Fixed mounting structure of auxiliary fuel tank and vehicle

Abstract

The utility model provides a fixed installation structure of an auxiliary fuel tank and a vehicle, and belongs to the technical field of vehicles, the fixed installation structure comprises a top longitudinal connecting piece and a bottom connecting piece, the top longitudinal connecting piece comprises a top front fixing belt and a top rear fixing belt; the front end and the rear end of the top front fixing belt are fixed to the front end of the top of the auxiliary fuel tank and a frame cross beam of a frame respectively, and the front end and the rear end of the top rear fixing belt are fixed to the frame cross beam and the rear end of the bottom of the auxiliary fuel tank respectively, so that front-back constraint of the auxiliary fuel tank is formed. The bottom connecting piece is arranged at the bottom of the auxiliary fuel tank, and the two ends of the bottom connecting piece are connected to the frame to restrain the auxiliary fuel tank in the left-right direction. According to the fixed mounting structure of the auxiliary fuel tank and the vehicle, the problem that the fixed end of the bottom connecting piece is cracked due to the fact that the auxiliary fuel tank bears front and back loads when the vehicle runs can be solved, the risk that a fixing belt of the auxiliary fuel tank is broken is also avoided, the use safety of the auxiliary fuel tank is greatly improved, and the safe running performance of the whole vehicle is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicles, and in particular relates to a fixing and mounting structure of an auxiliary oil tank and a vehicle. Background Art

[0002] The auxiliary fuel tank can effectively improve the vehicle's mileage, but it is not easy to carry it due to the layout and space of various components on the frame. The auxiliary fuel tank is limited in the front and rear directions mainly by straps, but it is not easy to find a suitable installation position for the straps that fix the auxiliary fuel tank. The auxiliary fuel tank is not fixed in place in all directions. During the movement of the vehicle, it is easy to cause the straps themselves to break or the welding position of the pipe beam that constrains the auxiliary fuel tank to crack, causing the auxiliary fuel tank to loosen and collide with surrounding components, causing failure. Utility Model Content

[0003] The embodiments of the utility model provide a fixing and mounting structure of an auxiliary fuel tank and a vehicle, aiming to solve the problem that the auxiliary fuel tank is not firmly fixed, which may easily lead to the breakage of the binding straps themselves or the cracking of the welding position of the pipe beam restraining the auxiliary fuel tank, causing the auxiliary fuel tank to loosen and collide with surrounding parts to cause failure.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a fixed installation structure of an auxiliary fuel tank, including:

[0005] A top longitudinal connecting member, comprising a top front fixing belt and a top rear fixing belt, wherein the front and rear ends of the top front fixing belt are respectively fixed to the front end of the top of the auxiliary fuel tank and a frame crossbeam of the vehicle frame, and the front and rear ends of the top rear fixing belt are respectively fixed to the frame crossbeam and the rear end of the bottom of the auxiliary fuel tank, constituting a front-to-rear direction constraint of the auxiliary fuel tank; and

[0006] The bottom connecting member is arranged at the bottom of the auxiliary fuel tank, and its two ends are connected to the vehicle frame to form left-right constraints on the auxiliary fuel tank.

[0007] In combination with the first aspect, in one achievable manner, it further includes a connecting plate fixedly mounted on the frame crossbeam, and the top front fixing belt and the top rear fixing belt are both fixed on the connecting plate.

[0008] In combination with the first aspect, in one achievable manner, the top front fixing strap and the top rear fixing strap are linearly arranged along the front-to-back direction, and two groups of the top front fixing straps and the top rear fixing straps are dispersedly disposed at the bottom of the auxiliary fuel tank.

[0009] In combination with the first aspect, in one achievable manner, the top longitudinal connector further includes an intermediate connecting belt, the intermediate connecting belt is connected between the top front fixing belt and the top rear fixing belt, and the intermediate connecting belt is wrapped around the top of the frame crossbeam.

[0010] In combination with the first aspect, in one achievable manner, both the top front fixing belt and the top rear fixing belt are provided with reinforcing ribs, and the reinforcing ribs extend in the front-to-back direction.

[0011] In combination with the first aspect, in one achievable manner, the bottom connecting member includes:

[0012] A bottom transverse connecting member is arranged at the bottom of the auxiliary fuel tank, one end of which is connected to the frame longitudinal beam on the left or right side of the frame, and the other end of which is connected to a frame cross beam of the frame, constituting a left-right direction constraint of the auxiliary fuel tank; and

[0013] The bottom fixing belt has two ends respectively fixed to the front end and the rear end of the bottom of the auxiliary oil tank, and crosses with the bottom transverse connecting member to form a front-to-rear direction constraint of the bottom transverse connecting member.

[0014] In combination with the first aspect, in one achievable manner, a limiting groove for constraining the bottom transverse connecting member along the front-rear direction is provided at a position on the bottom fixing belt that intersects the bottom transverse connecting member.

[0015] In a second aspect, an embodiment of the utility model further provides a vehicle, comprising:

[0016] The fixed installation structure of the auxiliary fuel tank; and

[0017] The auxiliary fuel tank is supported on a frame crossbeam of the vehicle frame and is close to a frame longitudinal beam of the vehicle frame; a positioning groove is arranged on the top of the auxiliary fuel tank to constrain the frame crossbeam in the front-rear direction.

[0018] In combination with the second aspect, in one achievable manner, a buffer pad abutting against the frame crossbeam is provided in the positioning groove.

[0019] In combination with the second aspect, in one feasible manner, the top of the auxiliary fuel tank is provided with a top limit groove for constraining the top longitudinal connecting member in the left-right direction; the bottom of the auxiliary fuel tank is provided with a bottom limit groove for constraining the bottom connecting member in the front-back direction.

[0020] Compared with the prior art, the fixing and mounting structure of the auxiliary fuel tank and the vehicle provided by the embodiment of the utility model have the following beneficial effects: (1) the auxiliary fuel tank is placed close to the longitudinal beam of the vehicle frame on one side, so that the bottom connecting piece can be directly fixed on the longitudinal beam of the vehicle frame, and there is no need to set an additional pipe beam bracket on the cross beam of the vehicle frame. Since the rigidity of the longitudinal beam of the vehicle frame is much greater than that of the pipe beam bracket, the connection strength of the bottom connecting piece can be improved, and the problem of cracking at the end of the bottom connecting piece can be avoided; (2) the fixing belt that runs through the top of the auxiliary fuel tank from front to back is divided into two sections, and both are connected to the cross beam of the vehicle frame. With the help of the rigidity of the cross beam of the vehicle frame and the vehicle cross beam, the bottom connecting piece can be directly fixed on the longitudinal beam of the vehicle frame, and the bottom connecting piece can be directly fixed on the longitudinal beam of the vehicle frame. The position of the frame crossbeam can improve the strength of fixing the auxiliary fuel tank in the front-to-back direction and limit the front-to-back movement of the auxiliary fuel tank, thereby protecting the installation positions at both ends of the bottom connecting parts and avoiding the problem of cracking at the installation positions of the bottom connecting parts; (3) a positioning groove is provided on the auxiliary fuel tank to cooperate with the frame crossbeam. The positioning groove is provided at the overlap position of the auxiliary fuel tank and the frame crossbeam. Through the stiffness of the frame crossbeam and the position of the frame crossbeam, the auxiliary fuel tank and the frame crossbeam are mutually restricted to inhibit the front-to-back movement of the auxiliary fuel tank, which can relieve the load-bearing force of the top fixing belts and play a certain role in limiting the front-to-back movement of the fuel tank.

[0021] The fixed installation structure of the auxiliary fuel tank provided in the embodiment of the utility model can effectively transfer the forward and backward movement load of the auxiliary fuel tank from the position of the pipe beam bracket to the segmented fixing belt, and transmit it to the frame crossbeam through the fixing belt. At the same time, the positioning groove on the auxiliary fuel tank has a certain restriction on the forward and backward movement of the auxiliary fuel tank, and plays a certain protective role on the fixing belt. Therefore, the auxiliary fuel tank is installed through the fixed installation structure, and the auxiliary fuel tank is reliably limited in the forward and backward direction, which can effectively avoid the problem of cracking of the pipe beam installation bracket due to the forward and backward load of the auxiliary fuel tank when the vehicle is running, and also avoid the risk of the auxiliary fuel tank fixing belt breaking when the vehicle is running, which greatly improves the safety of the auxiliary fuel tank and the safe operation performance of the whole vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the structure of the fixed installation structure of the auxiliary fuel tank provided in the embodiment of the utility model Figure 1 (Top view);

[0023] Figure 2 for Figure 1 A schematic structural diagram of a fixed installation structure of an auxiliary fuel tank provided in an embodiment (viewed from the bottom upward);

[0024] Figure 3 A schematic diagram of the structure of the fixed installation structure of the auxiliary fuel tank provided in the embodiment of the utility model Figure 2 (bottom looking up);

[0025] Figure 4 for Figure 1 A schematic structural diagram of a fixed installation structure of an auxiliary fuel tank provided in an embodiment (top view);

[0026] Figure 5 for Figure 1 A schematic structural diagram of a fixed installation structure of an auxiliary fuel tank provided in an embodiment (viewed from the bottom upward);

[0027] Figure 6 for Figure 1 A schematic diagram of the three-dimensional structure of the auxiliary fuel tank provided in the embodiment (top view);

[0028] Figure 7 for Figure 1 A schematic diagram of the three-dimensional structure of the auxiliary fuel tank provided in the embodiment (looking up from the bottom);

[0029] Figure 8 for Figure 1 A schematic diagram of a three-dimensional structure of an auxiliary fuel tank provided in an embodiment installed on a vehicle frame (top view);

[0030] Fig. 9 for Figure 1 A schematic diagram of a three-dimensional structure of an auxiliary fuel tank provided in an embodiment installed on a vehicle frame (looking up from the bottom);

[0031] Fig.10 A schematic diagram of a three-dimensional structure of an auxiliary fuel tank provided in an embodiment of the utility model installed on a vehicle frame Figure 2 (Top view);

[0032] Description of reference numerals:

[0033] 1. Top front fixing belt; 101. Reinforcing ribs; 2. Connecting plate; 3. Top rear fixing belt; 4. Bottom transverse connecting piece; 5. Bottom fixing belt; 501. Limiting groove; 6. Auxiliary fuel tank; 601. Top limiting groove; 602. Positioning groove; 603. Bottom limiting groove; 7. Frame longitudinal beam; 8. Frame cross beam; 9. Tube beam bracket; 10. Middle connecting belt. DETAILED DESCRIPTION

[0034] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0035] It should be noted that in the description of the present invention, the “front and rear directions” that appear are consistent with the front and rear directions of the vehicle, and the “left and right directions” that appear are consistent with the left and right directions of the vehicle. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0036] Please also read Figures 1 to 5 , Figure 8 and Fig. 9 Now, the fixing and installation structure of the auxiliary fuel tank provided by the utility model is described. The fixing and installation structure of the auxiliary fuel tank includes: a top longitudinal connecting member and a bottom connecting member, the top longitudinal connecting member includes a top front fixing belt 1 and a top rear fixing belt 3, the front and rear ends of the top front fixing belt 1 are respectively fixed to the front end of the top of the auxiliary fuel tank 6 and a frame crossbeam 8 of the vehicle frame, and the front and rear ends of the top rear fixing belt 3 are respectively fixed to the frame crossbeam 8 and the rear end of the bottom of the auxiliary fuel tank 6, constituting the front and rear direction constraint of the auxiliary fuel tank 6; the bottom connecting member is arranged at the bottom of the auxiliary fuel tank 6, and its two ends are connected to the vehicle frame, constituting the left and right direction constraint of the auxiliary fuel tank 6.

[0037] The fixing and installation structure of the auxiliary fuel tank 6 provided in the embodiment of the utility model has the beneficial effect that: the fixing belt that passes through the top of the auxiliary fuel tank 6 from front to back is divided into two sections, and both are connected to the frame cross beam 8. By means of the rigidity of the frame cross beam 8 and the position of the frame cross beam 8, the strength of the auxiliary fuel tank 6 in the front-to-back direction can be improved, and the front-to-back movement of the auxiliary fuel tank 6 can be limited; the installation positions at both ends of the bottom connecting piece can be protected, and the problem of the auxiliary fuel tank 6 cracking at the fixed end of the bottom connecting piece due to the front and rear loads when the vehicle is running can be avoided, and the risk of the fixing belt of the auxiliary fuel tank 6 breaking can be avoided, which greatly improves the safety of the use of the auxiliary fuel tank 6 and the safe operation performance of the whole vehicle.

[0038] The fixing and installation structure of the auxiliary oil tank 6 provided in the embodiment of the utility model further includes a connecting plate 2 fixedly arranged on the frame crossbeam 8, and the top front fixing belt 1 and the top rear fixing belt 3 are both fixed on the connecting plate 2. The top front fixing belt 1 and the top rear fixing belt 3 are both connected to the frame crossbeam 8 through the connecting plate 2. The connection plate 2 is provided to facilitate the connection of the top front fixing belt 1 and the top rear fixing belt 3. At this time, the top front fixing belt 1 and the top rear fixing belt 3 can be fastened to the front and rear ends of the connecting plate 2 by bolts, or can be fixed to the connecting plate 2 by means of clamping or welding with a clamping piece. Compared with directly fixing to the frame crossbeam 8, the connecting plate 2 provides a larger fixing surface and a flatter fixing surface for the two top fixing belts, thereby improving the convenience and reliability of fixing.

[0039] Optionally, the connecting plate 2 is welded or connected to the frame crossbeam 8 by bolts; each fixing belt includes the fixing belts at the top and bottom of the auxiliary fuel tank 6, which can be fixedly connected to the auxiliary fuel tank 6 by welding or screws.

[0040] In some embodiments, Figures 1 to 5As shown, the top front fixing belt 1 and the top rear fixing belt 3 are arranged linearly along the front-to-back direction, and two groups of top front fixing belts 1 and top rear fixing belts 3 are dispersedly arranged at the bottom of the auxiliary fuel tank 6. Each fixing belt at the top is connected to the frame crossbeam 8, which can improve the reliability of the position limit in the front-to-back direction of the auxiliary fuel tank 6 and protect the fixed positions of the two ends of the bottom connecting piece, thereby avoiding the problem of fixed cracking of the two ends of the bottom connecting piece when the front-to-back movement constraint of the auxiliary fuel tank 6 fails.

[0041] Specifically, the top connecting piece on the top of the auxiliary fuel tank 6 includes two front fixing straps and two top rear fixing straps 3, and all are connected to the frame crossbeam 8 through a connecting plate 2, which has a good limiting effect on the displacement of the auxiliary fuel tank 6 in the front and rear directions.

[0042] In some embodiments, Fig.10 As shown, the top longitudinal connecting member further includes an intermediate connecting belt 10, which is connected between the top front fixing belt 1 and the top rear fixing belt 3, and the intermediate connecting belt 10 is arranged above the frame crossbeam 8. The auxiliary fuel tank 6 is located below the frame crossbeam 8, and the supporting strength of the auxiliary fuel tank on the frame crossbeam 8 can be improved by the intermediate connecting belt connecting the top front fixing belt 1 and the top rear fixing belt 3 arranged above the frame crossbeam 8.

[0043] Alternatively, if Fig.10 As shown, the connecting plate 2 is fixed below the frame crossbeam 8, and the top front fixing belt 1 and the top rear fixing belt 3 are fixed on the connecting plate 2; the middle connecting belt 10 is located above the frame crossbeam 8, and both ends can also be directly fixed on the connecting plate, and can also be directly fixed on the top front fixing belt 1 and the top rear fixing belt 3. The middle connecting belt 10 can reduce the bearing capacity of the connecting plate, and the middle connecting belt 10 cooperates with the connecting plate one above and one below to improve the reliability of fixing and limiting the auxiliary oil tank 6.

[0044] In some embodiments, Figures 1 to 5 As shown, the top front fixing belt 1 and the top rear fixing belt 3 are both provided with reinforcing ribs 101, which improve the structural strength of each fixing belt, thereby reducing the cracking of each fixing belt and improving the reliability of the front-to-back direction limit of the auxiliary fuel tank 6. The reinforcing ribs 101 extend in the front-to-back direction, further reducing the disconnection of each fixing belt.

[0045] In some embodiments, Figure 2 and Figure 5As shown, the bottom connecting member includes: a bottom transverse connecting member 4 and a bottom fixing belt 5. The bottom transverse connecting member 4 is arranged at the bottom of the auxiliary fuel tank 6, one end of which is connected to the frame longitudinal beam 7 on the left or right side of the frame, and the other end of which is connected to a frame cross beam 8 of the frame, constituting a left-right direction constraint of the auxiliary fuel tank 6; the two ends of the bottom fixing belt 5 are respectively fixed to the front and rear ends of the bottom of the auxiliary fuel tank 6, and cross the bottom transverse connecting member 4, constituting a front-back direction constraint of the bottom transverse connecting member 4.

[0046] The bottom transverse connector 4 limits the auxiliary oil tank 6 in the left and right directions, and the bottom fixing belt 5 constrains the front and rear directions of the bottom cross beam connector, thereby avoiding the problem of cracking of the fixed ends of the bottom transverse connector 4.

[0047] The cross-shaped arrangement of the bottom transverse connecting member 4 and the bottom fixing belt 5 also improves the secure installation of the auxiliary fuel tank 6 .

[0048] Specifically, the bottom transverse connecting member 4 is a tubular beam. During installation, one end of the tubular beam is fixed to a frame longitudinal beam 7, and the other end is fixedly connected to the frame cross beam 8 through a tubular beam bracket 9. With the help of the rigidity of the frame longitudinal beam 7, the connection strength of the tubular beam is improved, thereby avoiding the problem of cracking at the end of the tubular beam; at the same time, one less set of tubular beam brackets 9 is used, which also plays a certain role in reducing weight.

[0049] Preferably, the front and rear ends of each fixing strap on the top of the auxiliary fuel tank 6 and the front and rear ends of the bottom fixing strap 5 are connected together at the front end by a bolt pair, and at the rear end by a bolt pair, and are tightly wrapped around the auxiliary fuel tank 6. At the same time, the bottom fixing strap 5 is also connected to the frame crossbeam 8 through the top fixing strap.

[0050] Alternatively, if Figure 3 As shown, the bottom fixing belt 5 is directly connected to the top front fixing belt 1 and the top rear fixing belt 3 as a whole, or the bottom fixing belt 5, the top front fixing belt 1 and the top rear fixing belt 3 are integrally formed to form a complete binding belt, which surrounds and binds the auxiliary fuel tank 6, and the two ends are respectively connected to the frame crossbeam 8 or the connecting plate 2 fixed below the frame crossbeam 8. This fixing method reduces the use of intermediate connection points and bolts, and the fixing and installation are simple and convenient.

[0051] In some embodiments, Figure 2 and Figure 5 As shown, a limiting groove 501 for constraining the bottom transverse connector 4 in the front-to-back direction is provided at the position where the bottom fixing belt 5 intersects with the bottom transverse connector 4. The limiting groove 501 on the bottom fixing belt 5 constrains the bottom transverse connector 4 in the front-to-back direction, protects the installation positions of the two ends of the bottom transverse connector 4, and further avoids the problem of cracking of the fixed end of the bottom transverse connector 4.

[0052] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0053] like Figures 1 to 10 As shown, based on the same inventive concept, an embodiment of the present application also provides a vehicle, including: a fixed installation structure of an auxiliary fuel tank and an auxiliary fuel tank 6; the auxiliary fuel tank 6 is supported on a frame crossbeam 8 of the frame, and is close to a frame longitudinal beam 7 of the frame; a positioning groove 602 is provided on the top of the auxiliary fuel tank 6 for constraining the frame crossbeam 8 in the front and rear directions.

[0054] Compared with the prior art, the auxiliary fuel tank fixing and installation structure and the vehicle provided by the embodiment of the utility model have the following beneficial effects: (1) the auxiliary fuel tank 6 is placed close to the frame longitudinal beam 7 on one side, so that the bottom connecting piece can be directly fixed on the frame longitudinal beam 7, and there is no need to additionally set the pipe beam bracket 9 on the frame cross beam 8. Since the rigidity of the frame longitudinal beam 7 is much greater than that of the pipe beam bracket 9, the connection strength of the bottom connecting piece can be improved, and the problem of cracking at the end of the bottom connecting piece can be avoided; (2) the fixing belt that runs through the top of the auxiliary fuel tank 6 from front to back is divided into two sections, and both are connected to the frame cross beam 8. By means of the rigidity and position of the frame crossbeam 8, the strength of fixing the auxiliary fuel tank 6 in the front-to-back direction can be improved, thereby limiting the front-to-back movement of the auxiliary fuel tank 6; (3) a positioning groove 602 is provided on the auxiliary fuel tank 6 to cooperate with the frame crossbeam 8. The positioning groove 602 is provided at the position where the auxiliary fuel tank 6 and the frame crossbeam 8 overlap. By means of the rigidity and position of the frame crossbeam 8, the auxiliary fuel tank 6 and the frame crossbeam 8 are mutually restricted, thereby suppressing the front-to-back movement of the auxiliary fuel tank 6, alleviating the load-bearing force of each fixing belt on the top, and limiting the front-to-back movement of the fuel tank to a certain extent.

[0055] The fixed installation structure of the auxiliary fuel tank 6 provided in the embodiment of the utility model, in conjunction with the positioning groove 602 set on the auxiliary fuel tank 6 itself, can effectively transfer the front-to-back movement load of the auxiliary fuel tank 6 from the position of the pipe beam bracket 9 to the segmented fixing belt, and transmit it to the frame crossbeam 8 through the fixing belt. At the same time, the positioning groove 602 on the auxiliary fuel tank 6 has a certain restriction on the front-to-back movement of the auxiliary fuel tank 6, and plays a certain protective role on the fixing belt. Therefore, the auxiliary fuel tank 6 is installed through the fixed installation structure, and the auxiliary fuel tank 6 is reliably limited in the front-to-back direction, which can effectively avoid the problem of cracking of the pipe beam mounting bracket due to the front-to-back load of the auxiliary fuel tank 6 when the vehicle is running, and also avoid the risk of the fixing belt of the auxiliary fuel tank 6 breaking when the vehicle is running, which greatly improves the safety of the auxiliary fuel tank 6 and the safe operation performance of the whole vehicle.

[0056] Since the auxiliary fuel tank 6 is directly close to one side of the frame longitudinal beam 7 (it can be close to the right frame longitudinal beam 7 or the left frame longitudinal beam 7), the tube beam bracket 9 on one side is cancelled, and only one group of tube beam brackets 9 is retained, which plays a certain role in reducing weight. Specifically, one end of the bottom transverse connecting member 4 is directly fixed to the frame longitudinal beam 7, the tube beam bracket 9 is fixed to the frame cross beam 8, and the other end of the bottom transverse connecting member 4 is fixed to the tube beam bracket 9. Figure 7 and Figure 8 shown.

[0057] In some embodiments, a buffer pad (not shown in the figure) is provided in the positioning groove 602 to abut against the frame crossbeam 8. The buffer pad can be bonded to the auxiliary fuel tank 6 to avoid problems such as abnormal noise and scratches caused by hard collision between the frame crossbeam 8 and the auxiliary fuel tank 6.

[0058] Specifically, since the cross section of the frame beam 8 along the front-to-back direction is an arched cross section, that is, the front and rear sides of the frame beam 8 have flanges, and the middle part is arched, positioning grooves 602 are provided on the auxiliary fuel tank 6 corresponding to the front and rear sides of the frame beam 8, so that the auxiliary fuel tank 6 and the frame beam 8 restrict each other. Therefore, the auxiliary fuel tank 6 relies on the strong rigidity and position accuracy of the frame beam 8 to avoid the problem of loose positioning in the front-to-back direction.

[0059] In some embodiments, Figures 3 to 6 As shown, a top limit groove 601 for constraining the top longitudinal connector in the left-right direction is provided at the top of the auxiliary fuel tank 6; a bottom limit groove 603 for constraining the bottom connector in the front-back direction is provided at the bottom of the auxiliary fuel tank 6. The limit grooves of the top longitudinal connector and the bottom connector provided on the auxiliary fuel tank 6 make the position of the auxiliary fuel tank 6 in the front-back direction and the left-right direction reliable and will not be affected by the operation of the vehicle, which greatly improves the safety of the auxiliary fuel tank 6.

[0060] Specifically, the top of the auxiliary oil tank 6 is provided with a top limit groove 601 matching each top fixing belt, and the bottom of the auxiliary oil tank 6 is provided with a bottom limit groove 603 matching the bottom transverse connecting member 4 and the bottom fixing belt 5. For explanation, the bottom limit groove 603 is no longer distinguished and marked in the figure, and the top limit groove 601 is also not distinguished and marked.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fixed installation structure of an auxiliary oil tank, characterized in that: include: A top longitudinal connecting member, comprising a top front fixing belt (1) and a top rear fixing belt (3), wherein the front and rear ends of the top front fixing belt (1) are respectively fixed to the front end of the top of the auxiliary fuel tank (6) and a frame crossbeam (8) of the vehicle frame, and the front and rear ends of the top rear fixing belt (3) are respectively fixed to the frame crossbeam (8) and the rear end of the bottom of the auxiliary fuel tank (6), constituting a front-to-rear direction constraint of the auxiliary fuel tank (6); and The bottom connecting member is arranged at the bottom of the auxiliary oil tank (6), and its two ends are connected to the vehicle frame to form left-right constraints on the auxiliary oil tank (6).

2. The fixed installation structure of the auxiliary fuel tank according to claim 1, characterized in that: It also comprises a connecting plate (2) fixed on the frame crossbeam (8), and the top front fixing belt (1) and the top rear fixing belt (3) are both fixed on the connecting plate (2).

3. The fixed installation structure of the auxiliary fuel tank according to claim 1, characterized in that: The top front fixing belt (1) and the top rear fixing belt (3) are arranged linearly along the front-to-back direction, and two groups of the top front fixing belt (1) and the top rear fixing belt (3) are dispersedly arranged at the bottom of the auxiliary oil tank (6).

4. The fixed installation structure of the auxiliary fuel tank according to claim 1, characterized in that: The top longitudinal connecting member also includes an intermediate connecting belt (10), wherein the intermediate connecting belt (10) is connected between the top front fixing belt (1) and the top rear fixing belt (3), and the intermediate connecting belt (10) is arranged around the top of the frame crossbeam (8).

5. The fixed installation structure of the auxiliary fuel tank according to claim 4, characterized in that: The top front fixing belt (1) and the top rear fixing belt (3) are both provided with reinforcing ribs (101), and the reinforcing ribs (101) extend in the front-to-back direction.

6. The fixed installation structure of the auxiliary fuel tank according to any one of claims 1 to 5, characterized in that: The bottom connecting member comprises: A bottom transverse connecting member (4) is arranged at the bottom of the auxiliary fuel tank (6), one end of which is connected to a frame longitudinal beam (7) on the left or right side of the frame, and the other end of which is connected to a frame cross beam (8) of the frame, constituting a left-right direction constraint of the auxiliary fuel tank (6); and A bottom fixing belt (5), the two ends of which are respectively fixed to the front end and the rear end of the bottom of the auxiliary oil tank (6), and cross-intersecting with the bottom transverse connecting member (4), thereby constraining the bottom transverse connecting member (4) in the front-rear direction.

7. The fixing and installation structure of the auxiliary fuel tank according to claim 6, characterized in that: A limiting groove (501) for constraining the bottom transverse connecting member (4) along the front-rear direction is provided at a position on the bottom fixing belt (5) that intersects the bottom transverse connecting member (4).

8. A vehicle, characterized in that: include: The fixed installation structure of the auxiliary fuel tank according to any one of claims 1 to 7; as well as The auxiliary fuel tank (6) is supported on a frame crossbeam (8) of a vehicle frame and is close to a frame longitudinal beam (7) of the vehicle frame; a positioning groove (602) is provided on the top of the auxiliary fuel tank (6) for constraining the frame crossbeam (8) in the front-rear direction.

9. The vehicle according to claim 8, characterized in that A buffer pad is arranged in the positioning groove (602) and abuts against the frame crossbeam (8).

10. The vehicle according to claim 8, characterized in that The top of the auxiliary oil tank (6) is provided with a top limit groove (601) for constraining the top longitudinal connecting member in the left-right direction; the bottom of the auxiliary oil tank (6) is provided with a bottom limit groove (603) for constraining the bottom connecting member in the front-back direction.

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