CN216275921U - Fuel tank of mini excavator - Google Patents

Abstract

The utility model relates to the field of engineering machinery, in particular to a fuel tank of a small excavator, which comprises a tank body, wherein the tank body comprises a cover plate, the cover plate comprises three closed surfaces for closing the front side surface, the rear side surface and the top surface of the tank body, the three closed surfaces of the cover plate are integrally formed by bending, the left open surface and the right open surface of the cover plate are fixedly connected with side plates, the open surface at the bottom of the cover plate is fixedly connected with a bottom plate, the cover plate, the two side plates and the bottom plate jointly enclose the tank body which is closed inside and outside, and one of the front closed surface and the rear closed surface of the cover plate is an outward appearance surface. The front end face, the rear end face and the top face of each side plate are welded on the inner side face, facing the inside of the box body, of each cover plate, and the four end faces of each bottom plate are welded on the inner side faces, facing the inside of the box body, of each side plate or each cover plate. The outer edge of the cover plate extends outwards from the side part of the side plate, and the fuel tank structure of the mini excavator fuel tank is changed, so that the strength of the fuel tank is improved, the stress of a welding seam is reduced, and the service life of the fuel tank is prolonged.

Description

Fuel tank of mini excavator

Technical Field

The utility model relates to the field of engineering machinery, in particular to a fuel tank of a small excavator.

Background

The modern society leaps and bounds, and the excavator is more and more widely used; the sales volume is also increased year by year, wherein the mini excavator is the sales force of the domestic excavator market, but the sales price of the mini excavator is reduced year by year, the international iron price is increased in a large range, so that the small excavation of all excavator main factories is a loss management, various cost reduction plans are proposed and executed, and the appearance of the mini excavator is increasingly poor.

The technical scheme in the prior art is as follows: the front surface of the fuel tank is used as an appearance surface, so that welding seams of the fuel tank are exposed, and a side door and a fuel tank mounting bracket are exposed.

The prior art has the following disadvantages: 1. the fuel tank is used as an appearance surface, and welding seams and a connection mode are exposed, so that the attractiveness of the whole machine is influenced; 2. the stress at the welding seam of the fuel tank is high, so that the fuel tank becomes a damaged point of the fuel tank and the service life is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and provide a fuel tank of a mini excavator, which has a neat appearance and can reduce stress at a welding seam of the fuel tank.

In order to achieve the aim, the utility model discloses a fuel tank of a mini excavator, which comprises a tank body and is structurally characterized in that: the box includes the apron, and the apron is including the three closed surface of two preceding, back sides of closed box and top surface, and the three closed surface of apron is through bending integrated into one piece, two open face fixedly connected with curb plates about the apron, fixedly connected with bottom plate on the open face of bottom of apron, and the apron encloses into interior outer confined box jointly with two curb plates and bottom plate, and one of them closed surface is towards outside outward appearance face before the apron, back.

After the structure is adopted, one face of the cover plate is used as an appearance face, the two side plates are used for sealing the opening faces on the two sides of the cover plate, the bottom opening of the cover plate is sealed by the bottom plate, the cover plate comprises a front side face, a rear side face and a top face, the strength of the fuel tank is guaranteed by bending and forming at one time, the structure of the fuel tank is changed, the stress is reduced, and the service life of the fuel tank is prolonged.

Preferably, the top of box is equipped with the filler and is used for installing level sensor's liquid level detection mouth, and level sensor passes the liquid level detection mouth and stretches into in the box. The height of oil in the fuel tank can be detected through the liquid level sensor.

Preferably, the harness portion and the tank cover of the level sensor are mounted on the outer surface of the cover plate.

Preferably, the upper portion of one of the side plates is provided with a bend inclined toward the box body. After the structure is adopted, the bending at the position is utilized to increase the strength of the fuel tank and reduce the stress of a welding seam, and the stress of the highest stress point is changed from 107 to 95, so that the service life of the fuel tank is prolonged.

Preferably, the bottom plate is provided with cleaning holes. The switch valve is arranged on the cleaning hole, and when dirt in the fuel tank needs to be cleaned, the switch valve is opened to discharge the dirt in the fuel tank, so that the fuel tank is convenient to clean.

Preferably, the lower side of the bottom plate is provided with two mounting seats, through holes for matching bolts are formed in the mounting seats, and the two mounting seats are respectively located on two sides of the cleaning hole.

Preferably, the front and rear end faces and the top face of the side plate are welded to the inner side face of the cover plate facing the inside of the box body, and the four end faces of the bottom plate are welded to the inner side face of the side plate or the cover plate facing the inside of the box body. After adopting above-mentioned structure, can play the effect of beautifying the complete machine outward appearance, can't see welding seam and installing support from the oil tank front side, increase whole outward appearance degree.

Preferably, the outer edge of the cover plate extends outward from the side portion of the side plate, and the cover plate extends outward by a distance of 7 mm. The bracket for fixing the side door on the fuel tank can be reduced, the gap between the extending part and the side door can be reasonably and effectively controlled, and the gap between the side door and the fuel tank can be shielded.

In conclusion, the beneficial effects of the utility model are as follows: one surface of the cover plate is used as an appearance surface, the two side plates are used for sealing the opening surfaces on the two sides of the cover plate, and the structure of the fuel tank is changed, so that the strength of the fuel tank is improved, the stress is reduced, and the service life of the fuel tank is prolonged. The upper part of one side plate is provided with a bend inclining towards the box body. The bending at the position is utilized to increase the strength of the fuel tank and reduce the stress of a welding seam, thereby prolonging the service life of the fuel tank. Welding seams and mounting brackets cannot be seen from the front side of the oil tank, and the overall appearance degree is increased.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic side view of the case;

FIG. 3 is a schematic top view of the case;

FIG. 4 is a rear view of the box;

fig. 5 is a schematic bottom view of the box.

In the figure: the device comprises a box body 1, a cover plate 2, a side plate 3, a mounting seat 4, a cleaning hole 5, a bottom plate 6, a filling port 7 and a liquid level detection port 8.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The following is a description of preferred embodiments of the present invention with reference to the accompanying drawings.

The utility model provides a small-size excavator fuel tank, the power distribution box comprises a box body 1, box 1 is including apron 2, apron 2 is before sealing box 1, the three confining surface of two back sides and top surface, apron 2's three confining surface is through bending integrated into one piece, two left and right uncovered face fixedly connected with curb plates 3 of apron 2, fixedly connected with bottom plate 6 on the uncovered face of the bottom of apron 2, apron 2 encloses into inside and outside confined box 1 with two curb plates 3 and bottom plate 6 jointly, apron 2 is preceding, one of them confining surface is towards outside outward appearance face in back.

Referring to the attached drawing 1, after the structure is adopted, one surface of the cover plate 2 is used as an appearance surface, the two side plates 3 are used for sealing the open surfaces at the two sides of the cover plate 2, the bottom opening of the cover plate 2 is sealed by the bottom plate 6, and the structure of the fuel tank is changed, so that the strength of the fuel tank is improved, the stress is reduced, and the service life of the fuel tank is prolonged.

Referring to fig. 1, the front and rear side surfaces and the top surface of the cover plate 2 are integrally formed by bending. The cover plate 2 comprises a front side surface, a rear side surface and a top surface, and the strength of the oil tank is ensured by bending and forming at one time. Referring to the attached drawings 1 and 3, a filling port 7 and a liquid level detection port 8 for installing a liquid level sensor are arranged at the top of the box body 1, and the liquid level sensor penetrates through the liquid level detection port 8 and extends into the box body 1. The height of oil in the fuel tank can be detected through the liquid level sensor. The harness portion and the tank cover of the level sensor are mounted on the outer surface of the cover plate 2. The tank cover essentially comprises the equipment with which the fuel is to be supplied, such as a fill level sensor.

Referring to fig. 1, one of the side plates 3 is provided at an upper portion thereof with a bend inclined toward the case 1. After the structure is adopted, the bending at the position is utilized to increase the strength of the fuel tank and reduce the stress of a welding seam, and the stress of the highest stress point is changed from 107 to 95, so that the service life of the fuel tank is prolonged.

Referring to fig. 5, the bottom plate 6 is provided with a cleaning hole 5. The cleaning hole 5 is provided with a switch valve, and when dirt in the fuel tank needs to be cleaned, the switch valve is opened to discharge the dirt in the fuel tank, so that the fuel tank is convenient to clean.

Referring to fig. 5, the lower side of the bottom plate 6 is provided with two mounting seats 4, through holes for matching bolts are formed in the mounting seats 4, and the two mounting seats 4 are respectively located on two sides of the cleaning hole 5.

Referring to fig. 1 and 2, the front and rear end faces and the top face of the side plate 3 are welded to the inner side face of the cover plate 2 facing the inside of the case 1, and the four end faces of the bottom plate 6 are welded to the inner side face of the side plate 3 or the cover plate 2 facing the inside of the case 1. After adopting above-mentioned structure, can play the effect of beautifying the complete machine outward appearance, can't see welding seam and installing support from the oil tank front side, increase whole outward appearance degree. The outer edge of the cover plate 2 extends outward from the side of the side plate 3, and the cover plate 2 extends outward by a distance of 7 mm. The bracket for fixing the side door on the fuel tank can be reduced, the gap between the extending part and the side door can be reasonably and effectively controlled, and the gap between the side door and the fuel tank can be shielded.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims (8)

1. The utility model provides a small-size excavator fuel tank, includes box (1), its characterized in that, box (1) is including apron (2), apron (2) are including the three confining surface of closed box (1) preceding, two back sides and top surface, the three confining surface of apron (2) is through bending integrated into one piece, two open face fixedly connected with curb plates (3) about apron (2), fixedly connected with bottom plate (6) on the open face of bottom of apron (2), apron (2) enclose into inside and outside confined box (1) with two curb plates (3) and bottom plate (6) jointly, apron (2) preceding, one of them confining surface is towards outside outward appearance face in back.

2. Fuel tank for mini-excavators, according to claim 1, characterized in that the top of the tank (1) is provided with a filling opening (7) and a level detection opening (8) for mounting a level sensor, which extends into the tank (1) through the level detection opening (8).

3. A fuel tank for a mini-excavator according to claim 2, wherein the harness portion of the liquid level sensor and the tank cover are mounted on the outer surface of the lid plate (2).

4. Fuel tank for mini-excavators, according to claim 1, characterized in that the upper part of one of the side plates (3) is provided with a bend inclined towards the tank (1).

5. Fuel tank for mini-excavators, according to claim 1, characterized in that the bottom plate (6) is provided with cleaning holes (5).

6. Fuel tank for miniexcavators according to claim 5, characterized in that the underside of the bottom plate (6) is provided with a mounting seat (4), the mounting seat (4) is provided with a through hole for fitting a bolt, the mounting seats (4) are provided in two, and the two mounting seats (4) are respectively located on both sides of the cleaning hole (5).

7. Fuel tank for mini-excavators according to one of claims 1 to 6, characterized in that the front and rear end faces and the top face of the side plate (3) are welded to the inner side of the cover plate (2) facing the inside of the tank (1), and the four end faces of the bottom plate (6) are welded to the inner side of the side plate (3) or the cover plate (2) facing the inside of the tank (1).

8. Fuel tank for mini-excavators according to claim 7, characterized in that the outer edge of the cover (2) projects outwards from the side of the side plate (3) and the distance by which the cover (2) projects outwards is 7 mm.

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