CN203585668U - Composite pipeline connector - Google Patents

Abstract

The utility model belongs to the structural design of a diesel engine, and relates to a composite pipeline connector. The composite pipeline connector comprises a pipeline body (4), a connector body (1), a tee joint (3) and sealing rings (2). A center through hole of the connector body is a preheat water return channel, the connector body is in threaded connection with a cooling water pipe of a fresh water pump and the pipeline body (4), the pipeline body is connected with a check valve in a preheater pipeline, a small hole is formed in the pipeline body (4) so as to lead cooling water to a sensor pipeline, the tee joint (3) is arranged on the connector body (1) and the pipeline body (4) in a sleeved mode, a middle channel of the tee joint (3) is connected with the sensor pipeline, and the sealing rings (2) are located between the connector body (1) and the tee joint (3) and between the pipeline body (4) and the tee joint (3). The composite pipeline connector can meet the requirements for cooling water preheating and fresh water pressure detection of the diesel engine at the same time, and the connector body (1) and the pipeline body (4) are in threaded connection and are convenient to install and disassemble.

Description

A Composite Pipe Connector

technical field

The utility model belongs to the structural design of a diesel engine, in particular to a compound pipeline connector.

Background technique

When the diesel engine is working in a severe cold area, in order to ensure the smooth start of the diesel engine, it is necessary to install a set of cooling water preheater to preheat the cooling water in the engine before starting the diesel engine. Some diesel engines are limited by the working space, the return water pipe of the preheater can only be installed on the cooling water pipe from the fresh water pump to the oil cooler. If you want to connect the return water line of the preheater, the sensor line must be removed, and the fresh water pressure when the diesel engine is running cannot be detected at this time.

Utility model content

In order to solve the above technical problems, the utility model proposes a composite pipeline connector, which not only ensures the installation of the sensor pipeline for diesel engine fresh water pressure detection, but also satisfies the normal operation of the preheater.

The utility model adopts the following technical solutions to complete its inventive task:

A composite pipe connector, the connector includes a pipe body, a connecting body, a tee body and a sealing ring; the outside of the connecting body with a central through hole is a stepped cylindrical structure, and the central through hole of the connecting body The hole is a preheating return water channel; the outer wall of the left end of the connecting body is a small diameter section, which is threaded with the cooling water pipe of the fresh water pump through the external thread of the small diameter section step at the left end of the connecting body; the center of the right end of the connecting body The through hole has a section of internal thread, which is threadedly connected with the pipe body; the outside of the pipe body with the central through hole is a stepped cylindrical structure, and the central through hole of the pipe body is a preheating return water channel; the external thread at the left end of the pipe body is connected with the The internal thread of the inner hole at the right end of the connecting body is connected, and the external thread of the pipe wall at the right end of the pipe body is threadedly connected with the stop valve in the return water pipe of the preheater; there is a small hole on the pipe body for passing the cooling water through the three The whole body is led to the sensor pipeline; the three-way body is installed on the step end surface of the connecting body and the outer wall of the pipeline, the main channel of the three-way body is a light hole, and the middle channel of the three-way body is opened on the pipeline body Corresponding to the small hole, the middle channel of the tee body is designed with an internal thread for connecting the sensor pipeline for detecting fresh water pressure; there are two sealing rings, which are respectively located on the stepped end surface of the connecting body and the outer wall of the pipeline, and It is located between the connecting body and the tee body, the pipe body and the tee body, and plays a sealing role on the pipe.

The outer wall of one section of the connecting body is regular hexahedral, which facilitates the assembly and disassembly of the connecting body; the outer wall of one section of the pipe body is regular hexahedral, which is convenient for the assembly and disassembly of the pipe body.

Assembly process before use: first install the connecting body on the cooling water pipe of the fresh water pump, then put the sealing ring , tee body, and sealing ring on the pipe body in sequence, the left end of the pipe body is threaded with the connecting body, and the connecting body and the pipe body The stepped end faces the sealing ring and the tee body to be positioned, and the thread is tightened to seal; during the thread tightening process, the tee body can be rotated arbitrarily 360° according to the actual installation requirements, and the middle channel hole of the tee body is adjusted to a suitable direction. Positioning for the installation of the sensor pipeline. After the installation is in place, the small hole on the pipeline body is in a closed space formed by the four parts of the connecting body, the sealing ring, the tee body and the pipeline body; the external thread at the right end of the pipeline body and the preheater tube The shut-off valve in the road is connected.

The features of the utility model are: 1. It can meet the requirements of cooling water preheating and fresh water pressure detection for the diesel engine at the same time; 2. The connection body and the pipeline body are connected by threads, which is convenient for installation and disassembly; 3. The three-way body is set on the connection body and On the outer circle of the step of the pipe body, it does not rotate together with the connecting body and the pipe body during installation, and the installation space is small; 4. During installation, the tee body can be rotated 360° to change the direction of the middle thread end according to the actual work requirements.

Description of drawings

Fig. 1 is the structural representation of the utility model.

FIG. 2 is a cross-sectional view along line A-A of FIG. 1 .

Fig. 3 is a B-B sectional view of Fig. 1 .

In the figure, 1, connecting body, 2, sealing ring, 3, tee body, 4, pipe body.

Detailed ways

The utility model is described in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1, a composite pipe connector, the connector includes a connecting body 1, a tee body 3, a sealing ring 2 and a pipe body 4; the outside of the connecting body 1 with a central through hole is a stepped cylinder The central through hole of the connecting body 1 is a preheating return water channel; the outer wall at the left end of the connecting body 1 is a small diameter section, through the external thread of the small diameter section at the left end of the connecting body, and the cooling water pipe of the fresh water pump Threaded connection; the right end central through hole of the connecting body 1 has a section of internal thread, which is threadedly connected with the pipeline body 4; the outside of the pipeline body 4 with the central through hole is a stepped cylindrical structure, and the central through hole of the pipeline body is Preheating return channel; the external thread at the left end of the pipe body is connected with the internal thread at the inner hole at the right end of the connecting body; There is a small hole on it, which is used to lead the cooling water to the sensor pipeline through the three-way body 3; the three-way body 3 is installed on the step end surface of the outer wall of the connecting body 1 and the pipeline body 4, and the main body of the three-way body The channel is a light hole, the middle channel of the three-way body corresponds to the small hole opened on the pipe body, and the middle channel of the three-way body is designed with an internal thread for connecting the sensor pipeline for detecting fresh water pressure; the sealing ring 2. There are two in total, which are respectively located on the stepped end faces of the connecting body 1 and the outer wall of the pipe body 4, and between the connecting body 1 and the tee body 3, and between the pipe body 4 and the tee body 3, and seal the pipes.

Referring to Fig. 2 and Fig. 3, the outer wall of one section of the connecting body is regular hexahedral, which is convenient for the assembly and disassembly of the connecting body 1;

Assembly process before use: first install the connecting body 1 on the cooling water pipe of the fresh water pump, then put the sealing ring 2, the tee body 3, and the sealing ring 2 on the pipe body 4 in sequence, and screw the left end thread of the pipe body into the thread of the connecting body. The step end on the connecting body 1 and the pipe body 4 is positioned against the sealing ring 2 and the tee body 3, and the thread is tightened and then compressed and sealed; during the thread tightening process, the tee body 3 is arbitrarily rotated 360° according to the actual installation requirements, and the The middle channel hole of the tee body is adjusted to a suitable direction and then positioned so that the sensor pipeline for detecting fresh water pressure can be installed. In the closed space formed by parts; the external thread at the right end of the pipe body 4 is connected with the shut-off valve in the preheater pipeline.

Before starting the diesel engine, preheat the cooling water inside the diesel engine. The shut-off valve in the preheating circuit is in an open state. The cooling water enters the diesel engine through the central hole of the connecting body 1 and the pipe body 4 to preheat the diesel engine. The water flow direction of the preheating circuit is shown in Figure 1 Shown; after the diesel engine is preheated, close the stop valve in the preheating circuit, the internal cooling water of the diesel engine enters the composite pipe connector, and the water flow direction is opposite to that shown in Figure 1, passing through the central through hole of the connecting body and the small hole on the pipe body Enter the closed space formed by connecting body 1, sealing ring 2, tee body 3, and pipe body 4, and then flow into the sensor pipeline for measuring fresh water pressure to measure the fresh water pressure when the diesel engine is running normally.

Claims (2)

1. a multiple tube connector, is characterized in that: described connector includes pipe body (4), connecting body (1), three-way body (3) and seal ring (2); The core structure that the outside with the connecting body (1) of central through bore is stepped shape, the central through bore of described connecting body, is preheating backwater channel; Outer wall at connecting body left end is reduced diameter section, by the outside thread of connecting body left end reduced diameter section, is threaded with the water-cooling tube that goes out fresh water pump; The right-hand member central through bore of described connecting body (1) has one section of internal thread, with pipe body (4) scyewed joint; The core structure that the outside with the pipe body (4) of central through bore is stepped shape, the central through bore of pipe body (4) is preheating backwater channel; The outside thread of pipe body left end is connected with the internal thread of connecting body right-hand member endoporus, and the outside thread of pipe body right-hand member tube wall is threaded with the stop valve in preheater pipeline; On pipe body (4), have an aperture, for cooling water is passed through threeway body causes sensor pipeline; Described three-way body (3) is arranged on the step surface of described connecting body (1), pipe body (4) outer wall, described three-way body main passage is unthreaded hole, the center-aisle of described three-way body (3) is corresponding with the aperture setting on pipe body, on the center-aisle of three-way body (3), be designed with internal thread, for connecting sensor pipeline; Described seal ring (2) has two, lays respectively on the step surface of connecting body (1), pipe body (4) outer wall, and is positioned between connecting body (1) and three-way body (3), pipe body (4) and three-way body (3), and pipeline is sealed.

2. according to a kind of multiple tube connector claimed in claim 1, it is characterized in that: the described connecting body wherein outer wall of a section is positive six shapes; The described pipe body wherein outer wall of a section is positive six shapes.

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