Automobile oil transportation elbow joint assembly

Abstract

The utility model discloses an automobile oil delivery elbow joint assembly, belongs to the technical field of automobile pipeline fittings, and provides a joint assembly capable of providing a higher protection effect for the end of an automobile oil delivery pipe, the automobile oil delivery elbow joint assembly comprises a transition pipe and a rotary connection sleeve, the main body part of the transition pipe is an elbow body, and the end of the elbow body is provided with a coaxial limiting ring and an embedded cone; the inner wall of the limiting ring is provided with an internal thread, the outer side face of the embedded cone is provided with a sealing conical surface which is gradually narrowed in the direction away from the bent pipe body, the screwing sleeve comprises a force application cylinder, one end of the force application cylinder is provided with an inner pressing ring, the outer side face of the inner pressing ring is provided with an external thread, and the inner wall of the inner pressing ring is a conical surface; the diameter of the inner wall of the inner pressing ring is gradually increased in the direction away from the force application cylinder. By designing the rotary connection sleeve with the inner pressing ring and the transition pipe with the embedded cone, the rotary connection sleeve is matched with the transition pipe through threads, the embedded cone is sleeved with the automobile oil conveying pipe, the automobile oil conveying pipe is pressed by the inner pressing ring, the connection strength can be guaranteed, and the end of the oil conveying pipe can be well shielded and protected.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of automobile pipeline accessories, and particularly relates to an automobile oil conveying elbow joint assembly. BACKGROUND

[0002] The automobile oil conveying pipe is usually connected by a clamp, and the end of the oil conveying pipe cannot be shielded by the clamp, so that the end of the pipe is prone to warping, and the inner wall of the pipe is more easily contaminated. SUMMARY

[0003] The application aims to provide a joint assembly which can provide higher protection for the end of the automobile oil conveying pipe.

[0004] To achieve the above purpose, the application provides an automobile oil conveying elbow joint assembly, which comprises a transition pipe and a screw joint sleeve, the main body part of the transition pipe is an elbow pipe body, the end of the elbow pipe body is provided with a coaxial limiting ring and an embedded cone, the inner wall of the limiting ring is provided with an internal thread, the outer side surface of the embedded cone is provided with a sealing taper surface which gradually narrows away from the elbow pipe body, the screw joint sleeve comprises a force applying cylinder, one end of the force applying cylinder is provided with an internal pressure ring, the outer side surface of the internal pressure ring is provided with an external thread which is suitable for cooperating with the internal thread, the inner wall of the internal pressure ring is a taper surface, and the diameter of the inner wall of the internal pressure ring gradually increases away from the force applying cylinder, so as to clamp the end of the oil conveying pipe together with the sealing taper surface.

[0005] As a preferred option, the two ends of the elbow pipe body are provided with limiting rings and embedded cones, and the limiting ring and the embedded cone at the same end are coaxial.

[0006] As a preferred option, the two ends of the elbow pipe body extend in perpendicular directions, and the middle part of the elbow pipe body is in a circular arc shape.

[0007] As a preferred option, the outer side surface of the elbow pipe body is a rib plate which is located on the inner side of the bending direction, and is used for ensuring the shape stability of the transition pipe.

[0008] As a preferred option, the rib plate extends to the outer side surface of the two limiting rings, and further improves the structural stability of the transition pipe.

[0009] As a preferred option, the inner wall of the internal pressure ring is further provided with a stepped groove, the stepped groove is annular and coaxial with the internal pressure ring, and since the internal pressure ring is coaxial with the embedded cone, the stepped groove is also coaxial with the embedded cone.

[0010] As a preferred option, the stepped groove has a plurality of stepped grooves which are equidistantly arranged along the axis of the internal pressure ring, and form a sealing pressing surface with uniform spacing.

[0011] As a preferred, the force applying cylinder is hexagonal prism, which is convenient to cooperate with wrench tool, so that the disassembly operation is more labor-saving.

[0012] Compared with the prior art, the application has the beneficial effects that:

[0013] (1) By designing the rotating sleeve with an inner pressure ring and the transition pipe with an inner embedded cone, the rotating sleeve is matched with the transition pipe through threads, the automobile oil delivery pipe is sleeved outside the inner embedded cone and is pressed by the inner pressure ring, which can not only ensure the connection strength, but also can well shield and protect the end of the oil delivery pipe, effectively avoiding the end of the oil pipe being raised to pollute the inner wall of the oil pipe with dust;

[0014] (2) By opening a stepped groove structure on the inner wall of the inner pressure ring, a plurality of annular sealing surfaces are formed between the inner wall of the end of the oil delivery pipe and the outer side surface of the inner embedded cone, which has high stability and leakage prevention performance. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a schematic view of the three-dimensional structure of the automobile oil delivery elbow joint assembly.

[0016] Figure 2 is a plane cross-sectional view of the automobile oil delivery elbow joint assembly.

[0017] Figure 3 is a three-dimensional structure cross-sectional view of the rotating sleeve and the transition pipe of the automobile oil delivery elbow joint assembly.

[0018] Figure 4 is a three-dimensional structure cross-sectional view of the transition pipe of the automobile oil delivery elbow joint assembly.

[0019] Figure 5 is a three-dimensional structure cross-sectional view of the rotating sleeve of the automobile oil delivery elbow joint assembly.

[0020] In the figure: 1, transition pipe; 101, elbow body; 102, rib plate; 103, limiting ring; 104, internal thread; 105, inner embedded cone; 106, sealing cone surface; 2, rotating sleeve; 201, force applying cylinder; 202, inner pressure ring; 203, external thread; 204, stepped groove. DETAILED DESCRIPTION

[0021] In the following, the application will be further described in conjunction with specific embodiments, and it should be noted that the following described embodiments or technical features can be combined in any manner to form new embodiments without conflict.

[0022] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0023] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0024] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0025] like Figures 1-5 The automotive oil supply elbow connector assembly shown includes a mating transition pipe 1 and a swivel sleeve 2. There is one transition pipe 1, but there are usually two swivel sleeves 2. The main body of the transition pipe 1 is a bend body 101. The end of the bend body 101 has a coaxial limiting ring 103 and an embedded cone 105. In fact, both ends of the bend body 101 have limiting rings 103 and embedded cones 105, and the limiting rings 103 and embedded cones 105 located at the same end are coaxial.

[0026] The two ends of the bent pipe body 101 extend in mutually perpendicular directions. The middle part of the bent pipe body 101 is a quarter-circle arc. The outer side of the bent pipe body 101 is specifically located on the inner side of the bending direction of the rib plate 102. The rib plate 102 extends to the outer side of the two limiting rings 103. The rib plate 102 can effectively improve the shape stability of the transition pipe 1.

[0027] The inner wall of the limiting ring 103 with a cylindrical surface is provided with an internal thread 104, the outer side of the embedded cone 105 has a sealing taper surface 106 gradually narrowing away from the elbow pipe body 101, the rotating sleeve 2 comprises a force applying cylinder 201, one end of the force applying cylinder 201 has a coaxial internal pressure ring 202, the outer side of the internal pressure ring 202 is a cylindrical surface and is provided with an external thread 203, the external thread 203 is just threadedly matched with the internal thread 104, the inner wall of the internal pressure ring 202 is a taper surface, and the diameter of the inner wall of the internal pressure ring 202 gradually increases away from the force applying cylinder 201, and is usually similar to the shape of the sealing taper surface 106.

[0028] The inner wall of the internal pressure ring 202 is further provided with a stepped groove 204, the stepped groove 204 is annular, coaxial with the internal pressure ring 202, the stepped groove 204 has a plurality of stepped grooves 204, and the stepped grooves 204 are equidistantly arranged along the axis of the internal pressure ring 202, the force applying cylinder 201 is hexagonal, the two ends of the force applying cylinder 201 are communicated, and the internal space is communicated with the internal space of the internal pressure ring 202.

[0029] Working principle: in use, the rotating sleeve 2 at both ends of the transition pipe 1 is removed, then the oil outlet end of the oil inlet pipe is sequentially inserted through the force applying cylinder 201 and the internal pressure ring 202 of one rotating sleeve 2, and then is sleeved outside one embedded cone 105, the force applying cylinder 201 is rotated, the internal pressure ring 202 is screwed with the limiting ring 103, the inner wall of the internal pressure ring 202 tightly presses the oil outlet end of the oil inlet pipe against the outer side of the embedded cone 105, the oil outlet end of the oil inlet pipe is blocked by the stepped groove 204 in the inner wall of the internal pressure ring 202 and cannot be loosened from the outside of the embedded cone 105, and a plurality of annular sealing surfaces are formed; the other end of the transition pipe 1 cooperates with the other rotating sleeve 2 to seal and connect the oil inlet end of the oil outlet pipe.

[0030] The above describes the basic principles, main features and advantages of the present application. It should be understood by those skilled in the art that the present application is not limited to the above embodiments, the above embodiments and descriptions in the specification are only the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. An automotive fuel transfer elbow fitting assembly characterized by: The utility model relates to a transition pipe (1) and a screw joint sleeve (2), the main part of the transition pipe (1) is elbow body (101), the end of elbow body (101) has coaxial limit ring (103) and inlaying cone (105), the inner wall of limit ring (103) is provided with internal thread (104), the outer side of inlaying cone (105) has gradually narrow sealing cone surface (106) to the direction away from elbow body (101), the screw joint sleeve (2) includes force cylinder (201), one end of force cylinder (201) has inner pressure ring (202), the outer side of inner pressure ring (202) is provided with external thread (203), is suitable for with internal thread (104) cooperation, the inner wall of inner pressure ring (202) is the cone surface, the inner wall diameter of inner pressure ring (202) gradually increases to the direction away from force cylinder (201).

2. The automotive fuel transfer elbow joint assembly of claim 1, wherein: The two ends of the elbow body (101) are provided with limit ring (103) and inlaying cone (105).

3. The automotive fuel transfer elbow joint assembly of claim 2, wherein: The two ends of the elbow body (101) extend in perpendicular directions.

4. The automotive fuel transfer elbow joint assembly of claim 3, wherein: The outer side of the elbow body (101) is a rib plate (102) on the inner side of the bending direction.

5. The automotive fuel transfer elbow joint assembly of claim 4, wherein: The rib plate (102) extends to the outer side of the two limit rings (103).

6. The automotive fuel transfer elbow joint assembly of any one of claims 1-5, wherein: The inner wall of the inner pressure ring (202) is further provided with a stepped groove (204), which is annular and coaxial with the inner pressure ring (202).

7. The automotive fuel transfer elbow joint assembly of claim 6, wherein: The stepped groove (204) has a plurality of stepped grooves (204) arranged equidistantly along the axis of the inner pressure ring (202).

8. The automotive fuel transfer elbow joint assembly of claim 7, wherein: The force cylinder (201) is a hexagonal prism.

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