Semitrailer fuel tank protection structure

Abstract

The utility model discloses a semi -trailer oil tank protection structure belongs to semi -trailer equipment technical field, this semi -trailer oil tank protection structure, including the frame, set up in the oil tank of frame side portion, the outside of oil tank is provided with protection subassembly, protection subassembly includes the base fixedly connected in the side face bottom of frame, sets up the first protection frame in the base top, oppositely sets up the second protection frame in the first protection frame outside, sets up the anti -impact unit in the second protection frame side portion, and the anti -impact unit includes the fixed frame installation in the frame side portion, the slide is connected fixedly between the fixed frame and the second protection frame, oppositely sets up the first anti -impact board and second anti -impact board in the slide outside, and is provided with the buffer portion between first anti -impact board and second anti -impact board. The utility model passes through setting protection subassembly, has reduced the force of oil tank when being impacted, has improved the protection effect.

Description

Technical Field

[0001] This utility model relates to the field of semi-trailer equipment technology, and in particular to a protective structure for a semi-trailer fuel tank. Background Technology

[0002] Due to the increasing number of traffic accidents in my country in recent years, when a vehicle accident leads to fuel leakage, and other external factors cause the fuel to ignite, resulting in fires and explosions, requirements have been set for the safety of vehicle fuel tanks to prevent such incidents. my country's transportation industry standard JT / T1094-2016 (Safety Technical Conditions for Operating Passenger Vehicles) requires that the fuel tank be located on the side.

[0003] In existing semi-trailers, the fuel tank and its protective device are usually installed together with the fuel tank, allowing for compatible installation in newly manufactured vehicles. Because the protective device is directly or indirectly connected to the fuel tank, in the event of a collision, when the protective device is impacted, the impact force is transmitted along the directly connected protective device to the fuel tank. At high speeds and with high impact forces, the protective effect is limited.

[0004] Therefore, there is an urgent need to provide a protective structure for the fuel tank of a semi-trailer to solve the above problems. Utility Model Content

[0005] The technical problem this invention aims to solve is to overcome the existing structure of semi-trailer fuel tanks and their protective devices, which are usually installed in conjunction with the fuel tank, allowing for compatible installation in newly manufactured vehicles. Because the protective device is directly or indirectly connected to the fuel tank, in the event of a collision, when the protective device is impacted, the impact force is transmitted along the directly connected protective device to the fuel tank. This results in limited protective effectiveness at high speeds and with high impact forces. This invention provides a protective structure for a semi-trailer fuel tank.

[0006] To solve the above-mentioned technical problems, the present invention provides a protective structure for a semi-trailer fuel tank, including a frame and a fuel tank disposed on the side of the frame, wherein a protective component is disposed on the outside of the fuel tank.

[0007] The protective assembly includes a base fixedly connected to the bottom side of the vehicle frame, a first protective frame disposed on top of the base, a second protective frame disposed opposite to the outside of the first protective frame, and an impact-resistant unit disposed on the side of the second protective frame.

[0008] The present invention is further configured such that: an oil inlet is provided on the top of the oil tank, and a sealing cap is provided at the oil inlet.

[0009] The present invention is further configured such that: a slot is provided on the top surface of the base, and the size of the slot is adapted to the bottom size of the first protective frame and the second protective frame.

[0010] The present invention is further configured such that: the first protective frame and the second protective frame have the same structure and both are U-shaped;

[0011] Both the first and second protective frames have mounting plates installed at their ends, and the mounting plates are fixedly connected to the vehicle frame by locking bolts.

[0012] The present invention is further configured such that: a buffer space is provided between the fuel tank and the vehicle frame and the second protective frame, and a buffer pad is provided on the inner side of the buffer space.

[0013] The present invention is further configured such that: there are two sets of the anti-impact units, and the two sets of the anti-impact units are arranged opposite to each other on the outside of the oil tank;

[0014] The shock-absorbing unit includes a fixed frame installed on the side of the vehicle frame, a slide bar fixedly connected between the fixed frame and the second protective frame, a first shock-absorbing plate and a second shock-absorbing plate disposed opposite to each other on the outside of the slide bar, and a buffer portion provided between the first shock-absorbing plate and the second shock-absorbing plate.

[0015] The present invention is further configured such that: a sliding sleeve is installed on the outer side of the first impact-resistant plate, and the sliding sleeve is movably connected to the outer side of the sliding rod;

[0016] A guide sleeve is installed on the outer side of the second impact plate. The guide sleeve is movably connected to the outer side of the slide rod, and a locking member is threadedly connected to the side wall of the guide sleeve. A locking groove that matches the end size of the locking member is opened on the surface of the slide rod.

[0017] The present invention is further configured such that: the buffer part includes a fixed seat installed on the side of the second anti-impact plate relative to the first anti-impact plate, one end of a buffer seat movably disposed inside the fixed seat, the other end of the buffer seat being installed on the side of the first anti-impact plate, and a damping pad being disposed between the buffer seat and the fixed seat;

[0018] The buffer section also includes a buffer post installed at the corner of the side of the first impact plate and a buffer spring disposed on the outside of the buffer post, with one end of the buffer post extending through to the outside of the second impact plate.

[0019] The beneficial effects of this utility model are as follows:

[0020] 1. This utility model utilizes a protective assembly to weld the base to the bottom side of the vehicle frame. The bottoms of the first and second protective frames are inserted into slots and secured to the frame with the locking bolts of the mounting plate. The fuel tank is placed in the buffer space between the two protective frames, achieving flexible fixation with the elastic support of the buffer pad. The impact-resistant unit, in conjunction with the sliding rod, connects the fixing frame and the second protective frame. The preload of the locking element is adjusted to control the sliding resistance of the guide sleeve. When an external impact acts on the second protective frame, the impact force is transmitted to the buffer section through the sliding rod. The multi-layer composite structure of the damping pad dissipates energy in stages, the buffer spring and buffer column work together to absorb residual impact, and the limiting block prevents excessive displacement, thereby reducing the force on the fuel tank when impacted and improving the protective effect. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0023] Figure 3 This is a three-dimensional cross-sectional view of the protective component of this utility model;

[0024] Figure 4 for Figure 3 A magnified view of a section at point B in the middle.

[0025] In the picture:

[0026] 1. Frame;

[0027] 2. Fuel tank; 21. Sealing cap;

[0028] 3. Protective components; 31. Base; 311. Slot; 32. First protective frame; 321. Mounting plate; 33. Second protective frame; 34. Impact-resistant unit; 341. Fixing frame; 342. Slide rod; 343. First impact-resistant plate; 3431. Sliding sleeve; 344. Second impact-resistant plate; 3441. Guide sleeve; 3442. Locking element; 345. Buffer part; 3451. Fixing seat; 3452. Buffer seat; 3453. Damping pad; 3454. Buffer column; 3455. Buffer spring; 35. Buffer pad. Detailed Implementation

[0029] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0030] Please see Figures 1-4A protective structure for a semi-trailer fuel tank includes a frame 1, a fuel tank 2 disposed on the side of the frame 1, and a protective component 3 disposed on the outside of the fuel tank 2. The protective component 3 is used to protect the fuel tank 2 and prevent the fuel tank 2 from being damaged due to excessive impact force during a collision.

[0031] The protective component 3 includes a base 31 fixedly connected to the bottom side of the frame 1, a first protective frame 32 disposed on the top of the base 31, a second protective frame 33 disposed opposite to the outside of the first protective frame 32, and an impact-resistant unit 34 disposed on the side of the second protective frame 33.

[0032] The oil tank 2 has an oil inlet at the top, and a sealing cap 21 is provided at the oil inlet. Preferably, the sealing cap 21 is threaded to the oil inlet.

[0033] The base 31 has a slot 311 on its top surface, and the size of the slot 311 is adapted to the bottom size of the first protective frame 32 and the second protective frame 33.

[0034] The first protective frame 32 and the second protective frame 33 have the same structure and are both U-shaped.

[0035] Mounting plates 321 are installed at the ends of both the first protective frame 32 and the second protective frame 33. The mounting plates 321 are fixedly connected to the frame 1 by locking bolts.

[0036] Among them, buffer spaces are provided between the fuel tank 2, the frame 1, and the second protective frame 33, and a buffer pad 35 is provided on the inner side of the buffer space. Preferably, the buffer pad 35 is a multi-layer composite high-elasticity material, and its structure includes:

[0037] Base layer: 3-5mm thick polyurethane microporous foam layer;

[0038] Intermediate layer: Gradient density silicone rubber layer;

[0039] Surface layer: Oil-resistant modified TPU coating.

[0040] There are two sets of anti-impact units 34, which are arranged opposite to each other on the outside of the oil tank 2.

[0041] The impact protection unit 34 includes a fixed frame 341 installed on the side of the frame 1, a slide bar 342 fixedly connected between the fixed frame 341 and the second protective frame 33, a first impact protection plate 343 and a second impact protection plate 344 disposed opposite to each other on the outside of the slide bar 342, and a buffer portion 345 is provided between the first impact protection plate 343 and the second impact protection plate 344.

[0042] Among them, a sliding sleeve 3431 is installed on the outer side of the first impact plate 343, and the sliding sleeve 3431 is movably connected to the outer side of the sliding rod 342;

[0043] A guide sleeve 3441 is installed on the outer side of the second impact plate 344. The guide sleeve 3441 is movably connected to the outer side of the slide rod 342, and a locking member 3442 is threadedly connected to the side wall of the guide sleeve 3441. A locking groove that matches the end size of the locking member 3442 is opened on the surface of the slide rod 342. Preferably, the locking member 3442 is a locking screw.

[0044] The buffer portion 345 includes a fixed seat 3451 installed on the side of the second impact plate 344 opposite to the first impact plate 343, and a buffer seat 3452 movably disposed inside the fixed seat 3451. The other end of the buffer seat 3452 is installed on the side of the first impact plate 343. A damping pad 3453 is provided between the buffer seat 3452 and the fixed seat 3451. Preferably, the damping pad 3453 is a multi-directional damping composite structure, including a base layer of modified polyurethane material; a constraint layer of 0.3mm thick 304 stainless steel constraint sheet; and a viscoelastic layer of siloxane-acrylate copolymer.

[0045] The buffer portion 345 also includes a buffer post 3454 installed at the corner of the side of the first impact plate 343 and a buffer spring 3455 disposed on the outside of the buffer post 3454. One end of the buffer post 3454 extends through to the outside of the second impact plate 344. Preferably, a limit block is installed at the end of the buffer post 3454 away from the first impact plate 343.

[0046] During installation, the base 31 is first welded to the bottom side of the frame 1. The bottoms of the first protective frame 32 and the second protective frame 33 are inserted into the slot 311 and secured to the frame 1 by the locking bolts of the mounting plate 321. The fuel tank 2 is placed in the buffer space between the two protective frames and is flexibly fixed by the elastic support of the buffer pad 35. The impact protection unit 34 connects the fixing frame 341 and the second protective frame 33 through the slide rod 342. The preload of the locking element is adjusted to control the sliding resistance of the guide sleeve 3441. When an external impact acts on the second protective frame 33, the impact force is transmitted to the buffer part 345 through the slide rod 342. The multi-layer composite structure of the damping pad 3453 dissipates energy in stages, the buffer spring 3455 and the buffer column 3454 work together to absorb the residual impact, and the limiting block prevents excessive displacement, thereby reducing the force on the fuel tank 2 when it is impacted and improving the protection effect.

[0047] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A protective structure for a semi-trailer fuel tank, comprising a frame (1) and a fuel tank (2) disposed on the side of the frame (1), characterized in that: The outer side of the oil tank (2) is provided with a protective component (3); The protective component (3) includes a base (31) fixedly connected to the bottom side of the frame (1), a first protective frame (32) disposed on the top of the base (31), a second protective frame (33) disposed opposite to the outside of the first protective frame (32), and an anti-impact unit (34) disposed on the side of the second protective frame (33).

2. The semi-trailer fuel tank protection structure according to claim 1, characterized in that: The top of the oil tank (2) is provided with an oil inlet, and a sealing cap (21) is provided at the oil inlet.

3. The semi-trailer fuel tank protection structure according to claim 2, characterized in that: The top surface of the base (31) is provided with a slot (311), the size of which is adapted to the bottom size of the first protective frame (32) and the second protective frame (33).

4. The semi-trailer fuel tank protection structure according to claim 3, characterized in that: The first protective frame (32) and the second protective frame (33) have the same structure and both are U-shaped. The first protective frame (32) and the second protective frame (33) are both equipped with mounting plates (321) at their ends. The mounting plates (321) are fixedly connected to the frame (1) by locking bolts.

5. The semi-trailer fuel tank protection structure according to claim 4, characterized in that: The oil tank (2) is provided with a buffer space between the vehicle frame (1) and the second protective frame (33), and a buffer pad (35) is provided inside the buffer space.

6. The semi-trailer fuel tank protection structure according to claim 5, characterized in that: There are two sets of the shock-resistant units (34), and the two sets of shock-resistant units (34) are arranged opposite to each other on the outside of the oil tank (2); The shock-absorbing unit (34) includes a fixed frame (341) installed on the side of the frame (1), a slide bar (342) fixedly connected between the fixed frame (341) and the second protective frame (33), a first shock-absorbing plate (343) and a second shock-absorbing plate (344) respectively disposed on the outside of the slide bar (342), and a buffer portion (345) is provided between the first shock-absorbing plate (343) and the second shock-absorbing plate (344).

7. The semi-trailer fuel tank protection structure according to claim 6, characterized in that: A sliding sleeve (3431) is installed on the outer side of the first impact plate (343), and the sliding sleeve (3431) is movably connected to the outer side of the sliding rod (342); The second impact plate (344) is equipped with a guide sleeve (3441) on its outer side. The guide sleeve (3441) is movably connected to the outer side of the slide rod (342), and the side wall of the guide sleeve (3441) is threadedly connected with a locking member (3442). The surface of the slide rod (342) is provided with a locking groove that matches the end size of the locking member (3442).

8. The semi-trailer fuel tank protection structure according to claim 7, characterized in that: The buffer portion (345) includes a fixed seat (3451) installed on the side of the second impact plate (344) opposite to the first impact plate (343), a buffer seat (3452) movably disposed inside the fixed seat (3451) at one end, the other end of the buffer seat (3452) installed on the side of the first impact plate (343), and a damping pad (3453) provided between the buffer seat (3452) and the fixed seat (3451). The buffer portion (345) also includes a buffer post (3454) installed at the corner of the side of the first impact plate (343) and a buffer spring (3455) disposed on the outside of the buffer post (3454), one end of the buffer post (3454) extending through to the outside of the second impact plate (344).

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