A pipe connection structure

Abstract

The utility model discloses a pipeline connecting structure, including first end portion fixed cylinder, second end portion fixed cylinder and middle part fixed cylinder, first end portion fixed cylinder sets up in one end of middle part fixed cylinder, and second end portion fixed cylinder sets up in the other end of middle part fixed cylinder, middle part fixed cylinder includes first pipe section, second pipe section and third pipe section who links up in proper order, first end portion fixed cylinder is installed in first pipe section through screw thread, and second end portion fixed cylinder is installed in third pipe section through screw thread, the elastic structure of helical shape is covered in second pipe section, the elastic structure is spring shape, and the section of elastic structure is rectangle, and the length of elastic structure is equal to the length of second pipe section, and the adjacent spiral turns of spring shape elastic structure are filled with rubber, the utility model discloses simple structure, convenient operation, and when using, through the process of screwing, make rubber deformation, and then make rubber complete sealing, will not damage pipeline, also can not make pipeline deformation.

Description

Technical Field

[0001] This utility model relates to a pipe connection structure and belongs to the technical field of pipe connection structure. Background Technology

[0002] There are many ways to connect pipes. The conventional method is to align the axes of the pipes to be connected and then use fittings such as flanges and threaded sleeves. However, this method is relatively complex and relies on rigid structures for compression and binding, which can easily cause pipe deformation and damage. Utility Model Content

[0003] The purpose of this utility model is to provide a pipe connection structure that is simple in structure and easy to operate. During use, the rubber is deformed by tightening, thereby sealing the rubber without damaging or deforming the pipe.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A pipe connection structure includes a first end fixing cylinder, a second end fixing cylinder, and a middle fixing cylinder. The first end fixing cylinder is disposed at one end of the middle fixing cylinder, and the second end fixing cylinder is disposed at the other end of the middle fixing cylinder. The middle fixing cylinder includes a first pipe segment, a second pipe segment, and a third pipe segment connected in sequence. The first end fixing cylinder is threaded onto the first pipe segment, and the second end fixing cylinder is threaded onto the third pipe segment. A spiral elastic structure is sleeved inside the second pipe segment. The elastic structure is spring-shaped, has a rectangular cross-section, and its length is equal to the length of the second pipe segment. Rubber is filled between adjacent spiral coils of the spring-shaped elastic structure.

[0006] In the aforementioned pipe connection structure, the distance between adjacent spiral coils of the spring-like elastic structure is 0.1 to 0.2 times the cross-sectional length of the elastic structure.

[0007] In the aforementioned pipe connection structure, the first end fixing cylinder and the second end fixing cylinder have the same structure; the first end fixing cylinder includes an outer section, a threaded section and an inner section connected in sequence, the length of the threaded section is equal to the length of the first pipe section, the threaded section is set in the first pipe section by threads, and the outer diameter of the inner section is equal to the inner diameter of the second pipe section.

[0008] In the aforementioned pipe connection structure, the inner diameters of the first end fixing cylinder, the second end fixing cylinder, and the spiral elastic structure are all equal, and the outer diameter of the elastic structure is equal to the inner diameter of the second pipe section.

[0009] Compared with the prior art, this utility model has a simple structure and is easy to operate. During use, the rubber is deformed by tightening, thereby completing the seal. It will not damage the pipe or cause the pipe to deform. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0011] Figure 2 This is an exploded view of one embodiment of the present invention;

[0012] Figure 3 This is a structural schematic diagram of the second pipe section.

[0013] Reference numerals: 1-First end fixing cylinder, 2-Middle fixing cylinder, 3-Second end fixing cylinder, 4-Outer section, 5-Threaded section, 6-Inner section, 7-First pipe section, 8-Second pipe section, 9-Third pipe section, 10-Elastic structure, 11-Rubber.

[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Detailed Implementation

[0015] Embodiment 1 of this utility model: A pipe connection structure includes a first end fixing cylinder 1, a second end fixing cylinder 3, and a middle fixing cylinder 2. The first end fixing cylinder 1 is disposed at one end of the middle fixing cylinder 2, and the second end fixing cylinder 3 is disposed at the other end of the middle fixing cylinder 2. The middle fixing cylinder 2 includes a first pipe section 7, a second pipe section 8, and a third pipe section 9 connected in sequence. The first end fixing cylinder 1 is threaded onto the first pipe section 7, and the second end fixing cylinder 3 is threaded onto the third pipe section 9. A spiral elastic structure 10 is sleeved inside the second pipe section 8. The elastic structure 10 is spring-shaped, has a rectangular cross-section, and its length is equal to the length of the second pipe section 8. Rubber 11 is filled between adjacent spiral coils of the spring-shaped elastic structure 10.

[0016] Example 2: A pipe connection structure includes a first end fixing cylinder 1, a second end fixing cylinder 3, and a middle fixing cylinder 2. The first end fixing cylinder 1 is disposed at one end of the middle fixing cylinder 2, and the second end fixing cylinder 3 is disposed at the other end of the middle fixing cylinder 2. The middle fixing cylinder 2 includes a first pipe section 7, a second pipe section 8, and a third pipe section 9 connected in sequence. The first end fixing cylinder 1 is threaded onto the first pipe section 7, and the second end fixing cylinder 3 is threaded onto the third pipe section 9. A spiral elastic structure 10 is sleeved inside the second pipe section 8. The elastic structure 10 is spring-shaped, has a rectangular cross-section, and its length is equal to the length of the second pipe section 8. Rubber 11 is filled between adjacent spiral coils of the spring-shaped elastic structure 10.

[0017] The distance between adjacent spiral coils of the spring-like elastic structure 10 is 0.1 to 0.2 times the cross-sectional length of the elastic structure 10. The first end fixing cylinder 1 and the second end fixing cylinder 3 have the same structure; the first end fixing cylinder 1 includes an outer section 4, a threaded section 5, and an inner section 6 connected in sequence. The length of the threaded section 5 is equal to the length of the first pipe section 7, and the threaded section 5 is threaded within the first pipe section 7. The outer diameter of the inner section 6 is equal to the inner diameter of the second pipe section 8. The inner diameters of the first end fixing cylinder 1, the second end fixing cylinder 3, and the spiral elastic structure 10 are all equal, and the outer diameter of the elastic structure 10 is equal to the inner diameter of the second pipe section 8.

[0018] The working principle of one embodiment of this utility model is as follows: In use, the first end fixing cylinder 1 is first sleeved on one of the pipes to be connected, and the second end fixing cylinder 3 is sleeved on the other pipe to be connected; then, the pipes to be connected are respectively inserted into the two ends of the middle fixing cylinder 2, so that the ends of the two pipes are located in the middle of the second pipe section 8.

[0019] Then, the first end fixing cylinder 1 and the second end fixing cylinder 3 are screwed onto the middle fixing cylinder 2. At this time, the inner section 6 abuts against the elastic structure 10 and applies pressure to the elastic structure 10. The elastic structure 10 deforms under the force, thus squeezing the rubber 11. The rubber 11 deforms under the action of the squeezing force, making the rubber 11 and the pipe to be connected fit better, thereby completing the seal. Since the rubber 11 and the pipe to be connected fit better, the friction force that can be withstood between them is also greater.

[0020] The processing method of the elastic structure 10 can be the same as that of the spring, except that the iron wire is replaced with a thin iron sheet. After processing, the elastic structure 10 is fitted over a cylinder, and then another cylinder is fitted over the elastic structure 10 so that the elastic structure 10 is located between the two cylinders. Then, molten rubber is poured into it to complete the elastic structure 10 described in this utility model.

Claims

1. A pipe connection structure characterized by comprising: It includes a first end fixing cylinder (1), a second end fixing cylinder (3) and a middle fixing cylinder (2). The first end fixing cylinder (1) is located at one end of the middle fixing cylinder (2), and the second end fixing cylinder (3) is located at the other end of the middle fixing cylinder (2). The middle fixed cylinder (2) includes a first pipe section (7), a second pipe section (8) and a third pipe section (9) connected in sequence. The first end fixed cylinder (1) is installed in the first pipe section (7) by threads, and the second end fixed cylinder (3) is installed in the third pipe section (9) by threads. The second pipe section (8) is fitted with a spiral elastic structure (10), which is spring-shaped and has a rectangular cross-section. The length of the elastic structure (10) is equal to the length of the second pipe section (8). Rubber (11) is filled between adjacent spiral coils of the spring-shaped elastic structure (10).

2. A pipe coupling structure according to claim 1, wherein The distance between adjacent spiral coils of the spring-like elastic structure (10) is 0.1 to 0.2 times the cross-sectional length of the elastic structure (10).

3. A pipe coupling according to claim 2, wherein The first end fixing tube (1) and the second end fixing tube (3) have the same structure; The first end fixing cylinder (1) includes an outer section (4), a threaded section (5) and an inner section (6) connected in sequence. The length of the threaded section (5) is equal to the length of the first pipe section (7). The threaded section (5) is set inside the first pipe section (7) by a thread. The outer diameter of the inner section (6) is equal to the inner diameter of the second pipe section (8).

4. A pipe coupling according to claim 3, wherein The inner diameters of the first end fixing cylinder (1), the second end fixing cylinder (3), and the spiral elastic structure (10) are all equal, and the outer diameter of the elastic structure (10) is equal to the inner diameter of the second pipe section (8).

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