CN206377366U - A kind of oil connection - Google Patents

Abstract

The utility model relates to the field of hydraulic engineering, in particular to an oil pipe joint. It includes a joint body and a connecting pipe, the connecting pipe is provided with a compression cap, the compression cap is provided with external threads, and the joint body is correspondingly provided with internal threads, and the end of the connection pipe is turned outward to form a compression cap. Tightening part, the outer diameter of the pressing part is smaller than the diameter of the internal thread on the joint body, and a sealing gasket is provided between the end surface of the pressing part and the joint body. The utility model pushes the connecting pipe to move to the joint body by tightening the compression cap, so that the compression part compresses the gasket, so as to realize the sealing of the joint of the oil pipe. The pad deforms it and plays a sealing effect, so it can reduce the processing accuracy requirements of related parts, simplify the manufacturing process, effectively reduce the manufacturing cost of the product, and also reduce the maintenance cost of the product later, and prolong the service life of the oil pipe joint.

Description

A kind of oil pipe joint

technical field

The utility model relates to the field of hydraulic engineering, in particular to an oil pipe joint.

Background technique

When installing or connecting the oil circuit, two oil pipes are often connected. How to quickly and firmly connect the two oil pipes and how to prevent leakage are all problems. In the prior art, oil pipes are connected through oil pipe joints. Chinese invention patent CN106247045A discloses a fuel pipe joint, which includes a joint body, a connecting pipe and a nut. One end of the connecting pipe is inserted in the groove, the nut is set on the connecting pipe and threaded with the connecting sleeve body, and the end face and/or conical surface of the connecting pipe inserted in the groove is provided with a seal The sealing ring realizes the sealing between the joint body and the connecting pipe through the sealing ring.

During the use of this kind of oil pipe joint, it needs to be positioned and sealed by the conical surface of the joint body and the connecting pipe. If the processing of the matching conical surface of the two is unqualified, the sealing ring will be damaged and the joint body and the connecting pipe will be damaged. Oil leakage often occurs at the connection of the joint, so this kind of pipe joint has high requirements on the machining accuracy of the matching taper surface on the joint body and the connecting pipe, and the overall manufacturing cost is relatively high.

Utility model content

The purpose of the utility model is to provide an oil pipe joint with a low machining precision requirement and a simple manufacturing process, which can effectively reduce the Product manufacturing costs.

In order to achieve the above object, the technical solution adopted by the utility model is:

An oil pipe joint, comprising a joint body and a connecting pipe, the connecting pipe is provided with a compression cap, the compression cap is provided with an external thread, and the joint body is correspondingly provided with an internal thread, and the end of the connection pipe faces toward the The outer flange forms a pressing part, the outer diameter of the pressing part is smaller than the diameter of the internal thread on the joint body, and a sealing gasket is provided between the end surface of the pressing part and the joint body.

Push the connecting pipe to move to the joint body by tightening the compression cap, so that the compression part is pressed and a gasket is provided between the end face of the compression part and the joint body, so as to realize the sealing of the joint of the oil pipe and prevent leakage. The joint adopts a flat sealing method, and the gasket can be deformed by pressing the gasket to achieve a sealing effect, so that the processing accuracy requirements of related parts can be reduced, the manufacturing process can be simplified, the manufacturing cost of the product can be effectively reduced, and the later maintenance of the product can also be reduced cost and prolong the service life of the oil pipe joint.

As a preferred solution of the present utility model, an anaerobic sealant is coated between the external thread and the internal thread. By applying anaerobic sealant between the thread pairs, the connection of the oil pipe joint can be further sealed to prevent leakage after the joint is installed.

As a preferred solution of the present utility model, the material of the gasket is copper. Because the copper material is soft, it will deform after being squeezed by force, which can achieve a better sealing effect. At the same time, the copper pad can withstand high temperature and pressure, and will not cause sealing failure due to high temperature and high pressure.

As a preferred solution of the present utility model, the clamping part for wrench tightening is provided on the pressing cap, and the clamping part is an outer hexagonal prism. With such a design, it is convenient to screw the compression cap into the joint body with a wrench, making the installation of the joint more convenient and labor-saving.

In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

1. Push the connecting pipe to move to the joint body by tightening the compression cap, so that the compression part is pressed and there is a gasket between the end face of the compression part and the joint body, so as to realize the sealing of the connection of the oil pipe and prevent leakage. The oil pipe joint adopts a flat sealing method. By pressing the gasket to deform it, it can achieve a sealing effect, thus reducing the processing accuracy requirements of related parts and simplifying the manufacturing process. It can effectively reduce product manufacturing costs and reduce product cost. Lower maintenance costs and prolong the service life of oil pipe joints;

2. By using the copper gasket as the gasket, since the copper material is soft, it will deform after being squeezed by force, which can achieve a better sealing effect. At the same time, the copper gasket can withstand higher temperature and pressure, and will not appear In case of seal failure due to high temperature and pressure.

Description of drawings

Fig. 1 is a sectional view of the oil pipe joint of the utility model.

Marks in the figure: 1-joint body, 2-connecting pipe, 21-compression part, 3-compression cap, 31-clamping part, 4-sealing pad.

detailed description

Below in conjunction with accompanying drawing, the utility model is described in detail.

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Example

The utility model provides an oil pipe joint;

As shown in Figure 1, the oil pipe joint in this embodiment includes a joint body 1 and a connecting pipe 2, the connecting pipe 2 is covered with a compression cap 3, and the compression cap 3 is provided with external threads, and the joint body 1 is correspondingly provided with an internal thread, and the end of the connecting pipe 2 is turned outward to form a pressing part 21. The outer diameter of the pressing part 21 is smaller than the diameter of the internal thread on the joint body 1. The pressing part 21 A gasket 4 is provided between the end face and the joint body 1 .

Push the connecting pipe to move to the joint body by tightening the compression cap, so that the compression part is pressed and a gasket is provided between the end face of the compression part and the joint body, so as to realize the sealing of the joint of the oil pipe and prevent leakage. The joint adopts a flat sealing method, and the gasket can be deformed by pressing the gasket to achieve a sealing effect, so that the processing accuracy requirements of related parts can be reduced, the manufacturing process can be simplified, the manufacturing cost of the product can be effectively reduced, and the later maintenance of the product can also be reduced cost and prolong the service life of the oil pipe joint.

In this embodiment, an anaerobic sealant is coated between the external thread and the internal thread. By applying anaerobic sealant between the thread pairs, the connection of the oil pipe joint can be further sealed to prevent leakage after the joint is installed.

In this embodiment, the sealing gasket 4 is made of red copper. Because the copper material is soft, it will deform after being squeezed by force, which can achieve a better sealing effect. At the same time, the copper pad can withstand high temperature and pressure, and will not cause sealing failure due to high temperature and high pressure.

In this embodiment, the compression cap 3 is provided with a clamping portion 31 for wrench tightening, and the clamping portion 31 is an outer hexagonal prism. With such a design, it is convenient to screw the compression cap into the joint body with a wrench, making the installation of the joint more convenient and labor-saving.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the principles of the present utility model should be included in the utility model. within the scope of protection.

Claims (4)

1. An oil pipe joint, comprising a joint body and a connecting pipe, characterized in that a compression cap is provided on the outer sleeve of the connection pipe, an external thread is provided on the compression cap, and an internal thread is correspondingly provided on the joint body, so The end of the connecting pipe is flanged outward to form a pressing part, the outer diameter of the pressing part is smaller than the diameter of the internal thread on the joint body, and a sealing gasket is provided between the end surface of the pressing part and the joint body. 2. The oil pipe joint according to claim 1, characterized in that an anaerobic sealant is coated between the external thread and the internal thread. 3. The oil pipe joint according to claim 2, wherein the material of the sealing gasket is red copper. 4 . The oil pipe joint according to claim 3 , wherein a clamping portion for wrench tightening is provided on the compression cap, and the clamping portion is an outer hexagonal prism.