Pipeline connecting piece of branch pipe and method for arranging branch pipe on pipeline

Abstract

The invention discloses a pipeline connecting piece of a branch pipe and a method for arranging the branch pipe on a pipeline, solves the problems in the prior art, and has the beneficial effects that the pipeline connecting piece of the branch pipe comprises a main body piece and a cover body, the main body piece and the cover body are both arc-shaped, a guide section is arranged in the middle of the main body piece, and the guide section is arranged in the middle of the cover body; the guiding section is provided with a guiding hole to be connected with the branch pipe, the inner surface of the main body piece is provided with a ring bin on the circumferential outer side of the guiding hole to be provided with a sealing ring, the inner side wall of the ring bin is provided with at least one positioning groove, the positioning groove is communicated with the guiding hole, and the inner side face of the sealing ring is provided with a protruding portion which is clamped into the positioning groove when the sealing ring is placed into the ring bin. The sealing ring is internally positioned through the inner side of the ring bin, so that pressure is transmitted outwards from the inner side to avoid displacement of the sealing ring, a medium pressure transmission cavity is formed in the sealing ring, a liquid or gas medium is introduced into the medium pressure transmission cavity, and the fastening piece can be connected with the main body piece and the cover body in a fastening mode.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline connection, in particular to a pipeline connector for a branch pipe and a method for arranging a branch pipe in a pipeline. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] At present, the connection methods of pipeline systems with branch pipes mainly include branch pipe welding, grooved tee connection, and open-hole piping system. Among them, the open-hole piping system provides a simple and fast branch pipe installation and construction method, eliminating the design disadvantages of welding or using reducing tees and clamps. You only need to make a hole of the specified size at the part where the pipe needs to branch, and then install the mechanical tee to complete the installation of the piping system. Therefore, it is very convenient for both the installation of new pipelines and the maintenance and renovation of old pipelines.

[0004] In actual applications, it is found that when the existing mechanical tee is pressurized after installation, because the sealing ring is positioned from the outside, after the pipeline is connected to the branch pipe, when the fluid in the pipeline passes through the connection between the two, due to the positioning groove provided on the outside of the sealing ring, the sealing ring is squeezed by the force pressure and moves outward, thereby causing the sealing ring to shift (for example, Chinese patent application CN202410656717.5, a mechanical tee with strong sealing performance), which is prone to leakage between the rubber ring and the pipeline and cannot withstand higher pressure.

[0005] In addition, when installing a mechanical tee, when tightening the nuts at both ends of the clamp connector with an electric wrench, due to the large torque of the electric wrench, it is often the case that the nut on one end is fully tightened before tightening the nut on the other end, instead of tightening the nuts on both ends evenly in turn, resulting in the clamp connector breaking at the bolt seat due to excessive or uneven force. Summary of the invention

[0006] In view of the deficiencies in the prior art, an object of the present invention is to provide a pipe connector for a branch pipe, which can avoid leakage problems at the connection between the branch pipe and the pipeline and can withstand higher pressure.

[0007] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0008] A pipe connector for a branch pipe comprises a main body and a cover body, both of which are arc-shaped, a guide section is arranged in the middle of the main body, a guide hole is arranged in the guide section to be connected with the branch pipe, a ring bin is arranged on the inner surface of the main body on the circumferential outer side of the guide hole to arrange a sealing ring, at least one positioning groove is arranged on the inner side wall of the ring bin, the positioning groove is communicated with the guide hole, a convex portion is arranged on the inner side of the sealing ring, the convex portion is stuck in the positioning groove when the sealing ring is placed in the ring bin, the sealing ring is internally positioned through the inner side of the ring bin so that the pressure is transmitted from the inside to the outside to avoid displacement of the sealing ring, a medium pressure transmission chamber is arranged inside the sealing ring, a liquid or gas medium is passed in the medium pressure transmission chamber, and a fastener can fasten the main body and the cover body.

[0009] In the pipe connector for a branch pipe as described above, the shape of the protrusion is compatible with the shape of the positioning groove, and the depth of the positioning groove is greater than the depth of the ring bin, so that the protrusion of the sealing ring is inserted into the positioning groove, ensuring the stability and reliability of the sealing ring setting.

[0010] As described above, in a pipe connector for a branch pipe, taking into account the structural setting of the sealing ring, the depth of the ring bin is less than the thickness of the sealing ring so that the sealing ring can be exposed outside the ring bin, and the width of the portion of the sealing ring exposed outside the ring bin is greater than or equal to the width of the sealing ring inside the ring bin. A plurality of protruding blocks are arranged on the inner side wall of the ring bin toward the cover body, and some of the protruding blocks are arranged on both sides of the positioning groove. The protruding blocks extend beyond the sealing ring to engage with the pipe openings, and the protruding blocks engage with the pipe openings to position the main body. After the protruding blocks of the main body are inserted into the pipe openings, the sealing ring contacts the pipe to seal the pipe.

[0011] In the pipe connector for a branch pipe as described above, the width of the positioning groove gradually increases from one side of the guide hole away from the cover body to the other side, and the depth of the positioning groove is less than the length of the guide hole to ensure that the protrusion is inserted into the positioning groove.

[0012] In the branch pipe pipe connector as described above, the middle portion of the cover body is concave inwardly in a direction away from the pipe to reduce the contact area with the pipe.

[0013] In the pipe connector for a branch pipe as described above, bolt seats are respectively arranged at both ends of the main body and the cover body, and the fastener is arranged through the bolt seat of the main body and the bolt seat of the cover body.

[0014] In a pipe connector for a branch pipe as described above, a first limit seat is provided on the side of the main body bolt seat facing the cover body bolt seat, and a second limit seat is provided on the side of the cover body bolt seat facing the main body bolt seat. The first limit seat and the second limit seat are located on the outside of the fastener. When the main body and the cover body are assembled, the first limit seat contacts the second limit seat to play a limiting role to prevent excessive torque from damaging the main body.

[0015] In a pipe connector for a branch pipe as described above, the first limit seat is a first protrusion facing the cover body, and the second limit seat is a second protrusion facing the main body. When the main body and the cover body are aligned and installed, the first protrusion contacts the second protrusion, and when the main body and the cover body are docked, the first protrusion and the second protrusion are placed in the same plane.

[0016] In the pipe connector for a branch pipe as described above, the surface of the bolt seat in contact with the fastener is provided with anti-skid grooves, which have anti-skid and shock-absorbing effects, can effectively increase friction and prevent the nut from loosening.

[0017] In a second aspect, the present invention provides a method for setting a branch pipe in a pipeline, using a pipeline connector of a branch pipe, comprising the following contents:

[0018] Make holes in the pipe where holes are needed;

[0019] Place the sealing ring into the ring compartment of the main body, and insert the convex part of the sealing ring into the positioning groove inside the ring compartment;

[0020] The fastener on one side connects the main body and one side of the cover body, and the cover body and the main body are staggered to form an assembly structure;

[0021] Install the assembly structure to the pipe where the hole has been opened. Align the guide hole of the main part with the pipe hole, insert the branch pipe into the guide hole, rotate the cover body around the pipe so that the cover body comes under the main part. The fasteners on the other side connect the main part and the other side of the cover body. Tighten the fasteners on both sides alternately and evenly.

[0022] The beneficial effects of the present invention are as follows:

[0023] 1) The pipeline connector in the present invention includes a main body and a cover body. The main body is provided with a ring bin for installing the sealing ring. The inner wall of the ring bin is provided with a positioning groove, so that the sealing ring can be positioned from the inside of the sealing ring when the sealing ring is installed, and the external positioning in the prior art is converted to internal positioning. After the branch pipe is installed at the guide hole, the internal fluid applies pressure to the branch pipe and the sealing ring, so that the pressure is transmitted from the inside to the outside, effectively avoiding the displacement of the sealing ring. The convex part of the sealing ring can contact with the branch pipe to play a certain sealing role; a medium pressure transmission chamber is provided inside the sealing ring. When working, the sealing ring is subjected to the pressure of the internal fluid at the branch pipe and acts on the medium inside the medium pressure transmission chamber. The medium pressure transmission chamber changes with the change of the fluid pressure. The higher the pressure, the better the sealing performance, thereby ensuring the overall sealing performance and avoiding the occurrence of leakage.

[0024] 2) In the present invention, the depth of the positioning groove is greater than the depth of the ring bin, and the depth of the ring bin is less than the thickness of the sealing ring, so that the sealing ring can be exposed outside the ring bin, so that the side of the sealing ring away from the main body is in contact with the pipeline to ensure the sealing with the pipeline, and a plurality of protruding blocks are arranged on the inner wall of the ring bin, and some of the protruding blocks are arranged on both sides of the positioning groove. The pipeline opening is engaged with the protruding blocks to realize the positioning and connection of the main body. After the protruding block of the main body is inserted into the pipeline opening, the sealing ring contacts the pipeline to seal the pipeline.

[0025] 3) In the present invention, a first limit seat is set on the bolt seat of the main body, and a second limit seat is set on the bolt seat of the cover body. The first limit seat and the second limit seat are located on the outside of the fastener. When the main body and the cover body are assembled, the first limit seat is in contact with the second limit seat, and the bolt seat is no longer subjected to force, so as to avoid the bolt seat being suddenly subjected to a large force when the torque of the wrench is too large, causing breakage, and preventing the main body from being damaged by excessive torque, thereby ensuring the smooth installation of the product.

[0026] 4) In the present invention, the surface where the bolt seat contacts the fastener is provided with anti-skid grooves, which have anti-skid and shock-absorbing effects, can effectively increase friction, prevent the nut from loosening, reduce installation torque, facilitate installation, facilitate the transmission of vibration, and reduce vibration.

[0027] 5) The present invention provides an overall structure with a convex portion on the inner side of the sealing ring, and provides a positioning groove on the inner side of the rubber ring of the main body. The positioning groove and the convex portion are provided to facilitate the positioning of the sealing ring and the installation of the sealing ring, and effectively avoid the problem of displacement of the sealing ring at the ring bin. A medium pressure transmission cavity is provided inside the sealing ring, which can change with the change of fluid pressure in the pipeline to ensure the sealing performance of the connecting piece at the branch pipe. The first limit seat and the second limit seat can play a limiting role when the main body and the cover body are installed to prevent damage to the main body, and the fasteners on both sides are tightened alternately and evenly to further avoid damage to the main body or the cover body at the bolt seat, thereby ensuring smooth installation of the whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0029] Figure 1 It is a front view of a pipe connector for a branch pipe according to one or more embodiments of the present invention.

[0030] Figure 2 It is a front view of a main body of a pipe connector for a branch pipe according to one or more embodiments of the present invention.

[0031] Figure 3It is a side view of a main body in a pipe connector for a branch pipe according to one or more embodiments of the present invention.

[0032] Figure 4 It is a schematic diagram of providing a sealing ring at a ring bin of a pipe connector of a branch pipe according to one or more embodiments of the present invention.

[0033] Figure 5 A side view of a sealing ring arranged at a ring bin in a pipe connector of a branch pipe according to one or more embodiments of the present invention Figure 1 (Internal thread is set in the guide section).

[0034] Figure 6 A side view of a sealing ring arranged at a ring bin in a pipe connector of a branch pipe according to one or more embodiments of the present invention Figure 2 (An annular groove is arranged in the annular direction of the guide section).

[0035] Figure 7 It is a schematic diagram of a sealing ring in a pipe connector of a branch pipe according to one or more embodiments of the present invention.

[0036] Figure 8 It is a schematic diagram of a first limit seat and a second limit seat in a pipe connector of a branch pipe according to one or more embodiments of the present invention.

[0037] Fig. 9 It is a top view of a main body in a pipe connector for a branch pipe according to one or more embodiments of the present invention.

[0038] Fig.10 It is a schematic diagram of another anti-slip pattern in a main body of a pipe connector for a branch pipe according to one or more embodiments of the present invention.

[0039] Fig.11 It is a schematic diagram of another anti-slip pattern in a main body of a pipe connector for a branch pipe according to one or more embodiments of the present invention.

[0040] In the figure: the distances or sizes between parts are exaggerated to show the positions of various parts, and the schematic diagram is for reference only.

[0041] Wherein: 1. main body, 2. cover body, 3. bolt, 4. nut, 5. sealing ring, 6. positioning groove, 7. rubber ring, 8. protruding block, 9. guide section, 10. convex part, 11. first limit seat, 12. second limit seat, 13. anti-slip pattern, 14. ring bin. DETAILED DESCRIPTION

[0042] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0043] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless otherwise explicitly stated in the present invention, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "include" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof;

[0044] As introduced in the background technology, the mechanical tee in the prior art is prone to leakage between the sealing ring and the pipeline. In order to solve the above technical problem, the present invention proposes a pipe connector for a branch pipe.

[0045] Embodiment 1

[0046] In a typical embodiment of the present invention, reference is made to Figure 1 , Figure 2 As shown, a pipe connector for a branch pipe includes a main body 1 and a cover body 2, both of which are arc-shaped. A guide section 9 is arranged in the middle of the main body 1, and a guide hole is arranged in the guide section 9 to connect with the branch pipe. A ring bin 14 is arranged on the inner surface of the main body 1 on the circumferential outer side of the guide hole to arrange a sealing ring 5. At least one positioning groove 6 is arranged on the inner side wall of the ring bin 14, and the positioning groove 6 is communicated with the guide hole. A convex portion 10 is arranged on the inner side of the sealing ring 5. When the sealing ring is placed in the ring bin, the convex portion 10 is inserted into the positioning groove 6. The sealing ring is internally positioned through the inner side of the ring bin 14 so that the pressure is transmitted from the inside to the outside, and the sealing ring 5 is not easily displaced. A medium pressure transmission chamber is arranged inside the sealing ring, and liquid or gas medium is passed through the medium pressure transmission chamber. The fastener can fasten the main body 1 and the cover body 2. When working, the medium pressure transmission chamber of the sealing ring is subjected to the fluid pressure transmission in the pipeline. This pressure changes with the change of the medium pressure. The higher the pressure, the better the sealing performance is, and a good seal can be formed at a higher pressure.

[0047] In this embodiment, two positioning grooves 6 are set on the inner wall of the ring bin 14, and the two positioning grooves 6 are arranged opposite to each other and in the same radial direction of the ring bin 14; of course, in other examples, other numbers of positioning grooves can be set at the ring bin 14, such as 4 positioning grooves, and the angle between two adjacent positioning grooves 6 is set, and the number of corresponding protrusions 10 is the same as the number of positioning grooves 6, and the positions are also one-to-one corresponding.

[0048] refer to Figure 3As shown, the shape of the protrusion 10 is compatible with the shape of the positioning groove 6, and the depth of the positioning groove 6 is greater than the depth of the ring bin 14, so that the protrusion 10 of the sealing ring is inserted into the positioning groove 6, ensuring the stability and reliability of the sealing ring setting; from the side of the guide hole away from the cover body 2 to the other side, the width of the positioning groove 6 gradually increases, and the depth of the positioning groove 6 is less than the length of the guide hole, so that the narrower side of the protrusion is first inserted into the positioning groove 6 and gradually engaged with the positioning groove to facilitate the protrusion to be stably inserted into the positioning groove 6.

[0049] Considering the structural setting of the sealing ring 5, the depth of the ring compartment 14 is less than the thickness of the sealing ring 5 so that the sealing ring 5 can be exposed outside the ring compartment 14, and the width of the portion of the sealing ring 5 exposed outside the ring compartment is greater than the width of the sealing ring inside the ring compartment. A plurality of protruding blocks 8 are provided on the inner side wall of the ring compartment 14 toward the cover body 2. Figure 4 and Figure 5 As shown, part of the protruding blocks 8 are arranged on both sides of the positioning groove 6, and the protruding blocks are arranged beyond the sealing ring 5 to engage with the pipeline opening. All the protruding blocks engage with the pipeline opening to realize the positioning of the main body 1. After the protruding blocks 8 of the main body are inserted into the pipeline opening, the sealing ring contacts the pipeline to seal the pipeline. Part of the protruding blocks 8 are arranged on both sides of the positioning groove 6 to limit the inner side of the sealing ring and play a guiding role when the convex part is inserted into the positioning groove. The sealing ring 5 is set in the ring compartment 14. The setting of the protruding blocks 8 also ensures the depth of the positioning groove 6.

[0050] The guide section 9 is a circular tube, and the guide section 9 protrudes from the surface of the main body 1. Figure 5 As shown, the inner side of the guide section is provided with an internal thread for connection with the branch pipe, or refer to Figure 6 As shown, an annular groove is arranged in the annular direction of the guide section, and the guide section and the branch pipe are snap-fitted and connected through the groove, and flange connection or butt welding and other connection methods may also be adopted; it needs to be explained that the inner wall and outer wall of the ring bin 14 are connected as a whole with the guide section 9, and the outer wall of the ring bin is processed into an integrated structure with the main body.

[0051] refer to Figure 7 As shown, along the radial direction of the sealing ring 5, the convex portion 10 of the sealing ring 5 is arranged beyond the inner surface of the sealing ring so that the convex portion can be inserted into the positioning groove 6. After the convex portion 10 is inserted into the positioning groove 6, the outer surface of the convex portion can be flush with the inner surface of the inner side wall of the ring bin. The height of the convex portion 10 is less than the thickness of the sealing ring 5, that is, the end of the convex portion 10 away from the main body 1 is lower than the end of the sealing ring 5 away from the main body 1, which will not affect the close fit between the sealing ring and the pipeline; the width of the sealing ring 5 remains consistent from one side close to the main body 1 to the other side away from the main body 1, or the width of the sealing ring 5 gradually decreases.

[0052] It is easy to understand that bolt seats are respectively arranged at both ends of the main body 1 and the cover body 2 , and fasteners such as bolts 3 are arranged through the main body bolt seats and the cover body bolt seats, and are locked by nuts 4 .

[0053] refer to Figure 8 As shown, a limit seat is provided on the bolt seat, which plays a limiting role when the nut is tightened with a wrench. After the nut is tightened to a set degree, the two limit seat mating surfaces of the main body and the cover body contact and play a limiting role. The bolt seat is no longer subjected to force, so that when the torque of the wrench is too large, the bolt seat is not suddenly subjected to a large force, causing breakage, and preventing the main body from being damaged by excessive torque, thereby ensuring smooth installation of the product.

[0054] A first limit seat 11 is provided on the bolt seat of the main body 1 on the side facing the bolt seat of the cover body, and a second limit seat 12 is provided on the bolt seat of the cover body 2 on the side facing the bolt seat of the main body. The first limit seat 11 and the second limit seat 12 are located on the outside of the fastener. When the main body and the cover body are assembled, the first limit seat 11 contacts the second limit seat 12 to play a limiting role to prevent the main body from being damaged by excessive torque.

[0055] Specifically, the first limit seat 11 is a first protrusion arranged in the middle of the bolt seat of the main body toward the cover body 2, and the second limit seat 12 is a second protrusion arranged in the middle of the bolt seat of the cover body toward the main body. When the main body and the cover body are aligned and installed, the first protrusion contacts the second protrusion. When the main body 1 and the cover body 2 are docked, the first protrusion and the second protrusion are placed in the same plane, and the side of the first protrusion close to the second protrusion is an inclined surface, and the side of the second protrusion close to the first protrusion is also an inclined surface, and the inclined surfaces of the first protrusion and the second protrusion are parallel to each other.

[0056] It should be noted that the width of the first limiting seat 11 and the second limiting seat 12 is smaller than the distance between the outer side of the corresponding bolt seat and the main body or the cover.

[0057] Of course, in other examples, the first limiting seat 11 and the second limiting seat 12 may also be in other shapes, such as a sawtooth structure.

[0058] In addition, the middle part of the cover body 2 is concave inwardly in the direction away from the pipeline, so as to reduce the contact area with the pipeline and avoid the local unevenness of the outer circle of the pipeline affecting the installation of the pipeline.

[0059] refer to Fig. 9 , Fig.10 and Fig.11 As shown, the surfaces where the bolt seat contacts the bolt head and the nut are all provided with anti-skid patterns 13. The anti-skid patterns 13 may be in the form of dots and / or grids and / or anti-skid lines, etc., and have anti-skid and shock-absorbing effects. They can effectively increase friction, prevent the nut from loosening, reduce installation torque, facilitate installation, and facilitate the transmission of vibration and reduce vibration.

[0060] In addition, anti-slip grooves are also provided on the end face of the nut to increase the contact area with the bolt seat, increase friction, prevent the nut from loosening, and reduce installation torque.

[0061] The pipe connector provided in this embodiment includes a main body 1 and a cover body 2. The main body 1 is provided with a ring bin 14 for installing the sealing ring. A positioning groove 6 is provided on the inner side of the ring bin 14. The sealing ring 5 can be positioned from the inside of the sealing ring when the sealing ring 5 is installed, thereby converting the external positioning in the prior art into internal positioning. After the branch pipe is installed at the guide hole, the internal fluid applies pressure to the branch pipe and the sealing ring, so that the pressure is transmitted from the inside to the outside, effectively avoiding the displacement of the sealing ring. In addition, a medium pressure transmission chamber is provided inside the sealing ring. When working, the sealing ring is subjected to the pressure of the internal fluid at the branch pipe and acts on the medium inside the medium pressure transmission chamber. The medium pressure transmission chamber changes with the change of the fluid pressure. The higher the pressure, the better the sealing performance, thereby ensuring the overall sealing performance and avoiding the occurrence of leakage.

[0062] Embodiment 2

[0063] This embodiment provides a method for setting a branch pipe in a pipeline, using a pipeline connector for a branch pipe as described in Embodiment 1, including the following contents:

[0064] At the location where the pipeline needs to be opened, use the existing hole opener to open the hole according to the set size to form the pipeline opening, and remove the sharp corners or burrs around the pipeline opening;

[0065] Place the sealing ring 3 into the ring compartment of the main body 1, and insert the convex part of the sealing ring into the positioning groove inside the ring compartment;

[0066] Pass the bolt 4 on one side through the bolt hole of the main body 1 and the bolt hole of the cover body 2, and install the nut 5 on the bolt 4 so that the thread of the bolt 4 is just flush with the upper edge of the nut 5 to form an assembly structure;

[0067] Install the assembly structure to the pipe where the hole has been opened. Align the center of the guide section of the main body with the center of the hole in the pipe. Insert the branch pipe into the guide hole. Rotate the cover body around the central axis of the pipe so that the cover body and the main body are aligned. The bolts on the other side pass through the bolt holes on the other side of the main body and the cover body, and install the corresponding nuts. Tighten the nuts on both sides alternately and evenly 5.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pipe connector for a branch pipe, characterized in that: The utility model comprises a main body and a cover body, both of which are arc-shaped, a guide section is arranged in the middle of the main body, a guide hole is arranged in the guide section to be connected with the branch pipe, a ring bin is arranged on the inner surface of the main body on the circumferential outer side of the guide hole to arrange a sealing ring, at least one positioning groove is arranged on the inner side wall of the ring bin, the positioning groove is communicated with the guide hole, a convex portion is arranged on the inner side of the sealing ring, the convex portion is stuck in the positioning groove when the sealing ring is placed in the ring bin, the sealing ring is internally positioned through the inner side of the ring bin so that the pressure is transmitted from the inside to the outside to avoid displacement of the sealing ring, a medium pressure transmission cavity is arranged inside the sealing ring, liquid or gas medium is passed in the medium pressure transmission cavity, and the fastener can fasten the main body and the cover body.

2. A branch pipe pipe connector according to claim 1, characterized in that: The shape of the convex portion matches the shape of the positioning groove, and the depth of the positioning groove is greater than the depth of the ring bin.

3. A branch pipe pipe connector according to claim 1, characterized in that: The depth of the ring bin is smaller than the thickness of the sealing ring, the width of the portion of the sealing ring exposed outside the ring bin is greater than or equal to the width of the sealing ring inside the ring bin, and a plurality of protruding blocks are arranged on the inner side wall of the ring bin toward the cover body, some of the protruding blocks are arranged on both sides of the positioning groove, and the protruding blocks are arranged beyond the sealing ring to engage with the pipeline opening.

4. A branch pipe pipe connector according to claim 1, characterized in that: The width of the positioning groove gradually increases from one side of the guide hole away from the cover body to the other side, and the depth of the positioning groove is less than the length of the guide hole.

5. A branch pipe pipe connector according to claim 1, characterized in that: The middle part of the cover body is concave inwardly in a direction away from the pipeline to reduce the contact area with the pipeline.

6. A branch pipe pipe connector according to claim 1, characterized in that: Bolt seats are respectively arranged at both ends of the main body and the cover body, and the fastener is arranged through the main body bolt seat and the cover body bolt seat.

7. A branch pipe pipe connector according to claim 6, characterized in that: The main body bolt seat is provided with a first limit seat on the side facing the cover body bolt seat, and the cover body bolt seat is provided with a second limit seat on the side facing the main body bolt seat. The first limit seat and the second limit seat are located on the outside of the fastener, and the first limit seat is in contact with the second limit seat when the main body and the cover body are assembled.

8. A branch pipe pipe connector according to claim 7, characterized in that: The first limiting seat is a first protrusion facing the cover body, and the second limiting seat is a second protrusion facing the main body. When the main body and the cover body are aligned and installed, the first protrusion contacts the second protrusion.

9. A branch pipe pipe connector according to claim 6, characterized in that: The surface of the bolt seat in contact with the fastener is provided with anti-slip grooves.

10. A method for setting a branch pipe in a pipeline, characterized in that: A pipe connector for a branch pipe according to any one of claims 1 to 9, comprising the following contents: Make holes in the pipe where holes are needed; Place the sealing ring into the ring compartment of the main body, and insert the convex part of the sealing ring into the positioning groove inside the ring compartment; The fastener on one side connects the main body and one side of the cover body, and the cover body and the main body are staggered to form an assembly structure; Install the assembly structure to the pipe where the hole has been opened. Align the guide hole of the main part with the pipe hole, insert the branch pipe into the guide hole, rotate the cover body around the pipe so that the cover body comes under the main part. The fasteners on the other side connect the main part and the other side of the cover body. Tighten the fasteners on both sides alternately and evenly.

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