CN209762519U

CN209762519U - Pipe joint

Info

Publication number: CN209762519U
Application number: CN201920227843.3U
Authority: CN
Inventors: 黄广强
Original assignee: SAIC Chery Automobile Co Ltd
Current assignee: Chery Automobile Co Ltd
Priority date: 2019-02-22
Filing date: 2019-02-22
Publication date: 2019-12-10
Anticipated expiration: 2029-02-22

Abstract

The utility model discloses a pipe joint, which comprises a male joint and a female joint which are connected with each other, wherein an outer pipe wall at one end of the male joint is provided with an outer convex block which protrudes outwards, an inner convex block which protrudes towards the middle part of a pipe cavity is arranged on an inner pipe wall at one end of the female joint, the outer pipe diameter of an outer pipe section where the outer convex block is positioned is consistent with the inner pipe diameter of an inner pipe section where the inner convex block is positioned, the male joint and the female joint are mutually inserted when the outer convex block and the inner convex block are mutually staggered, the male joint and the female joint are mutually inserted and connected, the rear end surface of the outer convex block is rotated when being flush with the inner end surface of the inner convex block, the rear end surface of the outer convex block and the inner end, meanwhile, the inner pipe cavities of the two pipes are communicated at the splicing part, and the pipe ends of the two pipes are in sealing fit, so that liquid flowing through the pipelines is prevented from leaking, the quick butt joint between the pipelines of the air window washer is realized, and the tightness and the reliability in butt joint are ensured.

Description

Pipe joint

Technical Field

The utility model belongs to the automobile manufacturing field, concretely relates to coupling for tube coupling.

Background

At present, in the assembly process of automobile assembly, when the windshield washer is installed and connected, the two-way joint is generally adopted to complete the butt joint between pipelines, in order to achieve reliable connection, the butt joint depth between the pipelines and the joint has strict requirements, but when a production line with fast beat is installed, an installer does not have an auxiliary tool to ensure the butt joint depth on one hand, and on the other hand, the installer easily neglects the butt joint depth due to the time catching up, and when a user uses the windshield washer, under the impact of washing liquid pressure, the phenomenon that the pipelines and the joint fall off easily occurs.

Meanwhile, the connecting pipeline of the air window washer is usually made of rubber, the rubber has a mechanism of expansion with heat and contraction with cold, and under the condition of cold weather in winter, in order to guarantee the process requirement during butt joint, workers need to spend more time for assembling. During assembly, in order to reduce the installation difficulty and achieve a good assembly effect, lubricating oil or vaseline or silicon oil type lubricating agents are adopted during butt joint of a joint and a pipeline in a factory, but the use of the lubricating agents can cause certain corrosion to the pipeline and influence the service life of the connection to a certain extent; on the other hand, during assembly, some lubricant is remained in the pipeline, the lubricant is incompatible with water, and the washing liquid can be sprayed out with the remained lubricant during spraying of the vehicle, so that bad experience is brought to users. How to realize the rapid butt joint of pipelines on the premise of ensuring reliable installation is a problem to be urgently solved by automobile manufacturers.

SUMMERY OF THE UTILITY MODEL

an object of the utility model is to provide a coupling can realize the quick butt joint between the wind window scrubber pipeline to leakproofness and reliability when guaranteeing the butt joint.

In order to realize the technical purpose, the utility model adopts the following technical scheme: a pipe joint comprises a male joint and a female joint which are connected with each other, wherein an outer pipe wall at one end of the male joint is provided with an outer convex block which protrudes outwards, an inner convex block which protrudes towards the middle part of a pipe cavity is arranged on an inner pipe wall at one end of the female joint, the outer pipe diameter of an outer pipe section where the outer convex block is located is matched with the inner pipe diameter of an inner pipe section where the inner convex block is located, the male joint and the female joint are mutually inserted when the outer convex block and the inner convex block are staggered, the male joint and the female joint are mutually inserted and connected to the rear end face of the outer convex block and the inner end face of the inner convex block and rotate when the rear end face of the outer convex block and the inner end face of the inner convex block are.

according to the technical scheme, after the male connector and the female connector are mutually inserted, the rear end face of the outer convex block and the inner end face of the inner convex block are attached to limit the axial separation and matching of the male connector and the female connector, meanwhile, the inner pipe cavities of the male connector and the female connector are communicated at the insertion position, the pipe ends of the male connector and the female connector form sealing matching, liquid flowing through the pipelines is prevented from leaking outwards, rapid butt joint between the pipelines of the windshield washer is achieved, and the tightness and the reliability in butt joint are guaranteed.

Drawings

FIG. 1 is a schematic view of a female coupling structure;

FIG. 2 is an axial cross-sectional view of the female connector;

FIG. 3 is a schematic structural view of a male connector;

FIG. 4 is an axial cross-sectional view of the male connector;

FIG. 5 is a schematic axial cross-sectional view of the female connector and the male connector after plugging.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A pipe joint comprises a male joint 10 and a female joint 20 which are connected with each other, wherein an outer pipe wall at one end of the male joint 10 is provided with an outer convex block 11 which protrudes outwards, an inner pipe wall at one end of the female joint 20 is provided with an inner convex block 21 which protrudes towards the middle of a pipe cavity, the outer pipe diameter of an outer pipe section where the outer convex block 11 is located is consistent with the inner pipe diameter of an inner pipe section where the inner convex block 21 is located, the male joint 10 and the female joint 20 are mutually inserted when the outer convex block 11 and the inner convex block 21 are staggered, the male joint 10 and the female joint 20 are mutually inserted until the rear end face of the outer convex block 11 is flush with the inner end face of the inner convex block 21, the outer convex block 11 rotates, and the rear end face of the outer convex block 11 is attached. After the male connector 10 and the female connector 20 are mutually inserted, the rear end face of the outer convex block 11 is attached to the inner end face of the inner convex block 21 to limit the axial separation and matching of the two, meanwhile, the inner pipe cavities of the two are communicated at the insertion position, the pipe ends of the two are in sealing matching, liquid flowing through the pipelines is prevented from leaking outwards, the quick butt joint of the air window washer pipelines is realized, and the tightness and the reliability in butt joint are ensured.

Preferably, the male connector 10 and the female connector 20 are stepped tubular, and the large diameter section thereof is provided with an outer convex block 11, an inner convex block 21 and a small diameter section which are respectively connected with the pipeline. The mutual grafting position of male joint 10 and female joint 20 is big diameter section, because male joint 10, female joint 20 is the step tubulose, little diameter section inserts in the external pipeline and constitutes sealing connection with external pipeline, the mouth of pipe of external pipeline supports and leans on the terminal surface of big diameter section, when actual assembly, the butt joint degree of depth will be guaranteed more than 10mm, so little diameter section and the junction of pipeline guarantee more than 10mm to the terminal surface distance of big diameter section, in order to ensure the reliability of connecting, thereby avoid taking place the condition that drops between pipeline and the joint.

Preferably, the inner protrusion 21 includes an inner axial section 211 arranged along the axial direction and an inner circumferential section 212 located at the pipe orifice, and the inner protrusion 21 is L-shaped as a whole.

preferably, the outer convex block 11 comprises an outer axial section 111 arranged along the axial direction and an insertion groove 112 located at the inner end of the outer axial section 111 and extending along the circumferential direction of the male connector 10, and the outer convex block 11 is L-shaped as a whole. The male connector 10 and the female connector 20 are inserted into each other when the outer protrusion 11 and the inner protrusion 21 are dislocated from each other, when the male connector 10 and the female connector 20 are inserted into each other until the rear end face of the outer protrusion 11 is flush with the inner end face of the inner protrusion 21, the male connector 10 and the female connector 20 are rotated in opposite directions, and the rear end face of the outer protrusion 11 and the inner end face of the inner protrusion 21 are attached to form a structure for limiting the axial separation and matching of the male connector 10 and the female connector, that is, when the male connector 10 and the female connector 20 are rotated in opposite directions, the inner circumferential section 212 of the inner protrusion 21 is inserted into the insertion groove 112 of the.

Preferably, in order to facilitate the plugging operation and production of the male connector 10 and the female connector 20, the outer convex blocks 11 and the inner convex blocks 21 are correspondingly arranged in 2-5 groups, the number is a preferred scheme, and specifically, the number of the groups is determined by manufacturers according to actual requirements.

Preferably, the bottom of the tube cavity of the large-diameter section of the female joint 20 is provided with a gasket 22, and the gasket 22 is made of elastic rubber. In the embodiment, the thickness of the gasket 22 is ensured to be more than 3mm, when the male connector 10 and the female connector 20 are inserted into each other, the pipe end of the large-diameter section of the male connector 10 abuts against the gasket 22, the male connector 10 is continuously inserted into the pipe cavity of the female connector 20, the pipe end of the large-diameter section of the male connector 10 compresses the gasket 22, the compression amount is ensured to be more than 1.5mm, so as to ensure the reliability of the seal between the male connector 10 and the female connector 20, the male connector 10 and the female connector 20 are rotated reversely, the inner circumferential section 212 of the inner convex block 21 is inserted into the insertion groove 112 of the outer convex block 11, the axial separation of the male connector 10 and the female connector 20 is limited, the sealing fit is formed, and the purpose.

Preferably, in order to ensure reliable sealing, the pipe orifice of the large-diameter section of the male joint 10 is provided with an annular plate 12, the outer end face of the annular plate 12 is flush with the end face of the pipe orifice of the male joint 10, and the annular plate 12 is arranged to increase the contact area between the end face of the pipe orifice of the male joint 10 and the gasket 22 in the female joint 20, so that the sealing is more reliable.

Claims

1. A pipe joint, characterized by: the pipe joint comprises a male joint (10) and a female joint (20) which are connected with each other, wherein an outer pipe wall at one end of the male joint (10) is provided with an outer convex block (11), an inner convex block (21) which protrudes towards the middle of a pipe cavity is arranged on an inner pipe wall at one end of the female joint (20), the outer pipe diameter of an outer pipe section where the outer convex block (11) is located is consistent with the inner pipe diameter of an inner pipe section where the inner convex block (21) is located, the male joint (10) and the female joint (20) are mutually inserted when the outer convex block (11) and the inner convex block (21) are mutually staggered, the male joint (10) and the female joint (20) are mutually inserted to rotate when the rear end face of the outer convex block (11) is flush with the inner end face of the inner convex block (21), and the rear end face of the outer convex block (11) is attached to the inner end face.

2. The pipe coupling according to claim 1, wherein: the male connector (10) and the female connector (20) are in a stepped tubular shape, and an outer convex block (11), an inner convex block (21) and a small-diameter section are arranged on the large-diameter section and are respectively connected with a pipeline.

3. A pipe joint according to claim 1 or 2, wherein: the inner lug (21) comprises an inner axial section (211) arranged along the axial direction and an inner circumferential section (212) positioned at the pipe orifice, and the inner lug (21) is L-shaped as a whole.

4. A pipe joint according to claim 1 or 2, wherein: the outer lug (11) comprises an outer axial section (111) arranged along the axial direction and an insertion groove (112) located at the inner end of the outer axial section (111) and extending along the circumferential direction of the male connector (10), and the outer lug (11) is L-shaped integrally.

5. The pipe coupling according to claim 2, wherein: the outer convex blocks (11) and the inner convex blocks (21) are correspondingly arranged in 2-5 groups.

6. The pipe coupling according to claim 5, wherein: the pipe cavity bottom of female joint (20) major diameter section is equipped with packing ring (22), and packing ring (22) adopt elastic rubber material.

7. The pipe coupling according to claim 5, wherein: the pipe orifice of the large-diameter section of the male joint (10) is provided with an annular plate (12), and the outer end face of the annular plate (12) is flush with the end face of the pipe orifice of the male joint (10).