Fuel oil pipeline quick-plug connector for automobile

Abstract

The utility model relates to the technical field of quick-plug connectors, and discloses a fuel oil pipeline quick-plug connector for an automobile, which comprises a sleeve, a plug is in threaded connection with the inside of the sleeve, a connecting pipeline is fixedly connected with the upper surface of the plug, a blocking ring is fixedly connected with the upper surface of the connecting pipeline, and a sealing ring is fixedly connected with the inner wall of the sleeve. A convex block is fixedly connected to the interior of the sleeve, a one-way switch is rotatably connected to the outer wall of the convex block, a hinge seat is fixedly connected to the upper surface of the plug, a U-shaped rod is rotatably connected to the interior of the hinge seat, a hydraulic rod is fixedly connected to the interior of the sleeve, and a pull ring is fixedly connected to the output end of the hydraulic rod. According to the utility model, the U-shaped rod is clamped into the limiting block, so that the plug is fixed in the sleeve, the effect of easily connecting the sleeve and the plug is achieved, the pull ring is driven by the hydraulic rod to enable the U-shaped rod to rotate to detach the plug, and the part can be used for a long time while the loosening problem is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of quick-insertion connectors, in particular to a quick-insertion connector for a fuel pipeline of an automobile. Background Art

[0002] The automobile fuel line quick connector is a key component used to connect and disconnect the automobile fuel system pipeline. It includes a plug and a sleeve, and is usually equipped with a sealing ring, a locking mechanism, a quick release button and other structures. The main purpose of this connector design is to provide a fast and convenient connection and disconnection method when repairing, replacing or maintaining the automobile fuel system, while ensuring the sealing and safety of the system, thereby improving work efficiency and maintenance convenience.

[0003] After searching, a fuel pipe quick-connect connector is disclosed in the announcement number: CN217813718U, which relates to the technical field of quick-connect connectors, and specifically includes a fuel pipe connector, the outer side of the fuel pipe connector is sequentially provided with a dustproof net and a horizontal bar, the outer side of the dustproof net is provided with an external ring and an elastic rope used in conjunction with the external ring, the inner side of the horizontal bar is provided with a fixing sticker, the dustproof net is fixedly connected to the top at the edge of the fuel pipe connector, the horizontal bar is fixed to the center of the left and right sides of the top of the dustproof net, and a cavity is opened through the center of the front side of the horizontal bar, and the fixing sticker is movably plugged into the inner side of the cavity. The device solves the problem that the existing vehicle is prone to vibration during driving, thereby synchronously affecting the fuel pipeline and the quick-connect connector, resulting in loose joints and fuel leakage. In this application, elastic ropes and fixing stickers are provided to prevent the problem of loose plugs caused by vibration, but the strength of the elastic ropes and fixing stickers cannot meet the requirements of automobile fuel pipelines. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a fuel pipeline quick-plug connector for automobiles, aiming to improve the problem that the fixing tools used in the prior art are too weak to meet the requirements of automobile fuel pipeline quick plugs.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a quick-connect connector for a fuel line of an automobile, comprising a sleeve, a plug being threadedly connected to the inside of the sleeve, a connecting pipe being fixedly connected to the upper surface of the plug, a blocking ring being fixedly connected to the upper surface of the connecting pipe, a limiting block 1 being fixedly connected to the inner wall of the sleeve, a protrusion being fixedly connected to the inside of the limiting block 1, a one-way switch being rotatably connected to the outer wall of the protrusion, an articulated seat being fixedly connected to the upper surface of the plug, a U-shaped rod being rotatably connected to the inside of the articulated seat, a hydraulic rod being fixedly connected to the inside of the sleeve, a pull ring being fixedly connected to the output end of the hydraulic rod, the inner wall of the pull ring being attached to the outer wall of the U-shaped rod, a fixed pipe being slidably provided inside the sleeve, and a fixing component being arranged on the outer wall of the fixed pipe.

[0006] Furthermore, the fixing assembly comprises a rubber sleeve, the inner wall of the rubber sleeve is fixedly connected to the outer wall of the fixed pipe, and the inner wall of the sleeve is provided with an O-ring.

[0007] Furthermore, an opening is provided inside the fixed pipe, and a chamber is provided inside the sleeve.

[0008] Furthermore, a sleeve flange is arranged inside the sleeve, and the inner wall of the sleeve flange is fitted on the outer wall of the rubber sleeve.

[0009] Furthermore, a second limiting block is arranged inside the blocking ring.

[0010] Furthermore, a bamboo joint outer diameter is fixedly connected inside the sleeve, and the upper surface of the second limit block is fitted on the lower surface of the bamboo joint outer diameter.

[0011] Furthermore, a groove is provided inside the sleeve, and the outer wall of the plug is rotatably connected inside the groove.

[0012] Furthermore, the outer wall of the O-ring is fitted onto the inner wall of the opening.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, the plug is screwed into the inner wall of the sleeve so that the U-shaped rod is stuck in the inner wall of the limit block, thereby fixing the plug connected to the U-shaped rod inside the sleeve, so as to easily connect the sleeve and the plug. The hydraulic rod arranged inside the groove drives the pull ring to rotate the U-shaped rod and remove the plug. The metal parts are strong and durable, and can effectively solve the problem of looseness caused by vibration.

[0015] 2. In the utility model, a rubber sleeve is arranged on the outer wall of the fixed pipe so that the fixed pipe can fit tightly against the inner wall of the sleeve, and at the same time, the plug is further prevented from loosening and slipping off. The upper surface of the blocking ring fits against the lower surface of the outer diameter of the bamboo section, thereby enhancing the airtightness of the chamber after the sleeve and the plug are connected, and preventing fuel leakage at the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional structural diagram of a quick-connect connector for a fuel line of an automobile proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of an O-ring portion of a quick-connect connector for a fuel line of an automobile proposed by the utility model;

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0019] Legend:

[0020] 1. Sleeve; 2. Plug; 3. Connecting pipe; 4. Limit block; 5. Bump; 6. One-way switch; 7. Articulated seat; 8. U-shaped rod; 9. Groove; 10. Hydraulic rod; 11. Pull ring; 12. Blocking ring; 13. Rubber sleeve; 14. Opening; 15. O-ring; 16. Bamboo section outer diameter; 17. Limit block; 18. Sleeve flange; 19. Fixed pipe; 20. Chamber. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Reference Figure 1 , Figure 2 and Figure 3 The utility model provides an embodiment: a quick-connect connector for a fuel pipeline of an automobile, comprising a sleeve 1, a plug 2 is threadedly connected inside the sleeve 1, a connecting pipe 3 is fixedly connected to the upper surface of the plug 2, a blocking ring 12 is fixedly connected to the upper surface of the connecting pipe 3, a limiting block 4 is fixedly connected to the inner wall of the sleeve 1, a protrusion 5 is fixedly connected inside the limiting block 4, a one-way switch 6 is rotatably connected to the outer wall of the protrusion 5, an articulated seat 7 is fixedly connected to the upper surface of the plug 2, a U-shaped rod 8 is rotatably connected inside the articulated seat 7, a hydraulic rod 10 is fixedly connected inside the sleeve 1, a pull ring 11 is fixedly connected to the output end of the hydraulic rod 10, the inner wall of the pull ring 11 is fitted to the outer wall of the U-shaped rod 8, a fixed pipe 19 is slidably provided inside the sleeve 1, and a fixing component is arranged on the outer wall of the fixed pipe 19.

[0023] Specifically, by rotating the plug 2 into the sleeve 1, the U-shaped rod 8 is inserted into the limit block 4, and the U-shaped rod 8 squeezes the one-way switch 6 and is restricted in the limit block 4, thereby achieving the effect of locking the plug 2. The plug 2 is threadedly connected to the sleeve 1 to further enhance the fixing effect.

[0024] Reference Figure 1 and Figure 2The fixing component includes a rubber sleeve 13, the inner wall of the rubber sleeve 13 is fixedly connected to the outer wall of the fixed pipe 19, an O-ring 15 is arranged on the inner wall of the sleeve 1, an opening 14 is opened inside the fixed pipe 19, a chamber 20 is opened inside the sleeve 1, a sleeve flange 18 is arranged inside the sleeve 1, the inner wall of the sleeve flange 18 is fitted on the outer wall of the rubber sleeve 13, a limiting block 17 is arranged inside the blocking ring 12, a bamboo joint outer diameter 16 is fixedly connected inside the sleeve 1, the upper surface of the limiting block 17 is fitted on the lower surface of the bamboo joint outer diameter 16, a groove 9 is opened inside the sleeve 1, the outer wall of the plug 2 is rotatably connected inside the groove 9, and the outer wall of the O-ring 15 is fitted on the inner wall of the opening 14.

[0025] Specifically, a rubber sleeve 13 is provided on the outer wall of the fixed pipe 19 to ensure that there will not be too much resistance when the plug 2 is inserted into the sleeve 1, and the outer wall of the fixed pipe 19 can fit tightly against the inner wall of the sleeve 1. The blocking ring 12 is then fitted on the lower surface of the bamboo section outer diameter 16 to increase the sealing effect of the chamber 20, thereby avoiding fuel leakage at the interface and causing danger. An O-ring 15 is provided inside the sleeve 1 to allow all the fuel to pass through the fixed pipe 19 to prevent leakage.

[0026] Working principle: when it is necessary to use the quick-connect connector for the fuel line of the automobile, first, the plug 2 is rotated as a whole into the interior of the sleeve 1 so that the threaded part of the outer wall of the plug 2 fits into the interior of the sleeve 1, and then the U-shaped rod 8 follows the plug 2 into the sleeve 1 until a specific position, and the rotating plug 2 makes the U-shaped rod 8 fit into the interior of the limit block 4, and the protrusion 5 can only allow the U-shaped rod 8 to enter but not go out, thereby achieving the effect of fixing the plug 2, and the limit block 4 can firmly fix the plug 2 connected to the U-shaped rod 8 to prevent the fuel line from loosening and falling, and then the rubber sleeve 13 and the blocking ring 12 set on the outer wall of the fixed pipe 19 can further prevent the fuel line from slipping, thereby achieving the effect of increasing the full-time stability, and when the pressure in the pipeline is too large, the blocking ring 12 fits tightly with the outer diameter 16 of the bamboo section to play a certain blocking role, preventing fuel from leaking at the connection and causing danger, and the hydraulic rod 10 drives the pull ring 11 to move so that the pull ring 11 can fit on the outer wall of the U-shaped rod 8, thereby causing the U-shaped rod 8 to rotate, thereby achieving the effect of easily removing the connecting pipe 3.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A quick-connect connector for a fuel line of an automobile, comprising a sleeve (1), characterized in that: The sleeve (1) is internally threadedly connected to a plug (2), the upper surface of the plug (2) is fixedly connected to a connecting pipe (3), the upper surface of the connecting pipe (3) is fixedly connected to a blocking ring (12), the inner wall of the sleeve (1) is fixedly connected to a limit block (4), the limit block (4) is internally fixedly connected to a protrusion (5), the outer wall of the protrusion (5) is rotatably connected to a one-way switch (6), the upper surface of the plug (2) is fixedly connected to a hinge seat (7), the hinge seat (7) is internally rotatably connected to a U-shaped rod (8), the sleeve (1) is internally fixedly connected to a hydraulic rod (10), the output end of the hydraulic rod (10) is fixedly connected to a pull ring (11), the inner wall of the pull ring (11) is in contact with the outer wall of the U-shaped rod (8), a fixed pipe (19) is slidably provided inside the sleeve (1), and a fixing component is provided on the outer wall of the fixed pipe (19).

2. A quick-connect connector for a fuel line of an automobile according to claim 1, characterized in that: The fixing assembly comprises a rubber sleeve (13), the inner wall of the rubber sleeve (13) is fixedly connected to the outer wall of the fixing pipe (19), and the inner wall of the sleeve (1) is provided with an O-ring (15).

3. A quick-connect connector for a fuel line of an automobile according to claim 2, characterized in that: An opening (14) is provided inside the fixed pipe (19), and a chamber (20) is provided inside the sleeve (1).

4. A quick-connect connector for a fuel line of an automobile according to claim 3, characterized in that: A sleeve flange (18) is arranged inside the sleeve (1), and the inner wall of the sleeve flange (18) is fitted on the outer wall of the rubber sleeve (13).

5. The quick-connect connector for a fuel line of an automobile according to claim 1, characterized in that: A second limiting block (17) is arranged inside the blocking ring (12).

6. A quick-connect connector for a fuel line of an automobile according to claim 5, characterized in that: The sleeve (1) is fixedly connected to a bamboo joint outer diameter (16) inside, and the upper surface of the second limit block (17) is fitted on the lower surface of the bamboo joint outer diameter (16).

7. A quick-connect connector for a fuel line of an automobile according to claim 1, characterized in that: A groove (9) is provided inside the sleeve (1), and the outer wall of the plug (2) is rotatably connected inside the groove (9).

8. The quick-connect connector for a fuel line of an automobile according to claim 3, characterized in that: The outer wall of the O-ring (15) is fitted onto the inner wall of the opening (14).

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