Oil tank upper cover sealing element of generator

Abstract

The utility model provides an oil tank upper cover sealing element of a generator, and belongs to the technical field of generators. The problem that a transparent window is covered by oil liquid when overflowing occurs in the existing oiling process is solved. According to the oil tank upper cover sealing element of the generator, the sealing element is provided with an oil groove, a mounting hole is formed in the bottom face of the oil groove, a transparent window is arranged on the sealing element, the transparent window is located outside the oil groove, and the height position of the transparent window is higher than the inner bottom face of the oil groove. According to the structure, when excessive oil is injected, oil overflows into the oil groove, the oil groove has certain oil storage and guiding functions, and the overflowed oil is prevented from flowing everywhere; the transparent window is located outside the oil groove and is higher than the inner bottom face of the oil groove, it is guaranteed that oil cannot flow to the transparent window through the structure, and the transparent window is prevented from being covered by the oil.

Description

Technical Field

[0001] The utility model belongs to the technical field of generators, and particularly refers to a sealing member for the upper cover of the fuel tank of a generator. Background Art

[0002] Existing digital generators generally use gasoline or diesel combustion to generate power, so a fuel tank must be assembled in the generator set, and the fuel tank supplies fuel to the combustion chamber of the generator set. The fuel injection port for injecting fuel into the fuel tank in the generator set is generally arranged on the upper cover of the generator set. In order to prevent oil leakage from the fuel injection port, a sealing member is generally arranged on the upper cover. For example, the Chinese Patent Network discloses a sealing device for a generator set [Authorization Publication No.: CN209369966U], which includes a frame assembly. There is a fuel tank arranged on the upper part of the frame assembly. There is a fuel injection port arranged on the fuel tank, a covering member is arranged above the fuel tank, a gasket is arranged on the covering member, a first through hole is arranged on the covering member, a second through hole is arranged on the gasket, and both the first through hole and the second through hole match the fuel injection port. Only a gasket is arranged on the covering member of this generator set. During the process of injecting fuel into the fuel tank, since the fuel quantity in the fuel tank cannot be seen, it is extremely easy to overfill the fuel during the fuel injection process, resulting in fuel overflowing from the fuel injection port, causing waste of fuel, and at the same time causing pollution to the outer surface of the generator and being inconvenient to clean.

[0003] In addition, the Chinese Patent Network also discloses a fuel tank of a generator set [Authorization Publication No.: CN212454661U]. There is a fuel filling port opened at the top of the upper half fuel tank, and an observation window is also opened at the top of the upper half box body. A fuel quantity gauge is arranged on the observation window. During the process of injecting fuel into the fuel tank, once overfilling occurs, it will cause fuel to overflow from the fuel injection port and cover the observation window, thereby causing the observation window to lose its function of observing the fuel quantity, and it is very inconvenient to clean the observation window. Summary of the Utility Model

[0004] The purpose of the present utility model is to address the above problems existing in the prior art and propose a sealing member for the upper cover of the fuel tank of a generator. The technical problem to be solved by the present utility model is: how to solve the problem that the transparent window is covered by oil liquid when overflow occurs during the refueling process.

[0005] The purpose of the present utility model can be achieved by the following technical solutions:

[0006] A sealing member for the upper cover of the fuel tank of a generator, the sealing member has an oil groove, and an installation hole is opened on the bottom surface of the oil groove. It is characterized in that a transparent window is arranged on the sealing member, the transparent window is located outside the oil groove and the height position of the transparent window is higher than the inner bottom surface of the oil groove.

[0007] This seal is installed on the upper cover of the casing. The installation hole allows the oil filling connector on the fuel tank to pass through. The transparent window is used to observe the fuel gauge on the fuel tank. During the process of filling the fuel tank, when overfilling occurs, the oil will overflow into the oil sump. The oil sump has a certain function of storing and guiding oil, preventing the overflowing oil from flowing everywhere. The transparent window is located outside the oil sump and the height position of the transparent window is higher than the inner bottom surface of the oil sump. This structure ensures that the oil will not flow to the position of the transparent window, avoiding the transparent window being covered by the oil.

[0008] In the above-mentioned seal for the upper cover of the fuel tank of a generator, the transparent window is formed inside the seal. Through the setting of this structure, the seal is made of PVC material. Before the seal is formed, the transparent window is placed in the mold. After the seal is formed, that is, the transparent window is integrated with the seal. The transparent window does not require additional assembly, improving the sealing performance and also the convenience of assembling the generator.

[0009] In the above-mentioned seal for the upper cover of the fuel tank of a generator, the seal has a diversion groove. The height position of the diversion groove is lower than the height position of the oil sump. There is a diversion surface between the diversion groove and the oil sump for guiding the oil from the oil sump to the diversion groove. One end of the diversion groove has an oil outlet. When the oil overflows into the oil sump, the oil in the oil sump flows along the diversion surface into the diversion groove, and the oil in the diversion groove is discharged through the oil outlet, thereby preventing the oil from overflowing from the oil sump and flowing to the transparent window.

[0010] In the above-mentioned seal for the upper cover of the fuel tank of a generator, the generator includes a casing, a fuel tank arranged inside the casing, and an upper cover located above the fuel tank. The fuel tank has an oil filling connector passing through the upper cover. The above-mentioned seal is arranged on the upper cover. The top of the fuel tank is provided with a fuel gauge. The oil filling connector passes through the installation hole and extends into the oil sump. The upper cover is provided with a through hole corresponding to the position of the fuel gauge, and the above-mentioned transparent window is arranged on the seal corresponding to the position of the through hole. After the seal is arranged on the upper cover, during the process of filling the fuel tank, when the oil overflows, the oil overflows onto the seal, and the seal isolates the hole position of the upper cover, preventing the oil from entering the casing of the generator. The setting of the through hole facilitates observing the fuel gauge through the transparent window, and thus knowing the oil quantity in the fuel tank.

[0011] In the above-mentioned seal for the upper cover of the fuel tank of a generator, a sealing ring is formed around the outer periphery of the oil filling connector on the inner bottom surface of the oil sump. The sealing ring has a sealing lip in contact with the outer peripheral surface of the oil filling connector. Through the setting of this structure, the sealing ring prevents the oil in the oil sump from entering the casing through the gap between the oil filling connector and the installation hole.

[0012] In the above-mentioned sealing member for the upper cover of the fuel tank of a generator, a relief hole is provided at the position of the upper cover corresponding to the fuel injection joint. The fuel injection joint is arranged through the relief hole, and a positioning boss embedded in the relief hole is provided on the lower surface of the sealing member. Through the setting of this structure, the assembly structure of the positioning boss and the relief hole plays a role of pre-positioning the installation of the sealing member on the one hand, and also plays a sealing role. The sealing ring forms the first seal, while the assembly structure of the positioning boss and the relief hole forms the second seal, preventing the oil in the oil tank from entering the machine housing.

[0013] In the above-mentioned sealing member for the upper cover of the fuel tank of a generator, an annular flange embedded in a through hole is provided on the lower surface of the sealing member. The assembly structure of the annular flange and the through hole plays a role of pre-positioning the installation of the sealing member, and at the same time also plays a role of positioning the transparent window, preventing the transparent window from shifting and ensuring that the transparent window can be aligned with the fuel gauge.

[0014] In the above-mentioned sealing member for the upper cover of the fuel tank of a generator, a plurality of buckles are distributed on the lower surface of the sealing member, and a plurality of clamping holes are provided on the upper cover. The buckles and the clamping holes correspond one by one, and each buckle is clamped with the corresponding clamping hole. The sealing member and the upper cover are clamped, which improves the fitting degree of the assembly of the sealing member and the upper cover.

[0015] Compared with the prior art, the sealing member for the upper cover of the fuel tank of the generator of the present utility model has the following advantages: This sealing member is installed on the upper cover of the machine housing. The installation hole allows the fuel injection joint on the fuel tank to pass through, and the transparent window is used to observe the fuel gauge on the fuel tank. During the process of refueling the fuel tank, when overfilling occurs, the oil will overflow into the oil sump. The oil sump has a certain function of storing and guiding oil, preventing the overflowing oil from flowing everywhere; the transparent window is located outside the oil sump and the height position of the transparent window is higher than the inner bottom surface of the oil sump. This structure ensures that the oil will not flow to the position of the transparent window, avoiding the transparent window being covered by the oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is one of the three-dimensional structure diagrams of the sealing member of the present utility model.

[0017] Figure 2 is the three-dimensional structure diagram of the generator of the present utility model.

[0018] Figure 3 is the three-dimensional structure diagram of the generator of the present utility model with the sealing member removed.

[0019] Figure 4 is the three-dimensional structure diagram of the generator of the present utility model with the sealing member and the upper cover removed.

[0020] Figure 5 is the second three-dimensional structure diagram of the sealing member of the present utility model.

[0021] In the figure, 1 is the casing; 2 is the fuel tank; 20 is the fuel filling joint; 3 is the upper cover; 30 is the through hole; 31 is the relief hole; 32 is the clamping hole; 4 is the seal; 40 is the oil groove; 41 is the mounting hole; 42 is the sealing ring; 420 is the sealing lip; 43 is the positioning boss; 44 is the annular flange; 45 is the buckle; 46 is the diversion groove; 47 is the diversion surface; 48 is the oil outlet; 5 is the fuel gauge; 6 is the transparent viewing window. Specific embodiments

[0022] The following are specific embodiments of the present invention and in combination with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0023] As Figures 1 to 4 shown, for the seal of the upper cover of the fuel tank of this generator, the generator includes a casing 1, a fuel tank 2 arranged inside the casing 1, and an upper cover 3 located above the fuel tank 2. The fuel tank 2 has a fuel filling joint 20 passing through the upper cover 3. A relief hole 31 is provided at the position of the upper cover 3 corresponding to the fuel filling joint 20, and the fuel filling joint 20 is arranged through the relief hole 31. A seal 4 is provided on the upper cover 3. The seal 4 has an oil groove 40. A mounting hole 41 is provided on the bottom surface of the oil groove 40. The fuel filling joint 20 passes through the mounting hole 41 and extends into the oil groove 40. A fuel gauge 5 is provided at the top of the fuel tank 2. A through hole 30 is provided at the position of the upper cover 3 corresponding to the fuel gauge 5. A transparent viewing window 6 is provided at the position of the seal 4 corresponding to the through hole 30. The transparent viewing window 6 is located outside the oil groove 40 and the height position of the transparent viewing window 6 is higher than the inner bottom surface of the oil groove 40. The seal 4 has a diversion groove 46. The height position of the diversion groove 46 is lower than the height position of the oil groove 40. There is a diversion surface 47 between the diversion groove 46 and the oil groove 40 for guiding the oil fluid to flow from the oil groove 40 to the diversion groove 46. One end of the diversion groove 46 has an oil outlet 48. First, the fuel tank 2 is filled with oil through the fuel filling joint 20. When the oil filling is excessive, the oil fluid will overflow into the oil groove 40. The oil fluid in the oil groove 40 will flow along the diversion surface 47 into the diversion groove 46. The oil fluid in the diversion groove 46 is discharged through the oil outlet 48, preventing the oil fluid from flowing to the position of the transparent viewing window 6 and causing pollution to the transparent viewing window 6. The setting of the seal 4 isolates the through hole 30 and the relief hole 31, preventing the oil fluid in the oil groove 40 from entering the inside of the casing 1 through the through hole 30 and the relief hole 31.

[0024] As Figure 1 shown, the transparent viewing window 6 is formed inside the seal 4. The seal 4 is made of PVC. Before the seal 4 is formed, the transparent viewing window 6 is placed in the mold. After the seal 4 is formed, that is, the transparent viewing window 6 is integrated with the seal 4. The transparent viewing window 6 does not require additional assembly, improving the sealing performance and also the convenience of assembling the generator.

[0025] As Figure 1 and Figure 2As shown in the figure, a sealing ring 42 is formed on the inner bottom surface of the oil sump 40 around the outer periphery of the oil filling joint 20. The sealing ring 42 has a sealing lip 420 that contacts the outer peripheral surface of the oil filling joint 20. The setting of the sealing ring 42 prevents the oil in the oil sump 40 from entering the machine housing 1 through the gap between the oil filling joint 20 and the mounting hole 41.

[0026] As Figure 3 and Figure 5 As shown in the figure, the lower surface of the seal 4 has a positioning boss 43 embedded in the relief hole 31, and the lower surface of the seal 4 has an annular flange 44 embedded in the through hole 30. A number of buckles 45 are distributed on the lower surface of the seal 4, and the upper cover 3 has a number of snap holes 32. The buckles 45 and the snap holes 32 correspond one by one, and each buckle 45 is snapped into the corresponding snap hole 32.

[0027] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A seal for an oil tank cover of a generator, wherein the seal (4) has an oil groove (40), and a mounting hole (41) is provided on the bottom surface of the oil groove (40), characterized in that: The sealing member (4) is provided with a transparent window (6), the transparent window (6) is located outside the oil groove (40), and the height of the transparent window (6) is higher than the inner bottom surface of the oil groove (40).

2. The oil tank upper cover seal of a generator according to claim 1, characterized in that: The transparent window (6) is formed in the sealing member (4).

3. The oil tank upper cover seal of a generator according to claim 1, characterized in that: The sealing member (4) has a guide groove (46), the height of the guide groove (46) is lower than the height of the oil groove (40), a guide surface (47) is provided between the guide groove (46) and the oil groove (40) for guiding oil to flow from the oil groove (40) to the guide groove (46), and one end of the guide groove (46) has an oil outlet (48).

4. The oil tank upper cover seal of a generator according to claim 1, characterized in that: The generator comprises a casing (1), an oil tank (2) arranged in the casing (1), and an upper cover (3) located above the oil tank (2); the oil tank (2) has an oil filling joint (20) passing through the upper cover (3); the upper cover (3) is provided with the sealing member (4); an oil level gauge (5) is arranged on the top of the oil tank (2); the oil filling joint (20) passes through a mounting hole (41) and extends into an oil tank (40); a through hole (30) is provided on the upper cover (3) at a position corresponding to the oil level gauge (5); and the transparent window (6) is provided on the sealing member (4) at a position corresponding to the through hole (30).

5. The oil tank upper cover seal of a generator according to claim 4, characterized in that: A sealing ring (42) is formed on the inner bottom surface of the oil groove (40) around the outer periphery of the oil filling joint (20), and the sealing ring (42) has a sealing lip (420) in contact with the outer periphery of the oil filling joint (20).

6. The oil tank upper cover seal of a generator according to claim 4, characterized in that: The upper cover (3) is provided with a clearance hole (31) at a position corresponding to the oil filling joint (20), the oil filling joint (20) is arranged through the clearance hole (31), and the lower surface of the sealing member (4) has a positioning boss (43) embedded in the clearance hole (31).

7. The oil tank upper cover seal of a generator according to claim 4, characterized in that: The lower surface of the sealing member (4) has an annular flange (44) embedded in the through hole (30).

8. The oil tank upper cover seal of a generator according to claim 4, characterized in that: A plurality of buckles (45) are distributed on the lower surface of the sealing member (4), and the upper cover (3) has a plurality of buckle holes (32). The buckles (45) correspond to the buckle holes (32) one by one, and each buckle (45) is buckled with a corresponding buckle hole (32).

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