Fuel tank assembly

Abstract

The utility model is suitable for the technical field of fuel tanks, and provides a fuel tank assembly which comprises a fuel tank, a connecting pipe for adding fuel is connected to the inner wall of the fuel tank, a sealing cover for sealing the connecting pipe is connected to a port of the connecting pipe, and a sealing mechanism is distributed in an inner cavity of the connecting pipe. The sealing mechanism is used for performing secondary sealing protection on the inner cavity of the connecting pipe; the sealing mechanism comprises a sealing unit and a resetting unit; the sealing unit is used for protecting an inner cavity of the connecting pipe, and an external hose is prevented from directly entering the oil tank. Through the structure that the sealing mechanism and the oil filling pipeline are distributed in a staggered mode, secondary protection is carried out on the oil filling port of the oil tank, safety of the oil tank is improved, an external hose cannot directly enter the bottom of an inner cavity of the oil tank through the oil filling port, fuel oil in the oil tank can not be stolen, interference cannot be caused to oil filling through an oil gun, and safety is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fuel tanks, and in particular relates to a fuel tank assembly. Background Art

[0002] A fuel tank is a container device for storing fuel, generally used in machines driven by gasoline or diesel engines.

[0003] The existing fuel tank installed on a large truck is generally placed on the side of the truck. Due to the large amount of oil stored, it is generally targeted by oil thieves. A hose is extended into the tank and the fuel in the tank is extracted by a siphon effect. The fuel tank has no structure to prevent oil theft and is generally guarded by the driver at night, which is time-consuming and laborious. Therefore, the utility model proposes a fuel tank assembly. Utility Model Content

[0004] The utility model provides a fuel tank assembly, aiming to solve the problems mentioned in the above background technology.

[0005] The utility model is implemented as follows: a fuel tank assembly comprises a fuel tank, the inner wall of the fuel tank is connected to a connecting pipe for adding fuel, the port of the connecting pipe is connected to a sealing cover for sealing the connecting pipe, and a sealing mechanism is distributed in the inner cavity of the connecting pipe, and the sealing mechanism is used for secondary sealing protection of the inner cavity of the connecting pipe;

[0006] The sealing mechanism comprises a sealing unit and a resetting unit;

[0007] The sealing unit is used to protect the inner cavity of the connecting pipe to prevent the external hose from directly entering the interior of the oil tank;

[0008] The resetting unit is used to provide a directional extrusion force for the sealing unit at all times.

[0009] Preferably, the sealing unit comprises a guide hole, a movable sleeve, and a force-bearing plate;

[0010] The guide hole is opened on the outer wall of the connecting pipe, and the guide hole is used to connect the connecting pipe and the inner cavity of the oil tank;

[0011] The movable sleeve is axially slidably installed in the inner cavity of the connecting pipe, and the movable sleeve is used to block the guide hole;

[0012] The force-bearing plate is fixed to the inner cavity at the top end of the movable sleeve, and the squeezed force-bearing plate is used to drive the movable sleeve to move axially.

[0013] Preferably, the resetting unit comprises a positioning ring, a positioning rod, and a spring;

[0014] The positioning ring is fixed in the inner cavity of the connecting pipe and is located below the movable sleeve, and the positioning ring is used to limit the moving distance of the movable sleeve;

[0015] The positioning rod is fixed to the bottom end of the movable sleeve, and the positioning rod is used to provide guidance for the movement of the movable sleeve;

[0016] The two ends of the spring are respectively clamped on the bottom end of the movable sleeve and the bottom end of the inner cavity of the connecting pipe, and the spring is used to provide a restoring elastic force for the axial movement of the movable sleeve.

[0017] Preferably, a groove matching the outer wall of the positioning rod is formed at the bottom end of the connecting pipe.

[0018] Preferably, the outer wall of the positioning rod is in a "T"-shaped structure as a whole.

[0019] Preferably, a connecting hole matching the guide hole is formed on the outer wall of the movable sleeve, and the connecting hole on the outer wall of the movable sleeve is vertically misaligned with the guide hole in an initial state.

[0020] Preferably, the outer wall of the load-bearing plate is in a cross-shaped structure as a whole.

[0021] Preferably, a circular hole groove is formed at the center of the force-bearing plate to provide a contact area for the entry of an external oil gun.

[0022] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0023] The utility model uses a sealing mechanism and a staggered distribution structure of the refueling pipe to provide secondary protection for the refueling port of the fuel tank, thereby increasing the safety of the fuel tank and preventing an external hose from directly entering the bottom of the inner cavity of the fuel tank through the refueling port to steal the fuel in the fuel tank. The utility model also does not interfere with refueling using a fuel gun, thereby increasing safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram provided by the utility model;

[0025] Figure 2 It is a cross-sectional view of the internal structure of the oil tank provided by the utility model;

[0026] Figure 3 It is a schematic diagram of the internal structure of the connecting pipe provided by the utility model.

[0027] In the figure: 1, oil tank; 2, connecting pipe; 3, sealing cover; 4, sealing mechanism; 401, guide hole; 402, movable sleeve; 403, force plate; 404, positioning ring; 405, positioning rod; 406, spring. DETAILED DESCRIPTION

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0029] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0030] The utility model embodiment provides a fuel tank assembly, such as Figure 1-3 As shown, it includes a fuel tank 1, the inner wall of the fuel tank 1 is connected to a connecting pipe 2 for adding fuel, the port of the connecting pipe 2 is connected to a sealing cover 3 for sealing the connecting pipe 2, and a sealing mechanism 4 is distributed in the inner cavity of the connecting pipe 2, and the sealing mechanism 4 is used for secondary sealing protection of the inner cavity of the connecting pipe 2;

[0031] The sealing mechanism 4 includes a sealing unit and a resetting unit;

[0032] The sealing unit is used to protect the inner cavity of the connecting pipe 2 to prevent the external hose from directly entering the interior of the oil tank 1;

[0033] The reset unit is used to provide a directional extrusion force for the sealing unit at all times;

[0034] The sealing unit includes a guide hole 401, a movable sleeve 402, and a force-bearing plate 403;

[0035] The guide hole 401 is formed on the outer wall of the connecting pipe 2, and the guide hole 401 is used to connect the connecting pipe 2 and the inner cavity of the oil tank 1;

[0036] The movable sleeve 402 is axially slidably installed in the inner cavity of the connecting pipe 2, and the movable sleeve 402 is used to block the guide hole 401;

[0037] The force-bearing plate 403 is fixed to the inner cavity at the top end of the movable sleeve 402, and the squeezed force-bearing plate 403 is used to drive the movable sleeve 402 to move axially;

[0038] The reset unit includes a positioning ring 404, a positioning rod 405, and a spring 406;

[0039] The positioning ring 404 is fixed in the inner cavity of the connecting pipe 2 and is located below the movable sleeve 402. The positioning ring 404 is used to limit the moving distance of the movable sleeve 402.

[0040] The positioning rod 405 is fixed to the bottom end of the movable sleeve 402, and the positioning rod 405 is used to provide a guide for the movement of the movable sleeve 402;

[0041] The two ends of the spring 406 are respectively clamped on the bottom end of the movable sleeve 402 and the bottom end of the inner cavity of the connecting pipe 2 . The spring 406 is used to provide a restoring elastic force for the axial movement of the movable sleeve 402 .

[0042] In this embodiment, when it is necessary to add fuel to the fuel tank 1, the fuel gun is pressed against the outer wall of the force plate 403, and the fuel gun gives a thrust to the force plate 403, so that the force plate 403 drives the movable sleeve 402 to move axially, and the axial movement of the movable sleeve 402 will synchronously drive the positioning rod 405 to move synchronously, and give the spring 406 an extrusion force until the bottom of the movable sleeve 402 contacts the outer wall of the positioning ring 404. At this time, the connecting hole of the outer wall of the movable sleeve 402 will also be connected to the outer wall of the guide hole 401. At this time, the fuel gun can be used to add fuel, and the fuel enters the interior of the fuel tank 1 through the multiple connecting holes of the movable sleeve 402 and the guide hole 401, without affecting the replenishment of fuel.

[0043] When the oil thief uses the hose to steal the oil, the hose can only enter the inner cavity of the movable sleeve 402. At this time, the movable sleeve 402 and the guide hole 401 are in a misaligned state, and the hose cannot pass through the guide hole 401, thereby achieving the purpose of protecting the oil tank 1.

[0044] In a further preferred embodiment of the present invention, Figure 1-3 As shown, a groove matching the outer wall of the positioning rod 405 is formed at the bottom end of the connecting pipe 2, and the outer wall of the positioning rod 405 is in a "T"-shaped structure as a whole.

[0045] In this embodiment, through this structure, when the force-bearing plate 403 is no longer squeezed from the outside, the force-bearing plate 403 and the movable sleeve 402 will be reset under the elastic force of the spring 406, and the bottom protrusion of the positioning rod 405 will also abut against the bottom outer wall of the connecting pipe 2, thereby limiting the moving distance of the movable sleeve 402.

[0046] In a further preferred embodiment of the present invention, Figure 1-3As shown, the outer wall of the movable sleeve 402 is formed with a connecting hole that matches the guide hole 401. In the initial state, the outer wall connecting hole of the movable sleeve 402 is vertically offset from the guide hole 401. The outer wall of the force-bearing plate 403 is a cross-shaped structure as a whole. A circular hole groove is formed in the center of the force-bearing plate 403 to provide a contact area for the entry of an external oil gun.

[0047] In this embodiment, this structure can drive the axial movement of the movable sleeve 402 under the action of the force-bearing plate 403. The cross-shaped force-bearing plate 403 can increase the contact area of ​​the oil gun without interfering with the entry of fuel, and the staggered connection holes and guide holes 401 will further protect the inner cavity of the fuel tank 1.

[0048] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0049] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0050] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0051] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A fuel tank assembly, comprising a fuel tank (1), wherein the inner wall of the fuel tank (1) is connected to a connecting pipe (2) for adding fuel, and the end of the connecting pipe (2) is connected to a sealing cap (3) for sealing the connecting pipe (2), characterized in that: A sealing mechanism (4) distributed in the inner cavity of the connecting pipe (2), the sealing mechanism (4) being used to perform secondary sealing protection on the inner cavity of the connecting pipe (2); The sealing mechanism (4) comprises a sealing unit and a resetting unit; The sealing unit is used to protect the inner cavity of the connecting pipe (2) to prevent the external hose from directly entering the interior of the oil tank (1); The resetting unit is used to provide a directional extrusion force for the sealing unit at all times.

2. A fuel tank assembly according to claim 1, characterized in that: The sealing unit comprises a guide hole (401), a movable sleeve (402), and a force-bearing plate (403); The guide hole (401) is formed on the outer wall of the connecting pipe (2), and the guide hole (401) is used to connect the connecting pipe (2) and the inner cavity of the oil tank (1); The movable sleeve (402) is axially slidably installed in the inner cavity of the connecting pipe (2), and the movable sleeve (402) is used to block the guide hole (401); The force-bearing plate (403) is fixed to the inner cavity at the top end of the movable sleeve (402), and the squeezed force-bearing plate (403) is used to drive the movable sleeve (402) to move axially.

3. A fuel tank assembly according to claim 1, characterized in that: The reset unit comprises a positioning ring (404), a positioning rod (405), and a spring (406); The positioning ring (404) is fixed in the inner cavity of the connecting pipe (2) and is located below the movable sleeve (402); the positioning ring (404) is used to limit the moving distance of the movable sleeve (402); The positioning rod (405) is fixed to the bottom end of the movable sleeve (402), and the positioning rod (405) is used to provide guidance for the movement of the movable sleeve (402); The two ends of the spring (406) are respectively clamped on the bottom end of the movable sleeve (402) and the bottom end of the inner cavity of the connecting tube (2), and the spring (406) is used to provide a restoring elastic force for the axial movement of the movable sleeve (402).

4. A fuel tank assembly according to claim 3, characterized in that: The bottom end of the connecting pipe (2) is formed with a groove matching the outer wall of the positioning rod (405).

5. A fuel tank assembly according to claim 3, characterized in that: The outer wall of the positioning rod (405) is in a "T"-shaped structure as a whole.

6. A fuel tank assembly according to claim 2, characterized in that: The outer wall of the movable sleeve (402) is formed with a connection hole matching the guide hole (401); in an initial state, the outer wall connection hole of the movable sleeve (402) and the guide hole (401) are vertically misaligned.

7. A fuel tank assembly according to claim 2, characterized in that: The outer wall of the load-bearing plate (403) is in a cross-shaped structure as a whole.

8. A fuel tank assembly according to claim 2, characterized in that: A circular hole is formed at the center of the force-bearing plate (403) to provide a contact area for the entry of an external oil gun.

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