High performance silicone fuel tube

Abstract

The utility model discloses a high -performance silica gel fuel pipe, including large diameter pipe and small pipe, the outer wall of large diameter pipe is provided with first flange joint, the one end of small pipe is integrated with the second flange joint of first flange joint's adaptation, limiting component is used for preventing the dislocation of first flange joint and second flange joint in the connecting process, prevent the component of falling off, for limiting the axial separation of first flange joint and second flange joint, the utility model limiting component guarantees first flange joint and second flange joint accurate butt joint, make sealing surface close fitting, effectively promote the sealing performance, prevent medium leakage, prevent the component of falling off and locking component cooperation, form double protection, significantly enhance the axial tension resistance and the anti -external force impact ability of large diameter pipe and small pipe connection, avoid accidental uncoupling, the locking of locking component to prevent the component of falling off, ensure that the whole connecting structure keeps stable under complex working condition.

Description

Technical Field

[0001] This utility model relates to the field of silicone tube technology, specifically a high-performance silicone fuel tube. Background Technology

[0002] During the operation of a car engine, the high negative pressure system plays a crucial role. Its performance directly affects the engine's power output, fuel economy, and emissions. As the core component for fluid transmission in the system, it must also meet the requirements of reliable sealing, temperature resistance, aging resistance, and compatibility with different pipe diameter interfaces.

[0003] In existing technologies, segmented variable diameter silicone hoses typically use a structure where a large-diameter pipe and a small-diameter pipe are connected by flanges. The two flanges are sealed with gaskets and secured with multiple sets of bolts. While this connection method ensures structural strength and sealing to a certain extent, it reveals significant drawbacks in practical applications. The bolt tightening process requires specialized tools for multi-point operation, and a single disassembly and assembly typically takes more than 15 minutes. This is especially challenging in the confined space of an engine compartment, severely impacting maintenance and assembly efficiency. Therefore, a high-performance silicone fuel hose needs to be designed to address these issues. Utility Model Content

[0004] The purpose of this invention is to provide a high-performance silicone fuel tube to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-performance silicone fuel pipe, comprising a large-diameter pipe and a small-diameter pipe, wherein a first flange joint is provided on the outer wall of the large-diameter pipe; and a second flange joint adapted to the first flange joint is integrated at one end of the small-diameter pipe.

[0006] A limiting component is used to prevent misalignment between the first flange joint and the second flange joint during the connection process;

[0007] An anti-detachment component is used to limit the axial separation of the first flange joint from the second flange joint;

[0008] A locking component is used to lock the position of the anti-detachment component to ensure the stability of the sealed connection between the first flange joint and the second flange joint.

[0009] Preferably, the limiting component includes a first through hole and a limiting rod. After the first flange joint and the second flange joint are mated, coaxial first through holes are respectively opened at corresponding positions. The limiting rod can be inserted into the first through hole to limit the relative displacement between the first flange joint and the second flange joint.

[0010] Preferably, the anti-detachment component includes a limiting ring, a limiting block, and a second through hole. The limiting ring is sleeved outside the mating area of ​​the first flange joint and the second flange joint. At least two sets of limiting blocks are respectively provided on both sides of the limiting ring. After the first flange joint and the second flange joint are mated, a second through hole adapted to the limiting block is opened at the corresponding position.

[0011] Preferably, after the limiting block is inserted into the second through hole, the limiting ring is rotated to make the limiting block misalign with the second through hole, so as to restrict the axial separation of the first flange joint and the second flange joint. The limiting ring can be locked in position by a locking component.

[0012] Preferably, the locking assembly includes a bracket, a spring, and a locking tongue. Two sets of the brackets are provided on the outer wall of the limiting ring, and two sets of springs are installed in the inner cavity of each set of brackets. One end of the spring is connected to the locking tongue.

[0013] Preferably, when the limiting ring rotates to a preset locking position, the spring drives the locking tongue to pass through the limiting ring and insert into the second through hole to restrict the rotation of the limiting ring.

[0014] Preferably, the bracket is connected to the limiting ring by welding.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The limiting component of this utility model ensures precise docking between the first flange joint and the second flange joint, making the sealing surface tightly fit, effectively improving the sealing performance, preventing media leakage, and the anti-detachment component and locking component work together to form double protection, significantly enhancing the resistance to axial tensile force and external impact of the connection between large-diameter pipe and small-diameter pipe, avoiding accidental separation. The locking component locks the anti-detachment component, ensuring that the entire connection structure remains stable under complex working conditions, extending the service life of the pipeline system, and reducing maintenance costs and safety hazards.

[0017] 2. This utility model, by inserting a limiting rod into the first through hole, can quickly and accurately position the first flange joint and the second flange joint, reducing the docking and adjustment time and improving installation efficiency. The limiting ring, limiting block, and second through hole cooperate to form a mechanical limit by rotational misalignment. Compared with the traditional structure, it can better resist the axial force in the pipeline system during operation, and the anti-loosening effect is significantly enhanced. The locking component locks the limiting ring, so that the entire connection structure remains stable during long-term use, reducing the risk of leakage caused by loose parts, improving the safety and service life of the pipeline system, and reducing the maintenance frequency.

[0018] 3. This utility model features a spring-driven locking tongue that automatically inserts into the second through hole without the need for additional tools. Locking is completed quickly once the limiting ring is in place, simplifying the operation process and improving installation efficiency. After the locking tongue is inserted into the second through hole, it effectively prevents the limiting ring from rotating, thus avoiding the limit block from resetting to the second through hole due to accidental rotation of the limiting ring. This enhances the stability and reliability of the connection structure against detachment. The bracket is welded to the limiting ring, ensuring a stable structure. Attached Figure Description

[0019] Figure 1 This is a schematic diagram showing the overall structure of the present invention.

[0020] Figure 2 This utility model Figure 1 Enlarged view of point A;

[0021] Figure 3 This is an exploded view of the overall structure of this utility model;

[0022] Figure 4 This utility model Figure 3 Enlarged view of point B;

[0023] Figure 5 This is a schematic diagram of the overall structure of this utility model.

[0024] In the diagram: 1. Large diameter pipe; 2. First flange joint; 3. Small diameter pipe; 4. Second flange joint; 5. First through hole; 6. Limiting rod; 7. Limiting ring; 8. Limiting block; 9. Second through hole; 10. Bracket; 11. Spring; 12. Locking tongue. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1

[0027] Please refer to Figure 1-5 As shown, this utility model provides a high-performance silicone fuel pipe, including a large-diameter pipe 1 and a small-diameter pipe 3. The outer wall of the large-diameter pipe 1 is provided with a first flange joint 2; one end of the small-diameter pipe 3 is integrated with a second flange joint 4 that is compatible with the first flange joint 2.

[0028] A limiting component is used to prevent misalignment between the first flange joint 2 and the second flange joint 4 during the connection process;

[0029] Anti-detachment component, used to limit axial separation between the first flange joint 2 and the second flange joint 4;

[0030] A locking component is used to lock the position of the anti-detachment component to ensure the stability of the sealed connection between the first flange joint 2 and the second flange joint 4.

[0031] When the first flange joint 2 and the second flange joint 4 are connected, the limiting component plays a role. Through a specific positioning structure, it ensures that the two flange joints are accurately aligned during the docking process, avoiding sealing failure or unstable connection due to misalignment. After the first flange joint 2 and the second flange joint 4 are initially docked, the anti-detachment component restricts the relative movement of the two along the axial direction to prevent the joint from axially separating. The locking component fixes the position of the anti-detachment component. After the anti-detachment component restricts the axial movement of the flange joint, the locking component locks its position to ensure that the anti-detachment component continues to play a role and ensures the long-term stability of the sealed connection between the first flange joint 2 and the second flange joint 4.

[0032] The limiting component ensures precise alignment between the first flange joint 2 and the second flange joint 4, resulting in a tight seal between the sealing surfaces. This effectively improves sealing performance and prevents media leakage. The anti-detachment component 2 works in conjunction with the locking component 3 to form double protection, significantly enhancing the axial tensile strength and external impact resistance of the connection between the large-diameter pipe 1 and the small-diameter pipe 3, preventing accidental detachment. The locking component 3 locks the anti-detachment component 2, ensuring the stability of the entire connection structure under complex working conditions, extending the service life of the pipeline system, and reducing maintenance costs and safety hazards.

[0033] Specifically, the limiting component includes a first through hole 5 and a limiting rod 6. After the first flange joint 2 and the second flange joint 4 are mated, coaxial first through holes 5 are respectively opened at corresponding positions. The limiting rod 6 can be inserted into the first through hole 5 to limit the relative displacement of the first flange joint 2 and the second flange joint 4. The anti-detachment component includes a limiting ring 7, a limiting block 8, and a second through hole 9. The limiting ring 7 is sleeved on the outside of the mating point of the first flange joint 2 and the second flange joint 4. At least two sets of limiting blocks 8 are respectively provided on both sides of the limiting ring 7. After the first flange joint 2 and the second flange joint 4 are mated, second through holes 9 adapted to the limiting blocks 8 are respectively opened at corresponding positions. When the limiting block 8 is inserted into the second through hole 9, the limiting ring 7 is rotated to make the limiting block 8 and the second through hole 9 misaligned to limit the axial separation of the first flange joint 2 and the second flange joint 4. The limiting ring 7 can be locked in position by a locking component.

[0034] When the first flange joint 2 and the second flange joint 4 are mated, the first through holes 5 at corresponding positions are coaxially aligned. The limiting rod 6 is inserted into the first through hole 5 to limit the relative displacement of the two flange joints in the circumferential and radial directions, ensuring accurate mating position. The limiting ring 7 is fitted outside the mating point of the first flange joint 2 and the second flange joint 4. The limiting blocks 8 on both sides are aligned with the second through holes 9 and inserted. After insertion, the limiting ring 7 is rotated to make the limiting blocks 8 and the second through holes 9 misaligned, thereby preventing the first flange joint 2 and the second flange joint 4 from separating axially and achieving axial limiting. After the limiting ring 7 rotates to make the limiting blocks 8 complete the anti-detachment operation, the locking component locks the position of the limiting ring 7 to prevent the limiting ring 7 from rotating accidentally and to ensure a stable and long-lasting anti-detachment effect.

[0035] By inserting the limiting rod 6 into the first through hole 5, the positioning of the first flange joint 2 and the second flange joint 4 can be completed quickly and accurately, reducing the docking and adjustment time and improving installation efficiency. The limiting ring 7 cooperates with the limiting block 8 and the second through hole 9 to form a mechanical limit by means of rotational misalignment. Compared with the traditional structure, it can better resist the axial force in the pipeline system operation, and the anti-loosening effect is significantly enhanced. The locking component locks the limiting ring 7, so that the entire connection structure remains stable in long-term use, reducing the risk of leakage caused by loose parts, improving the safety and service life of the pipeline system, and reducing the maintenance frequency.

[0036] The locking assembly includes a bracket 10, a spring 11, and a locking tongue 12. Two sets of brackets 10 are provided on the outer wall of the limiting ring 7. Two sets of springs 11 are installed in the inner cavity of each set of brackets 10. One end of the spring 11 is connected to the locking tongue 12. When the limiting ring 7 rotates to the preset locking position, the spring 11 drives the locking tongue 12 to pass through the limiting ring 7 and insert into the second through hole 9 to limit the rotation of the limiting ring 7. The bracket 10 is connected to the limiting ring 7 by welding.

[0037] The bracket 10 is welded to the outer wall of the limiting ring 7. One end of the spring 11 is connected to the locking tongue 12. When the limiting ring 7 is not rotated to the locked position, the locking tongue 12 is in a retracted state under the action of the spring 11. When the limiting ring 7 rotates, the limiting block 8 and the second through hole 9 are misaligned to complete the anti-disengagement. Then the limiting ring 7 reaches the preset locking position. At this time, the spring 11 drives the locking tongue 12 to pass through the limiting ring 7 and insert into the second through hole 9. By using the cooperation between the locking tongue 12 and the second through hole 9, the rotation of the limiting ring 7 is restricted, thereby fixing the position of the limiting ring 7 and ensuring the stable operation of the anti-disengagement component.

[0038] Spring 11 drives the locking tongue 12 to automatically insert into the second through hole 9 without the need for additional tools. Locking can be completed quickly after the limiting ring 7 is in place, simplifying the operation process and improving installation efficiency. After the locking tongue 12 is inserted into the second through hole 9, it can effectively prevent the limiting ring 7 from rotating, avoiding the limit block 8 from resetting with the second through hole 9 due to accidental rotation of the limiting ring 7. This enhances the stability and reliability of the connection structure in preventing detachment. The bracket 10 is welded to the limiting ring 7, making the structure stable.

[0039] Working principle: When the first flange joint 2 and the second flange joint 4 are mated, the first through holes 5 at corresponding positions are coaxially aligned. The limiting rod 6 is inserted into the first through hole 5 to limit the relative displacement of the two flange joints in the circumferential and radial directions, ensuring accurate mating position. The limiting ring 7 is fitted outside the mating point of the first flange joint 2 and the second flange joint 4. The limiting blocks 8 on both sides are aligned with the second through holes 9 and inserted. After insertion, the limiting ring 7 is rotated to make the limiting blocks 8 and the second through holes 9 misaligned, thereby preventing the first flange joint 2 and the second flange joint 4 from separating axially, achieving axial limiting. The limiting ring 7 is rotated to achieve the limiting position. After block 8 completes the anti-detachment operation, the locking component locks the position of the limiting ring 7 to prevent the limiting ring 7 from rotating accidentally, ensuring a stable and lasting anti-detachment effect. When the limiting ring 7 has not rotated to the locked position, the locking tongue 12 is in a retracted state under the action of the spring 11. When the limiting ring 7 rotates, causing the limiting block 8 and the second through hole 9 to form a misalignment to complete the anti-detachment, the limiting ring 7 reaches the preset locking position. At this time, the spring 11 drives the locking tongue 12 to pass through the limiting ring 7 and insert into the second through hole 9. By using the cooperation between the locking tongue 12 and the second through hole 9, the rotation of the limiting ring 7 is restricted, thereby fixing the position of the limiting ring 7 and ensuring the stable operation of the anti-detachment component.

[0040] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-performance silicone fuel pipe, comprising a large-diameter pipe (1) and a small-diameter pipe (3), wherein the outer wall of the large-diameter pipe (1) is provided with a first flange joint (2); and one end of the small-diameter pipe (3) is integrated with a second flange joint (4) adapted to the first flange joint (2). Its features are: A limiting component is provided to prevent misalignment between the first flange joint (2) and the second flange joint (4) during the connection process; Anti-detachment component, used to limit the axial separation of the first flange joint (2) from the second flange joint (4); A locking component is used to lock the position of the anti-detachment component to ensure the stability of the sealed connection between the first flange joint (2) and the second flange joint (4).

2. The high-performance silicone fuel tube according to claim 1, characterized in that: The limiting component includes a first through hole (5) and a limiting rod (6). After the first flange joint (2) and the second flange joint (4) are connected, coaxial first through holes (5) are respectively opened at corresponding positions. The limiting rod (6) can be inserted into the first through hole (5) to limit the relative displacement between the first flange joint (2) and the second flange joint (4).

3. The high-performance silicone fuel tube according to claim 1, characterized in that: The anti-detachment component includes a limiting ring (7), a limiting block (8), and a second through hole (9). The limiting ring (7) is sleeved on the outside of the mating point of the first flange joint (2) and the second flange joint (4). At least two sets of limiting blocks (8) are respectively provided on both sides of the limiting ring (7). After the first flange joint (2) and the second flange joint (4) are mated, a second through hole (9) adapted to the limiting block (8) is opened at the corresponding position.

4. The high-performance silicone fuel tube according to claim 3, characterized in that: When the limiting block (8) is inserted into the second through hole (9), the limiting ring (7) is rotated to make the limiting block (8) and the second through hole (9) misaligned, so as to restrict the axial separation of the first flange joint (2) and the second flange joint (4). The limiting ring (7) can be locked in position by the locking component.

5. A high-performance silicone fuel tube according to claim 4, characterized in that: The locking assembly includes a bracket (10), a spring (11) and a locking tongue (12). Two sets of the brackets (10) are provided on the outer wall of the limiting ring (7). Two sets of springs (11) are installed in the inner cavity of each set of brackets (10). One end of the spring (11) is connected to the locking tongue (12).

6. A high-performance silicone fuel tube according to claim 5, characterized in that: When the limiting ring (7) rotates to the preset locking position, the spring (11) drives the locking tongue (12) to pass through the limiting ring (7) and insert into the second through hole (9) to restrict the rotation of the limiting ring (7).

7. A high-performance silicone fuel tube according to claim 5, characterized in that: The bracket (10) is connected to the limiting ring (7) by welding.

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