Quick plug-in fuel line connection for carburetors

Abstract

The utility model discloses carburetor quick plug -in type fuel pipeline connecting device relates to engine technical field, including the connecting pipe and fixed peg, the outer surface of connecting pipe is equipped with the first outer thread, the inner wall of fixed peg is equipped with internal thread, the inner wall of internal thread is with the outer surface screw thread connection of first outer thread, the inner wall of fixed peg is equipped with chute, the outer surface of fixed peg is equipped with antiskid line, fixed peg adopts wear -resisting alloy material quality, the utility model discloses the ingenious cooperation of fixed peg and chute can fix the oil pipe steadily on the connecting pipe, through the screwing of fixed peg, make the chute can form the closer adhesion with fuel pipeline surface, with the progressive cooperation of thread's guide extrusion chute, reach the effect of more and more tight, effectively solved the problem of traditional clamp connection and not firm, improved the stability of fuel pipeline connection, and the antiskid line is convenient for operating personnel to exert the twist and avoid skidding.

Description

Technical Field

[0001] This utility model relates to the field of engines, and in particular to a carburetor quick-plug fuel line connection device. Background Technology

[0002] The carburetor fuel line connection device is a key part of the fuel supply system. Its main function is to connect the fuel tank, fuel pump (some equipment does not have this feature) and carburetor fuel inlet in an orderly series through components such as fuel lines, connectors, and clips, forming a closed and stable fuel passage. This ensures that fuel is delivered to the carburetor in a directional and continuous manner to meet the engine's operating requirements. It also helps maintain stable fuel delivery pressure by integrating or using one-way valves, flexible buffer fuel lines, and other structures. At the same time, it prevents fuel leakage through sealing and fixing designs, ensuring the reliability and safety of the entire fuel delivery process.

[0003] Traditional connecting pipes use clamps for connection, which are prone to loosening and instability due to engine vibration, fuel pressure fluctuations, etc., ultimately leading to fuel leakage and unstable fuel supply. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a quick-plug fuel line connection device for carburetors, which solves the problem of loosening and instability that can easily occur when using clamps to connect the connecting pipe.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a carburetor quick-plug fuel line connection device.

[0006] As a further technical solution of this utility model, it includes a connecting pipe and a fixing bolt. The outer surface of the connecting pipe is provided with a first external thread, and the inner wall of the fixing bolt is provided with an internal thread. The inner wall of the internal thread is threadedly connected to the outer surface of the first external thread. The inner wall of the fixing bolt is provided with a slanted groove, and the outer surface of the fixing bolt is provided with anti-slip texture. The fixing bolt is made of wear-resistant alloy material.

[0007] As a further technical solution of this utility model, three expansion rings are connected to the outer surface of the connecting pipe, and the three expansion rings are disposed at the liquid inlet end of the connecting pipe.

[0008] As a further technical solution of this utility model, a first limiting ring is provided on the outer surface of the connecting pipe, a second external thread is provided on the right end of the connecting pipe, and a second limiting ring is provided on the outer surface of the connecting pipe.

[0009] As a further technical solution of this utility model, a rubber pad is provided on the right side of the second limiting ring, and the rubber pad is made of wear-resistant rubber material.

[0010] As a further technical solution of this utility model, a connecting block is connected to the outer surface of the connecting pipe, and a connecting column is rotatably connected to the outer surface of the connecting block.

[0011] As a further technical solution of this utility model, a rotary valve is connected to the end of the connecting column away from the connecting pipe, and a flow restrictor is connected to the end of the connecting column away from the rotary valve after passing through the connecting pipe.

[0012] As a further technical solution of this utility model, the outer surface of the flow limiting plate is in contact with the inner wall of the connecting pipe, and the flow limiting plate is made of chrome-plated stainless steel.

[0013] This utility model provides a quick-plug fuel line connection device for carburetors, which has the following advantages compared with the prior art: This invention, through the ingenious combination of a fixing bolt and a slanted groove, can firmly fix the oil pipe to the connecting pipe. By tightening the fixing bolt, the slanted groove can form a tighter fit with the surface of the fuel line. With the progressive thread and the guiding compression of the slanted groove, the tightening effect is achieved, effectively solving the problem of the insecure fixation of traditional clamp connections and greatly improving the stability of the fuel line connection. At the same time, the anti-slip texture makes it easy for operators to apply force to tighten and avoid slippage. The wear-resistant alloy material used can enhance the wear resistance and durability of the overall structure, reduce wear during long-term use, extend the service life of the device, and thus ensure the reliability and safety of the fuel delivery process. Attached Figure Description

[0014] Figure 1 A front view of a carburetor quick-connect fuel line connection device; Figure 2 This is a schematic diagram of the internal structure of the connecting pipe in a carburetor quick-plug fuel line connection device. Figure 3 A schematic diagram of the internal structure of the retaining bolt in a carburetor quick-plug fuel line connection device; Figure 4 A post-planed view of a carburetor quick-plug fuel line connection device; Figure 5 This is a rear view of the carburetor quick-connect fuel line connection device.

[0015] In the diagram: 1. Connecting pipe; 2. First external thread; 3. Fixing bolt; 4. Internal thread; 5. Inclined groove; 6. Anti-slip texture; 7. Connecting block; 8. Expanding ring; 9. First limiting ring; 10. Second limiting ring; 11. Rubber pad; 12. Second external thread; 13. Connecting column; 14. Flow restrictor; 15. Rotary valve. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-5 This utility model provides a technical solution for a carburetor quick-plug fuel line connection device: it includes a connecting pipe 1 and a fixing bolt 3. The outer surface of the connecting pipe 1 is provided with a first external thread 2, and the inner wall of the fixing bolt 3 is provided with an internal thread 4. The inner wall of the internal thread 4 is threadedly connected to the outer surface of the first external thread 2. The inner wall of the fixing bolt 3 is provided with a groove 5. The groove 5 is a key structure on the fixing bolt 3 to achieve stable fixing of the fuel line. When the fixing bolt 3 is screwed into the first external thread 2 on the outer surface of the connecting pipe 1 through the internal thread 4 on the inner wall, as the fixing bolt 3 is continuously screwed, the groove 5 on the inner wall will gradually contact the outer surface of the fuel line sleeved on the connecting pipe 1. Because the groove 5 is inclined, under the axial thrust brought by the thread progression, the groove wall of the groove 5 will generate directional guiding and squeezing on the surface of the fuel line. The outer surface of the fixing bolt 3 is provided with anti-slip texture 6, and the fixing bolt 3 is made of wear-resistant alloy material.

[0018] like Figure 1 As shown, three expansion rings 8 are connected to the outer surface of the connecting pipe 1. The three expansion rings 8 are set at the liquid inlet end of the connecting pipe 1. The protruding structure of the expansion rings 8 can provide initial support to the inner wall of the oil pipe after it is inserted, so that the oil pipe is initially positioned on the connecting pipe 1. This prevents the oil pipe from slipping or misaligning before the subsequent fixing bolt 3 is tightened, and lays a stable foundation for the subsequent fixing bolt 3 to be tightened through the inclined groove 5 and the threaded engagement, further improving the overall efficiency and reliability of the oil pipe installation.

[0019] like Figure 5 As shown, a first limiting ring 9 is provided on the outer surface of the connecting pipe 1, a second external thread 12 is provided on the right end of the connecting pipe 1, and a second limiting ring 10 is provided on the outer surface of the connecting pipe 1. The first limiting ring 9 can prevent the fixing bolt 3 from being squeezed too tightly on the fuel line due to excessive tightening, which would cause damage to the fuel line. At the same time, it ensures that the fixing bolt 3 is in a reasonable position that can stably fix the fuel line, ensuring the uniformity of the fixing effect. The second limiting ring 10 ensures the relative position between the connecting pipe 1 and the carburetor is stable, laying the foundation for subsequent fuel delivery and cooperation with other components.

[0020] like Figure 4 As shown, a rubber pad 11 is provided on the right side of the second limiting ring 10. The rubber pad 11 is made of wear-resistant rubber.

[0021] like Figure 4As shown, a connecting block 7 is connected to the outer surface of the connecting pipe 1, and a connecting column 13 is rotatably connected to the outer surface of the connecting block 7. One end of the connecting column 13 is rotatably connected to the connecting block 7 on the outer surface of the connecting pipe 1, and the other end passes through the connecting pipe 1 and is connected to the external rotary valve 15 and the internal flow restrictor 14 of the connecting pipe 1, respectively. This connection method not only forms a linkage structure between the rotary valve 15 and the flow restrictor 14, but also ensures the stability of the connecting column 13 during rotation through the support of the connecting block 7, avoiding deviation or shaking, and providing a structural basis for subsequent transmission operations.

[0022] like Figure 4 As shown, a rotary valve 15 is connected to the end of the connecting post 13 away from the connecting pipe 1, and a flow restrictor 14 is connected to the end of the connecting post 13 away from the rotary valve 15 after passing through the connecting pipe 1.

[0023] like Figure 4 As shown, the outer surface of the flow restrictor 14 is in contact with the inner wall of the connecting pipe 1. The flow restrictor 14 is made of chrome-plated stainless steel. The flow restrictor 14 is the core component that directly realizes the opening and closing control and flow regulation of the internal fuel passage of the connecting pipe 1. By rotating and adjusting, the flow restrictor 14 controls the opening and closing of the connecting pipe 1.

[0024] The working principle of this utility model is as follows: During installation, the connecting pipe 1 is first screwed into the corresponding interface of the carburetor using the second external thread 12 on the right end of the connecting pipe 1. At this time, the second limiting ring 10 can limit the installation depth of the connecting pipe 1, preventing excessive screwing and damage to the components. The rubber gasket 11 on its right side is made of wear-resistant rubber, which can form a sealing buffer between the connecting pipe 1 and the carburetor, reducing wear caused by vibration, and enhancing the sealing of the connection to prevent fuel leakage. The end of the fuel line is aligned with the expansion ring 8 at the inlet end of the connecting pipe 1, and the internal thread 4 on the inner wall of the fixing bolt 3 is used to connect the fuel line with the carburetor. The first external thread 2 on the outer surface of the connecting pipe 1 is screwed in. As the fixing bolt 3 is screwed in, the inclined groove 5 on its inner wall will gradually contact the outer surface of the fuel line and generate extrusion. The progression of the thread and the guiding extrusion of the inclined groove 5 work together to firmly fix the fuel line to the connecting pipe 1. The anti-slip texture 6 on the outer surface of the fixing bolt 3 facilitates the application of force. The first limit ring 9 can limit the screwing range of the fixing bolt 3 to prevent it from being over-rotated and affecting the fuel line fixing effect. When the rotary valve 15 is rotated, the connecting column 13 will drive the flow restrictor 14 to rotate synchronously inside the connecting pipe 1. Its rotation can change the opening and closing of the fuel passage inside the connecting pipe 1.

[0025] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the art.

Claims

1. A carburetor quick-plug fuel line connection device, characterized in that, It includes a connecting pipe (1) and a fixing bolt (3). The outer surface of the connecting pipe (1) is provided with a first external thread (2). The inner wall of the fixing bolt (3) is provided with an internal thread (4). The inner wall of the internal thread (4) is threadedly connected to the outer surface of the first external thread (2). The inner wall of the fixing bolt (3) is provided with a slanted groove (5). The outer surface of the fixing bolt (3) is provided with anti-slip texture (6). The fixing bolt (3) is made of wear-resistant alloy material.

2. The carburetor quick-plug fuel line connection device according to claim 1, characterized in that, The outer surface of the connecting pipe (1) is connected to three expansion rings (8), and the three expansion rings (8) are disposed at the liquid inlet end of the connecting pipe (1).

3. The carburetor quick-plug fuel line connection device according to claim 1, characterized in that, The outer surface of the connecting pipe (1) is provided with a first limiting ring (9), the right end of the connecting pipe (1) is provided with a second external thread (12), and the outer surface of the connecting pipe (1) is provided with a second limiting ring (10).

4. The carburetor quick-plug fuel line connection device according to claim 3, characterized in that, A rubber pad (11) is provided on the right side of the second limiting ring (10), and the rubber pad (11) is made of wear-resistant rubber.

5. The carburetor quick-plug fuel line connection device according to claim 1, characterized in that, The outer surface of the connecting pipe (1) is connected to a connecting block (7), and the outer surface of the connecting block (7) is rotatably connected to a connecting column (13).

6. The carburetor quick-plug fuel line connection device according to claim 5, characterized in that, The end of the connecting column (13) away from the connecting pipe (1) is connected to a rotary valve (15), and the end of the connecting column (13) away from the rotary valve (15) passes through the connecting pipe (1) and is connected to a flow restrictor (14).

7. The carburetor quick-plug fuel line connection device according to claim 6, characterized in that, The outer surface of the flow restrictor (14) is in contact with the inner wall of the connecting pipe (1), and the flow restrictor (14) is made of chrome-plated stainless steel.

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