An oil tank cover structure of a generator set and an installation structure thereof

Abstract

This utility model discloses a fuel tank cover structure and its installation structure for a generator set. It includes a fuel tank cover body, with two parallel upper and lower mounting plates formed on both sides of the top plate of the cover body, extending along the outline of the top plate. A mounting groove is formed between the upper and lower mounting plates. An overflow groove is provided on the top plate, with one side of the overflow groove penetrating one side of the top plate to form an overflow outlet. On the upper mounting plate near the overflow outlet, a boss is formed at the position corresponding to the overflow outlet. The top of the boss is flush with the bottom of the overflow groove, forming an extension at the overflow outlet, and the boss forms a positioning groove for the corresponding mounting groove. This utility model has a simple structure, is integrally formed, easy to process, and convenient and quick to assemble. After installation, the resulting structure has better integrity and sealing, effectively preventing overflowing fuel from entering the interior of the generator set housing.

Description

Technical Field

[0001] This utility model relates to the field of fuel tank cover technology for generator sets, and in particular to a fuel tank cover structure for generator sets and its installation structure. Background Technology

[0002] Generator sets are generally driven by an internal combustion engine (gasoline or diesel engine), which transfers mechanical energy to the generator, which then converts it into electrical energy for use by electrical equipment. Generator sets are typically equipped with a fuel tank. During refueling, fuel can easily overflow or leak, causing pollution. Therefore, an overflow trough is usually installed at the fuel filler neck to guide the overflowing fuel and drain it promptly. However, currently, overflow troughs are generally molded onto the fuel tank or installed separately on the tank cover, affecting the overall structure and manufacturing complexity of the tank. Separately installed overflow troughs are usually attached to the tank cover using a snap-fit ​​method, which can easily loosen under prolonged vibration and complicates the manufacturing structure of the tank cover, resulting in low assembly efficiency. Utility Model Content

[0003] In view of the above-mentioned shortcomings of the existing technology, the purpose of this utility model is to provide a fuel tank cover structure and its installation structure for a generator set, so as to solve the problems of complex structure and low assembly efficiency of the existing technology.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A fuel tank cover structure for a generator set includes a fuel tank cover body. Two parallel upper and lower mounting plates extending along the outline of the top plate are formed on both sides of the top plate of the fuel tank cover body. A mounting groove is formed between the upper and lower mounting plates, with the openings of the mounting grooves facing opposite directions. An overflow groove is provided on the top plate, and a through hole penetrating the top plate is formed at the bottom of the overflow groove. An overflow outlet is formed on one side of the overflow groove, penetrating the top plate. A boss is formed on the upper mounting plate near the overflow outlet, corresponding to the position of the overflow outlet. The top of the boss is flush with the bottom of the overflow groove, forming an extension at the overflow outlet, and the boss forms a positioning groove for the mounting groove at its corresponding position.

[0005] As an optimization, the top plate is bent downwards on both sides to form a bent portion, the upper mounting plate and the lower mounting plate are formed on the opposite side of the two bent portions, and the oil overflow groove is formed by a recessed area of ​​the top plate.

[0006] As an optimization, multiple reinforcing ribs are spaced apart in the mounting groove along its extension direction. The reinforcing ribs are perpendicular to the bottom of the mounting groove, and their lower ends are integrally formed with the lower mounting plate, while their upper ends are spaced apart from the upper mounting plate.

[0007] As an optimization, the reinforcing rib is in the form of a right-angled triangle or a right-angled trapezoid.

[0008] As an optimization, a sealing gasket is attached to the bottom of the mounting groove.

[0009] As an optimization, the top plate is also provided with multiple fixed connecting ears on opposite sides.

[0010] Based on the above-described fuel tank cover structure, this utility model also provides a fuel tank cover mounting structure for a generator set, including the aforementioned fuel tank cover structure and a generator set housing. A fuel tank is mounted on the upper part of the housing, and the fuel tank has a filler port. The housing includes a left housing plate and a right housing plate, wherein an insertion part is provided on the upper part of the opposite side of the left and right housing plates, and the insertion part can be inserted into the mounting groove. A positioning protrusion corresponding to the positioning groove is provided on the insertion part of the left or right housing plate corresponding to the overflow port. When the insertion part is inserted into the mounting groove, the positioning protrusion is inserted into the positioning groove. A sealing ring is installed in the through hole, and the oil filler port seal passes through the sealing ring. The outer circumferential surface of the sealing ring is provided with an annular groove. The top plate on the periphery of the through hole is inserted into the annular groove, and the top surface of the oil tank is sealed and fitted with the bottom side of the sealing ring.

[0011] Compared with the prior art, the present invention has the following advantages: This utility model has a simple structure, is integrally molded, easy to process, and convenient and quick to assemble. After installation, the resulting structure has better integrity and sealing, which can effectively prevent overflow from entering the interior of the generator set housing. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 A magnified view of a portion of the image; Figure 3 This is a schematic diagram of the assembled structure of this utility model; Figure 4 This is a schematic diagram of the structure of the left box plate in this utility model; Figure 5 A schematic diagram of the positioning protrusion and the insertion part on the left box plate; Figure 6 This is a schematic diagram of the assembly structure of the left side panel and the fuel tank cover; Figure 7 This is a top view of the assembly structure of the left side panel and the fuel tank cover; Figure 8 for Figure 7 A partial enlarged view of the AA section view; Figure 9 for Figure 7A partial enlarged view of the BB section; Figure 10 This is a schematic diagram of the sealing ring structure; In the diagram: 1 Top plate, 2 Oil overflow groove, 3 Oil overflow port, 4 Through hole, 5 Upper mounting plate, 6 Lower mounting plate, 7 Mounting groove, 8 Outer extension, 9 Positioning groove, 10 Reinforcing rib, 11 Fixed connecting ear, 12 Box body, 13 Oil filling port, 14 Left box plate, 15 Positioning protrusion, 16 Sealing ring, 17 Insertion part. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0015] It should be noted that similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship commonly used when the product is in use. 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, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In addition, the terms "horizontal," "vertical," etc., do not indicate that the component is required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted. In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0016] Example: See Figures 1-10A fuel tank cover structure for a generator set includes a fuel tank cover body. Two parallel upper mounting plates 5 and lower mounting plates 6 extending along the outline of the top plate 1 are formed on both sides of the top plate 1 of the fuel tank cover body. A mounting groove 7 is formed between the upper mounting plate 5 and the lower mounting plate 6, with the openings of the mounting grooves 7 facing opposite directions. An overflow groove 2 is provided on the top plate 1, and a through hole 4 penetrating the top plate 1 is formed at the bottom of the overflow groove 2. An overflow outlet 3 is formed on one side of the overflow groove 2, penetrating one side of the top plate 1. A boss is formed on the upper mounting plate 5 near the overflow outlet, corresponding to the position of the overflow outlet 3. The top of the boss is flush with the bottom of the overflow groove 2, forming an extension 8 at the overflow outlet 3. The boss also forms a positioning groove 9 at the corresponding position of the mounting groove 7. This application adopts an integrally molded overflow groove 2, which simplifies the structure of the fuel tank cover. Through the installation grooves 7 and positioning grooves 9 on both sides of the top plate 1, it can achieve rapid installation and positioning, improving assembly efficiency. At the same time, the positioning groove 9 of this application is formed by bending the upper mounting plate 5 towards the overflow port 3, and the protrusion formed by bending is flush with the bottom of the overflow groove 2 to form an extension 8, which facilitates the discharge of overflowing fuel, allowing it to drip directly from the extension 8 onto the ground or the tank plate of the tank body 12, without flowing through the connection gap between the tank plate of the tank body 12 and the fuel tank cover, thus effectively preventing oil from seeping into the interior of the tank body 12. The combined structure of the overflow groove 2 and the installation groove 7 is fully utilized, and the structural design is more reasonable.

[0017] Specifically, in this embodiment, the opposite sides of the top plate 1 are bent downwards to form bent portions. The upper mounting plate 5 and the lower mounting plate 6 are formed on opposite sides of the two bent portions, giving them an n-shaped cross-section. The oil overflow groove 2 is formed by a recessed area of ​​the top plate 1. In this way, a recessed space is formed below the n-shaped top plate 1, creating the oil overflow groove 2. When the oil tank cover is installed above the oil tank, the top plate 1 of the oil overflow groove 2, corresponding to the position of the through hole 4, can fit snugly against the oil tank, achieving a good seal with the sealing ring 16.

[0018] Multiple reinforcing ribs 10 are spaced apart along the extension direction of the mounting groove 7. Each reinforcing rib 10 is perpendicular to the bottom of the mounting groove 7, with its lower end integrally formed with the lower mounting plate 6 and its upper end spaced apart from the upper mounting plate 5. The reinforcing ribs 10 are in the shape of right-angled triangles or right-angled trapezoids. A sealing gasket is affixed to the bottom of the mounting groove 7 to improve the connection strength and sealing performance at the joint.

[0019] The top plate 1 is also provided with multiple fixed connecting lugs 11 on opposite sides. After installation, it is easy to strengthen the connection with bolts and improve the overall integrity.

[0020] Based on the above-mentioned fuel tank cover structure, this utility model also provides a fuel tank cover installation structure for a generator set, including the aforementioned fuel tank cover structure, and further including a generator set housing 12. A fuel tank is installed on the upper part of the housing 12, and the fuel tank has a filler port 13. The housing 12 includes a left housing plate 14 and a right housing plate, wherein the left housing plate 14 and the right housing plate are provided with a plug-in portion 17 on their opposite sides. Specifically, the plug-in portion 17 is a folded edge structure formed by bending the upper edge of the left housing plate 14 and the right housing plate towards their opposite sides. The plug-in portion 17 can be inserted into the mounting groove 7. A positioning protrusion 15 corresponding to the positioning groove 9 is provided on the plug-in portion 17 of the left housing plate 14 or the right housing plate corresponding to the overflow port 3. In this embodiment, the left housing plate 14 is provided with a positioning protrusion 15 at the position of the right housing plate plug-in portion 17 corresponding to the positioning groove 9. When the plug-in portion 17 is inserted into the mounting groove 7, the positioning protrusion 15 is inserted into the positioning groove 9.

[0021] A sealing ring 16 is installed in the through hole 4, and the oil filling port 13 passes through the sealing ring 16. The outer circumferential surface of the sealing ring 16 is provided with an annular groove. The top plate 1 on the periphery of the through hole 4 is inserted into the annular groove, and the top wall of the oil tank is sealed and fitted to the bottom side of the sealing ring 16.

[0022] Multiple bolt holes are provided on the left and right boxes. During installation, the left and right boxes are connected to the top plate 1 along both sides of the top plate 1, so that the plug-in part 17 is inserted into the mounting groove 7. The left and right boxes are connected to the fixed connecting ears 11 on the top plate 1 by bolts, so that the bottom end of the plug-in part 17 is pressed against the sealing gasket in the mounting groove 7 to achieve a quick sealing connection.

[0023] In summary, this utility model has a simple structure, is integrally molded, easy to process, and convenient and quick to assemble. After installation, the resulting structure has better integrity and sealing, which can effectively prevent overflow from entering the interior of the generator set housing.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and not to limit the technical solutions. Those skilled in the art should understand that any modifications or equivalent substitutions to the technical solutions of this utility model that do not depart from the spirit and scope of this technical solution should be covered within the scope of the claims of this utility model.

Claims

1. A fuel tank cover structure for a generator set, characterized in that: The system includes a fuel tank cover body. Two parallel upper and lower mounting plates extending along the outline of the top plate are formed on both sides of the top plate of the fuel tank cover body. A mounting groove is formed between the upper and lower mounting plates, with the openings of the mounting grooves facing opposite directions. An overflow groove is provided on the top plate, with a through hole penetrating the top plate at the bottom of the overflow groove. An overflow outlet is formed on one side of the overflow groove, penetrating the top plate. A boss is formed on the upper mounting plate near the overflow outlet, corresponding to the position of the overflow outlet. The top of the boss is flush with the bottom of the overflow groove, forming an extension at the overflow outlet, and the boss forms a positioning groove for the mounting groove at its corresponding position.

2. The fuel tank cover structure of a generator set according to claim 1, characterized in that: The top plate is bent downwards on both sides to form a bent portion, the upper mounting plate and the lower mounting plate are formed on the opposite side of the two bent portions, and the oil overflow groove is formed by a recessed area of ​​the top plate.

3. The fuel tank cover structure of a generator set according to claim 1, characterized in that: Multiple reinforcing ribs are spaced apart along the extension direction in the mounting groove. The reinforcing ribs are perpendicular to the bottom of the mounting groove, and their lower ends are integrally formed with the lower mounting plate, while their upper ends are spaced apart from the upper mounting plate.

4. The fuel tank cover structure of a generator set according to claim 3, characterized in that: The reinforcing ribs are in the shape of right triangles or right trapezoids.

5. The fuel tank cover structure of a generator set according to claim 1, characterized in that: A sealing gasket is affixed to the bottom of the mounting groove.

6. The fuel tank cover structure of a generator set according to claim 1, characterized in that: The top plate is also provided with multiple fixed connecting ears on opposite sides.

7. A fuel tank cover mounting structure for a generator set, comprising the fuel tank cover structure as described in any one of claims 1-6, characterized in that, It also includes a generator set housing, with an oil tank installed on the upper part of the housing, the oil tank having an oil filler port; the housing includes a left panel and a right panel, wherein the upper part of the opposite side of the left panel and the right panel is provided with a plug-in part, which can be inserted into the mounting groove; a positioning protrusion corresponding to the positioning groove is provided on the plug-in part of the left panel or the right panel corresponding to the overflow port, and when the plug-in part is inserted into the mounting groove, the positioning protrusion is inserted into the positioning groove; A sealing ring is installed in the through hole, and the oil filler port seal passes through the sealing ring. The outer circumferential surface of the sealing ring is provided with an annular groove. The top plate on the periphery of the through hole is inserted into the annular groove, and the top surface of the oil tank is sealed and fitted with the bottom side of the sealing ring.

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