CN218935623U - Joint for automobile fuel pipe - Google Patents

Abstract

The utility model discloses a connector for an automobile fuel pipe, which comprises a shell pipe, wherein the shell pipe comprises a pipe orifice section, a pipe inserting section and a soft pipe connecting section, the inner diameter of the pipe orifice section is larger than the outer diameter of the fuel pipe, a plurality of elastic pressing pieces are arranged in the pipe orifice section, the inner diameter of the pipe inserting section is matched with the outer diameter of the fuel pipe, the fuel pipe and the pipe inserting section form plug-in fit, and when the fuel pipe is inserted into the pipe inserting section, the elastic pressing pieces are used for elastic pressing the fuel pipe body. According to the utility model, the fuel pipe is inserted into the pipe insertion section along the pipe opening section, the fuel pipe and the pipe insertion section form plug-in fit, the sealing and leakage prevention are realized, the plurality of elastic pressing sheets arranged in the pipe opening section are used for pressing the fuel pipe body, the fuel pipe is fixed, the quick connection of the fuel pipe and the joint is realized, and the production and detection efficiency of a fuel pipe product is improved.

Description

Joint for automobile fuel pipe

Technical Field

The utility model relates to the technical field of fuel pipe joints, in particular to a joint for an automobile fuel pipe.

Background

The automobile fuel pipe is mainly used for providing a circulating pipeline of gasoline, wherein a fuel pipe is adopted to connect an oil tank positioned on a vehicle body with an engine, the air tightness of the fuel pipe is important, the automobile fuel pipe is required to be connected with a soft pipe during testing and use, and the fuel pipe and the soft pipe are quickly separated or connected during testing a fuel pipe product, so that the production efficiency and working procedures can be improved.

The utility model patent with the document number (CN 216045940U) discloses a connector of an oil pipe, which comprises an oil pipe and a connector, wherein the connector comprises a first connector part, a connecting part and a second connector part which are integrally formed, the first connector part, the connecting part and the second connector part are coaxial, the second connector part comprises an inner pipe and an outer pipe which are coaxial, the second connector part is fixedly connected with the oil pipe, the second connector part comprises an inner pipe and an outer pipe which are coaxial, the oil pipe is in threaded connection with the inner pipe, the oil pipe is in transition fit with the outer pipe, sealing glue is filled between the outer wall of the oil pipe and the inner wall of the outer pipe, and the connecting part of the outer wall of the oil pipe and the inner wall of the outer pipe is partially melted into a whole in an argon arc welding mode. The utility model has the advantages that the tightness and the structural strength of the oil pipe and the connector are improved while the conduction of the oil way is ensured by combining the screw connection and the welding. The main problems of the method are as follows: adopt threaded connection, the connection process is loaded down with trivial details inconvenient.

Disclosure of Invention

The utility model aims to provide a connector for an automobile fuel pipe, which can conveniently and rapidly connect the fuel pipe with the connector in an inserting mode and improve the production and detection efficiency of a fuel pipe product.

The aim of the utility model can be achieved by the following technical scheme: the utility model provides a joint for automobile fuel pipe, includes casing pipe, its characterized in that: the shell pipe comprises a pipe orifice section, a pipe inserting section and a soft pipe connecting section, wherein the inner diameter of the pipe orifice section is larger than the outer diameter of the fuel pipe, a plurality of spring plates are arranged in the pipe orifice section, the inner diameter of the pipe inserting section is matched with the outer diameter of the fuel pipe, the fuel pipe and the pipe inserting section form plug-in fit, and when the fuel pipe is inserted into the pipe inserting section, the spring plates spring the fuel pipe body.

As still further aspects of the utility model: a sealing groove is arranged in the tube inserting section, and a sealing ring is arranged in the sealing groove; the cross section of the sealing groove is arc-shaped, and the cross section of the sealing ring is circular; the number of the sealing grooves is two.

As still further aspects of the utility model: the inside of the pipe orifice section is a conical cylindrical cavity, the conical cylindrical cavity comprises a conical cavity section and a cylindrical cavity section, and a bent cambered surface is formed at the inward-turned part of the pipe wall of the cylindrical cavity section; the spring plate comprises a supporting plate and an elastic sheet, a circular arc surface is formed at the position where the supporting plate is connected with the elastic sheet, and the supporting plate is connected with the clamping ring; the snap ring is arranged at one end of the small diameter of the conical cavity section, and the circular arc surface is propped against the bending arc surface.

As still further aspects of the utility model: the fuel pipe is provided with an annular rib, a transitional cambered surface is formed at the joint of the annular rib and the fuel pipe, and the end part of the spring plate is turned inwards to form a spring plate cambered surface.

As still further aspects of the utility model: the pipe orifice section is connected with an outer protecting cover, and the outer protecting cover comprises a top plate, an outer protecting plate and an inner protecting plate; the inner guard plate comprises a plurality of clamping hooks and a plurality of jacking plates which are circumferentially arranged at intervals, the plurality of jacking plates respectively correspond to the plurality of elastic pieces, the end faces of the jacking plates jack the elastic pieces, and the clamping hooks are used for clamping the tube wall with the tube mouth section turned inwards; the outer protecting cover is made of plastic; the top plate, the outer guard plate and the inner guard plate are integrally formed.

As still further aspects of the utility model: the elastic sheet is provided with a stop block.

As still further aspects of the utility model: the outer side of the pipe wall of the cylindrical cavity section is connected with an annular supporting block which is used for supporting the end face of the outer guard plate.

As still further aspects of the utility model: the top plate is provided with a plurality of observation through holes corresponding to the clamping hooks.

The utility model has the beneficial effects that:

according to the utility model, the fuel pipe is inserted into the pipe insertion section along the pipe opening section, the fuel pipe and the pipe insertion section form plug-in fit, the sealing and leakage prevention are realized, the plurality of elastic pressing sheets arranged in the pipe opening section are used for pressing the fuel pipe body, the fuel pipe is fixed, the quick connection of the fuel pipe and the joint is realized, and the production and detection efficiency of a fuel pipe product is improved.

Drawings

FIG. 1 is a schematic view of the joint of the present utility model in appearance with a fuel pipe and a flexible pipe connection;

FIG. 2 is a schematic view of the joint of the present utility model in an exploded configuration with the fuel pipe and the flexible pipe;

FIG. 3 is a cross-sectional view of the joint of the present utility model in connection with a fuel pipe and a flexible pipe;

FIG. 4 is a cross-sectional view of a joint of the present utility model;

FIG. 5 is a cross-sectional view of a housing tube of the present utility model;

FIG. 6 is a schematic view of the structure of the spring plate and the snap ring according to the present utility model;

FIG. 7 is a schematic diagram of the connection of the outer cover to the snap tab and the snap ring of the present utility model;

FIG. 8 is a schematic view of the structure of the outer protecting cover of the present utility model.

A. A fuel pipe; a1, annular convex edges; a2, transitional cambered surfaces; B. a flexible tube; C. a clamp;

100. a joint;

10. a housing tube; 11. a nozzle section; 111. a conical cylindrical cavity; 112. a conical cavity section; 113. a cylindrical cavity section; 114. bending the cambered surface; 12. a cannula section; 121. sealing grooves; 122. a seal ring; 13. connecting a soft pipe section;

20. spring pressing sheets; 21. a support sheet; 22. a spring plate; 221. a cambered surface of the spring plate; 222. a stop block; 23. round corner cambered surface;

30. a clasp;

40. an outer cover; 41. a top plate; 411. observing the through hole; 42. an outer guard plate; 43. an inner guard board; 431. a hook; 432. a top pressing plate;

50. an annular supporting block.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar symbols indicate like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.

As shown in fig. 1-8, the utility model discloses a joint for an automobile fuel pipe, which comprises a shell pipe 10, wherein the shell pipe 10 comprises a pipe orifice section 11, an insertion pipe section 12 and a soft pipe connecting section 13, the soft pipe connecting section 13 is used for connecting a soft pipe B, the inner diameter of the pipe orifice section 11 is larger than the outer diameter of a fuel pipe A, a plurality of elastic pressing pieces 20 are arranged in the pipe orifice section 11, the inner diameter of the insertion pipe section 12 is matched with the outer diameter of the fuel pipe A, the fuel pipe A and the insertion pipe section 12 form insertion fit, and when the fuel pipe A is inserted into the insertion pipe section 12, the elastic pressing pieces 20 are used for pressing the pipe body of the fuel pipe A.

When the flexible pipe connecting pipe section 13 is used for connecting the flexible pipe B, the flexible pipe B can be sleeved on the outer side of the flexible pipe connecting pipe section 13, the flexible pipe B is extruded by the clamp C, the connection between the flexible pipe B and the flexible pipe connecting pipe section 13 is realized, the fuel pipe A is inserted into the pipe inserting section 12 along the pipe opening section 11, the fuel pipe A and the pipe inserting section 12 form plug-in fit, the sealing and leakage prevention are realized, the plurality of elastic pressing sheets 20 arranged in the pipe opening section 11 are used for pressing the pipe body of the fuel pipe A, the fuel pipe A is fixed, and the quick connection between the fuel pipe A and the joint 100 is realized; when the fuel pipe A and the joint 100 are required to be separated, the fuel pipe A is pulled out outwards, and when the force for pulling out the fuel pipe A is larger than the pressure of the elastic sheet 22 for pressing the fuel pipe body, the fuel pipe A is pulled out, so that the fuel pipe A and the joint 100 are quickly separated, and the joint 100 and the fuel pipe A are quickly connected and separated.

Further, in order to improve the tightness of the connection between the fuel pipe a and the joint 100, a seal groove 121 is provided in the pipe insertion section 12, and a seal ring 122 is provided in the seal groove 121; the seal ring 122 is made of rubber, and the seal groove 121 fixes the position of the seal ring 122 to prevent leakage. Preferably, the cross section of the seal groove 121 is arc-shaped, and the cross section of the seal ring 122 is circular; the circular seal ring 122 facilitates insertion of the fuel pipe a into the pipe insertion section 12, and more preferably, two sets of seal grooves 121 and seal rings 122 are provided, so that the tightness of the connection of the fuel pipe a with the joint 100 is better.

Further, the structure of the snap-plate 20 is shown in fig. 6, and the snap-plate comprises a supporting plate 21 and a spring plate 22, wherein the supporting plate 21 is connected with the spring plate 22 to form a round arc surface 23, the supporting plate 21 is connected with a clamping ring 30, the clamping ring 30 connects the independent snap-plate 20 into a whole, as shown in fig. 4, a conical cylindrical cavity 111 is arranged in the pipe orifice section 11, the conical cylindrical cavity 111 forms a conical cavity section 112 and a cylindrical cavity section 113, and a bent arc surface 114 is formed at the inner turnover of the pipe wall of the cylindrical cavity section 113.

When the elastic sheet 20 is used, the clamping ring 30 is arranged at one small-diameter end of the conical cavity section 112, one end, connected with the supporting sheet 21 and the elastic sheet 22, of the supporting sheet is restrained by the clamping ring 30, the round-corner cambered surface 23 at the connecting position of the supporting sheet 21 and the elastic sheet 22 is propped against the bending cambered surface 114, the tube wall of the cylindrical cavity section 113 is turned inwards to prevent the elastic sheet 20 from slipping off the conical cylindrical cavity 111, the elastic sheet 20 is fixed in the conical cylindrical cavity 111, and the clamping ring 30 and the elastic sheet 20 are conveniently taken out for replacement when the elastic sheet 20 is damaged or the elasticity is reduced and needs to be replaced.

Further, as shown in fig. 2, the structure of the fuel pipe a is that the fuel pipe a is provided with an annular convex rib A1, a transitional cambered surface A2 is formed at the joint of the annular convex rib A1 and the fuel pipe a, an elastic sheet cambered surface 221 is formed at the end part of the elastic sheet 22, when the fuel pipe a is inserted into the pipe inserting section 12, the elastic sheet cambered surface 221 at the end part of the elastic sheet 22 props against the transitional cambered surface A2 of the fuel pipe a by means of elastic pressure and friction force, the fuel pipe a can be fixed, the fuel pipe a is prevented from slipping outwards, and when the fuel pipe a is pulled out, the elastic sheet cambered surface 221 is matched with the cambered surface of the transitional cambered surface A2 of the fuel pipe a, so that the pulling-out of the fuel pipe a is not blocked.

Further, the pipe orifice section 11 is connected with the outer protecting cover 40, the outer protecting cover 40 is arranged on the outer side of the shell pipe 10, so that the shell pipe 10 can be protected, meanwhile, the outer protecting cover 40 is additionally arranged on the shell pipe 10, so that the handling operation can be facilitated, the connection of the joint 100 and the fuel pipe A is facilitated, and the structure of the outer protecting cover 40 comprises a top plate 41, an outer protecting plate 42 and an inner protecting plate 43; the inner guard plate 43 includes a plurality of hooks 431 and a plurality of pressing plates 432 circumferentially spaced apart, the pressing plates 432 respectively correspond to the plurality of elastic sheets 22, the end faces of the pressing plates 432 press the elastic sheets 22, and the hooks 431 are used for clamping the tube wall of the tube mouth section 11.

As shown in fig. 7, when in use, the cylindrical cavity section 113 is inserted between the outer guard plate 42 and the inner guard plate 43, the hooks 431 are clamped on the turned-in pipe wall of the pipe orifice section 11, the end face of the top pressing plate 432 presses the elastic sheet 22, and the top pressing plate 432 can prevent the elastic sheet 22 from being extruded and deformed by the annular convex edges A1 when the fuel pipe a is pulled out; simultaneously, the outer protecting cover 40 is pressed to axially slide along the joint 100, and the elastic sheet 22 can be pushed by the pushing plate 432, so that the elastic sheet 22 is separated outwards, and the fuel pipe A is conveniently pulled out; preferably, the outer protecting cover 40 is made of plastic, and the plastic has good plasticity and toughness; the outer protecting cover 40 is convenient to produce, install and replace, and more preferably, the top plate 41, the outer protecting plate 42 and the inner protecting plate 43 are integrally formed, so that the outer protecting cover 40 is convenient to produce, and the overall strength of the outer protecting cover 40 is improved. Preferably, the outer surface of the outer guard 42 is provided with anti-slip patterns to further facilitate handling.

Further, the spring 22 is provided with a stop 222, and the stop 222 is used for blocking the end face of the pressing plate 432. The stop 222 can fix the positions of the top pressing plate 432 and the spring 22, so that the top pressing plate 432 can better support the spring 22.

Further, the outer side of the pipe wall of the cylindrical cavity section 113 is connected with an annular supporting block 50, and the annular supporting block 50 is used for supporting the end face of the outer guard plate 42. The annular joist 50 may define the location of the outer cover 40 to prevent the outer cover 40 from over-pressing the housing tube 10.

Further, the top plate 41 is provided with a plurality of observation through holes 411 corresponding to the positions of the hooks 431. The condition of the hooks 431 clamping the tube wall of the tube section 11 turned inwards can be observed through the observation through holes 411, so that the outer protecting cover 40 is ensured to be installed correctly.

The principle of the utility model is as follows: the utility model discloses a connector for an automobile fuel pipe, which is characterized in that a plurality of spring sheets 20 are arranged on a pipe orifice section 11, when a fuel pipe A is inserted into a connector 100, the spring sheets 20 spring the pipe body of the fuel pipe A to fix the fuel pipe A, and the fuel pipe A and a pipe insertion section 12 form plug-in fit, seal and leak-proof, so that the quick connection and separation of the fuel pipe A and the connector 100 are realized.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

It is to be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counter-clockwise," "axial," "radial," "circumferential," and the like are directional or positional relationships as indicated based on the drawings, merely to facilitate describing the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature.

Claims (8)

1. A joint for automotive fuel pipes, comprising a casing pipe (10), characterized in that: the shell pipe (10) comprises a pipe orifice section (11), an insertion pipe section (12) and a soft pipe section (13), wherein the inner diameter of the pipe orifice section (11) is larger than the outer diameter of a fuel pipe (A), a plurality of elastic pressing pieces (20) are arranged in the pipe orifice section (11), the inner diameter of the insertion pipe section (12) is matched with the outer diameter of the fuel pipe (A), the fuel pipe (A) and the insertion pipe section (12) form plug-in fit, and when the fuel pipe (A) is inserted into the insertion pipe section (12), the elastic pressing pieces (20) are used for elastic pressing the body of the fuel pipe (A).

2. A joint for an automotive fuel pipe as claimed in claim 1, wherein: a sealing groove (121) is formed in the insertion pipe section (12), a sealing ring (122) is arranged in the sealing groove (121), the cross section of the sealing groove (121) is arc-shaped, the cross section of the sealing ring (122) is circular, and the number of the sealing grooves (121) is two.

3. A joint for an automotive fuel pipe as claimed in claim 2, wherein: the inside of the pipe orifice section (11) is a conical cylindrical cavity (111), the conical cylindrical cavity (111) comprises a conical cavity section (112) and a cylindrical cavity section (113), and a bent cambered surface (114) is formed at the inward-turned part of the pipe wall of the cylindrical cavity section (113);

the spring sheet (20) comprises a supporting sheet (21) and an elastic sheet (22), a circular arc surface (23) is formed at the position where the supporting sheet (21) is connected with the elastic sheet (22), and the supporting sheet (21) is connected with a clamping ring (30); the clamping ring (30) is arranged at one end of the small diameter of the conical cavity section (112), and the circular arc surface (23) abuts against the bending arc surface (114).

4. A joint for an automotive fuel pipe as claimed in claim 3, wherein: the fuel pipe (A) is provided with an annular convex rib (A1), a transitional cambered surface (A2) is formed at the joint of the annular convex rib (A1) and the fuel pipe (A), and the end part of the elastic sheet (22) is turned inwards to form an elastic sheet cambered surface (221).

5. A joint for an automotive fuel pipe as defined in claim 4, wherein: the pipe orifice section (11) is connected with an outer protecting cover (40), and the outer protecting cover (40) comprises a top plate (41), an outer protecting plate (42) and an inner protecting plate (43); the inner guard plate (43) comprises a plurality of clamping hooks (431) and a plurality of top pressing plates (432) which are circumferentially arranged at intervals, the top pressing plates (432) respectively correspond to the plurality of elastic sheets (22), the end faces of the top pressing plates (432) are used for pressing the elastic sheets (22), and the clamping hooks (431) are used for clamping the tube wall with the tube mouth section (11) turned inwards; the outer protecting cover (40) is made of plastic; the top plate (41), the outer guard plate (42) and the inner guard plate (43) are integrally formed.

6. A joint for an automotive fuel pipe as defined in claim 5, wherein: the elastic sheet (22) is provided with a stop block (222).

7. A joint for an automotive fuel pipe as defined in claim 5, wherein: the outer side of the pipe wall of the cylindrical cavity section (113) is connected with an annular supporting block (50), and the annular supporting block (50) is used for supporting the end face of the outer guard plate (42).

8. A joint for an automotive fuel pipe as defined in claim 5, wherein: the top plate (41) is provided with a plurality of observation through holes (411) corresponding to the positions of the clamping hooks (431).

Images