Pipeline side connection structure and method

Abstract

The invention discloses a pipeline side connecting structure which comprises a pipeline connecting piece, an inner fixing sleeve and a locking piece. A circle of clamping groove is formed in the outer circumference of the pipeline connecting piece, a first annular boss and a second annular boss are arranged on the upper side and the lower side of the clamping groove respectively, a plurality of petal-shaped structures are arranged at the lower end of the pipeline connecting piece, openings are formed between the petal-shaped structures, and the openings extend to the position above the second annular boss. A thread structure is arranged on the inner side of the lower end of the pipeline connecting piece and extends to the inner side of the petal-shaped structure. The inner fixing sleeve is plugged into the pipeline connecting piece and is in threaded fit with the lower end of the pipeline connecting piece and the petal-shaped structure; an external thread structure is arranged at the upper end of the pipeline connecting piece, and the locking piece is sleeved outside the pipeline connecting piece and is in threaded fit with the pipeline connecting piece. The multiple openings are formed in the lower portion of the pipeline connecting piece, the pipeline connecting piece is plugged into the pipeline openings through deformation of the pipeline connecting piece, and therefore the pipeline connecting piece is fixed to the pipeline bayonet and connected with other pipelines through the locking piece, and then pipeline side connection can be completed.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline connection, and in particular to a pipeline side connection structure and method. Background Art

[0002] During the pipeline laying process, all pipeline structures need to be designed in advance, and branches are separated from the main pipeline through tees or crosses, and the remaining branches are separated from the branch pipes through tees or crosses. However, in actual operation, there will be a need to add additional branches, or to connect a new line to the installed pipeline, which requires drilling holes on the circumference of the pipeline and connecting the new pipeline at the holes.

[0003] At present, most of the pipes on the market are made of PVC or plastic materials. After opening holes on the circumference of the pipe, the connectors are usually fixed by gluing or hot melting. However, after long-term use, the joints are prone to loosening or even falling off, causing water seepage and leakage, affecting the normal use of the pipe system. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a pipeline side connection structure and method, which can enhance the stability of the pipeline side connection and extend the service life of the pipeline side connection.

[0005] To this end, the technical solution of the present invention is: a pipeline side connection structure, including a pipeline connector, an inner fixing sleeve and a locking member;

[0006] The pipe connector is provided with a circle of clamping grooves on its outer circumference, and the first annular boss and the second annular boss are provided on the upper and lower sides of the clamping groove respectively; the pipe connector is provided with a plurality of petal-shaped structures at its lower end, and openings are provided between the petal-shaped structures, and the openings extend to the upper side of the second annular boss; the pipe connector is provided with a threaded structure on the inner side of its lower end, and the threaded structure extends to the inner side of the petal-shaped structure;

[0007] The inner fixing sleeve is inserted into the pipe connector and is threadedly matched with the lower end of the pipe connector and the petal-shaped structure;

[0008] The upper end of the pipe connector is provided with an external thread structure, and the locking piece is sleeved on the outside of the pipe connector, and the two are threadedly matched.

[0009] On the basis of the above scheme and as a preferred scheme of the above scheme: the petal-shaped structure at the lower end of the pipe connector can be folded inward and inserted into the pipe opening, the second annular boss abuts against the inner wall of the pipe opening, and the first annular boss abuts against the outer wall of the pipe opening.

[0010] On the basis of the above scheme and as a preferred scheme of the above scheme: a groove is provided on the lower end surface of the first annular boss, and a sealing ring is provided in the groove, which fits tightly with the outer wall of the pipeline opening.

[0011] On the basis of the above scheme and as a preferred scheme of the above scheme: it also includes an external fixing sleeve, the upper end of the external fixing sleeve is provided with an annular clamping edge, and the lower end is provided with a curved surface structure; the external fixing sleeve is sleeved on the outside of the pipe connecting piece, the annular clamping edge abuts against the first annular boss, and the lower end of the locking piece abuts against the annular clamping edge at the top end of the external fixing sleeve.

[0012] On the basis of the above solution and as a preferred solution of the above solution: the curved surface structure of the outer fixing sleeve fits the outer circumference of the pipeline.

[0013] On the basis of the above solution and as a preferred solution of the above solution: the curved surface structure of the outer fixing sleeve is fixedly connected to the outer circumference of the pipeline by glue or hot melting.

[0014] Another technical solution of the present invention is: a pipeline side connection method, comprising the following steps:

[0015] 1) Open an opening of appropriate size on the pipeline and select pipeline connectors of appropriate specifications according to the opening size;

[0016] 2) Insert the lower end of the pipe connector into the pipe opening, and the second annular boss and the petal-shaped structure can be inserted into the pipe opening by deformation;

[0017] 3) Insert the inner fixing sleeve into the pipe connector, rotate the inner fixing sleeve, so that the inner fixing sleeve opens the deformed second annular boss and the petal-shaped structure, and threadably engages with the second annular boss, so that the second annular boss abuts against the inner wall of the pipe opening;

[0018] 4) Put the locking piece on the outside of the pipe connector, and the two threads fit together.

[0019] On the basis of the above scheme and as a preferred scheme of the above scheme: before step 4), the external fixing sleeve is put on the outside of the pipe connector, the curved surface structure fits the outer circumference of the pipe, and after the locking piece is put on the outside of the pipe connector, the lower end of the locking piece abuts against the annular clamping edge at the top end of the external fixing sleeve.

[0020] On the basis of the above solution and as a preferred solution of the above solution: the curved surface structure of the outer fixing sleeve is fixed to the outer circumferential surface of the pipeline by hot melting.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. A plurality of openings are provided under the pipe connector to form a second annular boss and a petal-shaped structure, so that the second annular boss and the petal-shaped structure are inserted into the pipe opening through their own deformation, and then the deformed second annular boss and the petal-shaped structure are propped open by the inner fixing sleeve, so that the second annular boss and the petal-shaped structure are clamped inside the pipe opening after restoration, thereby fixing the pipe connector on the pipe bayonet, and then connecting the remaining pipelines through the locking piece to complete the pipe side connection, which greatly improves the stability of the pipe side connection.

[0023] 2. A sealing ring is arranged on the lower end surface of the first annular boss of the pipe connector, which can effectively improve the sealing performance between the pipe connector and the outer wall of the pipe and prevent water leakage.

[0024] 3. An external fixing sleeve with a curved surface structure can also be arranged on the outside of the pipe connector. The curved surface structure can be fixed to the outer circumferential surface of the pipe by hot melting, so as to further enhance the sealing and stability of the connection between the pipe connector and the pipe and extend the service life of the side-connected pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is an exploded view of the parts of Example 1;

[0026] Figure 2 It is a structural cross-sectional view of Example 1;

[0027] Figure 3 for Figure 2 A partial enlarged view of

[0028] Figure 4 This is a schematic structural diagram of a pipeline connector according to Example 1;

[0029] Figure 5 This is a pipeline side connection flow chart of Example 1;

[0030] Figure 6 This is a cross-sectional view of the pipeline side connection process of Example 1;

[0031] Figure 7 It is an exploded view of the parts of Example 2;

[0032] Figure 8 It is a structural cross-sectional view of Example 2;

[0033] Fig. 9 for Figure 8 A partial enlarged view of

[0034] Fig.10 This is a pipeline side connection flow chart of Example 2;

[0035] Fig.11 This is a cross-sectional view of the pipeline side connection process of Example 2.

[0036] Marked in the figure are: pipe connector 1, groove 11, first annular boss 12, second annular boss 13, petal structure 14, second external thread structure 15, inner fixing sleeve 2, first external thread structure 21, locking member 3, pipe 4, pipe opening 41, sealing ring 5, outer fixing sleeve 6, annular clamping edge 61, curved surface structure 62. DETAILED DESCRIPTION

[0037] Example 1

[0038] The pipeline side connection structure described in this embodiment includes a pipeline connector 1, an internal fixing sleeve 2 and a locking member 3; a circle of grooves 11 are provided on the outer circumference of the pipeline connector 1, and a first annular boss 12 and a second annular boss 13 are provided on the upper and lower sides of the groove 11 respectively, and the outer diameters of the first annular boss 12 and the second annular boss 13 are both larger than the inner diameter of the pipeline opening 41; a plurality of petal structures 14 are provided at the lower end of the pipeline connector 1, openings are provided between the petal structures 14, and the openings extend to the top of the second annular boss 13, so that the second annular boss 13 is divided into a plurality of arc-shaped protrusions, and the arc-shaped protrusions and the petal structures 14 can be slightly deformed inward.

[0039] The inner side of the lower end of the pipe connector 1 is provided with an internal thread structure, and the thread structure extends to the inner side of the petal structure 14; the inner fixing sleeve 2 is inserted into the pipe connector 1, and the outer side of the inner fixing sleeve 2 is provided with a first external thread structure 21, which is threadedly matched with the lower end of the pipe connector 1 and the petal structure 14. When the inner fixing sleeve 2 is screwed in, the previously deformed second annular boss 13 and the petal structure 14 can be opened, so that the second annular boss 13 is stuck at the pipe opening 41 to prevent the pipe connector 1 from falling off. At the same time, the inner wall or top surface of the inner fixing sleeve 2 is provided with a groove or a polygonal hole, which is convenient for the rotating tool to drive the inner fixing sleeve to lock.

[0040] The petal-shaped structure 14 at the lower end of the pipe connector 1 can be folded inward and inserted into the pipe opening 41, the second annular boss 13 abuts against the inner wall of the pipe opening 41, and the first annular boss 12 abuts against the outer wall of the pipe opening 41. A groove is provided on the lower end surface of the first annular boss 12, and a sealing ring 5 is provided in the groove, which fits tightly against the outer wall of the pipe opening 41.

[0041] The upper end of the pipe connector 1 is provided with a second external thread structure 15, and the locking member 3 is sleeved on the outer side of the pipe connector 1, and the two are threadedly matched. The lower end of the locking member 3 abuts against the first annular boss 12, and the upper end of the locking member 3 can be connected to other joints, thereby completing the side pipe work.

[0042] Pipeline side connection includes the following steps:

[0043] 1) Open a pipeline opening 41 of a suitable size on the pipeline 4, and select a pipeline connector 1 of a suitable specification according to the opening size;

[0044] 2) Insert the lower end of the pipe connector 1 into the pipe opening 41, and the second annular boss 13 and the petal-shaped structure 14 can be inserted into the pipe opening 41 by deformation;

[0045] 3) Insert the inner fixing sleeve 2 into the pipe connector 1, rotate the inner fixing sleeve 2, so that the inner fixing sleeve 2 opens the deformed second annular boss 13 and the petal-shaped structure 14, and threadably engages with them, so that the second annular boss 13 abuts against the inner wall of the pipe opening 41;

[0046] 4) The locking member 3 is mounted on the outside of the pipe connector 1 , and the two are threadedly matched, so that the pipe connector 1 can be fixed on the pipe opening 41 .

[0047] Example 2

[0048] This embodiment is similar in structure to the embodiment 1, except that: this embodiment further comprises an outer fixing sleeve 6, the upper end of which is provided with an annular clamping edge 61, and the lower end is provided with a curved surface structure 62; the outer fixing sleeve 6 is sleeved on the outer side of the pipe connector 1, the annular clamping edge 61 abuts against the first annular boss 12, and the lower end of the locking member 3 abuts against the annular clamping edge 61 at the top of the outer fixing sleeve 6. The curved surface structure 62 of the outer fixing sleeve 6 fits the outer circumference of the pipe 4, and is fixedly connected by glue or hot melt.

[0049] Pipeline side connection includes the following steps:

[0050] 1) Open a pipeline opening 41 of a suitable size on the pipeline 4, and select a pipeline connector 1 of a suitable specification according to the opening size;

[0051] 2) Insert the lower end of the pipe connector 1 into the pipe opening 41, and the second annular boss 13 and the petal-shaped structure 14 can be inserted into the pipe opening 41 by deformation;

[0052] 3) Insert the inner fixing sleeve 2 into the pipe connector 1, rotate the inner fixing sleeve 2, so that the inner fixing sleeve 2 opens the deformed second annular boss 13 and the petal-shaped structure 14, and threadably engages with them, so that the second annular boss 13 abuts against the inner wall of the pipe opening 41;

[0053] 4) The outer fixing sleeve 6 is mounted on the outside of the pipe connector 1, the curved surface structure 62 is fitted to the outer circumference of the pipe 4, and fixed by hot melting;

[0054] 5) The locking piece 3 is mounted on the outside of the pipe connector 1 , the two are threadedly matched, and the lower end of the locking piece 3 is in contact with the annular clamping edge 61 at the top end of the outer fixing sleeve 6 .

[0055] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A pipeline side connection structure, characterized in that: It includes a pipe connector, an inner fixing sleeve and a locking piece; The pipe connector is provided with a circle of clamping grooves on its outer circumference, and the first annular boss and the second annular boss are provided on the upper and lower sides of the clamping groove respectively; the pipe connector is provided with a plurality of petal-shaped structures at its lower end, and openings are provided between the petal-shaped structures, and the openings extend to the upper side of the second annular boss; the pipe connector is provided with a threaded structure on the inner side of its lower end, and the threaded structure extends to the inner side of the petal-shaped structure; The inner fixing sleeve is inserted into the pipe connector and is threadedly matched with the lower end of the pipe connector and the petal-shaped structure; The upper end of the pipe connector is provided with an external thread structure, and the locking piece is sleeved on the outside of the pipe connector, and the two are threadedly matched.

2. A pipeline side connection structure according to claim 1, characterized in that: The petal-shaped structure at the lower end of the pipe connector can be folded inwards and inserted into the pipe opening, the second annular boss abuts against the inner wall of the pipe opening, and the first annular boss abuts against the outer wall of the pipe opening.

3. A pipeline side connection structure according to claim 2, characterized in that: A groove is provided on the lower end surface of the first annular boss, and a sealing ring is provided in the groove, which fits tightly with the outer wall of the pipeline opening.

4. A pipeline side connection structure according to claim 1, characterized in that: It also includes an external fixing sleeve, which has an annular clamping edge at the upper end and a curved surface structure at the lower end; the external fixing sleeve is sleeved on the outside of the pipe connector, the annular clamping edge abuts against the first annular boss, and the lower end of the locking piece abuts against the annular clamping edge at the top end of the external fixing sleeve.

5. A pipeline side connection structure according to claim 4, characterized in that: The curved surface structure of the outer fixing sleeve fits the outer circumference of the pipeline.

6. A pipeline side connection structure according to claim 5, characterized in that: The curved surface structure of the outer fixing sleeve is fixedly connected to the outer circumference of the pipeline by glue or hot melting.

7. A pipeline side connection method, characterized in that: The following steps are involved: 1) Open an opening of appropriate size on the pipeline and select pipeline connectors of appropriate specifications according to the opening size; 2) Insert the lower end of the pipe connector into the pipe opening, and the second annular boss and the petal-shaped structure can be inserted into the pipe opening by deformation; 3) Insert the inner fixing sleeve into the pipe connector, rotate the inner fixing sleeve, so that the inner fixing sleeve opens the deformed second annular boss and the petal-shaped structure, and threadably engages with the second annular boss, so that the second annular boss abuts against the inner wall of the pipe opening; 4) Put the locking piece on the outside of the pipe connector, and the two threads fit together.

8. A pipeline side connection method according to claim 7, characterized in that: Before step 4), the outer fixing sleeve is put on the outside of the pipe connector, the curved surface structure fits the outer circumference of the pipe, and after the locking piece is put on the outside of the pipe connector, the lower end of the locking piece abuts against the annular clamping edge at the top of the outer fixing sleeve.

9. A pipeline side connection method according to claim 8, characterized in that: The curved surface structure of the outer fixing sleeve is fixed to the outer circumferential surface of the pipeline by hot melting.

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