Automobile oil filling pipe convenient to connect

Abstract

The invention discloses an automobile oil filling pipe convenient to connect, and relates to the field of automobile driving, the automobile oil filling pipe comprises an oil filling pipeline, one end of the oil filling pipeline is provided with an oil filling port, one end of the oil filling pipeline far away from a mounting block is provided with a rapid fixing mechanism, and one end of the oil filling pipeline far away from the mounting block is provided with an auxiliary sealing fixing mechanism. The oil filling pipeline is directly arranged at a connector of an automobile oil tank in a sleeving mode, then the rapid fixing mechanism on the oil filling pipeline is directly pushed to clamp the surface of the oil filling pipeline, the oil filling pipeline abuts against the connector of the oil tank, and the rapid fixing mechanism drives the auxiliary sealing fixing mechanism while the rapid fixing mechanism is pushed; the oil filling pipeline on the oil tank connector is further tightened and fixed, so that the oil filling pipeline can be conveniently and quickly fixed at the oil tank connector of the automobile, the trouble that a tool needs to stretch into the oil tank connector of the automobile to fix the oil filling pipeline traditionally is reduced, and the possibility of oil leakage between the oil filling pipeline and the oil tank connector is reduced.

Description

Technical Field

[0001] The present application relates to the field of automobile driving, and in particular to an automobile refueling pipe which is easy to connect. Background Art

[0002] A car is a complex mechanical system consisting of multiple subsystems and components to achieve its functions such as driving, handling and ride comfort. The car's power system is composed of an engine, transmission, drive shaft and differential. The engine relies on the chemical energy of the car's fuel to convert it into mechanical energy to drive the car. The car's refueling pipe is a pipe that fills the car's fuel tank with fuel.

[0003] One end of the car's refueling pipe is fixed to the sheet metal of the car's outer shell refueling port, and the other end of the refueling pipe is connected to the interface of the car's fuel tank. When refueling, the outside world pours fuel into the refueling pipe, and then the fuel enters the fuel tank from the refueling pipe. Automobile fuel is generally highly corrosive, so when making the refueling pipe, the refueling pipe is made of specially treated rubber material to make the refueling pipe oil-resistant. However, the refueling pipe may still be aged and damaged after long-term use.

[0004] When replacing a car fuel pipe, the traditional replacement method is to remove the fuel pipe and replace it with a new one. The fuel pipe is directly put on the interface of the fuel tank, and then a metal tightening strip is put on the fuel pipe. The installer then reaches into the fuel tank interface and tightens the metal tightening strip with a screwdriver. The area where the fuel tank interface and the fuel pipe are connected generally has a small space. When using the metal tightening strip and screwdriver for installation and fixation, the position or direction of the screwdriver may need to be repeatedly adjusted, which makes the fuel pipe inconvenient to install and fix, and the fuel pipe may be unstable in installation. Summary of the invention

[0005] The purpose of the present application is to solve the problem that the area where the fuel tank interface and the fuel filler pipe are connected is generally small. When using a metal tightening strip and a screwdriver for installation and fixation, it may be necessary to repeatedly adjust the position or direction of the screwdriver, which makes the fuel filler pipe inconvenient to install and fix. The fuel filler pipe may be unstable in installation. The present application provides a car fuel filler pipe that is easy to connect.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions: A car refueling pipe that is easy to connect includes a refueling pipeline, a refueling port is provided at one end of the refueling pipeline, a mounting block is fixed to the end of the refueling pipeline close to the refueling port, a threaded hole for fixing is provided on the mounting block, a quick fixing mechanism is provided at the end of the refueling pipeline away from the mounting block, and an auxiliary sealing fixing mechanism is provided at the end of the refueling pipeline away from the mounting block.

[0007] By adopting the above technical solution, the refueling line is directly put on the interface of the automobile fuel tank, and then the quick fixing mechanism on the refueling line is directly pushed, and then the quick fixing mechanism clamps the surface of the refueling line to make the refueling line contact with the fuel tank interface. While pushing the quick fixing mechanism, the quick fixing mechanism drives the auxiliary sealing fixing mechanism, and the auxiliary sealing fixing mechanism further tightens and fixes the refueling line on the fuel tank interface, so that the refueling line can be fixed at the automobile fuel tank interface conveniently and quickly, reducing the trouble of traditionally fixing the refueling line by inserting tools into the automobile fuel tank interface for fixing, and reducing the possibility of oil leakage between the refueling pipe and the fuel tank joint.

[0008] Furthermore, the quick fixing mechanism comprises a supporting fixing plate fixed on the refueling pipeline, a supporting fixing ring is fixed on the supporting fixing plate, an annular clamping assembly is arranged on the supporting fixing ring, and a movable fixing assembly is arranged on the supporting fixing ring.

[0009] By adopting the above technical solution, the refueling line is directly put on the fuel tank interface, and the refueling line drives the supporting fixing plate, the supporting fixing plate drives the supporting fixing ring, and the supporting fixing ring is also put on the refueling interface. The annular clamping assembly is directly pushed by hand to move the annular clamping assembly on the supporting fixing ring, and the refueling line is pressed against the fuel tank interface. At the same time, the annular clamping assembly drives the moving fixing assembly, and the moving fixing assembly restricts and fixes the annular clamping assembly, so that the refueling line and the fuel tank interface can be connected more conveniently and quickly, reducing the trouble of the traditional fixing method that requires the tool to be inserted into the fuel tank interface for operation.

[0010] Furthermore, the annular clamping assembly includes a plurality of clamping blocks arranged in an annular shape on a supporting fixing ring, the clamping blocks penetrate the supporting fixing ring and are slidably connected to the supporting fixing ring, a pushing inclined surface is provided on the clamping block, a pushing ring is slidably connected to the supporting fixing ring, and the pushing inclined surface corresponds to the pushing ring.

[0011] By adopting the above technical solution, the push ring is directly moved, and the push ring contacts the push inclined block of the clamping block. Under the restriction of the push inclined surface, several clamping blocks are moved closer to the refueling line, so that the refueling line is firmly contacted at the fuel tank interface, thereby being able to quickly and conveniently fix the refueling line at the fuel tank interface.

[0012] Furthermore, an arc groove is formed at one end of the clamping block close to the refueling pipeline, and a plurality of arc grooves on the clamping block form a ring shape.

[0013] By adopting the above technical solution, when the clamping block completely contacts the refueling line, the edges of adjacent clamping blocks contact each other, so that the clamping block forms a ring, thereby reducing the possibility of oil leakage due to gaps between the refueling line and the fuel tank interface.

[0014] Furthermore, the movable fixed assembly includes two fixed blocks 1 symmetrically fixed on the supporting fixed ring, a fixed block 2 is arranged on the fixed block 1, and both the fixed block 1 and the fixed block 2 are provided with evenly distributed fixing teeth and face oppositely, a support block is slidably connected to the fixed block 2, the support block is fixedly connected to the pushing ring, a support spring is arranged between the support block and the fixed block 2, and both ends of the support spring are fixedly connected to the fixed block 2 and the support block.

[0015] By adopting the above technical solution, the support block drives the fixed block two, and the fixed block two moves on the fixed block one. When the clamping block completely contacts the refueling pipe, the fixed teeth on the fixed block two and the fixed teeth on the fixed block one are stuck together under the push of the support spring, so that the push ring keeps contacting the pushing inclined surface of the clamping block, so that after the push ring pushes the clamping block, the push ring can keep pushing the clamping block.

[0016] Furthermore, limiting strips are fixed on both sides of the support block, and the two limiting strips correspond to the two sides of the fixing block one.

[0017] By adopting the above technical solution, the two limit bars move along the edge of the fixed block one, the two limit bars limit the support block, and the support block limits the push ring, thereby reducing the possibility of the push ring rotating on the support fixed ring and reducing the possibility of the fixed block two detaching from the side of the fixed block one.

[0018] Furthermore, the auxiliary sealing fixing mechanism includes a restraining strip mounted on the refueling pipeline, the restraining strip is in a spiral shape, one end of the restraining strip is fixedly connected to the refueling pipeline, and the other end of the restraining strip is fixed with a connecting block, a rotating ring is fixed on the connecting block, the rotating ring is rotatably connected to a supporting fixed ring, and a rotating assembly is arranged between the rotating ring and the supporting fixed ring.

[0019] By adopting the above technical solution, while the pushing ring moves on the supporting fixed ring, the pushing ring drives the rotating component, the rotating component drives the rotating ring, the rotating ring drives the connecting block, and the connecting block drives one end of the restraining strip. Under the drag of the connecting block, the restraining strip is tightened on the refueling line, so that the refueling line can be further fixed, the stability of the refueling line at the fuel tank interface is improved, and the possibility of oil leakage between the refueling line and the fuel tank interface is reduced.

[0020] Furthermore, the rotating assembly includes a push rod fixed on the push ring, a sliding groove is provided on the supporting fixed ring and passes through the supporting fixed ring, the push rod is located in the sliding groove, and an inclined groove is provided on the rotating ring, and one end of the push rod is located in the inclined groove.

[0021] By adopting the above technical solution, the pushing ring drives the pushing rod to move in the sliding groove, and then the pushing rod moves in the inclined groove of the rotating ring. The pushing rod contacts the inner wall of the inclined groove to rotate the rotating ring, so that the clamping block can clamp the refueling line conveniently while tightening the restraining strip, so that the restraining strip can further restrain the refueling line.

[0022] In summary, the present application includes at least one of the following beneficial effects: 1. In the present application, the end of the refueling line away from the fixed block is directed toward the access port of the automobile fuel tank. After the refueling line is sleeved on the fuel tank interface, the push ring is directly moved to move toward the fuel tank, and then the push ring contacts the push inclined block of the clamping block. Under the restriction of the push inclined surface, several clamping blocks are allowed to approach the refueling line, and then under the push of the clamping block, the refueling line is firmly contacted at the fuel tank interface. At the same time, the push ring drives the support block, and the support block drives the fixed block 2. The fixed block 2 moves on the fixed block 1, and the fixed tooth inclined surface on the fixed block 2 contacts the fixed tooth inclined surface on the fixed block 1, so that the fixed The second block slides on the supporting block, and then the second fixed block squeezes the supporting spring. When the clamping block completely contacts the fueling pipe, the supporting spring pushes the fixing teeth on the second fixed block to clamp the fixing teeth on the first fixed block. With the support of the second fixed block and the supporting block, the pushing ring keeps contacting the pushing inclined surface of the clamping block, and the clamping block keeps clamping the fueling pipe, thereby achieving the purpose of conveniently and quickly fixing the fueling pipe at the interface of the automobile fuel tank, reducing the trouble of traditionally fixing the fueling pipe by inserting tools into the interface of the automobile fuel tank for fixing, and reducing the possibility of oil leakage between the fueling pipe and the fuel tank joint.

[0023] 2. In the present application, when the push ring is moved, the push ring drives the push rod, the push rod moves in the sliding groove, and then the push rod moves in the inclined groove of the rotating ring. The push rod contacts the inner wall of the inclined groove, so that the rotating ring rotates, and the connecting block drives one end of the restraining bar. Under the drag of the connecting block, the restraining bar is tightened on the refueling line, so that the refueling line is further contacted at the fuel tank interface, thereby achieving the purpose of further fixing the refueling line, improving the stability of the refueling line at the fuel tank interface, and reducing the possibility of oil leakage between the refueling line and the fuel tank interface.

[0024] 3. In the present application, when the support block drives the fixed block 2 to move, the support block drives two limit bars, and the two limit bars move along the edge of the fixed block 1. The two limit bars restrict the support block, and the support block restricts the push ring, thereby achieving the purpose of reducing the possibility of the push ring rotating on the support fixed ring and reducing the possibility of the fixed block 2 detaching from the side of the fixed block 1. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a first three-dimensional structural schematic diagram of the automobile refueling pipe in this application; Figure 2 It is a structural schematic diagram of the quick fixing mechanism in this application; Figure 3 It is a schematic diagram of the structural disassembly of the quick fixing mechanism in this application; Figure 4 This application Figure 2 The enlarged schematic diagram at A in the middle; Figure 5 This application Figure 3 Enlarged schematic diagram of point B in the middle.

[0026] Description of reference numerals: 1. Fueling pipeline; 2. Fueling port; 3. Mounting block; 4. Quick fixing mechanism; 41. Support fixing plate; 42. Support fixing ring; 43. Annular clamping assembly; 431. Clamping block; 432. Pushing ring; 433. Pushing ramp; 44. Moving fixing assembly; 441. Fixing block one; 442. Fixing block two; 443. Support block; 444. Support spring; 445. Limiting strip; 5. Auxiliary sealing fixing mechanism; 51. Restraining strip; 52. Connecting block; 53. Rotating ring; 54. Rotating assembly; 541. Pushing rod; 542. Sliding groove; 543. Inclined groove. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1 —5 Provide further details of this application.

[0028] The embodiment of the present application discloses a vehicle refueling pipe that is easy to connect.

[0029] Reference Figure 1 . Figure 2 and Figure 3 A car refueling pipe that is easy to connect includes a refueling pipeline 1, a refueling port 2 is provided at one end of the refueling pipeline 1, a mounting block 3 is fixed to the end of the refueling pipeline 1 close to the refueling port 2, a threaded hole for fixing is provided on the mounting block 3, a quick fixing mechanism 4 is provided at the end of the refueling pipeline 1 away from the mounting block 3, and an auxiliary sealing fixing mechanism 5 is provided at the end of the refueling pipeline 1 away from the mounting block 3.

[0030] When replacing the automobile refueling line 1, first remove the original refueling line 1, then move the new refueling line 1 between the automobile refueling tank and the automobile refueling port 2 sheet metal position, then let the refueling port 2 on the refueling line 1 pass through the position of the automobile oil port sheet metal, let the mounting block 3 abut on the automobile sheet metal, and then use the fixing bolts to fix the mounting block 3 and the automobile sheet metal together, then face the end of the refueling line 1 away from the mounting block 3 to the access port of the automobile fuel tank, then directly put the refueling line 1 on the interface of the automobile fuel tank, and then directly push the quick fixing mechanism 4 on the refueling line 1, and then the quick fixing mechanism 4 clamps the surface of the refueling line 1, let the refueling line 1 abut on the fuel tank interface, and complete the fixation between the refueling pipe and the fuel tank interface. While pushing the quick fixing mechanism 4, The quick fixing mechanism 4 drives the auxiliary sealing fixing mechanism 5, and the auxiliary sealing fixing mechanism 5 further tightens and fixes the refueling line 1 on the fuel tank interface, by directly putting the refueling line 1 on the automobile fuel tank interface, and then directly pushing the quick fixing mechanism 4, so that the quick fixing mechanism 4 can make the refueling line 1 contact the fuel tank interface, and at the same time, the quick fixing mechanism 4 drives the auxiliary sealing fixing mechanism 5, and the auxiliary sealing fixing mechanism 5 further tightens and fixes the refueling line 1, so that the refueling line 1 can be fixed at the automobile fuel tank interface conveniently and quickly, reducing the trouble of traditionally fixing the refueling line 1 by inserting tools into the automobile fuel tank interface for fixing, and reducing the possibility of oil leakage between the refueling pipe and the fuel tank joint.

[0031] Reference Figure 2 , Figure 3 , Figure 4 and Figure 5 The quick fixing mechanism 4 includes a supporting fixing plate 41 fixed on the refueling pipeline 1, a supporting fixing ring 42 is fixed on the supporting fixing plate 41, an annular clamping component 43 is arranged on the supporting fixing ring 42, and a movable fixing component 44 is arranged on the supporting fixing ring 42.

[0032] First, the refueling line 1 is aligned with the interface of the automobile fuel tank, and then the refueling line 1 is directly sleeved on the fuel tank interface, and at the same time, the refueling line 1 drives the supporting fixed plate 41, and the supporting fixed plate 41 drives the supporting fixed ring 42, and the supporting fixed ring 42 is also sleeved on the refueling interface. Then, the operator does not need to use tools, and directly pushes the annular clamping assembly 43 by hand to move the annular clamping assembly 43 on the supporting fixed ring 42, so that the refueling line 1 is pressed against the fuel tank interface, and at the same time, the annular clamping assembly 43 drives the moving fixed assembly 44, and the moving fixed assembly 44 The annular clamping assembly 43 is restricted and fixed, so that the annular clamping assembly 43 always keeps clamping the refueling line 1. The refueling line 1 is sleeved on the fuel tank interface while the supporting fixing ring 42 is also sleeved on the refueling interface. Then, the refueling line 1 is clamped by the annular clamping assembly 43, and the mobile fixing assembly 44 is used to restrict the annular clamping assembly 43. This makes it more convenient and quick to connect the refueling line 1 to the fuel tank interface, reducing the trouble of the traditional fixing method that requires the tool to be inserted into the fuel tank interface for operation.

[0033] Reference Figure 2 , Figure 3 , Figure 4 and Figure 5 The annular clamping assembly 43 includes a plurality of clamping blocks 431 arranged in an annular shape on the supporting and fixing ring 42. The clamping block 431 penetrates the supporting and fixing ring 42 and is slidably connected to the supporting and fixing ring 42. A pushing inclined surface 433 is provided on the clamping block 431. A pushing ring 432 is slidably connected to the supporting and fixing ring 42. The pushing inclined surface 433 corresponds to the pushing ring 432.

[0034] After the refueling line 1 is sleeved on the fuel tank interface, the pushing ring 432 is directly moved to move the pushing ring 432 toward the fuel tank, and then the pushing ring 432 is against the pushing inclined block of the clamping block 431. Under the restriction of the pushing inclined surface 433, several clamping blocks 431 are allowed to approach the refueling line 1, and then, under the push of the clamping block 431, the refueling line 1 is firmly against the fuel tank interface. By sleeved the refueling line 1 on the fuel tank interface and then moving the pushing ring 432 to squeeze the clamping block 431, the clamping block 431 is allowed to against the refueling line 1 to the fuel tank interface, the refueling line 1 can be conveniently and quickly fixed to the fuel tank interface.

[0035] Reference Figure 2 , Figure 3 , Figure 4 and Figure 5 An arc groove is formed at one end of the clamping block 431 close to the refueling pipeline 1, and a plurality of arc grooves on the clamping block 431 form a ring shape.

[0036] Several clamping blocks 431 approach the refueling line 1 at the same time. When the clamping blocks 431 completely contact the refueling line 1, the edges of adjacent clamping blocks 431 contact each other, so that the clamping blocks 431 form a ring and contact the refueling line 1 firmly. The arc groove fits the arc surface of the refueling line 1 more closely. When several clamping blocks 431 contact the refueling line 1, a ring can be formed, thereby reducing the possibility of oil leakage due to gaps between the refueling line 1 and the fuel tank interface.

[0037] Reference Figure 2 , Figure 3 , Figure 4 and Figure 5 The movable fixing assembly 44 includes two fixing blocks 441 symmetrically fixed on the supporting fixing ring 42, a fixing block 442 is arranged on the fixing block 441, and evenly distributed fixing teeth are provided on the fixing block 441 and the fixing block 442, and the fixing teeth are in opposite directions. A supporting block 443 is slidably connected to the fixing block 442, and the supporting block 443 is fixedly connected to the pushing ring 432. A supporting spring 444 is arranged between the supporting block 443 and the fixing block 442, and both ends of the supporting spring 444 are fixedly connected to the fixing block 442 and the supporting block 443.

[0038] When the push ring 432 is moved, the push ring 432 drives the support block 443, and the support block 443 drives the second fixed block 442. The second fixed block 442 moves on the first fixed block 441, and the fixed tooth inclined surface on the second fixed block 442 contacts the fixed tooth inclined surface on the first fixed block 441, so that the second fixed block 442 slides on the support block 443, and then the second fixed block 442 squeezes the support spring 444. When the clamping block 431 completely contacts the refueling pipeline 1, the second fixed block 442 is pushed by the support spring 444. The fixed teeth on 442 are stuck together with the fixed teeth on the fixed block 1 441. With the support of the fixed block 2 442 and the support block 443, the pushing ring 432 keeps contacting with the clamping block 431 to push the inclined surface 433. By allowing the pushing ring 432 to drive the support block 443, and the support block 443 to drive the fixed block 2 442, the fixed block 2 442 can only move in one direction on the fixed block 1 441, so that after the pushing ring 432 pushes the clamping block 431, the pushing ring 432 can keep pushing the clamping block 431.

[0039] Reference Figure 4 and Figure 5, both sides of the support block 443 are fixed with limit bars 445, and the two limit bars 445 correspond to the two sides of the fixed block 1 441. When the support block 443 drives the fixed block 2 442 to move, the support block 443 drives the two limit bars 445, and the two limit bars 445 move along the edge of the fixed block 1 441. The two limit bars 445 limit the support block 443, and the support block 443 limits the push ring 432. By allowing the two limit bars 445 to limit the side of the support block 443, the possibility of the push ring 432 rotating on the support fixed ring 42 can be reduced, and the possibility of the fixed block 2 442 detaching from the side of the fixed block 1 441 can be reduced.

[0040] Reference Figure 2 , Figure 3 , Figure 4 and Figure 5 The auxiliary sealing fixing mechanism 5 includes a restraining strip 51 which is sleeved on the refueling pipeline 1. The restraining strip 51 is in a spiral shape. One end of the restraining strip 51 is fixedly connected to the refueling pipeline 1. A connecting block 52 is fixed to the other end of the restraining strip 51. A rotating ring 53 is fixed on the connecting block 52. The rotating ring 53 is rotatably connected to the supporting fixing ring 42. A rotating component 54 is arranged between the rotating ring 53 and the supporting fixing ring 42.

[0041] When the pushing ring 432 is moved and allowed to move on the supporting fixed ring 42, the pushing ring 432 drives the rotating component 54, the rotating component 54 drives the rotating ring 53, the rotating ring 53 drives the connecting block 52, the connecting block 52 drives one end of the restraining strip 51, and under the drag of the connecting block 52, the restraining strip 51 is tightened on the refueling line 1, so that the refueling line 1 is further in contact with the fuel tank interface. When the pushing ring 432 moves, the pushing ring 432 drives the rotating ring 53 to rotate, the rotating ring 53 drives the connecting block 52, and the connecting block 52 drives the restraining strip 51, so that the restraining strip 51 is tightened on the refueling line 1, so that the refueling line 1 can be further fixed, the stability of the refueling line 1 at the fuel tank interface is improved, and the possibility of oil leakage between the refueling line 1 and the fuel tank interface is reduced.

[0042] Reference Figure 2 , Figure 3 , Figure 4 and Figure 5 The rotating assembly 54 includes a pushing rod 541 fixed on the pushing ring 432, a sliding groove 542 is opened on the supporting fixed ring 42 and penetrates the supporting fixed ring 42, the pushing rod 541 is located in the sliding groove 542, and an inclined groove 543 is opened on the rotating ring 53, and one end of the pushing rod 541 is located in the inclined groove 543.

[0043] When the pushing ring 432 is moved, the pushing ring 432 drives the pushing rod 541, and the pushing rod 541 moves in the sliding groove 542, and then the pushing rod 541 moves in the inclined groove 543 of the rotating ring 53, and the pushing rod 541 contacts the inner wall of the inclined groove 543, so that the rotating ring 53 rotates, and the rotating ring 53 drives the connecting block 52 to tighten the restraining strip 51. When the pushing ring 432 is moved, the pushing ring 432 drives the pushing rod 541, and the pushing rod 541 drives the rotating ring 53 to rotate, so that the clamping block 431 can clamp the refueling line 1 while tightening the restraining strip 51, so that the restraining strip 51 can further restrain the refueling line 1.

[0044] Working principle: When replacing the automobile refueling line 1, first remove the original refueling line 1, then move the new refueling line 1 between the automobile refueling tank and the automobile refueling port 2 sheet metal position, then let the refueling port 2 on the refueling line 1 pass through the position of the automobile oil port sheet metal, let the mounting block 3 abut on the automobile sheet metal, and then use the fixing bolts to fix the mounting block 3 and the automobile sheet metal together, and then face the end of the refueling line 1 away from the mounting block 3 to the access port of the automobile fuel tank. After the refueling line 1 is sleeved on the fuel tank interface, directly move the push ring 432 to move the push ring 432 toward the fuel tank, and then push the ring 432 to abut the push bevel block of the clamping block 431. Under the restriction of the push bevel 433, let several clamping blocks 431 approach the refueling line 1, and then under the push of the clamping block 431, let the refueling line 1 firmly abut against the fuel tank interface.

[0045] When the pushing ring 432 moves, the pushing ring 432 drives the supporting block 443, and the supporting block 443 drives the second fixed block 442. The second fixed block 442 moves on the first fixed block 441, and the fixed tooth inclined surface on the second fixed block 442 contacts the fixed tooth inclined surface on the first fixed block 441, so that the second fixed block 442 slides on the supporting block 443, and then the second fixed block 442 squeezes the supporting spring 444. When the clamping block 431 completely contacts the refueling line 1, the fixed teeth on the second fixed block 442 and the fixed teeth on the first fixed block 441 are stuck together under the push of the supporting spring 444. Under the support of the second fixed block 442 and the supporting block 443, the pushing ring 432 keeps contacting the pushing inclined surface 433 of the clamping block 431, and the clamping block 431 keeps clamping the refueling line 1.

[0046] When moving the push ring 432 and allowing the push ring 432 to move on the supporting fixed ring 42, the push ring 432 drives the push rod 541, and the push rod 541 moves in the sliding groove 542, and then the push rod 541 moves in the inclined groove 543 of the rotating ring 53, and the push rod 541 contacts the inner wall of the inclined groove 543 to allow the rotating ring 53 to rotate, and the connecting block 52 drives one end of the restraining strip 51, and under the drag of the connecting block 52, the restraining strip 51 is tightened on the refueling line 1, so that the refueling line 1 further contacts the fuel tank interface, completing the direct connection between the refueling line 1 and the automobile fuel tank interface.

Claims

1. An automobile refueling pipe that is easy to connect, comprising a refueling pipeline (1), characterized in that: A refueling port (2) is provided at one end of the refueling pipeline (1); a mounting block (3) is fixed to the end of the refueling pipeline (1) close to the refueling port (2); a threaded hole for fixing is provided on the mounting block (3); a quick fixing mechanism (4) is provided at the end of the refueling pipeline (1) away from the mounting block (3); and an auxiliary sealing fixing mechanism (5) is provided at the end of the refueling pipeline (1) away from the mounting block (3).

2. The easily connectable automobile refueling pipe according to claim 1, characterized in that: The quick fixing mechanism (4) comprises a supporting fixing plate (41) fixed on the refueling pipeline (1), a supporting fixing ring (42) fixed on the supporting fixing plate (41), an annular clamping assembly (43) provided on the supporting fixing ring (42), and a movable fixing assembly (44) provided on the supporting fixing ring (42).

3. The easily connectable automobile refueling pipe according to claim 2, characterized in that: The annular clamping assembly (43) comprises a plurality of clamping blocks (431) arranged in an annular shape on the supporting fixing ring (42); the clamping blocks (431) penetrate the supporting fixing ring (42) and are slidably connected to the supporting fixing ring (42); a pushing inclined surface (433) is provided on the clamping block (431); a pushing ring (432) is slidably connected to the supporting fixing ring (42); and the pushing inclined surface (433) corresponds to the pushing ring (432).

4. The easily connectable automobile refueling pipe according to claim 3, characterized in that: An arc-shaped groove is formed at one end of the clamping block (431) close to the refueling pipeline (1), and a plurality of arc-shaped grooves on the clamping block (431) form a ring shape.

5. The easily connectable automobile refueling pipe according to claim 3, characterized in that: The movable fixing assembly (44) comprises two fixing blocks (441) symmetrically fixed on the supporting fixing ring (42); a fixing block (442) is arranged on the fixing block (441); the fixing block (441) and the fixing block (442) are both provided with evenly distributed fixing teeth and face in opposite directions; a supporting block (443) is slidably connected to the fixing block (442); the supporting block (443) is fixedly connected to the pushing ring (432); a supporting spring (444) is arranged between the supporting block (443) and the fixing block (442); and both ends of the supporting spring (444) are fixedly connected to the fixing block (442) and the supporting block (443).

6. The easily connectable automobile refueling pipe according to claim 5, characterized in that: Limiting strips (445) are fixed on both sides of the support block (443), and the two limiting strips (445) correspond to the two sides of the fixing block 1 (441).

7. The easily connectable automobile refueling pipe according to claim 3, characterized in that: The auxiliary sealing fixing mechanism (5) comprises a restraining strip (51) sleeved on the refueling pipeline (1), the restraining strip (51) being vortex-shaped, one end of the restraining strip (51) being fixedly connected to the refueling pipeline (1), the other end of the restraining strip (51) being fixed with a connecting block (52), a rotating ring (53) being fixed on the connecting block (52), the rotating ring (53) being rotatably connected to the supporting fixing ring (42), and a rotating assembly (54) being provided between the rotating ring (53) and the supporting fixing ring (42).

8. The easily connectable automobile refueling pipe according to claim 7, characterized in that: The rotating assembly (54) comprises a pushing rod (541) fixed on the pushing ring (432); a sliding groove (542) is provided on the supporting fixing ring (42) and penetrates the supporting fixing ring (42); the pushing rod (541) is located in the sliding groove (542); an inclined groove (543) is provided on the rotating ring (53); one end of the pushing rod (541) is located in the inclined groove (543).

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