direct joint according to claim 1, wherein the shape of the outer end surface of the saddle-shaped curved surface conforms to the shape of the outer peripheral surface of the main pipe, so that the outer end surface is attached to the outer peripheral surface when the main pipe joint end is connected to the main pipe.

3. The saddle direct joint according to claim 1, wherein the branch joint end is unthreaded and has an inner diameter adapted to receive and fuse the branch pipe.

4. The saddle direct joint according to claim 1, wherein the branch joint end has a tubular branch connection with internal threads or a tubular branch connection with external threads.

5. The saddle direct joint according to claim 1, wherein the saddle direct joint is a unitary member injection molded from plastic.

6. The saddle-type direct joint according to claim 1, wherein the main pipe connecting portion has an inner end surface whose shape conforms to the shape of the inner peripheral surface of the main pipe.

7. The saddle direct joint according to claim 1, wherein an outer diameter of the main pipe connection portion of the saddle direct joint is equal to an inner diameter of the branch joint end.

8. A saddle-type direct pipe assembly comprising a main pipe made of plastic, characterized in that the pipe assembly further comprises a saddle-type direct joint according to any one of claims 1-7; the saddle-type direct joint is directly welded on the main pipeline, and the outer end surface of the saddle-shaped curved surface of the joint end of the main pipeline of the saddle-type direct joint is attached to the outer peripheral surface of the main pipeline in a matching mode.

9. The pipe assembly of claim 8, wherein an outer diameter of the main pipe connection of the saddle direct fitting is equal to an outer diameter of a branch pipe to be connected at the branch fitting end.

10. The pipe assembly of claim 8, further comprising a branch pipe connected at the branch junction end.

11. The pipe assembly of claim 10, wherein said branch pipe is connected to said branch connection end of said saddle direct connection by welding, female connection, or male connection.

12. A pipe assembly according to any one of claims 8-11, wherein said saddle direct joint is jogged and fused to said main pipe at a connection point (1220).