CN209990565U

CN209990565U - Self-stretching returns oil pipe

Info

Publication number: CN209990565U
Application number: CN201920357013.2U
Authority: CN
Inventors: 武志旺
Original assignee: Wuxi Weixin Precision Machinery Co Ltd
Current assignee: Wuxi Weixin Precision Machinery Co Ltd
Priority date: 2019-03-20
Filing date: 2019-03-20
Publication date: 2020-01-24
Anticipated expiration: 2029-03-20

Abstract

The utility model discloses a self-stretching oil return pipe, which comprises an oil return branch pipe, a three-way oil return joint, an end part oil return joint, a stretching mechanism, an oil return main pipe and an oil return main joint, wherein two ends of the oil return branch pipe are respectively connected with the three-way oil return joint, one end of the oil return branch pipe at the end part, which is far away from the three-way oil return joint, is connected with the end part oil return joint, the outer side surface of the oil return branch pipe is provided with the stretching mechanism, one end of the three-way oil return joint, which is far away from the end part oil return joint, is connected with one end of the oil return main pipe, and the other end of the oil return main pipe is connected with the oil return main joint, the utility model has reasonable structure, and the oil return branch pipe can not be in a suspended state, the service life of the oil return pipe is guaranteed.

Description

Self-stretching returns oil pipe

Technical Field

The utility model relates to an oil return pipe technical field specifically is a self-stretching returns oil pipe.

Background

Most of the existing automobiles are provided with an oil return pipe, oil is supplied to an engine by a fuel pump, certain pressure is formed, except for the condition that the oil is normally supplied to a fuel nozzle for oil injection, the rest fuel oil is returned to an oil tank through an oil return pipeline, and the rest gasoline steam collected by a carbon tank is returned to the oil return pipe of the oil tank through the oil return pipe, so that the rest oil can be returned to the oil tank, the pressure for discharging the gasoline can be achieved, and the oil consumption can be reduced.

At present, if the oil return pipe is installed on an automobile, the oil return branch pipe is in a suspended state all the time if the length of the oil return branch pipe is a little, the toughness of the oil return pipe is influenced, and the service life is influenced, so that an improved technology is urgently needed to solve the problem existing in the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a from tensile time oil pipe to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a from tensile oil return pipe, includes that oil return branch pipe, tee bend oil return joint, tip oil return joint, tension mechanism, oil return are responsible for and the oil return total joint, the oil return branch pipe both ends link to each other with tee bend oil return joint respectively, the tip the oil return branch pipe is kept away from and is connected tee bend oil return joint one end and link to each other with tip oil return joint, tee bend oil return joint has a plurality of, oil return branch pipe outside surface is provided with tension mechanism, one of keeping away from tip oil return joint the tee bend oil return joint is kept away from and is connected oil return branch pipe one end and be responsible for one end with the oil return and link to each.

Preferably, the oil return branch pipe is a metal hose, the oil return branch pipe both ends are provided with the metal head respectively, the cross-section of metal head is just changeable shape, the inside internal thread that is provided with of metal head.

Preferably, the tee joint oil return connector is internally provided with a tee cavity, two ends of the tee joint oil return connector are respectively provided with a connection port A, the surface of the connection port A is provided with threads, and the upper surface of the tee joint oil return connector is provided with an oil return end connector A.

Preferably, a connection port B is arranged on one side of the end oil return connector, threads are arranged on the surface of the connection port B, and an oil return end connector B is arranged on the upper surface of the end oil return connector.

Preferably, the stretching mechanism comprises an end plate and a spring, the two ends of the spring are respectively provided with the end plate, a regular polygonal hole is formed in the middle of the end plate, and the regular polygonal hole formed in the end plate is matched with the metal head.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) through at oil return branch pipe externally mounted tension mechanism for oil return branch pipe is installing the back to fuel oil system, no matter oil return branch pipe is the little bent area state, and oil return branch pipe can not be in unsettled state, and anti-seismic performance has also obtained the improvement, has ensured the life of returning oil pipe.

(2) When the stretching mechanism is sleeved outside the oil return branch pipe, the end plate props against the side edge of the three-way oil return joint, and the metal head is just clamped in a regular polygonal hole formed in the middle of the end plate, so that the oil return branch pipe and the oil return joint are prevented from loosening and falling off.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic diagram of the structure of the oil return branch pipe.

FIG. 3 is a schematic diagram of a three-way oil return joint structure.

Fig. 4 is a schematic view of an end return joint structure.

Fig. 5 is a schematic structural view of the stretching mechanism.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: the utility model provides a from tensile oil return pipe, including oil return branch pipe 1, tee bend oil return joint 2, tip oil return joint 3, straining device 4, the oil return is responsible for 5 and oil return and always connects 6, 1 both ends of oil return branch pipe link to each other with tee bend oil return joint 2 respectively, 1 keep away from of oil return branch pipe of tip and connect 2 one end of tee bend oil return joint and link to each other with tip oil return joint 3, tee bend oil return joint 2 has a plurality of, 1 outside surface of oil return branch pipe is provided with straining device 4, 2 of tee bend oil return joint 2 of keeping away from tip oil return joint 3 the most keep away from and connect 1 one end of oil return branch pipe and be responsible for 5 one end with the oil return and.

As shown in fig. 2, the oil return branch pipe 1 is a metal hose, two ends of the oil return branch pipe 1 are respectively provided with a metal head 11, the cross section of the metal head 11 is a positive variable shape, and an internal thread is arranged inside the metal head 11.

As shown in fig. 3, a tee cavity is arranged inside the tee oil return joint 2, two ends of the tee oil return joint 2 are both provided with a connection port a21, the surface of the connection port a21 is provided with threads, and the upper surface of the tee oil return joint 2 is provided with an oil return end joint a 22.

As shown in fig. 4, the end portion oil return joint 3 is provided with a connection port B31, a connection port B31 is provided with a screw thread on the surface, and an oil return end joint B32 is provided on the upper surface of the end portion oil return joint 3.

As shown in fig. 5, the stretching mechanism 4 includes an end plate 41 and a spring 42, the end plate 41 is disposed at both ends of the spring 42, a regular polygonal hole is opened at the middle position of the end plate 41, and the regular polygonal hole opened by the end plate 41 is matched with the metal head 11.

The use principle is as follows: connecting a connecting port B31 on the side of an end oil return joint 3 with one end of an oil return branch pipe 1 through screw thread, sleeving a stretching mechanism 4 on the oil return branch pipe 1, connecting the other end of the oil return branch pipe 1 with a connecting port A21 on one side of a three-way oil return joint 2 through screw thread, connecting the other end of the three-way oil return joint 2 with another oil return branch pipe 1 through screw thread, sleeving a stretching mechanism 4 on the oil return branch pipe 1, connecting the other end of the oil return branch pipe 1 with another three-way oil return joint 2 through screw thread, repeatedly installing a plurality of three-way oil return joints 2, after the oil return branch pipes 1 and the stretching mechanism 4, connecting one end of the last three-way oil return joint 2, which is far away from the main pipe oil return branch pipe 1, with an oil return joint 5, completing installation, when a spring 42 in the stretching mechanism 4 is installed on the outer side of the oil return branch pipe 1, the, after the oil return branch pipe 1 is installed in a fuel system, no matter whether the oil return branch pipe 1 is in a slightly bent area state or not, the oil return branch pipe 1 is not in a suspended state, the anti-seismic performance is improved, and the service life of the oil return pipe is guaranteed; when the stretching mechanism 4 is sleeved outside the oil return branch pipe 1, the end plate 41 props against the side edge of the three-way oil return joint 2, and the metal head 11 is just clamped in a regular polygonal hole formed in the middle of the end plate 41, so that the oil return branch pipe and the oil return joint are prevented from loosening and falling off.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a self-stretching returns oil pipe which characterized in that: including oil return branch pipe (1), tee bend oil return joint (2), tip oil return joint (3), tension mechanism (4), the oil return is responsible for (5) and oil return total joint (6), oil return branch pipe (1) both ends link to each other with tee bend oil return joint (2) respectively, the tip oil return branch pipe (1) is kept away from and is connected tee bend oil return joint (2) one end and is linked to each other with tip oil return joint (3), tee bend oil return joint (2) has a plurality of, oil return branch pipe (1) outside surface is provided with tension mechanism (4), and the farthest is from one of tip oil return joint (3) tee bend oil return joint (2) are kept away from and are connected oil return branch pipe (1) one end and are responsible for (5) one end and link to each other with the oil return, the oil return is responsible for (5.

2. A self-stretching oil return tube according to claim 1, characterized in that: oil return branch pipe (1) is a metal collapsible tube, oil return branch pipe (1) both ends are provided with metal head (11) respectively, the cross-section of metal head (11) is just for many deformations, metal head (11) inside is provided with the internal thread.

3. A self-stretching oil return tube according to claim 1, characterized in that: the tee bend oil return joint (2) inside is provided with the tee bend chamber, tee bend oil return joint (2) both ends all are provided with connection port A (21), connection port A (21) surface is provided with the screw thread, tee bend oil return joint (2) upper surface is provided with returns oil end and connects A (22).

4. A self-stretching oil return tube according to claim 1, characterized in that: tip oil return joint (3) one side is provided with connection port B (31), connection port B (31) surface is provided with the screw thread, tip oil return joint (3) upper surface is provided with oil return end and connects B (32).

5. A self-stretching oil return tube according to claim 1, characterized in that: the stretching mechanism (4) comprises end plates (41) and springs (42), the end plates (41) are arranged at two ends of each spring (42), regular polygonal holes are formed in the middles of the end plates (41), and the regular polygonal holes formed in the end plates (41) are matched with the metal heads (11).