Plastic fuel tank mounting structure and loader

Abstract

The utility model relates to the technical field of fuel tank installation, in particular to a plastic fuel tank installation structure and a loader, the plastic fuel tank installation structure comprises a frame, a fuel tank body, a bottom fixing frame and a top fixing frame; the fuel tank body is arranged at the rear part between the left and right longitudinal beams of the frame; the bottom fixing frame is a rectangular frame and is fixedly connected with the frame from the lower part of the frame; the bottom of the fuel tank body is located on the bottom fixing frame and provided with a lower boss protruding downwards into the bottom fixing frame, and the side face of the lower boss abuts against the bottom fixing frame. The top fixing frame is arranged at the top of the fuel tank body and fixedly connected with the frame, and a top groove allowing the top fixing frame to be embedded therein from top to bottom is formed in the top of the fuel tank body. In the utility model, the plastic oil tank is mounted from bottom to top, so that the plastic oil tank can be conveniently dismounted, mounted and maintained later, and the bottom fixing frame for fixing the plastic oil tank is simple in structure.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel tank installation, and more specifically to a plastic fuel tank installation structure and a loader. Background Art

[0002] The plastic fuel tank on the loader is usually installed at the rear of the rear frame, between the two longitudinal beams of the rear frame and in front of the tail plate. The existing rear plastic fuel tank of the loader is installed by fastening the plastic fuel tank and the mounting bracket together through a hoop. For example, Chinese patent document CN206520481U discloses a loader frame type rotational molded fuel tank, including a tank body made of plastic material, the tank body is fixed in a metal frame by a fastening device, and the metal frame is rigidly connected to the frame by bolts. In this installation structure, the metal frame is fixed to the rear frame, and the mounting bolts are tightened from top to bottom. When the fuel tank is replaced and maintained in the later stage, the mounting bolts are blocked by the radiator, it is inconvenient to remove the mounting bolts, maintenance is difficult, and the top of the tank is not strong enough and is prone to deformation. Utility Model Content

[0003] The technical problem to be solved by the utility model is the problem of installation and fixation of the existing plastic fuel tank, and provides a plastic fuel tank installation structure and a loader.

[0004] The utility model provides a technical solution to achieve its purpose: a plastic fuel tank installation structure, which includes a vehicle frame, a fuel tank body, a bottom fixing frame, and a top fixing frame; the fuel tank body is arranged at the rear part between the left and right longitudinal beams of the vehicle frame;

[0005] The bottom fixing frame is a rectangular frame, which is fixedly connected and installed with the frame from the bottom of the frame; the bottom of the fuel tank body is seated on the bottom fixing frame and has a lower boss protruding downward into the frame of the bottom fixing frame, and the side surface of the lower boss abuts against the bottom fixing frame;

[0006] The top fixing frame is arranged on the top of the fuel tank body and is fixedly connected to the vehicle frame. The top of the fuel tank body is provided with a top groove for the top fixing frame to be embedded therein from top to bottom.

[0007] In the plastic fuel tank installation structure of the utility model, the length direction of the top groove is arranged obliquely with the middle surface of the frame, and the top fixing frame is composed of straight rods with two ends fixedly connected to the two longitudinal beams of the frame.

[0008] In the plastic fuel tank installation structure of the utility model, a rubber pad is arranged between the groove wall surface of the top groove and the top fixing frame.

[0009] In the utility model of the plastic fuel tank installation structure, the top fixing frame is formed by bending a steel plate, and its cross section is in a U-shape with the notch facing upwards.

[0010] In the plastic fuel tank installation structure of the utility model, upper supports are arranged on the inner side surfaces of the two longitudinal beams of the frame, and the upper supports are in the shape of longitudinally arranged slats. The left and right ends of the top fixing frame are fixedly connected to the upper supports on the left and right sides, and avoidance steps are arranged on the left and right sides of the top of the fuel tank body to avoid the upper supports.

[0011] In the plastic fuel tank installation structure of the utility model, a shock-absorbing pad is arranged on the top surface of the bottom fixing frame that abuts against the fuel tank body.

[0012] In the plastic fuel tank mounting structure of the utility model, the bottom fixing frame is composed of two cross bars and two longitudinal bars connected end to end, the longitudinal bars are fixed to the upper side surfaces of the ends of the cross bars, and the ends of the longitudinal bars are fixed with inverted L-shaped or Z-shaped mounting buckles; the inner side surfaces of the longitudinal beams of the frame are provided with lower supports, and the mounting buckles are fixed to the corresponding bottom surfaces of the lower supports by bolts.

[0013] The plastic fuel tank installation structure of the utility model further comprises a protective bottom plate, which is fixed on the bottom fixing frame and is located at the lower side of the bottom fixing frame.

[0014] In the utility model plastic fuel tank installation structure, the left and right ends of the protective bottom plate have bent edges bent upward, nut blocks are fixed to the lower sides of the two longitudinal rods, and the bent edges at the left and right ends of the protective bottom plate are fixedly connected to the nut blocks by bolts.

[0015] The utility model provides a technical solution for achieving the purpose: a loader having the above-mentioned plastic fuel tank installation structure.

[0016] Compared with the prior art, in the utility model, the plastic oil tank is installed from bottom to top, which is convenient for later disassembly, installation and maintenance of the plastic oil tank, and the bottom fixing frame for fixing the plastic oil tank has a simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the installation structure of the plastic fuel tank of the utility model.

[0018] Figure 2 It is an exploded schematic diagram of the installation structure of the plastic fuel tank of the utility model.

[0019] Figure 3 The utility model is a structural schematic diagram of the rear part of the frame in the plastic fuel tank installation structure.

[0020] Figure 4The utility model is a structural schematic diagram of a plastic fuel tank in a plastic fuel tank installation structure.

[0021] Figure 5 The utility model is a schematic diagram of the structure of the bottom fixing frame in the plastic fuel tank installation structure.

[0022] Figure 6 This is a schematic diagram of the assembly structure of the bottom fixing frame and the plastic fuel tank in the plastic fuel tank installation structure of the utility model. Figure 1 .

[0023] Figure 7 This is a schematic diagram of the assembly structure of the bottom fixing frame and the plastic fuel tank in the plastic fuel tank installation structure of the utility model. Figure 2 .

[0024] Figure 8 The utility model is a structural schematic diagram of a top fixing frame in a plastic fuel tank installation structure.

[0025] Parts names and serial numbers in the figure:

[0026] Vehicle frame 1, longitudinal beam 11, upper support 12, lower support 13.

[0027] The fuel tank body 2, the top groove 21, the avoidance step 22, and the lower boss 23.

[0028] Bottom fixing frame 3, shock absorbing pad 31, longitudinal rod 32, cross rod 33, mounting buckle 34, nut block 35.

[0029] Protective bottom plate 4, bent edge 41.

[0030] Top fixing frame 5, rubber pad 51. DETAILED DESCRIPTION

[0031] The specific implementation scheme is described below with reference to the accompanying drawings.

[0032] like Figure 1 As shown, the plastic fuel tank mounting structure in this embodiment includes a vehicle frame 1, a fuel tank body 2, a bottom fixing frame 3, and a top fixing frame 5. The fuel tank body 2 is arranged at the rear portion between the left and right longitudinal beams 11 of the vehicle frame 1, and is located at the front side of the frame tail plate.

[0033] The bottom fixing frame 3 is a rectangular frame, which is fixedly connected to the frame 1 from below the frame 1; the bottom of the fuel tank 2 is seated on the bottom fixing frame 3, and the bottom of the fuel tank 2 has a lower boss 23 protruding downward into the frame of the bottom fixing frame 3, such as Figure 4 The side surface of the lower boss 23 abuts against the bottom fixing frame 3, as shown in FIG. Figure 6The fuel tank 2 is installed from the bottom, and when the fuel tank 2 is disassembled and maintained later, there is no need to remove the components fixed on the frame 1 and located above the fuel tank 2. The bottom fixing frame 3 adopts a rectangular frame structure, and the fuel tank 2 has a lower boss 23 embedded in the bottom fixing frame frame, which facilitates the good connection and fixation of the fuel tank 2 and the bottom fixing frame 3.

[0034] like Figure 1 As shown, the top fixing frame 5 is arranged on the top of the fuel tank 2 and is fixedly connected to the vehicle frame 1. Figure 4 As shown, a top groove 21 is provided on the top of the fuel tank 2 for the top fixing frame 5 to be embedded therein from top to bottom. The top of the fuel tank 2 cooperates with the top fixing frame 5 embedded therein through the top groove 21 to fix the top of the fuel tank 2.

[0035] like Figure 1 As shown, the length direction of the top groove 21 is arranged obliquely with the middle surface of the frame 1, and the top fixing frame 5 is composed of a straight rod whose two ends are fixedly connected to the two longitudinal beams 11 of the frame 1. The length direction of the top groove 21 is arranged obliquely with the longitudinal direction (i.e., the front-to-back direction) and the transverse direction (i.e., the left-to-right direction), so that the top fixing frame 5 has a restraining effect on the fuel tank body 2 in the left-to-right direction and the front-to-back direction, preventing the top of the fuel tank body 2 from shaking in the front-to-back direction and the left-to-right direction.

[0036] The oblique straight rod type top fixing frame 5 not only plays a role in restraining and fixing the top of the fuel tank body 2 in both the longitudinal and transverse directions, but also simplifies the structure of the top fixing frame 5 and reduces the cost.

[0037] In some embodiments, the top groove 21 can also be a T-shaped groove. Accordingly, the top fixing frame 5 is also a T-shaped frame, the ends of the transverse rods of the T-shaped frame are fixedly connected to the left and right longitudinal beams of the frame, and the longitudinal rods of the T-shaped frame are fixedly connected to the tail plate of the frame.

[0038] Alternatively, if Figure 2 As shown, a rubber pad 51 is provided between the groove wall surface of the top groove 21 and the top fixing frame 5. The rubber pad 51 is elastic and prevents the fuel tank 2 from directly contacting the top fixing frame 5, thereby preventing the fuel tank 2 from being worn. The groove wall surface of the top groove 21 includes a groove bottom wall surface and side wall surfaces located on both sides of the groove bottom.

[0039] like Figure 8 As shown, the top fixing frame 5 is formed by bending a steel plate, and its cross section is in a U-shape with the notch facing upward. With this structure, the weight of the top fixing frame 5 can be reduced while ensuring the strength.

[0040] like Figure 3As shown in FIG. 1 , the inner side surfaces of the two longitudinal beams 11 of the frame 1 (the side surfaces facing the middle surface of the frame) are provided with upper supports 11, which are in the form of longitudinally arranged strips. Figure 1 As shown, the left and right ends of the top fixing frame 5 are fixedly connected to the upper supports 12 on the left and right sides, and the left and right sides of the top of the fuel tank body 2 are provided with avoidance steps 22 for avoiding the upper supports 12, as shown in FIG. Figure 4 Figure 7 shown.

[0041] like Figure 5 As shown, the bottom fixing frame 3 is composed of two horizontal bars 33 and two longitudinal bars 32 connected end to end. The longitudinal bars 32 are fixed to the upper side of the ends of the horizontal bars 33. The ends of the two longitudinal bars 32 are fixed with Z-shaped mounting buckles 34. Figure 3 As shown, four lower supports 13 are provided on the inner side of the longitudinal beam 11 of the vehicle frame 1, and each mounting buckle 34 is fixed to the bottom surface of the corresponding lower support 13 by bolts. The horizontal portion of one end of the Z-shaped mounting buckle 34 is attached to the lower side surface of the end of the longitudinal rod 32, and the horizontal portion of the other end is attached to the bottom surface of the lower support 13 and fixed by bolts, and the section between the two ends of the horizontal portion is attached to the cross section of the longitudinal rod 32. The Z-shaped mounting buckle 34 can also adopt an inverted L shape, and its vertical portion is fixed to the end of the longitudinal rod 32.

[0042] A shock absorbing pad 31 is arranged on the top surface of the bottom fixing frame 3 which abuts against the fuel tank body 2. Figure 5 The shock-absorbing pad 31 is a rubber product, which prevents the bottom fixing frame 3 and the fuel tank body 2 from direct contact, thereby preventing collision and friction between them and preventing the fuel tank body 2 from being worn during use.

[0043] like Figure 5 Figure 6 As shown, the protective bottom plate 4 is fixed on the bottom fixing frame 3, located on the lower side of the bottom fixing frame 3, and covers the bottom surface of the fuel tank body 2. The left and right ends of the protective bottom plate 4 have bent edges 41 bent upward. Nut blocks 35 are fixed to the lower side surfaces of the two longitudinal rods 32. The bent edges 41 at the left and right ends of the protective bottom plate 4 are fixedly connected to the nut blocks 35 by bolts, and the bent edges 41 are located on the outside of the nut blocks (the side facing away from the middle surface of the frame). The protective bottom plate 4 protects the bottom surface of the plastic fuel tank to prevent it from being hit and pierced by sharp objects during use.

[0044] This embodiment also provides a loader having the aforementioned plastic fuel tank mounting structure, wherein the frame 1 is the rear frame of the loader.

[0045] In this embodiment, the plastic oil tank is installed from bottom to top, which is convenient for later disassembly, installation and maintenance of the plastic oil tank. The bottom fixing frame and the top fixing frame for fixing the plastic oil tank have simple structures, which can reduce manufacturing costs.

Claims

1. A plastic fuel tank mounting structure, characterized in that: It includes a vehicle frame, a fuel tank, a bottom fixing frame, and a top fixing frame; the fuel tank is arranged at the rear part between the left and right longitudinal beams of the vehicle frame; The bottom fixing frame is a rectangular frame, which is fixedly connected and installed with the frame from the bottom of the frame; the bottom of the fuel tank body is seated on the bottom fixing frame and has a lower boss protruding downward into the frame of the bottom fixing frame, and the side surface of the lower boss abuts against the bottom fixing frame; The top fixing frame is arranged on the top of the fuel tank body and is fixedly connected to the vehicle frame. The top of the fuel tank body is provided with a top groove for the top fixing frame to be embedded therein from top to bottom.

2. The plastic fuel tank installation structure according to claim 1, characterized in that: The length direction of the top groove is arranged obliquely with the middle surface of the frame, and the top fixing frame is composed of straight rods with two ends fixedly connected to the two longitudinal beams of the frame.

3. The plastic fuel tank installation structure according to claim 2, characterized in that: A rubber pad is arranged between the groove wall surface of the top groove and the top fixing frame.

4. The plastic fuel tank installation structure according to claim 2, characterized in that: The top fixing frame is formed by bending a steel plate, and its cross section is in a U-shape with the notch facing upward.

5. The plastic fuel tank mounting structure according to any one of claims 2 to 4, characterized in that: Upper supports are arranged on the inner side surfaces of the two longitudinal beams of the frame, and the upper supports are in the shape of longitudinally arranged slats. The left and right ends of the top fixing frame are fixedly connected to the upper supports on the left and right sides, and avoidance steps are arranged on the left and right sides of the top of the fuel tank body to avoid the upper supports.

6. The plastic fuel tank installation structure according to claim 1, characterized in that: A shock-absorbing pad is arranged on the top surface of the bottom fixing frame that abuts against the fuel tank body.

7. The plastic fuel tank installation structure according to claim 6, characterized in that: The bottom fixing frame is composed of two cross bars and two longitudinal bars connected end to end, the longitudinal bars are fixed to the upper side surfaces of the ends of the cross bars, and the ends of the longitudinal bars are fixed with inverted L-shaped or Z-shaped mounting buckles; the inner side surfaces of the longitudinal beams of the frame are provided with lower supports, and each of the mounting buckles is fixed to the bottom surface of the corresponding lower supports by bolts.

8. The plastic fuel tank installation structure according to claim 7, characterized in that: It also includes a protective bottom plate, which is fixed on the bottom fixing frame and is located at the lower side of the bottom fixing frame.

9. The plastic fuel tank installation structure according to claim 8, characterized in that: The left and right ends of the protective bottom plate have bent edges bent upward, and nut blocks are fixed to the lower sides of the two longitudinal rods. The bent edges at the left and right ends of the protective bottom plate are fixedly connected to the nut blocks by bolts.

10. A loader, characterized in that: The plastic fuel tank installation structure comprises the plastic fuel tank installation structure according to any one of claims 1 to 9.

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