Elbow joint

Abstract

The utility model discloses an elbow joint which comprises a first straight pipe and a second straight pipe, threads are arranged on the inner wall of the first straight pipe and the inner wall of the second straight pipe, the first straight pipe and the second straight pipe are connected with two first pipelines needing to be in butt joint respectively, and the elbow joint further comprises a spiral corrugated elbow. The two ends of the spiral corrugated bent pipe are fixedly connected with a first straight pipe and a second straight pipe respectively, reinforcing ribs are arranged on the first straight pipe and the second straight pipe, a first partial pressure pipe is arranged on one side of the first straight pipe, the first partial pressure pipe comprises a corrugated pipe section, and the first partial pressure pipe is connected with a second pipeline needing to be in butt joint or one first pipeline. The threaded corrugated bent pipe is arranged between the first straight pipe and the second straight pipe, so that the threaded corrugated bent pipe can be deformed or bent to a certain extent according to the actual direction condition of the first pipelines when the threaded corrugated bent pipe is in butt joint with the two first pipelines, the butt joint is more flexible, the overall manufacturing precision can be reduced, and the manufacturing cost can be reduced; and the condition that the device cannot be butted with the first pipeline is reduced or avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pipeline technical field, especially a kind of elbow joint. BACKGROUND

[0002] When connecting two pipes in different directions, elbow joint is usually needed for butt joint connection.For elbow joint, in the prior art, by searching, the utility model patent with Chinese patent publication number CN202972333U discloses a butt joint elbow of injection molding pipe, as shown in the figure, which mainly includes left straight pipe a, right straight pipe b and intermediate elbow c, the intermediate elbow c is connected and arranged between left straight pipe a and right straight pipe b, in use, left straight pipe and right straight pipe are respectively connected and arranged on two pipes. Figure 1

[0003] In the prior art, one kind of elbow joint similar to the above technical solution, in actual implementation process, it is found that there are some aspects to be improved: the machining precision requirement of elbow joint is higher, when the error of elbow joint is larger, or the direction of two connecting pipes on site is slightly deviated, then the phenomenon that elbow joint is not butt jointed with the pipe to be butt jointed is easily appeared, which affects installation. CONTENT OF UTILITY MODEL

[0004] In view of the deficiencies and shortcomings in the prior art, the purpose of the utility model is to provide an elbow joint, which solves the problem that the machining precision requirement of the elbow joint in the prior art is high, when the error of the elbow joint is large, or the direction of two connecting pipes on site is slightly deviated, then the phenomenon that the elbow joint is not butt jointed with the pipe to be butt jointed is easily appeared, which affects installation.

[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme: an elbow joint, comprising first straight pipe and second straight pipe, threads are arranged on the inner walls of the first straight pipe and the second straight pipe, the first straight pipe and the second straight pipe are respectively connected with two first pipes to be butt jointed, further comprising spiral corrugated elbow, the spiral corrugated elbow is fixedly connected with the first straight pipe and the second straight pipe at two ends, the first straight pipe and the second straight pipe are both provided with reinforcing ribs, one side of the first straight pipe is provided with first pressure dividing pipe, the first pressure dividing pipe comprises corrugated pipe section, the first pressure dividing pipe is connected with second pipe to be butt jointed or one of the first pipes.

[0006] As a further improvement of the utility model, a second pressure dividing pipe is arranged on the spiral corrugated elbow close to one end of the second straight pipe, and the second pressure dividing pipe is connected with third pipe to be butt jointed or one of the first pipes.

[0007] As a further improvement of the utility model, a sealing gasket is arranged on the inner wall of the first straight pipe and the second straight pipe between the first pipe.​

[0008] As a further improvement of the utility model, anticorrosive layers are arranged on the first straight pipe, the second straight pipe and the spiral corrugated elbow pipe.

[0009] Compared with the prior art, the utility model has the following advantages:

[0010] 1. By arranging the spiral corrugated elbow pipe between the first straight pipe and the second straight pipe, when the two first pipes are connected, the spiral corrugated elbow pipe can be deformed or bent according to the actual direction of the first pipe, so that the connection is more flexible, thus the overall manufacturing precision can be reduced, the manufacturing cost can be reduced, and the situation that the device cannot be connected with the first pipe can be reduced or avoided.

[0011] In addition, by arranging the reinforcing ribs on the first straight pipe and the second straight pipe, the strength and firmness of the first straight pipe and the second straight pipe can be improved.

[0012] By arranging the first pressure distribution pipe on the first straight pipe, other pipes (second pipes) can be connected through the first pressure distribution pipe, the flexibility of pipe connection is increased, one of the first pipes can also be connected through the first pressure distribution pipe, the pressure impact of liquid flow on the spiral corrugated elbow pipe is reduced, the stability of the spiral corrugated elbow pipe is improved, and the relative movement between liquids is improved, the liquid mixing effect is increased, and the use range of multiple scenes is expanded.

[0013] 2. By arranging the second pressure distribution pipe on the spiral corrugated pipe, other pipes (third pipes) can be connected through the first pressure distribution pipe, the flexibility of pipe connection is increased, one of the first pipes can also be connected through the first pressure distribution pipe, the pressure impact of liquid flow on the spiral corrugated elbow pipe is reduced, the stability of the spiral corrugated elbow pipe is improved, the relative movement between liquids is improved, the liquid mixing effect is increased, and the use range of multiple scenes is expanded.

[0014] 3. By arranging the sealing gasket on the first straight pipe and the inner wall of the first straight pipe, the sealing property can be improved, and liquid leakage can be avoided.

[0015] 4. By arranging the anticorrosive layers on the first straight pipe, the second straight pipe and the spiral corrugated elbow pipe, the anticorrosive effect of the device is improved, and the device is suitable for liquids with high corrosion. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be further described below in combination with the drawings:

[0017] Figure 1 It is a structural schematic view of the prior art;

[0018] Figure 2 It is a structural schematic view of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the first straight pipe at the sealing gasket.

[0020] In the diagram: 1. First straight pipe; 2. Second straight pipe; 3. Spiral corrugated bend; 4. Reinforcing rib; 5. First pressure dividing pipe; 6. Corrugated pipe section; 7. Second pressure dividing pipe; 8. Sealing gasket; 9. First pipeline. Detailed Implementation

[0021] The following is in conjunction with the appendix Figures 2-3 The present invention will be described in further detail below. For clarity, only the structures relevant to the inventive features of the present invention are shown in the figures.

[0022] For ease of description, the coordinate system is defined as follows: Figure 2 As shown, the left and right directions are horizontal, the front and back directions are vertical, and the up and down directions are vertical.

[0023] This utility model discloses a pipe bend connector. (Refer to...) Figure 2 and Figure 3 A pipe bend connector includes a first straight pipe 1 and a second straight pipe 2, both with threads on their inner walls. The first straight pipe 1 and the second straight pipe 2 are respectively connected to two first pipes 9 that need to be connected. It also includes a spiral corrugated bend 3, with both ends fixedly connected to the first straight pipe 1 and the second straight pipe 2. The first straight pipe 1, the second straight pipe 2, and the spiral corrugated bend 3 are provided with an anti-corrosion layer, improving the anti-corrosion effect of the device and making it suitable for highly corrosive liquids. Both the first straight pipe 1 and the second straight pipe 2 are provided with reinforcing ribs 4. A first pressure-dividing pipe 5 is provided on one side of the first straight pipe 1, and the first pressure-dividing pipe 5 includes a corrugated pipe section 6. The first pressure-dividing pipe 5 is connected to the second pipe or one of the first pipes 9 that need to be connected. By installing a first pressure-dividing pipe 5 on the first straight pipe 1, other pipes (second pipes) can be connected through the first pressure-dividing pipe 5, increasing the flexibility of pipe connection. Alternatively, the first pressure-dividing pipe 5 can be connected to one of the first pipes 9. This reduces the pressure impact on the spiral corrugated bend 3 during liquid flow, improving its stability. It also enhances the relative motion between liquids, improving the mixing effect for liquids requiring mixing. It should be noted that when the first pressure-dividing pipe 5 is connected to the first pipe 9, the first pipe 9 has a branch pipe that connects to the first pressure-dividing pipe 5.

[0024] In addition, the spiral corrugated elbow 3 is provided with a second pressure dividing pipe 7 close to one end of the second straight pipe 2, and the second pressure dividing pipe 7 is connected with the third pipe or one of the first pipes 9; therefore, the first pressure dividing pipe 5 can be connected with other pipes (the third pipe), increasing the flexibility of pipe connection, and the first pressure dividing pipe 5 can also be connected with one of the first pipes 9, which can reduce the pressure impact on the spiral corrugated elbow 3 when the liquid flows, improve the stability of the spiral corrugated elbow 3, and improve the relative movement of the liquids, increase the liquid mixing effect for liquids that need to be mixed, and expand the use range in multiple scenarios. It should be noted that when the second pressure dividing pipe 7 is connected with the first pipe 9, the first pipe 9 is provided with a branch pipe connected with the second pressure dividing pipe 7.

[0025] The first straight pipe 1 and the second straight pipe 2 are provided with a sealing gasket 8 on the inner side wall between the first pipe 9; therefore, the sealing property can be improved to avoid liquid leakage.

[0026] The utility model discloses a threaded corrugated elbow is arranged between the first straight pipe 1 and the second straight pipe 2, therefore, when the two first pipes 9 are connected, the threaded corrugated elbow can be deformed or bent according to the actual direction of the first pipe 9, and the connection is more flexible, therefore, the overall manufacturing precision can be reduced, the manufacturing cost is reduced, and the situation that the device cannot be connected with the first pipe 9 is reduced or avoided.

[0027] In addition, the first straight pipe 1 and the second straight pipe 2 are provided with a reinforcing rib 4, therefore, the strength and firmness of the first straight pipe 1 and the second straight pipe 2 can be improved.

[0028] In the description of the utility model, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, and it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. It should be understood that the specific embodiments described herein are only used to understand the utility model, and are not used to limit the utility model, and all other embodiments obtained by ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

Claims

1. A pipe bend joint comprising a first straight pipe and a second straight pipe, the inner walls of the first straight pipe and the second straight pipe are provided with threads, the first straight pipe and the second straight pipe are connected with two first pipes to be connected respectively, characterized in that: Also include spiral corrugated elbow, both ends of the spiral corrugated elbow are fixedly connected with the first straight pipe and the second straight pipe, the first straight pipe and the second straight pipe are each provided with a reinforcing rib, one side of the first straight pipe is provided with a first pressure distribution pipe, the first pressure distribution pipe comprises a corrugated pipe section, and the first pressure distribution pipe is connected with a second pipeline to be butt-jointed or one of the first pipelines.

2. A bend sub according to claim 1, characterised in that: A second pressure distribution pipe is arranged on the spiral corrugated elbow and close to one end of the second straight pipe, and the second pressure distribution pipe is connected with a third pipeline to be butt-jointed or one of the first pipelines.

3. A bend sub according to claim 1, characterized in that: A sealing gasket is arranged on the inner side walls of the first straight pipe and the second straight pipe and between the first pipeline.

4. A bend sub according to claim 1, characterized in that: The first straight pipe, the second straight pipe and the spiral corrugated elbow are provided with an anticorrosive layer.

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