Pipe connection structure

Abstract

A pipeline connection structure includes a sealing ring, a hard pipe, an assembly and a hoop, wherein a first boss and a second boss are provided on the outer wall of the sealing ring, a mounting cavity is provided in the sealing ring, a first positioning hole and a second positioning hole are provided on the hard pipe, one end of the sealing ring is arranged in the hard pipe, the first boss is arranged in the first positioning hole, the second boss passes through the second positioning hole, one end of the assembly is arranged in the sealing ring, the hoop is sleeved on the hard pipe, and the hoop cooperates with the second boss to fasten the hard pipe, the sealing ring and the assembly. The pipeline connection structure of the present invention can limit the installation position of the hoop, is easy to disassemble and assemble, has good sealing performance, and improves the reliability of the connection between the hard pipe and the assembly.

Description

Technical Field

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

[0002] When designing the intake system, the air pipe is generally divided into two types: soft pipe and hard pipe according to factors such as layout boundary and material. The hard pipe of the air pipe is made of nylon material and cannot be directly assembled with the turbocharger or air filter. It is necessary to add a sealing ring to connect the hard pipe with the hard pipe. The sealing ring is compressed by the hoop to ensure the sealing of the hard pipe of the air pipe and the assembly.

[0003] However, when the hoop is used to fix the air pipe and the assembly, the position of the hoop cannot be fixed, which not only makes assembly difficult, but also fails to ensure the sealing effect. In addition, there is no positioning structure on the existing sealing ring, and the sealing ring is allowed to rotate, so that the pipe mouth connection is not tight. Summary of the invention

[0004] In view of this, the present invention provides a pipeline connection structure, which can limit the installation position of the hoop, is easy to disassemble and assemble, has good sealing performance, and improves the reliability of the connection between the hard pipe and the assembly part.

[0005] A pipeline connection structure includes a sealing ring, a hard pipe, an assembly part and a hoop, wherein a first boss and a second boss are provided on the outer wall of the sealing ring, a mounting cavity is provided inside the sealing ring, a first positioning hole and a second positioning hole are provided on the hard pipe, one end of the sealing ring is arranged in the hard pipe, the first boss is arranged in the first positioning hole, the second boss passes through the second positioning hole, one end of the assembly part is arranged in the sealing ring, the hoop is sleeved on the hard pipe, and the hoop cooperates with the second boss to fasten the hard pipe, the sealing ring and the assembly part.

[0006] In an embodiment of the present invention, a plurality of sealing rings are provided on the cavity wall of the above-mentioned installation cavity, each of the seals is arranged around the axis of the installation cavity, and each of the sealing rings is arranged at intervals along the axis of the installation cavity, and when the hoop tightens the hard tube, the sealing ring and the assembly part, each of the sealing rings elastically rests on the assembly part.

[0007] In an embodiment of the present invention, the sealing ring comprises a first end and a second end opposite to each other, the first end is provided with a blocking ring, the blocking ring is connected to the cavity wall of the mounting cavity, the blocking ring is arranged around the axis of the mounting cavity, and the end of the assembly part abuts against the blocking ring.

[0008] In an embodiment of the present invention, the above-mentioned assembly is provided with a connecting tube that cooperates with the sealing ring, one end of the connecting tube is arranged in the installation cavity, a stopper is provided on the outer wall of the connecting tube, and the second end of the sealing ring abuts against the stopper.

[0009] In an embodiment of the present invention, a limit block is provided at the second end of the sealing ring, and the limit block is arranged on the outer wall of the sealing ring. The limit block is arranged around the axis of the installation cavity, and a limit groove is provided on the side of the limit block close to the hard tube, and the end of the hard tube is arranged in the limit groove.

[0010] In an embodiment of the present invention, the above-mentioned hard tube includes an air intake section and a connecting section, the inner diameter of the air intake section is smaller than the inner diameter of the connecting section, the sealing ring is arranged in the connecting section, and the first positioning hole and the second positioning hole are arranged on the connecting section.

[0011] In an embodiment of the present invention, a positioning groove is provided on the above-mentioned hoop, and the second boss is arranged in the positioning groove, and the second boss cooperates with the positioning groove to position the hoop.

[0012] In an embodiment of the present invention, the above-mentioned second boss includes a column and a limit head, one end of the column is connected to the sealing ring, and the other end of the column is connected to the limit head, the outer diameter of the column is smaller than the outer diameter of the limit head, the column is arranged in the positioning groove, and the limit head is arranged outside the positioning groove.

[0013] In an embodiment of the present invention, the hard tube is an air tube, and the assembly is an air filter or a turbocharger.

[0014] The outer wall of the sealing ring of the pipeline connection structure of the present invention is provided with a first boss and a second boss, a mounting cavity is provided in the sealing ring, a first positioning hole and a second positioning hole are provided on the hard pipe, one end of the sealing ring is arranged in the hard pipe, the first boss is arranged in the first positioning hole, the second boss passes through the second positioning hole, one end of the assembly part is arranged in the sealing ring, the hoop is sleeved on the hard pipe, and the hoop cooperates with the second boss to fasten the hard pipe, the sealing ring and the assembly part. The pipeline connection structure of the present invention can limit the installation position of the hoop, is easy to disassemble and assemble, has good sealing performance, and improves the reliability of the connection between the hard pipe and the assembly part. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the pipeline connection structure of the present invention.

[0016] Figure 2 yes Figure 1 The cross-sectional structural schematic diagram of the pipeline connection structure shown.

[0017] Figure 3 It is a three-dimensional structural schematic diagram of the sealing ring of the present invention.

[0018] Figure 4 yes Figure 3 A side view structural schematic diagram of the sealing ring is shown.

[0019] Figure 5 yes Figure 3 The cross-sectional structural schematic diagram of the sealing ring is shown. DETAILED DESCRIPTION

[0020] In order to make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the pipeline connection structure of the present invention. Figure 2 yes Figure 1 The cross-sectional structure diagram of the pipeline connection structure is shown in FIG. Figure 1 and Figure 2 As shown, the pipeline connection structure 10 includes a sealing ring 11 , a hard pipe 12 , a fitting 13 and a hoop 14 .

[0022] Figure 3 It is a three-dimensional structural schematic diagram of the sealing ring of the present invention. Figure 4 yes Figure 3 A side view structural schematic diagram of the sealing ring is shown. Figure 5 yes Figure 3 The cross-sectional structure diagram of the sealing ring is shown in FIG. Figures 1 to 5 The sealing ring 11 is a tubular structure, and the sealing ring 11 is used to connect the hard tube 12 and the assembly 13. A first boss 112 and a second boss 113 are provided on the outer wall of the sealing ring 11. The number of the first bosses 112 is, for example, 3, and the number of the second bosses 113 is, for example, 2, but not limited thereto. The second boss 113 includes a column 113a and a stopper 113b. One end of the column 113a is connected to the sealing ring 11, and the other end of the column 113a is connected to the stopper 113b. The outer diameter of the column 113a is smaller than the outer diameter of the stopper 113b, and the stopper 113b is used to achieve the function of locking. An installation cavity 101 is provided in the sealing ring 11, and the installation cavity 101 penetrates the sealing ring 11 along the axis of the sealing ring 11. A plurality of sealing rings 114 are provided on the cavity wall of the installation cavity 101. Each sealing ring 114 is arranged around the axis of the installation cavity 101, and each sealing ring 114 is arranged at intervals from each other along the axis of the installation cavity 101, and an elastic deformation gap is formed between two adjacent sealing rings 114.

[0023] Further, the sealing ring 11 includes a first end 11a and a second end 11b opposite to each other. The first end 11a of the sealing ring 11 is provided with a blocking ring 115, which is connected to the cavity wall of the installation cavity 101, and the blocking ring 115 is arranged around the axis of the installation cavity 101. The second end 11b of the sealing ring 11 is provided with a limit block 116, which is arranged on the outer wall of the sealing ring 11, and the limit block 116 is arranged around the axis of the installation cavity 101. A limit groove 102 is provided on one side of the limit block 116, and the limit groove 102 is arranged around the axis of the installation cavity 101. In the present embodiment, the sealing ring 11 is made of an elastic material, such as rubber, plastic, etc., but is not limited thereto, that is, the sealing ring 11 can be elastically deformed when squeezed.

[0024] It is worth mentioning that the blocking ring 115 can be formed by bending the end of the first end 11a along the axial direction close to the sealing ring 11; the limit block 116 can be formed by bending the end of the second end 11b along the axial direction away from the sealing ring 11, and a limit groove 102 is formed between the limit block 116 and the outer wall of the sealing ring 11.

[0025] like Figure 1 and Figure 2 As shown, the hard tube 12 is, for example, an air tube for conveying air. The hard tube 12 is provided with a first positioning hole 103 and a second positioning hole 104. The first end 11a of the sealing ring 11 is arranged in the hard tube 12. The end of the hard tube 12 is arranged in the limiting groove 102 (the notch of the limiting groove 102 faces the hard tube 12). The first boss 112 is arranged in the first positioning hole 103. The second boss 113 passes through the second positioning hole 104. The first boss 112 can prevent the sealing ring 11 from rotating. The second boss 113 can position the hoop 14 to ensure the sealing of the assembly.

[0026] Further, the hard tube 12 includes an air inlet section 121 and a connecting section 122. The air inlet section 121 and the connecting section 122 are connected to each other, the inner diameter of the air inlet section 121 is smaller than the inner diameter of the connecting section 122, the sealing ring 11 is arranged in the connecting section 122, and the first end 11a of the sealing ring 11 is arranged on the shoulder where the air inlet section 121 and the connecting section 122 are connected. The first positioning hole 103 and the second positioning hole 104 are arranged on the connecting section 122 and penetrate the connecting section 122. In this embodiment, the hard tube 12 is made of nylon material, but it is not limited thereto.

[0027] like Figure 1 and Figure 2As shown, one end of the assembly part 13 is arranged in the sealing ring 11, the end of the assembly part 13 abuts against the blocking ring 115, the hoop 14 is sleeved on the hard tube 12, the hoop 14 and the second boss 113 cooperate to fasten the hard tube 12, the sealing ring 11 and the assembly part 13, and when the hoop 14 fastens the hard tube 12, the sealing ring 11 and the assembly part 13, each sealing ring 114 elastically abuts against the assembly part 13, so that a multi-layer sealing effect is formed between the sealing ring 11 and the assembly part 13, which can effectively ensure the sealing of the hard tube 12 and the assembly part 13.

[0028] Further, the assembly part 13 is an air filter or a turbocharger, and the assembly part 13 is provided with a connecting pipe 131 matched with the sealing ring 11, one end of the connecting pipe 131 is arranged in the installation cavity 101, and a stopper 132 is arranged on the outer wall of the connecting pipe 131, and the stopper 132 is arranged outside the installation cavity 101, and the stopper 132 is arranged along the circumference of the connecting pipe 131, and the second end 11b of the sealing ring 11 abuts against the stopper 132. In this embodiment, the connecting pipe 131 is made of steel, that is, the connecting pipe 131 is also a hard pipe.

[0029] like Figure 1 and Figure 2 As shown, the ring hoop 14 is provided with a locking groove 104, and the second boss 113 is arranged in the locking groove 104. The second boss 113 cooperates with the locking groove 104 to position the ring hoop 14, and the ring hoop 14 can be conveniently removed from the hard tube 12. When the second boss 113 cooperates with the locking groove 104, the column 113a of the second boss 113 is in the locking groove 104, and the limiting head 113b of the second boss 113 is located outside the locking groove 104, so as to realize the positioning of the ring hoop 14.

[0030] The outer wall of the sealing ring 11 of the pipe connection structure 10 of the present invention is provided with a first boss 112 and a second boss 113, a mounting cavity 101 is provided in the sealing ring 11, a first positioning hole 103 and a second positioning hole 104 are provided on the hard pipe 12, one end of the sealing ring 11 is arranged in the hard pipe 12, the first boss 112 is arranged in the first positioning hole 103, the second boss 113 passes through the second positioning hole 104, one end of the assembly part 13 is arranged in the sealing ring 11, the hoop 14 is sleeved on the hard pipe 12, and the hoop 14 cooperates with the second boss 113 to fasten the hard pipe 12, the sealing ring 11 and the assembly part 13. The pipe connection structure 10 of the present invention can limit the installation position of the hoop 14, is easy to disassemble and assemble, has good sealing performance, and improves the reliability of the connection between the hard pipe 12 and the assembly part 13.

[0031] Moreover, when the hoop 14 tightens the hard tube 12, the sealing ring 11 and the assembly 13, each sealing ring 114 elastically rests on the assembly 13, and each sealing ring 114 can make the connection between the hard tube 12 and the assembly 13 more reliable without flipping. There is an elastic deformation gap between the sealing rings 114, and the contact area with the connecting pipe 131 of the assembly 13 is increased, forming a multi-layer sealing effect with a good sealing effect.

[0032] In addition, the pipe connection structure 10 of the present invention can realize the assembly of hard pipes and hard pipes, reduce the structure of connecting hard pipes, soft pipes and hard pipes to each other during the design process, not only facilitate the arrangement of the connection structure, but also reduce the production cost. The pipe connection structure 10 of the present invention has a larger design space for the hard pipe 12 and the corresponding assembly part 13 according to the conditions of different vehicle models.

[0033] The present invention is not limited to the specific details in the above-mentioned embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention. The various specific technical features described in the above-mentioned specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further explain various possible combinations.

Claims

1. A pipeline connection structure, characterized in that: The invention comprises a sealing ring, a hard tube, an assembly part and a hoop, wherein a first boss and a second boss are provided on an outer wall of the sealing ring, a mounting cavity is provided in the sealing ring, a first positioning hole and a second positioning hole are provided on the hard tube, one end of the sealing ring is arranged in the hard tube, the first boss is arranged in the first positioning hole, the second boss passes through the second positioning hole, one end of the assembly part is arranged in the sealing ring, the hoop is sleeved on the hard tube, and the hoop cooperates with the second boss to fasten the hard tube, the sealing ring and the assembly part; the hard tube comprises an air intake section and a connecting section, the inner diameter of the air intake section is smaller than the inner diameter of the connecting section, a shoulder is formed between the air intake section and the connecting section, the sealing ring is arranged in the connecting section, and the first positioning hole and the second positioning hole are arranged on the connecting section; a stopper is provided on the assembly part, one end of the sealing ring abuts against the shoulder, and the other end of the sealing ring abuts against the stopper.

2. The pipeline connection structure according to claim 1, characterized in that: A plurality of sealing rings are arranged on the cavity wall of the installation cavity, each of the sealing rings is arranged around the axis of the installation cavity, and each of the sealing rings is arranged at intervals along the axis of the installation cavity. When the hoop tightens the hard tube, the sealing ring and the assembly part, each of the sealing rings elastically rests against the assembly part.

3. The pipeline connection structure according to claim 1, characterized in that: The sealing ring includes a first end and a second end opposite to each other. The first end is provided with a blocking ring connected to the cavity wall of the installation cavity. The blocking ring is arranged around the axis of the installation cavity, and the end of the assembly part abuts against the blocking ring.

4. The pipeline connection structure according to claim 3, characterized in that: The assembly part is provided with a connecting pipe matched with the sealing ring, one end of the connecting pipe is arranged in the installation cavity, the stopper is arranged on the outer wall of the connecting pipe, and the second end of the sealing ring abuts against the stopper.

5. The pipeline connection structure according to claim 3, characterized in that: A limit block is provided at the second end of the sealing ring. The limit block is arranged on the outer wall of the sealing ring. The limit block is arranged around the axis of the installation cavity. A limit groove is provided on the side of the limit block close to the hard tube, and the end of the hard tube is arranged in the limit groove.

6. The pipeline connection structure according to claim 1, characterized in that: The ring hoop is provided with a locking groove, the second boss is arranged in the locking groove, and the second boss cooperates with the locking groove to position the ring hoop.

7. The pipeline connection structure according to claim 6, characterized in that: The second boss includes a column and a limit head, one end of the column is connected to the sealing ring, and the other end of the column is connected to the limit head, the outer diameter of the column is smaller than the outer diameter of the limit head, the column is arranged in the positioning groove, and the limit head is arranged outside the positioning groove.

8. The pipeline connection structure according to claim 1, characterized in that: The hard pipe is an air pipe, and the assembly part is an air filter or a turbocharger.

Images