Automobile fuel pipe joint assembling buckle

Abstract

The utility model discloses an automobile fuel pipe joint assembling buckle, and particularly relates to the technical field of fuel pipe connection, the automobile fuel pipe joint assembling buckle comprises a clamping ring and an insertion pipe, the inner part of the clamping ring is mutually sleeved with the outer wall of one end of the insertion pipe, and one end of a sleeve joint for connection is mutually sleeved with the inner part of the clamping ring through a connecting pipe; a plurality of oblique tooth grooves are obliquely formed in the outer wall of the connecting pipe, a fixing ring is arranged on the side, away from the sleeving head, of the clamping ring, and an adjusting ring slidably sleeves the position, corresponding to the clamping ring, of the outer wall of the inserting pipe; the section of a clamping ring used for clamping is oval, extrusion bolts are connected to the two sides of the interior of the clamping ring in a threaded mode, and a plurality of clamping teeth are arranged at the top end and the bottom end of the interior of the clamping ring. A fixing ring used for installation is fixedly connected with the outer wall of the insertion pipe, and the side, away from the clamping ring, of the fixing ring is rotationally connected with a threaded ring. The sealing device has the advantages of being convenient to clamp and fix to avoid separation, and convenient to extrude and adjust to keep sealing.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel pipe connection, in particular to an assembly buckle for an automobile fuel pipe joint. Background Art

[0002] Automobile fuel pipes are mainly used to provide a circulation pipeline for gasoline. Among them, the fuel pipe is used to connect the fuel tank and the engine on the vehicle body, and there are important requirements for the airtightness of the fuel pipe. When the automobile fuel pipe is in use, it needs to be connected to the corresponding engine structure. At the same time, because the fuel pipe is prone to damage after long-term use or when the fuel supply system is overhauled, it is necessary to quickly separate the connection between the fuel pipe and the corresponding equipment.

[0003] However, in actual use, there is usually no structure for fixing the buckle after clamping, which is likely to cause the buckle to come off. And after long-term plugging and unplugging or long-term use, the rubber pad is prone to wear or the rubber ring is prone to aging, resulting in insufficient tightness of the seal with the corresponding joint. And when installing for different equipment, there are also certain tolerances in its connectors, and the pipeline needs to be adjusted as required. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an assembly buckle for an automobile fuel pipe joint, which solves the problems of easy loosening of the joint, detachment of the buckle, insufficient tightness of the rubber seal, and the need for adjustment in the existing ones.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: An assembly buckle for an automobile fuel pipe joint includes a snap ring and an insertion pipe. One end of the outer wall of the insertion pipe is sleeved inside the snap ring. One end of the socket joint for connection is sleeved inside the snap ring through a connecting pipe. A plurality of inclined tooth grooves are obliquely opened on the outer wall of the connecting pipe. A fixing ring is arranged on one side of the snap ring away from the socket joint. An adjusting ring is slidably sleeved on the outer wall of the insertion pipe corresponding to the snap ring.

[0006] The snap ring for clamping has an elliptical cross-section, and both sides inside the snap ring are threadedly connected with extrusion bolts. A plurality of teeth are arranged at the top and bottom inside the snap ring.

[0007] The fixing ring for installation is fixedly connected to the outer wall of the insertion pipe. A threaded ring is rotatably connected to one side of the fixing ring away from the snap ring. Both sides of the fixing ring corresponding to the position of the connecting strip are provided with moving plates penetrating through. The outer wall of the moving plate is threadedly connected inside the threaded ring.

[0008] Both sides of the outer wall of the adjusting ring for extrusion are inclined towards the insertion pipe. Rubber rings are sleeved on both sides of the outer wall of the insertion pipe close to the adjusting ring. An extrusion ring is arranged on one side of the adjusting ring close to the fixing ring.

[0009] Preferably, one side of the engaging teeth near the center of the engaging ring inclines towards the fixed ring. The engaging teeth are correspondingly engaged with the helical grooves on the outer wall of the connecting pipe. One end of the extrusion bolt penetrates through the inside of the engaging ring and fits against the outer wall of the connecting pipe.

[0010] Preferably, the extrusion ring fits and presses against the rubber ring on one side of the adjusting ring. A retaining ring is disposed around the outer wall of one end of the insertion pipe close to the socket joint, and the retaining ring is fixedly attached to the rubber ring on one side of the adjusting ring.

[0011] Preferably, one side of the threaded ring is rotatably connected to the side wall of the fixed ring through a bearing. A surrounding thread is spirally arranged at the center inside the threaded ring, and a threaded groove corresponding to the threaded connection with the threaded ring is formed on one side surface of the moving plate close to the threaded ring.

[0012] Preferably, the connecting pipe is sleeved around the outer wall of the rubber ring, and one side surface of the extrusion ring fits and presses against the connecting pipe.

[0013] Preferably, the insertion pipe is fixedly connected to the vehicle fuel supply pipe, the socket joint is fixedly connected to the vehicle engine fuel injection device, and the inside of the insertion pipe is in communication with the inside of the socket joint.

[0014] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:

[0015] 1. The extrusion bolt moves towards the center of the engaging ring. Since one end of the extrusion bolt fits against the outer wall of the connecting pipe, the two sides of the engaging ring are driven to be stretched and separated, and then the engaging teeth at the top and bottom inside the engaging ring move towards the center, which can further maintain the engagement between the engaging teeth and the inside of the helical grooves and prevent disengagement. Also, due to the fit between the inner wall of the connecting pipe and the rubber ring, it can further prevent sliding and disengagement. When it is necessary to release the fixation, the extrusion bolt can be conveniently rotated in the reverse direction, and then the engaging ring on both sides of the extrusion bolt is pressed towards the center, driving the top and bottom of the engaging ring to move away from each other, and then the engaging teeth move in the reverse direction to release the engagement with the helical grooves, which is convenient for pulling the insertion pipe to disengage from the connection.

[0016] 2. The rotation of the threaded ring can drive the moving plate to move towards one side of the socket joint, and then the extrusion ring can be pushed through the moving plate, causing the rubber ring to be pushed towards one side of the adjusting ring, and it can also conveniently drive the adjusting ring to move. Then, both sides of the adjusting ring are pressed against the rubber ring. Since both sides of the adjusting ring incline towards the center, when the adjusting ring presses against the rubber ring, the rubber ring can be driven to expand and move outwards, thereby achieving a tight fit between the rubber ring and the inner wall of the connecting pipe, and then achieving sealing to avoid leakage. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments described in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0018] Figure 1 is a schematic diagram of the present utility model;

[0019] Figure 2 is a front view of the present utility model;

[0020] Figure 3 is a cross-sectional view of the internal structure of the snap ring of the present utility model;

[0021] Figure 4 is a schematic diagram of the external structure of the insertion tube of the present utility model;

[0022] Figure 5 is a schematic diagram of the connection structure of the socket joint of the present utility model.

[0023] Explanation of reference numerals:

[0024] 1, snap ring; 101, connecting strip; 102, extrusion bolt; 103, locking teeth; 2, insertion tube; 201, retaining ring; 3, socket joint; 301, connecting tube; 302, helical tooth groove; 4, fixing ring; 401, threaded ring; 402, moving plate; 5, adjusting ring; 501, rubber ring; 502, extrusion ring. Detailed implementation manners

[0025] To enable those skilled in the art to better understand the technical solutions of the present utility model, the following will further introduce the present utility model in detail in conjunction with the drawings.

[0026] The present utility model provides an automotive fuel pipe joint assembly buckle as Figures 1-5 shown, including a snap ring 1 and an insertion tube 2. The inside of the snap ring 1 is sleeved with the outer wall of one end of the insertion tube 2. One end of the socket joint 3 for connection is sleeved with the inside of the snap ring 1 through a connecting tube 301. A plurality of helical tooth grooves 302 are obliquely formed on the outer wall of the connecting tube 301. A fixing ring 4 is arranged on one side of the snap ring 1 away from the socket joint 3. An adjusting ring 5 is slidably sleeved on the outer wall of the insertion tube 2 corresponding to the snap ring 1. The snap ring 1 for clamping has an elliptical cross-section, and extrusion bolts 102 are threadedly connected to both sides inside the snap ring 1. A plurality of locking teeth 103 are arranged at the top and bottom inside the snap ring 1.

[0027] As Figure 2 , 5As shown, one side of the locking teeth 103 near the center of the snap ring 1 inclines towards the fixed ring 4. The locking teeth 103 are correspondingly clamped with the helical grooves 302 on the outer wall of the connecting pipe 301. One end of the extrusion bolt 102 penetrates through the inside of the snap ring 1 and fits against the outer wall of the connecting pipe 301. The connecting pipe 301 is sleeved around the outer wall of the rubber ring 501, and one side surface of the extrusion ring 502 fits and presses against the connecting pipe 301. Rotate the extrusion bolt 102, so that the extrusion bolt 102 moves towards the center of the snap ring 1. Since one end of the extrusion bolt 102 fits against the outer wall of the connecting pipe 301, the two sides of the snap ring 1 are driven to be stretched away from each other, and then the snap ring 1 is tightened, causing the locking teeth 103 at the top and bottom inside the snap ring 1 to move towards the center, which can further maintain the clamping of the locking teeth 103 inside the helical grooves 302 and prevent them from disengaging.

[0028] As Figure 3 、 4 As shown, both sides of the outer wall of the adjusting ring 5 for extrusion incline towards the insertion pipe 2. Rubber rings 501 are sleeved on both sides of the outer wall of the insertion pipe 2 near the adjusting ring 5. An extrusion ring 502 is arranged on one side of the adjusting ring 5 close to the fixed ring 4. The extrusion ring 502 fits and presses against the rubber ring 501 on one side of the adjusting ring 5. A retaining ring 201 is arranged around the outer wall of one end of the insertion pipe 2 close to the socket 3, and the retaining ring 201 fits and fixes with the rubber ring 501 on one side of the adjusting ring 5. The moving plate 402 pushes the extrusion ring 502, causing the rubber ring 501 to be pushed and move towards one side of the adjusting ring 5, and it can also drive the adjusting ring 5 to move conveniently through the extrusion of the rubber ring 501. Then, both sides of the adjusting ring 5 are pressed against the rubber ring 501. Since both sides of the adjusting ring 5 incline towards the center, when the adjusting ring 5 is pressed against the rubber ring 501, it can drive the rubber ring 501 to expand and move outwards, thereby achieving a tight fit between the rubber ring 501 and the inner wall of the connecting pipe 301, and thus achieving sealing and preventing leakage.

[0029] As Figure 2 、 4As shown, the fixing ring 4 for installation is fixedly connected to the outer wall of the insertion tube 2. A threaded ring 401 is rotatably connected to the side of the fixing ring 4 away from the clamping ring 1. On both sides of the fixing ring 4 corresponding to the position of the connecting bar 101, moving plates 402 are respectively arranged through holes. The inner part of the threaded ring 401 is threadedly connected to the outer wall of the moving plate 402. One side of the threaded ring 401 is rotatably connected to the side wall of the fixing ring 4 through a bearing. A surrounding thread is spirally arranged at the center of the inner part of the threaded ring 401, and a threaded groove corresponding to the threaded connection with the threaded ring 401 is formed on the side surface of the moving plate 402 close to the threaded ring 401. By rotating the threaded ring 401, since the moving plate 402 is threadedly connected to the threaded ring 401 and the moving plate 402 slides inside the fixing ring 4, rotating the threaded ring 401 can drive the moving plate 402 to move towards the side of the socket joint 3.

[0030] As Figure 1 , 2 shown, the insertion tube 2 is fixedly connected to the automobile fuel supply pipe, the socket joint 3 is fixedly connected to the fuel injection device of the automobile engine, and the inside of the insertion tube 2 is in communication with the inside of the socket joint 3.

[0031] During use, it is convenient to sleeved the corresponding insertion tube 2 with the connecting tube 301 at one end of the socket joint 3, so that the clamping ring 1 is sleeved on the outer wall of the connecting tube 301. The adjusting ring 5 and the rubber rings 501 on both sides of it are both located inside the connecting tube 301. The clamping ring 1 is clamped with the inclined tooth groove 302 on the outer wall of the connecting tube 301 through the clamping teeth 103 to achieve fixed clamping. At the same time, when further fixing is required, it is convenient to rotate the pressing bolt 102, so that the pressing bolt 102 moves towards the center of the clamping ring 1. Since one end of the pressing bolt 102 is in contact with the outer wall of the connecting tube 301, the two sides of the clamping ring 1 are driven to be stretched away, so that the clamping ring 1 is tightened, and the clamping teeth 103 at the top and bottom inside the clamping ring 1 move towards the center, which can further maintain the clamping of the clamping teeth 103 with the inside of the inclined tooth groove 302 and prevent disengagement. And because the inner wall of the connecting tube 301 is in contact with the rubber ring 501, it can also further prevent sliding and disengagement. When it is necessary to release the fixation, it is convenient to rotate the pressing bolt 102 in the reverse direction to release the pulling of the pressing bolt 102 on the clamping ring 1, and then squeeze the clamping ring 1 towards the center near both sides of the pressing bolt 102, driving the top and bottom of the clamping ring 1 to move away from each other, so that the clamping teeth 103 move in the reverse direction and release the clamping with the inclined tooth groove 302, which is convenient to pull the insertion tube 2 to disengage.

[0032] When in use, when the connection between the connecting pipe 301 and the rubber ring 501 becomes loose, it is convenient to rotate the threaded ring 401. Then, since the moving plate 402 is threadedly connected to the threaded ring 401 and the moving plate 402 slides inside the fixed ring 4, starting the rotation of the threaded ring 401 can drive the moving plate 402 to move towards the side of the socket 3. Thus, the extrusion ring 502 can be pushed by the moving plate 402, causing the rubber ring 501 to be pushed towards the adjusting ring 5. Moreover, the adjusting ring 5 can be conveniently driven to move by the extrusion of the rubber ring 501. As a result, both sides of the adjusting ring 5 are pressed against the rubber ring 501. Since both sides of the adjusting ring 5 are inclined towards the center, when the adjusting ring 5 is pressed against the rubber ring 501, the rubber ring 501 can be driven to expand and move outwards, achieving a tight fit between the rubber ring 501 and the inner wall of the connecting pipe 301, thereby realizing sealing and preventing leakage.

[0033] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. Automotive fuel pipe joint assembly buckle, including a snap ring (1) and an insertion tube (2), characterized in that: The interior of the snap ring (1) is sleeved with the outer wall of one end of the insertion tube (2). One end of the socket joint (3) for connection is sleeved with the interior of the snap ring (1) through a connecting pipe (301). A plurality of inclined tooth grooves (302) are obliquely formed on the outer wall of the connecting pipe (301). A fixing ring (4) is arranged on the side of the snap ring (1) away from the socket joint (3). An adjusting ring (5) is slidably sleeved on the outer wall of the insertion tube (2) corresponding to the snap ring (1). The cross-section of the snap ring (1) for snap connection is elliptical, and extrusion bolts (102) are threadedly connected to both sides inside the snap ring (1). A plurality of teeth (103) are arranged at the top and bottom inside the snap ring (1). The fixing ring (4) for installation is fixedly connected to the outer wall of the insertion tube (2). A threaded ring (401) is rotatably connected to the side of the fixing ring (4) away from the snap ring (1). Moving plates (402) are respectively arranged through both sides inside the fixing ring (4) corresponding to the position of the connecting bar (101). The interior of the threaded ring (401) is threadedly connected to the outer wall of the moving plate (402). Both sides of the outer wall of the adjusting ring (5) for extrusion are inclined towards the insertion tube (2). Rubber rings (501) are sleeved on both sides of the outer wall of the insertion tube (2) close to the adjusting ring (5). An extrusion ring (502) is arranged on the side of the adjusting ring (5) close to the fixing ring (4).

2. The automotive fuel pipe joint assembly buckle according to claim 1, characterized in that: One side of the tooth (103) close to the center of the snap ring (1) is inclined towards the fixing ring (4). The tooth (103) is correspondingly snap-connected to the inclined tooth groove (302) on the outer wall of the connecting pipe (301). One end of the extrusion bolt (102) penetrates through the interior of the snap ring (1) and fits against the outer wall of the connecting pipe (301).

3. The automotive fuel pipe joint assembly buckle according to claim 1, wherein: The extrusion ring (502) fits and squeezes against the rubber ring (501) on one side of the adjusting ring (5). A retaining ring (201) is arranged around the outer wall of one end of the insertion tube (2) close to the socket joint (3), and the retaining ring (201) is fixedly connected by fitting against the rubber ring (501) on one side of the adjusting ring (5).

4. The automotive fuel pipe joint assembly buckle according to claim 1, characterized in that: One side of the threaded ring (401) is rotatably connected to the side wall of the fixing ring (4) through a bearing. A surrounding thread is spirally arranged at the center inside the threaded ring (401), and a thread groove corresponding to the threaded connection with the threaded ring (401) is formed on the side surface of the moving plate (402) close to the threaded ring (401).

5. The automotive fuel pipe joint assembly buckle according to claim 1, wherein: The connecting pipe (301) is sleeved around the outer wall of the rubber ring (501), and one side surface of the extrusion ring (502) fits and squeezes against the connecting pipe (301).

6. The automotive fuel pipe joint assembly buckle according to claim 1, characterized in that: The insertion tube (2) is fixedly connected to the vehicle fuel supply pipe, the socket joint (3) is fixedly connected to the vehicle engine fuel injection device, and the interior of the insertion tube (2) is in communication with the interior of the socket joint (3).

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