Anti-loosening fuel supply system
By using a limiting plate to secure the fuel pipe in the fuel supply system, the problem of the fuel pipe becoming loose under engine vibration was solved, ensuring the normal operation of the engine.
Patent Information
- Application Number
- CN202423071088.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-12
AI Technical Summary
The existing fuel supply system is prone to loosening under engine vibration, which affects engine performance.
The fuel pipe is fixed by a limiting plate, which is connected to the fuel pipe through a limiting slot and a limiting hole to enhance the fixing force to counteract the vibration force and prevent loosening.
It effectively prevents the fuel line from becoming loose under vibration, ensuring normal engine operation.
Smart Images

Figure CN223622500U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fuel supply equipment technology, and in particular to an anti-loosening fuel supply system. Background Technology
[0002] Existing fuel supply systems have a problem where fuel lines can become loose due to vibration, affecting engine performance. For example... Figure 1 The existing conventional fuel supply system includes a body 1' and a fuel pipe 2'. During engine operation, due to the large vibration of the engine, the vertical vibration force generated by the vibration of the external rubber hose 4' acts on the fuel pipe 2', causing the fuel pipe 2' to be in a state of vertical tension. When the vertical vibration force is greater than the fastening force of the rivet between the fuel pipe 2' and the body 1', the fuel pipe 2 will be rotated and loosened by the vibration force, thereby affecting the engine's operating performance. Utility Model Content
[0003] To address the shortcomings of the existing technology, this utility model provides an anti-loosening fuel supply system, comprising: a main body, and a fuel pipe press-fitted onto the main body, wherein the fuel pipe is fixed onto the main body by a limiting device.
[0004] In some embodiments, the limiting device is a limiting plate.
[0005] In some embodiments, the limiting plate includes a limiting slot that locks the fuel pipe in place.
[0006] In some embodiments, the fuel pipe includes a limiting groove, and the limiting slot engages with the limiting groove of the fuel pipe.
[0007] In some embodiments, the fuel line includes a first fuel line and a second fuel line that are connected and perpendicular to each other.
[0008] In some embodiments, the limiting groove is located on the side of the second fuel fitting.
[0009] In some embodiments, the first fuel fitting is externally connected to a rubber tube, and the second fuel fitting passes through the limiting groove of the limiting plate and is fixed to the body.
[0010] In some embodiments, the limiting plate further includes a limiting hole, through which the limiting plate is fixed to the body using screws or plugs.
[0011] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:
[0012] The anti-loosening fuel supply system provided by this utility model adds a limiting plate, which restricts the position of the fuel pipe to its original position. The vibration force of the engine needs to counteract the fastening force of the fuel pipe itself and the fastening force of the limiting plate. Under the dual action, it is ensured that the fuel pipe is not affected by the vibration force and thus ensures the normal operation of the engine. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 For existing conventional fuel supply systems;
[0015] Figure 2 This is a schematic diagram of the anti-loosening fuel supply system structure shown in an embodiment of the present invention;
[0016] Figure 3 This is a schematic diagram of the main body structure shown in an embodiment of the present utility model;
[0017] Figure 4 This is a schematic diagram of the fuel pipe structure shown in an embodiment of the present invention;
[0018] Figure 5 This is a schematic diagram of the limiting plate structure shown in an embodiment of the present utility model;
[0019] Figure 6 This is a schematic diagram of the limiting screw or plug structure shown in the embodiment of this utility model;
[0020] in:
[0021] 1,1'-ontology;
[0022] 2,2'-Fuel pipe;
[0023] 21-Limiting flat groove;
[0024] 22-First fuel fitting;
[0025] 23-Second fuel fitting;
[0026] 3-Limit plate;
[0027] 31-Limiting slot;
[0028] 32-Limiting hole;
[0029] 4,4'-Rubber tubing;
[0030] 5 - Screws or plugs. Detailed Implementation
[0031] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments to further understand the purpose, solution and effect of this utility model, but it is not intended to limit the scope of protection of the appended claims of this utility model.
[0032] Certain terms are used in this specification and the following claims to refer to specific components or parts. Those skilled in the art will understand that users or manufacturers may use different names or terms to refer to the same component or part. This specification and the following claims do not distinguish components or parts by differences in name, but rather by differences in function. The terms "comprising" and "including" used throughout this specification and the following claims are open-ended and should be interpreted as "including but not limited to". Furthermore, the term "connection" here includes any direct and indirect electrical connection means. Indirect electrical connection means include connections made through other means.
[0033] It should be noted that in the description of this utility model, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", as well as "about", "approximately", "substantially", "left and right", etc., indicating the orientation or positional relationship or parameters, are all based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, a specific size, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0034] See Figure 2-6 This utility model provides an anti-loosening fuel supply system, including: a body 1, and a fuel pipe 2 press-fitted onto the body 1. The fuel pipe 2 is fixed to the body 1 by a limiting device; specifically, the limiting device is a limiting plate 3, which includes a limiting groove 31, and the limiting groove 31 locks the fuel pipe 2 for fixation. The fuel pipe 2 includes a limiting flat groove 21, and the limiting groove 31 locks onto the limiting flat groove 21 of the fuel pipe 2.
[0035] The fuel pipe 2 includes a first fuel pipe fitting 22 and a second fuel pipe fitting 23 that are connected to each other. The first fuel pipe fitting 22 and the second fuel pipe fitting 23 are perpendicular to each other. The limiting flat groove 21 is provided on the side of the second fuel pipe fitting 23. The first fuel pipe fitting 22 is externally connected to a rubber tube 4, and the second fuel pipe fitting 23 passes through the limiting slot 31 of the limiting plate 3 and is fixed to the body 1. The limiting plate 3 also includes a limiting hole 32, through which screws or plugs 5 are used to fix the limiting plate 3 to the body 1.
[0036] In summary, the anti-loosening fuel supply system provided in this embodiment adds a limiting plate, which restricts the fuel pipe to its original position. The vibration force of the engine needs to counteract the fastening force of the fuel pipe itself and the fastening force of the limiting plate. Under the dual action, it is ensured that the fuel pipe is not affected by the vibration force and thus does not loosen or fall off, ensuring the normal operation of the engine.
[0037] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A fuel supply system for preventing loosening, characterized in that: include: The body, and the fuel pipe press-fitted onto the body, wherein the fuel pipe is fixed onto the body by a limiting device; The limiting device is a limiting plate; The limiting plate includes a limiting slot, which locks the fuel pipe in place.
2. The anti-loosening fuel supply system according to claim 1, characterized in that: The fuel pipe includes a limiting flat groove, and the limiting slot is engaged with the limiting flat groove of the fuel pipe.
3. The anti-loosening fuel supply system according to claim 2, characterized in that: The fuel pipe includes a first fuel fitting and a second fuel fitting that are connected to each other, and the first fuel fitting and the second fuel fitting are perpendicular to each other.
4. The anti-loosening fuel supply system according to claim 3, characterized in that: The limiting groove is located on the side of the second fuel pipe.
5. The anti-loosening fuel supply system according to claim 3, characterized in that: The first fuel fitting is connected to an external rubber tube, and the second fuel fitting passes through the limiting groove of the limiting plate and is fixed to the body.
6. The anti-loosening fuel supply system according to claim 1, characterized in that: The limiting plate also includes a limiting hole, through which the limiting plate is fixed to the body by screws or plugs.