Combination of pipe and pipe joint

Abstract

The utility model provides a combination of a pipe and a pipe joint. The combination comprises the pipe, the pipe joint and at least one combination pin. The pipe is provided with continuous annular protruding parts and annular concave parts in the length direction of the pipe. According to the pipe joint, continuous battens are spirally wound to form a hollow ring body, the adjacent battens are combined together through viscose, the viscose and the battens are made of the same material, openings are formed in the two sides of the ring body to contain the pipe, and the inner diameter of the ring body is slightly larger than the outer diameter of the pipe. The ring body is provided with a radial through hole, and a combination pin penetrates through the radial through hole and the annular concave part of the pipe to fix the connection of the ring body and the pipe. Compared with a traditional fixed joint, the pipeline joint has the advantages that the pipeline joint can be quickly disassembled and assembled, pipeline maintenance, replacement or size adjustment is facilitated, a large number of molds do not need to be manufactured to adapt to different sizes, manufacturing cost is reduced, and economic benefits are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a drain pipe, in particular to a drain pipe structure convenient to disassemble. BACKGROUND

[0002] The connecting mode of the conventional drain pipe needs to drill holes on the PVC pipe for processing, resulting in slow installation speed and low efficiency. To solve this problem, the utility model creator has proposed a drain pipe with a quick connector and an assembly structure (see Utility Model Patent No. M622437). However, this technology still has some room for improvement.

[0003] One of the main problems is that the drain pipe needs to be disassembled and reassembled when it is repaired or replaced in size. However, the traditional fixed connector design is not easy to disassemble, increasing the difficulty of maintenance and adjustment.

[0004] Another problem is that the size of the drain pipe is diverse, and most existing connectors are made of plastic injection. If a larger size connector needs to be produced, the mold cost is high, and as the size increases, the investment cost also increases significantly, resulting in reduced economic benefits SUMMARY

[0005] The utility model is a combination of a pipe and a pipe connector, which includes a pipe with a continuous annular protrusion on the surface of the pipe body in the length direction, and an annular recess between adjacent annular protrusions; a pipe connector, which is a hollow ring, has an open mouth on both sides of the ring, and the ring has radial perforations; at least one combination pin, the pipe is placed in the pipe connector, the combination pin is placed in the radial perforations of the pipe connector and the annular recess of the pipe, and the pipe and the pipe connector are combined and fixed together.

[0006] In one embodiment, the pipe connector is formed by winding a continuous strip, and the adjacent strips are combined together by adhesive.

[0007] In one embodiment, multiple pipe connectors are obliquely cut, and the oblique surfaces of each pipe connector are welded to form pipe connectors of different shapes

[0008] In one embodiment, the length direction of the strip is provided with a convex strip to form a continuous annular convex strip on the surface of the pipe connector. In one embodiment, the combination pin includes a rod body and a rod head, the front end of the rod body has a conical portion, the conical portion has a front end and a rear end, the outer diameter of the rear end is greater than the outer diameter of the front end, and the outer diameter of the rear end is greater than the outer diameter of the rod body, the rod body is located in the radial perforation, the conical portion is located in the annular recess of the pipe, and the rod head is attached to the surface of the pipe connector.

[0009] In one embodiment, the coupling pin has an axial center hole, and the coupling pin also has a long hole extending from the rod body to the rod head, and the center hole is radially open to the outside of the coupling pin through the long hole.

[0010] In one embodiment, a continuous strip is spirally wound to form a hollow ring body, and each side of the ring body has an open port, and adjacent strips are bonded together by adhesive.

[0011] In one embodiment, the material of the strip and the adhesive is PE, PP or ABS.

[0012] In one embodiment, a protrusion is arranged in the length direction of the strip to form a continuous ring protrusion on the surface of the pipe joint.

[0013] In one embodiment, a plurality of pipe joints are obliquely cut, and the oblique surfaces of each pipe joint are fused to form pipe joints of different shapes.

[0014] The utility model has the following beneficial effects:

[0015] 1. Improve the structural strength:

[0016] By high-temperature melting of plastic adhesive of the same material, the bonding part is integrated, ensuring the stability of the pipe joint and the pipe connection structure, and the continuous ring protrusion on the outer surface of the pipe joint enhances the overall strength and improves the pressure resistance and durability.

[0017] 2. Easy to maintain and strong in size adaptability:

[0018] The coupling pin of the utility model is provided with a tapered portion and an axial center hole, and a long hole is arranged in the rod body and the rod head to form a resilient structure, which can be elastically deformed to support the radial perforation in the pipe joint when locked in. The main advantage of this mechanism is that it can be firmly fixed through the expansion mechanism without the need for threaded locking, ensuring stable connection and avoiding the influence of vibration or external force. When needed, the coupling pin can also be removed, facilitating the disassembly of the pipe and the pipe joint. Compared with the traditional fixed joint, the utility model can be quickly disassembled, facilitating pipeline repair, replacement or size adjustment.

[0019] 3. Reduce manufacturing cost and improve economic benefit:

[0020] Most existing joints are made by plastic injection molding, and different sizes require different molds. Large-size joints require large molds, which are expensive. The utility model uses strip winding forming technology, which can be wound and cut to different sizes as needed. Only one inexpensive extrusion molding mold can be used to manufacture pipe joints of various sizes, which can reduce manufacturing cost and also adapt to different pipe diameters, reducing inventory and production cost problems caused by excessive size specifications.

[0021] 4. Adapt to various pipe connection needs:

[0022] In addition to the straight pipe joint, the utility model also can design as L, four-way pipe structure, etc. Multichannel pipe structure, and can adjust the opening angle according to demand, compared with traditional fixed joint, more flexible and adaptable.

[0023] In conclusion, the utility model solves the problems of inconvenient installation, difficult maintenance and high manufacturing cost in traditional technology, provides a kind of pipe and pipe joint combination design of quick installation, high strength and strong adaptability, has more excellent technical and economic advantages. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the appearance schematic view of the combination of pipe and pipe joint of the utility model.

[0025] Figure 2 It is the appearance schematic view of the pipe joint one embodiment of the utility model.

[0026] Figure 3 It is the schematic view of the hollow ring body of the batten screw of the utility model.

[0027] Figure 4 It is the sectional view of the batten and adhesive bonding before the utility model.

[0028] Figure 5 It is the sectional view of the batten and adhesive bonding after the utility model.

[0029] Figure 6 It is a part of the front view of the batten of the utility model.

[0030] Figure 7 It is the side view of the combination pin of the utility model.

[0031] Figure 8 It is the upper view of the combination pin of the utility model.

[0032] Figure 9 It is the combination sectional schematic view of the pipe and pipe joint of the utility model.

[0033] Figure 10 It is the appearance schematic view of another embodiment of the pipe joint of the utility model.

[0034] Figure 11 It is the appearance schematic view of another embodiment of the pipe joint of the utility model.

[0035] REFERENCE SIGNS

[0036] 100: the combination of pipe and pipe joint;

[0037] 10: pipe;

[0038] 20: pipe joint;

[0039] 30: coupling pin;

[0040] 11: annular protrusion;

[0041] 12: annular recess;

[0042] 15: central through hole;

[0043] 201: strip;

[0044] 22: ring body;

[0045] 202: adhesive;

[0046] 23: open mouth;

[0047] 221: radial perforation;

[0048] 24: convex strip;

[0049] 241: annular convex strip;

[0050] 31: rod body;

[0051] 32: rod head;

[0052] 33: tapered portion;

[0053] 331: front end;

[0054] 332: rear end;

[0055] 34: axial central hole;

[0056] 35: long hole. DETAILED DESCRIPTION

[0057] In order to have a further understanding and recognition of the features and characteristics of the present application, the following preferred embodiments are listed and described below in conjunction with the drawings:

[0058] Please refer to Figures 1-4 , in an embodiment, the combination of the pipe and the pipe joint 100 of the present application comprises a pipe 10, a pipe joint 20 and at least one coupling pin 30.

[0059] In the embodiment, the pipe 10 has continuous annular protrusions 11 on the surface of the pipe body in the length direction, and has annular recesses 12 between adjacent annular protrusions 11. The pipe 10 has a central through hole 15 for fluid flow.

[0060] In an embodiment, the pipe joint 20 is formed by winding a continuous strip 201 into a hollow ring body 22 (see Figure 3 ), and adjacent strips 201 are combined together by adhesive 202 (see Figure 4), the pipe joint 20 is formed by cutting and welding the pipe joint 20 at an angle. To ensure the structural strength and sealing performance of the pipe joint 20, the ring body 22 has an opening 23 on each side, so that the pipe 10 can be inserted into the opening 23, and the inner diameter of the pipe joint 20 is slightly larger than the maximum outer diameter of the pipe 10, that is, the outer diameter of the annular protrusion 11, to ensure that the pipe body can be smoothly inserted. In addition, the ring body 22 of the pipe joint 20 is provided with radial perforations 221, the number and position of the radial perforations 221 are arbitrary and can be made as required, and the radial perforations 221 are combined with the annular recess 12 of the pipe 10 by passing through the radial perforations 221 and the annular recess 12 of the pipe 10 to fix the connection between the pipe 10 and the pipe joint 20 (see Figure 9 ), in addition, the board 201 must be cut flat on both sides after being wound into a hollow ring body 22 to complete the outer shape of the pipe joint 20.

[0061] Please refer to Figures 4-6 In an embodiment, the board 201 and the adhesive 202 used are made of the same plastic material, and the suitable plastic materials include but are not limited to polyethylene (PE), polypropylene (PP), or acrylonitrile-butadiene-styrene (ABS), so that they can achieve good compatibility and bonding strength after being combined. In use, the adhesive 202 is heated to about 200°C or higher and uniformly coated on the surface of the adjacent board 201. Due to the high temperature, the board 201 at this position is partially melted and integrated with the adhesive 202. The cooled adhesive 202 is also in a solid state and serves as part of the thickness of the pipe joint 20, further improving the strength of the pipe joint 20 and forming a more stable structure.

[0062] In this embodiment, the surface of the board 201 in the length direction is provided with a convex strip 24 to form a continuous annular convex strip 241 on the outer surface of the pipe joint 20. This structure helps to enhance the strength of the pipe body and provides more stable connection effect in use.

[0063] Please refer to Figures 7-9As shown, in one embodiment, the coupling pin 30 comprises a shaft 31 and a head 32, wherein the shaft 31 is an elongated columnar structure with an outer diameter substantially equal to the inner diameter of the radial through-hole 221 of the ring body 22, and the front end of the shaft 31 has a tapered portion 33 with a front end 331 and a rear end 332, the outer diameter of the rear end 332 is larger than that of the front end 331, and the outer diameter of the front end 331 is slightly smaller than the inner diameter of the radial through-hole 221 of the ring body 22, while the outer diameter of the rear end 332 is slightly larger or equal to the inner diameter of the radial through-hole 221 of the ring body 22; the head 32 is located at the rear end of the shaft 31, and has an outer diameter larger than the inner diameter of the radial through-hole 221 of the ring body 22, so as to ensure that the coupling pin 30 cannot completely pass through the radial through-hole 221 of the ring body 22, and the pipe 10 and the pipe joint 20 can be fixedly connected through the coupling pin 30; the coupling pin 30 is internally provided with an axial center hole 34 and a long hole 35 extending from the shaft 31 to the head 32, which are in communication with each other, so that the coupling pin 30 can be elastically deformed when subjected to force.

[0064] Further, when the front end of the tapered portion 33 enters the radial through-hole 221, the rear end 332 will be extruded by the inner wall of the hole due to its outer diameter being slightly larger than the inner diameter of the radial through-hole 221, and an external force is required to press it into the radial through-hole 221, and after the rear end 332 passes through the radial through-hole 221, the shaft 31 enters the radial through-hole 221 and is clamped in the radial through-hole 221 through its elasticity, at this time, the tapered portion 33 is inserted into the annular recess 12 of the pipe 10, and the head 32 is attached to the surface of the pipe joint 20, so that the coupling pin 30 cannot move in and out and is fixed, thereby fixing the pipe 10 and preventing it from moving in the length direction.

[0065] In Figures 1-2 one embodiment, the pipe joint 20 is a straight pipe, and the two open ports 23 are arranged at 180 degrees. In Figure 10 one embodiment, the pipe joint 20 is an L-shaped pipe, also having two open ports 23, and the two open ports 23 are arranged at 90 degrees. In addition, in other embodiments, it can also be a multi-way pipe with more than three ways, for example, as shown in Figure 11 , it is a four-way pipe, having four open ports 23, and adjacent open ports 23 are arranged at 90 degrees. Of course, the aforementioned multi-way pipe can also be arranged at different angles, so that adjacent open ports 23 can be in different angular relationships. After cutting the plurality of pipe joints 20 at an angle, the cut surfaces of each pipe joint 20 are fused to form pipe joints 20 of different shapes. Specifically, the L-shaped pipe or multi-way pipe joint 20 is cut at an angle, and then the cut surfaces of the pipe joints are bonded together by hot melting material of the same material.

[0066] In all the embodiments of the utility model, each opening 23 is matched with a pipe 10, therefore, the pipe 10 can be configured and connected with different angles according to the terrain and environment, and the pipe joint 20 in the utility model is different in shape, and other structural features are the same as those of the embodiments, please refer to. Figures 1-3

[0067] The above is only the preferred embodiment provided by the utility model, and is not used to limit the implementation range of the utility model, and all equivalent changes according to the utility model by the technical personnel in the technical field should belong to the range covered by the utility model.​

Claims

1. A pipe and pipe joint combination, characterised in that, The utility model relates to a pipe joint and a pipe joint combination, comprising: a pipe, which has continuous annular protrusions on the pipe surface in the length direction of the pipe, and annular recesses between adjacent annular protrusions; a pipe joint, which is a hollow ring body, has an open mouth on each side of the ring body, and is provided with radial perforations; at least one coupling pin; the pipe is inserted into the pipe joint, the coupling pin is inserted into the radial perforations of the pipe joint and the annular recesses of the pipe, and the pipe and the pipe joint are coupled and fixed together.

2. The tube-to-tube joint combination of claim 1, wherein, The pipe joint is formed by winding a continuous strip, and adjacent strips are coupled together by adhesive.

3. The tube-to-tube joint combination of claim 2, wherein, After multiple pipe joints are cut at an angle, the cut surfaces of each pipe joint are fused to form pipe joints of different shapes.

4. The tube-to-tube joint combination of claim 2, wherein, The length direction of the strip is provided with a protrusion to form a continuous annular protrusion on the surface of the pipe joint.

5. The tube-to-tube joint combination of claim 1, wherein, The coupling pin comprises a rod body and a rod head, the front end of the rod body is provided with a tapered portion, the tapered portion has a front end and a rear end, the outer diameter of the rear end is larger than that of the front end, and the outer diameter of the rear end is larger than that of the rod body, the rod body is located in the radial perforation, the tapered portion is located in the annular recess of the pipe, and the rod head is attached to the surface of the pipe joint.

6. The tube-to-tube joint combination of claim 5, wherein, The coupling pin has an axial central hole, and also has a long hole extending from the rod body to the rod head, and the central hole is radially connected to the outside of the coupling pin through the long hole.

7. A pipe joint, characterized in that The pipe joint is formed by winding a continuous strip, and adjacent strips are coupled together by adhesive.

8. The pipe joint of claim 7, wherein, The material of the strip and the adhesive is PE, PP or ABS.

9. The pipe joint of claim 7 or 8, wherein The length direction of the strip is provided with a protrusion to form a continuous annular protrusion on the surface of the pipe joint.

10. The pipe joint of claim 7, wherein, After multiple pipe joints are cut at an angle, the cut surfaces of each pipe joint are fused to form pipe joints of different shapes.

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